ML19246A546

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Environ Monitoring & Ecological Studies Program 1978 Annual Rept, Vols 1 & 2
ML19246A546
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 04/30/1979
From: Hestick M
NORTHERN STATES POWER CO.
To:
Shared Package
ML19246A544 List:
References
NUDOCS 7907030275
Download: ML19246A546 (608)


Text

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MONITORING AND

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ECOLOGICAL NM'/ VN 'l STUDIES PROGRAM . r . ;; t r -/,'.; i; ,- m } 1 (xW./ 4 .--

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g9 aF } s PRAIRIE ISLAND NUCLEAR GENERATING PLANT ( - gf _

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Cover Illustration COW V E1 CH (V. cracca), from A f%!d Guicio To Wikiflowers, copy rit ;ht 1968, by Roger Tory Peterson and Margaret McKenny Permission to reprotfuce illustration .,as given by lioughton Mif flin Company, , Boston, M A. 6 0_/2 .

CONTENTS I NT R O D U CT I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i V WATER ANALYSES O L Water C hemical A nalyses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .l.1-1 Water Temperatu re and Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . l. 2-1 U M E ECOLOGICAL STUDIES Periphyton Study (Attached Algae). . . . . . . . . . . . . . . . . . . . . . 2.1-1 ] Benthic Macroinvertebrate Study. . . . . . . . . . . . . . . . . . . . . . . 2. 2-1 Impingement Study (Fishes and Other Organisms)..... 2.3-1 Fi sh P opulation Study. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 4-1 Fis h C reel S u rvey. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 5-1 Terrestrial Plant Commu nity Studies. . . . . . . . . . . . . . . . . . . 2. 6-1 y S mall Ma mmal Study. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 7-1 O I SPECI AL INTEREST STUDIES Q Birds Killed by Striking Electrical Transmission Lines. 3.1-1 M P rairie Establish me nt Operations Study. . . . . . . . . . . . . . . . . 3. 2-1 E PHYSICAL STUDIES 2 E ro s io n S t u dy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1 -1 D redgi n g S t u dy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. 2-1 276 073

INTRODUCTION Results of Northern States Power Company's (NSP) ninth consecu-tive reporting of environmental monitoring studies for the calendar year 1978 are contained in this publication. The 1978 calendar year represents the fourth full year of two-unit operation for the Prairie Island Nuclear Generating Plant (PINGP). The 1978 annual report represents the final year of reporting for the following studies: Terrestrial Vegetation Study (Section 2.6), Small Mammal Study (Section 2.7), and Birds Killed Striking Transmission Lines (Section 3.1) . The terrestrial vegetation study indicates that other than con-struction activities the only power plant effects detectable are those associated with ice formation on trees adj acent to the plant cooling towers. Other changes in the vegetation community structure are associaced with natural succession. The small mammal study has defined the magnitude of natural changes in the small mammal populations in the vicinity of PINGP and indicates no abnormal population or community structure alterations. The magnitude and species composition of birds killed by striking transmission lines have been adequately defined, and the results indicate that those lines perpendicular to bird migration routes have the highest proportion of bird kills. Although not conducted in 1978, a fish creel survey will be conducted in 1979 by the Minnesota Department of Natural Resources (MDNR) Results of this study will be incorporated into the 1979 annual report, Prepared by: Science Services Section Environmental and Regulatury Activities Department Northern States Power Company 1 276 074

PRAIRIE ISLAND NUCLEAR GENERATING PLAfrI' ENVIRONMENTAL MONITORING PROGRAM 1978 ANNUAL REPORT WATER CHEMICAL ANALYSES (1.1) Prepared for Northern States Power Company Minneapolis, Minnesota by M. L. Hestick Environmental and Regulatory Activities Department Northern States Power Company 1.1-1 276 075

1.1 WATER CHEMICAL ANALYSES 1.

1.1 INTRODUCTION

Sampling was conducted by Environmental and Regulatory Activities Department personnel at Prairie Island. Parameters sampled included: phenolphthalein (p) and total (m) alkalinity, dissolved orthophosphates, total dissolved phosphorus, filter-able and nonfilterable residue, ammonia, nitrite and nitrate nitrogen, pH, conductivity, dissolved oxygen, turbidity, and temperature. Schmidt (1976) described each of the parameters and indicated its significance in water chemical analyses. 1.1.2 MATERIALS AND METHODS Samples were collected monthly at four stations (Figure 1.1-1). Station E-l represents upstream main channel river conditions, X-1 reflects the quality of intake cooling water, Y-2 indicates water quality following plant usage prior to mixing, and Station C-4 represents downstream main channel river conditions, after mixing with plant effluent. Samples were collected from top and bottom of the water column with a 6.2 liter Van Dorn water bottle and placed in new nlastic gallon jugs. Dissolved oxygen, pH, conductivity, turbidity, and temperature were analyzed at the Prairie Island Environmental Lab. The remaining parameters were determined according to Standard Methods (1975) by the NSP Chestnut Lab within 24-hours of collection. Instrumentation was similar to that used in previous years.

                                 -3 276 076

Chemical data were analyzed with a full factorial analysis of variance ( ANO VA) to determine seasonal, depth, and plant effects by combining data from Stations B-1 and X-1 (upstream) and comparing with data from Stations Y-2 and C-4 (downstream). Missing values, caused by uncafe ice conditions at some stations during winter, were estimated according to Li (1964). 1.1.3 RESULTS AND DISCUSSION The 1978 Mississippi River water quality data and ANOVA are presented in Tables 1.1-1 and 1.1-2, respectively. The letters "T" and "B" appearing after the site locations refer to top and bottom samples, respectively. For each sample collected, annual mean, median, standard deviation, and range are also listed in Table 1.1-1. Analysis of variance assumes that variability in chemical concentration is caused by seasonal variation, depth, and whether the sample was collected above or below the plant. Some variation may also be caused by interaction between any two of these factors; the factors are not independent and together are contributing to changes in the parameters sampled. Highly significant differences (P1 01) between upstream and downstream stations were observed for all properties except nitrite nitrogen, with regard to time (month of the year). Nitrite nitrogen showed a significant difference (P5 05). Temperature showed a highly significant difference with regard to plant effect. Ammonia showed a significant difference also attributable to plant effect. 1.1-4276 077

In 1976 and 1977 there were significant differences (P < .05) between upstream and downstream conductivity values. The 1977 difference was attributed to the fact that conductivity values had not been corrected for differences in sample temperature. The 1976 figures were also not adjusted for the temperature differences. The 1978 figures were corrected for the sample temperature differences using the equation:

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R 1 + 0 0 00 t- 25) ' where R = resistance of sample, ohms; C = cell constant; t= temperature degree C. No significant difference between upstream and downstream values was seen. No other property analyzed showed any significant difference. 1.1.4 LITERATURE CITED Eberley, L W, 1977 Water Chemistry. In Environmental Monitoring and Ecological Studies Program. 1977 Annual Report for Prairie Island Nuclear Generating Plant near Red Wing, Minnesota, Volume 1. Northern States Power Company, Minneapolis, Minnesota. Standard Methodi for the Examination of Water and Waste Water, 14th edition, 1975, A PHA-AWWA-WPCF , American Public Health Association, Washington, D. C. 1.1-5 6 078

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Table 1.1-1 SITE B-1B 1976 FAGE I O!SSOLVE0 CRTHCPHCSPPATE TOTAL O!SSOLVE0 FIL T E RAE LE NONFILTERABLE P-ALKALINilY P-ALKALINITY PHOSPHORUS PHC5PHORUS RtS10UE RESIOJE FG/L AS C AC O3 PC/L AS CACO 3 MG/L P PG/L P PG/L MG/L JAN L.0 176.000 0.140 -1.000 300.00C 22.600 FEB C.C 192.000 0.100 0.14G 350.000 7.800 PA R 0.0 167.000 0.1C0 -1.000 260.000 2.200 APR 0.0 94.000 0.040 0.C70 200.000 36.000 MAY 0.0 122.000 0.009 0.026 310.00G 28.000 JUNE 0.0 120.000 0.090 0.100 310.000 54.000 JULY 0.0 101.00C 0.090 0.120 210.000 49.000 AUG 0.0 152.000 0.070 0.120 260.C00 60.000 SE P 0.0 115.000 0.100 0.130 220.000 240.000 OCT O.0 135.000 0.020 0.070 420.000 30.000 NO V 0.0 130.000 0.0e0 -1.CCO 210.000 2C.000 DE C 0.0 142.000 0.100 0.110 240.000 4.CCO MEAN 0.0 137.167 0.072 0.096 257.500 46.133 S. D. 0.0 29.9e7 C.038 C.036 49.333 63.925 MEDIAN C.0 135.000 C.090 0.110 260.000 30.000 LCwCSI 0.0 94.000 0.009 C.026 200.000 2.200 g HIGHEST. 0.0 192.000 0.140 0.140 350.000 240.000 Y e AMPCNIA NITRITE NITRATE DISSCLVED NITRGGEN NITROGEN NITRCGEN CCNOUCTIVITY OXYGEN TilRB1DITY TEMPERATURE MG/L N MG/L N MG/L N PH UMHOS/CM MG/L JTU OtGREES L JAN 0.74G 0.014 1.010 7.600 461.000 9.900 5.000 C.*00 FEB 0.550 0.120 0.320 7.600 500.000 11.100 3.0C0 0.0 MA R 0.700 0.01e 0.920 7.500 482.000 11.400 3.000 0.50C APR O.260 0.020 0.640 7.900 300.000 12.100 15.CCO 7.500 MAY 0.160 0.C22 0.310 8.300 537.000 10.000 10.000 17.000 0.330 0.050 1.090 8.100 430.000 7.900 22.000 22.0C0 JUNE 0.190 0.042 0.550 7.900 325.000 6.000 5.600 20.5C0 JULY O.460 0.076 0.780 8.000 489.000 6.600 20.000 24.500 AUG O.350 0.043 0.3e0 7.700 394.000 7.700 40.000 21.000 SE P 0.380 0.022 0.310 8.000 421.000 9.000 1C.0C0 11.0C0 OCT 4.500 NOV 0.400 0.G21 C.320 8.300 422. COG 11.300 7.000 0.010 0.570 8.000 500.000 11.700 2.500 0.0 pgj OEC 0.640 MEAN 0.4o3 0.038 0.600 7. M8 438.417 9.625 11.925 10.742 0.032 0.289 0.26% 71.929 2.119 11.005 9.760 C3% S. O. 0.243 10.000 11.C00 MEDIAN 0.400 0.022 0.570 e.000 461.000 10.eCC C.31c 7.300 300.000 6.cc0 2.500 0.0 LCwES1 0.16C 0.010 C3 HIGHEST C.950 0.120 1.09 8.300 537.000 12.1CO 40.00G 24.500 j7 CD

TE: -1.0CO'S ARF Mi$$1NG VALUES
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                                                                                                                           - (fV ' ;W CI5SCLVED GR1HCPHCSFHATE        TOTAL CI55GLVE0            FILTERABLE               NCNFILIEPAo1E P-ALKALINITY         M-ALKALINIIY          Ph0$PH09U5          PMC S PF OR L'S               RESICUE                 RESILUE FG/L AS CACO 3       MG/L AL CALO3           MG/L P                  MG/L P                    MG/L                    MG/L JAN                  0.0              191.000                0.1*0                  0.20C                   $20.000                    4.200 FEb                  0.0              192.000                0.110                  0.180                   350.000                    6.000 MAR                  0.0              In6.000                C.100                  0.12C                   270.CCC                    2.400 APR                  0.0               4C.CCL                0.050                  G.070                   190.000                  34.000 MAY                   C.0              123.C00                0.013                  0.026                   330.000                  26.000 fUNE                0.0              116.000                6.090                  0.C90                   310.000                  45.000 JULY                  0.0              100.000               0.090                   C.120                   210.000                  39.000 AUG                   O.0              151.COC               0.C 70                  0.140                   2?O.000                  42.C00 SE P                  0.0              112.000               C.100                   0.130                   230.CCC                  99.000 OCT                   0.0              135.C00                0.C30                  0.C?O                   ?l0.000                  16.00G NC V                  0.0              131.000               0.060                 -1.000                    210.0C0                  1P.GC0 LE C                  0.0              143.0C0               C.0E0                   0.120                   250.000                    3.000 MEAN                  O.0              136.000               0.C79                   0.11?                   260.833                  28.050
5. D. 0.0 29.882 0.035 C.C46 54.516 27.333 MEDIAN 0.0 135.CCG 0.OPG 0.12C 250.000 26.000 LOWEST 0.0 90.000 0.013 0.02E 19C.CCC 2.400 HIGHT!T 0.0 102.CGC 0.140 0.200 350.000 99.000 f ANMGNIA N1TRI1E N11RAIE 0155CLVED 7 NITDCGEN NITROGEN NITRtLEN CONDUC?IVI1Y CXYGFN TU2BIDITY TEMPERATLRE

- FG/L N WG/L N MG/L N PH UMHOS/CM MG/L JTU GEGREES C JAN 0.610 0.020 1.080 7.6C0 395.CCC 11.700 3.C00 0.G FEB 0.950 0.013 0.39u 7.t00 469.000 11.100 3.000 0.0 MAR C.670 G.019 G.280 7.5CO 464.000 11.200 2.000 1.000 APR 0.240 0.019 0.680 7.800 266.000 12.1GC 10.C00 7.000 MAY 0.180 0.022 1.330 P.300 500.C00 10.800 10.000 17.000 JUNE 0.300 0.040 1.160 8.0G0 420.000 e.100 20.000 22.00C JULY 0.160 0.C40 0.690 7.cCO 320.u0C 6.20C 6.400 2C.700 AUG 0.440 0.070 0.7?O 8.300 469.000 6.6C0 15.000 24.500 SE P 0.340 0.040 C.360 7.700 3e3.00C 7.700 25.000 21.000 OCT 0.33C 0.022 0.310 8.000 414.000 5.9CC 8.000 11.000 NOV O.460 0.021 0.320 8.300 422.C00 11.3CC 6.5C0 5.000 CEC 0.6E0 C.010 C.54C 8.000 Ste.CCO 11.900 2.500 0.0 MEAN G.463 0.028 0.657 7.908 423.c67 9.ECO 9.3t7 10.767 N 5. G. 0.2 5 F 0.017 0.362 C.287 70.581 2.164 7.247 9.'59 N ME DI AN C.440 0.022 0.660 8.000 422.CCC 11.100 3.0C0 11.0C0 LCM 5' 01" 0 010 C 2'G T bCD 2E' CC 6 2*0 i *CG G0 Ch HIGHEST L.950 0.070 1.33L e.30C 518.000 12.lCG 25.000 24.500 0 CO NCTE: -1.C00'S ARE MISSING VALUES

SITE C-41 1978 FAGE 4 Table 1.1-1 (Con t inued ) DISSOLVEu CRTHCPHOSPFATE TOTAL CIS50LV50 FILTERABLE NCNFILTEPAELE P-AtkAtINI1) F4-ALKALINITY PHOSPHORUS PFO$PHORUS RESIDUE RESIOUE MG/L AS CAC03 MG/L AS C#CG3 MG/L P MG/L P MG/L Mb/L JAN 0.0 let.00C C.130 -1.000 300.000 3.200 FEB G.0 173.000 0.100 0.140 300.000 5.800 MAR 0.0 lo$.00C C.CSC -1.000 240.C00 1.E00 APR 0.0 109.000 C.050 0. 06 0 230.000 23.000 MAY 0.0 124.000 0.005 0.022 300.000 24.000 JUNE 0.0 122.000 C.C90 C.090 320.000 32.000 JULY 0.0 10?.000 J.us0 0.140 190.00G 42.GG0 AUG 0.0 140.000 0.0 F0 0.120 240.000 26.000 SE P 0.0 103.000 C.070 0.130 220.0C0 65.000 CCT 0.0 139.000 C.C30 0.070 220.000 21.000 NO V o.0 130.000 0.070 -1.000 210.000 16.000 000 C.C 139.000 0.0E0 0.12C 240.000 4.000 MEAN 0.0  !?4.33? 0.072 0.09s 25C.833 21.983 S. D. 0.0 24.212 0.C33 0.041 42.738 16.476 MEDIAN O.0 13 9.CC O C.080 0.120 240.000 23.000 LOWE ST C.0 103.000 0.005 0.022 150.000 1.E00 g HIGFE$7 0.0 173.000 C.130 0.140 320.CCC 65.000 7 w EJ AJ9t N I A NITRITE NITRATE DISSOLVED NI 'R CbE N NITRLCEN NI1ROGEN CONDUCTIV!1Y Cx) GEN TU A B I DI T Y TEPPERA10kE MG/. N MG/L N PG/L N PH UMHCS/CM PC/L J1U CEGREFS C JAN G.t96 0.024 1.120 7.700 426.000 11.500 3.0C0 C.400 ftE C.E80 0.013 0.390 7.200 469.000 11.2CC 3.000 0.0 MAR J.680 0.02? G.250 7.400 460.000 11.300 3.000 0.500 APR 0.170 0.026 0.620 7.900 250.000 12.500 10.C00 7.500 MA Y 0.100 0.022 0.150 b.400 550.C00 11.e00 5.C00 17.000 JUNE O.300 0.06C 1.Os0 8.100 430.000 7.400 15.000 22.000 JULY 0.16C C.042 0.480 7.ECO 320.000 7.6C0 82.000 20.500 AUG 0.6CG 0.06E 0.790 8.100 SCO.COC 6.300 10.000 24.000 SE P 0.230 0.C38 0.260 7.EOC 372.000 7.ECO 20.000 21.0C0 OCT C.240 C.021 C.33C 8.200 408.000 9.500 10.000 11.000 NOV L.440 0.021 0.30C '.300 439.000 11.300 6.500 5.000 N CEC 0.760 0.011 C.560 e.COC 500.000 31.eC0  ?.500 0.0 N U.442 0.C31 G.54C ).oCL 436.000 9.993 l'.167 10.742 VEAN

5. D. 0.261 0.016 0.314 0.355 6o.863 2.141 22.C35 9.669 FECIAN U.4GC 0.024 0.480 8.000 439.000 11.300 10.000 11.000 C L0nf S T O.100 0.011 0.150 7.200 320.000 6.300 2.5C0 62.000 0.0 24.000 G.EEC 0.068 1.120 e.400 550.000 12.500 Q FIGHEST IN)

NCTE: -1. C C 0 ' S A R E MISSING VALUES 3 ' *r ' ^ q gf fM 'rd :f) ft;T Ti "N N M k] q.j i* 'I , j ]p b I

( l Table 1.1-1 (Continued) SITE C-49 1972 PACE 3 DISSCLVE0 CRTHCPbCSPHATE TOTAL DISSOLVED FILTERA?tE NONFILT'RAeLE P-AlkALINilY P-AlkAllNITY PHCSPHCQUE PHOSPHORUS RE SIE UE RE5100E MG/L AS LACO3 MC/L AS CACC3 MG/L P MG/L P PG/L MG/L JAN 0.0 170.000 0.150 0.180 290.000 2.600 FEB 0.0 170.C00 0.10C O.14C 300.000 6.600 MAR 0.0 165.000 0.070 -1.000 260.000 2.0C0 APR C.C 106.C00 0.050 0.070 240.000 25.000 MAY 0.0 125.000 0.006 0.G24 3C0.C00 33.000 JUNE 0.0 120.000 0.090 0.C9C 330.000 49.000 JULY 0.0 111.000 0.100 0.140 230.000 44.000 AUG 0.0 140.000 0.C7C G.120 250.000 31.000 SE P 0.0 105.000 0.050 0.120 220.000 9C.000 OCT C.O 135.000 0.020 0.070 220.000 22.000 NOV O.0 133.000 0.060 -1.000 220.000 17.000 OEC 0.0 140.000 0.090 0.110 240.00C 3.000 MEAN 0.0 135.500 0.075 L.106 258.333 27.117

5. D. 0.0 23.624 0.038 0.044 37.618 25.454 ME01AN 0.0 135.000 0.09C 0.120 250.000 25.000
 ."   LOWEST               0.0             105.0u0              0.006                 0.024                    220.000                  2.000 HIGHEST              0.0             17C.000              0.150                 0.180                    330.000                S0.000 w

AMMONIA NITRITE NITRATE DISSOLVED NITROGEN NITRCCEN NITROGEN CCNDUCTIJITY OXYGEN TURBIDITY TEMPERA 1URE MG/L N MG/L N MG/L PH UMHCS/CM MG/L JTU CEGREES C JAN 0.700 0.026 1.160 7.700 409.000 10.900 3.C00 0.000 FEB 0.640 0.C13 0.410 7.500 4e4.000 1 1. .' 0 C 3.000 0.0 MAR O.680 0.013 0.320 7.500 468.000 11.400 3.C00 1.000 APR 0.180 0.026 0.620 8.000 343.000 12.e t o 10.000 6.000 MAY 0.120 0.022 0.360 8.400 536.000 11.e0L 10.000 17.000 JUNE C.320 0-050 1.060 e.100 430.000 7.400 15. ';C 0 22.000 JULY 0.16L u.052 0.520 7.9JO 355.000 6.600 9.3C0 20.300 AUG 0.400 C.068 C.bCO a.20C 490.000 6.3C0 s5.000 24.500 SE P 0.310 0.036 0.380 . 600 372.000 7.eC0 30.000 20.000 OCT 0.230 0.022 0.330 8.100 419.000 9.100 10.0C0 11.000 Nov 0.350 L.022 0.3TO e.300 441.00C 11.500 ,000 5.000 ps) DEC 0.660 0.011 0.560 8.000 481.000 11.ECO 2.500 C.J -- -J MEAN O.412 0.030 C.574 7.958 435.667 9.893 9.817 10.600 C 5. D. 0.245 0.01P 0.2?e 0.291 59.278 2.362 7.760 9.522 PE01AN 0.350 0.024 0.520 8.C00 441.0C0 11.200 10.000 11.000 C:D LCwEST 0.120 0.011 0.320 7.500 343.000 6.30G 2.500 0.0 cy3 HIGHEST 0.640 0.C60 1.160 8.400 536.000 12.800 30.C00 24.500 W NOTE: -1.00C'S ARF MISSING VALU(5

SITt x - 11 197o pact e Ta'la 1.1-1 (C on t inued ) DISSCLVED Ch1FC FHC 5 Fb A TF TUTAL Cli!ULVEC FILTERAELE NONFILlERAELE P-ALkALINIIT P-ALAALINITV Ph0EPDCDU! FFG5PHCRUS kt5!OUE RESICUE MG/L AS C ACO3 PG/6 1* CACO 3 MC/L F MG/L P MG/L FG/L JAN 0.0 105.C00 0.120 0.13C 250.000 3.600 FE E 0.0 173.000 0.090 0.11L 300.0C0 6.400 FAP 0.0 167.000 P.110 C.12C 270.00G 3.o0C APR 0.0 ll7.CCG C.0*U C.08C 250.000 13.00C FAY 9.000 1/;_ecs 0.0G1 C.019 310.000 24.000 J L'h E 0.0 121.000 0.076 C.0LG 32C.000 39.000 JULY G.C 120.00G L.140 0.170 24C.000 25.000 AUG 0.0 139.CGG C.09 0.100 240.C00 32 000 SE F C.C */9.G00 C.C7C C.110 19G.000 91.000 DCl C.C 119.000 0.010 0.G60 220.000 24.000 NC V 2.000 126.000 C.C30 -1.CCC 210.000 16.00G GEC C.0 142.000 0.0e0 0.100 220.000 4.000 134.917 0.071 0.C48 254.167 23.*67 MEAN O.917 41.P78 24.314 2.t10  ? ? . 9 '* 2 0.G4 3 0.C39

5. D.

0.090 0.100 250.000 24.00C NETIAP 0.0 129.C00 190.000 3.60C 94.CCL C.CCI C.019 91.000 LOkE51 0.0 0.140 0.170 32C.CCC HICFL5T 9.000 173.000 w DISSCLVED TEMPtRATURE NITRITE NITRATE CxYC EN TURSIDITY AMMONIA CCNGUCilVll' J1U DEGREES C 7 N11RCGEN NITROGEN A I T ROCE N PG/L N PH UMHL!/CM MG/L 3.000 0.0 9

  • PG/L N MC/L N 7.700 eco.C?' 10.400 O.0 0.011 0.v2C SCC.CC3 10.CCC 3.CCG JAN 0.600 0.47C 7.4CC 11.000 4.000 1.000 0.840 0.013 7.400 476.000 e.500 FE B 0.016 0.390 12.30C 5.00C MAR C.7ec 2.000 386.00C 5.C00 17.0C0 0.032 0.e90 549.C00 11.900 APR o.140 C.2 6G 2.7CC 16.CCO 21.500 0.040 0.024 65C.CCC E.3C0 20.200 PAY 1.07G 6.2CC 7.300 L.900 JUNE 0.290 0.070 0.630 7.9CC 375.000 10.000 23.500 0.140 0.059 479.0CC 7.200 19.50C JLLY U.620 6.3CC 6.500 25.000 AUG 0.230 0.072 G.SEC 7.700 333.000 10.000 11.000 0.260 0.C?9 d.3GO 405.000 11.300 3.500 N SE P CCI C.29C 0.020 0.320 0.3o0 e.7CO 422.000 12.2G0 6.500 2.5C0 0.0 q 0.lEC 0.019 e.000 500.000 11.200 NCV 0.5t0 0.670 0.C 10 10.475 CE C 9.967 e.075 9.C25 456.417 9.440 0.031 C.587 76.664 2 . 0 9 *, 6.596 ME A N 0.371 0.2 75 0.437 6.500 11.000 Q C.275 0.023 8.CCO 478.C00 11.LLO 2.500 0.0 S. D. 0.SeO 6.5CL

() PECIAN C.2e6 C '24 10 0.260 7.400 ?33.CCG 12.300 25.000 23.500 A LCh25T 0.C4C 3.700 0C0.C00 72 1.070 HICHEST 0.t40 Ncit: -1.C00'5 ARE "ISIINI ValUIS n);;s o b dd e n v

                                               ~
                                                                                       '\-f,,!   :,  I If                      !          U bgU .%' -@;& i SITE X-1B     ld                         i                               PAGE    5 Table 1.1-1 (Continued)                                                                    ,

DISSOLVED CRIHCPhCSPHLIE TOTAL DISSCLVE0 FILTERALLE k.ONFIL1ERAbLE P-ALKALINITY M-ALKALINITY PHOSPNLkU$ MG/L A5 CACC3 Ph0$PH00US RESIDUE RESIDLE MG/L AS C AC03 wG/L P MG/L P MG/L JAN C.0 162.00C MG/L FE6 0.14C 0.160 280.000 2.4v0 C.0 170.000 C.ORO KA R O.0 C.140 330.000 12.0C0 162.C00 0.07v 0.120 APR 0.0 250.000 2.800 119.000 0.06C 0.0e0 250.000 MAY 2.000 131.000 le.CCC 0.009 0.C24 210.000 59.000 JUNE O.0 124.00C 0.07C 0. Cec 330.CCC 4v.000 JULY C.0 122.000 C.I'C C.19C 240.000 24.000 AUG 0.0  ?.12.000 0.090 G.100 250.000 35.0C0 SL P 0.0 99.000 0.070 0.11C 200.0CC 34.0G0 DC T C.0 134.000 0.020 0.C60 210.000 48.000 NC V C.0 119.000 0.060 -1.000 230.000 16.000 OEC O.0 142.000 0.000 G.10C 24C.000 4.000 MEAN C.167 133.000 0.G72 C.1C6 260.000 24.e50 S. D. 0.577 22.COE 0.034 0.046 *3.4e5 19.78c f MEDI A N 0.0 131.000 C.07C C.1CC 250.000 24.000 s LO W E S T O.0 v9.000 0.009 0.024 200.000 2.400 htGHES1 2.000 170.C00 0.140 0.190 330.000 59.000 AMMONIA N 11R Il t N11 RATE Dl!SCLVE D NITROGEN NITROGEN NIIROGEN CCNGUCl!V11Y CXYGcN TUREIG11Y TEMFERATURE MG/L N MG/L N MG/L N PH OMHOS/CM MG/L Jiu JAN DEGREES C 0.720 0.021 1.040 7.600 Sec.C00 10.400 3.000 FEB 0.0 0.7eo 0.G13 0.320 7.40C 480.000 10.200 4.000 0.0 MAR C.68G 0.016 0.310 7.400 478.000 11.200 3.000 2.000 APR C.160 0.C33 0.730 8.500 386.u00 12.500 10.000 S.500 MAY 0.060 0.024 0.390 8.500 549.000 11.9C0 15.000 17.000 JUNE O.280 0.060 1.020 8.000 430.000 7.700 21.0C0 21.G00 JUL Y 0.140 0.620 0.600 7.900 385.000 6.6C0 6 5CC 20.000 AUG O.290 0.740 C.820 e.2CC 4?9.000 6.600 15 000 23.500 SE P C.270 0.030 0.380 7.6CC 430.000 6.500 30 000 19.500 001 0.320 0.020 0.420 8.200 405.CCO 10.6CC 20.000 1C.000 NOV 0.360 0.021 0.320 8.500 422.000 12.200 5.500 3.000 CEC 0.700 C.CC4 0.570 e.C00 500.000 11.200 3.000 00 N q MEAN O.400 0.134 C.5e2 7.9e3 460.333 9.8u0 II.5e3 10.375

5. D. 0.252 0.257 0.264 0.415 62.066 2.303 S.7?0 9.323 O MEDIAN 0.320 0.024 0.570 e.000 478.0C0 10.600 10.000 10.000 LOkEST O.06C 0.00v 0.31C 7.400 3d5.000 6.500 3.CCO 0.C C HIGHEST 0.7e6 0.740 1.C4C 8.500 5e0.C00 12.5C0 30.000 23.500 CO
@                                                           NOTE: -1.CCO'S ARE MI S $1 NC VALUES

h N

                                                                      $1TE Y-27 dY!$j$hdUUMOU@                               1972 PAGE 2 Table 1.1-1 (Continued)

DISH LVE D LE 1FE PhC50Ht TE IDIAL bl55DLVED FILlEkAELL NONFILIEdAELE P-ALFAtIN11Y M-AL"ALIN11Y PFC 5P HC ht's PHC5PHCRUS PFSILLE RE51DLE kb/L AS CACO 3 Pb/L AC C ACC3 MG/L P PG/L P MG/L hG/L JAN C.0 16*.000 0.150 -1.00C 2*0.000 1.200 fEb 0.0 171.C 0 0 0.1C0 0.13C 340.000 5.200 MAR C.O 167.C00 0.100 0.110 260.CCC 2.'CG APR C.0 114.CC0 C.0tt 0.06C 25C.CCO 20.000 MAY 5.000 134.006 0.00t 0.021 320.CCC 29.000 JUNE 0.C 124.000 L.C90 C. llc 320.00C 36.000 JULY G.0 121.000 0.140 0.160 240.000 25.000 AUG 0.0 153.000 C.CEO C.120 27C.CCG 33.000 SEP 0.0 95.CCC C.070 C.100 190.000 44.0C0 DC I 0.0 131.LCC C.C2C 0.C90 220.000 27.000 NOV 0.0 135.000 0.060 -1.000 230.000 18.000 CEC 0.0 16?.G00 0.07C C.110 250.000 3.000 MEAN 0.417 137.667 0.074 0.lC? 264.167 20.367

5. D. 1.443 23.011 0.04; C.027 44.611 14.463 MEDIAN 0.0 136.00C 0.CSG C.110 26C.000 25.000 LOWEST 0.0 95.000 0.005 C.C21 190.CCC 1.600 HIGHE51 5.000 171.0C0 C.15c G.16C 340.000 44.000 v

L s H AMMCNIA NITA11E NITRATE D155CLVE0 NITROGEN NITROGEN NITRCGEN CCNCUCTIVITY CNYGEN TURBIDITY TiMPERATUkE MG/L N MG/L N PM UMHCS/CM PG/L JTU DEGREES C MG/L N O.650 0.021 1.010 7.500 5!e.COC 1C.300 1.LCO 0.100 JAN 1.000 0.E40 0.013 0.410 7.6C0 4*4.000 4.660 2.000 FE B 0.024 0.300 7.000 471.0C0 11.000 3.000 4.000 WAR 0.600 APR 0.230 0.030 0.77C 6.CCC 364. COG 9.500 10.0C0 6.500 MAY U.040 0.022 1.370 8.6CO 548.000 12.200 10.000 21.000 0.C6C 1.26C e.300 430.000 7.800 16.000 25.5CC JUNE 0.240 12.000 b.057 0.620 e.000 375.000 7.E00 7.200 JULY G.16u 27.500 AUG 0.230 0.0e0 C.9EC 8.400 5C0.C00 7.200 15.0C0 0.025 0.400 8.100 I23.000 7.10C 20.000 25.000 SEP O.160 16.000 0.C20 C.*C0 8.400 434.000 9.000 10.000 CCT 0.130 s.500 13.000 0.220 0.024 0.520 6.500 434.000 10.400 N NC V CEC 0.590 0.021 C.6*O e.CCO 4e4.000 11.200 3.000 3.000 447.C83 9.408 8.892 13.717 b VE AN 0.342 0.032 0.723 E.108 1.675 5.E96 10.410 3.253 0.017 0.357 0.337 7C.942

5. O. 9.5GD 1J.000 16.000 C.230 0.C24 0. 6 .0 8.100 444.C00 C MEDIAN 323.C00 7.asG  ?.000 0.100 0.040 0.013 0.300 7.tCG g LCnEST 55?.000 12.200 20.0C0 27.500 H1 CHEST O.8%0 0.060 1.370 e.eCC NOil: -1.CC M S AGE w!S$1NG %ALLES

Table 1.1-1 (continued) 511t 3-2E 1476 sACE 1 CI550LVEC (RTHCPHC5FFAIF 101AL DISSCLVFD FILifRABLE P-ALKALIN 11Y M-ALKALINIlY PPG 5PHOkb5 h0NFILTERACLL MG/L Ai CACC3 Ph05eh0HOS RE510VL RE5!bbE

                                          *C/L A5 C ACO3              PC/L P                  MG/L P               MG/L JAN                  0.0                                                                                                        MG/L 105.000                   0.110                  C.150 FEB                  G.0               175.000                                                             2tC.C00                3.800 KA R C.lCC                  0.140              300.000                c.t00 0.0               169.GCC                   0.04v APR                  C.0                                                               -1.LCC              260.0C0                2.200 115.CGL                  U.0to                   0.060 PAY                  0.0                                                                                   250.900              21.000 132.000                  0.004                   C Cle              340.0C0 JUNE                 3.000             124.CCO                                                                                  40.000 JULY                                                             0.0HC                  C.000              32C.000 0.0               11S.000                                                                                  +9.000 AUG                                                              C.130                  0.15C              230.000              35.000 0.0               144.CCO                  C.1CC SEP                  0.C                                                                0.110              200.000              39.000 96.000                  0,070                   0.100 UCT                  O.0                                                                                   190.CCC              57.000 124.C00                   0.02C                  C.600              220.000 NOV                  0.0               139.C00                                                                                  35.000 OEC C.C60                  -1.C00              120.000              20.000 0.0               13s.000                  0.GEC                   C.100              250.CCU                6.CCG MEAN                 C.25G             136.o67 S. D.                0.866 0.07?                   C.152              2"5.000              26.383 23.735                   0.C3'                  C.163               47.194 MEDIAN               0.0               139.CCO                                                                                  18.674 C.CPC                   C.110              250.000 f   LOWEST               C.0                96.000                                                                                  25.000 0.004                   0.01t              190.C00               2.20C
   >-. HIGHEST              3.C00             175.C00                  C.110 t                                                                                          0.600              340.0C0              57.000 U(

AMMONIA N!1RIl? NI1 RATE 0155CLNED NITROGEN NITROGEN NITROGEN CCNDUC11VITY CAYGEN TURP1011Y TEMFERAlbRE MG/L N MG/L N M'; / L N PH UPH05/CM MC/L JAN 0.c 10 JTU CEGREES L 0.024 1.CSC 7.700 553.000 10.300 3.C00 FE B 0.650 0.020 3.000 0.3PO 7.600 465.000 5.800 3.G00 3.000 MAR C.640 0.024 0.32C 7.600 468.000 11.3CC 3.000 4.000 APR 0.41C 0.02P 0.6o0 8.000 364.000 S.500 10.000 5.500 MAY 0.040 0.024 0.380 9.50C 561.000 12.30C 10.000 17.000 JU N E O.035 0.060 1.090 8.1CC 440.0CC 7.6C0 JULY 20.000 21.500 0.180 0.055 0.690 8.CCC 375.000 6.7CC 7.5Cc 10.200 ALG 0.300 0.C71 0.e70 8. 2C C 490.000 6.500 15.000 24.0C0 SE P 0.190 0.028 0.390 8.000 23G.CCG 7.C00 25.000 OCT 0.160 20.000 0.021 0.340 e.200 '05.000 10.000 15.000 NOV 0.770 11.000 0.021 0.350 8.500 435.000 11.ELO IC.CCC GEC 0.560 5.000 0.022 0.62C e.COC 500.C00 10.9C0 3.0C0 N 4.000

-J     FEAN          0.362          0.C33             C . 5 9 t'       8.032           449.lt7           9.500           10.375        11.517 p       S. D.         0.264          C.010             0.288            0.294            72.135           1.9E9            7.234         8.366 MEDIAN        C.300          C.026             C.620            6.000           465.000         10.000            IC.CCC        11.0C0 LOWEST        0.035          0.020             0.320             7.et0          330.0C0           5.70G            3.CCG          3.000 C       h!GhEST       0.770          0.071             1.C90            9. 5 t' c       sel.CCO         12.300            25.000        24.000 CO NO TE . -1.CLD'S ARE MISSING VALUES
                     %. a y: a       -

FULL FACILFIAL ANs Y515 CF VARIANCF

                                                            '       I I b       #         "#          0        I #  '

Table 1.1-2 (Continued) f*- A l k A L I Nili PG/L A$ CACC3 1976 FAGE 10 FlaNT EFFECT ASLVF BELCW STallONS x-1 AND 8-1 $1AIICN$ Y-2 AND C-4 LEPTH EFFEC 1 OLPTH EFFECT c0TTO* 10F 2CTICM TCP JAN 162.000 F-1 165.000 x-1  ;;_f !. 165.C00 Y-2 164.000 Y-2 176.000 6-1 Iti.CCC e-1 .? / 170.0C0 C-4 166.0 00 C-4 FEb 170.000 x-1 173.000 X-1 27 175.0C0 Y-2 171.CCC Y-2 192.0C0 L-1 102.C00 b-1 4

  • c 170.000 0-4 173.000 C-4 MAR 162.000 x-1 167.000 x-1 'Ji!? d Ic9.00G Y-2 167.0CC Y-2 167.000 B-1 156.000 B-1 gi!"lL.~ 165.C00 C-4 16*.000 C-4 APR 119.000 x-1 117.000 x-1 4 4 v,,4 115.000 Y-2 114.0C0 Y-2 94.000 B-1 90.000 b-1 '*""' lin.COC C-4 106.000 C-4 MAY 131.000 X-1 129.G00 x-1 E
  • Ek* 132.0C0 Y-2 134.C00 (-2 J L'N 122.000 t-1 124.000 X-1 12*.000 o-1 63'*# 125.000 C-4 124.00 3 C-4 I?!.000 x-1 124.000 Y-2 124.000 T-2 120.000 b-1 11o.000 s-1 ,, 3 - 120.0C0 C-* 122.0C0 C-4 JLL 122.000 x-1 120.0C0 x-1 P^~'- 113.000 Y-2 121.000 Y-2 101.000 B-1 100.000 3-1 $bE + 111.000 C-4 103.CCO C-4 AUG  !!2.000 x-1 139.000 X-1 EJ9 144.000 Y-2 153.00C Y-2 152.000 b-1 151.000 E-1 g-; ;f'C1, b;i 146.000 C-4 140.000 C-4 SEP 99.000 X-1 99.wCO x-1 96.000 Y-2 95.000 Y-2 l'5.000 b-1 112.000 E-1 73_3 105.0C0 C-4 103.C CC C-4 f CC1 134.000 x-1 119.C00 x -1 ' " -

124.000 Y-2 131.000 Y-2 y 13's . C n D B-1 135.000 0-1 (j'fl

                                                                                       }          g, c 135.CCC  C-4           139.0C0 C-4
        -      NOV              119.00C x-1                128.000 x-1                 cs ,cx-1              139.C00  Y-2           136.0C0 Y-2 T                       130.000 B-1                131.000 b-1                                       133.000  C-4           130.000 C-4 DEC              142.000 x-1                142.000 x-1                    md))O L                  139.000  Y-2           142.CCC Y-2 142.000 B-1                143.000 B-1                 f^ 4142               140.0C0  C-4           134.000 C-4 PLANT      IOTAL                   6493.000                                    ,
                                                                                                       !                     $530.000 AVEHAGE                    135.271                                      ,;3.g                           136.042 BCT10M             "                                                    TEF DEPIH         ICIAL                   6*C9.000                                                              (515.000 AVERAGE                  135.583                                                               135.729 s

ANCVA pgj SOURCE DF SUM CF $CUAPES 51116.2813 FEAN SCLARE 4646.9347 F-STAT 71.1321**

          \           NONTH                              11.

d PLAN 1 1. 14.2604 14.2604 0.21e3 C2% MONTH x PLANT 11. 5*4.e646 40.5331 C.75b2 DEPlH 1. 0.5104 0.51C4 0.0078 MCNTH x LtPIb 11. 136.1140 12.3741 0.1694 (7) 1.26C4 1.2604 0.0193 PLANT X D E P i t: 1. C) ERROR 59. 3e54.3646 65.32E2 C1) TOTAL 05. 5see7.e563

  • SIGNIF IC ANT ( 95 % CCNF IDE NCE LEVEL I
                                                              ** HjGHLY SIGNIFICANT ( 99 ? C CN F lt.f NC E LEVEL 1 l

m 197E FACE 9

                                                       + 'lL L F Af l CR I A L ANALYSIS CF VAh'Abit Table 1.1-2                                 1 0 *.'SSING VALUE5 HAVE BEEN L5 TIN.*Tt2 I P-ALKAL'NITY PG/L At CACO 3 PLANT EFFECT ABOVE                                                              gEtow S T A T I CN S X - 1 ANO e-1                                        STATIONS Y-2 AND C-4 CEPTH EFFELT                                                       CEPTH E F F t r. T BOT 10M                         TCP                                  60TTOM                      10F JAN              C.0      X-1                  0.0      X-1                            0.0    Y-2                0.0    Y-2 C.0      B-1                  0.0      B-1                            0.0   C-4                 0.9    C-4 FEB              0.0      X-1                  0.0      X-1                            0.0    Y-2                0.0    Y-2 0.0      B-1                  0.0      0-1                            0.0    C-4                0.0    C-4 MAR              0.C      X-1                  0.0      X-1                                   Y-2                C.O C.0                              Y-2 0.G      t-1                  0.0      E-1                            L.0   C-4                 0.C    C-4 APR              G.C      X-1                  0.0      X-1                            0.0    Y-2                C.0 Y-2 O.0      6-1                  0.0      B-1                            C.0    C-4                0.C    C-4    .

MAY 2.000 X-1 9.000 X-1 0.0 Y -2 t.000 Y-2 - 0.0 B-1 0.G B-1 0.0 C-4 0.0 C-4 J L' N 0.0 X-1 0.0 JUL c.0 0.0 B-1 X-1 0.0 0.0 X-1 B-1 X-1 3.000 0.0 0.C Y-2 C-4 Y-2 C.L 0.0 0.0 Y-2 C-4 ['0"*"' Y-2 ELEZIES 0.0 e-1 0.0 B-1 0.0 C-4 0.0 C-4 - AUG C.0 X-1 0.0 X-1 0.0 Y-2 0.0 Y-4 p-ac. 0.0 b-1 0.C B-1 0.0 0-4 C.C C-4 7 SEP 0.0 X-1 0.0 X-1 C.G Y-2 [g}7y,,5 0.0 Y-2 F* 0.0 B-1 0.0 B-1 0.C C -4 0.0 0 -4 b OCT 0.0 X-1 0.0 X-1 0.0 Y-2 0.0 Y-2 [4 d racai?r1 O.0 B-1 0.0 b-1 0.G C-4 0.C C-4 ~~F;g, NOV 0.0 X-1 2.00C X-1 0.0 Y-2 0.0 4-2 [,,,,j-0.0 0-1 0.0 E-1 0.0 C-4 0.0 C-4 OEC 0.0 X-1 0.0 X-1 0.0 Y-2 C.0 Y-2 0.0 0-1 0.0 6-1 0.C C-4 0.0 C-4 are.,$j tv- c. a FLANT TCTAL 13.000 P.0C0 LSIl 05 AVERAGE G.271 C.167 00TTOM TCP N OEPTH TCTAL 5.000 16.000 -

~%d                              AVERAGE                         0.104                                                         0.133 I
                                                                                                                                             ~

ANCva O CJD SOURCE CF SUP CF SCUARES PEAN SCUARE F-STAT MCNTH 11. 29.0313 2.o392 2.4671*

   )           PLANT                                1.                      0.2604           0.26G4              0.2434 MCNTH X PLANT                       11.                      5.f646           0.5331              0.4924 OEPTH                                1.                      1.2604           1.2604              1.17?2 FCNTH X CLFTH                       11.                     16.3646           1.6695              1.56C7 PLANT X CEPTH                        1.                      G.5104           0.5104              0.4771 EPFCR                              59,                      63.1146           1.Ot97 ICIAL                              95.                    116.406T
  • SIGNIFICANT I 45 % CC fJ I CF NC E LEVEL I
                                                        ** H!fHLY !!CNIFICANT I c4 7 C LNF I CE NCf Lt%EL )

FULL FACICRIAL ANALYSIS CF VARIANCE (15 Fl5 SING V A LUE 5 HAVL bEEN ESil"ATED 1 Taole 1.1-2 (Continued) 1CTAL 01550LVFC PHOSPHCRUS WG/L F gg7g pggg gy PLANT EFFEC 1 ABOvt EEL 0n Sial 10NS x-1 AND c-1 STA11CNS Y-2 AND C-4 DEPTH LFFECT CIPTH tFrtLT t011CM TCP P01TCM TCP JAN 0 16G x-1 0.13C A-1 0.150 Y-2 0.115 Y-2 C.154 b-1 0.200 P-1 0.180 C-4 C.154 C-4 FLc 0.140 x-1 0.110 x-1 C.14C Y-2 C.130 V-2 C.140 E-1 0.150 3-1 0.14G C-4 C.140 C-4 MAR 0.120 x-1 e.120 x-1 0.164 Y-2 0.110 Y-2 C.117 E-1 0.120 B-1 0.119 C-4 0.117 C -4 APR C.090 T-1 0.080 x-1 0.000 Y-2 0.CSO Y-2 2.C70 E-1 C.C70 P-1 0.070 C-4 C.0t0 C-4 PAY 0.024 x-1 0. Liv x-1 0.01o Y-2 0.021 Y-1 v.026 6-1 0.028 B-1 0.024 C-4 C . C 2 2 C -4 JUN C.080 A-1 0.CR0 x-1 0.090 Y-2 0.11C Y-2 0.100 B-1 0.090 0-1 0.Gdo C-4 c.C90 C-4 JUL C.190 x-1 v.170 x-1 0.150 Y-2 0.16G Y-2 0.120 b-1 0.120 b-1 0.140 C-4 C.140 C-4 AUG G.100 x-1 0.100 x-1 0.11G Y-2 0.120 Y-2 0.120 0-1 0.140 P-1 0.120 C-4 C.12C C-4 SE P 0.110 x-1 0.11C x-1 0.100 Y-2 0.100 Y-2 g C.13C B-1 0.130 b-1 0.120 C-4 0.13G C-4 y OCT 0.000 X-1 0.060 x-1 0.603 0.070 Y-2 C-4 C.060 0.07C Y-2 C-4 SA 3"$ i 0.076 6-1 0.C80 b-1

 $        NCV               0.101 X-1               0.C93 x-1                            0.148 Y-2               0.1C2    Y-2                        %
                                                                                                                                                       %g 0.100 B-1                0.109 0-1                            0.102 C-4               0.101    0-4                    (2pw 0.100 Y-2               0.110    Y-2                     '*'

CEC 0.100 X-1 0.100 x-1 C.110 E-1 0.120 B-1 0.11C C-4 C.120 C-4 [} PLANI TOTAL 5.G49 5.658 AVERAGE 0.105 0.!!8 BLITCM TCP CtPTH TCit- S.637 5.071 $ 'U% 0.117 C.106 D'Y AVERAGE C:1'!& ANCVA EDZg C7\ SCLRCE C F SUM CF SQUARE 5 MEAN SCUAkt 0.011C F-5 TAT 2.54108

                                                                                                                                    <hI      '

MCNTH 11. 0.1210 PLANT 1. 0.0039 0.0034 C.9094 ' (;) 0.0C32 0.7458 MONTH X PLANT 11. 0.C348 LFP1H 1. O.CG33 0.0031 0.7e54 CZ) PCNTs x DEPIH 11. c.C302 0.0027 0.e466 j, 0.0035 0.0035 0.82P1 -'%%;- PLANT x CEPTh 1. (DRCR 44 0.1668 0.0042 -

                                                                                                                                  ~

101AL LG. 0.3635 .

  • SIGNIFICANT t 95 % CC NF ICENCF LEVEL 1
                                                    ** HIGHLY SIGNIFICANT ( 44 t CONFIDENCE LEVEL 1

FULL FALICRIAL ANALYSIS CF VAQlANCE I O P1551NG VALUES HAVE E t E N E ST l" AT E D ) Table 1.1-2 ', Con t in ued ) O!SSCLVE0 CRTHCPHC5PHATE PbCRPbCRUS MG/L P 1978 PAGE 11 PLAN 1 EFFECT ABCVt BELOW STATICN5 x-1 ANC e-1 51A110NS y-2 AND C-4 CEP1H EFFLCT CEPTH EFFECT BOTTOM TOP JAN 6CTICP TCP 0.140 X-1 0.120 X-1 0.110 Y-2 0.140 B-1 0.150 Y-2 0.140 B-1 C.150 C-4 0.11C C-4 FEE C.0E0 X-1 0.000 x-1 C.100 Y-2 0.10G Y-2 0.100 E-1 0.110 B-1 0.100 C-4 MAR C.07G X-1 0.100 C-4 0.110 X-1 0.09C Y-2 0.100 Y-2 0.100 e-1 0.100 B-1 0.070 C-4 A PR O.060 X-1 0.CSC C-4 0.040 x-1 0.050 Y-2 0.060 Y-2 0.G4C E-1 0.C50 b-1 0.050 C-4 PAY 0.009 x-1 G.050 C-4 0.001 X-1 0.004 Y-2 0.005 Y-2 L.009 B-1 0.013 e-1 0.006 C-4 JUN 0.070 X-1 0.005 C-4 0.07C x-1 0.Get Y-2 C.090 Y-2 C.090 2-1 0.0e0 b-1 0.090 C-6 JUL 0.090 C-4 u. 0.140 X-1 0.140 X-1 0.110 Y-2 G.140 Y-2 0.090 B-1 0.09G E-1 C.100 C-4 0.090 C-4 AUG 0.090 X-1 0.090 X-1 0.100 Y-2 0.080 Y-2 0.07C B-1 0.C70 B-1 0.07C C-4 0.07C C-4 F StP G.070 X-1 0.070 x-1 EE# $33 0.0F0 Y-2 C.070 Y-2 ($ 0*TH 7 e 0.100 B-1 0.100 b-1 0.C 90 C -4 C.070 C-4 r-- _i

  • OCT 0.020 x-1 0.010 x-1 0.02C Y-2 0.020 4-2 0.020 b-1 0.030 E-1 0.010 C-4 G.0 30 C-4 NOV 0.060 X-1 0.03C X-1 0.060 Y-2 0.0 60 Y-2 0.080 B-1 0.060 B-1 C.060 C-4 0.070 C-4 m'>
                                                                                                                                               ^

OEC 0.060 2-1 0.080 X-1 0.08G Y-2 0.100 B-1 0.0ec e-1 0.090 C-4 0.010 Y-2 ,g gg$ 0.0e0 C-4 4c%: 2 PLANT TOTAL 3.602 3.56G AVERAGE 0.075 0.075 **"* POTTOM 1CP OEPTP TCIAL 3.578 3.6C4 AVERAGE C.C75 0.075 __ IEIS ANCVA IN) SCURCE L. F SUM OF SCUARES PEAN SCUARE F-51A1 MGNTH 11. 0.1132 0.0103 49.2125** (;g PLANI 1. C.0000 0.000C 0.0240 ,,,r e--g PONTH X PLANT 11. 0.0008 0.0001 0.3352 -- DEPTH 1. C.0000 0.000G C.0335 C3 rCNTH x GFPlH 11. 0.0008 c.0001 0.3274 si) PLANT X DEPTH 1. C.0000 0.00C0 0.1444 __. EkRCR 54 0.0124 0.0002 TOTAL 95. 0.1278

                                                      , SIGNnFiraNT     ( 95 t CCU I CE NCE LEVEL I
                                                    ** HisHLY SIGNIFICANT ( 94 Y CCNFIDFNCF LEVEL I

FULL FACICEIAL ANALYSIS CF VARIANCE 4 0 MI551NG VALLES FAVE SEEN ESTIMATEC 1 Table 1.1-2 (continued) NCNFILTERABLL kE51DUE MG/L 1978 FAGE 14 PLANT EFFECT AfDVE PELCW STA1]ONS x-1 AND B-1 STATICNS Y-2 AND C -4 LFP1F SFFCCI CEPTH EFFECT eOTTUM TOP LC11CM ICP JAN 2.400 X-1 3.t00 X-1 3.8C0 Y-2 1.803 Y-2 22.e00 P-1 4.100 B-1 2.600 C-4 3.2C0 C-4 FEb 12.000 F-1 6.4C0 X-1 6.6CO Y-2 5.2C0 Y-2 7.800 B-1 6.000 e-1 6.8CC C-4 5.900 C-4 MAR 2.80v X-1 3.600 X-1 2.200 Y-2 2.400 Y-2 2.200 E-1 2.40C E-1 2.000 C-4 1.8 00 C-4 APR 12 C00 x-1 13.003 X-1 21.000 Y-2 20.0C0 Y-2 36.000 b-1 24.CCO b-1 25.000 C-4 23.000 C-4 MAY $9.000 X-1 24.00c x-1 40.000 Y-2 29.000 Y-2 26.000 P-1 ;6.000 B-1 33.000 C-4 24.000 C -4 JUN 49.000 x-1 39.000 X-1 49.000 Y-2 36.0C0 Y-2 5%.000 5-1 4S.000 o-1 49.00C C-4 32.000 C-6 JUL 24.000 x-1 25.0G0 x-1 35.000 Y-2 25.000 v-2 49.000 6-1 39.000 9-1 44.0C0 C-4 42.000 C-4 AUG 35.000 x-1 32.000 X-1 39.000 Y-2 33.0C0 Y-2 - 60.000 S-1 42.000 b-1 31.000 C-4 26.000 C-* g,.yf g StP 34.000 x-1 91.000 x-1 57.00G Y-2 *4.000 Y-2 - - 240.030 6-1 49.000 b-1 90.000 C-4 6$,C00 C-4 Ttf{,j r GLT 4M.LCC y-1 24.C00 1-1 35.000 Y-2 2 7 . 0 C.) Y-2 4* g 30.000 e-1 16.000 P-1 22.000 C -4 21.000 C-4 waq$1

  • NOV lo.000 X-1 16.000 X-1 20.000 Y-2 19.00C Y-2 U 20.000 b-1 18.0C0 3-1 17.000 C-4 16.0 30 C-4 (N Ott 4.000 x-1 4.000 x-1 8.0CC Y-2 3.100 Y-2 4.000 B-1 3.000 6-1 3.000 C-4 4.000 C-4 gps 3fES PLANT 1CTAL 1470.000 1150.20C ri:21d
  • AVERAGE 30.625 23.963 9* ** , ,
                                                                                                                                                 /
                                                                                                                                                   "#I h

EOTTCM 10P DEPie 101AL 1493.800 1126.*00 AVERAGE 31.121 23.467 ... _ ANCVA ph)*

                                                                                                                                                       ~

SCUeCE DF SUM OF 50 LARES MEAN SQUALE F-11A1 - MONTH 11. 52491.8612 4771.907* 11.26(4** 4 PLANT 1. Iv65.3338 1065.3338 2.5152 5 6M2) g

   '*d          MONTH X PLAN 1                   11.               4722.6112           429.3283                  1.0136                                      407 (3N           DEP1H                             1.               1406.0704          1406.070%                  3.3196                                      ]ggy%,[

F.O N i h X CtPlh 11. 166G.1546 150.9595 0.3564 PLANI X DLPIH 1. 103.7504 103.7504 C.2449

     )          EnkUR                            Av.              ?4990.0546           423.5602 NI)           TOTAL                            95.              86440.2362 PA)                                                    ,1CN3FICANT     ( 95 T CONFIDENCE LEVEL )
                                                     ** HILHLY SIGNIFICANT I 09
  • C ON F I DE N #.E LEVEL )

FULL FACTORIAL ANALYS13 OF VARIANCE Table 1.1-2 (Continued) 0 ul551NG VALUE S HAVE ELEN f.5TIMATED I FILTERAELE RESICUE MG/L 1978 PAGE 13 PLANT EFFECT A80bE BEL 0m STAllCNS x-1 ANO h-1 5TATIONS Y-2 AND C-4 CEPTH FFFECT DEPTH EFFECT BOTTOM TCP BOTT0M TOP JAN 290.000 x-1 280.000 x-1 280.000 Y-2 28G.000 Y-2 30C.000 B-1 320.000 0-1 290.000 C-4 300.000 C-4 FEB 330.000 x-1 300.000 x-1 300.000 Y-2 340.000 Y-2 350.000 B-1 350.000 B-1 30s.000 C-4 300.CCO C-4 MAR 250.000 X-1 270.000 x-1 260.000 Y-2 260.GCO Y-2 260.000 b-1 270.000 B-1 260.000 C-4 240.000 C-4 APR 250.000 x-1 250.00C x-1 250.000 Y-2 250.000 Y-2 200.000 0-1 190.000 e-i 2 0.000 C-4 230.000 C-4 MAY 310.000 x-1 310.000 x-1 340.000 Y-2 320.000 Y-2 310.000 B-1 330.000 6-1 300.000 C-4 300.000 0-4 J UN 330.000 X-1 320.000 X-1 320.00G Y-2 320.000 Y-2 310.000 B-1 310.00C 8-1 350.000 C-4 32G.000 C-4 JUL 240.000 X-1 240.000 x-1 230.000 Y-2 240.000 Y-2 210.000 8-1 210.000 B-1 230.000 C-4 190.000 C-4 AUG 250.000 X-1 240.000 x-1 200.000 Y-2 270.000 Y-2 + -5 260.000 B-1 250.000 3-1 250.000 C-4 260.000 C-4 f SEP 200.000 X-1 190.000 X-1 190.000 Y-2 190.000 Y-2 7 220.000 B-1 230.000 B-1 220.000 C-4 220.00v C-4 _ums-N OCT 210.000 x-1 220.0C0 x-1 220.000 Y* 220.000 Y-2 a 220.000 B-1 210.000 B-1 220.000 C-4 220.C00 C-4 ff"3;+*,w NOV 230.000 x-1 210.000 x-1 220.000 Y-2 230.000 Y-2 m. 5 220.000 C-4 210.000 B-1 210.000 8-1 210.000 C-4 DEC 240.000 X-1 220.000 x-1 250.000 Y-2 250.000 Y-2 * '$ 240.000 b-1 250.000 C-1 240.000 C-4 240.000 C-4 UM FLANT TOTAL 12390.000 12340.000 ..

                                                                                                                                          ,,3 AVERAGE               258.125                                                         257.083                    ;,,}${q-       -

BOTTCM TOP waw [NJ OEPTH TOTAL 12370.C00 12360.000

% j                             AVERAGE                257.708                                                    257.500 ANCVA                                                               O C:D sg)                    SOURCE                  OF            SUM OF SCUARES      MEAN SOUARE         F-ST AT                     'c.7      ,es PCNTH                         11.             162411.4583      14764.67E0            69.6746**

kJN PLANT 1. 26.0417 26.0417 0.0676  ;~AI'~. MCNTH X PLANI 11. 2535.4583 230.5871 C.7758 OEPTH 1. 1.0417 1.0417 0.0035 . MCNTH X CEPTH 11. 611.4583 55.5e71 C.le70 pg.;,7 3 PLANT x DEPTH 1. 26.0417 26.c417 0.0876 ERRCR 59. I?536.45t3 297.2281 TCTAL v5. 163148.95E3

  • SIGNIFICANT  ! 95 t CONF IDE NCE LEVEL I
                                                  ** HIGHLY SIGNIFICANT 4 99 % CONFIDENCE LEVEL I

FULL FAC1CRIAL ANALYSIS CF VARIANCE ( 0 MISSING VALUES PAVE BtEN ESTIMATEC 1 Table 1.1-2 (Continued) NITR11E NilR CGE N MC/L N 197c PAGE 16 PLANT EFFECT A3CVE CELCS STATIONS x-1 AND b-1 51AllCNS Y-2 AND C-' DEF1H EFFEC 1 CEPTH EFFECT BOTT0" 10F ED(1CM TCF JAN C.021 X-1 0.011 X-1 C.024 Y-2 0.021 Y-2 0.014 L-1 0.020 E-1 0.024 C-4 0.024 C-* FF6 0.013 X-1 0.013 x-1 0.C20 Y-2 C.Cl3 V-2 L.12C B-1 0.013 P-1 0.013 C-4 0.013 C-4 MAR 0.01o X-1 0.016 X-1 0.024 Y-2 0.024 Y-2 0.018 P-1 0.019 B-1 C.018 C-4 C.02 3 C-4 APk O.033 X-1 0.032 X-1 C.02o Y-2 0.030 Y-2 0.020 b-1 0.019 B-1 0.026 C-4 0.C 26 C

  • MAY C.024 X-1 0.024 X-1 0.0/4 Y-2 C.C22 Y-2 0.022 P-1 0.022 b-1 0.022 C-4 C.022 C-4 F"*""*g1 JUN G .0 60 x-1 0.070 X-1 0.060 Y-2 0.06 0 Y-t i C.050 B-1 0.040 B-1 0.050 C-4 0.06C C-* J~*k P JUL U.62C X-1 0.059 X-1 0.055 Y-2 0.0 5 7 Y-2 _

O.042 e-1 0.040 6-1 0.C 5 2 C -4 C.C42 C-4 AL G C.740 X-1 0.C72 X-1 0.071 Y-2 0.060 Y-2 f(%" jsJ la,ggg C.076 6-1 0.C70 B-1 0.068 C-4 0.0t8 C-4 E_- , , SEP 0.0?0 X-1 0.025 X-1 0.028 Y-2 C.025 Y-2 0.043 E -1 0.040 8-1 0.038 C-4 0.038 C-4 CCT 0.020 X-1 0.020 X-1 0.C21 Y-2 0.u20 Y-2 7 0.022 B-1 0.022 B-1 0.C22 C-4 0.021 C-4 E- , H NCb 0.C21 X-1 0.019 X-1 0.021 Y-2 0.024 Y-2 b C.021 B-1 0.021 6-1 C.0<2 C-4 C.C21 C-4

   ^     DEC              0.C09    X-1               0.010  X-1                           0.022 Y-2                 0.023   Y-2 0.010 6 -1                 0.010  e-1                           0.011 C-4                 C.011   C-4 PLANT     YOTAL                     2.776                                                               1.512 AVERAGE                  u.05e                                                                0.031 EC11CM                                                           TOP f%

L:.j]5] LLPTH 1DTAL 2.e29 1.455 3  ?. 3, , tv6 R AGE C.059 0.030 Hy.y,# N C N AkCVA q'g CDs SUW CF SCUARES MEAN SQUARE F-ST A T

                                                                                                                                       ~
                                                                                                                                          ~_w'4 SCURCE                     O F
11. C.17el 0.0162 2.02814 "" Y 3 PCNTH C3 PLANT 1. C.C166 C.016o 2.ces2 Ni) MONih A FLANT 11. 0.0831 0.0076 0.9463 gbs OEP1H 1. 0.0196 0.0196 2.4496 MCNTH X CEPTH 11. 0.0615 0.0074 L.92S4 PLANT X DEPTH 1. 0.0156 0.0180 2.3365 ERRCR 59. 0.*709 0.0080 ICIAL 95. 0.S684
  • SIGNIFILAN1 ( 45 t CCNF10ENCE LEVEL )
                                                    ** HIGHLY SIC NIFIC ANI ( 44 T CONFIDENCE LEVEL I

Table 1 1-2 (Continued) FULL FACTCRIAL ANALYSIS OF VARIANCE 1 0 MISSING VALUES HAVE EEEN E STIM ale L 1 AMr0NIA NITROGEN MG/L h 1978 PAGE 15 PLANT EFFECT ABOVE eELOW STATICNS X-1 fNO B-1 S T AT IONS Y-2 AND C-4 DEPTH EFf:ri DEPTH EFFECT EOTTOW TCP POTTCM JAN TOP 0.120 X-1 0.600 X-1 0.61C Y-2 C.660 Y-2 0.740 6-1 0.810 B-1 0.7C0 C-4 0.660 C-4 FEB 0.780 X-1 0.e40 X-1 0.650 Y-2 0.940 Y-2 0.950 B-1 0.950 b-1 0.e40 C-4 0.9 60 C-4 MAR C.680 X-1 0.780 X-1 0.640 Y-2 0.6 00 Y-2 0.700 B-1 0.67G B-1 0.680 C-4 0.680 C-4 APR C.160 X-1 0.140 X-1 0.210 Y-2 0.230 Y-2 C.260 B-1 0.240 B-1 0.180 C-4 0.170 C-4 MAY C.060 X-1 0.040 x-1 0.040 ' ^ 0.040 Y-2 0.160 B-1 0.180 B-1 0.17~ ~

  • 0.100 C-4 JLM 0.280 X-1 0.490 X-1 0.03, Y. 0.240 Y-2 0.330 B-1 0.300 B-1 0.320 C-4 0.?00 C-4 JUL C.140 X-1 0.140 X-1 0.180 Y-2 0.160 Y-2 0.190 B-1 0.160 B-1 0.160 C-4 C.160 C-4 '

A UG 0.290 X-1 0.230 X-1 0.300 Y-2 0.230 Y-2 . f 0.460 6-1 0.440 S-1 0.400 C-4 0.400 C-4 H SEP O.270 X-1 0.2eo X-1 0.190 Y-2 0.!?C Y-2 b 0.350 B -1 0.3*C B-1 0.310 C-4 ' 001 0.320 X-1 0.28C X-1 0.160 Y-2 0.2 80 C-4 0.130 Y-2 [)E."# ""*' C.320 e-1 0.330 B-1 0.230 C-4 0.240 C-4 f?"**"1 NOV 0.320 X-1 0.120 X-1 0.770 Y-2 0.220 Y-2 0.400 b-1 0.460 e-1 0.350 C-4 0.44c C-4 DEC 0.700 X-1 0.670 X-1 0.5eo Y-2 0.590 Y-2 0.640 e-1 0.6E0 B-1 0.660 C-4 0.7 40 C-4 INIII'l PLANT TOTAL 20.370 12.465 AVERAGE 0.424 g 0.385 . BCTTCM TOP

                                                                                                                                      ~

OEPTH 'TAL 19.655 19.160 pgj AVERAGE 0.409 0.4C0 ,99 g3 N LYd.Q

 @                                                                       ANOVA C3                  50bkCE                   DF          SUF CF SQUARES       MEAN SCUARE         F-STAT MCNTH                         11.                 5.3715           0.48E3           66.0624**

PLANT 1. 0.0378 0.0378 5.1141* (JI MONTH X PLANT 11. 0.06*5 0.C062 0.8419 CT OEPTh 1. 0.0024 0.0G24 0.3120 1;et ??1 MCNTH X OLPTH 11. 0.0643 0.0058 C.7912 PLANT X OtPTH 1. 0.0005 0.0005 0.0713 ERRCR 59 0.4361 0.0G74 TGlAL 95. 5.9811

  • SIGNIFICANT t 95 7 CCNF10ENCE LEVEL l
                                                 ** HIGHLY SIGNIFICANT t 09 Y CUNF10ENCE LEVEL 1

sULL FACICRIAL AN ALY SIS LF VARIANCE ( 0 MI55]NG VALUES HAVE EEEN ESTIMATEC 3 Table 1.1-2 (Continued) FH 1978 PAGE IS PLANT EFFtCT ABCVF BELCp STATIONS X-1 ANC S-1 51A11CNS Y-2 ANC C-4 DLPin eft: CT CEpTb Er6ECT eciier TCe sciiG- iCP JAN 7.600 X-1 7.700 A-1 7.700 Y-2 7.tCC Y-2 7.6LC L -1 7.6C0 E-1 7.700 C-* 7.7C0 C-4 FEP 7.4CC x-1 7.400 X-1 7.600 Y-2 7.600 Y-2 7.e00 t'-l 7.oC0 t-1 7.50C C-4 1.2 00 C -4 MAR 7.400 X-1 7.40G X-1 7.600 (-2 7.600 Y-2 7.500 P-1 7.500 B-1 7.5CC C-4 7.4CC C-4 APR 3.500 x-1 e.000 X-1 8.00L Y-2 6.000 T-2 7.900 0-1 7.8CC B-1 S.000 C-4 7.900 C-4 MAY P.500 X-1  ?.100 X-1 6.500 Y-2 e.6CC Y-? t.300 5-1 e.3CC s-i e.400 C-4 2.4C0 C-4 JLN E.CCC X-1 e.JCO X-1 8.100 Y-2 e.3GG Y-2 8.100 E-1 8.000 E-1 6.100 C-4 S.1C0 C-4 g JUL 7.9C0 X-1 7.900 T-1 8.CCC Y-2 E.CCO Y-2 y me=r3

7. SCC C-4 2.ecC C-4 7.900 B-1 7.600 e-i ALG f.200 X-1 8.3C0 X-1 8.2CC Y-2  ?.400 Y-2 E.000 P-1 3.3CL b-1 8.200 C-4 E.100 C-4 SLP 7.600 X-1 7.700 X-1 E.CCC Y-2 8.100 Y-2 ss- ,)

7.700 6-1 7.700 9-1 7.800 C-4 7.8 00 C-4 r([ fern CCI c.200 X-1 8.3C0 X-1 8.2c0 Y-2 8.400 Y-2 g e.000 b-1 3.000 b-1  ?.100 C-4 8.2 00 C-4 EE Y NCV 8.500 X-1 3.700 X-1 8.50C Y-2 P.500 Y-2 ' h

  $                     8.300  B-1               d.3C0  6-1                              9.300   C-4               8.3C0  C-4                 'T!dT'#

DEC 2.000 X-1 d.000 X-1 8.0C0 Y-2 E.CCC Y-2 c 1

8. LOC B-1 e.CCC b-1 8.C00 0-4 e.000 C-4 PLANT TOTAL hel.400 364.100 AVERA'E 7.45e 8.002 ECTlcM 1Cv D'PTH TCTAL 382.600 303.400 AVERAGE 7.971 7.987 pgg$$

w1 IN) p. 8POVA L ,ye '%st *M1

  \

SCLRCE CF SUM CF SCUAalS VtAN SCUAPE F-51AT .-, " .- MONTH 11. 9.270e 0.8428 65.2756ee gym + CZ) PLANT 1. 0.0504 C.05C4 2.4557 MONTH X PLANT 11. O.1621 0.0147 0.6632 yg3 si) 0.CCt7 C.?sC6 (g j DEP1P 1. 0.0067 MENTH X EfPJH 11. 0.16CP C.0146 0.8566 PLANI X DEPIF 1. 0.C004 C.CC04 0.C244 um, 'A 59. 1.0071 0.0171 TOTAL st. IC.65e3

  • ElGNIflC+NT t 95 7 CPNFIDENCE LEVEL i
                                                ** tIGPLY ! !GP.l F I C AN T ( 90     CON F I CE NC E LEVEL )

Tabic 1.A-2 (Con t inue d ) FULL FACIL*lAl ANALY$15 '_F VARIANCE f 0 MiiSING VALUE S HAVE b t cN tSTIMATED I NITRATE NITUCGEN PC/L N g97g pagg g PLANT EFFECT A6LVF CELCh STATIONS X-1 AND e-1  ; tai!CNS Y-2 AND C-4 0;.PTH EFFELT CEPTh EFFECT BOTICM TCP FCTIOw JAN TCP 1.040 X-1 0.s20 X-1 1.G90 Y-2 1.ClG Y-2 1.01C E-1 1.050 B-1 1.le0 C-4 1.120 0-4 FEB 0.3PO X-1 0.470 X-1 0.360 Y-2 C.410 Y-2 0.310 B-1 0.390 E-1 0.410 C -4 0.3s0 C-4 MAR C.310 X-1 0.390 x-1 0.320 Y-2 0.300 Y-2 0.920 E-1 0.200 b-1 C.310 C-4 0.290 C-4 APR C.730 X-1 0.890 X-1 C.660 Y-2 0.77C Y-2 0.640 S-1 0.66C 9-1 0.620 C-4 0.62G C-4 MAY 0.390 X-1 0.260 X-1 0.3?O Y-2 1.370 Y-2 0.310 b-1 1.330 b-1 '.3tC C-4 C.150 C-4 JUN 1.020 X-1 1.070 X-1 1.J90 Y-2 1.260 Y-2 1.090 6-1 1.160 3-1 1.0ct C-4 1.050 C-4 JUL C.600 X-1 0.630 X-1 0.690 Y-2 0.62C Y-2 C.55C B-1 U.690 0-1 0.520 C-4 0.4e0 C-4 g AUG 0.820 X-1 0.820 X-1 C.870 Y-2 C.980 Y-2 C.700 E-1 0.75c E-1 0.P00 C-4 0.790 C-4 gyy.,,[l

 ,            SEP              O.380   X-1                0.350  x-1                         0.390 Y-2               0.4CG Y-2                   '=-

y C.38C b-1 0.36G 6-1 0.2EC C-4 0.? 60 C-4 CCI 0.420 X-1 0.320 X-1 0.34L Y-2

                                                                                                                                         -9 fr C.400 Y-2 O.310  b-1                0.310  b-1                         0.330 C-4               C.330 0-4          RCt*

NOV C.320 X-1 0.360 X-1 0.350 Y-2 C.520 Y-2 0.320 B-1 cf{,,,, 0.320 B-1 0.370 C-4 C.3 CC C-4 OEC 0.570 X-1 0.560 X-1 0.620 Y-2 0.640 Y-2 I"*' k O.570 6-1 0.540 B-1 C.560 C-4 r .5 60 ( -4 PLANT TOTAL 29.110 29.230 AytRAGE gypyy,, 0.606 0.609 -

                                                                                                                                            +,

BOTTOM TCP *"U3 CEPTH TCTAL 72.250 ?0.C90 AVERACF C.627 gr, . N q ANCVA ,%g C3 OF SCUARES SOURCE D F MEAN SCUAQE F-STAT woNTH 11. 6.2696 0.57Ce 19.27eC+. C:3 PLANT 1. 0.0001 0.00C1 C.0051 (70?dE{,} 43Z71 sg) MONTH X ptANT 11. 0.1036 0.0094 0.3105 ,J1

    'd              CSPTH                             1.                  0.0353           0.0353            1.1928                   d'h7* , '

PCNTH X DEPTH 11. 0.3961 0.0360 1.2100 PLANT X OEPTH 1. 0.0012 0.0012 0.C407 #I?' ERROR 59. l.74 *4 0.0296 a6 4 2&i TOTAL st. 8.5503

                                                           * !!GNIFICANT     ( 95 % CCFF1DENCE LEVEL I
                                                          ** HIGPLY SIGNIFICANT ( 4% Y CCNFIDtNCE LEVEL i

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                      -        1 1                   1 1 1                            1 1 1 1           C4
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F L' L L FACTCRIAL ANALYSIS OF VARIANCE Table 1.1-2 (Continued) t 0 MISSING VALUE S bAVE B E EN E STIMATE 0 I CONOUCTIVITY Uvn05/CM 1978 PACE 19 PLANT EFFECT AbOVE EELCw STAllCNS x-1 AND B-1 STATICNS Y-2 AND C-4 CEPTH EFFECT CEPTH EFFECT BOTTOM 10P JAN BOTTCM TOP 580.000 X-1 600.000 X-1 553.000 Y-2 552.C00 Y-2 461.000 b-1 395.000 b-1 409.000 C-4 FF6 420.000 C-4 480.000 X-1 500.000 X-1 465.000 Y-2 444.000 Y-2 500.000  ?-1 46P.000 B-1 484.000 C-4 MAR 478.000 X-1 469.000 C-4 676.000 X-1 468.000 Y-2 471.000 Y-2 482.000 P-1 464.0CC B-1 4'*.0C0 C-4 APR 462.000 C-4 366.000 X-1 386.0C0 X-1 364. ';O Y-2 300.000 B-1 364.000 /-2 286.000 B-1  ?'.J.000 C-4 3 5 0.00 0 C-4 MAY $49.000 X-1 549.000 X-1 Sci.000 Y-2 548.0C0 Y-2 537.000 6-1 500.000 B-1 JUN 430.000 X-1 536.000 C-4 55 0.000 C-4 450.000 X-1 440.000 Y-2 430.000 Y-2 430.000 b-1 420.000 B-1 430.000 C-4 430.0 0C C-4 JUL 385.000 X-1 375.000 X-1 375.000 Y-2 375.000 Y-2 325.000 B-1 320.000 B-1 355.C00 C-4 320.00C C-4 A OG 479.000 X-1 479.000 X-1 490.000 Y-2 500.000 Y-2 7 489.000 P-1 489.C00 B-1 490.000 C-4 500.000 C-4 H SEP 430.000 x-1 333.000 X-1 330.000 Y-2 323.0C0 Y-2 b 394.000 b-1 383.000 6-1 372.0C0 C-4 OCT 405.000 X-1 372.000 C-4 7'GCC[lf 405.000 X-1 405.00C Y-2 *14.000 Y-2 ##Ngag 421.000 E-1 419.000 B-1 419.000 C-4 4L3.000 C-4

                                                                                                                                       -A NOV               422.000  X-1            422.000      X-1                      439.000 Y-2 422.000  b-1 434.000    Y-2
  • J 422.000 8-1 441.000 C-4 439.000 C-4 M. U22 OEC 500.000 x-1 5C0.000 X-1 SCC.0CC 6-1 518.000 6-1 500.000 Y-2 484.000 Y-2 Id2C2 481.000 C-4 500.000. C-4 PLANT TOTAL 21346.000 21215.000 c:.,yg;g A VE R A GE 446.7Cf 441.979 lcy ECTTCM TOP DEPTH ' E'N F3[[

TO T A L 21403.000 21158.000 AVEoAGE 445.896 ' ".%'. 440.792 j =s N N ANOVA ;g SOURCE DF SUM CF SCUARES MEAN SQUARE F-ST=T . MCNTH 11. 349832.2813 31804.7528 CD PLANT 178.7604 26.1111**

1. 178 .7604 0 1460 i NI) MCNTH X PLANT 11. a554.e646 595.8968 0.4892 'J-si) DEPTH 1. 625.2604 625 2604 0.5133 MONTH x DEPTH 11, 2C39.Et46 185.4422 4-0.1522 -

PLANT x DEPTH ERROR 1. 59. 429.2004 71865.36*6 629.2604 0.3524 "k I 1218.0570 0dE222 10TAL 95. 431545.6562

  • SIGNIFICANT t 95 % (ONFIDENCE LEVEL 7
                                                      ** HIGHLY SIGNIFICANT t 99 t CONE 10E NCE EVEL I

GULL FACTCDIAL ANALYSIS CF VARJANCE ( 0 MI551NG VALUES FAVE SEEN tSitMATEG ) Table 1.1-2 (Continued) WATER TE*PEeATURE CE GA t E S Cc LSIUS 1976 PALE 22 PLANT EFFtCT AECv5 cELCW STAIIEN! x-1 ANC C-1 STATICNS Y-2 AND C-4 LEFTH EFFECT OEpTH EFFECT LGTTop TCP P.C T T C

  • TCP JAN G.C X-1 0.0 X-1 3.CCO Y-2 C.10C Y-2 C.4GL B-1 0.0 b-1 0.e00 C-4 C.400 C-4 FF9 0.0 X-1 0.0 *-1 3.CCC Y-2 1.000 Y-2 0.C e-1 0.0 b-1 0.C C-4 0.0 C-4 MAR 2.000 X-1 1.000 X-1 4.000 Y-2 4.CCG Y-i C.500 E-1 1.000 2-1  !.GLC C-4 0.5CG C-4 APk e.500 X-! 8.500 X-1 5.50u Y- 2 6.500 Y-2 7.500 b-1 7.0C0 B-1 6.000 C-4 7.500 C -4 P. A Y 17.000 X-1 17.000 Y-1 17.000 Y-2 21.CCG Y-2 17.000 P-1 17.200 t-1 17.CCC C-4 17.C 06 C-4 JbN 21.C00 x-1 21.500 )-1 21.500 Y-2 25.500 Y-2 22.000 B-1 22.000 5-1 22.000 C-4 22.000 C-*

JLL 20.0C0 X-1 20.200 x-1 20.200 Y-2 22.000 Y-2 20.500 B-1 20.700 E-1 20.100 C-4 20.500 C-4 A UG 23.500 X-1 23.500 X-1 L4.CCG Y-2 2 7. 5 00 Y-2 e4.500 6-1 2*.5CC B-1 24.500 C-4 24.00G C-4 SEP 19.500 X-1 19.500 X-1 20.000 Y-2 25.0C0 Y-2 ,wq 21.000 8-1 21.CCC B-1 20.000 C-4 21.000 C-4 ~"* n r 001 10.000 X-I 11.000 X-1 11.C00 Y-2 16.000 Y-2 gg, j g 11.000 e-1 11.000 e-i it.000 C-4 11.000 C -4 .e3 ,,, 8 NOV 3.000 X-1 3.500 A-1 5.CCC Y-2 13.CCC Y-2 ,i

    $                          4.500   E-1               5.G00  E-1                             5.0G0 C-4                     5.000   C-4 E_u     -

DLC 0.0 X-1 0.0 X-1 4.000 Y-2 3.000 Y-2 G.0 b-1 0.0 b-1 L.0 C-4 0.0 C-4 E"? ' ' PLANT TCTAL 5C8.300 561.3CG Ul## "4 AVEDAbE 10.590 11.694 dIh;@p 5 be 80TTOM TCP 3yRw CEPTH TCTAL 521.200 548.400 b- r' AVERAGF 10.958 11.425 ANCVA {S-u.N] ]

%sy                       SOURCE                    CF             SUM OF SLLARES        VEAN SCUARE                F-STAT                  g',y"" ;

PCNTH 11. 790e.2108 718.92e3 322.9242** N2[EJ PLANT 1. 25.2604 25.20C4 13.143C+* {';ci2 g PLhTH X PLANT 11. IP.3671 1.6697 0.7500

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 -*              DEPTP                              1.                   7.7C67             7.7067                   3.4616

(;) MCNih x LEPTH 11. 20.255E 1.8414 C.8271 F L * :.T X DLPTH 1. o.1004 L.1C04 2.7402 (' L

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 )               EERCR                             54                  131.3521             2.2263 TCTAL                             95.                6121.2533
  • SIGNIFICANT ( 95 t CC NF I DE NC E LEVEL )
                                                       ** HIGHLY SIGN;FICANT ( 99 T CCNFIntNCE LEVEL )

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Ff#9180#00d PRAIRIE ISLAND NUCLEAR GENERATING PLANT ENVIRONMENTAL MONITORING PROGRAM 1978 ANNUAL REPORT WATER TEMPERATURE AND FLOW (1.2) Prepared for Northern States Power Company Minneapolis, Minnesota DY L. W. Eberley Environmental and Regulatory Activities Department Northern States Power Company 1.2-1 2,7f ;

1.2 WATER TEMPERATURE AND FLOW l.2.1 INTRODUCTIr'v .*.ND METHODS This report presents daily maximum, minimum, and average water temperatures recorded by Resistance Temperature Devices (RTD's) in the vicinity of the Prairie Island Nuclear Generating Plant (PINGP). River inlet temperature is recorded at RTD1 and site discharge temperature at RTD2 ( Fig ure 1.2-1). The RTD temperature sensors are spaced vertically at two-foot (0.6 m) intervals, with readings averaged by the PINGP computer and recorded hourly. In addition, daily average site discharge flow (blowdown), measured by PINGP personnel, and daily Mississippi River flow, measured at U. S. Lock and Dam 3 are presented. Daily average blowdown includes additional water appropriated to compensate for cooling tower evaporation loss (approximately 38 efs when all cooling towers and fans are operating). 1.2.2 RESULTS AND DISCUSSION Daily maximum, minimum, and average river inlet and site discharge temperature data are presented in Table 1.2-1 by month. Daily average river inlet temperatures ranged from 32.3 F (0.2 C) to 81.4 F (27.5 C) during January and August, respectively. Daily average site discharge temperatures ranged from 34.6 F (1.4 C) during January to 85.5 F (29.7 C) in August. Generally, daily average site discharge tempera-ture exceeded daily average river inlet temperature by three to five degrees Fahrenheit. Eberley (1977), however, indicated that under certain conditions, daily average river inlet temperature may equal or exceed daily average site discharge temperature due to recirculation of some of the heated water discharge. 1.2-3 276 103

Table 1.2-2 indicates mean daily and monthly site discharge flow (blowdown) recorded at PINGP during 1978. Daily mean blowdown ranged from 156 to 1,023 cfs. Mean nonthly blow-down ranged from 185 to 634 cfs. Daily Mississippi River discharge flow rates (Table 1.2-3) were somewhat atypical in 1978 due to heavy rains in late June and early July. One result of these heavy rains and the resultant cooler river temperatures was reduced plant intake flows. PINGP withdrew an annual average of approximately two percent of the Mississippi Piver flow (Table 1.2-4). Monthly withdrawal flows ranged from 0.5 to 3.7 percent in April and August, respectively. 1.2.3 LITERATURE CITED Eberley, L. W. 1977. Water Temperature and Flow In: Northern States Power Company Prairie Island Environmental Monitoring and Ecological Studies Program, 1977 Annual Report, Volume I, Minnea-polis, MN. 1.2-4

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Table 1.2-1. Maximum, M in imum , and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during January 1978. OPE R A TING River V AT ER WLE T T EvP Site DISCH A RGE T Ev P DAT HOURS _E, _ _ ._ _ _ ._MIN_ . A v r,MAX F O Rl _ O_ _ P. _ H_ - R_ - 5 MIN MAX Av3 FOR OP HR5

           ,             24             32.3                       32.6                 32.5 24 l

a_______ _ __ _33. 3 _ -. 36.0 l 3 '. 6 2 32.3 I 32.5 i 32.4 33.9 2T [ 36,9 I 35.0 3 32.3 } 32.4 32.3 34.0 36.3 l { 1 35.1 [---- 24 32T3 72TF ~~

              -                                      [                          i~   ~~32.~4         I~ ~ 35.0                     36.4     1       35.5 24            32.3                        32.6                 32.4 c
           '                                                                    l                    l      34.0                   36.5     1       35.9
       ~e       l.- .- 2 4              32.5                       32.7                 32.6         I       33.5                  38.2     1       36.7 J        24            32T7 --       j- T2.7                    j       32.7                35.2 37.2      l      36.0

[~ 7 4 32.1' ' g 32.7 32.4 34.9 36.6 i 36.0 24 31.9 33.0 32.3 34.7 9 l 36.5 }~ 35._5 10 } 2T 32.9 l 33.0 ' 32.9 33.2 36.5 34_.9 24 32.8 }' 33.0 32.9 34.4 33 { 37.7 I 36.0 24 e 12 [ 32T5 32.9 32.9 35.6 37.5 36.3 33 f f_ 32.8 33.0 32.9 35.8 37.1 36.5 Y ~ ~~ 2C 32.3 33TO~ ~{ 32.9 36.1 14 l 36.9 36.5 24 32T9 33.0 32.9 36.0 I

       -15                                            ;                          l                   [                             37.5             36.5 t       24             32TS                       33.0                  32.9                35.7 16     1 i

37.6 36.6 37 J- 24 32.8 ' 33.0 l 32.9 35.4 1 36.7 36.1 32 7

         -                74                                      33.0                  32T9                36.0             i     37.9             36.6

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                                  -~ ~- 3 2 T9 -      i           3 3TO ~ ~ ~          32T9                 35.9                   37.2             36.3 24            ~32.9                       33.0                                      35.6                   36.8 20                                           i 31 9                                                         36.2 24             32.9                       33.0                 32.9                 35.8 l                                                                            3S.1             36.5 N                      24                                        32.9
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 -.-->   25                                          }            32.9                 32.9                 34.9                   37.4             36.3 o       3              24             32.8                       33.0            l    32.9                 34.6             e     36.6             35.8 Ch                     24             32.8                       32.9                 32.9                 35.4 27     [                                                           ~~I~                                                   37.6             36.5
         ,8
         .       I     24              32.9                       33 0           I     32.9                - - - - -36.4           30.5            3_7, 7
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Table 1.2-1 (Continued). Maximum, Minimum, and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during April 1978. OPE R A TIN G RIVER M AT E R INLE T T EMP. SITE

  • A T E R DISCHA RGE T EMP DATE H MAX MIN
           ._         , , _          L _-    ]IN .,                      A VG FOR OP MP5      l                   MAX         AVG f OR OP HR5 1              24            41.6         45.7               43.2              41.1           44.7         l    43.1 2              24            38.7         43.5               40.4               38.4          42.7         f    39.9 3              24            38.7         41.4               39.6               38.6          42.3        i     40.1 4              24           40.7          43.3               41.8              40.2           43.8              41.8
                                                      ~

I s 24 40.8 43.1 ___ j 41.7 40.6 42.8 41.7 6 24 40.8 45.7 j 43.2 41.4 46.0 43.5 7 24 44.6 45.9 45.2 42.9 45.6 44.1 8 24 43.5 45.1 44.1 41.8 43.9 42.9 9 24 43.2 44.1' 43.5 41.3 43.2 42.3 10 24 43.3 44.9 4[0 41.2 44.5 42.5 11 24 44.1 44.5 42.3 42.0 44.3 42.8 12 24 44.1 45.3 44.8 42.4 46.6 43.9 g 13 24 43.2 44.6 43.9 41.6 43.5 42.5 N 14 24 44.1 45.9 45.0 42.4 44.5 43.5 e I 15 24 45.9 47.5 46.6 44.2 46.6 45.3 o 16 24 46.7 48.5 47.6 44.9 47.8 46.3 17 24 47.9 48.8 48.2 46.0 47.7 47.0 _ is 24 46.4 48.0 47.1 } 44.5 47.3 45.6 19 24 45.4 46.4 45.9 44.3 45.9 44.9 _ 20 __ 24 44.9 { 45.4 45.1 43.7 45.6 44.7 _ _ 21 24 _ 44.6 48.1 46.1 43.4 48.2 45.9 22 24 46.8 49.7 48.2 45.5 50.5 { 47.7 N 23 24 48.1 49.1 48.5 46.7 I 48.4 47.5 N 24 24 47.9 48.6 48.1 46.7 49.6 48.1 O 52.2 49.1 46.5 53.9 50.0 25 { 24 47.2 __ { i 26 l

                   +

24 50.1 55.0 52.2 - 49.9 55.8 J

                                                                                                                          +

52.1 Q 27 24 52.0 56.2 54.0 51.1 57.7 l 52.7 o 28 24 53.5 57.0 55.3 53.1 58.3 55.7 29 24 55.2 57.0 56.1 54.5 57.3 55.8 30 23 34.0 57 4 SLS 52.6 58.0 55.0 31 } t

Table 1.2-1 (Continued) . Maximum, Minimum, and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during May 1978. O PE R ATIN G RIVER W ATE R INLE T T EMP. SITE DiscH ARGE TEMP DATE HOURS MIN MAX AVG FOR OP HR5 MIN MAX AVG FOR OP HRS

                                                                                                                                                           =_

1 __2.4 _ ___ __52.9_ _ s L2- 5 5. .+ _ _. - _3L7_ _ _ .

                                                                                                                                         'i S .1                51.7      _

2 24 ._54.3 _ 59.3 5 6 . 9_ . ---- -_5 2 ,. a - -__51. 7 +--_.36.2 3 24 61.5 58.8 56_.6 54.7 62.3 58d 4 24 J 3. 0_ 61.0_ .._ 59.3 s7.4 ___60.1 ____59 ' s _ 74 _ _3 6 . 6_ _ _ __l 0 A . __ 58.6-_ ____. 53.3. _ 62.3 56_7 ___ 6 75 ___j 2 3 _6[1, L_ 5 9J__. _ _5 6. 0 -_ _6L3_ s S .H__ 7 24 __._16.9 60.4 __ _J8. 3___ __ 36.4 __ __10 3 5L9__ B 24 _ 31.0 _36 . Z__ _ 36.0 __ __3s ' ce,3 '___3 6 7 9 24 54.8 56.11 _ 53,6 SL_i 57.6 55.5 10 'n 34.3 60.1 .5 6. 5__ _ _ 54.7 __ _ _ 12 s 31 S M 24 59,1 _6L_4 60.8 _ S 2. 9 __61 .1 _6 ' ' f 12 24 60 m 7__ 63,.1 62.0 61.0 62 .0 62.5 y _ '3 'n sLB. _ _62. D _ _ __ __5 9 . 4 _ -__ _, 52.2 __6L3 _JS _ 3 P ._ :d 24 59.5

,                                                                6_1_. 0                 5_9 8      .-i         57.4_                    62.4    ___

60.2 is ___2 4 _J 9. 7 6 2. ' __ _ _6 0. 3.__ _[. .__ .3 03 63.9 62.] 16 24 63,7 _ 63 1 6Q.] 60_J 66,_4 6],6 17 24 62.8 67.8 64.9 63.1 69.2~ ~ 64.1 18 24 65.7 ._ _ _ 6 8 . 9 -. __ _ 62,3 63 .0 72,2 69.4 19 '4 66.7 . 69_4 67_o _[ 63.2 71.3 70.7 _20 24 65.8 __ 69.4 67.0 67.5 73.9 69.7 _21_ 24 6L 3 6L3 61a 64.8 70.8 68.1 22 24 66.3 68.4 67.5 66.3 70.8 68.7 N 23 21 JL _4 62.6 68,3 6 L S__ O,4 70,6 N 24 24 68.5 70.7 69.6 70.5 73.8 72.3 CN 25 24 69.4 72.3 70.7 73.2 76.7 74.7 26 9q_ 72 , ] _

                                               ]L]               ]],]                                        _ _]] ,5___ _ _              77j                   76,6
  .        27         24                       73.1              74.9           _I_      73.8                   76.3                      78.6                  77.4 C3          28    ___2f.                     _21.9          __14.5                 _

73.j___ _ _ _J 6. l_ __18.3 72.2_ __ 29 24 73.1 75.3 74.3 76.9 78.8 78.0 30 24 , _ 71.1 _23.' 7' S _ _2_4.3 _ __ 78.3 73 . 8 31 24 70. L 71.1 ZD . O __ 72.5 24.5 73 .1__

Table 1.2-1 (Continued) . Maximum, M in imum , and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during June 1978. O P E R A TIN G N i '.'e r w AT E R INL E T T EMP. Sit e DISCHA RGE . EMP DATE HOURS MIN MAX

                                                - - =                   . _ - _ . _

AVC FOR OP HR5 MIN MAX l AVG FOR OP HR5

                                                                                            - - _ . _ . _ _ , - _ ~                                                       L 1

__ 24___ _ _ ___68.4 _ _7 L 1_ .. 70.1 .. J 9 6 21 3 r 73 " - -- 2 2 'i ___66.7 _ 69.Q__ _ 6 7_9 _ __ _ _ _ ___ _l 6 ' } 70.3 6R 3 3 _ _.24 . n7.7 71 l _ _ _ _69.3___ .___66.1 __Z2.) I 69.1 4 2A _ ___ 6 8 , _1 _ _70.7___. _ 69,5 ___6Z.2 _72 J) { 69,3 s 24 1_ L S .h ___ _ 72.2 _ _ .__10 . 2__ .__ _6 2. 0 __ ___ _ _23 . 2_ ZDm 2 __6 24 {__ _69.0 72.7 70.8 68.6 74.9 71.7 7 24 6H.2 72./ / () . 3 67,4 80.0 70.S 8 24____ 66 3._ _ 70.7 "3 . . __6 6. 0_ _lL4 _. 6 3.7__ 9 ?4 _ 6S.1 71 . 1 .20.a _ 68.R_ 73.3 71 I ___ 10 24 69.6 71.6 70.7 70.5 75.2 73.0 11 24 70.2 71.4 70.7 72.7 74.5 }__ 73.7 12 24 69.2 7113__ 70.3__ 69 3_ 73,4 71.3 g 13 24 70.I 72,6 71,2 70,9 75,7 73.4 u 14 24 + 70.2 72.) e1.1 70.7 75.3 72.6 $ _ 15 , 24 69.9 71,0 ___ _ _ ZO ,5_ . _ 69,7____ _ 74,4 72,7 N 16 _ ?4 Q,7 .j 2., j _ _ _ 71, D ____. _ _. _ _7 0 , 9___. _ _ _ 75,0 ___7 4 , Q_ _ _ __ _ 17 24 I __]70.7 71.8 71.3 74.3 76.1 75.2 is 24 ___Z0.1 12.6 _. __71,3 __ 69.7 _ _ _ _ _ __76,6 ____ Z 3 ,_ ;_ 19 24 _ ZO . S. _Zl. '4 72.0 70,8 78,J 74.9 __70 's 70,3 __Z3,4 Zl,8 71,7 77,6 73.9

        ,._; i              24                 69.2                      72.7                    70.7                      68 ,2                        75.0             f      71.7 22            24              _ _7 0 ._9                    72.0                    71.0                 ___ 7 0. (2                    ._11.1                    73 .8 23
.)-                        24                  70.4                     72m2_ __._               71.4              _

__Zl,7 75.9 7L4 _ 24 24 70.2 72,4 71.0 70.2 76.2 71.1 N 25 2f 71.7 _ _. 75. ') _7_S.0 . 7t.2 N cs - 2' 7L8 73.3______[___.72.3 76 7 14 3 2 'o 1 - So S 78 2 27 _ 74 Z3,6 7L6 75.1 16.D _SQJL_ 18.1

 -           2s            0 4_ __ _l ' a                          . __2 6_3. __                 U.'                 .--_26.9                   __3L1                          79.3_ _

_2_9 24 73 J 79,2 7 Z.. D _____!S L , __61,9 81, 4__ 30 'a 77.' 70.1 7E.1 8 0. f._ . 33.0 B2.2 11

Table 1.2-1 (Continued). Maximum, Minimum, and Mean Daily River Inlet and site Discharge Temperatures at the Prairie Island Plant during July 1978. OPE R A TIN G RIVER W ATE R INLE T TEvP. SITF DISCH A RGE TEMP HOUR 5 MIN MA __D _ ATEe.__.-__ _ _-- -.-....- - - _X_4----.. l AVG COR OP HR5 UlN max AVG FCR OP HR5

                                                                                                                                    --- H 7L 9 4 1

__._24_ _ _ __ ___7 5 . 6 , __77.5 76.2 __ 77.8 81 7 2 24 -- _ _.ls .1 _7 6. 5- 75.7_ . - 7L1. - J S.7 1 18.L 3 24 73.9 . _73.! J 4.6_ __ _ 74.3 __ __78.4 36.3 _ 4 26 73.4 _ _ . 5 ,.)__ ____ __74 . 5_ 14.0 16.9 5 24 73.8 77.3 75.9 75.9 73,S_.__[! 81.2 78.3 6 24 75.1 78.2 76.4 76. [ 82.7 79.4 7 24 75.9 77.6 76.5 77_.8 8_1.7 78.9 a _ _2; _14 bL __76.6 f__. _ 75.0 __74.4 _19.9 I 71 .4 9 24 74.7 7 6. _1_ 73 , 1 74,8_ _ IB,Q  ! 75J 10 24 72.2 74.8 73.8 71.7 I 77.9 75.0

                                                                                                                             -t 11           24                     72.7                       74.5          L_73.5                    72.7                  77,0                74<6 H         12

_24 ._72.5____ _ ___74.1._ _ __73.1 __22. L _ _73 .3 73.5 h 13 24 71.6 74.9 72.8 7. 5 76.7 74.1 ~ 14 , 24 72.9 76.0 74.2 72.9 78.3 i 75._3 u is 24 _ __yA , L _ _ ___71,9____1_ _7 6,0 -_ ___Z3.h _ _ 19.3___ 1h.6 u 24 _ ___Z3.6 . .__7 9 . 2_- 71.7 74A E0.9 71.. ? 17 24 76.5 79.5 78.0 76.7 81.0~ 78.7 18 24 78.2 79,6 78,8 71. 7_. E0.9 79.3____ _ 19 2_4 76.1 79. 71 , 2 71 9 __ 81.1 79 S _ 20 2 4___ Z7.0_ I 79 f 77.7 76.3 S 0.3_ 71.6. ji { 24 75.9 78.7 76.4 76.0 78.7 77.1 22 N 24 _ _ Z2.6 _ l6.4 7.4. 0 _ 74.3. _ _7 7. 0 .__ l 73 .2 23 04 __ 72 , 73,2_ _ y __ 73,4 ___yL e __77,3 _ ___ __]4,3_________ CN 24 74 m _24 Z6 3_ J5._0 73.4 79.a , 16.3 25 __J4 7 4. L_ 3_ ZJ,l_ _ __7L4 __i _. ._74.9 82,4 I 78.5 ~ _ 26___ _ _2 4 _ _ 75 7 77.' 76.6 78.6 80.8 __

                                                                                                                                                           '9.7 27            24                     74.9                       77.0          f__ 7 6,_Q                75,0                  80,]          l,    78,_1 28 24                     74.6                       76.5          I    75.3                 75.0                  50.9                78.3 74.1                       75.5                                                     1 29            24                                                                   74.7                 75.5                  80.4          I     77.6 30
             ~~t _ 24                  _ _22.t               -

_-_m 2-- 22.2_ __ r .1 _ __ - -.2 s. a - _23.n 31 i i 2 4__ __ ___12.9_ _ __ _ __73.L_. i b l-. 73.5--- E6.D _7 E .1

x Table 1.2-1 (Continued). Maximum, M in imum , and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during August 1978. OPE R A TIN G River W A T ER INL E T T EMP. Site W A TE R DISCH A RGE TEMP. DATE HOUR 5 MIN MAX AVG FOR OP HR5 MIN MAX AVG FOR OP HR5 1 24 73.4 76.1 74.5 73.5 80.4 77.6 2 24 74.5 76.0 75.2 74.7 80.2 77.T 3 24 73.4 74.9 73.9 72.3 76.8 74.8 4 24 72.7 74.2 73.4 71.0 77.0 '74.5 5 24 73.6 75.0 74.2 72.5 77.2 74.8 6 24 74.8 76.4 75.5 74.5 79.9 77.0 7 24 75.6 77.6 76.5 77.6 82.4 79.8 8 24 76.7 78.1 77.5 80.5 82.9 _ 81.8 9 24 76.0 77.4 76.8 76.9 81.8 79.9 10 24 75.9 77.1 76.5 76.5 80.9 79.3 11 24 76.4 78.0 77.2 76.6 81.7 80.0 _ 12 24 _ _ __ _Z 6. 8 78.9 77_.7 77.3 83.6 80.8 H 13 24 77.9 81.4 79.2 81.8' 86.0 83.3 m 14 24 80.7 82.2 ;1.4 84.3 87.8 85.5 _ __ i e 15 24 78.3 82.2 80.4 82.0 87.2 84.9

 #                    24                                                     76.4        77.3                  81.8         I      79.6 16                        75.5            78._2                         _

17 24 71.8 79._8 77.4 77.4 84.0 81.0 18 24 76._9 7_9 . 5_ _ _ 78.7 80.6 83.3 82.3 19 24 75,3 _ 76,_9 75.9 77.6 80.8 79.1 _ 20 24 74.4 75.8 75.0 74.7 79.7 77.4 21 24 L4_. 5 _ 78.0 75.8 75.7 80.9 73.2 22 24 75.7 77.1 76.1 76.5 81.0 79.3 N 23 24 E3 7_7,8 77.2 79.9 81.6 80.6 N 83.7 g 24 2_4 76.6 7 7 .m__ S _ 77.0 80.6 81.8 80.0 81.2 80.5 I 25 74 13.6 7(19 _ 76.l_ _ s 26 24 75.5 76.4 75.9 79.3 80.8 80.8 27 24 74.4 75.6 74.9 77.4 79.3 78.4 _ 28 24 Z3 4 75._6 73.9 73.5 83.6 76.4 ~ 29 24 7 l. 9 ._ 73_.7. _ 73.0 72.4 77.7 75.1 ~ 30 24 72.1 74.0 73.3 73.2 77.3 75.4 31 2 '4 72.9 74.7 73.8 71.9 76.3 74.6

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Table 1.2-1 (Continued). Maximum, M in imum, and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during November 1978. O P E R A TIN G River W AT E P INL E T T EMP. Site DISCHARGE TEMP DATE ,,.._ HOURS MIN MAX AVG FOR OP HR5 MIN MAX

3. n.:e A VG FOR OP HRS 1 _ 24 -_ ..-_ _ A 8. 7 50.6 49.6 51 4 53.S _52.R 2 24 4fLh__ 50.1 42.3 52.6 54.1 5L5 3 2_4 49.7 52.6 ___50.6_ 53.6 __56,1 4 24 _- 54.6 50_.6 13,7 51. L 5L3 __56.6 35.4 s 24 50.6 56.1 52.0 SL6 6

JL4 55. J 24 4 L_g __.50.6 _ _4 9.1__ SL9 5 3.J_ c2.9 7 2 4_.__ 46.l_ 50.2_ 48.3 5a.1 __3 2.5 SL_4 8 2_4 46.7 __A 9. & 4L5 _50.5 52.4 51.E_ 9 2.4 _.__4 6. 7 48.4 ___47.5 Sa.8 53.0 _52 1 10 95 4LE 48.3 _ _ 48.1 51.4 53.7 5' 6 11

94. 44.5 4L9 ___46.Q 48.S_
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                   . ___2 4                     33.4             3L8                      3L6              36_3  1    39.2 .            37.5 30
                   }      ' 4._         _.___33.1                13.4                     33.3            36_L        19 6              16.6 31        l                                                   _ . _ . _ _

Table 1.2-1 (Continued). Maximum, M in imum , and Mean Daily River Inlet and Site Discharge Temperatures at the Prairie Island Plant during December 1978. OPE RA TING g[ygg N AT E R INL E T TEMP SITE DiscHA RGE TEMP _E DAT HOURS vlN l MAX AVG FOR OP HR5 MIN l AVG FOR OP HR5 _ _ 1 __ MAX _ p___ ___L_ _ _ 2 4 _ -_ _ _ .___33.0 ._33.2 _-___33.l_____ _ 37.5____._ .__3 9 . 8_ _ J 38.9 ___ 2  % 33.1 _ 33.2 __3 3 . l___ . 3 7. L 42.2 39.1 3 24 32.9 33.1 33.0 39.1 40.9 39.9 4 I 24 32.9 33.0 __{_ 32.9 37.6 41.8 i 40.0 5 ___2 'i 32.9 _ _ 3 3. 2-- _ __

                                                                                                 . _._ _3 3 . 0_ __ s                38.4           4 0_.]           31.3 6           2!t               __33.2                          33,3_                                  33,3      _ __3 6,9_         ___.39.9             38.4 7           2j                _33.U_.                       _J3,2 _ __            .

_3 3, l_ 36.5 38.5 37.8 8 24_ _ _ _3 2 . 9_ _ _3 3. l ____ _ _ J 3.0 ____ __ _ _36.0.. 39_,7 _ 37.8 9 13 32.9 35.2 33.9 33.5 39.3 35.1 10 24 32.7 32.9 32.8 37.4 40.0 38.9 11 94 32,6 32,]____ 32.7 37.9 40.0 39.3 12 M _ ____ .____32.1 __ _ 3 2. L __ 32.7 ___32.& 40_,2 39,3 13 24 32. 32.9 32.8 36.7 39.8 38.4 f 14 24 32,S 32,8 32.8 37._1 40.3 39.0 'fH 15 24 _ __ _3 2. 3 - _3 2 . s _. _ _ 32_.8 39.2 41_.8 40_.3.. i6 24 32.8 32.9 32.8 1 36.9 42.4 f 40.4 17 24 32.8 32.9 32.8 37.2 39.6 58 . 7 18 24 _d 32.7 ___ } 32.8 32.8 37.5 40.7 39.0 19 24 32 1 !__33.2 32.d _ _3 Z 4 41,8 39.0 20 24 32.6 32.8 32.7 38.3 40.6 39.3 _ 'l 74 32.6_ __32.7 _. 32,7 37.5 40.1 38.7 22 ____24 _ 32.6 _32.7 ___3 2,_6 37,9 39.8 39.0 23 _ 24 32.6_ j 32 ] 32,_6 3 8,_4_ 41. 9_._ 33,8. 24 24 32.6 32.7 32.6 36.9 39.2 38 4 N 25 'S 32.6 32.7 _32,6 3_6 . 7 39.3 38.1 --~~ 25 24 32.6 32.6 _i 32.6 37.0 39.5 38.2 __27 24 ._ ___3 2,5. 32,1 32.6 3b 6 39.1 38.9 __.2_4_ _ ___ __ __3 3 4 3_ __ 3 . 37 40.4 38.9 [ _ _ 30 ___24 _ __32,4 32.5 32.4 37.5 39.8 38.7 31 ___2_4 u.4 12-.5 32.5 _3 L5 40_y 38.9

Table 1.2-2 Mean Daily Site Discharge Flow (blowdown)* at the Prairie Island Plant During 1978 (cfs) Day Jan Feb Mar Aor May Jun 1 185 185 185 185 212 482 2 185 185 185 185 211 264 3 185 186 185 185 256 273 4 185 185 185 185 277 297 5 185 185 185 185 252 306 6 185 185 185 185 191 456 7 185 185 185 185 195 770 8 185 185 185 185 212 490 9 185 185 185 185 149 478 10 156 185 185 185 216 554 11 178 185 185 185 282 611 12 185 185 185 217 268 438 13 185 185 185 188 214 487 14 185 185 185 185 227 386 15 185 185 185 185 378 478 16 185 185 185 185 307 544 17 185 185 185 213 317 554 18 185 185 185 188 364 350 19 185 185 185 185 490 460 20 185 185 185 221 737 578 21 185 185 185 209 722 396 22 185 185 185 183 244 437 23 185 185 185 185 387 463 24 272 185 185 279 412 497 25 185 185 185 368 595 712 26 185 185 185 353 692 813 27 185 185 185 411 678 923 28 185 185 185 410 689 884 29 185 - 185 304 665 865 30 185 - 185 208 692 899 31 185 - 185 - 577 - Average 188 185 195 224 391 538

  • Including 38 cfs for cooling tower evaporation 276 118 1.2-19

Table 1.2-2 (Continued) Mean Daily Site Discharge Flow (blowdown)* at the Prairic Island Plaat During 1978 (cfs) Day Jul Aug Sep Oct Nov Dec 1 881 558 552 229 185 185 2 923 491 660 327 185 185 3 596 403 540 231 185 185 4 614 395 600 340 313 185 5 746 257 599 279 327 185 6 777 413 680 237 185 185 7 805 703 817 196 185 185 8 699 828 828 185 181 185 9 596 525 850 268 178 185 10 430 608 868 305 203 185 11 506 617 889 333 185 185 12 550 712 821 261 185 185 13 579 743 848 227 184 185 14 703 688 722 185 185 185 15 913 620 531 185 185 185 16 474 619 417 202 185 185 17 680 868 461 236 185 185 18 759 1,023 369 192 185 185 19 733 628 484 185 185 185 20 564 488 9.79 185 185 185 21 611 677 188 185 185 185 22 482 654 244 185 185 185 23 253 777 295 185 185 185 24 506 722 323 185 185 165 25 794 713 283 185 185 185 26 901 742 348 185 185 185 27 467 739 274 185 185 185 28 642 687 229 185 144 185 29 558 611 291 185 144 185 30 389 618 259 185 147 185 31 429 533 - 185 - 185 Average 631 634 518 220 190 185 276 119

1. 2- 2

Table 1.2-3 Daily 1978 Mississippi River Discharge Flow Rate (cfs) at Lock and Dam 3 Day Jan Feb Mar Apr Mav Jun 1 13,898 7,800 7,251 34,350 37,800 21,300 2 13,699 7,800 6,940 33,345 33,495 24,875 3 13,183 7,750 6,740 38,000 33,000 28,288 4 11,002 7,750 6,940 40,000 33,864 30,492 5 11,340 7,750 6,769 41,500 32,592 30,615 6 10,740 7,700 7,061 43,000 31,548 29,830 7 10,700 7,700 7,022 43,200 29,250 29,637 8 10,830 7,700 7,001 44,200 28,182 28,840 9 10,350 7,700 7,000 50,200 28,710 27,951 10 10,605 7,700 7,250 52,000 26,506 25,368 11 10,610 7,700 7,426 56,500 25,920 25,488 12 9,320 7,550 7,282 59,400 27,272 25,506 13 9,130 7,562 7,196 60,000 27,664 23,717 14 8,560 7,700 7,310 64,000 27,272 21,231 15 8,560 7,489 7,190 64,000 27,076 19,710 16 8,680 7,400 6,680 59,000 26,432 19,329 17 8,980 7,340 6,960 57,800 26,109 23,966 18 9,390 6,791 6,960 56,200 24,700 24,175 19 9,400 6,703 7,620 53,000 24,034 24,154 20 9,370 6,750 8,250 52,000 23,625 26,535 21 9,080 ,,800 9,690 49,000 21,684 27,328 22 8,760 6,730 11,549 45,500 20,106 27,100 23 8,605 6,800 15,626 45,000 20,340 26,300 24 8,550 7,214 19,115 44,000 19,329 26,250 25 8,580 7,401 21,200 42,800 17,654 25,955 26 8,580 7,290 23,377 42,000 16,965 28,560 27 8,560 7,290 26,926 41,000 16,011 28,084 28 8,560 7,283 28,396 40,000 18,925 26,656 29 8,280 - 29,172 39,200 18,727 24,165 30 8,125 - 30,742 38,700 20,664 22,310 31 7,676 - 32,252 - 30,360 - Average 9,732 7,398 12,609 47,630 25,349 25,791 276 120 1.2-21

Tabic 1.2-3 (Continued) Daily 1978 Mississippi River Discharge Flow Rate (cfs) at Lock and Dam 3 Day .Tu l Aug Sep Oct "ov Dec 1 29,664 21,701 27,755 16,385 9,926 8,720 2 30,050 20,874 28,008 13,992 10,010 6,985 3 30,300 20,220 25,170 14,412 9,975 6,500 4 30,850 18,900 24,556 13,695 9,961 6,520 5 31,217 18,612 22,488 12,790 10,199 6,700 6 31,528 18,054 20,520 13,000 9,989 7,380 7 36,800 15,218 19,798 12,850 10,031 8,123 8 37,000 13,288 16,618 12,790 10,045 8,600 9 40,000 14,212 17,400 12,720 10,115 8,170 10 44,000 13,320 18,615 12,295 9,975 7,800 11 44,500 13,520 16,618 12,340 10,010 7,500 12 44,300 12,429 13,948 12,740 9,800 7,872 13 45,000 12,411 21,185 13,200 9,695 8,410 14 44,750 11,136 21,620 12,426 10,785 8,170 15 44,300 11,456 21,736 9,513 11,280 8,375 16 41,000 13,720 21,428 9,a47 10,896 8,620 17 42,000 12,330 23,790 9,379 11,096 8,670 18 39,700 11,120 24,566 10,875 11,577 8,753 19 37,400 12,708 24,556 14,122 11,577 8,502 20 33,208 14,685 24,192 10,968 11,407 8,710 21 30,720 12,348 23,608 10,440 10,630 8,620 22 31,200 12,663 23,100 11,192 7,940 8,620 23 30,800 13,700 22,172 11,144 6,340 8,360 24 28,800 16,032 22,540 10,944 5,880 8,360 25 37,454 16,288 21,450 10,052 6,820 8,360 26 26,622 16,458 20,083 10,241 7,390 8,060 27 26,235 26,616 19,296 11,344 9,520 7,560 28 25,575 28,112 17,392 11,240 9,860 7,260 29 25,085 28,148 16,425 10,928 9,930 6,660 30 23,760 27,522 17,055 3,695 9,800 6,620 31 22,850 28,315 - 10,024 - G,620 Average 34,086 16,972 21,256 11,841 9,749 7,977 276 121 1.2-22 j_<

Table 1.2-4 Percentage of Mean Monthly Mississippi River Flow Entering the Prairie Island Plant Intake Canal During 1978 Percentage of Mean Mean Intake Mean Monthly Monthly River Flow Month Flow (c f s ) River Flow (c f s ) . Entering Intake Canal Jan 188 9,732 1.9 Feb 185 7,398 2.5 Mar 185 12,609 1.5 Apr 224 47,630 0.5 May 391 25,349 1.5 Jun 538 25,791 2.1 Jul 631 34,086 1.9 .Aug 634 16.979 3.7 Sep 518 21,250 2.4 Oct 220 11,841 1.9 Nov 190 9,749 2.0 Dec 185 7,877 2.4 276 l22 1.2-23

P RAI RIE ISLAND NUCLEAR GENERATING PLANT ENVIRONMENTAL MONITORING PROGRAM 1978 ANNUAL REPORT ECOLOGICAL STUDIES 1978 ATTACHED ALGAE STUDIES IN THE MISSISSIPPI RIVER NEAR THE PRAIRIE ISLAND NUCLEAD GENERATING PLANT (2.1) Prepared for Northern States Power Company Minneapolis, Minnesota by Glen M. KUhl Environmental and Regulatory Acti'rities Department Northern States Power Company 276 123 2.1-1

2.1 1978 ATTACHED ALGAE STUDIES IN THE MISSISSIPPI RIVER NEAR THE PRAIRIE ISLAND NUCLEAR GENERATING PLANO 2.

1.1 INTRODUCTION

Periphytic algae of freshwater streams and rivers attach to a variety of substrata usually located on or near the shore. Factors influencing species composition and diversity include substrate, temperature, light, current, and water chemistry. Bacillariophyta (diatoms), Chlorophyta (green algae), Cyanophyta (blue-green algae), and Chrysophyta (yellow-green algae) make up the major groups of freshwater algae, with each group containing many species. Attached algae studies at the Prairie Island Nuclear Generating Plant concentrate on diatoms, since they constitute the largest po rtion of the periphyton community within the study area. Under natural conditions, one of the main factors in season-al succession of species is the different temperature optimums of species; and, as a result, as the temperature increases or decreases, replacement takes place (Patrick 1969). When natural conditions are altered and temperatures inecaase above ambient, there may be a shift in normal seasonal succession. Severe the rmal increases may cause the exclusion or certain species and other temp 7rature tolerant forms may dominate. Past studies of attached algae in the s t ud y area have indicated that temperature is the major factor affecting algal succession and community trends (Baker 1976). Data gathered during the 1978, the seventh year of the program, were analyzed, as in previous years, determining if any significant adverse impact occurred . 276 124 2.1-3

2.1.2 FIELD METHODS Field methods were the same as in previous years. Four glass microscope sl id e s installed in an acrylic plastic sampler were allowed to colonize for 14 days. Three sam-plers were placed at each of seven stations throughout the study area (Figure 2.1-1). Following each colonization period, all slides from each sampler were graded according to algal density; the densest slide, to be used in pigment analyses, being placed in a bottle containing 90 percent aqueous acetone solution saturated with magnesium carbonate. The three remaining slides were placed in a slide box and returned to the laboratory for quantitative analyses. Thus, three slides were used for pigment analyses and three fo r quantitative analyses at each station. Extra slides from each sampler were discarded af ter analyses. New slides were placed in the samplers and colonized for the next sampling period. Winter sampling allows only heated stations to be collected, sis.ce ice cond it io ns negates maintaining samplers in the main channel, intake area, and Sturgaon Lake, t LABORATORY PROCEDURE 2.1.3.1 Pigment Analysis Pigment analysis procedures t 'mained consistent with pre-vious years; samples were scraped, macerated, diluted to a known volume (25-200 ml), and centrifuged for ten minutes. The pigment extract was decanted into a four-centimeter cuvette and analyzed at 665 nm and 750 nm before and after ac id i f ic at ion using a Beckman DB-GT spectrophotometer. Chlorophyll a concentrations and phaeophytin a, the primary deg rad ation product of chlorophyll a, were determined by computer program utilizing the Lorenzen (1967) equation: 276 12<3 2.1-4

Chlorophyl a_ ug/cm = 26.7 [(665-750)" - (665-750)a] V (32.5 cm2) (4 cm light path) Phaeophytin a ug/cm 2 = 2_6.7 [1.7(665-750) - (665-730)"] V , (32.5 cm2) (4 cm light path) where: u = unacidified a = acidified 665 = chlorophyll a absorbance 750 = turbidity check absorbance V = acetone and chlorophyll a extraction vclume (ml). Results of the above computer analysis were expressed as micrograms chlorophyll a and phaeophytin a per square centimeter per 14 days. Percent chlorophyll a values were tabulated as follows: Percent chlorophyll a = (chlorophyll a/ chlorophyll a + phaeophytin a)100 2.1.3.2 Taxonomic Identification and Enumeration Miscroscopic analyses remained the same as 1977 methods; slides were scraped and the b io f il removed of all organic material by using nitric acid-potassium dichromate. Cleaned frustules were placed in a vial and diluted to 10 ml with d is tilled water. A thoroughly mixed sample provided a known 2 aliquot to be pipetted onto a 22 mm No. 1 coverglass. The coverglass was mounted on a microscope slide using Hyrax, labelled, and cataloged for microscopic analysis. Slide mounts were observed at 1000 x oil immersion using an American Optical Phase Star phase contrast microscope. Selected taxonomic keys were used to identify and enumerate species observed in 30 to 60 fields or until 100 of the most 2.1-5 b

dominant species were tallied. Raw data were then extra-polated to express cell density as the number of cells per square centimeter. 2.1.4 RESULTS 2.1.4.1 Phytopigment Analyses 2.1.4.1.1 Chlorophyll a Chlorophyll a concentrations at ambient stations during 1978 ranged from 0.00 ug/cm 2 at Station 6 on July 26 to 13.37 ug/cm 2 at Station 5 on May 17 (Table 2.1-1). Main channel stations exhibited chlorophyll a ranges from 1.12 ug/cm 2 at St at ion 1 on November 15 to 11.60 ug/cm 2 at Station 1 on September 6. Mean chlorophyll a concentration for main channel stations was 4.84 ug/cm2 , while ambient Stations 5 and 6 exhibited a mean of 3.35 ug/ Chlorophyll a/cm . Heated Stations 3, 4, and 7 showed chlorophyll a concentra-tion ranges from 0.04 ug/cm 2 at Station 4 on December 28 to 9.21 ug/cm 2 at Station 4 on October 4 (Table 2.1-1). Mean chlorophyll a concentrations were 2.85, 2.18, and 1.62 ag/cm 2 at Stations 3, 4, and 7, re spe c t iv ely . As in previous years, ambient stations had higher mean chlorophyll a concentrations than heated stations, 4.09 ug/cm at ambient stations versus 2.22 ug/cm at heated stations. Seasonal chlorophyll a biomass maxima occurred during early March at heated Station 3, while main channel peak chlorophyll a accumulation occurred in early September (Figure 2.1-2). This six-month separation in peak chloro-phyll a concentration represents the point at which r ive r water temperature reached optimum conditions for periphyton growth. Jptimal temperature regimes at both locatioDS ranged frc.n 20 - 23 C, occurring in early March at Sta-tion 3 and early September in the main channel. 276 127 2.1-6

Low chlorophyll a concentrations at Stations 5 and 6 during late July and early August are not indicative of normal periphyton growth. Extremely high river fl ow in 1978 (Figure 2.1-3) apparently uprooted a large portion of the aquatic macrophytes found in Sturgeon Lake. The uprooted pl ani_ s became entangled on periphyton samplers, forming a mat allowing insufficient illumination for periphyton colonization. 2.1.4.1.2 Phaeophytin q Phaeophytin a concentrations ranged from 0.02 ug/cm to 6.85 pg/cm d ur ing 1978 (Table 2.1-2). Ambient stations (1, 2, 5, and 6) had peak phaeophytin a concentrations during August, depicting the linear relationship between increased temperature and chlorophyll a degradation. Heated Station 3 showed peak phaeophytin a concentration during the May 17 sampling period, but high phaeophytin a to chlorophyll a ratios during August indicate this to be the peak period of chlorophyll a degradation. 2.1.4.1.3 Percent Chlorophyll a Percent chlorophyll a_ values during 1978 ranged f rom 0 to 99 percent (Table 2.1-3). Main channel stations averaged 90 percent chlorophyll a, ambient Stations 5 and 6 (Sturgeon Lake and Intake) averaged 73.5 percent, while heated sta-tions averaged 67 percent. The 16.5 percent difference between main channel Station and 2 and the other ambient stations can be attributed to increased flow and physio-logical richness of the main channel. The 23 percent reauction in percent chlorophyll a between main channel stations and heated stations indicates thermal stress within the immediate plant area. Heated Stations 4 and 7 had mean percent chlorophyll a values of 70 and 63 percent, respectively. This seven percent increase from Station 7 2.1-7 276 123

(immediate discharge) to Station 4 (Barney's Point) indi-cates partial recovery of community he al t h within even a short distance. Extremely low percent chlorophyll a_ values at Stations 5 ana 6 during July are probably related to the shaaing effect caused oy agoatic macrophytes entangled in the samplers. Visual observation of the samplers showed little or no algal growth due to s had ing and abrasion by aquatic macrophytes. 2.1.4.2 _ Microscope Analyses Attacned diatom cel l density during 1978 varied frcm less than 8,000 cells per square centimeter to more than two million. Cell density at all stations for all sampling periods is shown in Table 2.1-4. Minimal cell densities occurred during winter months at Station 4 (Barney's Point), while maximum densities occurred at differing times, de pe nd ing on s t a t io n . Main channel station maxima occurred during September, with a secondary peak during May. Heatea stations peaked during March with a secondary peak in May. Ambient Stations 5 and 6 had a May peak with a smaller peak during September. Maximum cell densities are regulatea by temperature; opt im al temperatures giving rise to peak cell densities of each seasonal community. Table 2.1-5 lists all diatom species id e n t i f ied since the initiation of the PINGP attached algae program. The list now includes 220 species from 34 genera. Diatom analysis for 1978 presents spe cies representing two orders, Centrales and Pennales. Each order has certain genera that are present at all stations. These include Cyclotella, Melosira, and Stephanodiscus from the Order Centrales; cnd Diatoma, Fragilaria, Gomphonema, Navicula, Nitzschia, and Synedra from the Order Pennales. 276 129 2.1-8

Seasonal s uc ce s s io n of the attached algal community is d iv id ed into four groups; winter, spring, summer, and late summer (Baker 1976). Each of these groups has certain dominant species indicative of the thermal conditions of the season. The winter community was dominated by Fragilaria intermedia, Diatoma vulgare var. producta, and Nitzschia acicularis at heated stations. Ambient stations are not accessible during winter months, giving no taxonomic profile of these stations. The spring diatom community was dominated by Synedra (S. acus) and Gomphonela (G. parvalum and G. olivaceum) genera. Peak concentrations occurred during March in the recircula-t io n canal and May at ambient stations. Certain species of Gomphonema occurred at various times throughout the year, but no significant peaks were reached. Summer diatoms were characterized by Navicula (N. cincta) and the centric genus Cyclotella. These species tolerated high temperatures in the main channel, but the even higher temperature within the recirculation canal caused a dip in cell density. Late summer forms included Navicula cincta, Nitzschia acuta, and Nitzschia tryblionella. These species were encountered during September in the main channel, but densities within the recirculation canal at the same time were much lower. A] l diatoms comprising the seascnal community of attached algae operate within a temperature regime indicative of that species. A shift in temperature from optimum to a point outside the regime will cause one species to subside, whereas another form will dominate if tLe temperature is conducive to its grcwth and reproduction. 2.1-9 26 130

2.1.5 DISCUSSION Community structure and seaso nal trends exhibited by the attached diatom community during 1978 reflect the response of algal species to opt imum temperature cond i t io ns . Other factors that may influence algal growth include light, nutrients, and substrate. As in previous years, heated stations had peak chlorophyll a and cell density during January t.h r oug h March. Ambient main channel stations had peak chlorophyll a and cell density during September. Optimum temperature range for both areas was 20 - 23 C. Chlorophyll a and cell density were low during June and July, especially evident at Sturgeon Lake and intake sta-tions (5 and 6). River flow during 1978 was much higher than 1977, causing an over abundance of aquatic macrophytes ta be uprooted and carried downstream. This vegetation became eatangled in the periphyton samplers, causing abra-sion of the substrate and shading of the entire sampler. Comparison of field notes and laboratory results indicates the vegetation was probably responsible for low periphyton growth. Periphyton growth generally followed normal seasonal pro-files indicative of the Mississippi River near PINGP. Data gathered over the last years have given a detailed account of species composition and chlorophyll pigments as they react to ambient river cond it ions and heated effluent from PINGP. Thermal ef fects have always been most evident in the recirculation canal, close-in discharge, and to a lesser extent at Barney's Point. The most evident effect seems to be a shift in peak cell density, community rtructure, and phytopigment concen tr a t ions . Rapid mixing of the effluent below Barney's Point, especially that of U. S. Lock and Dam 3, indicates a return of the community to normal am b i c .'. t structure immediately downstream of the plant. 276 IM 2.1-10

2.1.6 LITERATURE CITED Lorenzen, C. J. 1967. Da termination of Chlorophyll and Pheopigments : Spectrophotometric Equations. Limnol. Oceanogr. 12(3): 343-346. 276 132 2.1-11

Figure 2.1-1. Periphyton sampling locations. O N m Oy g h, intake Canal i / S te 0# p 2 L&D 3

                                                     #S j a

3 m

                                *%in; 2.1-13 N^    276 {33

F igure 2.1-2. '979 Chlorophyll a Concentrations at Station 3 and Main Channel Stations and 2 (Mean).

                                                     /
                                                     /

s .o - A E ( <

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f

                                                                -4 A           g                                        h
                  +

4 0 4 g,0 o# )K

                       $            4 v             J v

o ') & 00 0 4 d v 276 04 2.1-14

Figure 2.1-3. Comparison of 1978 and 1977 River Flow Data. Figures Based on Data from U.S. Lock and Dam 3. 50,000 , J + f L l LEGEND l T 45,000  ;  ;. 1 7 1978 l r r 4-C b 1977 - I i  ! 40,000 L l i i n-- l

                                                                                                       ,                     I l           >

l { . 35,000 i I  ! I I i  ! ,

                                                  .      -~-r-                             ,

^

            '[

_ l 0 --

                                  '     l        i'       '       l       l'               l       '   i    l                l 8 30,000 i

j i  ! i: i 3 l l  ! , l  ! a Cr c: I l i $ 25,000 ' l , l l 5  ! ;i

                                !                                                                                             I 1                 i        I                                                                        !

A l 1 l l l l I i I-s; 20,w0 , , ,,,  ; 'i l i  ! i I , . L

                              ~

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l f l IT\ l l/ i s l' NL_i/ _. A / , 4 N 5,000 - l 9

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                                                                                               }                   I
                      !                                                                 }                l i
                 ,I      l             <

i i h ' 1 0 F M A M J J A S O N D J DATE 2.1-15

Table 2.1-1 1978 Chlorophyll a_ concentrations at each station expressed as ug/cm /sarnpling period . Collection Date Station 1 2 3 4 5 6 7 1/11 , , 0.73 l l l 0.07 1/25 l l 0.83 l l l 0.21 2/8 l l 3.41 l l l 0.57 2/22 l l 7.21 l l l 2.82 3/8 4 4 8.17 4 f f 7.01 3/22 o u 6.50 S S S 6.74 4/5 l l 6.93 , , , 3.82 4/19 e i 2.96 i e i 4.67 5/4 6.54  !  ! 3.98 5/17 9.29 10.75 6.73 4.70 13.37 9.05 2.06 6/1 2.95 1.44 1.24 1.21 3.57 2.33 0.81 6/15

  • 1.68 0.58 0.17 2.40 0.59 0.25 6/28 *
  • 1.10 1.07 1.10 0.57 0.21 7 7/12 *
  • 1.05 0.97 1.49 0.83 0.62
$     7/26             *
  • 0.16 0.21 0.10 0.00 0.12 8/9 2.77
  • 1.69 0.95 0.31 2.07 0.35 8/24 8.15
  • 2.58 3.24 9.57 4.19 1.04 9/6 11.60
  • 2.61 2.43 9.69 4.32 1.27 m 9/20
  • 7.07 1.97 2.14 7.05 3.93 1.09 10/4 7.37 3.71 1.70 9.21 5.13 5.29 0.49 10/18 4.48 2.59 3.01 3.11 0.79 1.12 0.34 11/1 1.22 2.21 4.94 0.38 2.84 1.38 11/15 1.12 1.25 0.94 2.19 0.19 1.33 0.58 11/29 , , 1.43 0.33 , , 0.57 12/12 g y 1.20 0.11 y y O.87 H H Q,21 J2/28 H H 0.69 0.04 Mean 5.97 3.71 2.85 2.18 3.94 2.75 1.62
  • Sampler missing - vandalism or destroyed by barge traffic.

Table 2.1-2 1978 Phaeophytin a concentrations at each station expressed as g/cm / sampling period. Collection Date Station 1 2 3 4 5 6 7 1/11 i i 0.06 i i i 0.05 1/25 l l 0.12 l l l 0.14 2/8 l l 0.12 l l l 0.15 2/22 l 8 0.49 l l l 0.05 3/8 5 5 1.94 5 $ $ 0.33 3/22 O g U l.52 S S S 0.64 4/5 j j 3.48 j j j 0.68 4/19 j j 2.27 j j 0.67 l o 5/4 3.92 1.45 H 5/17 0.13 0.66 6.85 0.42 0.51 0.41 0.55 h 6/1 0.28 0.26 0.72 0.82 0.75 0.41 0.70 6/15 - 0.53 0.76 0.08 0.94 0.28 0.28 6/28 - - 0.51 0.56 0.27 0.33 1.22 7/12 - - 1.38 0.70 0.99 0.59 0.60 7/26 - - 0.58 0.10 0.35 0.38 0.42 8/9 1.65 - 1.31 1.08 0.36 2.11 0.42 8/24 1.24 - 0.95 2.12 0.81 2.12 0.88 9/6 1.30 - 0.80 0.39 1.22 0.79 0.34 y 9/20 - 0.71 1.26 0.29 1.01 0.60 0.95 Cs 10/4 0.50 0.20 1.02 1.71 0.19 0.70 0.46 10/18 0.19 0.24 1.04 0.50 0.21 0.30 0.38 [ N 11/1 11/15 0.07 0.02 0.05 0.75 0.44 0.61 0.35 0.06 0.10 0.16 0.38 0.14 0.39 11/29 , , 0.42 0.08 , , 0.28 12/12 y y 0.42 0.17 y y 1.11 12/28 H H 0.13 0.04 H H 0.17 Mean 0.67 0.33 1.28 0.59 0.56 0.67 0.53

Table 2.1-3 1978 Percent chlorophyll a values for each station. Percent chlorophyll a = (Chla + Phaco a_) x 100. Collection Date Station 1 2 3 4 5 6 7 1/11 l l 92 I i j 58 1/25 i i 87 i i i 60 2/8 l  ! 97  !  !  ! 79 2/22 l l 94 l  !  ! 98 3/8 C U 81 $ $ $ 96 3/22 7 7 81 7 7 T 91 4/5 l l 67 l l l 85 4/19 I 8 57 ' ' 8 87 5/4 63 73 5/17 99 94 50 92 96 96 79 m 6/1 91 85 63 60 83 85 54 L' 6/15 - 76 43 68 72 68 47 i 6/28 - - 63 66 80 63 15

  • 7/12 - -

43 58 60 58 51 7/26 - - 22 68 22 0 22 8/9 63 - 56 47 46 50 45 S/24 87 - 73 60 92 58 54 9/6 90 - 77 86 89 85 79 9/20 - 91 61 88 87 87 53 N 10/4 94 95 63 84 96 88 51

  'd    10/18             96          92       74          86         79    79    47 11/1               -

98 75 89 86 95 78 _- 11/15 94 96 68 86 66 90 60 u 11/29 i 77 80 e i 67 O 12/12 y $ 74 30 $ $ 67 H H H 12/28 H 74 39 43 Mean 89 9] 68 70 75 72 63

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Island Numbers Expressed as Cells per Square Centimeter January 11, 1978

                                                                 ~

Station Species  : 4 7

     -----CENTTUEES-----

Cyclotella kutzingiana- 2844 2844 Cyclotella Meneghiniana 2844 5689 helosira granulata . 2844 5689 Stephanodiscus astraca 11379 8534

     -----PENNALES-----

Amphora ovalis 11379 5689 Cymbella ventricosa 2844 8534 g Diatoma vulgare 8534 2844 _ Fragilaria brevistriata 5689 2844 I, Gomphonema olivaceum 14224 19915 O Gomphonema parvulum 19915 hi 17068 5689

                                  ~'

oyrosigma acuminatum 1 2844 M Navicula bacillum v. capitata 11379 44172 Navicula cincta 51205 < 34769 Navicula hungarica 17068 < u 54050 N Nitzschia acicularis 8534 N Nitzschia acuta 45516 9 39826 2844 48360 Nitzschia dissipata 5689 0 - Nitzschia palea bl Surirella ovata 2844 2844 @ Surirella ovata v. pinnata 2844 sp;ng Synedra acus 0 2844 Synedra ulna v. oxyrhynchus fo. n 21335 constricta Unidentified (girdle view, etc.) 5689 8534 _

Table 2.1-4 Attached Diatom Species Identified Since Initiation Of Prairie Irland Nuclear Generating Plant Attached Algae Program COSCIRODISCUS LACUS1kIS DIATOME VULGabt COSCINQDISCUS Cf. PCTHI! V. S36 SALSA DIATOMA VU LG AL E V. GPkkDIS mATICULA PLACEsT1LA SUPIkELLA GAACILIS CO SC I N0D I SC U S SP. DIATOMA VULG AFE V. PbODUCTA &&VICULA ELACENTJLA FO. L ANC EOL AT A SUkIP E LL A LIBERBIS V. H EL V ET IC A CYCLOTELLA CCMTA 3AVIC7LA & ROT 6 ACTA SJif BELL A GT ALIS DIATG94 VULG&BE 1 Uhtb0wn n&VICULA &360L4 CIC LOTEL L A A UT4I NGI Aba EPIThEMIA TuscID& 5351PELLA OV AT A CIC LOT E LL A R EN EG dI NI AN A EJ NGII & V ALI D A EAVICULA CF. EUSILLA SURIAELLA GT&TA V. C90RENA MELOSIh8 A1BIGUA u AVI;ola kEI Bhab DTII SUPIEELLA OVATA V. PIWWATA FFAGILABIA BSEVISTEIATA 34WIc3tA bitsCOCEPHALA PELOSIEA DISTABS V. PFAFFIANA SUFI& ELL A OVA TA V. S A LI N A MELOSIBA GRAsuLATA ThAGIL&hth BBEVISTFIATR V. 15FLATh EkVICULA CF. SALINA&UM IB&GILABIE CAPUCIWh SIBEDa n ACTIN &STROIDES PELOSIB A GlabULaT A V. AEGUSTISSIMA NAVIOULA SCHChrELDII SYNEDSA ACUS Fs A%IL &hI A CONSI kU EMS R E LO SI b ?. ISLkNDICA R&TICUL A SCCLIOPLEUkCIDES SYNEDA4 ACJS V. AADIANS PRAGILABIA CONSTRUENS V. SUBSalINA NAVIC3LA SCUIELOIDES PELCSiRA ITALICA FBAGILARIA CONSThutBS 1 VENT!B SffEDSA AFFINIS RELOSIPA VARIANS WAVICULA T3SCU L A SYhEDEA EUMPEst RELCSIP& SP. FR&GIL&8IA C9070513515 u n VIC UL A SP./ GIRDLE VIEW F8AGILAh!A 46ACILLIMA Sf5EDRA RU3PE55 T. F AMILI A BIS STEPH ABODISCCS ASIP A E A BEIDIUi AIFImE SYNEDAA UkrA PSAGILA6IA H ABRI SSONII %EILIUM ptBIUM STEPHANODISCUS ASTEAEA Var. MINUTULA FRAGILhkin HA&LISS0u11 V. SYNEDRA ULNA V. DAEICA STEPH4 50 DISC US DUBIUS Th&GILAPIA INFLATA $ h0M PG I DL3 WEIDIUM D981DR FO. CONS!5 ICT A Stu!CBA ULWA V. IMPRESSA STEPHiu0 DISCUS WIAGabAE TIT 15 CHIA Ar1CULAbls sfhEDRA GL W A V. OffPNINCNUS FRAGILakIA INT E63 FDI A BIIZSCHIA ACUTA STEPatt0 DISCUS SP. FB AG IL A RI A PINNAT& $1AED5A ULIA V. OIYkHTNCHUS FO.00378 ACTA ACh M AST8 ES CONS F ICU A W ITI SC MI & ARPh!311 SYNEDRA VAJCHERI&E FRAGILAEIA VISESCEns BITISCHI A CAtITELL AT A ACH3ABILES EXIGUA fBAGILABIA VIntSCENS V. RESOLEPT1 UNIDENTIFIED (GIEDLE V IEW, ETC.) ACH N & E TH ES EAIGU A V. HETEBCWALVATA 51TISCHIL CLO S TE RI UM fRAGIL&aIA SP. (GIncLE, FILARENTp BITZSCHIA CORR 4T AT A ACHWAETHES HUNGAAICA GOMPHONEMA ACDMINATUR ^ 5111 SC HI k DISS1P&T1 III M' II l!' I1 ETlfIld ACHI A NTH ES KOL BII GORPHONER A GR ACILE AC H515 TH ES LAVCEOLAfa EITISCSI& DuBIA ' blN I"'7 ^N3 1*' GoaPHONERA LABCEOLATUS WI TI SC HI & FILI FC F M I S ACHuaVTHES L ANCE0L AT A V. FI L IPTIC A G O M PM O NE M A LCNGICEPS V. GEACILIS bJ ACH 545 TH ES LapCEOLATA V. 40STBATA NITISCHIA FONTICOLA

  • GOMPH0btaa LONGICEPS V. S UBCLA V A T A gITI SCHI A FeuSt3 LUM <

AC M a & B TH ES MIEUTISSIMA GORPHONERA OLIVACEU9 f!N II^ rs F e"I t h" AC N E A N TH ES SP. (B EN T, GIPDLE VIEW) EITESCHI A F9 0STULUM V. S'J B5 A LI A A I ' 'A I G3 MPH 00EMA CLIVACECM V. R!n97ISSIMA gITZSCHIA GRACILIS '"'I h" (O ACTIEELLA PU NCT AT A RMPHJR4 OVALIS GCAFNONEMA PA6VULUM GO'PHONERA PAbVULUM V. MICPOPUS RITISCRIA MhuTISCHInth u1TtSCRIA MEurLERIAsi [f

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Asfh0ln FESPUSILLA PEDICULUS GOMPH0 HEM A $PFAEhCFHCEUM COMPHONEMA VLhT61COSUa EITISCHIA MOLS ATIC& gITZSCHIA KJT11NGIANA

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                                                                                                                                                                                                       ] \[' I ' . "A l ' " # LA A RFNG R A SP.                                   GOM &HouE M A SF. 1                                                                              ; p g 7g . . 7 3       <3y AuCMOEONEIS $2HAE8CPH06A                                                                        WITISCRIn MICR0CEPHkka                           ya z7 sn g g p7 ..

GIROSIGMA AC UMIN ATU3 WITISCHI4 OBTUSA ASTERIONELLA FORMOSA HauTISCHIA S P. FPUsn trA ro +u )i^ BACILLABI& PARADOIA b!TISCHIA OVALIS g, i i v3 ;rw. RESIDICN CISCULAAZ EITEICHIS P&Lik CALCsEIS BACILLUq nEEADION ClaCULARE V. CoASTRICTA cy an; I cs At r uitrr 3 CALOWEIS CLE TEI 31TISCHIA FALACTA NAVIf LA CF. M n ; sI9 SJVICULA BACILLIFORMIS EITISCHI A R ECT A CALONEIS LEMISII BATICUIe BACILLU9 EITZ4 CHI A ;C H AN & s T: A ryn%AF A CA L0sEIS SILICUL A NAVICULA BACILLUM V. CAPITATA i iert r A L I N,t . t P NA9 INTF Eyf rI A CDCCOEffS DI51bUTA EITtSCRIL SIAG%050M/ THERMAL nav!CULA C AFIT ATJ1 RITISCnI t 53 ELIW E ARIS C0(COsEIS DI SC UL US #AT7"ULA JINCIA {wgjl COCCONEli PEc!cutOS BITISCalA SUBTLLIS NAV..'ULA CITSUS BITZSCHI A TFV ELION ELL A COCCOR EIS PL AC EN TUL A N A V .U LA COLICPLEDROICES

   "                                                                                                      WITISdIA T5YBIONELLA V. flCTCal&E CDCCOMEIS PLACENTULA V. EUGLikTA                 B ATICULA COSTUL AT A                                                                                            x COCCONIIS PL ACEN TOI A V. LIWE&TA                                                              BITISCHI& S P. ito ST E. LGE NL FURCT A E)

RATIC3LA C R Y P TCC EP H A L A OPEPHOBA .9 & B T T I COCCC 4 EI S S CUT ELLU M N VICJLA C B t PTOC EI N AI A V. V EN ET A P!N5JLAEIA ACBCSPHAT5IA Cf A A TO FL E UP A SOLEA W. 'CULA CUSPIDATA PlutGL&&Ik B911511 V.

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    ~~      CY a&TO FLEU R A SCLER V.       FFGULA           un:ICJs1 C1SPIL&In W. RMSIGUA CIRBEI LA AMEMICEPMALA PIE 50LasIA GIBEA 3ATICJLA DICLPHALA                             PIBbULAi!A MIC80STAPEON V. BPEBISSONII
     .fJN  CfRBEILA H J S T E DT I Z                         NAVIC1LA DIC F& H AI A V. NEGL1CTAss           EIVuut&6IA 4GL&FIS

( CTMBELLA P3SILLA CYEPELAs T9MIDA WAVICULA ELEGANS NtVICJLA EIIGun PluR3LABIE POL 104Ch P!>pULA6IA S P. ifRBELLA 7727'DA EAVICULA GAS 1Eug PLEut0 SIGMA AnGULATVM CIM1ELLA VENT I 35 A NAVICJLA LJNGAhIcA FLEUFOSIGat ILG5GATUP ctM3EttA 3P. NATICULA HJNGAh1CA V. CAPITATA - j P - CTMBEL.A SP g B HOICOSF HENI A CURV AI A ' # NAVICUIA HJSTECTII STAJF0FEIS INCEPS CYMBELLA ' 2 mA VICUL A INTEden S TA JE 3bEIS SP.1 , D*WTICULA JLE04b5 hAVIC3LA MINIMA SUhIFELLA A MGU ST AT A L .0034 ELOMGAIU1 NAVIC7LA MOTICA SUFIFILLA SISEk&TA V. CONSTEICTA DIATOMA HIE 98LE AA VICUL A PEREGh!NA SuhIDELLA DICTMA

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8 8 8 6 R 3 5 1 8 3 3 1 3 8 5 8 3 4 8 5 5 3 7 6 6 6 0 0 6 0 3 7 6 0 0 7 0 3 3 3 0 4 6 3 3 0 5 5 5 4 5 7 1 2 5 7 7 0 2 7 8 1 8 7 7 5 1 1 7 d 3 3 3 1 3 07 4 3 0 0 4 0 7 7 7 0 7 3 7 7 0 n 2 1 1 1 1 1 1 1 1 1 1 1 a 1 l s I er ie rt i e am ri Pt n n re o aC i e t 4 _ H5 $0" E ne a r t ra S eu vq iS8 R 7 r9 i e1 pp p , i s5 sl2 sl iey sCr s a isu Man 8 6 4 6 6 4 7 5 4 2 4 6 4 3 0 8 4 8 3 6 7 8 4 n a 3 1 0 0 5 3 1 5 6 8 5 6 3 2 4 4 6 1 5 0 0 1 7 6 4 1 q edJ 5 3 5 0 2 5 3 6 5 6 7 6 1 8 3 5 5 1 8 2 5 4 1 h e 7 5 2 5 0 2 0 5 2 7 7 2 02 0 7 2 7 1 0 0 5 0 7 t s 1 2 1 9 2 5 8 2 6 9 5 6 4 5 2 6 5 9 4 9 6 s 1 2 1 1 2 / 2 1 f e orp sx mE o - t s a ar n i e i s ) Db a l i . . m s a l a o c d u s s i a t f t eN i b c t c e h m u a a e s c o s r g t l g u , a i p h w t . . e c e t a v a v . a n n i A n a t v c a a y v s a e a a s l . l h e i a t i ns m . a v a i s r e i - h r a r ep u mv h p a a p d r h i i a y l 5 c - g t - l t u e e u at x d

-             e   -   n s  -  o  m s    r c c        lm          e c

l ce l la i a o r 1 p - i a - e u i t i a uu a ih e b p 1_ S - z - c t v s g v vl a o h ro f u a i i a . c 2 S t s - n a e n n i rl t t p ac n c t h v u p s t E u u S a g r o o l ai c p e gn o i s e L k c E l n b c l o pc n y c ny h c c m i a l A s L o a i r i uh c a a a d vo a a a n n t d e b R a i A s l a a a a ab c c d h r s l l c i a T l d N e e i i m m m a a a a i i i la u u r i f T N l o N h r r e e ea a a a aa a i i E e n E t a a a n n nl l l l ll l h h h h l a a t t C t a P n ml l o o ou u u u uu u c c c c e r r s n o h - a oi i h h hc c c c cc c s s s r d d n e z z s l p - n t g g p p pE i i i ii i z t t tz ir e e o

                  -                                                                                                 d
                  -  cy e - h aa        a m m        m v v v         v vv v t                           n n c       i
                  -     t  - c ir       r o o        o a a a         a aa a i             i i i u y y            n
                  - C S - A DF         F G G         G N NN        NNNNNNNNSSS                                       U
                                                                               )

N,ywH q7 % psC [--

                                                                                            ]

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Island Numbers Expressed as Cells per Square Centimeter February 8, 1978 Station Species 3 4 i 7

      --- -- C EN T RA LES ---- -                       5216                                   3674 Cyclotella kutzingiana                        ~~___5216                             _

3674 [Stephanodiscus niagarae 15647 0

     -----PENNALES-----

Achnanthes exigua 5216 3674 Amphora ovalis 0 0 Diatoma vulga re 0 3674

    'Diatoma vulgare v. producta                        5216                                      0
    ' Fragilaria brevistriata                          20863                                   3674 N
    'Fragilaria capucina                                5216                                  22047 7    Fragilaria construens v. subsalina 31296               hi                  7349 y }Gomphonema olivaceum                                41726               M                  18372 Gomphonema parvulum                             406829                                   51442 Navicula bacillum v. capitata                     15647               g                      0
   ' Navicula cincta                                   62589               y                    7349
                                                                           "                  14698
   ' Navicula dicephala                               2~0435 Nitzschia acicularis                              31294               M                  11023 198199                                    7349 rs) Nitzschia acuta

'sJ Nitzschia dissipata 307730 ' 44093 Nitzschia palea 5216 3674 -- Surirella ovata v. pinnata 20863 7349 JN Synedra ulna 6?snq 3674 IA) Synedra ulna v. Oxyrhynchus fo. 146041 ___ 7349 constricta Unidentified  ! 67805 7349

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Island Numbers Expressed as Cells per Square Centimeter February 22, 1978 Station Species 3 4 7

       -----C ENT RA L ES -----
                                                                                          ~~~-~

Cyclotella kurzinghiana 17395 0 Melosira granulata n 9sqq Melosira varians __ 570n _. _ 4847 Stephanodiscus niagarae __ 11sq7 9693 _-----PENNALES----- Cymatopleura solea 11997 4847 Cymbella ventricosa 21191 9693 Cymbella sp. 5798 14539

Diatoma vulgare O G 29079 U Fragilaria capucina 11597 8 9693 Fragilaria intermedia 40588

4847 Gomphonema olivaceum 34790 , 63005 Gomphonema parvulum 75378 6 43619 Navicula cincta 23193 ' d 87238 Navicula cryptocephala 34790 o 14539 Na'ricula dicephala 17395 9693 Navicula dicephala v. neglecta 278320 i 33925 rs) Nitzschia acicularis 23193 24232 'sJ Nitzschia acuta 432278 111470 cts

     - Nitzschia amphibia                           17395

_. Nitzschia dissipata lison 58158

                                      '~'-

4x Synedra ulna ?1193 9693 LN Synedra ulna v. Oxyrhynchus 1 86 214538 Synedra ulna v. Oxyrhynchus fo. 185547 0 constricta Unidentified 34790 } 9693

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Island Numbers Expressed as Cells per Square Centimeter March 8, 1978 Station Species 3 4 7

     -----C ENT RA LES -----

Cyclotella Meneghiniana 8133 _ _

                                                                                          -- - ~ - - 7T2 8 Stephanociscus niagarae
                                           ~

4066 , 3743

     -----PENNALES-----                              ~

Diatome elongatum~ 12199 11931 Diatoma vulgare - 26205 Diatoma vulgare v. producta ,pa 2439gd _ 22462 Fragilaria intermedia 32473 29949 Gomphonema olivaceum 12199 11231 N Gomphonema parvulum 48798 ' 44924 y Navicula cincta 56931 0 52411 g Navicula dicephals 20332 - 18718 Navicula nungarica v. cap 1 EEra 16266 _ 14974 Navicula pygmaea 4066 E 3743 Navicula rhyncocephala _ _ 8133 d 7487 Nitzschia acicularis 8133 o 14974 Nitzschia acuta 65064 " 78617 Nitzschia amphibia 8133 7487 Nitzschia dissipata 24399 18718 J 16626 3743 cts pinnularia gibba 3748 Surirella ovata 8133 24399 11231 xx Surirella ovata v. pinnata J2- Synedra ulna 12199 26205 Synedra ulna v. Oxyrhynchus 36598 l 3748 _ Unidentified (girdle view, etc.) 12199 I 7487

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Island Numbers Expressed as Cells per Square Centimeter March 22, 1978 Station Species 3 4 7

                                              ~
       -----C ENT RA L ES -----

Melosira granulata 15804 -- 0 Melosira varians 23706 0

      -----PENNALES-----                                                      ~ ~

Frag 11 aria intermedia 3951 3qnna Gomphonema olivaceum 7902 27657 Gomphonema parvulum t 7902 [ 23706 Navicula cincta 27657 11853 y Navicula cryptocephala _]902 7902 N Navicula dicephala 0 N 3951 Navicula hungarica v. capitata~- ~ 7902 M -0 Navicula rhyncocephala 79D2

                                                                                ~                       3951 Navicula schonfeldit                             TIG53                           <              19155 Navicula sp.                                       7902                          y              11853 Nitzschia acicularis                             15804                                            2951 Nitzschia acuta                                  51363                           S                   0 p,   hitzschia dissipata                                3951                                              o
 ~s. Nitzschia dubia                                 __3951                                            3951 CN    Pinnularia gibba                                   3951                                              0 Surirella ovata                                    3951                                           7902 ax     Synedra rumpens                                  23706                                          11853 LJi    Synedra ulna                                       3951                                         11853 S_ynedra ulna v. Oxyrhynchus                     31853                                          19755 Unidentified (girdle view, etc.)                   7902                                              0

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Is. nd Numbers Expressed as Cells per Square Centimeter April 5, 1978 station Species 3 4 7

                                                                             ~
         -----CENT _ RALES-----

Melosira granulata 55314 67167 Melosira varians 19755 47412 Stephanodiscus astraea 15804 [ _ _ _ 35559

         -----P ENNA L E S ------                                                      7 Amphora ovalis                                         7902                    G         11853 Diatoma clongatum                                      3951                    $           7902 3           3951 Diatoma vulgare                                        3951 w    Fragllaria crotonensis                              ' 15804                    $         11853 Fragilaria intermedia                                  7902                    y         19735 3951
                                                       ~~
                                                                                       ~

[ Gyrosigma acaminatum 71118 m Navicula cincta 15804 , 51163

                                           ~~~

Navicula huncarica 11853 G 7902

             ~

Navicula Reinhardtit I 15804 a 3951 Navicula schonfeldii 11853 i o 11853 pg " sa Navicula sp. 15804 7'302 CN Nitzschia acicularis 7902 U

      .Nitzschia amphibia                                     11853        )

27657

,,,    Nitzschia stagnorum/thermalis                          35559                              23706 Ch     Surirella ovata                                        2755T                              19755 Surirolla ovata       v_   ninnnen                     25657                               7902 15804
                                  ~

__Synedra_ ulna o 0 0 Synedra ulna v. oxyrhynchus - __ Synedra vaucheriae 7902 0 Un iden tified__(g irdle vi e_w, 7902 '9D'-

                                                                                                   /

etc.)

Table 2.1-5. Attached Diatoms 6f the Mississippi River near Prairie Island Numbers Expressed as Cells per Square Centimeter April 19, 1978 Station Species 3 4 7

         - ----C ENT Rl: LE S -----                                                              11853 Cyclotella Meneghiniana                             7902                                11853 Melosira varians 11853                               15804
         -----PENNALES-----                                                   ~
                                                   ~~

Cocconeis pediculus 11853 U Cocconeis placentula v. cuglypta 7902 o w __Cymbella crostrata_v.. auerswaldii __ 7902 11853 _ Illa _tama elRngatum

  -                                                 ~-

3951 _ 31608 i Gomphonema olivaceum ~

                                                -~

11853 Ei 3951 U Gomphonema parvulum 23706 ~ M 86922

      , Gyrosigma acuminatum 7902                                 7902 Navicula cincta                                    15804        _  ,         <           3951 Navicula hungarica                                   3951                    M           12853 Navicula peregrina                                       O                   R           23706
                                           ~~

Navicula schonfeldii 7902 o~ 11853 Navicula sp. 3951 7902 ng Nitzschia acicularis 3951 102726 'M Nitzschia acuta 31608 11853 7902

                                                                                                       ~~

C7s Nitzschia .amph ib ia 7902 _. _Nitzsch_ia dissipata 7902 19755 as Synedra rampnps 39D1 23706 's! Synedra ulna 11853 o Synedra ulna v. Oxyrhynchus 7902 _ 15804 _Un iden t if ied_lg_ir_dle view, etc.)

                                                             /voz

Table 2.1-5 Attached Diators of the Mississippi .uver near Prairie Island Nunbers a prcs32d as Cells per Square Centireter J une 15, 1978

                                  .                                                                                                                 Station Species 1                    2 3

[ 4 5 6 7

     . - ----C ENT RA L E Q--- --

Melosira distann v. pfaffin g _ _ _ _ . _ _ 3_951 720' 1"RP2 n 33M 2E2 Melosira granutga 3951 0 g o n L-g*

     ' Melosira islandica E5                              11#'3           116 ~' 3            3901                   0       #

Melosira varians /m sh 11 , 7302 Tm2 M1

             ----P ENNA LEs - Z !~ ~                    -_--                                                   ___                 _

Achnantho9 l a n ceol a_t a __ 7902 0 0 7902 0 12n? Cocconeis placentula_.yar. cuglvrta 3951 0 0 0 0 19 5 'L Cymbella turgida 0 3951 3951 0 7902 15804 cmbella ventricosa 15804 3951 7902 O_ 0 3951 Diatona elongatum 67167 0 7902 23706 7902 7902 DiatoTa vulgare va r . Droducta 23706 0 15804 27o57 7902 0 Fragilaria capucina ' 7902 7902 11853 11853 0 0 Fragilaria crotonensis T 11653 3951 11853 0 0 0 Fragilaria intermedia  ; 2 7 6 ~.,7 0 27657 0 0 63216

  • Gomphonema olivaceum -] 711Til 3931 15004 0' 15604 j 23706 Y Gomphonema paru21um C --- T3b 34 0- - 11853 0 7902 3951 S Navicula cincta h 1973F ~ 0 39510 0 0 1]353 Navicula cryptocephala 7 39 3W 0 I E04 '

23706 U+02 77avicula rhyncocephala < 0 0 S13u3 47412 3551 82>71 Navicula schonfeldii e 11853 7902 47412 3951 0 0

                                                                                                                                                      ~3351
                                                                                   ~~
  • Nitzschia acicularis 15804 49412 0 0 3951
     ~ Nitzschia acuta                                                                             347688                              7902          106677             15804               17384      23706 N                                                                                                                                              l q   ~ Nitzschia dissipata
                                                                                               +

3951 0

                                                                                                                                   - 11853 7W2
                                                                                                                                                ]

j 7902 O O 0 3951 0 g 7_902 0 g Nitzschia s t an n o rum /t h e rm a l i s 1 Synedra ulna t 106677 0 i D ' O O l 0 Synedra ulna var, oxyrhynchus _ _ _ c' - 7902 _ 0 0 0 0 I O s

                                         - - - - ~

1 7902 ,907 70'02,_ ,f' 395T 7902 3951 3 Unidentified (gy. r dle view u eg. L ___ __ r -. g _ ______J-__-__._____ i

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                                                                                                                                                    ~
                                                                                                                                                      #~

Table 2.1-5. Attached Diatoms of the Mississippi River near Prairie Island Nurrbers Expressed as Cells per Square Centirneter August 9, 1978

                                .                                                                Station Species DJ                                                      l 2             3              4              5          6     7 N           -----C m PALES-----

O h Cyclo *ella kutzin1h_iana 11853 7902 23706 0 0 7m' _Cyclotella Meneqhiniana 154089 67167 47412 3951 0 47412,__ _

      -       Melosira granulata                       19755                       114579         39510               0       3951 67167

(- _ Melosira italica 7902 7902 3951 7902 0 0

p. , -----PGNALES-----
           , Achnanthes exigua v. heteroslnta_          3951                           0             0                0         0    0
          ._ Amphora ovalis                               0                            0           3951               0         0    0 Gophonema parvulun                     12Q432        _

4 7im , 39510_ 11853 15804 15804 Gyrosigma acum ina t e 0 19sl 11853 0 0 3951 Gyrosigma scalproides. 3 9 51___.__ 1951 . 7 107 0 0 0 Navicula cincta __q3M6__. T 0 98215 11853 11853 0 Navicula cryptocepnala O 'I _ 0 0 _ 0 0 0 Navicula dicephala 7902 _$ 0 3931 0 0 0 Y Navicula hungarica O E 3951 3951 0 3951 7902 Y ' Navicula mutica 11853 P O 7902 0 0 0 E2 Navicula sp. (g ird le view, etc.) 3T51 9 11853 0 0 0 3951 7902 E O llD53 3951 0 '951 Nitischia acicularin 27261 ci 0 3951 0 0 0 Nitzschia acuta 67167 154089 11853 15804 59215 J itzschia dissinata 47412 __ 0 T951 Nitzschia palea 0 3951 0 11853

          - Nitzschia recta                           __ 0                           3951            0              0           0    0 Pin g ria oibba                           3951         _

7902 3951 0 0 0 Synedra ulna 3951 3951 3951 7902 3951 0 3951 ___ 0 3951 0 7902 3951 Unide %ifi M (cirdle view. etc ) w O. hA _ nn fe-. t e2 i 1 - i nnO \p2H C.ITl 7 ) W. 1 _ u - bs o i k ;),

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                                                              -                       1 I_

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                                                                                                                                      ~

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                            -   C C C              R     M M S           -   C C C D E F C C N N N N N N N N                                                                  N N S' S                      S     S M'I J_ M N C                   QOC y LiC

Table 2.1-5. Attached Diators of the Mississippi River near Prairie Island NunLers Expressed as Cells per Square Centimeter Noverter 15, 1978 Station Species -- -- 1 i 2 3 4 5 - 6 7

                                                                                                                                                                         ~
                                                                                                                                      ~
                                                                       '         ~       -              ~
    - -- --C ENTRA'L E S -----                                                                    0             7902             0          0              0            395_1 _

Coscinod'iscus Rothii 3951 3951 7902 35559 7902 11853 Cyclotella kutz ing iana 3951 3951 3951 3951 3951 3951 Cyclotella Meneghiniana 79Q2 IT65 3 19751 3951 3951 0 Melosira c,ranulata 15804 3951 11H53 0 7902 M51 55314 7902 19755 71118 94824 '1955 Melosira varians scephanodiscus niagarae 23706 3951 27657 7902 11853 19755

    - ----P EM!A LES -----

Amphora ovalis 0 1951 3951 0 0 $1Hs1 Cocconeis placentula var. euglypta_ _ 7902 3951 0 3951 0 3951 _ Cymbella turgida 3951 7902 3951 7902 3311 __Q_ . Cymbella ventricosa 39510 11853 3951 0 0 15dO4 Diatoma vulgare var. producta 205452 3951 7902 63216 51363 0 __ g y Pragtlaria intermedia 63216 15804 3951 39510 liCCS ___l b351__.- Gomphonema olivaceum 0 7902 0 21]C Q __ 27E57 _____L { __ e Gornphonema parvulum __ j _ T3020 63216 71118 75069 QJ216 2 559 Navicula cincta > ;IR 82971 114579 2gl501 1sp,20 n171r . Navtcula cryptocephala '~412 3951 __ 0 91 % 1 win 77' Navicula rhyncocephala 23706 11853 19755 27657 ';ncA 'a m,4___ Navicula sp. 3951 0 3951 0 7902 3951 Nitzschia acicularis 19755 3951 3951 19755 11853 3951 0 3951 0 15804 3951 0 Nitzschia acuta 7111H 27657 35559 82971 6 32'6 11853 Nitzschia dissipata 0 7902 23706 0 3951 3El Nitzschia recta 3951 3951 11853 3951 0 G N Nitzschia tryblionella _ 0 0 7902 3951 0 0 N Rhocosphenta curvata 59265 0 0 31608 23706 0 m Synedra ulna 0 3951 l 0 0 0 0 Synedra ulna var. Oxyrhynchus 0 _ 1951 O I O 3951 0 m synedra ulna var, oxyrhynchus fo. constricta 7902 3951 7902 3v51 3951 790_2 _ Unidentified (girdle view, etc.) _ Q __

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PRAIRIE ISLAND NUCLEAR GENERATING PLANT ENVIRONMENTAL MONITORING PROGRAM 1978 ANNUAL REPORT ECOLOGICAL STUDIES BENTIIIC MACROINVERTEBRATE STUDY (2.2) Prepared for Northern States Power Company Minneapolis, Minnesota by Texas Instruments Incorporated Ecological Services P.O. Box 225621 Dallas, Texas 75265 April 1979 2.2-1

TABLE OF CONTENTS SECTION PAGE List of Figures 2.2-5 List of Tables 2.2-5 2.2.1 Introduction 2.2-7 2.2.2 Methods and Materials 2.2-7 2.2.2.1 Field sampling 2.2-7 2.2.2.2 Laboratory Analysis 2.2-8 2.2.2.3 Data Analysis 2.2-10 2.2.2.4 Statistical Analysis 2.2-11 2.2.3 Results 2.2-13 2.2.3.1 Petersen Dredge Sampling 2.2-13 2.2.3.2 Artificial Substrate Sampling 2.2-18 2,2.4 Discussion 2.2-23 2.2.5 Summary 2.2-26 2.2.6 Literature Cited 2.2-29 Appendix A2.2 1 Splitting Procedure Justification 2.2-159 276 164 2.2-3

FIGURES Figure Description Page 2.2-1 Macroinvertebrate Sampling Locations (Quantitative) 2.2-33 2.2-2 Total Densities (#/m ) and Relative Abundance of Benthic Macroinvertebrates Collected by Petersen Dredge fr a Mississippi River near Red Wing, Minnesota, 1978 2.2-34 2.2-3 Benthic Coamunity Diversity (11') as Collected by Petersen Dredge from Mississippi River near Red Wing, Minnesota, 1978 2.2-38 2.2-4 Total Densities (#/m ) and Relative Abundance of Benthic Macroinvertebrates Collected by Multiplate Artificial Substrate Samplers from the Miscissippi River near Red Wing, Minnesota, 1978 2.2-39 2.2-5 Benthic Community Diversity (11') as Collected by Multiplate Artificial Substrate Samples from the Mississippi River near Red Wing, Mi esota, 1978 2.2-41 2.2-6 Mean Monthly Dischargo at Lock and 3 from the Mississippi River near Red Wing, M....asota (1976-1978) 2.2-42 TABLES Table Title Page 2.2-1 Occurrence of Benthic Macroinvertebrate Taxa Collerced by Petersen Dredge from the Mississippi River near Red Wing, Minnesota during 1978 2.2-43 2.2-2 Summary of Benthic Data Collected by Petersen Dredge 2.2-48 2.2-3 Macroinvertebrate Density (#/m ) and Relative Abundance from Samples Collected by Petersen Dredge near Red Wing, Minnesota during 1978 2.2-49 2.2-4 Summary Statistical Information for Petersen Dredge Samples Collected during 1978 near Red Wing, Minnesota 2.2-94 2.2-5 Occurrence of Benthic Macroinvertebrate Taxa Collected by Artificial Substrate Sampler from the Mississippi River near Red Wing, Minnesota during 1978 2.2-95 2.2-6 Summary of Benthic Data Collected by Artificial Substrate Sampler 2.2-10 1 2.2-7 Macroinvertebrate Density (#/m ) and Relative Abundance f rom S mples Coll ected by Artificial Substrate Sampler near Red Wing, Minnesota during 1978 2.2-102 2.2-8 Summary Statistical Information for Multiplate Samples Collected during 1978 near Red Wing, Minnesota 2.2-158 276 165 2.2-5

2.2 BENTHIC MACROINVERTEBRATES 2.

2.1 INTRODUCTION

This report of the benthic saacroinvertebrates of the Missis-sippi River at Prairie Island is the ninth in a continuing monitoring program for Northern States Power Company's (NSP) Prairie Island Nuclear Generating Plant (PINGP) near Red Wing, Minnccota. This annual report presents analysis and interpretation of 402 benthic samples collected during the fitth year of plant operation, spanning the period January through December 197E<. The pr ima ry objective of the study is characterization of the benthic community in the vicinity of PINGP, with respect to any effects which may be attributable to opera-tion of the generating facility. To meet this objective, a s tud y program was designed in which any major alterations in community integrity directly attributable to plant operations could be segregated from natural community fluctuations. 2.2.2 MATERIALS AND METHODS 2.2.2.1 Field Sampling Regularly scheduled benthic macroinvertebrate samples were collected by Northern States Power personnel during 1978. Two types of samples were collected :

1. Petersen dredge samples (every 6 weeks from February through November)
2. Artificial substrate (Hester-Dendy) samples (every 6 weeks from January through December) 276 166 2.2-7

The Petersen dredge was used to collect sedentary substrate dwelling organisms. Petersen dredge samples were collected at Stations B-1, SL, X-1, X-3, Y-1, Y-2, C-1, and C-4 (Figure 2.2-1). The Hester-Dendy multiplate sampler (artificial substrate) was used to sample benthic organisms which prefer a rigid substrate. Artificial substrate samples were collected at Stations B-1, SL, X-1, X-2, X-3, Y-1, and Y-2 (Figure 2.2-1). Petersen dredge sampling consisted of tnree rep.licate grabs at each station using a dredge sampling 1.0 ft. 2 Samples were washed in the field using a No. 60 mesh sieve and preserved in 37 percent formalin. Artificial s. * . ate samples were collected using a Hester-Dendy multiplate campler consisting of eight tempered hardboard plates with a aurface area of 1.0 ft 2 (Hester and Dendy 1962). The samplers we re anchored with concrete blocks suspended from surface floats and incubated for approximately six weeks. At each station, four samplers were installed in two sets at two a n.d four feet below the surface, respectively. After the six-week incubation period, samplers were removed and organisms sieved and preserved in the same manner as Petersen samples. All samples were then shipped to the Dallas sample pro-cessing f acility of Texas Instruments. Data were analyzed by Texas Instruments personnel and subsequently couputer processed to final form. 2.2.2.2 Laboratory Analysis Before analysis, samples were washed through a No. 60 mesh screen, which removed most of the remaining sediment and preservative. The contents of each sample were then sorted according to general aiv rr holog ic al characteristics to 2.2-276 167

facilitate efficient processing of bulk samples. Samples were placed in a sorting tray or petri dish, depending on sample size, and systematically scanned under 10X magnifice-tion. Organisms displaying similar morphological features were placed in vials containing 70 percent ethanol for later identification and enumeration. For extremcly denF2 artificial substrate samples, a TI-modified Folsom plankton splitter (Scarola and Novotny 1968; Lewis ;ns Garriott 1970) was utilized to obtain statisti-cally representative subcamples. During 1978, 86 multiplate samples were split. This procedure was designed to yield a subsamnle of workable density while maintaining a high

evel of precision. Appendix A2.2.1 presents the rationale and justification for this subsamb vg procedure. In addition to those samples listed in Appendix A2.2.1, 14 additio 21 samples were checked to verify splitting preci-sion. Sort ing procedures are the same for subsamples as chose liated a we for entire samples.

Sorted samples were placed in d iv id ed petri dishes, where all taxa were enumerated and identified using a stereozoom d is se ct ing microscope equipped with an ocular micrometer. When necessary, a compound microscope supplemented the dissecting microscope. Only those organisms whose dimen-sions exceeded the mesh size of the screens were quantified. Orgar. isms were id ent i f ied to the lowest practical identi-fication level (LPIL), usually genus, but higher levels of identificatior. were made for certain minor taxa that required extremely dif ficult taxonoraic delineation. 012g0-chaetes and chironomids were mounted on slides with floyers mounting media ( Ro back 1957; Kn ud se n 1966) for identifica-tion purposes. Enumeration involved only ind iv iduals living at the time of collection (indicated by the presence of fleshy tissue) . In 2.2-9 276 168

instances when organisms (such as oligochaetes) fragmented due to preservation and handling, only anterior portions were enumerated. Principal taxonomic keys used in the identification of benthic macroinvertebrate taxa were: Ward and Whipple (1959), Pennak (1963), and Usinger (1971). These were supplemented by monographs specific to the systematics of locally occurring organisms and/or specific groups of taxa (see asterisked references in Literature Cited, subsection 2.2.6). 2.2.2.3 Data Analysis Data obtained from the benthic portion of this study were used to generate a presence / absence list of benthic macro-vertebrates for each month studied. Numerical abundance data were calculated as total number of organisms per collection (No./ft ), extrapolated, and expressed as a mean number (by species and total) per square meter. Standard errors for each set of replicate samples were also computed for each station. Rela t iv e abundance (percent) data were expressed as the percent that a par-ticular ta::on comprised of a total sample. Evaluation of these data provided information on species and number per unit area, relative composition during each sampling period, and normal seasonal population fluctuations. Using the Shannon-v- ** i .ormational measure of diversity (H') (Shannon a- 2" 1949), a diversity value was calculated for es s ai6 p 'm collected. This value was compared (as a ratio) to the m&"imum theoretical diversity of the sample to obtain a measure of " evenness" (J') of distribution of inc i v iduals among the various taxa (Plelou 1969). 2.2-10 2[O $b

2.2.2.4 Statistical Analysis In order to accurately characterize phenomena observed in the data, a series of statistical analyses was performed. These analyses were designed to determine significant trends and patterns that existed in the data, primarily significant variances in the data that may be attributable to plant operation. Sampling with the Elester-Dendy multiplate sampler was not consistent throughout the year due to icing cond it ions in the winter months and very high flow conditions during spring months. Ilowe ve r , there were subsets of months and stations that formed consistent blocks of data. Three such " blocks" were used to compare stations as shown in the following table: Station-Month Combination Stations

  • Station Station Station Month Sampled 1-7 2-7 3-7 1 2-7 x x 2 2-7 x x 4 2,4-6 5 1-7 x x x 7 1-7 x x x 8 1-7 x x x 9 2-7 x x 11 1-7 x x x 12 2-7 x x
  • 1 = B-1; 2= SL; 3 - X-1; 4 = X-2; 5 = X-3; 6 = Y-1 ; 7 =

Y-2. 2.2-11 276 lio

Petersen dredge sampling was consistent throughout the year with three subsets of months necessary to compare stations. These data " blocks" are shown in the following table: Stat ion-Month Combinations Stations

  • Station Station Station Month Sampled 1-8 3-6 1,3-8 2 2-6 x 3 1-8 x x x 5 1-8 x x x 6 1-8 x x x 7 1,3-8 x x 9 l-8 x x x 10 1-8 x x x 11 1-8 x x x
  • l - B-1; 2 - SL; 3 - X-1; 4 = X-3; 5 = Y-1; 6 - Y-2; 7=

C-1; 8 - C-4 The Newman-Keuls multiple range test (Winer 1971) compared mean densities against background sampling variation to determine which stat io n( s ) were statistically distinguish-able. Since there were no occurrences of zero densities in Petersen dyedge samples, the log 10( " # " #* " could be used without further modification for this gear. The occurrences of zero densities at Stations X-1 and Y-2 for artificial substrate samples in January necessitated use of a log aa ans fo rma t ion to oMan mean6ghl 10 comparison data for this gear type. Logarithmically-transformed data yielded a comparison of relative orders of magnitude rather than absolute densities, and tended to stabilize variance. Newman-Keuls multiple range tests were performed for the monthly means for each ANOVA. 2.2-12

2.2.3 RESULTS 2.2.3.1 Petersen Dredge Sampling Taxa Inventory / Seasonal Occurrence Benthic macroinvertebrate ecllections ( Petersen dredge) yielded 78 taxa, with chironomid (midge) larvae comprising the major portion (Table 2.2-1). Organisms appearing most ubiquitously throughout the study period were Nematoda, Tubificidae (Oligochaeta), and the chironomids Chironomus, Cryptochironomous, and Procladius. The prevalence of these organisms in 1978 collections is consistent with the last two years' findings (Texas Instruments 1977 and 1978) in which these organisms were well distributed both spatially and temporally throughout the study area. As in previous yearc of study in this area, a broad assem-blage of pollution-tolerant (i.e., Chironomus, Cryptochiro-nomus, and Tubific id ae [ Oligochaeta] ) , f acul tativ e (i.e., Caenis, Plumatella repens, and Polypedilum), and intolerant (i.e., Ablabesmyia, Psectrocladius, and Hexagenia) macro-invertebrate taxa (Weber 1973) were collected. Taxa occur-ring in the area are generally characteristic of benthic assemblages in moderate current, soft-substrate rive rine environments (Hynes 1970). Numerical Abundance The temporal density pattern was not consistent for all stations d ur ing 1978 (Figure 2.?-2). The upriver control station (B-1) and down r iv er control stations (C-1 and C-4) exhibited s imil ar seasonal density patterns in which peak densities occurred in the March sampl ing period. Due to high river flows (Figure 2.2-6), which scoured the main channel bottom substrates, Stations B-1, C-1, and C-4 2.2-13

exhibited markedly reduced organism densities for the May through November sampling periods. Densities at the recirculation canal station (X-3) were consistently low throughout the year. Stations located at Sturgeon Lake (SL) and the p' an t, intake (X-1) displayed similar trends in density with numbers increasing from February through June, declining in July (no samples were analyzed for SL in July) and September, increasing significantly in October and, finally, declining again in November. Peak values for Station SL were reached in June and October, whereas Station X-1 reached its maximum values in May and June. Station Y-1, discharge canal, registered an annual peak in February, then remained fairly constant at a lower level from March through June before declining to an annual low in July. Densities remained low at Y-1 in September be fo re reaching a secondary peak in October, then declined in November. Station Y-2, also in the discharge canal, exhibited an annual low in February with densities thereaf ter increasing each sampling period to a m ax imum in July. Density values for Station Y-2 then declined through October before in-creasing in the November sampling period. As in 1976 and 1977, the intake station (X-1) compared favorably with the upriver control station (SL). Also, as in the two previous years, the recirculation canal station (X-3) displayed sustained low values o/er the course of the year. The discharge canal stations, Y-1 and Y-2, reflected generally increasing densities relative to the recirculation canal, with Station Y-2 exhibiting the highest density values of all stations sampled during the year ( 12,7 5 9. 2/m 2 in June and 12,960.1/m 2 in July). Stations B-1, C-1, and C-4 displayed s imilar trends in density during the year. Densities for these stations were the highest of all sampled stations in March (Table 2.2-2), but thereafter, were generally lower than all stations except the recirculation canal (X-3). Total density values ranged from 10.8/m 2 at 2.2-14 2]O k

Station C-1 in September to a maximum of 12,960.1/m 2 at Station Y-2 in July (Table 2.2-2). These values can be compared with ranges of 0-10,079/m' and 75.3-17,947.6/m 2 2 observed during 1976 and 1977, respectively (Texas Instru-ments 1977, 1978). Percent Composition As in the previous two years of study (Texas Instruments 1977, 1978), tubificid oligochaetes and dipterans, primarily Ch ironomid ae (midge larvae), dominated the Petersen dredge collections in the study area during 1978 (Table 2.2-3; Figure 2.2-2). Tubificids represented 69.0 percent of all organisms collected, while dipterans constituted 24.8 per-Cent of the total. Collect iv ely , these two taxa contributed 93.8 percent to the total number of organisms in 1978. Tubificid worms were abundant at all sampled stations except the recirculation canal (X-3) during the February and March sampling periods. Tubificid abundance at X-3 remained low throughout the year, reflecting the unstable substrate and turbulent water flow conditions that characterize this station. Beginning in May and extending throughout Novem-ber, the upstream control (SL), intake (X-1) , and discharge (Y-1, Y-2) stations exhibited similar tubificid abundance patterns. The upr ive r control (B-1) and downriver control (C-1, C-4) stations also exhibited similar patterns of tubificid abundance, in that numbers were generally reduced from 1976 and 1977 levels in response to unusually high river discharge (Figure 2.2-6). The scoured cond it ions at these stations and in the recirculation canal indicate that substrate stability and river discharge are two major factors controlling tubificid abu nd e r.cc and distribution in this area. The fact that the upstream control station (SL) is comparable with the intake (X-1) and discharge (Y-1, Y-2) 2.2-15

stations would suggest, as in past years, that plant opera-tion is not a major factor influencing tubificid r'andance and distribution. Procladius, Cryptochironomus, Chironomus, and Polypedilum were the dominant chironomid (midge) larvae co' acted during 1978. This compares favorably with 1976 and 1977 data (Texas Instruments 1977, 1978). As with tubificid worms, densities of chironomid larvae were markedly reduced at the recirculation canal station (X-3) further emphasizing the lack of suitable habitat at this location for the most abundant organism groups in the study area. The compara-bility in terms of abundance and density of chironomids of upstream control s tat io n (SL) with intake (X-1) and dis-charge (Y-1, Y-2) stations suggests that plant impact is localized in the recirculation canal, and that normal population structure is maintained at othe r stations in the study area. Community Diversity Seasonal variations in community diversity (H') and eveness (J'), are affected by density, the number of taxa collected, and the d istr ibu t ion of densities within the various taxo-nomic groups. The H' index has a range of 3.31 log N (N= 2 number of taxa), with an effective range of 0 to 4 in most freshwater s i t ua t io ns . The J' index has a range of 0 to 1, with a value of 1 being a completely evenly d istributed (i.e., equal numbers of individuals in all taxa sampled) po pul a t io n . Community diversity values (H') (Figure 2.2-3) generally exhibited the lowest v4. lues of the year during months of extremely high tubific.d percentage composition (i.e., February, March, and May), and had the highest values where chironomid percentage composition was high (i.e., September, 2.2-16

October, November). Values of H' ranged from 0 at Station X-3 in May, when only one taxon was encountered, to 3.08 at Station C-1 in November, when 19 taxa were collected. This range in diversity values is greater than that observed in 1977 and 1976, when max ima of 1.17 and 2.53, respectively, were recorded (Texas Instruments 1977, 1978). Evenness (J') values ranged from 0 to 0.90 (on a scale of 0 to 1) corres-ponding to H' min im a and maxima, r e spe ct iv ely . Relative to 1977, the increase in benthic community diversity measured in 1978 can largely be attributed to decreased densities of t ubi f icid worms from the very numerous levels during 1977 and to the occurrence of midge larvae in the samples over a longer time than in the previous year. Statistical Analysis The data were analyzed in three subsets, because in certain months, all stations were not sampled. The Newman-Keuls multiple range test was applied to station means. Logarith-mically transformed data were used to stabilize variances and provide for o rd e r-o f-m ag n i t ud e comparisons among sta-tions. Results of statistical analyses for 1978 data are presented in Table 2.2-4. Comparisons among intake ( X -1 ) , recirculation (X-3), and discharge (Y-1 and Y-2) stations for all sampling periods reveal that X-3 differs significantly (a= 0.05) from the other three stations, with much lower densities. Stations X-1, Y-1, and Y-2 were not distinguishable from each other for the data set including these stations and all sampled months for both transformed and untransformed data. Using the transformed data set for all stations and the months March, May, June, S e pterabe r , October, and November, a comparison across all stations indicates that upstream control stations (B-1 and SL) were indistinguishable, in 2.2-17 }/g )/

terms of total density, between each other and from the intake (X-1) and discharge stations (Y-2 and Y-2). Differ-ences in total density among the upstream control (B-1), discharge (Y-1), and downstream control (C-4) stations were not distinguishable. The corresponding un trans fo rmed data show no significant differences in total density among upstream control station (B-1), recirculation canal station (X-3), and downstream control stations (C-1 and C-4). Untransformed data for all months except February and July and all stations except SL (Table 2.2-4), depict only discharge Station Y-2 as significantly dif ferent from other stations in the study area. Transformed data for the same months and stations show no differences between the recir-culation canal station (X-3) and downstream control station (C-1), but significant differences exist between these two stations and all Jther stations in this subset. In summary, the statistical analyses indicate that varia-tions in infaunal density patterns may be introduced bv plant-related activities in the immediate vicinity of the plant, particularly at recirculation canal Station X-3, where consistently low densities were observed. The data also indicate, however, that these variations are within the natural variation introduced by river discharge and substrate characteristic fluctuations in the upstream and downstream control areas of the river during 1978. 2.2.3.2 Artificial Substrate Sampling - Taxa Inventory / Seasonal Occurrence Artificial substrate sampling yielded 108 invertebrate taxa, of which chironomid larvae comprised the greatest portion (Table 2.2-5). The most ubiquitous organisms were nema-todes, Na id id ae (Oligochaeta), and the midge larvae, Glypto-tendipes sp., Cricotopus sp., and Tanytarsus sp., Beginning with the May sampling period and extending to the end 2.2-18 2[h }[f

of the year, mayfly nymphs ( S t e n one.rr.a sp. and Caenis sp.) and caddisfly larvae (Hydropsyche orris, Hydropsyche sp., Cheumatopsyche sp., Potamyia sp., and Neureelipsis sp.) were also widespread in the study area. Artificial substrate sampling yielded 56 taxa that were not collected by grab sampling. This number can be compared with 23 and 39 taxa, which were found xclusive to multi-plate samplers in 1977 and 1978, respectityly. The majority of organisms exclusive to the multiplate samplers were immature insect forms representing the orders Ephemeroptera (mayflies), Trichoptera ( cadd is fl ies ) , and Diptera (flies, midges). Numerical Abundance Seasonal density distribtuion data (Figure 2.2-4 sad Table 2.2-6) reflected s im il a r numerical trends to those ob-served in 1976 and 1977 for multiplate sampling in the study area. Peak densities for all stations were recorded during the May to November time frame. Recirculation canal (X-3), intake (X-2), and discharge canal (Y-1) stations displayed the highest densities during 1978 -- a fact consistent with prior years of data (Texas Instruments 1977, 1978; Haynes 1976). Overall, densities ranged from zero values recorded at X-1 and Y-2 in January to 108,921 organisms /m at X-3 in May (Table 2.2-7). High density values were also recorded at X-2 in May (approximately 76,000/m ), X-3 in August (67,352/m 2 ), and Y-1 in September ( 6 2,6 26/m ) . B-1, SL, X-1, and Y-2 generally exhibited higner densities in 1978 than were observ ed in 1977; this was particularly true in the May and September sampling periods. Pet ant Composition The relative abundance of major taxa in the study area is displayed in Figure 2.2-4. January, February, April, and 2.2-19

                                                   }

May samples were generally dominated by aquatic oligochaetes ( Na id id ae ) . Nemerteans (?roboscis worms) and nematodes were also present in appreciable numbers during this time period at X-2, X-3, and Y-l. Chironomid larvae began to appear in large numbers in the May sampling period, and was a prevalent group in the July through Novembet collections. Glyptotendipes sp. was the dominant chironomid encountered with densities reaching ma x im um s of 49,462/m 2 at X-3 in August and 52,379/m at Y-1 in September. These values represented 73.4 percent and 83.6 percent, respectively, of the organisms collected at the station during the specified sampling periods. Cricotopus sp., Parachironomus sp., Psectrocladius sp., Polypedilum sp., D_i c rote nd ipe s sp., and Tanytarsus sp. were other chironomids that were commonly encountered and sometimes numerous in the study area from May through November. Trichoptera larvae and/or pupae of the families Hydropsychidae and Polyce n t ropod id ae were also commonly e n ec,u n te red , and were periodically n ume rous in the July to November collections. Hydropsyche orris, Hydropsyche sp., Cheumatopsyche sp., Potamyia sp., Hydro-psychidae (LPIL), Cyrnellus sp., Neureclipsis sp., and Polycentropodidae ( LPIL) , collectively, constituted 10.2 percent, 35.0 percent, 36.6 percent, and 27.8 percent of the total organisms collected in the study area during the July, August, September, and November sampling periods, respec-tively. Na id id ae ( Ol igoch aeta ) were again the most dominant organisms in the area in the November and December collec-t io n periods, with densities representing 46.8 percent and 84.8 percent of the organisms collected during these months, resp ctively. Naidids were e spe cially numerous at X-3 in November, where they comprised 87.2 percent of the total, a figure equivalent to approximately 52,800 organisms /m 2 . As in prior years, Na id id ae , Chironomidae (particularly Glyptotendipes sp. and Tanytarsus sp.), and Hydropsychidae were the predominant organisms collected during 1978. 2.2-2 276 179

Na id id ae dominated the J arm a ry , February, April, and May collections. Chironomids began to increase as a proportion of the total in May and, along with net-spinning caddisflies (Hydropsychidae and Polycentropodidae), constituted the majority of organisms collected during tha warm summer and fall months. While a greater number of taxa were collected during 1978 than in the three previous years, the taxa comprising the dominants for multiplate samplers were very s imilar for all four years, indicating 11 '.tl e or no altera-tion in the compositional characteristics of the community dur.ng 1978. Community Diversity Table 2.2-6 summarizes density, H', J', and number of taxa collected Figure 2.2-5 shows the changes in d iversity (H') occurring through the year for artificial substrate samples. Seasonal variations in diversity (H') were char-acterized by generally higher values during the warmer months of May through November, consistent with the greater numbrrs of taxa collected during this period. Diversity (H') values ranged from O (Staticn SL, Januar" and February; Station X-1, February) to 3.46 Station X-1, November). These values can be compared against the ranges observed in 1977 (0 to 2.78), 1976 (0 to 2.83), and 1975 (0 to 2.78). Generally, higher community diversity measures were recorded during 1978 due to the influx of a number of taxa of drift-type organisms in the artificial substrate collections, a condition brought about by high stream and river discharge rates in the study area. Stetions X-2, X-3, and Y-1 gener-ally d isp1ayed the lowest d ive rs ity (H') measurL in 1978. Evenness (J') ranged from 0 to 0.91 with a mean J' of 0.45 and a standard deviation of 0.25. The lov ' values observed during 1978 reflect toe dominance of certain taxa (i.e., Naididae, Glyptotendipes sp., and Hydropsyche orris) in the study area. 2.2-21 276 180

Statistical Analysis Sampling with the Hester-Dendy Multiplate Sampler was not consistent across the year. There were, however, subsets of months and stations that formed consistent blocks of data. Three such blocks were used to compare stations (Table 2.2-8). The Newman-Keuls multiple range test compared the mean densities against the background sampling variation to determine which s ta t ion ( s ) was statistically distinguish-able. Logarithmically transformed data yielded a test which compared relative orders of magnitude rather than absolute density d if f erence s . This trans fo rmat ion also tended to stabilize variance in the analysis. Data from January, February, April, May, July, August, September, November, and December, and Stations X-1, X-2, X-3, Y-1, and Y-2 show that X-1, Y-2, Y-1, and X-2 had statistically s im ilar densities. This was also true with samples from intake forebay (X-2), recirculation canal (X-3), and discharge (Y-1). Transformed data showed that X-1 and Y-2 had s im ila r densities, and that these two stations were significantly different from X-2, X-3, and Y-1. Adding Sturgeon Lake (SL) to the analyses showed that SL sample density was most similar to Station X-1, the nearest other test station, and to Y-2. Transformed data showed that SL density was 7tistically identical to X-1 and Y-2 density measurements Data for all stations for May, July, August, and November showed the recirculation canal (X-3) to have significantly higher densities than all other tested stations. The remaining stations were not distinguishable from each other 2.2-22

on the basis of total density. Logarithmically trans fo rmed data indicated that X-3 and X-2 were similar and that these stations were significantly dif ferent from 3L, B-1, and X-1. Stations Y-1 and Y-2 were statistically similar to one another and both were similar to X-2, X-3, and B-1. Station Y-2 was signficantly dif ferent from X-3. In summary, in 1978 as in 1977, stations near the plant were readily distinguishable f rom the more distant stations. The upstream and downstream control stations, Sturgeon Lake, and intake station (X-1) were also similar to one another, particularly SL, B-1, and X-1. Data indicate that effects of power plant ope rat io n on benthic organis- densities (as reflected on Hester-Dendy mult ipl ate samplers) is l imited to the immediate vicinity of the Prairie Island Nuclear Generating Plant, particularly with respect to the recir-culation and/or discharge of heated water. 2.2.4 DISCUSSION In order to assess the influence of operations of the Prairie Island generating facility on the benthic macro-invertebrate community, it is first necessary to describe natural community dynamics and their pertinent control factors in the study area. During 1978, high r iv e r dis-charge with its attendant effects of biota / substrate scour and rapid -- sometimes turbulent -- current, played a major role in influencing community dynamics. These etfects were noticeable bot:1 in the infaunal and artificial substrate sample results. Infaunal effects were most readily observed in the upstream control (B-1) and downstream control (C-1 and C-4) stations, where densities of benthic organisms were markedly reduced from March through November when compared with 'evels reached at these stations during 1976 and 1977 (Texas Instruments 1977, 1978). The scouring effects of unusually high discharge rates on infaunal 2.2-23

community dynamics, as experienced in the study area during the first three quarters of 1978, are well documented (Hynes 1970; Hoopes 1974; Anderson and Lehmkuhl 1967). The resi-liency of the infaunal community at the control stations was observed in the g rad ual upward trend in densities during October and November after flow rates had s ub s id ed . High flow rates had several positive ef fects on epif aunal (drift) organisms colonizing the Hester-Dendy multiplate samplers. First, swift currents provided favorable conditions for the e s ta bl ishment of large popul a t ions of case-building, net-spinning midge (i.e., Tanytarsus sp.) and caddisfly larvae (i.e., Hydropsyche orris) that rely on water flow to satisfy their filter-feeding requirements. Second, the heavy rainfall that led to high discharge rates in the June to September period undoubtedly caused dislodging and drift of organisms from the tributary streams and littoral areas of the river. The enrichiucnt of the taxa list for artificial substrate samplers, 31 additional taxa, when compared with 1977, is indicative of the magnitude of this e f fect. It can also be noted that community diversity levels, as measured by H', are generally observed to be higher in 1978 than in 1977 due largely to the influx of new taxa in the drift. Just as Station B-1 was impacted unfavorably by the scouring effects on the infauna, it generally reflected the largest increases in epifaunal densities, relative to 1977, with increased flow r a t e t, . These natural variaticas in benthic community dynamics observed during 1978 can be consolidated with community structure information that has remained similar from 1976 through 1978 to serve as background against which plant operation effects can be evaluated. As in 1976 and 1977, t ub i f ic id s and chironomids dominated the infaunal collections, and na id id s , chironomids, hydro-psychids, and polycentropodids dominated the epifaunal (drift) collections. Also, as in prior years, seasonal 2.2-24

temperature variations were important determinants on com-munitir structure in that immature insect forms, especially midge and caddisily larvae, displayed greatest abundance in the epifaunal drift community during the warmer months of the year. Generally, the gross community structure charac-teristics d escr ibed in the 1976 and 1977 s tud ies are sup-ported, by, and similar to, 1978 data. The high flow rates observed in the river during 1978 significantly altered substrate stability at the upstream control (B-1) and down-stream control (C-1 and C-4) stations and prevented benthic organisms from becoming established. This natural situation is similar to the man-induced conditions at X-3 in the recirculation canal. Moderate to swift discharge currents le ad ing to substrate instability and t hermal enrichment at X-3 combine to create an unfavorable environment for benthic invertebrates. Statistical analysis of the infaunal results confirms that X-3 B-1, C-1, and C-4 were similar (a = 0.05) in 1978. The fact that Y-2 at the and of the discharge canal, and SL, the upstream control are similar may suggest that plant effects are confined to the immediate vicinity of the plant for infaunal populations, and that recovery is evident by the outlet of the discharge canal at Station Y-2. The data also suggest that the variation introduced by a significant natural event, such as unusually high discharge rates in the main river channel, produces effects that are similar to the conditions observed in the stations most heavily influenced by plant operation (X-2, X-a, Y-1) for both infaunal and epifaunal community components. As in past years, it appears that the current study design is adequt te to segregate and characterize natural population fluctuations and plant ef fects, both temporally and spa-tially, wi r.n in the study area. The large impact of high stream flows on the upstream and downstream contro) stations during 1978 makes it difficult to determine if plant-induced effects are sustained in the downstream infaunal benthic 276 184 ' 2.2-25

community. Percentage composition data similar to 1977 for C-1 and C-4 and the similarity of the discharge station (Y-2) to upstream ccatrol station (SL) seem to indicate that pl an t-i nd uced ef fects are not sustained downstream. Epi-faunal results ind ic ate that sim ilar effects on community dynamics are introduced by high discharge rates in the river I by plant ope rat io nal effects, although epifaunal densi-

  .es were generally significantly (a = 0.05) higher in the immediate vicinity (i.e., Stations X-2, X-3, Y-1) of the plant.

2.2.5

SUMMARY

1. Dominant taxa observed during 1978 in the vicinity of the Prairie Island Nuclear Generating Plant were Tubificidae ( Oligoch aeta ) and Chironomidae (Diptera) in the infaunal collections and Naididae (Oligochaeta),

Chironomidae, Hydropsychidae, and Polycentropodidae (Trichoptera) in the epifaunal collections.

2. Unusually high spring and summer discharge rates in the main river channel had major impacts on the abundance of infaunal organisms and the abundance and composition of epifaunal org anisms. These effects were most noticeable at B-1, C-1, and C-4, where high flow rates scoured the infaunal populations but contributed to increased colonization of the rig id Hester-Dendy substrates by filter-feeding taxa and drif t organisms.
3. As in the time period 1975-1977, data suggest that stations closest to the plant, and particularly in the intake forebays (X-2) and recirculation canal (X-3),

were different from other stations. The outstanding exception to this generalization is observed in the infaunal comparisons where X-3 is statisticully similar to t he main river s tations ( B-2, C-1, C-4) that had been 2.2-26

subjected to the natural scouring effects of high river discharge.

4. Although the denud ing of downstream control stations (C-1 and C-4) makes it difficult to assess the impact of plant operational effects on downstream community characteristics, it appears that the relative stability of infaunal collections at Y-2 from year to year for infaunal and epifaunal community components and their similarity to upstream control (SL) during 1978 are indicative of localization of plant effects to the immediate vicinity of the f acility.
5. Gross community characteristics (i.e., total densities and relative abundance of dominant taxa) described in this report are generally s im ilar to those presented in the 1975-1977 annual reports, indicating little overall change in the main constituents of the benthic macro-invertebrate community from year to year.

2.2-27

2.2.6 LITERATURE CITED Anderson, H.H., and D.M. Lehmkuhl. 1967. Catastrophic drift of of insects in a woodland stream. Ecology 49:198-206.

  • Beck, E.C, and W.M. Beck, Jr. 1969. Chironomidae (Diptera) of Florida: III. The Harnischia complex (Chironominae). Florida State Mus. Bull. 13:277-313.
  • Beck, W.M., Jr., and E.C. Beck. 1966. Chironomidae (Diptera) of Florida: I. Pentaneurini (Tanypodinae). Florida State Mus.

Bull. 10:305-379.

  • Beck, W.M. Jr., and E.C. Beck. 1970. The immature stages of some Chironomini (Chironomidae). Q.J. Fla. Acad. Sci. 33 (1) .
*Berner, Lewis.        1950. The mayflies of Florida.       Univ. of Fla.

Press.

  • Bo':s field , E.L. 1967. Fresh-water amphipod crustaceal.s of Glaciated North America. Canadian Field-Naturalist 72:55-77.
*Brinkhurst, R.O.        1964. Studies on the North American Aquatic Oligochaeta I: Naididae and Opistocystidae.            Proc. Acad.

Nat. Sci. Phila. 116:195-230.

*Brinkhurst, R.O.        1965. Studies on the North American Aquatic Oligochaeta II: Tubificidae. Proc. Acad. Nat. Sci. Phila.

117(4):117-172

*Brinkhurst, R.O., and B.G.M. Jamieson.            1971. Aquatic Oligochaeta of the world. Univ. of Toronto Press.
*Bryce, D. and A. Hobart.         The biology and identification of the larvae of the Chironomidae (Diptera).          Entomol. Gazette. 23.
*Burch, J.B.      1972. Freshwater sphaeriacean clams (Mollusca:

Pelecypoda) of North America. Biota of Freshwater Ecosystems. ID Manual 3, EPA. "Burks, B.D. 1975. The mayflies, or Ephemeroptera, of Illinois. Illinois Nat. Hist. Surv. Div. Bull. 26 (1) . [First published in 1953).

  • Claassen, P.W. 1931. Plecoptera nymphs of America (North of Mexico). Springfield, IL.
  • Claassen, P.W. 1940. A catalogue of the Plecoptera of the world.

Cornell Univ. Pub.

  • Crocker, D.W. 1957. The crayfishes of New York State (Decapods, Astacidae). NY St. Mus, and Sci. Serv. Bull. 355.
  • Edmunds, G.F. Jr., S.L. Jensen, and L. Berner. 1976. The may-flies of North and Central America. Univ. of Minnesota Press.
  • Hamilton, A.L., and O.A. Saether. 1969. A classification of the Nearctic Chironomidae. Fish. Res. Bd. Can. Tech. Rpt. 124.
  • Hardin, P.H., and C.E. Mickel. 1952. The stoneflies of Minne-sota. Univ. Minn. Exp. Sta. Tuch. Bull. 201.

276 i87 2.2-29

2.2.6 LITERATURE CITED (CONTINUED 1

  • Harmon, W.N., and C.O. Berg. 1971. The freshwater snails of central New York with illustrated keys to the genera and species. Search Agriculture 1(4).

Haynes, C.M. 1976. Macroinvertebrate Study. In. Prairie Island Nuclear Generating Plant Environmental Monitoring Program. 1975. Annual report prepared for Northern States Power Com-pany , Minneapolis , MN.. Hester, F.E., and J.S. Dendy. 1962. A multiplate sampler for aquatic macroinvertebrates. Trans. Amer. Fish. Soc. 91 (4 ) : 420-421.

  • Hilsenhoff, W.L. 1975. Aquatic a nsects of Wisconsin. Wisconsin Dept. Nat. Resor. Tech. Bull. 59.
  • Hiltunen, J.K. 1973. Keys to the tubificid and naidid Oligochaeta of the Great Lakes Region. (unpublished manuscript).
  • Hobbs, H.H., Jr. 1942. The crayfishes of Florida. Univ. Fla.

Pub. 3 (2) .

  • Hobbs, H.H., Jr. 1972. Crayfishes (Astacidae) of North and Mid-dle America. Biota of Freshwater Ecosystems. ID Manual 9. EPA.
  • Holsinger, J.R. 1972. The freshwater amphipod crustaceans (Gam-maridae) of North America. Biota of Freshwater Ecosystems.

ID Manual 5. EPA. Hoopes, R.L. 1974. Flooding, as a result of Hurricane Agnes, and its effect on a macrobenthic community in an infertile headwater stream in central Pennsylvania. Limnol. & Oceanemr. 19(5):853-857. Hynes, H.B.N. 1970. The ecology of running waters. Univ. Toronto Press, Toronto.

  • Jackson, G.A. 1977. Nearctic and Palaearctic Paracladopelma Harnisch and Saetheria N. gen. (Diptera: Chironomidae) Journ.

Fish. Res. Bd. Can. 34(9):1321-1359.

*Johannsen, O.A.        1934-1937. Aquatic Diptera - eggs, larvae, and pupae of aquatic flies. Entomol. Reprints. spec. Los Angeles, DA.
*Jorgensen, S.E., and R.W. Sharp.             1971. Rare and endangered mol-lusks (Naiads) of the U.S.         Bur,  of  Sport Fish. and Wildlife, Region 3.
*Kenk, R.      1972. Freshwater Planarians (Tubellaria) of North America- Biota of Freshwater Ecosystems. ID Manual 1. EPA.
*Klemm, Donald J. 1972. Freshwater leeches (Annelida:                 Hirudinea) of North America.        Biota of Freshwater Ecosystems.       ID Man 2al 8.

Knudsen, J.W. 1966. Biological techniques - collecting, preserv-ing and illustrating plants and animals. Harper and Row, New York. 525p. 276 i88 2.2-30

2.2.6 LITERATURE CITED (CONTINUED) Lewis, S.A., and D.D. Garriott. 1970. A modified Folsom plankton splitter for analysis of meter net samples. In Proceedings of the 24th Annual Conference of the Southeastern Association of Game and Fish Commissioners. 332-337.

  • Mason, William T., Jr. 1973. An introduction to the identifica-tion of Chironomid larvae. EPA.
 *Merritt, R.W., D.H. Ross, and B.V. Petersen.             1978. Larval ecology of some lower Michigan Black flies (Diptera: Simuliidae) with keys to the immature stages. Great Lakes Entomo.
*Pennak, R.W.      1953. Fresh-water invertebrates of the United States.

The Ronald Press Co., NY.

*Peterson, A.      1960. Larvae of insects (Coleoptera, Diptera, Neu-roptera, Siphonaptera, Mecoptera, Trichoptera), Part II.                Edwards Brothers, Inc., Ann Arbor, MI.
*Peterson, A.      1962. Larvae of insects (Lepidoptera and Hymenop-tera), Part I.      Edwards Brothers, Inc.       Ann Arbor, MI.
*Petersen, B.V.      1970. The Prosimulium of Canada and Alaska (Diptera:

Simuliidae) Mem. Entomo. Soc. Can. 69. Pielou, E.L. 1969. An introduction to mathematical ecology. John Wiley and Sons. New York.

*Roback, S.S.      1957. The imma".ure tendipedids of the Philadelphia area. Mono. Acad. Nat. Sc. . Phil. No.9.
*Roback, S.S.      1976. The immat ure Chironomids of the eastern United States:    I. Introduction and Tanypodinae-Coelotanypodini.               Proc.

Acad. Nat. Sciences of Philadelphia. 127(14):147-201.

  • Ross, H.H. 1944. The caddis flies, or Trichoptera, of Illinois.

Ill. Nat. Hist. Surv. Div. Bull. 23 (1) . Scarola, J.F, and A.J. Novotny. 1968. Folsom plankton splitter modified for enumeration of entomastraca. Limnol. and Oceanog. 13(1):195-196. Shannon, C.E., and W. Weaver. 1949. The mathematical theory of communication. University of Illinois Press. Urbana.

  • Stewart, P., and J.S. Loch. 1973. A guide for the identifica-tion of two subfamilies of larval Chironomidae: the Chirono-minae and Tanypodinae found in benthic studies in the Winnipeg River in the vicinity of Pine Falls, Manitoba in 1971 and 1972. Dept. Env. Fish. and Mar. Ser. Cent. Reg. Tech. Rpt.

No. CEN/T-73-12.

  • Teskey, H.J. 1969. Larvae and pupae of some eastern North Amer-ican Tabanidae (Diptera). Mem. Entomo. Soc. Can. 63.

Texas Instruments Incorporated. 1977. Benthic macroinvertebrate study. In Prairie Island Nuclear Generating Plant Environ-mental Monitoring Program. 1976 annual report prepared for Northern States Power Company, Minneapolis, MN. 97/ 2.2-31 L/O f

                                                                      'l b: n

2 . ?. 6 LITERATURE CITED (CONTINUED) Texas Instruments Incorporated. 1978. Benthic macroinvertebrate study. In Prairie Island Nuclear Generating Plant Environmental Monitoring Program. 1977 annual report prepared for NortheL. States Power Company, Minneapolis, MN.

  • Usinger, R.L. 1956. Aquatic insects of California. University of California Press, Berkeley, CA.
  • Walter, H.J., and J.B. Burch. 1957. Key to the genera of fresh-water Gastropods (snails and limpets) occurring in Michigan.

Mus. Zool. Univ. Mich. Cir. 3. Ward, H.B., and G.C. Whipple. 1959. Freshwater biology, 2nd ed. John Wiley and Sons, Inc. NY. Weber, C.I. 1973. Biological field and laboratory methods for measuring the quality of surface waters and effluents. Na-tional Environmental Research Center, Office of Research and Development, U.S.E.P.A., Cincinnati, OH.

  • Wiggins, G.B. 1977. Larvae of the North American caddisfly genera (Trichoptera). Univ. Toronto Press.

Winer, B.J. 1971. Statistical principles in experimental design. McGraw-Hill Co., NY. 191 p. Zo, Z. 1978. Zooplankton spin splitter. Deep-Sea Research, 25:571-576. 276 190 2.2-32

Figure 2. 2 -1. Macroinvertebrate Sampling Locations (Quantitative)

                                    ^

STuRCt0N LAKE .o# . SL~ *

                                  \

x-1 ANAL x \ 0 B-I - PLAMT stTE ,, ~

                                          ,3 y.i            '

MlHNESOTA WISCON51H ca. - N 0  %,

                                                          %2g
            ]              D[[m.-                        \,

e-Q ru 2.2-33 276 191

Figure 2. 2 -2. Total Densities (#/n 2) and Relative Abundance of Benthic Macroinvertebrates Collected by Petersen Dredge from Mississippi River near Red Wing, Minnesota, 1978

                    ""[STATIONB-1 A

c ,!fk; J sp

                 +

i t .: tw' i g, g u . s . w ae 'e

                      '~

STATION SL a - t b

  • w b

u, - t %' kk Ik Pr$ J f

  • A
  • J J A 5 0
  • M( 4 4 7O
                                                                                             /

Ql

                                                                                               /

2.2-34 )10

Figure 2.2-2. (cont)

                  "[ STATION X-1 p.c a e

F,- - 6.c a - I

                  .. x. :    -

4 w%*n STATION X-3 k l1 WM 2,' T -

                                                      ~9 ': ': T T ':

2.2-3s 276 193

Figure 2.2-2. (cort) STATION Y-1 g ) '

  • Ja I

l

4. t' -

k

                ,c        -

0

                                                  )          g STATION Y-2 a..       -

F t F: . h

          }r .. c 6o     -

7.' - J F w j j g ,

                                                  @% 7 w 276 194

Figure 2.2 -2. (cont) STATION C-1

                 ,,.m a r) , rir#

8,OS'

            ?

j ve r

                 . cco 2 . f4>G       -
                                     . s                              .        1  gg , . ,
                                              *     *
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               ': ^'          -                                                                              A
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2.2-37 276 lon/ s

Figure 2.2 -3. Benthic Community Diversity (d') as Collected by Petersen Dredge from Mississippi River near Red Wing, _ Minnesota, 1978 4 _ STATION B-1 2 NS NS , NS , E , NS B NS , 4 _ STATION SL 2 l l NS NS

  • NS
                 ,     ,          ,                   E              NS     ,

4 - STATION X-1 2 - NS l g NS g l l NS E l NS , 4 - STATION X-3 i 2 NS

                 ,     l     NS l         NS        l    g    NS    ,

h 4 STATION Y-1 W E 2 NS g , NS g l l NS g g NS , 4 SIGION Y-2 2 NS , , NS

                                  =    m      a  NS   _    l    g    NS 4        STATION C-1 2

I l NS NS NS , g , MS , l NS , 4 - STATION C-4 2  !

    ~

NS NS _ NS n M N NS NS J F M A M J J A S 0 N D

  • Samples lost MONE 2.2-38 2]b k lb

Figure 2.2-4. Total Densities (#/n )2 and Relative Abundance of Benthic Macr invertebrates Collected by Multiplate Artificial Substate Samplers f rom Mississippi Ei /er near Red Wing, Minnesota, 1978

                     , -3 T
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l. W .a Ns $4 NS S a J F M A M J J A S O 4 D MONTH 276 197 2.2-39

Figure 2.2-4. (cont) b 10 c-

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                        ] TUBIFICIDAE
                        ] TRICH 0PTERA
                        ] DIPTERA (NEMAT 0CERA)
                        ] NAIDIDAE
                        ] OTHERS fiOTE :       The relative abundance of each taxon presented in this figure does not reflect their actual densities relative to the logarithmic scale, but rathar, their percent ccm-position at each station as indicated by that portion of the bar comprised by each.

2.2-40

Figure 2.2-5. Benthic Community Di',ersity (H') as Collected by Multiplate Artificial Substrate Samples fron Mississippi River near Red Wing, Minnesota, 1978

              , STATION B-l 2       -
             ~

NS NS NS NS g NS NS NS , NS , q _ STATION SL 2 - t

            ~

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  • Only 2. replicates collected
       ** Replicate 2 lost cc 2.2-41

Figure 2. 2 -6. Mean Monthly Discharge at Lock and Dam #3 from Mississippi River near Red Wing, Minnesota, 1976-1978 52 - 48 - g 1976 ft - - - - 1977 44 - ' --- 1978 40 - li

                                          'g 36        -
                                                  \

I li 32 - 2 '

                                                                   /

3 '. x 28 -

=                                                         -

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TABLE 2.2-1. OCCURRENCE OF BE'iTHIC MACR 0 INVERTEBRATE TAXA COLLECTED BY PETERSEN DREDGE FROM THE MISSISSIPPI RIVER NEAR RED WING., MINNESOTA DURING 1978 LIFE STAGE (LS) LISTINGS USED FOR BENTH0S TABLES: 01 01 - Adult 05 - Immature 02 - Larvae 06 - Juvenile 03 - Pupae 10 - Nymph 04 - Egg 11 - Colony 12 - Undetermined 276 201 2.2-43

scRTHERei STATLS PCWER COMPANf g , 2. 2 -1 (cont) PRAIRIE ISLAND NUCLEAD GENERATING PLA!4T MACRDINVERTEEDATE CCCURRENCE REPO7T PETErSIN CDEOGE SITE LOCATIC?4 CCCES: 1:B-1; 0:SL; 3:X-1 X-3; 4:Y-1.f-0; 5:C-1.C-4 FES MAP FAY JU'1 JUL SEP CCT NOV LS TAXA 103%5 10345 10345 10345 10345 10315 12345 12345 0 Ct.IDAMIA (TOTAL) 0 HYC00ZOA 1 H T C4 A ( LPIL ) 4 0 NEr1ATCD A ( TOT A L ) 1 NEMATCDA (LPIL) 034 10345 34 10345 1 345 0345 10345 10345 0 NEttaTC] A ( LPIL ) 4 0 ENOOTROCTA 0 EN00PROCTA 1 UENATELLA CRACILIS 4 11 UPNATELLA CRACILIS 1 45 4 34 34 34 34 4 0 OLIO 2 CHAETA (TOTAL) 0 NAIDICAE 1 NA!OICAE (LPIL) 34 1 4 5 35 5 34 1 5 1 5 0 TU3IFICIDAE 1 E7AUCHIURA SCWERDfI 34 0 4 [# 1 TUDIFICID AE ( LPIL) 034 10345 10345 1034E 1 345 10345 10345 10345 ([hE<g ha 0 HIRU31NE A ( TOTAL ) ' **** I O GLOSSIPHONIIDAE S$ C22y 1 FELCEDELLA STAGNALIS 3 3 0

 #*                 1         PLACC2DELLA (LPIL)                                           4 0      EPFLECELLICAE 1          :RPC;0ELLA (LPIL)                                            4 pg y 6 HICUJINEA (LPIll                               3
           '%d     0 GASTROPC3 A ( TOTAL )

(3%s 0 HTCRC2!IDAE (:AMNICOLIDAE) 1 it'NICC L A (LPIL) 3 0 PHfS;02E -

                                                                                                                                              ~

I ') 7HISA (LPIL) 1 3 CI2) O PLIU?O ERIDAE 1 [ss ) 1 STIICS ASIS ( LPIL ) 5 S~ 1 GAST70F00A ILPIL) 5 3 IEEOC[[g

    ,              O DIVAL.!A (TOTAL)                                                                                              SDE
    ~~             0      SPHAERIIDAE                                                                                              C[[KM])g

_) O SF.iAERIUM (LPIL) 3 - EI 1 SFiAEPIC:1 ( LPIL ) 3 5 23 5 0345 35 g3fh'E_ 1 FILIO!UM (LPIL) 5 5 23 35 5 SP:iAERIIDAE (LPIL) 3

         @        0 5

UNICNICAE U1:CN!C AE ( LPIL) 4 34 4 1 L74!CN!J A E (LPIL) 35 0 AP ACi.NIC A (TOTAL) DATE 03/01/79 0 FR05TIGMA1A PAGE NO 1 E03 3C31

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NORTHERt1 STATES PtNER COMPAt1Y TABLE 2.2 -1 (cont) PP1IPIE ISLAND h"UC LE AR GENERATIt!G PLANT MACRCItr.E RTEER ATE CCCURPEt:CE PEPORT PETER 0Ett CRECGE SITE LOCATICN CCDES: 1:D-1; 0:0L; 3:X-1 X-3; 4:Y-1,Y-0; 5:C-1.C-4 FEB MAR MAY JUN JUL SEP CCT NOV LS TAXA 12345 123'45 10345 12345 12345 10345 10345 10345 0 OIPTEPA i:Et1ATCCEPA (TOTAL) O CHACEC9IDAE O CH ACECRL'S FUNCTIFEhNIS 3 2 CHACCCRU3 ( LPIL) 2 34 23 45 10 0 CEPATCF030NIDAE O PALFCMilA (LPIL) 34 g _ 0 CER ATOFCCOMIC AE ( LPIL) 1234 34 0345 13 0345 10345 10345 .. O CHIRON0!!1DAE 2 CHIRONOMUS ( LPIL ) 034 10345 0345 1034 34 034 2345 12345 2 CPTHCCLADIUS ( LPIL) 1 1 35 *- 0 CRYPTCCHIRCNOMU3 (LPIL) 34 10345 1034 10345 1 34 0345 10345 10343 2 CRICGTCFUS ( LPIL) 4 45 4 1 2 TANYTAPSUS ( LPIL ) 4 13 0 1 34 34 34 3'5 3 2 OICEOTEt?DIPES ( LFIL) 3 3 34 3 0 45 3 5s- = - . N O FCLY FEDILUi1 ( LPIL) 1 5 4 1 345 1 345 135 1 345 1 5 ..-e-O ACLACEE!1rIA (LPIL) 34 103 5 034 04 ?9 03 034 12345 f 2 FRCCLADIUS ( LFIL) 034 10345 034 1034 24 034 103,5 10345 ' A 2 CCR rNO' EURA ( LPIL ) 5 5 '% 0% 2 F AR ACHIG ONOMUS ( LPIL ) 345 3. 3 0 3 W 2 GL)PTOTENDIFES ( LPIL ) 34 45 3 34 34 34 3%5 1 345 - 2 FH AENOFSECTP A ( LPIL ) 4 3 IW 2 E UKIE F F ERIE L L A ( LPIL ) 5 2 CCELOTAHtFLS (LPIL) 34 1234 34 3 23 0345 03 Up 2 STICTCCHIPCNOMUS ( LPIL ) 1 . , . 2 TANYPUS (LPIL) 23 0% 4 03 ( 0 iRI55CCLADIUS (LPIL) 1 5 _ 2 PSECTFCCLADIUS ( LPIL) 1 0345 4 34 5 1 45 1 WJ N 2 2 2 CDELDICHIRCNOMUS PAP AT E.t:DIFE S "A" PARATEt:DIPES ( LPIL) 1 04 4 5 03 d]% ' 2 PAR CLA00FELMA ( LPIL) 1 1 34 1 34 345 345 O 2 PCTTHJTIA 1 1 [' 2 2 El DCCHIUhCtTJ3 (lP!L1 MONCDIAMESA (LPIL) 1 1 5 W N 8 2 S AETPEPI A ( LPIL) 5 C 2 [PICOCCLADIUS 3 1 4 M 2 PAR A LAUT E RICFt4IE L L A 1 3 CHIRCN0!!IDAE (LPIL) 3 0 5 1 345 34 0 45 135 2 C H IF C:,0:1!C AE ( LPIL) 1 1 0 SIMULIIDS. 2 SItL _iUtt (LPIL) 4 0 ECTCrRCCTA (TOTAL) DATE 03/01/79 FAGE NO 3 ECS W1

NORTHERN STATES PCWER CCttPANY TABLE 2. 2 -1 (cont) PRAIRIE ISLAND t?) CLEAR GEtJEPATit G PLAT 1T ttACROINVLRTELPATE OCCURRENCE REPOPT PETERSEN CPEDGE SITE LCCATION CODES: 1:B-1; 0:SL; 3:X-1.X-3; 4:Y-1.Y-C; 5:C-1.C-4 FEB MAR MAY JUN JUL SEP CCT NOV LS TAXA 10345 12345 10345 12345 12345 1 343 12345 1 345 0 LOPHCFCDICAE 1 FECTINATELLA MAGNIFICA 3 S PECTIN ATE LLA MAGt'IFICA 2 0 PLUMATELLIDAE 1 FLUMATELLA REPENS 34 g 11 PLUMATELLA PETENS 345 5 5 5 . 8 FLUMATELLA PEPENS 3 M 0 CRISTATELLIDAE 1 8 CRISTATE LLA t'UCE00 4 34 234 2 45 11 ECTCFRCCTA ( LFIL) 4 CATE C3/21/77 FACE UO 4 E00 3001 e m k # a

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2 TABLE 2.2-3. MACR 0 INVERTEBRATE DENSITY (#/m ) AND REL\TIVE ABUNDANCE FROM SAMPLES COLLECTED BY PETERSEN DREDGE NEAR RED WING, MINNESOTA DURING 1978 LIFE STAGE (LS) LISTINGS USED FOR BENTH0S TABLES: 01 - Adult 05 - I- ,ture 02 - Larvae 06 - J. nile 03 - Pupae 10 - Ny1;h 04 - Egg 11 - Colony 12 - Undetermined 276 207 2.2-49

tiCRTHEPt1 ST ATES POWER CC"PAttf Table 2. 2 -3 (cont) PRAIPIE ISL At:0 tlUCLE AR GENEPATIt:3 PL ANT MACROItP.ERTECDATE DENSITY (nut l0ER PER SQUARE METER) i'ETERSEN CPEOGE WITHIN-SITE REPORT FEBRUARY REL TAMA STURGEON LAKE LS X S.E. 40% 2 0 NEMATCOA . 3TAL) 14.35 14.35 -1.07 0.5 1 NEttATCC A ( LPIL) 14.35 14.35 -1.00 0.5 0 OLIOCCHAETA (TOTAL) 2 Sf.l . 0 3 '801.03 -1.00 97.3 0 TLTI F ICID AE 1 TL'CIFICIDfE (LPIL) 0031.23 08:1.03 -1.00 97.3 g 0 DIP f E P A net",TOCER A ( TOTAL ) 64.59 64.59 -1.00 0.2 . O CHIPC!0!!IDAE M 0 CHIPC!!MUS ( LPIll 61.00 61.00 -1.u0 2.1 1 2 PRCCLA01US ( LPIL) 3.59 3.59 -1.00 0.1 U1 O 0060.17 OHO.17 -1.00 100.0 TOTAL DIVERSITY (H PRIMEI 0.00 0.00 -1.00 DIVERSITY (J PPIt:E l 0.14 0.14 -1.00 tr#SER OF TAXA 4 4

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fl0PTHERif STATES PCUER CCt1 PANT Table 2.2-3 (cont) FRAIRIE IStaND tUCLEAR GEt:EPATIin FLAtlT t1ACROItiVERTEC? ATE DENSITY ( t1U"2 E s PE R SQU AP E t'E T E R ) PETERSEtt DREOGE WITHIti-SITE REFC7T INTAKE FEBRUARY LS TAM 4 X-1 X-3 - REL X S.E. 40% 3 4 0 NEttATCDA (TOTAL) 35.83 0.0 17.94 17.94 0.8 1 NCt1ATC?A (LPIL) 35.C3 0.0 17.94 17.94 0.8 0 OLICCCH.* ETA (TOTAL) 3S57.19 30.09 19 % . ' 1912.45 84.8 0 NAIDIDAE 1 tiilDIDAE (LPIL) 154.09 0.0 77.14 77.14 34 0 T L'0IF ICID AC 1 E 7 ANCHIU7 A SO',JE RBYI 64.59 17.94 <+1.26 23.30 1.8 g 1 TUDIFICIDiE ( LPIL ) 3633.32 14.35 1806.34 1811.03 79.7 . O EPHE!!ERCPTERA (TUTAL) 10.76 0.0 5.30 5.33 0.2 M 3 E rHEf'ERID AE l 10 HEX *.CENIA (LPIL) 10.76 0.0 5.33 5.33 0.0 0 DIPTERA I:EttaTCCEPA (TOTAL) 635.09 0.0 317.55 317.55 13.8 0 CHACCC7IDAE 2 CHfCE0"US FUNCTIFENtiIS 10.76 0.0 5.33 5.33 0.2 3 CERATCFOGC4IDAE O P A L FCit f I A (LPIL) C6.88 0.0 48.44 43.44 0.1 0 CHIrCN0!!1DAE 2 CHIRONC!tUS (LPILi 109.17 0.0 64.59 64.59 0.8 0 CRIPTCCHIRONCt'US ( LPIL) 136.35 0.0 63.17 e8.17 3.0 2 ADLt EE C!111 A (LPIL) 25.12 0.0 12.56 12.56 0.5 2 FPCCLASIUS (LPIL) 004.52 0.0 102.06 100.26 4.5 0 GL)PTOTEt:3IFES ( LPIL ) 3.59 0.0 1.79 1.79 0.1 2 COELOT ANYrUS ( LPIll 28.70 0.0 14.35 14.35 0.6 0 ECTorROCTA (TOTAL) 14.35 0.0 7.18 7.16 0.3 0 LCrHCFCDIDAE 1 PEC T IN.* T E LL A ttAGt1IF IC A 3.59 0.0 1,79 1.79 0.1 0 P LU*l A T E L LID A E 1 PLUMATEILA FErENS 10.76 0.0 5.33 5.33 0.2 N

     , TOTAL                                                       4553.03          30.09          2000.73  260.49 100.0 DIVEPSITY (H PRit.El                                            1.33          0.33             0.83    0.50 DIVERSITY ( J FR1t'E )                                          0.16          0.33             0.35    0.01 NUTTER OF TAXA                                                                    2              15 5

M @ 15l80806d

NO9THERN STATES PCWEP CCf1 PANT Table 2.2-3 (cont) PRAIRIE ISLAPO NUCLEAR CENEPATING PLANT t1ACPOINVEPTEC9 ATE DENSITY ( NU!'C E P FE R S'3U '.P E tie T E R ) FETERSEN DCECGE WITHIN-SITE PEPC9T DISCHARGE FCRUARY LS TAVA Y-1 Y-2 - PEL X S.E. AB% 5 6 0 net 1 ATCD A ( TOTA L ) 17.94 7.18 10.56 5.33 0.3 1 t1E t1ATCD A (LPIL1 17.94 7.18 'M 10.56 5.33 0.3 0 EN00TPOCTA 10.76 0.0 5.33 5.33 0.1 0 ENOCPROCTA . 1 U'NATELLA C9ACILIS 10.76 0.0 - 5.33 5.33 0.1 0 OLICOCHf ET A ( TOT AL 1 6000.87 1973.45 ,,. 3903.16 0014.71 94.6 0 N\IDIDAE 1 NAIDIDa.E (LPIL) 118.41 7.18 _ 60.79 55.60 1.5 0 TUDIFICIDAE W-1 EPtNCHIUDA SCWERBYI 3.59 3.59 - ' 3.59 0.0 0.1 1 TUCIFICIDAE (LPIL) 58!0.87 1960.63 3901.7S 1959.10 93.0 , O At1PHIFCO A ( TOT AL 1 3.59 0.0 , 1.79 1.79 0.0 N 0 HYALELLIDAE '. I 1 HfALELLA AZTECA 3.59 0.0 a ' 1.79 1.79 0.0 0 0 E rH E t!EP C PI E D A (TOTAL) 0.0 10.76 5.33 5.33

                                                                                                            %.                                0.1 0

10 E FHE!!E RIDf E HEX'.CENIA (LPIL) 0.0 10.76 M# 5.33 5.38 0.1 kg 0 DIPTER A NEttATCCERA ( TOTAL ) 340.87 61.00 000.93 139.94 4.8 0 CEPATorC00NTD/E 2 PAlrCit y I A (LPIL) 0.0 10.76 A 5.33 5.33 0.1 0 CHIR C':OttID AE DN 2 0 2 CHIPCNCitUS ( LPIL) CRY PTCCHIRON0!!US ( LPIL ) TANYT ARSL'S ( LPIL ) 53.00 036.01 7.18 7.18 7.18 0.0 h]y] h 30.50 101.99 3.59 23.30 114.02 3.59 0.7 0.9 0.1 2 JP L/ CES't rI A ( LPIL ) 0.0 08.70 Ar J 14.35 14.35 0.3 2 FFCCL/ 01US ( LPIL ) 39.47 0.0 19.73 19.73 0.5 2 GLirTOTENDIPLS ( LPIL) 3.59 0.0 1.79 1.79 0.0 2 CCELOT*N1rUS tLPIL) 0.0 7.18 3.59 3.59 0.1 N 9 ECTCrPCCTA (TOTAL) PLUMATELLIDAE 3.59 0.0 1.79 1.79 0.0 y 0 1 PLUt?ATELLA REFENS 3.59 0.0 1.79 1.79 0.0 CN TOTAL 6379.61 2050.39 4015.99 0163.61 103.0 N DIVERSITY ( H FPIt'E l 0.54 0.43 0.43 0.C6

   -   DIVERSITY (J PPIt:E1                                            0.19            0.16                                  0.17     0.02 g   NUTTER OF TAXA                                                      10             10                                    16

NORTHERN STATES PCWER COMPANY Table 2.2-3 (cont) PRAIRIE ISLAND NUCLEAR GENERATING PLANT MACR 0 INVERTEBRATE CENSITY (NUMBER PER SQUARE METER) PETERSEN DPEDGE WITHIN-SITE REPORT MARCH B-1 - REL L5 TAXA X S.E. ABX 1 0 NEMATODA (TOTAL) 32.29 32.29 -1.00 0.3 1 NEMATODA ' LPIL) 32.29 32.29 -1.00 0.3 0 ENDOPROC1, 10.76 10.76 -1.00 0.1 0 Et00FROCTA 11 URNATELLA GRACILIS 10.76 10.76 -1.00 0.1 0 OLIGOCHAETA (TOTAL) 9878.00 9878.00 -1.00 94.2 0 NAIDIDAE 1 NAIDIDAE ILPIL) 14.35 14.35 -1.00 0.1 0 TUDIFICIDAE 1 TUBIFICIDAE (LPIL) 9363.65 9863.65 -1.00 94.1 0 ARACHNIDA ( TOTAL) 7.18 7.18 -1.00 0.1 0 FR0 STIGMATA bJ l HYDRACARINA (LPIL) 7.18 7.18 -1.C0 0.1 ', O ISOFCDA (TOTAL) 0 ASELLIDAE 7.18 7.18 -1.00 0.1 g (n 1 ASELLUS ( LPIL) 7.18 7.18 -1.00 0.1 LJ 0 EPHEMEROPTERA (TOTAL) 28.70 28.70 -1.00 0.3 0 CAENIDAE 10 CAENIS (LPIL) 3.59 3.59 -1.00 0.0 0 EPHEMERIDAE 10 HEXAGENI A ( LPIL) 25.12 's"sk" 25.12 -1.00 0.2 0 DIPTERA NEMATOCERA (TOTAL) 520.27 520.27 -1.00 5.0 0 CERATCPOGONIDAE pf 4-2 CLRATOPOGONIDAE ( LPIL) 28.70 g wsCI 28.70 -1.00 0.3 0 CHIRONOMIDAE 2 CHIRONOMUS (LPIL) 86.11 se- , 86.11 -1.00 0.8 2 CRYPTOCHIRONOMUS ( LPIL) 229.64 - 229.64 -1.00 2.2 2 TANYTARSUS ( LPIL) 3.59 3.59 -1.00 0.0 2 POLYPEDILUM (LPIL) 14.35 gY$ 14.35 -1.00 0.1 2 ABLABESMfI A ( LPIL) 10.76 ~~. jid 10.76 -1.00 0.1 2 FRCCLADIt's I LPIL) 10.76 10.76 -1.00 0.1 I ') 2 COELOTANYPUS ( LPIL) 78.94 78.94 -1.00 0.8

   *sJ    Z       STICTOCHIRONOMUS ( LPIL)                  7.18                                         7.18 -1.00   0.1

(;S. 2 TRISSOCLADIUS ( LPIL) 25.12 25.12 -1.00 0.2 2 PSECTPCCLADIUS ( LPIL) 3.59 3.59 -1.00 0.0 2 PAR ATENDIPES ( LPIL) 10.76 [' 10.76 -1.00 0.1 I\ =) POTTHASTIA 2 7.18 <<) 7.18 -1.00 0.1 2 ENDOCHIRONOMUS ( LPIL) 3.59 ' '~ 3.59 -1.00 0.0 TOTAL 10484.33 10484.33 -1.00 100.0 DIVERSITY (H FRIME) 0.49 0.49 -1.00

        . DIVERSITY (J FRIME)                               0.14                                         0.14 -1.00 tA#EER OF TAXA                                        22                                          22 DATE           03/14/79 PACE NO                 3

NORTHERN STATES POWER CCMPANY Table 2. 2 -3 (cont) PRAIRIE ISLAND NUCLEAR GENEPATING PLANT MACROItWERTEERATE DENSITY (tM3ER PER 5 2UARE METER) PETERSEN DREOGE WITHIN-SITE REPORT LS TAXA STURGEON LAKE - RIL 2 X S.E. AB : 0 NEMATCDA (TOTAL) 14.35 1 NEMATCDA (LPIL) 14.35 -1.00 0.6 14.35 14.35 0 OLIGCCHAETA (TOTAL) -1.00 0.6 0482.96 r

                                                                                          ~ '

2480.96 0 TUDIFICIDAE '

                                                                                                                -1.C0  95.7 g--

1 TUSIFICIDAE ( LPIL) 0452.96 0 DIPTERA NEMATOCERA (TOTAL) 24S2.96 -1.00 95.7 96.e3 96.E3 N O CHAC20RIDAE -1.00 3.7

  • 2 CH ACBCPUS ( LPIL ) 3.59 M 0 3.59 -1.00 0.1 CERATCFCGCNIDAE g 2 p.

CERATOPCSCNIDAE ILPIL) 3.59 A 0 CHIECN0ftIDAE 3.59 -1.00 0.1 2 CHIPCNOMUS ( LPIL) 57.41 Q. %. 2 CR YPTCCHIRONC."US ( LPIL )

  • 57.41 -1.00 2.2 7.18 2 ABLAEESMYIA (LPIL) 7.18 -1.00 0.3 1 0. 76 2 FFCCLADIUS ( LFIL) 7.18 -

dh 10.75 -1.00 0.4 2 7.18 -1.00 0.3 COELOTANYFUS (LPIL) 7.18 - 7.18 -1.C0 0.3 TOTAL 2594.19 DIVERSITY (H PRIME ) ggg.yp3. 2594.19 -1.00 100.0 DIVERSITY (J FRIME) 0.37 . *hn 0.37 -1.00 0.17 " 0.17 t & eEP OF TAXA 9

                                                                                                               -1.00 EDTTCri TYPE 9

D NO ABOVE CCMPUTED USING SAMFLE IDS 4091 4092 4093 N DATE 03/14/79 N PA3E NO 6 7 T6% AQUA 9/28/77 N

NORTHERN STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT Table 2.2-3 (cont) MACR 0 INVERTEBRATE DENSITY (NLt*BER PER SQUARE METER) PETERSEN DREDGE WITHIN-SITE REPORT INTAKE MARCH 7,x, X-1 X-3 - REL O 4 X 3.E. AB% 0 PLATYHELM1NTHES (TOTAL) 14.35 0.0 1 TURBELLARIA-(LPILI 14.35 7.18 7.18 C.3 0.0 0 NEMATCDA (TOTAL) 28.70 7.18 7.18 0.3 3.59 1 NEMATODA ( LPIL) 28.70 16.15 12.56 0.7 3.59 16.15 0 OLICOCHAETA (TOTAL) 3645.50 21.53 12.56 0.7 0 TUDIFICIDAE 1833.51 1811.98 84.0 1 TUBIFICIDAE (LPIL) 3645.50 21.53 0 HIPUDINEA (TOTAL) 0.0 1833.51 1811.98 84.0 3.59 6 HIRUDINE A ( LPIL) 0.0 3.59 1.79 1.79 0.1 0 ARACHNIDA (TOTAL) 3.59 1.79 1.79 0.1 0.0 g 0 PR0 STIGMATA 1.79 1.79 0.1 e 1 N HrDRACARINA (LPIL) 3.59 0.0 I O DIPTERA NEMATOCERA (TOTAL) 617.15 1.79 1.79 0.1 25.12 321.13 O CERATOROSONIDAE 296.02 14.7 2 CERATOPOGONIDAE (LU 43.06 0.0 0 CHIRONCMIDAE 21.53 21.53 1.0 2 CHIRCNOMUS (LPILI 46.65 0.0 2 CRYPTOCHIRONCttUS (LPIL) 226.05 23.32 23.32 1.1 0.0 2 TANYTARSUS (LPIL) 113.02 113.02 5.2 0.0 21.53 10.76 2 DICROTENDl PES ( LPIL) 7.18 0.0 10.76 0.5 2 ABLABESMYI A ( LPIL) 3.59 3.59 0.2 7.18 0.0 2 PRCCL ADIUS ( LPIL ) 243.99 0.0 3.59 3.59 0.2 2 PARACHIRONOMUS ( LPILI 3.59 121.99 121.99 5.6 0.0 2 COELOTANYFUS ( LPIL) 39.47 1.79 1.79 0.1 0.0 3 CHIRONOt1ID 4E ( LPIL ) 0.0 3.59 19.73 19.73 0.9 1.79 J.79 0.1 TOTAL 4309.29 53.82 2181.55 DIVERSITY EH PRIME) 1.00 1.44 2127.73 200.0 DIVERSITY (J PRIME) 0.32 1.22 0.22 0.91 NUMDER OF TAXA 12 5 0.62 0.30 BOTTOM TYPE D 15 N ABOVE COMPUTED USING SAMPLE IDS CN 4101 4102 4103 4111 4112 4113

  'N
  ~                                                                    DATE     03/14/79 FACE NO         9 Q                                                                    T600AOUA  9/08/77 i

NORTHERN STATES POWER COMPANY PRAIRIE ISLAND h"JCLEAR GENERATING PLANT

  • ttACPOINVERTEERATE DENSITY (NUM3ER PEP SQUARE METER )

PETERSEN CREDGE WITHIN-SITE REPCRT DISCPARGE MARCil LS TAXA Y-1 Y-2 - REL 5 X S.E. AB% 6 0 NEMATCDA (TOTAL) 1 NEMATCO A ( LPIL ) 68.17 3.59 35.2S 68.17 3.59 32.29 1.0 0 EtOOFROCTA 35.83 32.29 0 Et:DCPROCTA 10.76 7.18 1.0 8.97 1.79 0.2 11 URNATELLA GRACILIS 10.76 7.18 0 OLICOChAETA (TOTAL) 2913.53 8.97 1.79 0.2 0 NAIDIDAE 4187.30 3550.41 636.CS 95.8 1 0 NAIDIDAE ( LPIL) TUDIFICIDAE 0.0 61.00 Qt 30.50 30.50 0.8 1 TUSIFICIDAE ( LPIL) 2913.53 4126.30 0 EPHEMEPCPTERA (TOTAL) 3519.91 606.39 95.0 0 EPHEMERIDAE 0.0 17.94 ,s. w N  %,,- 8.97 8.97 0.2 10 HEXAGENIA LIMBATA 0.0 7.18 g 10 HEXAGENI A (LPIL) 3.59 3.59 (n g 0 DIPTERA NEMATOCERA (TOTAL) 0 0.0 125.58 10.76 78.94

                                                                                          $9 MET /

5.38 5.33 0.1 0.1 CERATOFOGONIDAE 102.26 23.32 2.8 O 2 DTg CERATCP030'JIDAE ILPIL) 0.0 21.53 0 CHIRONOMIDAE -;,5 g 10.76 10.76 0.3 2 CHIRON0t US ( LPIL ) 2 CR f PTCCHIRONCt'US ( LPIL ) 50.23 14.35 N4 32.29 17.94 2 CRICOTOPUS ( LPIL) 17.94 3.59 14.35 0.0 DUS} KC.W~ 16.15 1.79 0.9 0.4 2 ABLABESMfIA (LPIL) 1.79 1,79 0.0 0.0 17.94 2 2 FROCL ADIUS ( LPIL) 10.76 7.18 g 'D 8.97 8.97 8.97 0.2 2 P/ R ACHIRONOMUS ( LPIL ) GLYPTOTENDIPES ( LPIL) 3.59 39.47 0.0 gD-% t 1,79 1.79 1.79 0.2 0.0 2 COELOTANYFUS ( LPIL) 0.0 0.0 Ill2D 19.73 19.73 0.5 3.59 i;;y 1.79 1.79 0.0 TOTAL 3118.04 4294.94 DIVERSITY (H FRIME ) 3706.49 533.45 100.0 DIVERSITY (J FRIME ) 0.63 0.31 0.47 0.02 0.11 0.16 NUMEER OF TAXA 9 0.17 0.06 N BOTTOM TYPE O 12 15 N ABOVE COMPUTED USIN3 SAMPLE IDS 4121 4122 4123 4131 4132 4133 N s DATE 03/)4/79 PACE 140 12 T600AOUA 9/08/77

111 15 50 0, 4 25110013 0 LZ EB 000 08 80 01 00000000 0 RA 9 9 0 1 99 5 59 93 69979999 731

                             .       550              02           27             75          75597775                           500 E          . .                             .                                 .

330 07 71 11 03381113 000 S 0 0 2 1 3 4 4 4 999 96 69 93 69979934 5562 555 59 97 75 72597739 4101 X 333 35 51 12 02381157 700 7 7 8 13 1 6 9 9 0 5 5 6 957 717

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                         -      8773                 33           30             04         15770334                            800 l                 C                                    8 3

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E M C 5 5 6 5 5 5 5 1 r 4 E P A T N A U Q S R 3 4 g g 1 L E P P 4 G R N E I S ) S T M

                                                                                     )           L Y   A     U                                                                                                                                   D L           I              ) )                          I23 N  R     N                                                                           A           P              LL)                             45 A   E     (                                                                           T           L              IIL                          E11 P   N                                                S                                O           (   )     )    PPI                          L44 P  E      Y                                          I                                T      )        LL) LLP                                 P C  G      T                                          L            )                   (      LSIIL(                    ( L                    1 t

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( S E E E ) RT L N MPU G 0 IE ( ( 0 W L D Ll GO ) PC OMA OII ) ) N12 C C T Al T ( L LOESRUISNDD EE I45 P U E R TI A( TEA ( TAUILfUONA MM S11 N T O OP AL AAT ADMHIMIREL II U44 S E T A T S D tr A L S A R B E T R E G D E R D P E R E A X A TL ( ( AACRAAII TLADDOESMIOCDSDITC ACETIITAUE MNCEEAHOO TOTECC( DLNOOT PBLCIS DDOPNHFFALEACI YLLORYI OORORCIIDLSRRHRODRALR IL NRPYACAPS RR PPA HJA ( ( TE X D E T U l 8 e T P P N I E V N I S T TTPDUODDOEAEI CCPAPPGT YYFY M AACN GUUPS TH TTOT O R E N E - MMDE ITTOA PC II C E I I S N EEN L S I SSRM 3 H R 0 R I NNE O I D LRREO E T I R E H AEEBT V R A C T T TVV T T 0 t O R A S f" N P M E P I W L 01001001O010022222222 1 OIIUO TDOF B B A [f' 3 h

  • f uJ-J NNg N"(y

NORTHERN STATES PC'l:R

                           . CC."PANY FRAIRIE ISLAND i:UCLEAP GENERATING PLANT Table 2.2-3         (cont)

MACROII."/ERTEERATE CENSITT (NUM ER FER SOUARE METER) PETERSEN CRE00E y WITHIN-SITE REPORT A 4.

                                                    }{Ay LS        TAXA                                B-1                                              h              -

PEL 7 p. 'sd- X S.E. 40% 0 OLIGCCHAETA (TOTAL) 1345.53 0 TU3IFICICAE '-

                                                                                              '                  1345.53 -1.C0  95.7 1     TU3IF ACIDAE ( LPIL)                 1345.53 0 DIPTERA NEMATOCERA (TOTAL)                 17.94
                                                                                          .f                     l?;5.53 -1.00  93.7 0     CHIRCNCMICAE                                                             s'-

N 17.94 -1.00 1.3 2 CRYPT 0;HIRCNOMUS (LPIL) 17.94 Y;, D g 17.% m g TOTAL DIVERSITY (H FRlME ) 1363.47 4.. ;A>' -1.00 1.3 CD DIVERSITY fJ FRIME) 0.11 s%gy:,hg \N,y 1353.47 0.11

                                                                                                                         -1.00 100.0 0.11                                                                -1.00 NUMBER 0: TAXA BOTTOM TfPE 2      -' k, )'\/h Y                                       0.11 -1.00 O

ABOVE CC"FUTE0 USING SAMPLE IDS 4161 4162 4163 DATE 03/14/79 PACE NO 2 T600iOUA 9/03/77 N N CN N

NORTHER?4 STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT Table 2.2-3 (cont) MACROINVERTEERATE LENSITY (tJL;MCER PER SOUARE METER) PETERSE!4 CREDGE WITHIN-SITE REPORT KiY LS TAXA STURGEON LAKE - REL X S.E. A3% 2 0 CLIGOCHAETA (TOTAL) 5819.87 0 TUDIFICIDAE E319.87 -1.C0 97.2 1 ERANCHIt'RA SO'.;ERBYI 7.18 1 TU3IFICIDAE ( LDIL) 7.18 -1.00 0.1 5810.70 5312.70 -1.00 0 EPHEMEROPTERA (TOTAL) 97.1 g 3.59 . 0 EPifEM2RIDAE 3.59 -1.C0 0.1 r0 10 tiEXAGENI A LIMSATA 3.59 1 3.5) -1.C0 0.1

  • 0 DIPTERA NEMATCCERA (TCTAL) 161.46 161.46 O CHIPONOMIDAE -1.C0 0.7 2 CHIRONCMUS ( LPIL) 50.03 2

E0.03 -1.00 0.3 CRYPTCCHIRONOMUS ( LPIL) 3.59 3.59 -1.C0 0.1 2 TANYTAR3US ( LPIL) 3.57 3.59 2 ACLACESMYIA ( LPIL) -1.00 C.1 14.35 14.35 -1.C0 2 0.2 FRCCLADIUS ( LPIL) 7.18 2 TAN 1 PUS ( LPIL) 7.18 -1.00 0.1 05.10 05.10 -1.C0 0.4 N 2 PSECTROCLADIUS ( LPIL) 17.94 17.94 -1.00 0.3 N 2 PARATENDIPES ('CIL) 7.18 7.18 -1.C0 0.1 3 CHIRCNOMIDAE ( LPIL) 32.09 30.09 -1.00 C.5 TOTAL 5584.93 N 5934.93 -1.00 1C0.0 DIVERSITY (H PRIME) 0.06 0.05 -1.C0

   ----*      DIVERSITY (J PRIME)                                 0.09                               0.C9 -1.00 N          NUMSER 0: TAXA                                        12                                 12 BOTTOM TYPE            O ABOVE COMPUTED USING SAMPLE IDS 4171        4170   4173
         't DATE      C3/14/79 E                                                                 PACE NO          4 T6CCAOUA   9/00/77

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  • 276 218 2.2-60

NORTHERN STATES PCEER CCMPANY PRAIRIE ISLAND HUCLEAR GENERATING PLANT Table 2.2 -3 (cont) MACROINV2RTELR ATE DENSITY (NUMDER PER SOUARE ME1ER) PETERSEN CREDGE WITHIN-SITE REPORT DISCHARGE MAY Y-1 Y-2 - REL-L3 TAXA X 5.E. AS% 5 6 0 CNIDARIA ( TOTAL) 14.35 0.0 7.18 7.18 0.2 0 HYDROZOA 1 H)CRA ( LPIL) 14.35 0.0 7.15 7.18 0.0 0 NEMATO3A (TOTAL) 17.94 7.18 12.56 5.33 0.3 1 NEMATODA ( LPIL) 17.94 7.18 _. . _ . I 12.56 5.33 0.3 0 ENDOPROCTA 10.76 0.0 ,, 5.3S 5.38 0.1 0 D00PRCCTA . 11 URt4ATELLA GRACILIS 10.76 0.0 5.33 5.33 0.1 0 OLIGOCHAETA (TOTAL) 2600.30 5296.02 E 0 TUBIFICIDAE b.,@ c 39SS.16 1307.86 91.1 1 TUBIFICID AE ( LPIL) 2680.30 5296.00 m ,y43 3903.16 1307.86 91.1 0 EPHE!1EROPTERA (TOTAL) 0.0 17.94 8.97 8.97 0.2 N 0 EPHEMERIDAE bj y 10 HEXAGENIA (LPIL) 0.0 17.94 wei 8.97 8.97 C.2 O I O DIPTERA NEMATPCER A (TOTAL) 509.51 204.52 W3 357.01 152.49 8.0 H O 2 CERATOPOGON?CAE CERATOP000NIDAE ELPIL) 0.0 57.41 pp - 23.70 28.70 0.7 0 CHIPONCMIDAE 2 CHIRONCMUS ( LPIt ) 21.53 3.59 f.e-=5* 12.56 8.97 0.3 2 CRYPTOCHIPONOMUS (LPIL) 136.35 78.94  % ?- 107.64 28.70 2.5 2 POLYPEDILUrl ( LPIL) 3.59 14.35 8.97 5.33 0.2 2 ADLACESMYIA ( LPIL) 3.59 14.35 8.97 5.33 0.2 2 PROCL ADIUS ( LPIL ) 190.17 10.76 [*,d 100.47 89.70 2.3 2 PARACHIRCNCHUS ( LPIL) 7.18 0.0 LG%"2 3.59 3.59 0.1 2 PHAENOPSECTRA ( LPIL) 28.70 10.76 . *r ,,, 19.73 8.97 0.5 2 COELOTANYPUS ( LPIL) 0.0 14.35 4 ,,,0 7.18 7.18 0.2 2 PSECTROCLADIUS (LPIL) 7.13 0.0 -i 3.59 3.59 0.1 m 2 2 GOELOICHIRCNOMUS PAR ATENDIPES ( LPIL) 7.18 104.05 0.0 0.0 h(P' M 3.59 52.03 3.59 50.03 0.1 1.2 N TOTAL DIVERSITY (H PRIME) 3232.87 1.10 5525.64 0.39 h

                                                                                               ' ~ ' ^

4379.c5 0.75 1146.39 100.0 0.35 N DIVERSITY (J PRIME ) 0.34 0.13 0.23 C.11 D NUMBER OF TAXA 14 11 17 BOTTOM T(PE O N ABOVE CCMPUTED USING SAMPLE IOS

  -.-                 4201          4202  4205      4211 g                   4212          4213 DATE     03/14/79 PAGE NO        10 T600ACUA  9/23/77

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NCRTHERN STATES PJuzR CcMPANY Table 2. 2.-3 (cont) PR AIRIE ISLAND NUCLEA9 CENER ATING PLANT MACPOINVERTEERATE DENSITY (NUMBER FER SQUARE METER) PETERSEN DREDGE WITHIN-SITE REPORT FJNE REL LS TAXA B-1 X S.E. ABX 1 0 NEMATODA (TOTAL) 10.76 10.76 -1.00 2.4 1 NEMATOD A ( LPIL ) 10.76 10.76 -1.00 2.4 0 OLIGOCHAETA (TOTAL) 391.10 391.10 -1.00 65.8 0 TU3IFICIDAE 1 TU3IFICIDAE (LPIL) 391.10 391.10 -1.03 85.8 bJ 0 DIPTERA NEMATOCEDA (TOTAL) 53.82 53.82 -1.00 11.3 0 CHIRONOMIDAE y 2 CHIRONOMUS ( LPIL ) 7.18 7.18 -1.00 1.6 m 2 CRYPTOCHIRONOMUS ( LPIll 10.76 10.76 -1.00 2.4 LJ 2 TANYTARSUS ( LPIL) 3.59 3.59 -1,00 0.3 2 FOLYFEDILUM ( LPIL) 3.59 3.59 -1.00 0.3 2 PROCLADIUS ( LPIL ) 10.76 10.76 -1.00 2.* 2 PARACLADOPELM A ( LPIL) 10.76 10.76 -1.00 2.4 2 Et,3CCHIRCNOMUS ( LPIL) 3.59 3.59 -1.C3 0.8 3 CHIRONOMIDAE ( LPIL) 3.59 3.59 -1.00 0.8 TOTAL 455.69 455.69 -1.00 100.0 DIVERSITT (H PRIME) 0.94 0.94 -1.00 DIVERSITY (J PRIME s 0.45 0.45 -1.00 NUMCER OF TAXA 10 10 BOTTOM TYPE O ABOVE COMPUTED USIttG SAMPLE IDS 4241 4242 4243 DATE 03/14/79 g' PAGE NO 2 T600AGUA 9/28/77 = ' ~ ~

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NORTHERN STATES POWER CCNPANY Table 2.'.-3 (cont) PRAIRIE ISLAND NUCLEAR GENERATINO PLAIT MACROINVERTEERATE DENSITY (NU::3ER PER S'AAPE t*ETER J DETERSEN CREOCE WITHIN-SITE REPCRT JUNE REL LS TAXA STURGEON LAKE - x S g, asx 2 .. 0 NEMATCDA (TOTAL) 2r.70 28.70 -1.03 0.5 1 NEMATCD A ( LPIll 23.70  ;% 1 23.73 -1.CG 0.5 0 OLIGOCHAETA (TOTAL) 4680.45 46S2.45 -1.00 77.4 0 TU 3IFICID AE 7 %, 1 TU3IFICIDAE iLPIL) 4682.45 #- 46B2.45 -1.00 77.4 0 DIPTEPA 14EMATCCERA (TOTAL) 1331.13 1331.16 -1.00 12.0 g 0 CE7ATCFOCON! die

 . 2     CE7ATOCCGCNIDAE ( LPIL )                    35.E3                                             35.E3     -1.00   0.6 N     O     CHIPCNOMIDAE I   2         CHIRONOMUS ( LPILI                     as3.51                         h.*      #

443.51 -1.00 7.4 2 CRYPTOCHIRONOMUS ( LPIL) 047.53 C'e r . 5a -1.00 4.1 2 ADLABESMYIA (LPIL) 61.00 <% 61.00 -1.C3 1.0 2 PROCLADIUS ( LPIL ) 190.17

  • 170.17 -1.00 3.1 0 TANYPUS ( LPIL) 343.04 N .-I 343.04 -1.03 5.8 0 ECTCFRCCTA (TO AL) 0 Lt.,7H C PODID A E 3.59
                                                                                        %                    3.59    -1.00   0.1 3         PECTINATELLA t1AGNIFICA                  3.59                 O*?                           3.59    -1.00   0.1 TOTAL                                            6045.92                        O                   6045.92     -1.03 100.0 DIVERSIT( (H PRIME)                                  1.36                  .. .                         1.36    -1.00 DIVERSIT r (J PRIME ;                                3.44                       '

O.44 -1.00 NUM*ER OF TAXA 9 9 BOTTCM TYCE O 4 N ABOVE CO:"PUTED USING S AMPLE IDS q 4251 4252 4053 D CATE 03/14/79 PAGE t:0 4 N T600%UA 9/08/77 Id N

NORTHERN STATES POWER COMPANf Table 9..9-3 (cont) PRAIRIE ISLAND NUCLEAR GINERATING PLAffT MACRCINVERTECPATE DENSITY (NUMBER PER SOUARE METER)

                      ?ETERSEN C9 EDGE WITHIN-S?TE REPORT INTAKE JUNE LS                                              y PEL TAXA                                              X-3                       X      S.E. AE%

N 4 q 0 NEMATCDA (TOTAL) ,5 7.16 14.35 7.18 0.4 1 NEMATCD A ( LPIll 21.53 CN 0 ENoorRcCTA 7.18 7.16 14.35 7.13 0.4 0.0 3.59 3.59 0.1 0 ENJCFRCCTA N 11 URNATELLA GRACILIS 7.18 0.0 3.59 3.59 0.' N O OLIGOCHAETA (TOTAL) 5274.49 17.94 2646.21 2623.27 63 1 0 NAIDIDAE 1 NAIDICAE ( LPIL) 0.0 3.59 1.79 1.79 0 . t, O TU3IFICIDAE 1 TU31FICID AE ( LPIL) 5274.49 14.35 2644.42 2630.07 68.1 0 HIRUJINE A ( TOT AL ) 3.59 0.0 1.79 1.79 3.0 0 GLOSSIFHCNIIDAE f 1 lELCLDELLA STAGNA.1S 3.59 0.0 1.79 1.79 0.0 tJ 0 BIVALVI A (TOTAL) 17.94 0.0 8.97 8.97 0.2 1 0 SPHAERIIDAE O 1 SFHAERIUM tLPILi 17.94 0.0 8.97 8.97 0.2 0 DIPTERA NEMATOCERA (TOTAL) 2292.79 101.99 1207.39 1035.40 31.1 0 CE9ATOFCGONIDAE 2 CER ATCFCGCNIDAE ( LPILI 73.94 0.0 39.47 39.47 1.0 0 CHIRCNCMIDAE

2 4 IJ 2 CHIRC'fCMUS ( LPIL ) 265.52 0.0 132.76 132.76 3.4 08 2 CRYPTOCHIRONC.1US ( L PIL ) 261.93 100.47 181.20 83.73 4.7 D:r. ,- 2 TANYTARGUS tLf!L) 0.0 3.59 1.79 1.79 0.0 QEN' ' 2 2

DICROTENDIPES ( LPIL) POLYPEDILU'1 ( LPIL )

0. t, 0.0 7.15 3.59 3.59 1.79 3.59 0.1 1.79 0.0 2 PROCLADIUS ( LPIL ) 1420.85 0.0 710.44 710.44 13.3
        ',             2
               #               PARACHIPCNCMUS ( LPIL )                50.23        0.0                    25.12   25.12   0.6
           ^?w.,       2       GLYPTOTENJiFES ( LPIL)                 17.94        0.0                     8.97    8.97   0.2 2       FHAENOPSECTRA ( LPIL)                    0.0        3.59                    1.79    1.79   0.0 2       TANf PUS ( LPIL )                     li9.40        0.0                    29.70   39.73   2.3 3     CHIPCNCMID AE ( LPIL)                    17.94        3.59
     .,' Fg            0 ECTOPROCTA ( TOTAL)                            3.59       0.0 10.76 1.79 7.18 1.79 0.3 0.0 0     PLU'tATELLIDAE 11        3LUMATFLLA REPENS                        3.59       0.0                     1.79    1.79   0.0 TOTAL                                          7621.09     147.11                  3334.10 3736.99 100.0 DIVERSITY (H PRIME )                               1.49       1.43                    1.46    0.03
  • OIVEPSITT (J PRIMZ ) 0.44 0.70 0.57 0.13 tAK AEn 0: TAXA 14 9 19
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NORTHERN STATES POWER cot 1PANY Table 2.2 -3 (cont) eRAIRIE ISLAND hUCLEAR GENERATING PLANT MACR 0 INVERTEBRATE DENSITY (HUMBER PER SQUARE METER) PETERSEN OREDGE WITHIN-SITE REPORT DISCllARGE JUNE REL LS TAXA Y-1 Y-2 X S.E. AB% 5 6 0 PLUMATELLIDAE 11 PLUMATELLA REPENS 3.59 0.0 1.79 1.79 0.0 TOTAL 4495.87 12759.22 8627.55 4131.63 100.0 DIVERSITY (H PRIME) 1.26 0.59 0.93 0.33 hJ DIVtRSITY (J PRIME) 0.39

  • 0.17 0.28 0.11 g NUMDER OF TAXA 16 16 24 g BOTTOM TYPE O OT 4 ABOVE COMPUTEU USING SAMPLE IUS 4281 4282 4283 4291 4292 4293 DATE 03/14/79 PAGE NO 14

( T600 AQUA 9/28/77 1 fr e w',, w s,

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NORTHERN STATES PCWER COMPANY Table 2.2 -3 (cont) PRAIRIE ISLAND UUCLEAR GENERATING PLANT MACROINVERTECRATE ( ENSITY (t."JMCER PER SQUARE METE'11 PETERSEN CREDCE WITHIN-SITE REFCRT gg REL LS TAXA C-1 C-4 X S.E. ACX 7 8 0 NEMATODA (TOTAL) 0.0 14.35 C, 7.18 7.18 2.5 1 NEMATCDA ( LPIL) 0.0 14.35 7.18 7.18 0.5 0 CLIGCCHAETA (TOTAL) 32.09 462.06 047.5' 215.09 E6.8 0 NAIDIDAE  %- 1 NAIDIDAE (LPIL) 0.0 7.18 '~ ' 3.59 3.59 1.3 0 TU31FICIDAE -

                                                                                                        .u 1     TU3IFICIDAE ( LPIL)                          32.29  455.69                     -           -

043.99 011.70 25.5 0 BIVALVIA (TOTAL) 0.0 3.59 1.79 1.79 0.6 0 SPHAEPIIDAE " 1 PISIDIUM ( LPIL) 0.0 3.59 1.79 1.79 0.6 N 0 DIPTER A NEMATCCERA ( TOTAL) 21.53 30.09 26.91 5.33 9.4

  • O CERATGTOCONIDAE - ..

N 2 CERATOPGGCNIDAE ( LPIL ) 3.59 0.0 w. 1.79 1.79 0.6 m 0 CH (R CSCMID AE OD 2 CRYPTCCHIRONOMUS ( LPIL) 10.76 25.12 17.9'+ 7.18 6.3 2 CRICOTCPUS ( LPIL ) 3.59 0.0 1.79 1.79 0.6 0 3 FOLYPEDILUM ( LPIL) CHIRCNOMIC AE ( LPIL) 3.59 0.0 0.0 7.18 D sW l.79 1.79 0.6 3.59 3.59

                                                                                           .          ,                         1.3 0 ECTOPROCTA ( TOTAL)                                0.0      3.59                             '

1.79 1.79 0.6 0 PLUMATELLIDAE 11 PLUMATELLA REFENS 0.0 3.59 M 1.79 1.79 0.6 TCTAL DM 53.80 516.68 Tg 085.05 231.43 100.0 DIVERSITY (H PRIME l 1.09 0.74 0.92 0.17 DIVERSIT( (J PRIME) 0.83 0.39 r>rals 0.61 0.00 NUMCER OF TAXA 5 7 7 20 SOTTOM TYPE O k N ABOVE COMPUTED USING SAMPLE IDS

    ,. j                    4301      4300     4303      4311 g                         4310      4313 DATE     03/14/79 N                                                                       PACE NO         17 N                                                                       T600ACUA  9/08/77

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40RTHERN STATES POWER COMPANY Table 2.2 -3 (cont) PRAIRIE ISLAND PfJCLEAR GENERATING PLANT

        '1ACR0INVERTEBR ATE DENSITY (tfJMBER PER SQ'JARE METER)

PETERSEN OREDGE WITHIN-SITE REPORT INTAKE JULY LS TAXA X-1 X-3 REL X S.E. AS% 3 4 0 NEMATODA (TOTAL) 14.75 10.76 1 NEMATODA (LPIll 12.56 1.79 2.1 14.35 10.76 12.56 1.79 0 E NDOPROCT A 2.1 0.0 3.59 1.79 0 ENDOPROCTA 1.79 0.3 11 URNATELLA GRACILIS 0.0 3.59 1.79 1.79 0.3 0 OLIGOCHAETA (TOTAL) 620.74 14.35 0 TUBIFICIDAE 317.55 303.19 54.0 TUBIFICIDAE (LPIL) ( 1 HIRUDINEA (TOTAL) 620.74 3.59 14.35 0.0 D*Z7 317.55 303.19 54.0 0 GLOSSIPHONIIDAE v.> 1.79 1.79 0.3 1 HELCCDELLA STAGNALIS 3.59 0.0 1.79 1.79 0 BIVALVIA (TOTAll 7.18 0.0 0.3 0 'PHAERIIDAE 3.59 3.59 0.6 5 SPHAERIIDAE ( LPIL) 7.18 0.0  % % 3.59 3.59 0 EPHEMEROPTERA (TOTAL) 0.6 3.59 3.59 3.59 0 CAENIDAE gb  % 0.0 0.6 10 0 CAENIS (LPIL) EPHEMERIDAE 0.0 3.59 b h+7 1.79 1.79 0.3 , 10 HEXAGENIA LIMBATA 3.59 0.0 bJ W 1 0 DIPTERA NEMATOCERA (TOTAL) 0 CHA030RIDAE 193.76 301.40 fV% 1.79 247.58 1.79 0.3 53.82 42.1 2 CHACLORUS ( LPIL) 3.59 0 0.0 U4T.f*'% 1.79 1.79 0.3 0 2 CERATOPOGONIDAE CERATOPOCONIDAE ( LPIL) 3.59 0.0

                                                                                          @~

0 CHIRONOMICAE (% 1.79 1.79 0.3 2 CHIR 0t10MUS ( LPIL) 2 CRYPTOCHIRONOMUS (LPIL) 21.53 53.82 0.0 179.40

                                                                                          - NT  g2/

10.76 10.76 1.8 2 116.61 62.79 19.8 TANYi ARSUS ( LPILi 2 DICROTENDIPES ( LPIL 3 0.0 0.0 39.47 Qg 19.73 19.73 3.4 2 DS! YPEDILL,tt i LPIL) 0.0 7.18 14.35 hg 3.59 3.59 0.6 2 ABLACESMYI A ( LPIL ) 28.70 0.0 (. . GoQ 7.18 14.35 7.18 1.2 2 PROCLADIUS (LPIL) 14.35 2.4 78.94 0.0 4 39.47 39.47 6.7 2 GLYPTOTENDIPES ( LPIL) 0.0 35.88 * 2 COE LOTANYPUS ( LPIL ) 17.94 17.94 3.0 3.59 0.0 '*% 1.79 2 PSECTROCLADIUS ( LPIL ) 1.79 0.3 0.0 7.18 3.59 2 PAR AC LAD O PE LM.\ tLPIL3 3.59 0.6 0.0 7.18 N 3 CHIRCNOMIDAE ( LPIL) 3.59 3.59 0.6 0.0 10.76 5.38

  @                                                                                                                     5.38   0.9 TOTAT.                                              843.00       333.69 DIVERSITY (H PRIME)                                                                                   588.45    254.75 100.0 1.57         2.08                                1.83 DIVERSITY () PRIME )                                                                                              0.25 0.55         0.71 N   NUr'BER OF TAXA                                           12           12 0.63      0.08 21 CC BOTTOM TYPE               O DATE       03/14/79 parm Nn              ;

LX 220 02 20 02 1 1, 6 110 0 0 317 1 1 3 1 5 3 8,4,.1 1 0 E8 000 04 40 00 0 00 000 0 0 004 0 0101000000 RA 9 9 779 93 39 96 8 86 889 9 9 399 9 929S321879 E

                     . 997 71 17 7, 5          3 12       137 7     7      7 5 4, 5

5 8 5 8 7,. 8,. 9 1 97 881 15 51 12 5 71 751 1 1 932 3 3336936781 5 0 0 1 4 1 5 5 9152 1 1 1 6 6 669 95 59 96 8 86 889 9 9 396 9 ) ;71 i  ?. 1879 557 7,. 6 6, 7 75 3 12 137 7 7 7,5 9 5 51 5 8',. e 9 1 9 7 x 221 18 81 I2 5 71 751 1 1 933 3 36369367S1 11 4 4 1 4 1 1 8 9152 2 2 3 6 6 Y, 3 w, . M$~ , , ' G y ,," ~- 4

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  • NhP

40RThERt1 STATES POWER COMPANY Table 2.2-3 (cont) PRA1RIE ISLAND NUCLEAR GENERATING PLANT 1ACR0 INVERTEBRATE DENSITY (NUMBER PER SQUARE METER) fy x; DETERSEN DREDGE ~ JITHIN-SITE REPORT DISCIUURGE JINLY dk "c

                                                                                                                .'s * ?    -

REL LS TAXA Y-1 Y-2 X S.E. ABZ 5 6 3 CHIRONOMIDAE (LPIL) 0.0 3.59 1.79 1.79 0.0 0 ECTOPROCTA (TOTAL) 0.0 7.18

  • 4 3.59 3.59 0.1 0 CRISTATELLIDAE ' '

8 CRISTATELLA MUCE03 0.0 3.59 1.79 1.79 0.0 11 ECTOPROCTA ( LPIL) 0.0 3.59 1.79 1.79 0.0 TOTAL 312.16 12960,14 ' 6636.15 6323.99 100.0 tJ )IVERSITY (H PRIME) 1.42 0.42 [Y 0.92 0.50 1, )IVERSITY (J PRIME) 0.64 0.11 hg 0.38 0.27 pg 4 UMBER OF TAXA 7 23 27 30TTOM TYPE O ABOVE COMPUTED USING SAMPLE IDS 4361 4362 4363 4371 4372 4373 DATE 03/14/79 PAGF NO 11 T600 AQUA 9/28/77 N w CN N ls 1 C'

e4 M 4 e4 mb e4 4 O @ e4 J, O o w c3 mmM m Cb m N e4 mmN N O 24 4 M 4 M o e4

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                                                                                               -4
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                            >=   44          O O >- O >< D E M O Z                       JW        22 w     O   2    C w          ww      >= W W ke >4 w >e a M w E w W 4 J >-                            G. D. 4     O

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                                                                                                   --mt O%

HHOH S z = M n0 M= z M m50zz--Ra 220 m Su O t' w 30. Jamw5 W ~ 5

  • E cssat 8 g g g g g 3 eMo MM .ooMMo NNoo Ogggg g 22/3 276 csw1

NCRTHERil STATES PCW' ER CCt1 patly Table 2.2 -3 (cont) FRAIRIE ISLAt4D t10 CLEAR GEt1EPATItt3 PLANT MACROIt1 VERTEBRATE DEt1SITY (tlUt DER PER SQUARE METER I PETERSEtt DREDGE WITHItJ-SITE REPORT ' SEPTEMBER LS TAXA I3- 1 R El. X 3.E. AB% 1 0 OLIGCCHAETA (TOTAL) 61.00 0 TUDIFICIDAE c 61.00 -1.00 77.3 1 TUDIFICID AE ( LPIL) 61.00

                                                                                        'hr 0 DIPTERA t1EMATOCERA (TOTAL)                       17.94                '

61.00 -1.00 77.3 0 CHIP 0!!O:1IDAE ',4 17.94 -1.00 22.7 bJ 2

                                                                                     ,  A
  • ORTilCOLA01US ( LPIL) 3.59 2 POLYPEDILUt1 (LPIL) 10.76 3.59 -1.00 4.5 f 2 PARACLADOPELMA ILPIL) 3.59 10.76 -1.00 13.6 4 3.59 -1.00 4.5 41 TOTAL 73.94 DIVERSITY (H PRIME) 78.94 -1.00 100.0 DIVERSITY (J FRIME)

C.E s %g . ' 0.85 -1.00 t4Utt3ER CF TAXA 0.67 4 N c. ' O.67 -1.00 BOTTCit TYPE o 4 q ABOVE C0t1PUTED USIriG sat 1PLE I00 4401 4402 4403 DATE 03/08/79 PAGE !40 2 T600 AQUA 9/28/77 N N CN N v1 N

NORTHERN STATES POWER COMPAHf Table 2.2-3 (cont) PRAIRIE ISLA!O NUCLEAR GENERATIN3 PLANT MACR 0 INVERTEBRATE DEN! T (NUMBER PER SQUARE METEP) PETERSEN DREDGE WITHIN-Slid RFPORT SEPTElBER LS TAXA REL STURGEON LAKE X S.E. A8% 2 0 NEMATODA (TOTAL) 14.35 1 14EMATCOA (LPIL) 14.35 -1.00 0.3 14.35 14.35 -1.00 0.3 0 OLIGOCHAETA (TOTAL) 3555.80 0 TUBIFIr 1E 3555.80 -1.00 83.2 1 TUBIFILIDAE ( LPIL) 3555.80 0 BIVALVIA (TOTAL) 3555.80 -1.00 83.2 32.29 32.29 -1.00 0.8 0 SPHAERIIDAE 1 SPHAERIUM (LPIL) 25.12 25.12 1 'ISIDIUM ( LPIL) , -1.00 0.6 7.18 7.18 -1.00 0 L. _MEROPTERA (TOTAL) 0.2 39.47 - 39.47 -1.00 0.9 10 0 EPHEMERIDAE D HEXAGENIA LIMSATA 39.47 4 M 39.47 -1.00 0.9

  • 0 DIPTERA NEMATOCERA (TOTAL) 631.50 F.C. 631.5G g 0 CHA000RIDAE -1.00 14.8 3't M

i 2 0 CHA0 PORUS (LPIL) 7.18 k 7.18 -1.00 0.2 CE R AirM-ONID AE O 2 CERATJP030N10AF (LPIL) h' "h, ', 21.53  ? 21.53 -1.00 0.5 0 C'OR( t10MID AE $- t Ch1PONCttUS ( LPIL) 243.99

                                                                                    , gp%

2 243.99 -1.00 5.7 CRYPTOCHIRONOMUS (LPIL) 7.18 a 7.18 -1.00 0.2 2 OICROTEto' PES ( LPIL) 3.59 '. d.w 3.59 2 ABLAEESMYIA ( LPIL)

                                                                                       $                                -1.00   0.1 14.35                              .                  14.35 -1.00   0.3 2         PROCLADIUS ( LPIL)                   28.79                                   ;

28.70 -1.00 0.7 2 PARACHIRCN0tUS ( LPIL) 3.59 2

                                                                                                        .,         3.59 -1.00   0.1 COElvi Ar4YPUS (LPILI               247.53                                     A          247.58 -1.00   5.8 2         TANYPUS (LPIL)                        ?.18 2         GOELDICHIRONOMUS T c.'. "       7.18 -1.00   0.2 43.06                                      ' ;??

43.06 -1.00 1.0 3 CHIRONOMIDAE ( LPIL) 3.59 ' 3.59 -1.00 0.1 TOTAL 4273.41 1 4273.41 N DIVERSITY (H PRIME) 1.05 " 1.05

                                                                                                                        -1.00 100.0
                                                                                                                        -1.00 N    DIVERSITf (J PRIME)                               0.31                                                    0.31 -1.00 HUMDER OF TAXA                                      17                                          fg        17 j.

BOTTON TYPE 0 N ABOVE CCMPUTED USING SAMPLE IDS y ,g 4411 4412 4413 U DATE 03/08/79 PAGE NO 5 T600 AQUA 9/28/77

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NORTHERN STATES POWER CCMPANY Table 2.2 -3 (cont) PRAIRIE ISLAND NUCLEAR GENERATING PLANT MACROINVERTECR ATE DENSITY (NUMBER PER SQUARE METER) PETERSEN DRECGE WITHIN-SITE REPORT INTAKE SEPTEMBER LS TAXA X-1 X-3 - REL X S.E. AB% 0 NEMATCDA (TOTAL) 3 28.70 4 10.76 D ' 1 NEMATODA ( LPIL) 28.70 19.73 8.97 2.2 0 ENDOPROCTA 10.76 19.73 3.59 3.59 8.97 2.2 0 ENDOFROCTA 3.59 0.0 0.4 11 URNATELLA GRACILIS 3,59 3.59 3.59 0 OLIGOCHAETA (TOTAL) 1008.25 21.53 0.0 0.4 0 NAIDIDAE 514.89 493.36 56.2 1 NAIDIDAE (LPIL) 25.12 0.0 ' 0 TUDIFICIDAE 12.56 12.56 1.4 1 TUBIFICIDAE ( LPIL) 983.14 21.53 0 GASTPOPODA (TOTAL) 0.0 504.33 480.80 54.8 3.59 1.79 1 GASTROPODA (LPIL) 0.0 3.59 m 1.79 0.2 0 BIVALVIA (TOTAL) . 1.79 1.79 0.2 0 1 SPHAERIIDAE 25.12 0.0 Qq 12.56 12.56 1.4 SPHAEPIUM ( LPIL) 21.53 0.0 1 PISIDIUN (LPIL) 10.76 10.76 1.2 tJ 3.59 0.0 O EFHEMEROPTERA (TOTAL) 1.79 1.79 0.2

  • 53.82 0.0 h O EPHEMERIDAE '
                                                                                                   - .         26.91     26.91     2.9 10         HEXAGENIA (LPIL)

%J CT 0 TRICHOPTERA (TOTAL) 53.62 3.59 0.0 0.0 Qw.- 26.91 26.91 2.9 0 LEPTOCERIDAE 1.79 1.79 0.2 2 h OECETIS (LPILI 3.59 0.0 g~ % Q 1,79 1.79 0.2 0 DIPTERA NEMATOCERA (TOTAL) 620.74 0 CHA000RIDAE 43.06 v. 331.90 283.84 36.2 2 CHACEORUS (LPIL) C*idF J O CERATOPOGONIOAE 21.53 0.0 p gj'% 10.76 10.76 1.2 2 CEPATOPOGC'11DAE ( LPIL) 28.70 3.59 16.15 0 CHIRONOMIDAE 12.56 1.8 2 CHIPONONUS (LPIL) 132.76 0.0 66.38 2 CRYPTOCHIRONOMUS ( LPIL ) 17.94 14.35 66.38 7.2 4 TANYTARSUS ( LPIL ) 16.15 1,79 1.8 0.0 14.35 N 2 POLYPEDILUM ( LPIL ) 0.0 3.59 7.18 7.13 0.8 q 2 ABLABESMfIA (LPIL) 1.79 1.79 0.2 89.70 0.0 44.85 2 PPOCLADIUS ( LPIL) 21.53 44.85 4.9 O 2 GLYPTOTENDIPES ( LPIL) 0.0 0.0 10.76 10.76 1.2 7.18 3.59 2 CCELOTANYPUS ( LPIL) 236.81 3.59 0.4 0.0 118.41 N 2 TANYPUS ( LPIL) 53.82 118.41 12.9 0.0 26.91 2 s ,0E LDICHIP0t.0MUS 10.76 0.0 26.91 2.9 2 F t9ACL A00PELMA ( LPIL) 5.38 5.38 0.6 M 3.59 0.0 2 EPICCUCLADIUS 1.79 1.79 0.2 3.59 0.0 0 ECTCPR1CTA (TOTAL) 1.79 1.79 0.2 3.59 3.59 0 PLL% TE L LID AE 3.59 0.0 0.4 DATE 03/08/79 PACE NO 9 tan 0&mle 9/?A/77

HORTHERN STATES POWER COMPAt" Table 2.2 -3 (cont) PRAIRIE ISLAND HUCLEAR GENERATING PLANT MACROINVERTEBRATE DE*lSITY (NUMBEP PER SQUARE ttETERI PETERSEN DREDGE WITHIN-SITE REPORT INTAKE SEPTEMBER LS TAXA X-1 - REL X-3 3 4 X S.E. AB% 8 PLUMATELLA REPENS 0.0 3.59 1.79 0 CRISTATELLIDAE 1.79 0.2 8 CRISTATELLA MUCEDO 3.59 0.0 1.79 1.79 0.2 TOTAL 1747.40 86.11 f DIVERSITY (H PRIME ) 0.10 1.83 916.76 1.95 830.64 100.0 y DIVERSITY (J PRIME) 0.15 0.53 0.91 0.74 1 NUMBER OF TAXA 20 10 0.17 BOTT0f1 TYPE O 25 ABOVE COMPUTED USING SAMPLE IDS 4421 4422 4423 4431 4432 4433 DATE 03/08/79 PAGE NO 10 T600 AQUA 9/28/77 (- yg, /, N '/ N /j ' Cs M tj G-: aftLW LJT i As we

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NORTHERN STATES POWER COMPAt4Y Table 2.2 -3 (cont) PRAIRIE ISLAt4D NUCLEAR GEtlERATIt4G PLANT MACROItNERTEORATE DEtiSITY (NUMSER PER SQUARE METER) PETERSEN DREDGE WITHIN-SITE REPORT SEPTEMBER LS TAXA C-1 C-4 REL X S.E. AS% 7 8 0 NEMATODA (TOTAL) 0.0 132.76 1 r1EMATOD A ( LPIL) 66.3S 66.38 28 0.0 132.76 66.38 66.38 28.2 0 OLIGOCH AETA ( TOTAL) 0.0 193.76 0 TUBIFICIDAE 96.88 96.bs *l.2 1 TUSIFICIDAE ( LPIL) 0.0 193.76 0 BIVALVIA (TOTAL) 96.8S 96.83 41.0 0.0 37.47 N O SPHAERlIDAE 19.73 19.73 8.4 1 SPHAERIUM ( LPIL) M 0.0 39.47 19.73 19.73 8.4 0 DIPTERA t1EMATOCERA (TOTAL) 10.76 93.29 h op 0 2 CERATOPOGOt4IDAE 52.03 41.26 22.1 CERATOPOCOilID AE ( LPIL) 0.0 21.53 0 CHIRONOMIDAE 10.76 10.76 4.6 2 CRYPTOCHIROttOMUS ( LPIL) 3.59 2 0.0 1.79 1.79 0.8 DICROTEt1DIPES ( LPIL) 3.59 0.0 2 POLYPEDILUt1 (LPIL) 1.79 1.79 0.8 3.59 64.59 34.09 2 PSECTROCLADIUS ( LPIL) 0.0 30.50 14.5 3.59 1.79 1.79 3 CHIRottOMIDAE ( LPIL) 0.8 0.0 3.59 1.79 1.79 0.6 TOTAL 10.76 45).27 235.02 JIVERSITY (H PRIME ) 0.33 1.59 224.26 100.0 31VERSITY (J PRIME ) 0.96 0.63 0.33 0.71 0.52

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NORTHERN STATES POWER COMPAtiT Table 2.2-3 (Cont) FRAIRIE ISLAND ttJCLEAR GENEPATING PLANT MACPCINVERTEERATE DENSITY th"#EER PEP SQUARE METER) PETEPOEN DRECGE WITHIN-SITE REFORT DISCllARGE OCTOBER LS TAXA Y-1 Y-2 REL 5 6 X S.E. AB% 0 NE!1ATODA (TOTAL) 1 NEMATCD4 (LPIL) 64.59 28.70 46.65 17.94 64.59 08.70 1.5 0 EN00rRCCTA 10.76 46.65 17.94 1.5 0 0.0 D 00FPCCTA 5.38 5.38 0.2 11 UTNATELLA GRACILIS 10.16 0.0 0 OLICOCHAETA (TOTAL) 5.33 E.38 3035.52 1941.16 0.2 0 TUSIFICIDAE TM 2488.34 547.18 82.4 c 1 TU3IFICIt AE ( LPIL) 3335.52 1941.16 0 BIVALVIA (TOTAL) 3.59 ~ 2483.34 547.18 82.4 0 7.ls 5.38 SPHAEFIICAE ' 1.79 0.2 1 SrHAERIUf1 ( LPIL ) 0.0 7.18  %;. 0 UNIO!4IDAE . 3.59 3.59 0.1 5 UrtIC: LID AE ( LPIL) . 3.59 0.0 0 AMPHIPCOA ( TOTAL ) 0.0 3.59

                                                                                           @-                      1.79     1.79   0.1 0       HfALELLIDAE                                                                     .
                                                                                                     .w   i        1.79     1.79   0.1 1          HYALELLA AZTECA                       0.0           3.59 y        0 ErHEMEROPTEPA (TOTAL)                                                                                    1.79     1.79   0.1 3.59          3.59

. O CAENIDAE ,,.a % 3.59 0.0 0.1 N 10 *m-3 CADJIS ( LPIL) 3.59 3.59 0 TRICH 0PTERA fTOTAL) 3.59 0.0 0.1 7.18 10.76 [ 0 H1CROr0rCHIDAE k ^'l - 8.97 1.79 0.3 2 HrD?OPSICHIDAE (LPIL) 0.0 3.59 0 H1CPOPTILIDAE kn u q 1.79 1.79 0.1 2 HYDPCFTILA (LPIL) 0 LEPTCCERICAE 0.0 3.59 ('"*1. C" I 1.79 1.79 0.1 2 OECETIS ( LPIL) 0 PCLiCENTPOPOOIDAE 7.18 0.0 W219 3.59 3.59 0.1 N 2 NEUPECLIPSIS ( LPIL) 0.0 3.59 IN q O 0 0 D.'T EP A NE!'ATOCER A ( TOTAL ) CHACCORIDAE

                                                   ' 't 2. 8 0     301.40                {gr."y&g l[

l.79 452.10 1.79 0.1 150.70 15.0 2 CHfC:C?US (LPIL) 3.59 0.0 0 CEPATCPOGCNIDAE 1.79 1.79 0.1 N 2 CEP ATOF000NIDAE ( LPIL ) 32.29 0.0

                                                                                           -?.Lq 3     0       CHIRCNC'1ICAE                                                                                     16.15    16.15   0.5 2           CHIPCNOMUS (LPIL)

N 172.23 25.12 2 CR rPTOCHIRONOMUS ( LPIL ) 301.40 215.29 98.67 73.56 3.3 2 CRICOTCPUS (LPIL) 253.34 43.C6 8.6 0.0 14.35 7.18 2 TANrTARSUS ( LPIL) 3.59 0.0 7.18 0.2 2 FOL)PEDILU'1 1LPIL) 0.0 1.79 1.79 0.1 3.59 1.79 2 ACLASEEMfI A ( LPIL) 1.79 0.1 10.76 7.18 2 FPCCLADIUS ( LPIL) 23.70 8.97 1.79 0.3 17.94 23.32 2 GLiPTOTENDIPES ( LPIL) 39.47 0.0 5.38 0.8 19.73 19.73 0.7 OATE 03/09/79 PAGE NO 16 T603 AQUA 9/28/77

NORTHERN STATES PCWER CC"PANY Table 2.2-3 (cont) PRAIRIE ISLAND NUCLEAP CENERATING PLANT MACPOItNERTECRATE DENSITY (h"J:SER PER SQUARE METER)

      ".iERSEN DPEDGE WITHIN-SITE REPORT DISCHARGE OCTOBER LS REL TAXA                                     Y-1        Y-2                      X     S.E. AB%

5 6 2 COELOTANYPUS ( LPIL) 7.18 3.59 5.38 1.79 0.2 2 PSECTFOCLADIUS (LPIL) 3.57 3.59 2 PAP AC L,?DOFE Lt1A ( LPIL ) 3.59 0.0 0.1 0.0 10.76 5.33 5.38 0.2 0 ECTCFPCCTA (TOTAL) 0.0 17.94 0 8.97 8.97 0.3 CRISTATELLIDAE 8 CRISTATELLA MUCECO 0.0 17.94 to 8.97 8.97 0.3 TOTAL 3728.02 231w.32 3021.17 706.85 100.0 DIVERSITY (H PRIME) 1.11 1.26 CD DIVEPSITY ( J PRIt:E l 1.18 0.08 0.33 0.43 0.38 ut trut*CER CF TAXA 0.05 16 18 25 BOTTert TYPE O ABOVE CCMPUTED USING SAMPLE IOS 4521 4522 4S23 4531 4532 4533 DATE 03/09/79 PAGE NO 17 T600AOUA 9/2S/77 W rv 'f .; N Y Nf cs &# > ru u

                          ~O gskk      , .   .

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NCRTHERN STATES PC'WER CCMFANY Table 2.2 -3 (cont) PRAIRIE ISLAt:0 t1UCLE AR GENERATINS PLANT MACROItNERTEE,pATE DENSITY (t1U '.2ER FER 57UAPE METER) PETERSEN DRECOE WITHIN-SITE REPORT OCTOBER REL LS TAXA C-1 C-4 X S.E. AE% 7 8 0 NEMATOD A (TOTAL) 21.53 3E5.22 183.37 166.05 03.0 1 N:MATO3A (LPIL) 01.53 355.22 188.37 166.85 33.0 0 OLICCOHAETA ( TOTAL) 7.18 294.02 153.70 143.52 1C.4 0 NAIDIDAE 1 NAIDIOSE ( LPIL) 0.0 3.59 1.79 1.79 0.2 0 TUDIFICIDAE 1 TL'3IFICIDAE ( LPIL) 7.18 290.64 143.91 141.73 18.2 0 BIVALVIA (10TAL ) 0.0 25.12 12.56 12.56 1.5 0 SrHAE9IIJAE 1 SPHAEpict ( LPIL) 0.0 05.12 12.56

12.56 1.5 9 COLEOFTEP A FOL), PASA (TOTAL) 0.0 3.59 1.79 1./9 0.2 P HYCCCrHILIDAE 1 HtDRCTHILIC AE ( LPIL) 0.0 3.59  % 1.79 1.79 0.2 g

0 TRICHCPTER A (TOTAL) 0 2 H)DROFSYCHIDAE HYD90FSYCHE CPRIS 50.23 3.59 107.64 0.0 g( - V 78.94 1.79 28.70 1.79 9.6 0.2 . 2 POTAMrIA (LPIL) 3.59 7.18 5.33 1.79 u.7 bJ 2 HYCPOPS)CHIDAE ( LPIL) 35.08 100.47 68.17 32.29 8.3 i O LIMNEPHILIDAE 2 LIf 3:EPHILIDAE ( LPIL) 3.59 0.0 g 1.79 1.79 0.2 0 LEPTCCEPIDAE 2 LEPTOCERID AE ( LPIL) 3.59 4 0.0 1.79 1.79 0.2 0 DIPTERA NEM ATCCERA (TOTAL) 229.64 538.01 383.93 154.09 46.9 0 CH A00 C"7 ID AE 2 CHACSCRUS (LPIL) 10.76 0.0 - 5.33 5.33 0.7 0 CERATCF030MIDAE G 2 C ER ATO."CCONIC AE ( LFIL ) 14.35 53.82 34.09 19.73 4.2 0 CHIROt:0MID A E N NJ 2 2 CilIr0MC':US ( LPIL ) CR t PT CCHIPCN0t'L'S ( LPIL ) 7.18 3.59 3.59 l 's . 3 5 QAb  % 5.33 8.97 1.79 5.38 0.7 1.1 CN  : TAurTAPsus ( LPIL) 0.0 3.59 1.79 1.79 0.2 2 POLYFEDILUM ( LFIL) 78.94 294.02 186.58 107.64 20.8 2 FROCL/DIUS ( LPIL ) 3.59 0.0 1.79 1.79 0.2 IN 2 CC7) NC';EU7 A ( LFIL ) 43.06 0.0 21.53 21.53 0.6 A. 2 GL) P TOTEt'CIFES ( LPIL) 0.0 14.35 7.13 7.18 0.9

e. . 2 COELOTANYPUS ( LPIL) 0.0 3.59 1.79 1.79 0.*

2 PSECTFCOLADIUS (LPIL) 01.53 100.4; 61.00 39.47 7.5 2 FA?ACLAC0FEtMA (LPIL) 4L65 30.29 39.47 7.18 4.8 3 CHIRC? 'OMID AE (LPIL) 0.0 17.94 8.97 8.97 1.1 0 ECT07.7CCTA ( TOTAL ) 0.0 3.59 1,79 1.79 0.2 0 PLUM \TCLLIDAE 11 PLUMATELLA PEFEMS 0.0 3.59 1.79 1.79 0.2 DATE 03/09/79 PAGE NO 22 T600 AQUA 9/r8/77

it0RTHERtl STATES FCWER COMPANY Table 2.2-3 (cont) FRAIRIE ISLAta NUCLEAR GENERATING PLANT MACROItiVERTECRATE DENSITY t h"JM3ER PER SQUARE METER ) PETERSEtt DREDGE WITHIN-SITE REFORT OCTOBER LS PEL TAXA C-1 C-4 x S.E. Acx 7 8 TOTAL 308.57 1327.59 818.08 509.51 100.0 DIVERSITY (H PRIME) 2.67 2.64 DIVELSITY (J PRIME) 2.66 0.02 M 0.88 0.72 NUMDER OF TAXA 0.E0 0.08

  • 16 13 24 g BOTTC.1 TYPE 0 1

(D r$0VE COP 1PUTED USING SAMPLE IOS 4 4541 4542 4543 4531 4552 4553 DATE 03/09/79

                                   =

PAGE NO 23

                                -c                                    T600 AQUA  9/28/77 n>

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NORTHERN STATES POWER CCMPANY Table 2.2-3 (cont) FRAIRIE ISLAto ifJCLEAR r.ENERATING PLAT 4T MACROINVERTE5P ATE DENSITY (NUM3ER PER SCUA"E METER ) PETERSEM CREDGE WITHIN-SITE REPORT NOVEMBER REL LS TAXA B-1 X .E. AB% 1 0 NEMATCD A (TOTAL) 31.29 32.29 -1.00 1.7 1 NEMATCDA ( LPIL) 32.29 ?2.29 -1.00 1.7 0 OLICOCHAETA (TOTAL) 406.45 466.'.5 -1.00 24.3 0 HAIDIDAE 1 NAIDIDAE (LPIL) 13.76  % 11.76 -1.00 0.6 0 TUBIFICIDAE 1 TUDIFICIDAE (LPIL) 455.69 455.69 -1.03 23.7 0 EPHEhERCPTER A (TOTAL) 70.94 70.94 -1.00 4.1 0 ErlfEMEP!OAE 10 HEXAGEt4IA LIMBATA 21.53 kh h 21.53 -1.00 1.1 10 NEXAGENIA (LPIL) 0 DIPTERA t4EMATCCERA (TOTAL) 57.4L 'y

                                                                                    . y, -

57.41 -1.00 3.0 1345.53 1345.53 -1.C0 70.0 0 CHAO20RIDAE 2 CH ACCCRUS ( LPIL ) 3.59  ?-% 3.59 -1.00 0.2 0 CERA10PC00MIDAE *%w. to 2 CERATOPO3CttIDAF ( LPIL) 17.94 17.% -1.00 0.9 g 0 CHIRGilCM!CAE  % g 2 CHIRCUCMUS ( LPIL) 337.23 %p 337.20 -1.00 17.5 CD 2 09THOCLADIUS ( LPIL) 3.59 3.59 -1.03 0.2 CD 2 CR IPTOCHIRONO".US ( LPIL ) CRIC01CPUS ( LPIL) 17.3.02 [/g 175.E2 -1.00 9.1 2 3.59 $ '."9 -1.00 0.2 2 POLYPEDILUt1 (LPIL) 57.41 f 57.41 -1.00 3.0 2 AD LAEESMYI A ( LPIL ) 46.65 46.65 2 PROCLADIUS ( LPIL ) 600.21 k,g 660.01

                                                                                                         -1.00
                                                                                                         -1.03 2.4 34.3 2        GLYPTOTENDIPES ( LPIL)                   7.18    N                                7.!S  -1.00    0.4 2        PSECTPCCL ADIU3 ( LPIL)                10.76                                     10.76  -1.00    0.6 2        PGITHASTIA                               3.G7     %                               3.59  -1.C0    0.2 2        EPICCCCLADIUS                            3.59                                     3.5)  -1.00    0.2 2        PARALAUTERBCRHIELLA                    14.35                                     14.25  -1.00    0.7 TOTAL                                          1923.21                                    1923.21  -3.00 100.0 DIVERSITY (H FRIMC )                               2.43                                      2.43  -1.00 N   DIVERSITY (J PRIME l                               0.71                                      0.71  -1.00 N   NUMBER OF TAXA                                        19                                        19 GOTTCM TYPE             D ALOVE CCMPUTED USIHG SAMPLE IDS N                      4561        4562    4563 M'

CATE 03/03/79

   @                                                               PAGE f3             3 T600AGUA     9/20/77

NORTHERN STATES FCWER CCMPANf Table 2.2 -3 (cont) PRAIRIE ISLAN3 tiUCLEAR GENLUATING PLAtiT MACROItJVERTEBRATE DEtJ3ITY (NUMDER PER SQUARE METER) PETERSEtt DREDSE WITHIN-SITE REPORT NOVEFULER LS TAXA - REL STURGEON LAKE X S.E. AS% 2 0 NEMATCD A (TOTAL) 111.23 1 i:EMATCD A ( LPIL ) 111.23 -1.0L 3.1 111.23 111.23 -1.00 0 OLIGOCHAETA (TOTAL) 2167.21 3.1 0 TUDIFICIDAE 2167.21 -1.00 61.3 1 TUDIFICIDAE ( LPIL) 2167.21 0 HIRUDIrlEA ( TOTAL) 2167.21 -1.00 61.3 10.76 10.76 0 GLOOSIPHONIIDAE -1.00 0.3 1 HELOCDELLA STAGNALIS 10.76 10.75 0 EPHEMERCPTERA (TOTf.L ) 50. " T -1.00 0.3 t) 0 ETHEt1ERIDAE 50.23 -1.C0 1.4 10 HEXAGEt4IA LIMBATA 32.29 J 32.29 10 HEXAGEtJIA (LPIll 17.94 ,pM4 <1 1.00 0.9 03 0 DIPTERA tJEMATOCERA (TOTAL) 17.94 ' 00 0.5 1194.03 1194.03 (D 0 CHACECRIDAE # -1.00 33.8 2 CHACBC?US (LPIL) 53.62

                                                                                     ~

0 CERATOPOGCtiIDAE 53.02 -1.00 1.5 2 CERATOPOGCNIDAE ( LPIL) 25.12 25.12 0 CHIRONOMIDAE -1.00 0.7 2 CHIR 0!!OMUS ( LPIL ) 369.57 2 CRYPTOCHIRCt:CttUS ( LPIL) 369.57 -1.00 10.4 10.76 10.75 2 ABLASESMTIA (LPIL) -1.00 0.3 111.23 [S '*g 111.23 -1.00 3.1 2 FRCCLADIUS ( LPIL) 409.04 8' 2 COELOTANYPUS ( LPIL) 215.29 407.04 -1.C0 11.6 0 ECTCFRCCTA (TOTAll y 215.29 -1.00 6.1 3.59 x 0 CRISTATELLIDAE 3.59 -1.00 0.1 8 CRISTATELLA MUCEDO 3.59 gg$ 7.59 -1.00 0.1 TOTAL 3537.C5

 I                                                                                                          3537.05   -1.00 100.0 DIVERSITY (H FRIME)                                   1.94 C7%   DIvERSITr (J FaIME)                                                                                        1. 76 -1.00 c.57                                                 0.57 NUM3ER OF TAXA                                           13
                                                                                                                        -1.00 pgj   BOTTOM TYPE              O 13
 ~ '

d ABOVE COMPUTED USIllG SAMPLE IDS ' 4571 4572 4573 PATE 03/08/79 PACE 110 5 T 600 A ~iUA 9/20/77

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NORTHERN STATES POWER CC"PANY Table 2.2-3 (cont) PRAIRIE ISLA!C ffJCLEAR GENERATING PLAT 4T MACROIflVERTEGRATE DEN 3ITY (NUMDER PER SQUAPE tic 1ERI PETER 0Ett CREDGE WIT)lIN-SITE REPORT DISCllARrE NOVEMBER LS TAXA - REL Y-1 Y-2 X S.E. 5 AB% 6 0 i;EMATCUA (TOTAL ) 7.18 21.53 14.35 1 f.EttATCDA ( LPIL) 7.18 21.53 7.13 0.4 0 El.'DOPROC T A 14 . M 7.18 0.4 10.76 0.0 5.33 0 ENDCFROCTA 5.33 0.1 11 URNATELLA GRACILIS 10.76 0.0 5.33 0 OLIGOCHAETA ( TOTAL) 5.33 0.1 1542.00 5274.47 3400.63 1865.61 0 IU3IFICIDAE 89.5 1 E>P ANCHIUR A SO*WERBYI 3.59 0.0 1.79 1 TU3IFICID AE ( LPIL ) 1.79 0.0 151).29 5274.49 3400.69 1867.60 89.4 0 BIVALVI A (TOTAL) 0.0 14.35 0 UNICNIDAE 7.13 7.18 0.2 5 UNIC? TID A E ( LPIL ) 0.0 14.35 7.10 7.18 0 EP:lEt'ERORTERA (TOTAL) 0.2 7.18 14.35 13.76 y 0 EFHEi!ERIDAE 3.59 0.3 t"g'

  • 10 HEXAGE!!IA LItOATA N 0.0 13.76 5.33 5.33 C.1 10 HEXAGENIA (LPIL) 7.18 3.59 0 TRICH 0PTERA (TOTAL) 5.20 1.79 0.1 3.59 0.0 -,s n 1.79 0 HYDRCPSYCHIDAE D 1.79 0.0 2 HfDROPSTCHIDAE ( LPIL) 3.59 0 DIPTERA net'ATOCERA (TOTAL) 0.0 GEC2,'[ 1,79 1.79 C.0 333.69 303.93 gdM 353.El 25.12 0 CERATCPOOONIDAE 9.4 2 CERATOPOOCNIDAE (LPIL) 10.76 3.59 byyg 7.10 3.59 0.2 0

2 CHIR 0t!OMID AE CHIRONCMUS ( LPIL ) 111.23 W .C8 Mb.# 104.05 7.18 2 CRYPTCCHIRCt:CMUS ( LPIL) 139. % 2.7 251.17 ppgS1 193.55 2 ACLABESrt(I A ( LPIL ) 0.0 55.62 5.1 3.59 ,m d 1.79 2 PROCLADIUS (LPIL) M 1.79 0.0 7.13 21.53 14. T> 7.13 0.4 2 2 GLYPTOTEtCIFES ( LPIL) PAR ACLADOPE LM A ( LPIL) 64.59 0.0 [d"Eb 32.29 32.29 0.A 2 EPICCCCLADIUS 0.0 3.59 j3t g 1.7' 1.79 0.0 0 ECTCP.2CTA (TOTAL) 0.0 0.0 3.59 3.59

                                                                                               'c
                                                                                               ',        d 1.77     1.79   0.0 N       O           CRISTATELLIDAE                                                                                1.79     1.79    0.0 N       8          CRISTATELLA t1UCEDD                       0.0           3.59                  ;. lM            1.79     1.79   0.0 Ch.                                                                                             DNM
      ' TOTAL                                           1905.07         5712.23 OIVERSITY (H PRIttEl                                   1.09                                           4 300 3. r; 1903.43 100.0 C.69 N     DIVERSITY (; rRIt:E l                                  3.37          C.23 0.09     0.20 A.,.                                                                                                              C.33     0.07 NUMBER OF TAXA                                            11             13                         L -        17 g     BOTTori TYPE                O
                                                                                                       . j ABOVE COMI JTED USIN3 SAMPLE ids                                                              -

4531 4602 4603 4611 - 4612 4613 DATE 03/03/79 Par.r Nn iT

NORTMERt. STATES POWER COMPANY Table 2.2-3 (cont) PRAIRIE ISLAND t:UCLEAR GEtERATIt;G PLANT MACROINVERTEERATE DEtiSITY INUMOER PER SQU ARE MOTEP ) PETERSEN D?ECCE WITHIN-SITE REPORT NOVEMBER LS TAXA C-1 REL C-4 X S.E. AB% 7 8 0 net 1ATCD A (TOTAL) 17.94 17.94 1 NEM& TOC A ( LPIL ) 17. 9'+ 0.0 3.2 17.94 17.94 17.9) 0.0 3.0 0 G LILOC!i A E T A (TOTAL) 05.10 503.26 0 NAIDIDAE 074.49 099.37 49.5 1 UAIDIDAE (LPIL) 0 TUBIFICIDAE 3.59 0.0 D 1.79 1.79 0.3 1 TUD!FICID AE ( LPIL) 01.53 5 0 3. C6 0 DIVALVIA (TOTAL) 072.69 051.17 49.2 3.59 10.76 b - 7.18 3.59 1.3 0 SPHAERIICAE 1 SFHAEPIUti (LPIL) g 1 PISIDIUM ( LPIL ) 3.59 0.0 3.59 3.59 Q 3.59 1.79 0.0 1.79 0.6 0.3 0 UtlICNIDAE 1 (211CNIDAE iLPIL) 0.C 3.59 0 EP!iENEPCPTERA (TOTAL) 1.79 1.79 0.3 3.59 3.59 3.59 0.0 0 E ri1EMERID AE 0.6 g 10 HEXAGENIA (LPIL) 3.59 3.59 3.59 0.0 0.o . O PLECOPTEPA ( TOTAL) 0.0 3.59 M 0 ISCPE7LIDAt 1.79 1.79 0.3 i 10 ICCPE RLA ( LPIL) 0 0.0 3.59 1,79 0 TRICHCPTEFA (TOTAL) 1.79 0.3 7.10 0.0 3.59 3.59 0 HTOPOP01CHIDAE 0.6 2 HYC*'0?S1CHIDAE (LPIL) 7.18 0.5  % 0 DIPTERA net:ATCCERA (TOTAL) 3.! 9 3.59 0.6 05).75 009.(4 -- 040.00 0 CERATCPOCCIIIDAE 10.56 43.7 4 0 CER ATOPC00NIDAE ( LPIL) CHIR 3tOMIDAE 25.10 05.12 (k

                                                                                           %"'N% N           05.10      0.0   4.5 t         CHIRONCMUS ( LPIL)                    50.03        0.0                     - .           05.10     05.10  4.5 2          CRiliCCLADIUS (LPIL)                  17.94        3.59 2          CRYPTCCHIPOi:CMU3 ( LPIL )

J 10.76 7.13 1.9 2 POLYPLDILUM ( LPIL) 3).47 39.97 46.65 125.53

                                                                                         ^GM                 43.06      3.59  7.8 2         ADLADErMrIA (LPIL) 82.53    43.06 14.9 3.59       U.0            ft                      1.79      1.79  C.3 2          PROCLADIUS (LPIL)                     43.06      14.35                                   08.70    14.35   5.2 g      2         CCPiND'JIU?A (LPIL)                      3.59       7.13                                   5.33      1.79  1.0 2         GLYPTOIEFCIPES ( LPIL)                   0.0        7.13                                   3.59      3.59  0.6 0         EUXIEFFERIELL A ( LPIL)                  7.18       0.0
  @                                                                                                           3.59      I.59  0.6 2         PARACLw)OPELMA ( LPIL)                 10. 76       0.0 2

5.35 5.33 1.0 f *0 NOCI ANZ S A (LPIL) 3.59 C.0 2 1.79 1.79 0.3 g3 SAETH:RIA ILPIL) 10.73 0.0 5.33 5.33 1.0

  ,     O ECTOPROCTA (TOTAL)                                3.39       3.59                                   3.59
  *s -

0 0.0 0.6 PLUMATELL! NAE O 11 PLUCATELLA REPENS 0.0 3.59 1.79 1.79 0.3 0 CPISTATELLIDAE DATE 03/00/79 PAGE NO 19 T 6 0 0CR 9/08/77

NCRTHERN STMES POWER COMPAt3Y Table 2.2-3 (cont) PRAIRIE ISLAND NUCLEAR GEt1ERATIttG PLAh! MACRCItiVERTEURATE DENSITY (tut 3ER PER SGU4RE ttETER) PETERSEN DREDSE WITHIti-SITE REFORT NOVEMBER LS TAXA C-1 C-4

                                                                                           ~

REL X S.E. AD:f 7 8 8 CRISTATELLA MUCEDO 3.59 0.0 1.79 1.79 0.3 TOTAL 315.75 N 790.97 DIVERSITY (H l' RIME) 3.03 1.73 554.36 033.61 100.0 DIVERSITY ( J FRIME ) 2.43 0.65 g 0.90 0.67 g tR#tDER OF TAXA 19 0.7S 0.12 15 w BOTTOM TYFE O 0 '* G) ABOVE cot?PUTED USING SAMPLE IDS 4621 4602 4623 4631 4632 4633 DATE 03/03/79 PAGE t:0 20 T600A9UA 9/0C/77

  ~
  ~

C% 6AA 9 VA ' N D o, . t I wi '

TABLE 2.2-4.

SUMMARY

STATIST ~iCAL INFORMATION FOR PETERSON DREDGE SAMPLES COLLECTED DURING 1978 NEAR RED WING, MINNESOTA STATIONS MONTHS L'NTRANS FORMED TRANSFORMED 3-6 2-11 X-1 X- 3 Y-1 Y-2 X-1 X- 3 Y-1 Y-2 X-1 -

  • 0 0 X-1 -
  • O O X-3 - *
  • X-3 - *
  • Y-1 -

0 Y-1 - 0 Y-2 - Y-2 - CROLT SIMILARITIES: X-3 X-1 Y-1 Y-2 X-3 X-1 Y-1 Y-2 STATIONS MONTHS 1-8 3-6,9-11 B-1 SL X-1 X-3 Y-1 Y-2 C-1 C-4 B-1 SL X-1 X-3 Y-1 Y-2 C-1 C-4 B-1 - 0 0 0 0 0 0 0 B-1 - 3 0

  • 0 0
  • 0 SL - 0
  • 0 0 0 c SL -

0

  • o o *
  • X-1
  • 0 0 0 0 X-1 -
  • 0 0 *
  • 0
  • O O 3 -

X-3 -

  • t 0
  • Y-1 -

0 0 0 Y-1 - 0

  • O Y-2 - *
  • Y-2 - *
  • C-1 - 0 C-1 -

0 C-4 - C-4 - CROL7 SIMILARITIES: X-3 C-1 C-4 B-1 Y-1 X-1 SL Y-2 X-3 C-1 C-4 B-1 Y-1 X-1 SL Y-2 STATIONS MONTUS 1, 3- 8 3-11 B-1 X-1 X-3 Y-1 Y-2 C-1 C , B4 X-1 X-3 Y-1 Y-2 C-1 C-4 B-1 - 0 0 0

  • 0 0 B-1 -

0

  • 0 *
  • 0 X-1 -

0 0

  • O 0 X-1 -
  • 0 0 *
  • X-3 -

0

  • OO X-3 - *
  • 0
  • Y-1 -
  • O O Y-1 -

0

  • o Y-2 - *
  • Y-2 **

C-1 - 0 C-1 -

  • C-4 -

C-4 - CROLT SIMILARITIES: X-3 r-1 C-4 B-1 Y-1 X-1 Y-2 X-3 C-1 C-4 B-1 Y-1 X-1 Yd

  • = Significant at the a = 0.05 level 0 = No significant difference POOR GH131N#1 276 252 2.2-94 C'

TABLE 2. 2 -5. OCCURRENCE OF BENTHIC MACR 0 INVERTEBRATE TAXA COLLECTED BY ARTIFICIAL SUBSTRATE SAMPLER FROM THE MISSISSIPPI RIVER NEAR RED WING, MINNESOTA DURING 1978 LIFE STAGE (LS) LISTINGS USED FOR BENTH0S TABLES: 01 - Adult 05 - Immature 02 - Larvae 06 - Juvenile 03 - Pupae 10 - Nymph 04 - Egg 11 - Colony 12 - Undetermined w0 1. - s 2.2-95

NORTMEPN STATES PCKER CC:"PANY TABLE 2.2 -5 (cont) PR AIRIE ISLAND t,"JCLEAR GFNERATING PLAtlT MACROINVERTECM ATE OCCL': PENCE REFORT HESTER CEN3Y MULTIPLATE SAMPLER SITE LCCATI0t4 CCOES: 1:D-1; 2:SL; 3:X-1,X-2.X-3; 4:Y-1.Y-2 J/N FEB AFR MAY JUL AUG SEP NOV CEC LS TAXA 1234 1234 1234 1 34 1234 1234 1234 1234 1234 0 CNIDARI A (TOTAL) G HfC?OZOA 1 Mf0PA (L?IL) 4 1234 34 3 34 34 2 H10RA (LPIL) 4 11 COROYLCFHO?A LACUSTRIS 1 34 23 3 1 HYC70ZCA (LPIL) 3 0 PLATYHELMINTHES (TOTAL) 1 TUREE LLARI A ( LDIll 34 3 3 4 13 34 34 34 0 NE 1ERTIt4A (TOTAL) 1 NEMERTINA ( LPIL) 34 34 34 34 34 34 0 NEMATCDA (TOTAL) 1 NEM ATOD A ( LPIL ) 34 34 34 1234 1234 34 234 1234 234 0 ENDOFROCTA 3 ENOCFRCCTA - 11 U7NATELLA GRACILIS

  • 3 34 34 34 34 34 M 0 OLICCCHAETA (TOTAL) -

g 0 NAIDIDAE g4 1 N\IDIDAC (LPIL) %p" A 34 34 234 1034 1234 234 234 1234 234 0 0 TUDIFICIDAE G 1 TU3IFICIDAE ( LPIL) '-h 34 34 2 1 4 34 0 LUM:7ICULIDAE 2* 1 LUMERICULID AE ( LPIL) Ly, , , . 1 0 HIRUCINI A ( TOTAL ) ' ,g 3 GLOSSIFHCNIICAE 1 PLACCECELLA (LPIL) 4 0 ERFCODELLI"AE w 1 EPPCCCELLt ( LPIL) 7y 4 6 HI7UCINEA (LPIL) 3 0 C ASTPDFOJ A (TOTAL) DA* . O PHt3IDAE Y l FH f SA ( LPIL) mm 3 34 39 1 34 3 4 34 0 plt.NOPDIDAE y 1 GtRAULUS (LPIL) r* 4 N 1 G AST R OPOJ A (LPIL) 'L 4 34 3 CN O BIVALVIA ( TOTAL) MM 0 SFH'ERIIDAE p-1 PISIDIU'1 (' 2 bs 0 ARACHNIDA (TOTA. [".4 LI O FROSTIGMATA ty, J2 1 ti CPAC/ PINA ( LFIL) 4 1234 1234 34 234 3 0 ISCPODA (TOTAL) gg 0 ASELLIDAE 1 AECLLUS ( LPIL) 1 4 13 4 1 ASELLIDAE (LPIL) 1

l 4 4 C3 3 3 E2 3 O1 4 4 4 V3 3 4 4 4 44 O2 2 3 N1 1 1 4 4 4 P3 3 4 4 3 3 3 E2 2 2 S1 2 2

    )

t 4 4 4 n G3 U2 3 3 4 3 3 4 o A1 1 2 2 2 c 1 1 1 ( 4 4 4 L3 3 4 4 4 4 4 3 3 3 3 4 4 U0 2 2 2 2 3 3 3 5 J1 1 2 2 0 22 2 1 1 1

      -                                                                                                                                    1      1                      1 2

2 4 4 444 Y3 3 4 4 4 4 4 A2 333 3 3 E 2 20 2 2O2 33 M1 1 2 L 1 1 1 1 1 1 B A T 4 R3 4 P2 2 A1 y 1

                       -      4 Y    B3
E0 4 F1
                                                                   )-        g                                     j 3,

g

                                                                                   *   %          ';     '1
                                                                                                                   ; #, ' ~~

J3 [21

                                                                                                                                                            ~J     5 g                      ~                5      ' 1 c        '
  • 4 _ '

X, N3 4 & * [1 2 A2

k. s, ;L #~

A,' ys . 4.m

                      -   J1 t          '
                                                                                                                              "f{jbd]g
                                                                                                                                                          -U X,
  • T 1 N -

A X L = P T 3 1 G C  ; N P L I E R S T R E  : Y A L 2 N R E P A E C M  ;

                                                                           )                                     '                       )

P N N A 1 ) ) L M E S ) L ) ) ) E S - I ) L L L I ) C G R B ) L L I LL L I I P L C F E  : L)

                                                               ) I         P       II               ) ) I               P      F         L                         ) )

R U T 1 I A A LP L PP LLP L L I ) ) 7 A AL C C T IL LL ( P LLL L C A ) TI A E O P( ( ) IIL ( ( L III I ) E E C L ( ) ) PP( E S W O LOP P T) T L ML ( LL ) ) ( PPF PL L P S ATLEG ZL( E( E L L AAEA E LL ELA C C I E T( A UI1NIIE( ( EDI A LED IIE3 LLL ) P U N E T T L D O O ( D4E AI PADAD A A LPCOPPA ILEELLDAADI EIEDF AI BCLA0  : PPAU ( ( ( LD A( T O S A U C TESI A ALRIII T( LL( ( I MMI DLLRIT LLCMEAAAAI ( ( I AT E D R M ( DRY A UC:.DL( ERHR P CC IEEIE;LEHY t A IPPT NM( T A N A O E Y N O 0IL AI A N0LE APNY U C N? T DSOCNZNN: U E. R I D D O A ECCE HCRE t NLPEMT7ESETEI Y0f IANMPGPP( H DNELOOO ETTTI AA 2LP0LE T L T D I DRMCNLLD0ONCDTTUUECGNNGPT E HRCDNDA/EA OC S S I R E N E T A O/MCAE PMANRL I f AOoLCLINEEEOI YPE HSHTEASSLTTT AEEACPMFOI T TT EEECHNANAOE I EI MTMXF7AAMT N R E V N C C C HA GACAH! P Y t: PIFECBPFCEPSSPPLH HEI IA AE EE P ITE CE TFHHMt AEEEEETNt C P E I I R APG C H PHS SS BH hL E R T A AO F EENC C H R O E L XM MP C CF E HHOC E T I R T AA AE FPD L E T EEC P R A C S T O R A E T. S0010101 N F M H S L 6G00000000000010000000O0000O0060000 11 111 11 1 1 1 1 1 11 1 11 1

                                                                                                                                    )

N l ) g NC? IJ g . h> j) ' 3 p (- ( m_

NORTHERN STATES PCWER Cn;1PANy TABLE 2. 2 -5 (cont) PRAIRIE ISLAND NUCLEAR GENEPATING PLANT MACPOItiVERTECPATE CTCU?WENCE REPORT HESTER DEN 3Y tULTIPLATE Sit'PLER SITE LCCATIOid CCDES: 1:3-1; 2:SL; 3=X-1,X-2.X-3; 4 Y-1.Y-2 JAN FEB APP MAY JUL A L'G SEP NOV DEC L5 TAXA 1234 1234 1234 1234 1234 1234 1234 1234 1234 0 TAENICPIER*GIDAE 10 TAENIOPTERYX (LPIL( 3 10 STROPHOPTERYX ( LPIL) 34 0 PERLIDAE 10 PERLESTA (LPIL) 2 10 PERLIDAE (LPIL. 1 0 IEOPERLICAE 10 ISOPEPLA (LPIll 3 34 4 2 ISOPERLA (LPIL) 1 10 PLECCPTEPA ( LPIL) g 23 0 CCLECPfEP<A PCL1PHAGA ! TOTAL) 0 ELMICAE CQ<J-- STENELt:IS (l FIL) ,_7 1 2 CUDIRAPHIA .LPIL) PW

  • 4 2 M
  • 1 ELHIDAE (LPIL) D Q7 4 3

g 0 TPICHCPTERA (TOTAL) l 0 H D"0PSYCHIDAE  % fi h O 2 H DPOPSrCHE cH IS C 22 1234 1234 234 1234 234 2 H(CECPSYCHE ( LPIL ) N 12 1234 1234 234 1239 3 2 3 MfDRCPS CHE (LPIL) D;'j 1 1234 234 3 CHEL?tATOPSrCHE ( LPIL Q-Qg 1 4 1234 1234 23+ 3 1234 34 CHEUMATCPSVCHE ( LTIL) 2 PO T Att f f A lLPIL) e .cy 1 1234 34 3 12 4 234 234 1234 234 2 HYDPCPSrCHIDAE (LPIL)  % 43 1234 1034 234 1234 234 3 H1DROPSYCHICAE (LPIL) [T,% 3 0 HYDRO?TILIDAE

                                                                                        \g,gV N                    2          H YDRCPTIL A ( LPIL )

1234 34 y 2 AGPAYLEA (LPIL) 12 3 1234 , 10 AORAYLE A ( LPIL )

      @                   2

[' d 1 0?TH3TRICHI A ( LPIL) L.n y 34 4 4 2 H107C?TILIDAE (LPIL) , .- y s 2 3 N 3 0 HYEROPTILIDAE (LP!L) [[ 2 3 Um' LEPTCCEPIDAE 's.. 3 NECTCPS rC1'E (:L EPTOCELL A )( LPIL )

        @                2           UECTOPSYCHE ( L EPTCCELLA lf LPIL)
                                                                                      <-C.h l.I , U11 1

2 3 3 CEP/CLEA ( : A T:GI. E00E S )( LPIL s );' k # 234 2 LEFTCCEQIDA: (LPIL) #. ** 3 0 E?ACHrCENTRIDAE f .1:i.f,3 2 ERt CH r CE N T.iU3 ( LPI L ) 1 0 PCLYCENTFCP2OIJAE O CIRhE LLL'S ( LPIL ) 34 34 34 34 1 34 2 NLUPECLIPSIS (LP!L) 23 1234 234 234 123, 34

                                                                         ~                                                                                                                               
s. 'J
s. - .. ' ;.  % . .
                                                                                                                                      . .                1     .

3','

                                                                                                                                   =<..

e ~s e; .

                                            .,- ; .             . .                .        ',         g    .
                                                                                                                                                          )_          ..       .

NORTHERN STATES PCWCR CCMFINY TABLE 2.2-5 < cont) PRAIRIE ISLA!;D NUCLEAR CENEPATING PLANT ttACFOIN"iERTECRATE OCCURRENCE REPORT HESTER ODQY tidLTIPLATE SAMPLER SITE LOCATICN COCES: 1:B-1; 2:SL; 3:X-1,X-2.X-3; 4:Y-1.Y-2 JAN FEB AFP MAY JUL AUG SEP NOV OEC LS TAXA 1234 1234 1234 1234 1234 1234 1234 1234 1234 ' w 3 NEUPECLIPSIS ( LPIL) 3 234 - 2 FOLYCENTROFUS ( LPIL) 2 2 PULYCENTROPODICAE 34 34 13 234 4 .* 3 TRICHOPTEPA ( LPIL ) 1234 1234 1 34 234 3 2 TRICHOPTEPA (LPIL) 1 34 2 4 1 " Ft 0 DIPTERA NE!*ATCCERA (TOTAL ? >- 0 TIFULIDAC -- 3 TIPULIDAE (LPIL) 4 0 CHACCORIDAE . 2 CH ACECFUS ( LPIL) 4 0 CCFATCF000HIDAE y 2 CE 7 ATCFCGCHID AE ( LPII. ) 34 3 4 W~ M O CHIPCNCMIDAE  %'"JD 2 CHIPONOMUS ( LPIL) 34 4 gg 2 09THCCLADIUS iLPIL1 1034 234 pA..{ 2 CRYPTCCHIFONOMUS (I SIL) s 1

  • 2 CDICOTCPUS ( LPIL ? 234 34 234 1234 1234 13 4 123 234 EMd 2

2 TANYTARSUS ( LPIL ) DICROTEt:DIPES ( LPIL) 24 234 1234 1234 1234 1234 1234 34 234 34 1234 1234 34 f6# g '. 2 FOLMEDILU:t i LPIL) 1234 1234 1234 234 1234 34 2 ABLALESMYIA tLPIL) 4 4 1234 1234 1234 234 1234 4 g%' '*, 2 f tICRCT EN11 PES ( LPIL ) AD FFCCLAJIUS ( LP!L) 4 1 4 3 4 ('[vg) 2 CORtNCNEURA (LPIL) 24 3 3 4 > PARACHIPCNOMUO iLFIL) *. 0 34 1234 1234 2 GLYPTOTD7!PCS ( LPIL) 34 3 4 1034 1234 1234 234 1034 34 N 2 EUKIEFFEPIELLA (LPIL) 123 12 4 M 2 THIENEl1P:NIELLA 24 34 1234 1034 3 1234 34 2 STENCCHIR0!:OMUS ( LPIL) 4

 }    2       TANYFUS (LPIL)                                                               3 2       TRISSOCLADIUS ( LPIt.)                      4                                                    4 g    2       PSCCIROCLADIUS ( LPIL)                           23       _se   1234      1234    234  1234    34 2       GC E LD ICHIF CtC'"US                                               34 C    2       MICPOPCEC1RA (LPIL)                                         3 Ni   2       Et'CCCHIRC: CMU3 ( LPIL )                            4    23 2       NILOTANYPUS (LPIL)                                        234     2        2 2       CCILLIA (LPIL)                                              3 2       TRICHOOLAQIUS                                                                                    4 2       KIEFFEOULUS                                                     1 3     CHIFONCTfD AE ( LPIL)               4         9      3    1234    1234      1234    234  '

34 3 CHIPCNCMIDtF (LFIL) 2 2 4 9 4 1 3 sit:ULI!DfE

NORTHERN STATES FCWER COMPANY TABLE 2. 2 -5 (cont) FRAIRIE ISLAh3 NUCLEAR GENEPATING PLANT t'ACROINVERTEER ATE CCCUSRENCE REPCRT HESTER CEt!DY F1ULTIPLATE SA"DLER SITE LCCATICN CCDES: 1:B-1; 2:SL; 3:X-1.X-2.X-3; 4:Y-1,Y-2 JAN FEB AFR MAY JUL AUG SEP NOV CEC LS TAXA 1234 1034 1234 I234 1234 1034 1034 1034 1234 3 SIMULIUM ( LPIL) 12 4 2 git'ULIUM ( LPIL ) 1234 2 sit;ULIID AE ( LPIL) 4 1234 3 sit ULIIDAE ( LPIL) 1034 9 DIPTERA CRACHYCEEA (TOTAL) O STR ATI0t1 YID AE 2 hE!!OLETUS 1 0 RHAGIONIDAE N 2 ATFE2IX 1 g 0 Et1PIDID A E g 2 EMP10IDAE (LPIL) 1 1234 234 123 H 3 It1P!DIDAE (LPIL) 12 4 3 O O ECTCFRCCTA ( TCTAL) O 0 LCPHOFODIDAE 8 FECTINATELLA MAGNIFICA 34 1 3 0 PLUMATELLIDAE 11 PLUMATELLA REPENS 34 34 1 34 234 3 '+ 1034 34 0 PALUDICELLIDAE 11 PALUDICELLA ARTICULATA 1 0 CRISTATELLICAE P CRISTATELLA M'JCE00 4 234 34 DATE 03/21/79 PAGE NO 5 N E00 3001 O N c' 03 em e ~ ~3 p p.~ ,e } r: , , ;  ; b II k7i b 2

TABLE 2.2 6.

SUMMARY

OF BENTHIC DATA COLLECTED BY ARTIFICIAL SUBSTRATE SAMPLER IAN CB MR APR MAY JLT JLL AFC SEPT OCT  !* W Station 5-1 DEC Density (No./m ) N5 NS Ns NS $;0,uR6.08 NS 16,.26.24 19.246.47 NS Diversity (H') (H') NS N3 NS NS 15.0a0.71 NS NS 2h NS 3.36 2.87 2.87 Diversity (J') (J') NS NS NS MS .52 NS .71 .74 NS NS NS Ns No. Taxa (N) a NS KS NS NS .72 NS 32 Ns 45 23 NS N$ 25 NS Station SL (Sturgeon Lake) , Density (No./m') 2.69 2.59 Ni

  • 18 0. 34 18,50).s. N3 18,420.30 15,1%.75 17,299.li Diversity (C') (H', 0.00 0.00 Ns 1.87 Ns 13.510.65 34.99 2.33 NS 2.h3 1. 34 2. b 's 1. 31 Diversity (J') (J') 0.00 0. tXI NS .19 3

1 ..

                                                                                                  .54     Ni             60           .El           .07 No. Taxa                                                                                                                                          NS              81 (N)                         1          I  NS            9               32   Ni 72 38            23            22   Ns              ..

Station X-1 (Intake)

  • Density ( % > . / c',) 0.00 5.33 N9 NS 34.106.50 NS 18,615.3-) 13,745.91 21.164.66 Ns 12,432.7')

Diversity (H') (H') 0.00 0.00 Ns 1 31.8o NS 1.82 Ni '.45 3.29 2.9) 3.4h Dive rsi t y ( J') (J') 0.00 0.00 Ns .41 Ns 2.e8 g NS NS .58 .79 .67 Ns No. Ta x.a (N) 0 2 Ns NS 35

                                                                                                                                                                        .8)               .91 NS             29             26            28 Ns Station X-2 27                18      1%
                                                                                                                                                                                                           ~

g (Intake) g Density (No./my) 17,952.09 '410.12 NS 913.80 15.963.62 27,147.45 {y~ NS 35 M77.25 51,015.51 ':S 32,142.06 12, C h . 29 O Diversity (u') (H') .22 1.27 ss .97 .33 Ns .76 2.8e g Diversity (J') (J') .09 Ns

                                                                                                                                                    .a1     s         1.*7                  81
                                                                .66                47             . :M   NS              20          .65              25 No. Taxa            (N)                                                                                                                           ss              1. 8              23 9          6  Ns            9               2. Ni              21             11            20  fS              26                25 S'ation X-3 (Rectre. Canal)                                                                                                                                                                                "

Density (No./m ) 2642.62 6016.05 N3 2 f:M8.27 108,920.56 Ns 29.041.94 67,351.91 27,631.84 Diversity (H') ('I' ) 59 .a8 NS 52 .35 NS 2.07 1.40 2. 34 Ns 60,581.18 10,707.7) h& Diversity (J') No Taxa (J') (N)

                                                     .37 6
                                                                .50   N3         . 10            .09    NS            .46            . 16 Ns 57 Ns
                                                                                                                                                                        .79 2)
                                                                                                                                                                                          .85 2.

[4%53 5 NS 8 22 NS 22 14 2) Ns 19 20 Station Y-1 ( Di sc ha r y e ) = N Density (No./m ) 24 7 3. C9 1130.25 Ns 231).58 28.420.12 NS 20,295.99 Diversity (H') (H') .87 9) NS .81 1. 31 NS .99 48,266.9)

1. 19 62,626 36 1.03 NS 55 39,5%L 16 1.98
                                                                                                                                                                                ),0 7 th . 5 8  EW3 Diversity (J')      (J')                     .35        .45   NN           28               29  NS 1.40     yy'
                                                                                                                                     . 36
 @      No. Taxa            (N)                       12         10   Ns           15               19  NS 2.

27 29 26 NS 27 NS

                                                                                                                                                                        .44              .3i 34               27     MG Stati m v.

(Dis hargel , (9 De n s t r y (ks./m') 0.00 8.07 Ns NS 2, 7w . 6 7 ' + ,'475.21 19,118.M2 20,2 7.55 NS .2,970.91 152.51 .nem Diversity (H') (H') 0.00 25 Ni NS 1.64 Ni 2.74 3.40 2.69 N5 2.9. 2.45 Diver sit y ( J') ( l') 0.00 25 \S I9 M 6I IY bE SS 72 78 g % gy, 0 1 N4 N1 12 s il .' 4 21 NS 26 16 NS = NOT SAMJLED

  • ONLY ) R1PLICATES Lol.I.F CTf D
    $ PEPLICATL 2 LesT

TABLE 2. 2 -7. 2 MACR 0 INVERTEBRATE DENSIIY (#/m ) AND RELATIVE ABUNDANCE FROM SAMPLES COLLECTED BY ARTIFICIAL SUBSTRATE SAMPLER NEAR RED WING, MINNESOTA DURING 1978 LIFE STAGE (LS) LISTINGS USED FOR BENTH0S TABLES: 01 - Adult 05 - Immature 02 - Larvae 06 - Juvenile 03 - Pupae 10 - Nymph 04 - Egg 11 ','olony 12 - Undetermined IN

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NC9THERN STATES FCWER CC"PANY Table 2.2 -7 (cont) PRAIRIE ISLAND IUCLEAR GENERATING PLANT MACROINVERTEE. RATE GENSITY (NUM2ER PER SQUARE METER) HESTER-DEt:3Y MULTIPLATE SAMPLER WITHIN-SITE REPCRT INTAKE JANUARY L3 TAXA REL X-1 X-2 X-3 X S.E. AEX 3 4 5 0 PLAT 1HELMINTHES (TOTAL) 0.0 5.33 8.07 1 TURCELLAR!A-(LPIL) 4.49 2.37 0.1 0.0 5.38 8.07 4.49 2.37 0.1 0 NEMERTINA (TOTAL) 0.0 113.02 220.67 1 NE t'O R TINA (idIL) 111.23 63.71 1.6 0.0 113.02 220.67 111.23 6 3.71 1.6 0 iEMATODA (TOTAL) 0.0 465.55 137.24 1 t:Et1 ATCD A (LPIL) 200.93 133.12 2.9 0.0 465.55 13/.24 200 93 133.12 2.9 0 OLICCCHAETA (TOTAL) 0.0 17333.54 2247.04 0 NAIDIDAE 6520.52 5443.79 93.1 1 NAIDIDAE ( LPIL) 0.0 17330.46 2244.35 0 TUCIFICIDAE 6524.93 5441.47 95.0 1 TU3IFICIDAC (LFIL) 0.0 8.07 2.69 3.59 2.37 0.1 g 0 G ASTROPCO A ( TOTAL ) 0.0 10.76 29.60 13.46 8.65 0.2 . O FHYSIDAE M 1 FHYSA (LPIL) 0.0 10.76 29.60 13.46 8.A5 3.2 h 0 EPHit1EROPTER A ( TOTAL ) 0.0 2.69 0.0 0.90 0.90 0.0 o O CAENIDAE 4s 10 C AENIS ( LPIL) 0.0 2.69 0.0 0.90 0.90 0.0 0 DIPTER A ICMATCCERA (TOTAL) 0.9 16.15 0.0 0 CHIRCtOMIDAE 5.33 5.30 .1 2 CRICOTOPUS ( LPIL) 0.0 5.38 0.0 1.79 2 1.79 0.0 GLYPTOTENDIPES (LPIL) 0.C 10.76 0.0 3.59 3.39 0.1 TOTAL 0.0 17952.09 2642.62 6864.93 5595.84 100.0 DIVERSITY (H PRIME) 0.0 0.22 0.69 0.30 0.00 DIVERSITY (J FRIt1E) 0.0 0.09 0.37 0.15 0.11 NUMrER CF TAXA 0 9 6 9 BCTTCM TIFE 0 ACOVE CCMFUTED USING sat'PLE IDS N 06021 26 t' 20 26023 26024 ,# q 26031 25032 26033 26034 26041 26040 26043 26044

                                                                                                                                                ,d
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NORTHERN STATES FOWER CCMPANY Table 2.2-7 (cont) PRAIRIE ISLAt"J NUCLEAR GENERATING PLANT MACROINVERTECRATE DENSITY (NU"SER PER SQUARE METER) HESTER-DENDY MULTIPLATE SAMPLOR WITHIN-SITE REFORT DISCHARGE JANUARY REL LS TAXA Y-1 Y-2 ' ' X S.E. AL% 0 Ct1IDARIA (TOTAL) 5.36 0.0 0 HYDROZOA 2.69 2.69 0.2 3 1 HYDRA ( LPIL) 5.38 0.0 MD 2.69 2.69 0.2 0 FLAT)HELMINTHES (TOTAL) 5.33 0.0 TURSELLARIA-(LPIL) 0.69 2.69 0.2 1 0 NEMERTINA ETOTAL) 5.!3 5.33 0.0 0.0 7'M 2.69 2.69 0.2 1 NEMERTINA (LPIL) 2.69 2.69 0.2 5.33 0.0 2.69 0 NEMATOD A (TOTAL) 2.69 0.2 172.23 0.0 86.11 E6.11 7.0 1 NEMATCDA (LPIL) 172.23 0.0 $ N 0 OLIG 2 CHAETA ( TOTAL) 86.11 86.11 7.0

  • 2222.82 0.0 1111.41 1111.41 8'r . 9 O NAIDIDAE M 1 NAIDIDAE (LPIL) 2155.54 H

O 0 TUDIFICIDAE 0.0 [1* gq

  • 1077.77 1077.77 87.2
  • 1 TUBIFICID AE ( LPIL) 67.08 0.0 33.64 33.64 0 AMFHIFCD A ( TOTAL) 0 HYALELLIDAE 2.69 0.0 /m *
  • 1.35 1.35 2.7 0.1 1 HYALELLA AZTECA 0 DIPTEPA NEMATCCERA (TOTAL) 2.69 59.20 0.0 0.0 FM 1.35 1.35 0.1 0 CHIRCNOMIDAE 29.60 29.60 2.4 2 CRYPTOCHIRONOMUS ( LPIL) g[;ll:D'y gg,I3 8.07 0.0 4.C4 2 CRICOTCPUS (LPIL) 4.04 0.3 40.37 0.0 "t4 '^t 20.13 2 FRCCLADIUS (LPIL) 20.18 1.6 2.69
                                                                                       ~

0.0 1.35 1.35 2 GLYPTOTENDIFES ( LPIL) 0.1 3 CHIRCNCMIDAE ( LPIL) 5.33 0.0 pc d* 2.69 2.69 0.2 2.69 0.0 u 1.35 1.35 0.1 TOTAL 2473.09 0.0 1236.54 1236.54 100.0 N DIVERSITY (H FRIME ) 0.87 0.0 0.43 C.43 q DIVERSITY (J FRIME ) 0.35 0.0 0.18 0.13 ffJMDER OF TAXA 12 0 @ BOTTCM TYPE O 12 N ABOVE COMPUTED USI G SAMPLE IDS

p. 2605i 26050 26053 26054 26061 26C62 26063 26064 DATE 03/14/79 PAGE NO 9 T600A;UA 9/28/77

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NORTHERN STATES PC'AER CCt!PANY Table 2.2-7 (cont) PRAIPIE ISLAND tiUCLEAR GENERATING PLANT MACROINVERTESRATE DENSITY (trJMSER PER SQUARE F1ETERI HESTER-DENDY NULTIPLATE SAMPLER WITHIN-SITE REPORT APRIL LS TAXA - REL STURGEON LAKE c X S.E. AB% 2  ; - 0 OLIGOCHAETA (TOTAL) 57.41 0 NAIDIDAE 57.41 -1.00 15.1 1 NAIDIDAE (LPIL) 50.23 k-0 TUDIFICIDAE ,

                                                                                                          '       50.23 -1.00   13.2 m.-              i 1     TUBIFICIDAE ( LPIL)                         7.18 0 BIVALVIA (TOTAL)                                3.59 g, . . J '               7.18 -1.00    1.9 N     0     SPHAERIIDAE                                                                                             3.59 -1.00    0.9 1.--

g 1 PISIDIUr1 (LPIL) 3.59 i 0 DIPTEP A NEttATOCERA (TOTAL) , 3.59 -1.00 0.9 319.34 ,G - 319.34 H 0 CHIRCNCMIDAE -

                                                                                                                        -1.00  84.0 O     2       CRICOTOPUS (LPIL)
  • 129.17 4, 129.17 2 TANYTARSUS ( LPIL) 63.17 -1.00 34.0 2 5 68.17 -1.00 17.9 CCR YNCNEURA ( LPIL ) 3.59 '

2 THIENEttANNIELLA '$-- ~ _ 3.59 -1.00 0.9 3.59 ,~* 3.59 2 PSECTRCCLADIL'S ( LPIL) -1.00 0.9 111.23 1.- 111.23 E CHIRCNOMIDAE (LPILI 3.59

                                                                                                                        -1.00  29.2 7,.          y     3.59 -1.00    0.9
                                                                                                -,y TOTAL                                            380.34                                                   -~~ 380.34 DIVERSITY (H PRIMEi                                 1.87                                                             -1.00 100.0 d ._ _ .          1.87 -1.00 DIVERSITY (J PRIME)                                 0.79                                              _ ^

NUMEER CF TAXA 0.79 -1.00 9  ? ,[.- BOTTCM TYPE 9 O 3 ADOVE cot 1PUTED USING SAMPLE IDS g 26151 26152 26153 N DATE O PAGE NO 03/14/79 2 T6 0 0 AG'JA 9/28/77 N C' N

NORTHEPN STATES POWER CCMPANr Table 2.2-7 (cont) FRAIRIE ISLAND h"JCLEAR CEMER ATINS PLANT M ACROIh"/ERTEERATE CEt: SIT r (h'JMDER FER SOUARE t'ET ER ) HESTER-CEt:DY t'ULTIPLATE S AMPLER WITHIN-SITE PEFCNT INTAKE APRIL LS TAXA X-2 X-3 x S.E. Ah 0 PLATYHELM!r4THES (TOTAL) .69 .0 '- 1.35 1.35 0.1 1 TURCELLAPIA-(LPIL) 2.69 0.0 [4-1.35 1.35 0.1 0 NIMERTINA (TOTAll 131.86 106.4a #N 109.17 0.69 8.5 1 t;Ett:R tit:A (LPIL) 0 NOMAT0]A (TOTAL) 131.06 106.43 'e md 109.17 0.69 8.5

10. 76 8.07 -

9.40 1.35 0.0 1 t;EttATCDA ( LPIL ) 10. 76 N' 8.07 9.40 1.35 0.6 0 CLIC0ctf AETA ( TOTAL) 731.97 1929.49 1330.73 593.76 C3<1 0 tRIDIDAE 1 N tIDID AE ( LPIL) 731.97 1909.49 I 1330.73 593.76 C3.1 0 GASTRCr00A (TOTAL) 0.0 2.69 # 1.35 1.35 0.1 9 0 FHiSIDAE y.e <

  • 1 FHTSA (LPIL)

N O DIPTERA NEMATOCEPA (TOTAL) 0.0 53.80 0.69 16.15 hpN, 1.35

                                                                                                                 !4.93 1.35 18.C*

0.1 2.3 h ps 0 CHIR CNO:!ID AE CRICOTCPUS ( LPIL) 2.69 f~ N. O 0.0 1.35 1.35 0.1 0 0 0 0 TANf1 A" SUS ( LPIL ) FARACHIPCt:0?t' FSECTRCCLADIUS ( LFIL) J S ( LPIL ) 29.60 8.07 13.46 8.07 0.0 5.33 [g 10.e4 4.04 9.42 10.76 4.04 4.04 1.0 0.3 0.6 3 CHIRC :0MID AE ( LPIL ) 0.0 0.69 1.35 1.35 0.1 0 ECTCFROCTA (TOTAL) 0.69 5.33 4.04 1.35 0.3 0 P LU; ? *.T E L LID A E #.,Q ' 11 PLUt1ATELLA REPENS 0.69 5.38 4.04 1.35 0.3 TOTAL 933.80 2003.27 ' 1511.03 577.03 100.0 DIVERSITY (H FRIME ) 0.97 0.50 0.75 0.03 DIVEPSITY (J FPIME) 0.47 0.30 0.33 0.09 NUMOE7 CF TAXA 9 8 11 EOTTCM TYPE O N N ACO'lE CCMPUTED USTNG SAPLE IDS 06171 06170 26173 06174 06161 06130 26133 06184 N DATE 03/14/79 Q FASE ?!O 5 Cp T600AGUA 9/08/77

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NORTHERN STATES POWER COMPANY Table 2.2 -7 (cent) PRAIRIE ISLAND NUCLEAR GENERATING PLANT MACROINVERTEERATE DENSITY (NUMBER PER SQUARE METER) HESTER-DENDY MULTIPLATE SAMPLER WITHIN-SITE REPORT pgy -.

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REL LS TAXA B-1 X S.E. AB% 1 k 2 2 MICROTE!!DIPES (LPIL1 PARACHIPC lCMUS ( LPIL) 3.57 21.53 g 3.59 21.53

                                                                                                  -1.00
                                                                                                  -1.00 0.0 0.1 2       GLYPTOTEt:DIPES ( LPIL)                64.59                 a-                 64.59 -1.00   0.3 2       EUKIEFFERIELLA ( LPIL)                154.29                %' ~.              154.29 -1.00   0.8 2       THIENEMANNIELLA                       222.45 2

222.46 -1.00 1.1 PSECTROCLADIUS (! PIL) 635.09 M 3 CHIRONOMIDAE (LPIL) 635.09 -1.00 3.2 670.97 r 670.97 -1.00 3.3 0 SIMULIIDA* I 2 SIMULIIDAE ( LPIL) 1977.04 1977.04 -1.00 9.8 ps 3 SIMULIID AE ( LPIL) 2181.56 2181.56 -1.00 10.9 W TOTAL 20086.08 D.- 20086.08 -1.00 100.0 DIVERSITY (H F11ME ) 2.31 2.31 -1.00 DIVERSITY ( J PRIML ) 0.52 0.52 -1.00 PU1EER OF TAXA 32 32 BOTTOM TYPE 0 ABOVE COMPUTED USING SAMPLE 105 26211 26213 26214 MISSED SAMPLE IDS 26212 N N DATE 03/14/79 m PAGE NC 4 T600 AQUA 9/28/77

3 3229 9009 031 100 061 00 0 0 006, 2 3,4,5 5 1 1 5 L% . EB 3 3nO2 2001 010 000 000 00 0 0001 01000000 RA 5 5 4 1 0 0000 0000 0D0 000 030 00 D 0000 000000D0 0 00 C0 00 00 CC0 000 0C0 0C C 0 000 0 0 0 0,0 0 C 0 E 1 1111 1111 111 111 111 11 1 1111 11111111 S - - - - - - - - - - - - - - - - - - - - - - - - - - - 0 0772 2993 975 697 734 99 8 9991 87637569 8 8330 0665 601 4,6 0 0 3,8 6, 6 3 66,65 9 2 6 8,. 5 1,. 4,. 1

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NORTHERtl STATES POWER COMPANY Table 2.2-7 (cont)

    -RAIRIE ISLAND N'JCLE AR GENERATIt4G PLANT MACR 0 INVERTEBRATE DENSITY (nut'SER PER SQUARE METER)

HESTER-DENDY MULTIPLATE SAMPLER WITHIN-SITE REPORT DISCHARGE MAY REL LS TAXA Y-1 Y-2 X S.E. ABX 6 7 0 CNIDARIA (TOTAL) 137.24 48.44 92.84 44.40 0.4 C HTCROZOA 1 HYDRA (LPIf 1 131.86 48.44 90.15 41.71 0.4 2 HYDRA ( LPIL) 5.38 J.0 2.69 2.69 0.0 0 PLATYMELMINTHE5 (TOTAL) 8.07 0.0 4.04 4.04 w.0 1 TURBE LLARI A-( LPIL ) 8.07 0.0 4.04 4.04 0.0 0 NEMERTINA (TOTALI 139.94 2.69 71.31 68.62 0.3 1 NEMERTINA ( LPI! ) 139.94 2 . t> 9 71.31 68.62 0.3 0 NEMATCDA (TOTAL) 91.50 34.98 63.24 28.26 0.2 1 NE*1ATOD A ( LPIL I 91.50 34.93 63.24 28.26 0.2 0 OLIGOCHAETA (TOTAL) 22244.35 16022.61 19133.40 3110.87 74.7 y 0 NAIDIDAE - 1 NAIDIDAE (LPIL) 22241.66 16022.61 19132.13 3109.53 74.7 M 0 TUBIFICIDAE 1.3F h p 1 TU3IFICIDAE ( LPIL) 0 GASTROPODA (TOTAL) 2.69 18.84 0.0 0.0 9.42 1.35 9.42 0.0 0.0 0 0 PHYSIDAE 1 PHYSA ( LPIL) 5.38 0.0 2.69 2.69 0.0 0 PLANO 2BIDAE 1 GYRAULUS ( LPIL) 5.38 0.0 2.69 2.69 0.0 1 GASTROF0DA (LPIL) 8.07 0.0 4.04 4.C* 0.0 0 ARACHNID A (TOTAL) 2.69 2.69 2.69 0.0 0.0 0 FRCSTICMATA 1 H1DR ACARINA ( LPIL) 2.69 2.69 2.69 0.0 0.0 0 ISOPCDA (TOTAL) 2.69 0.0 1.35 1.35 0.0 0 ASELLIDAE N 1 ASELLUS (LPIL) 2.69 0.0 1.35 1.35 0.0 N O AMT'HIPODA (TOTAll 5.38 0.0 2.69 2.69 0.0 CN O CRAN 00t4YCIDAE 5.38 0.0 2.69 2.69 0.0 1 CR ANS0!!YX CRACILIS 0 EPHEMEROPTERA 4 TOTAL) 48.44 309.47 178.96 130.52 0.7 SN O BAETIDAE N! 10 CENTROPTILUM ( LPIL) 10.76 0.0 5.38 5.38 0.0 N 10 BAETIS ( LPIL) 2.69 16.15 9.42 6.73 0.0 10 PSEUDCCLECtl ( LPIL) 0.0 204.52 102.26 102.26 0.4 10 CLCECH ( LPILI 0.0 5.TS 2.69 2.69 0.0 0 HEPT AGENIIC AE 10 STENOMEMA ( LPIL: 2.69 2.69 2.69 0.0 0.0 HEPTAGENII0 AE ( LPIL) 0.0 5.33 2.69 2.69 0.0 10 0 CAENIDAE 10 CAENIS ( LPIL) 26.91 5.38 16.15 10.76 0.1 10 EPHEMEROPTERA ( LPIL) 5.38 69.97 37.67 32.29 0.1 DATE 03/14/79 PAGE NO 23 T600AOUA 9/7A/77

t40RTHERN STATES FOWER COMPAtlY Table 2. 2 -7 (cont) PRAIRIE ISLAPO NUCLEAR GENERATING PLAT 4T MACROINVERTEERATE DENSITY (NUMSER PER SQUARE METER) HESTER-DEtOT MULTIPLATE SAMPLER WITHIN-SITE REPORT DISCHARGE MAY LS TAXA Y~I Y'2 REL X S.E. ABZ 6 7 0 COLE 05. ERA FOLYPHAGA (TOTAL) 0.0 2.69 0 ELMIDAE 1.35 1.35 0.0 1 STENELMIJ ( LPIL) 0.0 2.69 0 TRICHOPTERA ((OTAL) 1.35 1.35 0.0 228.74 8.07 118.41 0 dYDROPSYCHICAE 110.33 0.5 2 CHE sMATCPSYCHE ( LPIL) 0.0 2.69 1.35 1.35 0.0 0 HYDR JPTILIDAE 2 ON THOTRICHIA ( LPIL) 51.13 2.69 26.91 2 e.22 0.1 0 LEPTOCEPIDAE 2 CERACLEA (:ATHRIPSODES)( LPIL) 118.41 2.69 60.53 57.Bo 0 POLYCENTRCPOOIDAE 0.2 2 CYRtiELLUS ( LPIL) 48.44 0.0 S 24.22 2 FOLYCENTROPODIDAE 5.3S 24.22 0.1 0.0 2.69 2.69 3 TRICHOPTERA ( LPIL) 0.0 5.33 0.0 2.69 0 DIPTERA NEMATOCEPA (TOTAI.) 2.69 0.0 5473.62 6356.29 5914.95 441.33 23.1 0 CERATOPCOCNIDAE bJ 2 CEPATOPOGONIDAE (LPIL)

  • 21.53 2.69 12.11 9.42 0.0 O CHIRONC;1IDAE f

p 2 CHIPONOMUS ( LPIL) 2.69 0.0 1.35 1.35 0.0 2 CRTHOCLADIUS (LPIL) 2.69 bJ 0.0 1.35 1.35 0.0 2 CRICOTCPUS ( LPIL ) C) 212.59 1501.61 857.10 644.51 3.3 2 TANYTARSUS (LPIL) 29.60 379.44 204.52 174.92 0.8 2 DICROTEN3IFES ( LPIL) 142.63 113.02 127.83 14.80 0.5 2 POLYPEDILUM (LPIL) 13.46 94.19 2 ABLACESt1YIA ( LPIL) 53.82 40.37 0.2 201.83 26.91 114.37 87.46 0.4 2 PRCCLADIUS (LPIL) 13.46 2.69 2 PAR ACHIRC"CMUS ( LPIL) A.07 5.33 0.0 325.62 10.76 ' 168.19 2 GLY.:TOTEt0IPES ( LPIL) 947.26 157.43 0.7 113.02 ' 533.14 417.11 2.1 2 THIENEMAt04IELLA 13.46 349.84 2 PSECTROCLADIUS ( LPIL) 181.65 168.19 0.7 3048.98 2249.73 2649.35 2 NILOTAtiTPUS ( LPIL) 2.69 399.62 10.3 8.07 5.38 3 CHIRCNot1IDAE (LPIL) 2.69 0.0 N 495.16 473.63 484.39 2 CHIPONOMIDAE ( LPIL) 10.76 1.9 0.0 2.69 N O SIMULIIDAE 1.35 1.35 0.0 O 2 SIMULIIDAE (LPIL) 0.0 640.47 320.24 3 SIMULIIDAE (I PIL) 0.0 320.24 1.3 387.51 ' 193.76 193.76 0.8 0 ECTOPROCTA (TOTAL) 18.84 10.76 N 0 LOPHOFCDIDAE 14.80 4.C4 0.1 N! 8 PECTINATELLA MAGNIFICA 8.07 5.33 6.73 1.35 0.0 CO O PLUMATELLIDAE 11 PLUMATELLA REPENS 10.76 5.38 8.07 2.69 0.0 TOTAL 28420.32 22793.67 25609.49 2810.82 ICO.0 DATE 03/14/79 PAGE NO 24 be

NCRTHERN STATES POWER COMPANY Table 2.2 -7 (cont) PRAIRIE ISLAND NUCLEAR GENEPAT!NS PLANT F1ACROINVERTEERATE CEtiSITY (? cia:R P:P SQUA'7E F1ETER ) ep HESTEP-CEt:DY MULTIPLATE SAMPLER N WITHIN-SITE REPC9T N JULY REL LS TAXA B-1 X S.E. AEX N O CNICARIA (TOTAL) 1 N 2.69 t* 2.69 -1.C0 0.0 0 Hf0POZOA vex 11 CC73fLOPHCRA LACUSTRIS 2.69 ?ii 0.69 -1.03 0.0 0 NEMAT 00A (TOTAL) s.60 ['*M# [ 29.00 -1.C0 0.2 1 NEMATCDA (LPIL) 09.60 k %'m - 29.63 -1.03 0.2 0 OLICCCHAET A ( TOTAL ) 196.45 CZ2 U 196.45 -1.C3 1.2 NAIDIDAE 0 172.23 (*[,h 'j ^7 1 t:AIDIDAE (LPILI 172.23 -1.C0 1.C 0 TUCIFICIDAE

                                                                                             \ >j   [ .

1 TUCIFICIDAE (LPIL) 01.53 - 01.53 -1.C3 0.1 0 LUM:7ICULICAE k,.b. ~) l Lt"CRICULIC AE ( LPIL) 2.69 '-[4 2.69 -1.03 0.0 0 AT ACHNID A ( TOTAL ) 0 F?OSTICMtTA 56.51 k(t? CC ,)

                                                                                               ?FJ                 36.cl   -1.C3   0.3 1          HYDR ACf 7 int ( LPIL)                    56.51                            .?S                  E6.51  -1.00    0.3 M

g 0 ISOP00A (T0TAL) 0 ACELLIDfE 1o.15 Dj 16.15 -1.C3 0.1

1 ASELLUS ( LPIL) 13.46 13.46 -1.C3 0.1 3-*

N 1 ASELLIDAE (LPIL) 0.67 g't R7 g.s, 2.69 -1.03 0.0 N O A'*" iI F03 A (TOTAL) 5.33 *4 l% 5.33 -1.C3 0.C 0 HrALELLIDAE '* k'[ l HrALELLA AZTECA 0 EPHENEPCPTECA ( TCTAL ) 5.3t 923.34

                                                                                    '%Q g.47 5.28 9:3.34
                                                                                                                          -1.00
                                                                                                                          -1.J3 0.0 5.6 0      SIPHLONU7IDAE                                                      NN'-

10 0 ICCNTCHI A ( LPIL) EAETIOfE 5.33 "g ?,'" j)- 5.33 -1.C3 0.0 g 10 B AE Tls ( LFIL) 10.7e 10.76 -1.03 0.1 0 HEPTACENIIDAE ~ 10 STEtSEMA ( LPIL) 302.93 300.93 -1.C0 2.0 0 TPICCRYTHIDAE 10 TRICC7 t TF00ES ( LPIL) 21.53 01.53 -1.C0 0.1 0 CAENIDAE 10 CAENIS ( LPIL ) 476.3: 476.30 -1.00 2.9 10 EPMEMEPCPTEP A ( LFIL) 33.42 83.42 -1.00 0.5 0 PLECCPTERA ( TOTAL ) 5.33 5.33 -1.c3 0.0 0 PE P LIC AE 10 FERLID'E ( LPIL) 2.69 0.69 -1.C? 0.0 0 ISCFZRLIDAE 2 ICOPE7tA (LPIL) 2.69 0.69 -1.00 C.0 0 TRICHCPTERA (TOTAL) 4C41.93 4041.93 -1.C3 04.6

   .,  O      H T C ?C.'S T CHID AE 2         Hr:PCF5tC:tE C7PIS                       1544.67                                               1544.67   -1.03   9.4 DATE             03/15/77 PfCE NO                    4 tar
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t!CRTHERN STATES PCER CCMDANT Table 2.2 -7 (cont) PRAIRIE ISLAN3 NUCLEAR GEN!PATIH3 PLANT MACRDItWERTEE7 ATE DENSITY (NU".2ER PER SQUtRE METER) HESTER-DENDY f*ULTIPLATE sat *PLER WITHIN-SITE FEPnRT , JULY REL LS TAXA B-1 X S.E. AE2 1 2 HYD70 PSYCHE ( LPIL ) 877.29 877.29 -1.00 5.3 3 HYD2 CPS 1CHE (LPIL) 29.60 29.60 -1.C0 0.2 2 CHEUMATOPS1CHE ( LPIL ) 1005.60 10:5.60 -1.00 7.3 3 C!: ATCPSTCEE ( LPIL ) 37.67 37.67 -1.00 0.0 2 FOTAttYIA ( LPIL ) 16.15 16.15 -1.C0 0.1 2 HYDROPSYCHID AE ( LPIL) 26.91 06.91 -1.00 0.2 0 2 HiCROPTILIDAE ACRAYLEA (LPIL) 2.69 Q

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2.69 -1.00 0.0 0 ERtCHYCENTPID'E 2 ER ACH)CENTRUS ( LPIL ) 2.69 / ' ,,? 0.69 -1.00 0.0 0 FDLYCENTPCPOOIDAE k wg.J 2 NEU9ECLIPSIS ( LPIL ) 3 TRICHCPTER A ( LPIL) 5.38 Og'k' 5.33 -1.00 0.0 287.94 N N 2C7.94 -1.00 1.8 y 2 TRICHO? TERA ( L PIL) 0 DIPTER A NEttATCCEP A (TOTAL) 5.33 11106.02 gd *

  • 5.33 11106.02
                                                                                                      -1.00
                                                                                                      -1.C0 0.0 67.6 N      O     CHIPCt:CitID AE                                                        *
  • h 2 CRICOTOFUS ( LPIL) 009.90 209.93 -1.00 1.3 N 2 TANYTAPSUS ( LPIL) 473).S3 4733.53 -1.00 08.3 LJ 2 DICPOTEt:DIPES ( LPIL) 64.59 4= 64.59 -1.00 0.4 2 FOLYFEDILUM ( LPIL) 2090.10 OA f 2290.10 -1.00 13.9 2 ABLASE!MfIA (LPIL) 551.67 Uk 551.67 -1.00 3.4 2

2 PAP ACHIRCM0"US ( LPIL) GLYPTCTEt:3IPES ( LPIL) 0.69 1953.71 Dib kp' 2.69 1953.71

                                                                                                      -1.00
                                                                                                      -1.00 0.0 11.9 2        EUKIEFFERIELLA (LPIL)                  37.67                                     37.67 -1.00  0.2 2        THIEt:EMAUNIELLA                         2.69             -

2.69 -1.00 0.0 2 PSECTRCCLADIUS ( LPIL) 1003.77 1003.77 -1.00 6.1 2 NIEFFEPJ'LUS 04.22 g%<Ag,%g 24.02 -1.00 0.L 3 CH!rCNOMIDAE (LPIL) 215.09 215.09 -1.00 1.3 N

      . SIMULIIDiE                                               %*I 3       sit;ULIUM ( LPIL)                       13.46           .      D                  13.46 -1.00  0.1 N   2        S1MULIUM ( LPiL )                        2.69       p 4,                          2.69 -1.C0  0.0 0 DIPTER A CR ACHYCEPA ( TOTALI                 26.91        y                            06.91 -1.00  0.0 0     STRATICMfIDAE                                               ,' ?

O NEMDLETUS 0.69 0.69 -1.00 0.0 N O RHAGICM*DAE Q 2 ATHEPIX 0.69 2.69 -1.00 1.0 _ 0 EMPIDIDAE E t*PIDID AE (LPIL) 21. M 01.53 -1.C0 1 0 ECTCPRCCTA (TOTAL) 18.04 18.E4 -1.00 v.1 0 LCiUCTCDIDAE 8 PECTINATELLA MACHIFICA 13.46 13.46 -1.00 0.1 0 PLUMATELLICAE DATE 03/15/79 FACE NO 5 T600AGUA 9/28/77

NCRTHEPN STATES POWER CCMPAt4Y Table 2.2 -7 (cont) PRAIRIE ISLAtiD tiUCLEAR GENERATING PLANT F1ACROIt4VERTEER ATE DENSITY (NUMOER PER SOUARE METER) HESTER-DENDY MULTIPI ATE SAMPLER WITHIti-SITE REPORT JIJLY LG TAXA B-1 REL X S.E. A"% 1 11 PLUMATELLA REPEtiS 2.69 0 0.69 -1.00 0.0 PALUCICELLIDAE 11 PALUDICELLA ARTICULATA 2.69 0.69 -1.00 0.0 TOTAL 164 6.04 DIVERSITY (H PRIME) 16426.24 -1.00 100.0 3.36 3.I6 -1.00 bJ DIVEPSITY () FRIME) 0.71 NUMDER OF TAXA 0.71 -1.00 y DOTTOM TYPE O 45 43 H N ACOVE COMPUTED USINS SAMPLE IDS & ,- e 06081 06202 26083 26084 'Q. A; f,?',%.> Q*) DATE 03/15/79 C, .. - PACE tio 6 +' 9 T600AOUA 9/2C,/ 77

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  • 2.2-us 276 284

NORTHERN STATES PCWER CCMPANY T 1ble 2. 2 -7 (cont) FP AIPIE ISLAND !E' CLEAR GENEP ATIN3 PLANT MACROI'NERTECP ATE DENSITY (tFJ3ER PER SOUAPE METER) etE STER-D E t;D T MULTIPLATE SAMPLER 64ITHIN-SITE REPCRT INTAKE JULY FEL LS TAXA X-1 X-2 X-3 X S.E. ASX 3 4 5 0 t:EMATOD A (TOTAL) 16.15 53.82 376.75 ,, 143.91 114.44 0.6 1 NEMATCDA (LPIL) 16.15 53.82 376.75 c 148.91 114.44 0.6 0 ElCCFCCCT A 0.0 43.06 21.53 *- 21.53 12.43 01 0 EN00FRCCTA ' -- 11 U7Ns,TELLA GRACILIS 0.0 43.06 21.53 g 21.53 12.43 0.1 0 CLIC0CH AETA (TOTAL) 446.72 118.41 376.75 313.96 99.E4 1.3 0 NAIDIDAE 1 NAIDID AI ( LPIL) 446.72 118.41 376.75

                                                                                                     ..           313.96    99.e4  1.3 0 GASTPDFCDA (TOTAL)                             0.0       21.53           10. 7',
  • w 10.76 6.21 0.0 0 PHISIDAE ." -

1 PH f S A ( LPIL ) 0.0 21.53 10.76 10.76 6.21 0.0 0 A9ACHNIDA ('OTAL) 00 0.0 32.29 10.76 10.76 0.0 M 0 FROSTTCMATA

  • 'J 6 y 1 HID7 AC ARIriA ( LPIL ) 0.0 0.0 32.29 10.76 10.76 0.0 l 0 ISOTCDA (TOTAL) 0.0 t J 10.76
                                                                                                      .'*            3.59    3.59  0.0 P       0      ASELLIDAE ASELLUS ( LPIL)                         0.0        0.0            10.76                              3.59    3.59  0.0 4
      'Oh,b,'THIPCDA (TOTAL)                            0.0        0.0             5.33
  • 1.79 3.79 0.0 0 HYALELLIDAE .j 1 HYALELLA AZTECA 0.0 0.0 5.28 , 1.79 1.79 0.0 0 EFHTMEROPTERA (TOTAL) 322.93
  • 161.46 *I 182.99 75.3) 0.7 0 SIFHLCNUPIDAE 10 SIPHLCNU7ID AE ( LPIL) 10.76 0.3 i< 3.59 3.59 0.0
                                                                                                        *4k 0      EAETIDAE 10         E AETIS ( LPIL)                        10.76       0.0            10.76                              7.13    3.59  0.0 10      BAETICAE ( LPIL)                          5.33       0.0              0.0                              1.79    1.79  0.0 0      HEPTACEHIIDAE 10         STENCNEMA ILPIL)                      37.67      21.!3           26.91                            28.70     4.75  0.1 0      TRICCatTMIDAE 10         TP7COU THODES ( LPIL)                  5.33       0.0              0.0                              1.79    1.79  0.0 0      CAENIDAE N   10         CAENI5 ( LPIL)                       252.96      43.06          123.79                           139.94    61.13   0.6
  @    0 000 NATA (TOTAL)                               5.33       0.0              0.0                               1.79   1.79   0.0 0      CCENA59:CNIDAE 10         ENALLACMA (LPIL)                       5.38       0.0              0.0                               1.79   1.79   0.0 0 TRICFOPTE7A (TOTAL)                        2136.71       E6.11         2551.13                          1591.32   762.05  6.6 O    O      H1C R CP3105f!D A E U1   2         H1C70rSYCHE C7RIS                   1264.80      53.a2         1544.67                           954.43   457.50   3.8 2        HiCPCPE tC!iE ( LPIL)                301.40       0.0           263.72                           183.37    94.81   0.8 2        CHEUM*, TOPS 1CHE (LPIL)             139.94        0.0          172.23                           104.05    52.e6   0.4 2     H10 POPE YCh!O AE ( LP!L)                 0.0       10.76           59.20                            23.32    18.21   0.1 3     H10RCPSiCHIDAE (LPIL)                    4?.06       0.0              0.0                            14.35    14.35   0.1 CA'E          03/15/79 RAGE NO              17 T600AOUA      9/23/77

NORTHERN STATES POWER COMPANY Table 2.2-7 (cont) PR AIRIE ISLAtc tfJCLE AR GENER ATItG PLANT MACROINVERTEERATE DENSITY ENUM"ER PER SOUARE METEP) HESTER-DEPOY t"ULTIF; ATE SAMPLER WITHIN-SIT- grPCRT INTAKE JULY PEL LS TAXA X-1 X-2 X-3 x S.E. Asx 3 4 5 0 LEr~~" RIDAE 2 LEP1v, -NAE ( LPIL) 0.0 0.0 10.76 3.59 3.59 0.0 0 FOLYCENTRCPODICAE 2 CYPNELLUS ( LPIL) 75.35 0.0 5.33 26.91 24.27 0.1 2 NELTECLIFSIS (LPIL) 209.90 10.76 204.52 141.73 65.50 0./ 2 FOLYCENTPCPCOIDAE 0.0 0.0 37.67 12.56 12.56 0.1 3 TRICHOPTERA (LPIL) 91.50 10.76 240.20 114.E2 67.62 0.5 2 TRICHCPTERA ( LPIL) 10.76 0.0 10.76 7.13 3.59 0.0 0 DIPTEP A net 1ATCCER A (TOTAL) 15710.43 26716.89 25468.23 22631.65 3479.43 90.7 0 CE?ATOPCSONIDAE 2 CER ATOPCSC'4ID AE ( LPIL ) 0.0 0.0 10.76 3.59 3.5) 0.0 0 CHIFONCM!DAE 2 CRTHOCLADIUS ( LPIL) 21.53 0.0 0.0 b_ m "' 7.1d 7.13 0.0 2 CRICOTOPUS ( LPIL) 145.30 0.0 473.63 f 206.31 140.03 C.8 N 'y 2 2 TANYTA? SUS ( LPIL) DICPOTENDIPES ( LPIL) 3304.63 193.76 3433.80 4Q 2310.73 1059.14 9.3 2 FCLYPEDILU'1 ( LPIL) 263.72 430.57 333.69 161.46

  • qy ~

250.96 54.01 1.0 g 32.29 893.82 453.89 253.42 1 p 2 A3 LACE!:1rI A ( LPIL) 177.61 10.76 118.41 M 102.26 s8.24 0.4 N O 2 PRCCLADIUS ( LPIL) 10.76 0.0 0.0 W3 3.59 3.59 0.0 2 COR)NONEU?A (LPIL) 0.0 0.0 5.33 gwp 1.79 1.79 0.0 2 PAP ACHIRONO'*US ( LPIL ) 21.53 91.! 3 26.11 ~ 43.06 21.53 0.0 2 GLYPTOTENDIFES ( LPIL) 9693.60 23042 e4 18772.37 *f 17433.10 4137.27 69.9 2 THIENEMINNIELLA 30.29 21.53 102.26 52.03 25.31 0.2 2 FSECTRCCLADIUS ( LPIL) 812.70 86.11 457.43 . ...

                                                                                                                        . 450.10    209.77    1.8 2         GCELPICHIPCNOMUS                        32.29          0.0             32.29         -8         . . ,       21.53     10.76    0.1 3     CHIPCN0'1IDAE (LPIL)                      758.E8      2163.60             90" 58                         -    1077.36    445.06   5.1 0      sit'ULIIC t E                                                                            Wf.

2 SIMULIU:t ( LPIL) O ECTCFPCCTA (TOTAL) 0.0 0.0 10.76 43.06 5.33 26.91 b5 wA 5.38 23.30 3.11 12.56 0.' 0.1 0 PLUMATELLIDAE 11 PLU* TATE LLA REPENS 0.0 43.06 26.91 23.32 12.56 0.1 5 N TOTAL 18633.30 27147.45 29041.94 D9 24942.56 3199.20 100.0 DIVERSITY IH PPIME) 2.45 0.76 2.07 gy 1.76 0.51 @ DIVEc5ITY (J F?IME) 0.53 0.00 0.46  ;;;;;,, 0.41 0.11 trJMSER CF TAXA 29 21 34 40 BOTTOM TYPE rv, O j y CO ABOVE CCMPUTED l'3I'l0 SAM'3LE IDS f%""" p Ov301 06302 26303 26304 pD 26311 06312 26313 0' 314 Ot>301 06300 2o303 26304 DATE 03/15/79 PACE NO IS T600AOUA 9/23/77

NORTHERN STATES PC'iER . CCt'P'NY Table 2.2-7 (cont) PRAIRIE ISLAt3 t;UCLEAR CENERATING PLANT MACRCINVERTEEPATE DENSITY (t"JCER PER SOUARE METER) HESTER-0EtGY MULTIPLATE S W LEP WITHIN-SITE REPORT DISCHARGE JULY LS TAXA Y-1 Y-2 REL x S.E. A;x 6 7 0 NEMATCO A (TOTAL) 156.03 301.40 1 NEMATCOA (LPIL) 22S.74 72.66 1.0 156.03 301.40 223.74 0 Et;20P20CTA 16.15 72.66 1.0 0.0 8.07 0 Eh00GOCTA 8.07 0.0 11 !7NATELLA G?ACILIS 16.15 0.0

  • 8.07 0 CLIGCCHAETA tTOTAL) 8.07 0.0 45.44 2335.84 1172.14 1143.73 0 NAIDICAE .

5.0 1 MIDID AE ( LPIL1 A* 49.44 2335.84 1192.14 1143.70 0 HIRUDINEA (TOTAL) 0.0 10.76 5.0 0 EPPOE0ELLIOtE .. # 5.33 5.33 0.0 1 EPPCODELLA (LPIL) 0.0 10.76 0 ARACHNID A (TOTAL) 5.33 5.33 0.0 0.0 43,06 21.33 0 FROSTIOMATA 21.53 0.1 N 1 HfDPACIPINA (LPIL) pp O AMP 91FCOA (TOTALS 0.0 43.06 W 21.53 21.53 0.1

                                                          ?0.76        c.0                        f .~ w 0      HYALELLIDA.                                                                                     5.33     5.35  0.0 g           1         HfALELLA AZTECA                      10.76        rJ                 '%

N 5.33 5.38 0 E FF EfC FO P TEP A (TOTtL) 0.0 C 10 0 SIFHLCNURIDAE 231.43 231.43 fM 231.43 0.00 1.0 ISON1 CHI A ( LPIL) 0.9 5.33 O BAETICAE 2.69 2.69 0.0 10 PSEUCOCLEON ( LPIL) 0.0 5.33 .,g" A g' 2.69 10 BAETIDAE (LPIL) 5.33 ' 2.69 0.0 0.0 '.69 0 NEPTAGENIIDAE 2.69 0.0 10 STENONEMA (LPIL) 48.44 91.50 [M . . . 69.97 21.33 0.3 0 TPICC'? r THIC AE 10 'RICC7YTH00ES ( LPIL ) M .I 0 CAENICAE 0.0 10.76 b#_ 5.33 5.33 0.0 1" CAENIS (LPIL) 177.61 86.11 f>-MJ O EFHEMEROP! EPA tLPIL) 0.0 N 131.86 45.75 0.6 32.29 16.15 N O C00 NATA (TOTAL ) 5.28 16.15 0.1 0.0 2.69 0 CCEHAGRIONICAE 2.69 0.0 10 ENALLACMA (LPIL) 5.33 0.0 CN 0 TRICH 0PTEPA (TOTAL) 533.21 2066.74 2.69 2.69 0.0 0 HtCTCPStCHICAE 1302.43 7d4.26 5.5 N 2 H1C?O?SYCHE CPUIS 150.70 1103.34 627.02 476.32 2.7 2 HYCROFSYCHE f LPIL ) 37.67 197.14 2 CHEUMTCTSY C!iE ( LPIL) 118.41 50.73 0.5 N 10.76 2S5.25 143.01 137.24 0.6 2 POTAMYIA (LPIL) 0.0 37.67 2 HYCOOFSYCHIOAt ( *.PIL ) IS.C4 18.84 0.1 10.76 21.53 16.15 0 FC L Y C E N! R C"'00 !0 A E 5.33 0.1 2 CYPNELLUS (LPIL) c6.C3 0.0 43.44 43.44 0.0 DATE 33/15/79 PACE NC 23 T600A00A 9/08/77

NORTHERN STATES FO'.;ER COMP M Tabla 2.2-7 (con t') FR AIRIE ISLAt:0 t;UCLEA9 CEMEPATING PLANT MACPOINVERTf ERATE DEM5ITY (t:U"EER FER SOUAFE METER ) HESTFR-CEN3Y ??JLTIPLATE SAMPLER WITHIN-Sl:E FEFORT DISCHARGE JULY LS PEL TAXA Y-1 Y-2 x 5.E. Arx 6 7 2 NEU7ECLIPSIS ( LPIL) 83.73 215.29 145.01 6i 28 J.6 2 POLYCENTRCFC3IDAE 5.33 0.0 2.69 2 . t, "* 0.0 3 TRICHCPTE?A ( LPIL ) 145.32 172.23 2 TRICEGP! ERA (LPIL) 153.77 13.46 0.7 0.0 32.29 16.15 0 DIPTER A hTMATCCERA (TOTAL) 16.15 C.1 19268.00 21969.84 57- 20613.93 1350.91 87.2 0 TIPULIDAE 3 TIFULIJ4E (LPIL) 0.0 10.76 -N 0 CHIPCNOM!DAE 5 33 5.38 0.0 2 C7THCCLADIUS ( LPIL) 0.0 113.02 ' 56.51 56.51 0.2 2 CRICOTCPU$ (.FIL) 16.15 505.9' ..A 2 TANr TA.7CU3 ( LPIL )

                                                                                                            '41.03    244.69         1.1 279.87      6 7C6.E6        'e       --

2 DICROTEM3IFES (LPIL1 3533.3/ 3:53.50 14.9 29i 3 339.07 <g 314.C5 24.22 1.3 2 FOLY Fw'.U'1 ( LPIL ) 772 1410.12 A ; ./ A 2 ABL ANS!1(I A ( LPIL ) 75d.19 653.93 3.2 e3.73 134.55 1:7.e4 26.91 0.5 2 FACHICO:1US ( LFIL) 10.75 32.29 21.53 f 10.76 0.1 M 2 2 c YPTOTEt:3IPES ( LPIL) EU'<IEFFE?IELLA (LPIL) 17E61.89 0.0 10516. f. 3 37.67 W h gr+) 14039.23 3522.60 57.4 ( 2 THIE NE!UM .IELuA

18. E 4 13.e4 0.1 H 10.76 E6.ll 43.44 37.67 0.2 2 PCECTRCCLADIUS ( LPIL ) 16.15 446.70 N 231.43 215.29 1.0 2

3 GCELDICHIRCNCUS CHIRCNC: TID AE ( LPIL ) 0.0 893.02 177.61 1216.36 [4@ ged 23.21 1057.59 30.81 153.77 0.4 4.5 2 CHIFC':CMIDAE (LPIL) 0.0 5.33 2 69 0 SIT.U LIID '.E 2.69 0.0 3 SIMULIU:1 ( LPIL ) 0.0 16.15 .(N 8.07 8.07 0.0 2 sit'ULIU'1 ( LPIL ) 0.0 134.55 0 ECTOF20CT A (TOT!L) 7%9 67.23 67.28 0.3 21.53 16.15 M 10.e4 2.69 0.1 11 0 PLLM ATE LLID AE PLUMATELLA REPENS 21.53 16.15 M( g M 18.04 2.69 0.1 TOTAL 20095.99 26975.21 g pd DIVERSITY (H FRIME) 23635.60 3339.61 100.0 0.99 2.79 1.89 DIVERSITY IJ PRIME) 0.93 N 0.24 0.61 pt 3.42 0.18 t!UMCER CF TAXA 27 33 3? BCTTC!1 TYPE 0 CN ABOVE CCMPUTED US!t:G S AP'PLE IOS g3 26331 26332 26333 26334

                        .6341        263'2 26343    26344 Q                                      4 CC)                                                                        DATE       03/15/79 PACE NO                 C+

T600ACUA 9/087/7

NORTHERN STATES PCLER COMPANY Table 2.2-7 (cont) PRAIRIE ISLAND NUCLEAR GENERATING PLANT MACROIh"vIRTESRATE DENSITY (NUMOER PER SQUARE METER) HESTER-C(NDY MULTTFLATE SAMPLEk WITHIN-SITE PEPCRT AUGUST REL LS TAXA B-1 X S.E. AS7. 1 0 PLATYHELMINTHES (TOTAL) 10.76 10.76 -1.00 0.1 1 TUR BE LLA RI A-( LPIL ) 10.76 10.76 -1.00 0.1 0 ARACHNIDA (TOTAL) 118.41 118.41 -1.00 0.6 0 PR0 STIGMATA 1 H1DRACARINA (LPIL) 118.41 ~- ' 118.41 -1.00 0.6 0 EPHEMEROPTER A ( TOTAL ) 1453.18 '

                                                                                            ~

1453.18 -1.00 7.6 0 SIPHLONURIDAE 10 .iSONYCHIA (LPIL) 21.53 21.53 -1.00 0.1 0 BAETIDAE 10 SAETIS (LPIL) 796.56 E.L. . ' = 796.56 -1.00 41 0 HEPTAGENIIDAE -' 10 STENONEMA (LPIL) 604.33 604.33 -1.00 3.0 ga 0 CALNIDAE e 10 CAENIS (LPIL) 10.76 - g 10.76 -1.00 0.1 bJ 0 TRICMCPTERA (TOTAL) 14940.79 ^""" I 14940.79 -1.00 77.6 O HYDROPSYCHIDAE - -

  $       2       H1 DROPS 1CHE CPRIS                   4553.08                               {5%     4553.08 -1.00 23.7 ts         3       HYDR 0 PSYCHE ( LPIL )                 581.07                                        531.07 -1.00  3.0 2       HYDRCPSfCHE (LPIL)                    1940.33                   EECCU UI            1948.33 -1.00 10.1 2       CHEUMATOPSYCHE (LPIL)                 3009.08                                       3209.08 -1.00 16.8 3       CHEUM ATOPSYCHE ( LPIL )                 64.59                  ,(                    64.59 -1.00  0.3 2     HYC?CPSYCHIDAE ( LPIL)                  4400.58                   ,             ,7,   4400.53 -1.00 22.9 0     HYDP0"TILIDAE 10       AGRAYLEA (LPIL)                          10.76                   East'jsJ             10.76 -1.00  0.1 0     LEPTOCERIDAE                                                       fff          -*s 3       NECTCPS1CHE ( = LEPTCCELLA)( LPIL )      10.76                                        10.76 -1.00  0.1 0     POLiCENTROPODIDAE 2     POLYCENTRCPODIDAE                          01.53                                        01.53 -1.00  0.1 3 TRICHCPTERA (LPIL)                           118.41                                    i 0 DIVTEPA NEMATOCEPA ( TOTAL )                2436.54

{- u 118.41 2466.54

                                                                                                              -1.00
                                                                                                              -1.00 0.6 10.9 0     CHIRONOMIDAE IN.}  2       CRICOTCPUS ( LPIL)                       30.29                                        30.09 -1.00  0.0
    's%j  2       TANfTAREUS fiPIL)                      667.33                                        667.33 -1.00  3.5 C33,  2       POLYPEDILUM ( LPIL)                   1453.18                                       1453.18 -1.00  7.6 2       A"LAEESMflA (LPIL)                      43.06                                         43.06 -1.00  0.0 2       GLYPTOTENDIPES ( LPIL)                   01.53                                        01.53 -1.00  0.1 IN)   2       THIENEMANNIELLA                          10.76                                        10.76 -1.03  0.1

(;C) 2 PSEPTRCOLADIUS ( LPIll 004.50 004.50 -1.00 1.1 s g) 2 CHIRONCMID AE ( LPIL ) 53.80 53.80 -1.00 0.3 0 DIPTERA 09 ACHYCER A ( TOTAL) 036.51 026.81 -1.00 1.0 0 EMPIDISAE 3 EMPIDID AE ( LFIL) 30.09 32.09 -1.00 0.0 DATE 03/02/79 PAGE NO 3 T630 AQUA 9/03/77

NORTHERif STATES FC'AER rCMPANY Table 2.2-7 (cont) PRAIRIE ISLA!C NUCLEAR GENERATIllG PLAllT MACROINVERTECRATE DENSITY (f.W PER FER SCUARE METER) HESTER-CEtCY MULTIPLATE SAMPLER WITHIN-SITE REFORT AUGUST PEL LS TAXA 3-1 X S.E. AC% 1 2 EMPIDIDAE ( LPIL) 004.50 204.50 -1.00 1.1 TOTAL 19046.47 19046.47 -1.00 l' .0 OIVERSITY (H PRIME) 0.87 0.87 -1.00 ?; DIVERSITY (J FRIME) 0.74 0.74 -1.00 NUME<ER OF TAXA 03 03 M BOTTC11 Tt FE O ABOVE COMPUTED USING SAMPLE IDS M 26351 06352 06353 26354 DATE 03/02/79 PAGE NO 4 T600AGUA 9/28/77 h 4eg a f- ox w w //

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NORTHCPN STATES PCWER COMPANY Table 2.2 -7 (cont) PRAIRIE ISLAND h"JCLE AR GENERATING PLANT MACR 0aHVERTEEPATE DENSITY (NUr"EER PtR S LARE METER) HESTER-DENDY MULTIPLATE SAMPLER WITHIN-SITE REPORT AUGUST

                                                                                                                       -          PEL LS        TAXA                                      STURGEON LAS,E                                            X    S.E. AS%

2 0 OLIGOCHAETA (TCTAL) 64.59 64.59 -1.00 0.4 0 NAIDIDAE 1 NAIDIDAE (LPIL) 64.59 64.59 -1.00 0.4 0 ARACHNIC A (TOTAL) 333.69 333.69 -1.00 2.2 0 P70 STIGMATA 1 HALACAhIDAE 64.59 64.59 -1.00 0.4 1 HTCPACJ 4INA ( LPIL) 069.11 069.11 -1.00 1.8 0 EPHEMERCPTER A ( TOTAL) 613.56 613.56 -1.00 4.0 0 BAETIDAE 10 BAETIS (LPIL) 344.46 344.46 -1.00 0.3 0 HEPTAGENIIDAE 10 STENCNEMA (LPIL) 236.81 236.81 -1.00 1.5 0 CAEN!DAE bJ 10 CAENIS ( LPIL) 32.29 30.09 -1.00 0.2 O TRICHCPTER A (TOTAL) 9046.49 9046.49 -1.00 60.4 (. g 0 HYDRCPSYCHIDAE 1943.33 Fs LJ 2 3 e nROPS;CHE CPRIS n.JPCPSYCHE (LPIL) 1943.33 376.75 i[[[[[7 376.75

                                                                                                                           -1.00
                                                                                                                           -1.00 12.7 0.5 ld         2       HYCPCPSYCHE (LPIL)                     1463.94                                    .             1463.94  -1.00    9.6 2100.56                                                  2100.56 2       CHEUMATOPSYCHE ( LPIL)                                                             .                     -1.00  13.9 3       CHEUMATOPS1CHE ( LPIL)                  118.41                                                   118.41  -1.00    0.3 2       POTAM11 A ( LPIL)                       150.70                                                   150.70  -1.03    1.0 2     HYCDCPS(CHIDAE (LPIL)                    1733.05                                                  1733.05  -1.00  11.3 0     POLYCENTPOP00IDAE 2       NEUTECtIPSIS tLPIL)                    1043.6%                             .

1048.65 -1.00 B.2 3 NEUPECLIPSIS ( LPIL) 2 TRICH 0PTEPA (LPIL) 75.35 10.75 g -{{[g; 75.35 10.76

                                                                                                                           -1.00
                                                                                                                           -1.00 0.5 0.1 3 DIPTERA NEMATOCERA (TOTAL)                   4994.61                                                  4994.61  -1.00  30.6 0     CHIRONCMIDAE 2       TANYTARCUS ( LPIL)                      808.85                '

803.85 -1.00 5.4 2 POLYPEDILUM (LPIL) 0777.18 - . ' 0777.18 -1.00 18.1 INg ) 2 ASLABESMrIA (LPIL) 118.41 . 118.41 -1.00 '0 . 8 sgs 2 GLYPTOTENDIPES ( LPIL) 753.50 L,_J 753.50 -1.00 4.9 2 THIENEMANNIELLA 01.53 01.53 -1.00 0.1 C

  • 2 PSECTPCCLADIUS ( LPIL) 047.53 247.53 -1.00 1.6 2 NILOTANYFUS ( LPIL ) 10.76 10.76 -1.00 0.1 f%gj 3 CHIRONOMIDAE ( LPIL) 236.81 ..

036.C1 -1.C0 1.5 sq 3 0 OIPTCPA CR ACHYCEPA ( TOTAL) 01.53 01.53 -1.00 0.1

  ~~"

0 EMPIDIDAE 3 EMPICIDAE (LPIL) 10.76 10.76 -1.00 0.1 2 EMPTDIDAE (LPIL) 10.76 10.76 -1.00 0.1 0 ECTCPFCCTa (TOTAll 30.09 30.09 -1.00 0.0 DATE LT/22/79 PAGE N3 7 T600ACUA 9/08/77

NORTHERN STATES FC'WER COMPANY Table 2.2 -7 (cont) FR AIRIE ISLAh") NUCLEAR GENERATING PLA?1T MACROINVERTEERATE CENSITY (NL?"3ER PER SQUARE METER) HESTER-DE!OY t'ULTIPLATE SAMPLER WITHIN-s:TE REPORT ' AUCUST FEL LS TAXA STURGEON LAKE X S.E. A D:f 7 0 PLUMATELLIDAE 11 PLUMATELLA REPENS 30.29 32.29 -1.00 0.2 TOTAL 15306.75 15305.75 -1.00 100.0 ha DIVERSITY (H FRIME) 3.3' 3.34 -1.00 DIVEPSITY (J PRIME) 0.81 0.61 -1.00 f frJMCER CF TAXA 03 03 p 20TTCM TYPE 0 La A ASOVE CCt:FUTED USIN3 SAMPLE IDS 26361 26362 06363 26354 DATE 03/22/79 PAGI NO 8 T6 0 0 AC'J A Q/08/77 N N CN g 4 a/ @ o s (f u g . 4d utgn!"M n1*{if

                                                          \~ . 9 s$

0 0011770 03 31 17 40 2 19 6318265 000 181 LX , . . . (, 000 010 EB 0 0000000 01 10 00 00 0 09 5 0 2 3 0 4 FA 1 1 1 1 9311229 93 33 30 54 9 34 4347902 899 200 2 5122774 42 25 57 69 0 54 0348951 155 010 E - , . 6 3766009 90 03 37 67 7 11 1953802 733 863 S 44 4 42 27 41 2 22 0459 1 00 095 00 0 0 8 0 20 11 4 3 3 3 1 1 1 6 9833334 43 35 59 84 9 97 3163671 39 9 502 7 5155999 90 26 66 89 5 2 6 3 4 0 C.7 1 5 155 65e

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McRTHEntt STATES rc;.ta CcMPANr Tabic 2.2 -7 (cout) PRAIRIE ISLAND NUCLEAR GEt4ERATIt0 PLANT t1AC n/ERTEERATE CENSITY (NUMCER PER SOUARE f*ETER 7 HES CitCY MULTIFLATE SAMPLER WITHIti-SITE FEFCRT INTAKE AUGUST REL LS TAXA X-1 X-2 X-3 X S.E. AS% 3 4 5 2 POLv C EtiTRO PCOID A E 75.35 64.59 0.0 46.65 23.53 0.1 3 TPICMOPTEPA (LPIL) 75.35 462.86 53.82 197.34 130.90 0.5 0 D7FTERA i?Et'ATCCERA (TOTAL) 691C.65 17601.C9 54047.34 06193.00 14066.22 67.2 0 CHIRCNOMIDAE 2 CRICOT0FUS ( LPIL) 0.0 64.59 0.0 21.53 01.53 0.1 2 TANf TARSUS ( LPIL ) 462.86 5S1.27 118.41 337.51 133.S3 1.0 2 DICROTENOIPZS ( LPIL) 182.90 32.29 0.0 71.76 56.39 0.2 2 FCLYFE3ILUM (LPIL) 0363.14 1862.22 462.26 1564.41 569.81 4.0 2 AELACESMtI A ( LPIL ) 182.99 137.94 10.76 111.03 51.75 0.3 2 2 GlPTOT ENDIPES ( LPIL ) THI! NEM ANNIE LLA 3143.16 01.53 13401.53 32.09 49461.79 0.0 7(Q*g mg 20002.15 17.94 14045.54 9.69 56.4 0.0 y 2 TL.17US ( LFIL ) 0.0 452.10 0.0 150.70 150 0.4 2 PSLTOCOLADIUS ( LPIL) 036.01 109.17  ;[#2/""Q3 I 505.92 090.63 112.<4 0.7 H 3 CHIRC'.CMICAL ILoIL) 3 D IPT LR a. ER ACHYCERA ( TOTAL) 312.16 10.76 548.93 10.76 3E6 4. 3 7 0.0 (CD Qgj/ 1575.17

                                                                                                                         .18 1146.64 3.59 4.0 0.0 0     EMPIDIDAE 2     E'?IDIDAE (LPIL)                             10.76        10.76             0.0         gg[aw7             7.18       3.59    0.0 0 Er.0FROCTA ( TOTAL)                                0.0        32.29            43.06                          05.12      12.94    0.1 0     PLL?tATELLIDAE J '.       PLU'1ATELLA REPENS                          0.0        32.29            43.06          CD              05.12      12.94    0.1 TOTAL                                            13745.93      35377.25        67351.F1 b

_m 33991.66 15552.64 100.0 DIVERSITY (H PPIt1E l 3.09 2.84 1.40 TGQ.il 2.51 0.57 DIVERSITY (J FRIME) 0.77 0.65 0.36 b# 0.60 0.13 NUMSER OF TAXA C /> 31 00 SC 34 BOTTCM TrFE O N ABOVE CCMFUTED USItG SAMPLE ICS 3 N 26371 0',370 26373 06374

  &                      06301        Co392  06333  06?S4                                                     ,j M 06391        06372  06393  06394                                                  ?.:13 CATE          03/20/79                 i s0                                                                       PACE !!O              16 77 ^**

A T60CAQUA 9/08/77

NORTHERN STATES F0kER COMPANY Table 2.2-7 (cont) PRAIRIE ISLAND NUCLEAR CLNERATING PLANT MACROINVERTECRATE DENSITY (NUNCER PER SOUARE METER ) HESTER-DENDY MULTIPLATE SAMPLER WITHIN-SITE REPCRT DISCHARGE AUGUST LS TAXA REL Y-1 Y-2 X S.E. AB% 6 7 0 CNICARIA (TCTAL) 53.82 43.06 0 HILRC20A 43.44 5.3S 0.1 1 HtCRA (LPIL) 53.82 10.76 11 CCRDYLCPHOPA LACUSTFIS 32.29 21.53 0.1 0.0 32.29 0 NEMATCDA (TOTAL) 16.15 16.15 0.0 775.03 32.29 403.66 371.37 1.2 1 NEMATCDA (LPIL) 775.03 32.29 ' 0 ENOCPROCTA  ; o-403.66 371.37 1.2 21.53 0.0

                                                                                         ~

10.76 10.76 0 ENDCFROOTA 0.0 11  % URNATELLA GRACILIS 21.53 0.0 M5 0 OLIGCCHAETA (TCTAL) 10.76 10.76 0.0 9924.65 613.56 ' 5269.11 4655.54 15.6 0 NAIDIDAE - 1 MAIDIDAE ( LPIL) 9924.65 613.56 0 ARACNNIDA (TOTAL)

                                                                                   %,                     5269.11  4655.54 15.6 bJ                                                       0.0       193.75                                    96.88    96.83   0.3 0     FROSTIGMATA                                                                 '
  • hg 1 H t CR AC.',RINA (LPIL) 0 EFHEMERCPTEkA (TOTAL) 0.0 193.76 96.83 96.03 0.3 0.0 839.61 419.81 419.21 P O SIFHLONURIDAE 1.2 W 10 1ECNiCHI A ( LPIL)

N 0 E$ A E TID A E 0.0 10.76 MW- 5.38 5.38 0.0 10 DAETIS ( LPIL) 0.0 531.27 0 NEPTACENIIDAE w . 290.64 290.64 C.9

r. -

10 STENCNEMA (LPIL) 0.0 161.46 60.73 60.73 0.2 10 E PHEt!ERCPTER A ( LPIL) 0.0 86.11 43.06 43.06 0.1 0 TPICHOPTEPA (TOTAL) 2637.24 927S.79 ^ 5958.01 0 HYCPCPSYCHIDtE P 3320.77 17.7 2 HYDRDPSYCHE CRPIS 10.76 3132.40 , , 1571.53 1560.82 4.7 3 HfCROPSfCHE (LPIL) 0.0 107.64 - - 53.82 2 HYCRCPSYCHE ( LPIL ) 53.E2 0.2 2 3 CHEUMAT3 PSYCHE (LPIL) CHEUMATCP5t CHE ( LPIL) 32.29 32.29 0.0 979.55 1937.57 103.76 [ m) h 505.92 904.93 96.LS 473.63 952.64 96.C S 1.5 2.9 0.3 2 FOT AM f1 A ( LPIL ) 0.0 53.C' W> ^6.91 26.91 0.1 N 2 HYDRCFSiCHIDAE ( LPIL) 32.29 2195.91 1114.10 1001.El 3.3 0 POLYCONTFCPCDIDAE 2 CYm LLUS ( LPIL) 1097.93 32.29 I M

  @                                                                                                        E65.12   532.C3   1.7 2        NEURECLIPSIS ( LPIL)                1151.73      462.06                                    E07.32   344.46   2.4 3        NE'SECLIPSIS ( LPIL )                150.70        10.7o                                    60.73    69.97   0.2
  *g   3 iPICMCPTEFA (LPIL)                          125 17      172.23                                    150.70 O DIPTER A NEMATCCERA ( TOTAL )

21.53 0.4 34811.62 8233.95 21447.73 13363.83 63.6 0 CHIRONCMIDAE LJ1 2 TANfTARSUS (LPIL) 26.11 710.44 303.23 2 312.16 1.2 DICROTEPPJIF E S ( LPIL ) 53.S2 10.76 32.29 21.53 0.1 2 FOLYPEDILUM ( LPIL) 95.08 3527.56 1862.22 1765.34 5.5 DATE 03/22/79 PACE NO 21 1600ACUA 9/;8/77

NCRTHER?4 STATES PCWER CCMPANT Table 2.2-7 (cont) FRAIRIE ISLAND NUCLEAR GENERATING PLANT MACROItr.'ERTEORAIE CENSITY (f."JMSER PER SOUARE METER ) HESTER-DEf3Y MULT! PLATE SAMPLER

                                                                                     -p .

WITriIN-SITE RErCUT k'w / DISCIIARGE AUGUST 'T de. D) p - PEL LS TAXA Y-1 Y-2 hs ~ k. S.E. AEM 2 ASLASESM7IA (LPIL) 300.93 139.94 D 031.43 91.50 0.7 2 CCH NONEUPA (LP!L) 10.76 0.0 C 7/M 0 5.33 5.33 0.0 GLYFTOTEND rES ( LPIL) 30703.36 0443.49 fjd

  • 17533.40 2 THIENEtStNIELLA 1513).73 50.2 3.0 53.00 Co.91 2 STENOCHIRCNOMUS ( LFIL )

06.91 0.1 0.0 10.76 2 PCECIECCLADIUS ( LPIL ) 006.05 g *s 5.33 5.33 0.0 N 3 CHIPONOMIDAE (LPIL1 1091.71 484.39 600.C3 gTO. "N 4 255.02 947.05 101.17 344.46 1.1 0.8 N 3 DIPTERA CPACHYCERA (TOTAL) 0.0 21.53 WM~j 10.76 10.76 0.0 0 EMPIDIDAE g 3 EMPIDIDAE (LPIL) 0.0 10.76 p*-f w 2 EM?IDIDAE (uPILI 0.0 3 5.38 5.33 0.0 10.76 ' g" E.33 5.33 C.0 CD 0 ECTOFROOTA (TCTAL) 43.06 30.09 y- 37.67 5.3S c.1 0 PLLm TE L LID AE dC 11 PLUMATELLA REPENS 43.06 30.09 E73 37.67 5.38 0.1 TOTAL 43066.93 19133.E0 DIVERSITY (H FRIME) 1.39 3.40 g}g 35702.87 14564.05 100.0 DIV;RSIT f (J FRIME )  ?. 40 1.00 e 3"3 0.36 0.79 NUMSER CF TAXA 0.57 0.01 00 OS 3G BOTTOM 1YFE O}}