Text

Plant,Environ Monitoring Program,1986 Annual Rept,Water Chemical Analyses
	ML20079N372
Person / Time
Site:	Prairie Island
Issue date:	12/31/1986
From:	Kuhl G; NORTHERN STATES POWER CO.
To:	;
References
	RTR-NUREG-1437 AR, NUDOCS 9111110185
	Download: ML20079N372 (37)
	v • d • e

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PRAI_RIE ISLAl!D liUCLEAILGIllEBAIllIG PLAllT EINIRQ11MEHIAL_M01!ITORIltG_EEQQRAM 1986 A!!!!UAL_I1EPORT WATER CliflilCAL_AHbLYSES w

fJ' by St G. M Kuhl Environmental and Regulatory Activities Department llorthern States Power company I

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1 9111110185 061231 POR NUREQ 1437 C PDR

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WATER CHEMICAL ANALYggg JNTRODUCTION i

Mississippi River water sanples were analy:od during 1986 to characterize chemical parameters above and below the discharge of the Prairie Island Nuclear Generating Plant (PINGP).

Parameters analyzed weret phenolphthalein (p); and total (m) alkalinity; dissolved orthophosphate phosphorus; total dissolved phosphorus; filterabln and nonfilterable residue;

ammonia, nitrate and nitrite nitrogen; pH; conductivity; dissolved oxygen; turbidity; and water temperature.

Parameter significance and description were characterized by Schmidt (1976).

Data collected during 1986 represented the 17th year of Mississippi River water analysis.

Th6 1985 Environmental Monitoring and Ecological Studies Report summarized those years when the data had been treated statistically (1975-1985).

This summary concluded that water temperature was the only measured parameter that showed a long-term, continuous, plant-induced trend and at that time NSP proposed deleting the program after 1986.

The Minnesota Pollution Control Agency has approved the proposal to terminate the study; 1986 will be the final year of data collection, analysis, and reporting.

MATERIALS AND METHODS Monthly samples were collected at four stations (Figure 1).

Stations B-1 and X-1 were treated as upstream stations, and Stations Y-2 and C-4 were treated as downstream stations.

Top and bottom samples were collected at each station using a 2.2 liter Kammerer bottle, transferred to 200 ml BOD l

bottles, and fixed for laboratory analysis by the modified Winkler method of titration.

Additional parameters analyzed l

3 e

1 at the PINGP Environmental Lab were pH and turbidity.

Remaining analyses were conducted at the NSP Chestnut g

Service Center Pollution Lab.

W Data interpretation utilized a full factorial analysis of variance (ANOVA) to determine seasonal,

plant, and depth effects (Steele and Torrie 1960).

Missing values ware estimated according to Li (1964).

In certain cases, variation between two factors (interaction) may be significant, but individual effects cannot be differentiated (e.g.,

month x plant).

These interactions were also treated statistically.

I RESULTS I

Mississippi River water chemistry data and statistical analysis fcr 1986 are presented in Tables 1

and 2,

g respectively.

Results of the ANOVA conducted on 1996 data indicate the followings i

1)

All parameters exhibited highly significant difference for seasonal variation.

2)

M-alkalinity exhibited significant difference for plant effect.

3)

Dissolved orthophosphate phosphorus exibited significs.nt difference for plant effect.

4)

Total dissolved phosphorus exhibited highly significant difference for plant effect and significant difference for plant x depth interaction.

8

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f 5)

Filterable residuo exhibited significant difference for plant effect.

r 6) lionfilterable residuo exhibited highly significant f*

difference for depth effect.

7)

Ammonia nitrogen exhibited significant effect for depth and month x plant interaction.

I 8) liitrito nitrogen exhibited highly significant difference for plant effect.

9) liitrate nitrogen exhibited significant difference for f

month x plant interaction.

10) pH exhibited significant difference for plant effect and highly significant difference for month x

plant interaction.

a 11)

Conductivity exhibited significant difference for plant effect.

12)

Dissolved' oxygen exhibited highly significant difference for plant and month x plant interaction effect.

13)

Turbidity exhibited significant difference for plant effect.

14)

Water temperature exhibited highly significant f

difference for plant effect.

DISCUSfzIgl{

i.

The statistically significant diffarences identified in the t

1!)86 PIliGP data base are all well within the range of l

natural seasonal variation.

In the 1985 Environmental 5

Honitoring and Ecological Studies Annual Report eleven years of water chemistry data were summarized, outlining those pare,moters affected by PINGP and possible explanations.

As stated previously in this report, 1986 was the last year of the Prairie Island Water Quality Study, subsegaently this is the final report outlining the results of the seventeenth year of sample analysis.

LIIIRATURE__CITID Li, C.C.

1964.

Introduction to Experimental Statistics.

McGraw-Hill, New York.

pp. 227-233

Schmidt, S.F.

1976.

Water Chemistry.

Mit Environmental Monitoring and Ecological Studies Program, 1976 Annual Report for the Prairie Island Nuclear Generating Plant near Red Wing, Minnesota, Volume I.

Northern States Power Company, Minneapolis, Minnesota.

Steel, R.G.D.

and J.H.

Torrie.

1960.

Principles and Procedures of Statistics.

New York.

pp. 194-209.

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P=OcNen eV E c8HEER $No eveTEne 39ea #Act r a:TE V-ga OI550LVEO ORTHCPHOSPMATE TOTAL OI550LVED FILTEMARLE NONF3LTERASLE P-ALT AL lod! TV M-ALSALINITV PHOSPHORUS PHOSPHORUS RESIDUE WEEtDUE MG/L AE CACO 3 MG/L AS CACO 3 MG/L P MG/L P MG/L MG/L JAN e.e Ze2. Gee e.000 9.Ree 399.089 3.899 FEB 4.890 298.000 a.Cee e.See See.eet 3.000 MAR 3.eet ter.eet e.840 e.tge 339.999 38.990 APR e.e 375.999 e.eTe 0.890 350.000 2F.000 MAY 00 3F3 246 e.ese 0.849 339.999 St.eee JUNE 4 600

$93.939 e..Fe e.ees Ste.ees 53.999 JULY S.e Sea.eGe e.839 9.350 See.eee es.ees AUG 6.4 349.ees

e. tee 0.999 ZFe.ees ee.ees 269.ees FF.eSe SF. P e.e 1%3.908

e. lee e.tes OCr

..e i,3.e.e 0.089 e.ese 3 0.e.9 37.999 1

NOV e.e 234.ese e.ese e.959 See.999

53. Gee DEC 9.e 2es.899 0.159 e.959 3F0.999 F.see MEAN i.ees ase.48F e.g.,

323.333 33.58, I

5.

D.

2.e45 te.e&3 e.s3e 9.e33 39.2te 29.932 MEDIAN e.e 193.089 e.see e.e99 339.e..

St.ece LOWESF e.e 153.88e e 950 9.e54 249.eet 3 000 MICHEST 4.899 254.999 c.tet e.35e zee.ees es.ees Ot550LVED AMMONIA NITRITE NITRATE NITROCEN M87ROGEN N t T R OCE N COWOUCF8VITY O SVGE N T URSI t.8 T V TEMPEmATUwE MG/L M MC/L M MG/L M PM UMNOS/CM MG/L JTU DECREES C JAN e.54e e.eZe t.See

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-4 000 MAY 9.240 e.933 8.48e 9.3e8 583 000 e.2ee 9.see 37.ees JUNE e.lFe 0.949 3.899 e.489 509.999 F.See 2.see 2F.see JULY 6.eTe e.945

2. Fee 8.2ee 543. Gee F.30e 25.Oet gs.ese AUG e.tes e.e13 0.739 8.3es 493.990 F.&se 25.409 24.999 GTP S.359 9 923 8.499 9.ese 3es.eSe e-See St.eet 14.ee0 JCT e.lse 0.012 8.e80 F.See SeF.See IC. tee 85.e49 39.eet NOV 9.See e.e3F

3. Fee e.389 ees.eet 13.499 4.594 e.see DEC S.449 9.e85 3 998 F.See 592.e99 33.680 5.See e.ees MEAN e.2e7 e.ete 3.F94 e.000 584.447 9.e25 33.45s 22.545 5.

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4 Table 2 Proc =An av ENGsweEn:No Sv3TEMS 2

39e4 Pact FULL FACTORIAL AseALYS'S OF VARIANCE f I MISEING YALUES HAVE SEEN EST; MATES 3 P-ALEALIMITY MG/L AS CACO 3 PLANT EFFECT f

ABOVE SELOt3 SfATIONS X-5 AND S-3 STATIOceS Y-2 AMS C-4 DEPTM EFFECT DEPTH EFFECT SOTTOM TOP B077c89 TOP JAM e.e M-3 e.9 W-3 e.G Y-2 9.e V-2 0.0 S-3 e.e S-3 e.e C-4 e.8 C-4 FES 5 999 X-t 4.see X-8 4 904 Y-2 4.eet Y-2 S.ete S-t 3.See S-8 3.000 C-4 S.eet C-4 MAS 5.000 X-t 4.999 E 3.000 Y-2 4.see V-2 4.889 S-8 4.see S-8 APR 9.0 N-t G.e R-3

~

5.ees C-4 5.000 C-4 9.e Y-2 9.9 V-2

, 9. 0 S-3 e.e B-3 e.e C-4 e.e C-4 MAY 8.4 M-8 e.9 X-3 9.e V-2 9.9 Y-2 e.e B-3 0.0 3-8 e.e C-4 99 C-4

.I JUN 2.000 X-3 4.00e E-3 4.998 Y-2 4 009 Y-2 3.000 S*f 3.988 S-S 3.999 C-4 2.999 C-4 JUL e.e X-3 e.0 N-1 0.9 Y-2 9.9 V-2 8.8 S-2 S.9 S-3 e.0 C-4 c.e C-4 j '

AUG 9.9 X-3 e.e M-1 00 V-2 9.s Y=2 00 S-l' O.e S-R e.e C-4 e.4 C-4 SEP e.G N-3 e.0 X-3 9.e V-2 0.0 Y-2

~

E-3 9.e S-E e.e C-4 e.9 C-4 8.c OCT e.s u-3 e.e x-3 9.e V-2 1.999 Y-2 N

S. Gee S-1 4.s S-3 3.e99 C-4 ee C-4

'd NOV G.e X-2 4.s M-3 0.9 Y-2 e.e Y-2 9.9 S-3 3.0 S-3 e.e C-4 e.e C-4 DEC e.9 M-t 99 X-3 99 Y-2 e.e Y-2 j

e.998 S-8 9.9 R-1 9.9 C-4 0.9 C-4 PLANT YOTAL 47.993 Es.see AVERAGE G.983

$.e42 SOTTOM T Oer 1

DEPTH TSTAL 55.993 47.0e0 AVERACE 3.944 9.979 t

f AteOVA t

SOURCE O F SUN OF SOUARES f*E AM SOUAet F-STAT MO*FM 38.

274.este 24.9788 F3.4149ee PLANT 3.

e.Seet e.eest e.2128 MONTH N PLAed?

13.

3.2GF9 e.8373 9.3348 OEPTH 3.

e.ee95 8.4995 e.2944 fload T H M OFPTH 31.

G.2F45 0.92$4 9.8789 PLANT M DEPTH 3.

G.9995 0.e995 e.2844 ERROM 5e.

29.2e84 e.349F TOTAL 94.

294.8340 m SIGNIFICANT e 95 2t COteFIDEseCE LEVEL 9 em HICHLY SIGa83FICANT $ 99~3t C09eFIDEseCE LEVEL 3 4

"able 2 P=OcnAM av ENC NEan:Wo Sv3TEMS 39 6 eAct se F JLL FACTC# AL ANALv5:S OF VAR:ANCE MSS No vALuts HAvE SEEN EST MATEo M-ALWAL NTv Mc/L AS CACOS PLANT EFFECT AsovE sELOu ETAT ONS x-a AND S-STAT ON1 v-2 ANO C-4 OEPTH EFFECT DEPTH EFFECT ROTTOM TOP SOYTOM TOP SAN ser.eee z-zon.ees x-ser.eee v-a rez see v-r 393. ee e-a 39s.ees a-a 39r..

c-4 397.ees c-*

FEB 2ee..Se x-a 293.ees R-2ee.tes v-2 399.eee v-2 392.eee S-393.see S-2ee.ees C-4 397.ees C-4 MA=

376.ees x-a ars.ee. x-a ser...e y-r ses.eet v-=

ses.ese a-ses.een e-392.ees c-+

393....

c-.

Ann are.see x-a ers.ees x-a ars.ees v-z ers.ees v-r aza.ees a-asr.ees a-a sar.ees c-$

ses.ees c-.

mAv arr.ees x-a ars.ees x-a ara.ees v-r ars.eee v-r see.ees a-:

ses.see a-349.eee c-.

sis.eee c-.

sun 393.ees x-a 39e.see x-:

tes.eee y-z se9.ees v-e sas.ees a-a ase.ees a-369.ees c-*

ase.ees c-*

sul 396.ees x-a 9..see x-396... v-z 39s.eee v-r se..see a-a see.ees e-ses.eee c-.

39.ees c-+

Aus ase.ees x-ara.ese x-a sa,.cos v-ass.ees v-z see.ees a-a ase.ees a-:

see.ees c-+

34e.ese c-.

sEP ase.see x-asa.ees x-a ass.een v-a ase.ee, y-z ass.eee a-asz.ees a-a ass.eee c-4 ise.ees e-.

OCT 39e.ee-x-a 393.eee x-393....

v-r 3,s.ese v-:

ars.o.o a-ars.eee a-ses.ees c-.

se+.see c-.

os Nov rua.eee x-a 2:9.eee x-a 2:=.ees v-m

.ees v-m ras.eee a-:

zes.ees a-ras.see c-*

res.ees c-.

OEc 2:e.ees x-a zie.ees x-a ree.eee y-a zie.see y-r 3,s.ee, a-a 9s.een e-res.eee c-*

res.eee c-*

PLANT TOTAL ease.99, ese2.See AVERACE arf.3s2 ass.eet SOTTOM TOP DEPTH TOTAL er44.98, er2C.ese AVERACE

52.6e2 en.rez ANOVA sot.8R CE O F SUM OF SOUARES MEAN SOUARE F-STAT MONTH 34rs9.Ge33 3:se.9:47 zu.es 4ee PLANT 774.86e9 rre.See9 s.3623e MONTH X PLANT 2e34.9924 nG4.9993 a.2rre DEPTH a.

as.rree is.rree

e. nee 9 McAIM M DEPTH 34, 34.420e 3.3299 9.e233 PLANT M DEPTM 3.et2r 3.e42r e.e2:0 En=On so.

seer.rras me.eres TOTAL 94 9&e29.ne:9 e $sCN F CANT 9s X CONF OENCE LEVEL 9 em N CHLv S CN F CANT 99 X CONF OENCE LEVEL :

~

)

4 Tabic 2 PnOCaAM SV EwotNEERawa SYSTEnB 39es Pact In FULL FACTORIAL ANAiVSIS OF VARIANCE t t MISSING VALUES MAVE SEEN ESTIMATIO 8 ORTH' PHOSPMATE PHO8tPHO8tUS 99G/L P DISSOLVED O

PLANT EFFECT ASOVE SELOed SIATIONS M-t AND S-1 STAftONS V-2 ANO C-4 j'

.SOTTOM TOP SO T T O*g TOP DE*TH EFFECT DEPTH EFFECT TN e.339 X-3 e.898 X-3 4.900 V-2 e.999 Y-2 j..

FEB.

e.See M-t e.e99 E-3 0.e98 T-2 9 999 V-2 e.eet S-8 0.e79 S-8 9.8F9 C-4 9.eFe C-4 i

e.ese 8-8 e.eee S-t e.000 C-4 e.e99 C-4 j

MAR e.13e N-8 9.889 R-1 9.849 V-2 9.85e V-2 5

8 12e S-t e.83e S-R

e. tee C-4 9.548 C-4 APR e.see M-2 9.sae K-8 8.988 Y-2 O.tet V-2 4

e.098 S-3 e.eSt S-8 8.499 C-4 S.870 C-4 MAf 0.e49 M-t e.See x-3 e.ess *- 2 9.859 Y-2 e.ese S-3 e.e30 S-3 9.see C 4 e.ese C-4 JUN e.eet N e.478 M-8 9.979 V.'

e.eFe V-2 e.ese S-t e.ese B-S e.eSe C-4 e.ese C-4 a

JUL 4 339 X-8 S.338 R-3 e.339 V-2 e.349 V-2 9.128 S-3 9.tte S-t e.tse C-4 e.13e C-4 AUG e.s9e W-3

8. tee X-1

e. tee V-2 e.349 V-2 e.898 S-3 9.999 S-t 4 999 C-4 e.ete C-4 SEP e.s9e M-9 G. eve M-1 S. tee V-2 e.tse V-2 8.e9e S-8 e.e90 S-4 e.999 C-4 4.899 C-4 OCT 9 498 N-t e.ste N-t e.ees V-2 e.999 Y-2 8.0F2 S-t e.87e S-t e.eet C-4 e.Ste C-4 y

NOu

..es.

,-t 5.

-t 5.

V-2

. 95e V-2 0.049 S-8 0.e64 6-3 6 950 C-4 0.959 C-4 DEC G.eet N-t 8.840 k-t e.959 Y-2 e.eSe V-2 9.e39 S-1 e.See S-8 0.e59 C-4 0.958 C-4 PLANT TOTAL 3.754 3 999 AVERACE 4 878 9.983 SCYTOM TOP DEPTM TOTAL 3.e39 P.930 AVERAGE e.ees

e. Set i

ANOVA 4

SOURCE th F SUN OF SOUALES PTE AM SOUARE F-STAT MONvu st.

o.orst e.ees*

44.ee3 Fee PLANT 3.

e.0004 e.este 5.tsete MONTH X plate?

St.

9. tete e.ste2 1.5899 4

DEPTH 3.

e.eest e.eett e.eest MONTM N D E P T*A

$1.

8.0003 e.eese e.2ere PLANY N DEPTH 8.

9.Seet e.eest 8 55F3 Eamon St

e. seat e.eest TOTAL 94 e.8049 e

e SICMIF8 CANT 4 95 3t COMFIDENCE LEVEL 8 em HECHLV StGN3F1 CANT t 99 at CONFIDEMCE LEVEL 8 o

j

Table 2 PRoCRAM sv enc NEER No systems reos Pact FULL FACTOR AL ANALv5 B OF WAR ANet zM Se:NG VAL JE S HAVE SEEM EET MATED TOTAL 0 ESOLVED PHOEPHORuS MG/s. P PLANT EFFECT AsovE sEtow STAT O*d5 x=

AND S-STAT:CNS v-z AND C-.

DEPTH EFFECT DEPTM EFFECT SOTTOM TCP SOFTOM TOP SAN e.

e x-a

..see x-

e... v-z e.nes v-z e...

3-3

e. eve e-o e.eee c-.

e.e,e c-.

FER e.a.S x-9.990 x-a G.

09 v-z 9.ees v-z

e. eve a-a e.ees a-e.e,

c-.

e. nee c-.

nAR

e..

x-a e.:.. x-e.ase v-z e.ase v-z e.are n-a e.a e e-

e. 4e c-.

e.34.

c-.

AP=

e.ees x-a e.e e x-a e.eas v-z

e. eve v-2

e. ore a-a

e. ore a-a e.see c-*

e.ees c-.

MAv e.e.e x-a e.eae x-a e.

v-a

e. ore y-a e.ese a-a e.

.. s-a e.eae c-.

e.ese c-.

. sus

e. ore x-e...e x-

..... v-z

e. ore y-z e.eas a-a e.ese a-a e.e o c-.

e.sae c-*

suL e.33e x-a

e. Re x-a e.ase v-r o.ase v-a e.33e a-a e.33e e-:

e.ase c-.

e.a.,

c-.

Auo e.een x-3

e. eve x-e.=,e v-z

e. eve v-z e.ees a-e.ees a-a c-.

..... c-.

stP

e. nee x-e.eee x-

e. nee v-z

e. nee v-a

e. eve e-e.e e a-

e. eve c-.

e. nee c-+

Ocf e.eee x-a e.see x-a e.eee v-z

e. eve v-z

e. ore a-a

e. ore e-e.

.e c-.

e.

e c-.

NOv e.es x-e.ese x-a e.ese v-z

...se v-r c3 e.e. s-i e.e** s-a

....e c-.

..... c-.

cec e.ese x-e.ese x-a e.ese v-:

e.ese v-z e.ese a-a e.ese e-o e.eae c-4 e.ese c-.

PLANT TOTAL

..e26

. 33.

AVERACE e.es.

e.e9e BO. TOM TOP OEPTM TOTAL

. 34.

. 346 AVERACE e.eeF e.esT ANOVA SOURCE D F SUM OF SOUARES MEAN EcuaRE F-STAT MO%TH S.tese 4.eere ses.essees PLANT

..eees 4.

ees so.

4,3*e MONTH x PLANY an.

..seeT

e. sten

e. ores OEP 94 e.esee e.99 9 e.ees6 MONTH x DEPTM e.eens e.eeen s.2 47 PLANT x OEPTH s.

e.Seet e.eee9 5.9677e ERROR sT.

e.ee66 e.eee TOTAL 93.

...,3e e S CN F CANT f 9s N CONF OENCE LEVEL em HCHLv S GN F CANT $ 99 X CONF DENCE LEVEL C'

N N

enOCaAn sY ENCtNEE= No sVSTEMs Table 2 1,s., ACE IS FULL F A'3f OctI AL ANALYSIS OF VARIANCE e1 Mass NC VAtuts HAVE mEEN ESTIMATED 1 FILTERABLE RESIOUE MC/L PLANT EFFECT AeovE attON STATIONS M-t ANO S-3 STATIONS Y-2 ANO C-4 OEFTH EFFECT DEPTM EFFECT

.SOYTOM TOP SOYYOM TOP JAN 380.000 k-t 38e.00s M-t 380.000 V-2 See.est V-2 290.000 as-t 290.e84 S-3 tee.ees C-4 299.e99 C-4 FES 330.999 N-1 Ste.See M-8 38s.000 V-2 Ste.ees V-2 299.900 3-1 294.e99 s-3 See.see C-4 Ste.See C-4 MAR 300.48e k-l' 300.090 M-8 330.000 V-2 338.000 Y-2 330.e00 3-1 330.08e S-3 348 998 C-4 33e.999 C-4 APW 350.000 X-t 330.see M-3 350.498 V-2 34e.999 Y-2 269.999 S-1 2Fe.ees a-t 340.000 C-4 320.000 C-4 MAY Ste.eee X-t Ste.ees X-8 319.000 V-2 Ste. tee V-2 See.ees t-1 180.e00 e-1 See.eet C-4 3es.See C-4 JUN Ste.see X-2 ste.ese x-3 330.e09 V-2 Ste.eet Y-2 270.0ee E-1 274.64e S-t 2Fe.ees C-4 25e.e96 C-4 JUL 338.e09 M-4 340 000 M-1 348.900 V-2 344.000 Y-2 See.ese S-t Ste.ses S-1 300.498 C-4 33e.see C-4 AUC 270 00e M-t 279.900 X-1 270.009 V-2 2Fe.eSe V-2 269.eet B-1 258.989 R-t 24e.999 C-4 259.989 C-4 SEP 240.988 M-8 269 898 X-I 240.994 Y-2 24e.999 V-2 24e.000 S-8 249.800 3-1 260 00e C-4 2Fe.eee C-4 OCT 379.es3 x-3 340.ece X-3 See.eet Y-2 340.98e V-2 ea 320.980 a-t 320.ees a-t 340.000 C-4 34e.9e9 C-4

>d NOV 3es.See X-1 380.00e M-t 39e.e00 V-2 See.eet Y-2 340.000 B-3 359.899 B-3 3F9 999 C-4 366.000 C-4 DEC 3Fe.ees N-t

'3Fe.ees x-1 3Fe.see V-2 370.e99 9-2 332.44e a-3 33e.e89 S-8 359.t et C-4 34e.999 C-4 PLANT TOTAL 345F2.440 1520s.eet AVEMAGE 393.593 334.447 SOTTOM TOP DEPTH TOTAL 14902.440 84079.0e0 AVERACE 33e.44e 3s9.792 ANOVA SOO4CE D F SUPT OF SOUARES MEAN SOUARE F-STAF MONTH 81.

382384.9897 3e288.4444 to.4Feene PLANT 3.

43J2.9523 4142.8521 4.4293e MONTH M PLANT tt.

78e5.3649 Fee.5 Fee 3 3452 DEPTH 1.

39.9006 30.9804 e.etFF noNTN X DEPTN St.

e23.ttts re.4445 e.12 5 PLANT X DEPTH 3.

39.9896 10.9e04 9.etFF Em404 5e.

3593F.F923 439.43F3 TOTAL 94 tote 03.3789 e SIGNIFICANT E 95 F. CONFIDENCE LEVEL I me HIGHLV SIGNIFICANT t 99 X CONFIDENCE LEVEL 1 4

e G

o 1984 PAGE I4 PROGRA*t ST ENGINEERING SYSTEMS FULL F ACTOft t AL ANALYs t s CF V4RIANCE I E MISSSNG VALUES HAVE SEEN ESTIMATED D NOe(

1 L T E R A BL E RESIOUE MG/L e

PLANT EFFECT SE L O68 ABOVE STATIONS M-t ANO S-3 STATicNS Y-2 ANO

("

4 DEPTH EFFECT DEPTH EFFECT SOYTOM TOP SOTTCM TCP J.N 3.eet n4 2.0 0 x-3 3

8..

v-2 3.000 v-2 3.000 E-3 3.000 3-1 2 008 C-4 2.see C-4 FES 2.ees N-t 3.e99 x-3 3.48e V-2 2.000 Y-2 1.898 S-3 2.000 S-t 1.tes C-4 3.See C-4 MAR 4.See M-1 5.e00 m-3 St.ees Y-2 e.eet Y-2 7.ete B-3 7.ees S-3 St.ees C-4 9.ete C-4 APR 32.886 N-1 23.see M-1 27 000 Y-2 25.see Y-2 Se.see 8-1 33.00s 8-3 33.see C-4 28.000 C-4 nAY St.see M-t 33.000 E-t St.eet V-2 25.est Y*

25.000 S-1 23.899 S-3 SF.tes C-4 33.089 C_

JUN 73.800 M-t 29.See N-8 53 999 V-2 46.See V-2 69.089 S-1 43.e00 E-8 53 099 C-4 47.990 C-4 J JL 43.000 N-t 51.999 M-1 46 000 V-2 49.000 Y-2 79.996 8-1 53.e99 S-t F9.see C-4 St.ees C-4 AUG 79.000 N-t 43.000 N-t 80 000 V-2 67.see V-2 49.08e S-t 43.e00 3-1 59.See C-4 56 400 C-4 SEP 7F.ees M-1 44.000 M-1 FF.ees V-2

.se Y-2 63.eet B-1 48.000 S-1 44.98e C-4 44.See C-4 OCT 26.000 X-3 19.e98 m-t 37.988 V-2 29.0e0 Y-2 25.ees S-E 23.000 3-1 29.eet C-4 24.900 C-4 NOV e.eSe X-3 S.eee X-t 33 00e Y-2 49.999 V-2 p,

11 999 S-3 St.Get S-8 12 480 C-4 18.e98 C-4 pa DEC d.ees X-1 3.se4 E-t 7 499 Y-2 3.99e T-2 9.ete B-1 15.99e 3-1 4.eet C-4 F.eGe C-4 15e2.See PLANT TOTAL 1347.43e 33.292 AVERACE 2e.492 TOP SOTTOM DEPTH TOTAL 1544.458 330s.eet "JF.3es AVERACE 32.594 ANOVA SOURCE O F SUM OF SOUA st E S MEAme SOUARE F-STAT MONTH 38.

55992.5444 Sees.4353 es.3885me PLANS 8.

30s.1399 898.1309 3.3tF2 MONTH X PLANT St.

593.4440 53.06e4 e.9356 DEPTH t.

782.e5F9 702.0579 32.3F9tme MONTH E DEPTH 13.

e26.2181 75.8001 3.3244 PLANT N DEPTH 3.

128.4250 320.425e 2 1269 ERROR 54.

3289.3563 54.Ft3e TOTAL 94 Seae2.atte e SICHIFICANT t 95 X CONFIDEteC2 LEVEL 3

== HtCHLY SIGNIFICANT I 99 X CONrIOENCE LEVEL 3

w e

e e

N

[

];

1 J

1-PPOcnAM sv enc NEE =tNG systems Tabic 2 3,e4 P4ct as

{.

.4 1 M8sstNG VALUES HAVE SEEN ESTIMATES B FULL FACTOntAL ANALYSIS OF VARIANCE i

l AnrtON3A N3TROCEN MG/L M PLAN 47 EFFECT

-ABOVE SELOW STATIONS R-8 AND S-B STAftONS V-2 ANS C-4 OEPTH EFFECT OEPTH EFFECT SOTTOM TOP ROTTOM TOP 1

JAN e.See N-S e.544 N-8 3.54e Y-2 e.529 V-2 I

9 5F8 S-t 0.529 S-t 9.548 C-4 e.559 C-4

'FEB e.4Fe M-5 e.42e N-l

. 490 V-2 9.F5e Y-2 e.488 S-1 e.49e S-4 4.F2e C-4 s.73e C-4

- man

.e.See x-a e.49e x-a-e.See V-2 e.52e V-2

+

e.520 3-1 9.4Fe 8-0 e.See C-4 e.549 C-4 APR e.e4e X-1 9.e39 N-t 0.04e V-2 0.e43 Y-2 e.850 S-8 8.lse S-t e.eSe C-4 e.834 C-4 i

MAY e.340 X-1 0.238.N-R 4.240 Y-2 e.229 V-2 i

e.24. B-e.22. B-e.23. C-4 e.R49 C-4 JUN e.129 M-1

. 19. X-3 9.378 Y-2 e.16. V-2 9.330 S-8 e.829 S-8 0.829 C-4 e.lte C-4 JUL e.848 X-3 9.

4e N-8

. 079 V-2 4.9F4 V-2 e.94e S-R e.See S-8 e.948 C-4 e.94e C-4 AUG 8.939 M-1 0.949 X-8 8.919 V-2 e.958 Y-2 4

0.e54 S-3 e.ese B-3

.e.84e C-4 4.448 C-4 EEP e.359 X-3

..s5.

=-a

e. 50 v-2 F. v-2 e.See S-3 e.34e S-3 8.83e C-4 e.330 C-4 OCT e.330 X-1 S.828 M-t e.338 Y-2

e. tee V-2 1

.e.See S-t e.34e S-t e.14e C-4

e. tee C-4 N

NeV e.4e9 X-3 9.42e Mal e.3ee V-2 e.34e V-2 A

e.484.5-3 9 3ee E-8 9.439 C-4 e.4ee C-4

~

OEC e.43e N-t e.40s X-t e.44e V-2 e.430 Y-2

("

.e.445 S-1

. 488 S-8 e 449 C-4 e.45e C-4 f

PLANT TOTAL

$3.455 83.74e AVE W A GE 9.280 8.2e7

+

SOTTOn TOP DEPTM TOTAL-33 495 33 32e a

AVERAGE e.2 9 0.2FF j

ANOVA i

SOueCE O F sum OF SOuA=ES maw EOuant P-STAT -

(

MONTH 33.

4 3399 e.3945 ett.542 Fee Pt ANT.

i.

e.eese

..eese s.4F33 l

MONTH X PLANT 13.

e.el36 0.0e32 2.3333e DEPTH 1.

e.Se34 e.0034 5.9538m

[-

MONTH X OEPTH.

38.

e.9944 e.9004 8.9493 j.

PLANT M DEPTH 3.

e.Se22 0.0022 3.7244 ERROR 5e.

e.e534 e.eece TOTAt

,4.

4.

002 l

l e SIGNIFICANT E 95 3t CONFIDENCE LEVEL 9 es HgGHLV stCNIF$ CANT 4 99 3t CONFIDENCE LEVEL D I

PROCRAM SV ENGSNEERING SYSTEMg 89e6 FACE to FULL FACTORIAL ANALYSIS OF VARIANCE E & M I E S $ NG V All.tE S 64 AVE BEEN EsitMATED 5 NITRSTE NITROCEN MG/L N PLANT EFFECT

ASOVE BELON STATIONS k-3 AND B-3 STATIONS Y-2 AND C-4 DEPTH EFFECT DEPTH EFFECT ROTTOM TOP SOFTOM TOP JAN e.085 W-3 e.ste M-1 e.ete Y-2 e.92e Y-2 0.089 S-3 e.ste S-8 e.819 C-4 4.089 C-4 FEB e.880 k-1 e.sts X-4 e.824 Y-2 9.e23 V-2 9.433 8-3 4.483 3-8 c.816 C-4 e.084 C-4 MAR

e. ele M-3

e. ele E-1 e.e3e V-2 0 024 Y-2 9.825 8-8 e.924 S-8 e.eZe C-4 e.02e C-4 APR 4.e29 M-1 0.829 N-1 e.832 Y-2 e.e3F Y-2 e.822 E-t e*e23 8-8 e.eSe C-4 e.026 C-4 MAf e.e35 K-8 e.e25 M-t e.e33 V-2 e.e32 Y-2 e.ets B-3 e.ets a-t e.e32 C-4 e.932 C-4 JUN 4.944 X-3 0.e44 M-8 e.940 V-2 e.eSt V-2 8.e34 B-1 9.933 3-3 c.43F C-4 e.832 C-4 JUL O.ee3 N-1 0.e44 N-t e.e45 V-2 e.038 Y-2 8.e41 B-l 4.848 S-3 4.943 C-4 S.942 C-4 AUG S.084 M-3 e.934 M-5 0.083 Y-2 4.983 V-2 4 915 R-t 0 084 E-t e.eks C-4 9. e 1 ~. C-4 SEP e.423 N-3 c.423 M-1 S.e28 V-2 e.e25 V-2 e.e25 S'a e.eZe B-1 e 28 C-4 e.028 C-4 OCT e.eks X-t e.ste N-3 A2 Y-2 e.933 Y-2

- C-4 6.ett C-4 e.8

'. S-1 e.,r t e 3-1 s

PJ NOV 9.037 M-1 S. ate M-t 9.e17 Y-2 9.etF V-2 9.ete 8-4 0.938 E-3 e.ete C-4 e.ela C-4 DEC e.e82 X-t 41.e82 M-t e.885 Y-2 e.et* W-2 e.ete S-8 S.ets s-1 4.014 C-4 e.ets 4

PLANT YOTAL 3.425 3.3FF AVERACE e.ett 0.025 BOTTOM TOP OEPTH TOTAL 3.88e 3.044 AVERACE e.023 9.e23 ANOVA i

SOURCE D F SUM OF sOUARES PtE AN SOUARE F-STFT MONTH 18.

e. esse e.9988 44.858ese PLANT 3.

e 0002 0.00e2 13.FleFee MONTH M PLANT 83.

e.sec3 0 0988 3.7334 OEPTH 1.

e.teet 9.000e e.Ftte MONTH M DEPTH St.

e.0000 e.9968

9. test PLANT M DEPTH 3.

e. Gees e.eSee e.9933 ERROR 5e.

4.0830 e.Sese TOTAL 94

e. ele 2 e S8CNIF$ CANT t 95 38 CONFIDENCE LEVEL 8 se HIGHLY SIGattFICANT 99 X CONFIDENCE LEVEL 3 6

m smuun m

m m

M M

E E

E PnOcnAM sy ENa:NEEn:No aveTEMs Table 2 39e Pact er FULL FACTORIAL ANALYSIB OF WAR $ANCE E 3 MIESING VALUES HAVE BEEN ESTIMATED D NITRATE NITROCEN MG/L N PLANT EFFECT AsOvr atto.

STATIONS x-1 ANO s-1 STATIONS v-r AMO C-+

OEPTH EFFECT OEPTH EFFECT SOTTOM TOP 507 TOM TOP

.sAw a.ree x-a n.4ee x-a

n. sos v-a s.ees v-r s..ee a-a n.6se a-3.3ee c-+

s.see c-+

FEa 3.ses x-t s.See x-a

3. zee v-=

x. zee y-z

. nee a-a

n. nee e-

a. nee c-*

. zee c-+

cA=

n.see x-a s.see x-a z.een v-a z.eee a-z.ees a-a 2.eee v-z z.ses c-+

z. zee c-*

AP=

z.9ee x-a r.ees x-a 3.ees v-2

2. nee e-

z. nee a-a 3.eee y-z 2.see c-+

z.4ee c-+

nAv s.see x-a n.see x-a s.see v-z

z. nee v-z e.ree a-a e.aes e-a s.ees c-+

s.see c-*

sun

.see x-a s.see x-s i.een v-z s.ree a-a n.see a-a 3.ses v-2 t.see c-+

t.3ee c-+

Jut z.4.e x-a z.eee x-z.ree y-a z.aeo a-z.see a-t z.see v-r z.*ee c-*

z.4es c-*

Aus e.ree x-s e.rse x-a e.73e v-r e.rre a-e.ree a-a e.r3e v-z i

e.r3e c-+

e.ree c-4 sEP a.see x-a s.see x-a s.6ee v-2 s.see a-a s.see e-a a.see v-r s.see c-+

ocT a.see x-n.see x-a

.4ee c-e s.een v-a n.s ee -v-m s.aes e-a n.see a-a s.aos c-*

Nov s.ees x-a 3.ree x-a

. ee c-+

N s.ree v-2

.see a-s.see a-s a.ree v-m 3.see c-+

OEc z.eee x-s z.sas x-s s.see c-*

s.9ee v-z e.res a-a n.ree a-a

.*ee v-z s.ese c-+

.9ee c-+

PLANT TOTAL 79.ezs A VE R ACE 3.443 es. rte 3.73s 807 TOM DEPTH TOTAL es.93s TOP St. net AVERAGE'

.rer 3.493 ANOVA EOURCE O F GUN OF SOUARES MEAN souAME F-STAT MCNTH St.

as.744s z.Ber*

so.8243==

PLANT t.

e.

2se e.8rse 3.e33e MONTH x PLANT St.

e.94F4 e.eese z.4339e OEPTH I.

e.Ses9 e.ess9 e.Iee2 nONTu x OEPfu e.netz e.eer,

e. sera PLANT x OEPTH 3.

e.e82s e.932s 0.3e3:

ERMON se.

z.3999 e.eetz TOTAL 9e.

29.3ssi e SicNIFICANT f 9s JC Con #Ff0ENCE LEVEL D

= H CHLY SIGutF8 CANT t 99 x CONF 10ENCR LEVEL 3

Table 2 sees cAct so P=Oc= Art av EwCs weens e.c svstEns FULL FACTORIAL Analysts OF VARRANcE t 1 MtsstNG VALUES HAVE SEEN ESTIMATED 9 PH PLAMT EFFECv sELOLE eAs3VE sTAfsOws v-ANO c-*

sTAfsONs x-a AwO s-a DEPTM EFFECv DEPTH EFFECT TOP BOT T OM sOTTOM TOP 7.ree v-z r.ree v-sAw 7.*ee x-s r.ree x-a 7.ree c-.

7.een c-.

r.ree a-a r.ree s-a 7.ree v-z 7.See v-FEs redee x-8 7.ree M-t r.eae c-.

7.eee c-*

r.ees a-7.6ee a-a resse v-f r.eee v-2 MAR r see x-8

7. Gee N-l r.,ee c-*

7.vos c-+

7.,se a-a r.,ee a-s APn e.ees x-a e.ees x-a

e. zee v-

e. zee v-z e.see s.:

7.,ee a-a

e. nee c-*

e.see y-z e.see v-MAv e.ee x-s e.ees x-e.ees c-*

e. nee c-+

e.see a-a

e. oe a-a

.sua e.ees x-a e.eee x-a e..ee v-:

e.3ee v-z

e. zee a-a

e. zee a-a e.zes c-4 e.See c-+

.ruL E. nee x-s e.een n-a

e. zee v-z e zee v-z

e. zee c-4

e. zee c-.

e.eee e-e.see s-Auc

e. zee x-s e.See x-s e.3ee v-r e.3ee v-z

e. zee a-a

e. zee c-*

e. zee c-.

e.ees v-2 7.*ee v-2 sEP r.,ee x-a 7.see x-a e.eee c-.

r.,ee c-*

7.see a-7.see e-a Oct e.ees x-

e. nee x-s 7.ees v-z e.eee v-z 7.ees c-*

r.ree c-*

e. zee a-a e.ses a-a e.3ee v-z e.see v-r wov e.see x-s e.See x-a e.3ee c-.

e.3ee c~.

da e.ses a-a e.See a-C' OEc

r. ee x-a r..

e x-a r.5ee y-a r...e v-r.4ee c-+

r.see c-+

r..e3 s-a r...e a-a Be2.See PLANT TOTAL 395.7s3 7 985 AVERACE r.952 TOP sofTOM Soz.3ee OEPTM TOTAL Sez.re3 7.965 AVERACE r.973 AMOVA SOURCE D F stMt OF GCUAREs MEAM SOUARE F-STAT MONTH

$3.

&*8534 e.5594 932.4el3e*

PLANT 3.

e.ezae e.92a4 4.3s45m MONT4 x PLANT St.

e.29 4 e.ezit 4.437L**

8.

e.esar e.tetr e.4865 DEPTH MONTH x OEPTH St.

e. stet e.estr e.3 63 P9 ANT x OEPTH f.

e.eest e.teet e.e943 C 104 Se.

9.2945 e.eetz 99.

e.7*33 TOTAL e s!CNIFICAWT

$ 95 31 CO*eFIDE98CE L E VE L 9 em MICHLv SIGNIFICANT 6 99 3t CONFIDENCE LEVEL 8 i

r

...)

Table 2 19e* eAct 19 Fn wAM Sv EwatutE=Inc SYSTEMS FULL FACT 041AL ANALYSIS OF WARIAMCE I E MISSING VALt3ES HAVE SEEN ESit MATED 9 Coescuc'IVITY tM9HOS/CM PLANT

/FECT SELOW M

ASOVE e

STATIOMS Y-2 AND C-4 STATIONS N-l AND S-3 DEPTH EFFECT DEPTH EFFECT SOTTOM TCP

^

SOTTOM TOP Ste.See N-l 583.098 V-2 50F.000 Y-2 i

JAN 532 999 E-t 512.00s S-8 490.009 S-3 582.999 C-4 5te.see C-4 FES 503 888 N-1 490.898 N-t 496 988 Y-2 589.998 Y-2 449.000 3-1 484.e00 3-1 495 009 C-4 494.980 C-4 MAR 497.999 N-l 445.000 N-t 529.eGe if-2 525.e99 Y-2 591.098 S-9 594.000 S-8 544.488 C-4 559.999 C-4 APM 548.e00 M-1 538.409 N-8 542 898 Y-2 545 999 Y-2 5

420.999 S-3 425.e00 S-8 515.000 C 493.898 C-4 99A Y 498.000 W-8 585.930 N-t 5e3.800 V-2 505.080 Y-2 338 996 S-3 194.000 3-1 492.e04 C-4 499 889 C-4 JUN 500.000 N-I

$ 8 8. 0 9.1 N-t Se9.See V-2 494.00s V-2 439.988 S-1 443.004 6-3 445 999 C-4 434 499 C-4 JUL 515 899 N-I 597.000 N-l 588 89e Y-2 512.999 T-2 486.889 S-9 488.09e S-3 493 808 C-4 594.599 C-4 AUG 445.009 N-l 444.088 N-I 443.e80 Y-Z 43F.998 Y-2 420.e9e B-3 484.998 S-3 438.889 C-4 420.800 C-4 SEP 494.889 N-1 309.998 M-R 3ee. wee Y-2 398.930 Y-2 393.See S-8 395.089 S-8 389.000 C-4 389.800 C-4 OCT 547.000 E-3 552.489 N-B 547.880 Y-2 5*F. Gee Y-2 497.000 S-1 499.989 S-3 528 989 C-4 523.988 C-4 NOV 402 999 E-1 485.40s E-R 485.899 Y-2 495 898 Y-2 579 000 S-8 See.ees 8-5 5e9.e8e C-4 5FF.tes C-4 g

DEC 592.### X-8 594.089 e-B 592 998 Y-2 587.998 Y-2 y

541.24F 3-8 534.see S-8 5F4.899 C-4 5F9.989 C-4 24285.000 PLANT TOTAL 2349e.24F 595 937 A VE R AGE 48F.585 TOP tsofTOM 21890 088 OEPTH TCTAL 23985.24F 495 133 AVERAGE 49F.689 AMOVA EOURCE O F SUM OF SGuARES MEAN sOuAnt F-STAT MONTM 31.

2F9893. esse 253es.eF2e le.92e2mm PLANT 5.

8854.0449 8854.9449 4.0784#

MONTH E PLANT 15.

18598.2761 2699.0258 3.2598 DEPTH 3.

FS.69ee FS.49ee G.8544 MONTH,X OEPTH 88.

345 4F49 33 4258 0.0234 PLANT N DEPTH 3.

e.9059 e.5959 9.Geet EPROR 59.

778s5 8895 3348.4794 TOTAL 94.

3e4343.3394 m StCNIFICANT f 95 3C CONFIDENCE LEVEL 8 em HICHLY StGNIF8 CANT t 99 M CONFIDENCE LEVEL I

.._m._.__

Table ?

s9es e4cE 2e PROcRAn av ENC NEER po SveTEns F tf '. FACTORIAL ANALYSIS OF VARIANCE t 1 MISSING WALUES HAVE BEEN EditrATED D Of8BOLVEtp OFVGEh8 MG/L PLANT EFFECT BELOV ABOVE STATIONS X-1 ANO B-1 STATIONS Y-2 AND C-4 OEPTH EFFECT DEPTH EFFECT SOTTOM TOP ROTTOn TOP JAN 18 500 X-1 19 430 X-1 te.4et Y-2 38.588 Y-2 11 548 E-1 11 789 S-B 30.9e4 C-4 19.999 C-4 FEB 14 208 X-l 99.300 X-l lo.ees V-2 1o.700 Y-2 15.300 R-1 88.289 8-5 8.599 C-4 88.49e C-4 MAR 38.988 X-1 85 18e X-t St.49e V-2 11.19e Y-2 82 348 E-l 32.300 B-5 18.400 C-4 11.40s C-4 APR te.3ee X-1 18.7e8 X-3 88.000 Y-2 te.See V-2 15 50s B-t 13.888 B-l 10.300 C-4 10.288 C-4 NAY e.4ee X-t e.998 X-1 8.2er V-2 a.388 Y-2 8 988 6-3 e.800 S-E e.40s C-4 a.380 C-4

.*UN e.400 X-4 18.888 X-t 7.see V-2 7.600 Y-2 a.788 B-1 4.7e8 B-3 7.See C-4 7 40s C-4 JUL 7 500 X-3 7 409 X-1 7.398 V-2 7.390 Y-2

7. Te e S -E 7 488 8-1 7.500 C-4 7.488 C-4 AUG 7.tes X-1 7.288 X-t 7 3e8 V-2 7.tJe V-2 7 500 8-1 7.8e* 8-1 7.e00 C-4

7. tee C-4 SEP e.ees X-1 9 5ee X-l s.50s V-2 e.403 Y-2 4 888 8-1 a.70s B-1

e. Fee C-4 a.700 C-4 OCT 9.788 E-!

9.000 X-1 89.000 Y-2 9.688 Y-2 10 208 B-1 18.38e S-1 13 500 C-4 9.889 C-4 N

03

.*W 14.4ee y-l 14.83e X-l 13.400 Y-2 13 309 Y-2 14 888 B-1 14.888 8-1 14.089 C-4 13.848 C-4 D i t' 34 200 X-3 84.40s X-1 83.498 Y-2 33.489 V-2 14 575 h-3 14.488 S-8 14.288 C-4 14.20e C-4 PLANT TOTAL 499.775 478.889 AVERACE 88.482 9.968 SOTTOM TOP DEPTH TOTAL 4e7.eF5 49e.999 AVERAGE

%0.147 30.225 ANOVA SOURCE D F SUM OF SOUARES MEAN SOUARE F-8 TAT 4.ONTH 33.

443 0881 42.5471 234.~327ee PLANT 3.

4.e948 4.8940 32.4707me MONTH X PLANT II.

4.2958 0.J985 2.4864*e DEPTH I.

6.I445 9.3445 e.9647 MONTN X D T e f li 31.

e.4818 9.8345 0.2439 PLANT X DEPTH 5.

e.2736 0.2736 3.8242 ERROR 58.

e.4est 8.3498 TOTAL 94.

486.7852 J

e stGNIFICANT e 95 X CONFIDENCE LEVEL 9 em HIGHLY SIGNtFICANT 4 99 M CONF 8DENCE LF

L 9

3 Table 2 PnOc=An av ENC NEEn:NO eveTEns r.9es PACE 2:

FULL FACTOR AL ANALv5:5 OF VAM ANCE MISS NG VALUES NAVE BEEN EST NATED TURalO Tv JTU PLANT EFFECT AaOVE SELOW STAT)ONS x-: AND a-:

STAT ONS v-2 ANO c-4 f

DEPTH EFFECT DEPTH EFFECT BOTTON TOP BOTTON TOP JAN

..ees x-3.ees x-a 4.see v-2 3.see v-2 3.ees a-3.ees a-3.ees c-.

3.see c-+

FES 3 tee x-a

4. esp X-4.seS V-2 3.960 Y-2 3.oes P :

3.ees e-4.ees c-.

4.een c-4 nan s.ees a

4.see x-a

r. se v-2 s.eee y-s e.ees a-.

s.eee a-a r.see c-+

7.eee c-*

Aen so.see x-a se.ees x -a se.ees v-2 te.eee v-2 so.see a-se.ees a-a no.see c-.

se...

c-4 MAY 9.ees x-9.e6e x-a 9.ges v-2 a.;es v-2 s.see a-6.see a-a.eee c-+

e. we C-.

.;uN 2e.see x-a ss.ees x-a 2e.eee v-2 is. ee v-2 as.ees a-33.ees a-se.see c-.

ns.-ee c-.

sul 2e.cos x-a 2e.ees x-a es.eee v-2 2o.-ee v-2 2e.see a-as.ees a-a to.see C-4 2e..ee c-.

Auo 2s.ees x-2s.ees x-

s.ees v-2 2s.ees v-2 as.ees a-:

as.een a-:

2e.ees c-*

me.ees c-a sEP 3e.eee x-a se.ees x-a 3 e. e e s v-t So ee y-2 2s.see a-2s.ees a-2s.eee c~.

2s.:,

4 Ocf me.see x-a se.see x-.

as.ees v-2 se.

r, n

me.ees a-se.see a-as.ees c-+

is._

c-o Nov 4.see x-a 6.ees x-a 4.see y-2 7.ee

. -- T

4. sos a-4.see a-

s. sos c-4 a.se.

DEo s.see x-4.ees x-a s.ses v-2 4.ees s-2 4 7s3 is-a 6.see a-4.ese c-4 s.ese c-4 PLANT TOTAL s48.Fs3 s92,ete AVERACE

.246 32.333 BOTTOH TOP rtEPTH TOTAL ses.7s3 ssa.ees AVERACE 32.32e an.479 ANOVA SOURCE D F SUM OF 500AMES MEAN SOUARE F-STAT MONTH s439.840s 494.3744 339 4493mm PLANT 27.3s46 27.3sd6 4.Seeen NCNTH x PLANT 3.

33.

I94 3.et89 e.7275 DEPTH a.

9. e'e s ?

9.estF 2.See3 2

NONTH x DEPTH 36.4226 3 3293 e.ee44

7 PLANT X DEPTH 3.

e.e 42 4.e:62 e.0039 ERROM so.

248.ese3 4.33ee O AL 94.

s7es.aser

< l:

- M.}

m 4 CN F CANT f 9s X CONF DENCE LEVEL

/

mm HIGHLW SIGNIF CANT 99 x CONF DENCE LEVEL 8

=

L g

89e4 Pact 22 Table 2 PROGRAM Bf ENGINEERINO SYSTEMS F UL L FACTORIAL ANALYSIS OF VARIANCT 1 9 MISSING VALUES HAVE BEEN ESTEMATED 1 NATER T EMPE R AT URE DEGREEE CELSIUS PLANT EFFECT RELON ABOVE STATIONS V-2 AND C-4 STATIONS X-1 AND E-1 DEPTH EFFECT TOP DEPTH EFFECT BOTTOM TOP 6.000 Y-2 BOTTOM 4.see V-2 e.S X-3 S.e X-1 1 000 C-4 S.s C-4 JAN 0.0 s-l 3.000 Y-2 e.4 8-1 3 000 Y-2 4.0 X-3 e.e X-1 4.7 C-4 e.e C-4 FEB e.e e-1 1.88e Y-2 e.e 8-5 2.see V-2 e.e X-3 8.9 M-5 2 089 C-4 1.see C-4 1.see B-l 12 896 Y-2 32 733 Y-2 MAR 1.See B-3 9.551 X-8 9.vl5 C-4 9.2Fe X-l 9.442 C-4 17.00s Y-2 APR 9.442 6-1 9.400 B-1 17 088 Y-2 MAY 15.e99 X-5 15.e99 X-l 16.e.9 C-4 16 800 C-4 35 999 B-1 15 000 R-1 24.000 Y-2 27.889 Y-2 24 888 M-1 23.ees C-4 23.ees X-3 23 898 C-4 JUN 23 08e a-1 23 see B-1 25 000 Y-2 28 999 Y-2 24.800 X-1 24.099 X-1 24.ees C-4 24.008 C-4 23 880 Y-2 Jeft 24.000 S-1 24.00s B-l 24.00s Y-2 22.889 C-4 22.ste X-1 22.000 C-4 22 44e X-3 AUG 23 899 B-1 18 000 Y-2 23.000 8-1 86.889 Y-2 15.See M-1 35.888 C-4 16 999 C-4 84.4e9 X-3 82.ees V-2 EEP 15 00s a-1 te.ees Y-2 35.000 B-1 St.ese C-4 te.eSe X-1 3e.000 C-4 9.088 X-1 10.000 B-1 4.898 Y-2 9.888 V-2 l

OCT 10.000 E-t 9.8 C-4 e.e X-1 e.e X-3 s.s C-4 NOV e.8 B-l 4.eee v-2 e.8 S-3 4....

v-2 La e.e C-4 e..

x-1

..e X-l O

e.e C-4 OEC 0.0 R-1 e.414 B-1 552 3e4 477.545 ll.5ee PLANT TOTAL 9.949 AVERACE TOP SOYTOM 221,*

e See.Ile 14,4 P2 OEPTH TOTAL 89.546 AVERAGE ANOVA O F BUM OF WOUARES MEAN SOUARE F-BRAT SOURCE 8058.5238 735.e45s 24a.43$ Fem NONTN 5 s. - il 58.3848 89.8189mm ll, PLANT 17 8633 1.4239 e.5587 4.

ll.

4.44F1 NONTH X PLANT 1.9636 3 9436 f.

e.3949 DEPTH 4.3465 9.5778 MON 1H X DEPTH 85 e.aels e.2735

e. eels 3.

PLANT X DEPTH 147.175F 2 9435 5s.

ERROR e202.eSe4 se, TOTAL LEVEL I A CUNFIDENCE m SIGNIFICANT f 95 am HIGMLV ElGNIFICANT f 99 X CONF 80ENCE LEVEL 3 M

M W

M M

PRAIRIE ISLAND NUCLEAR GEN PLT ATTACRMENT 2 E

PRAIRIE ISLAND NUCLEAR GENERATING PLANT ENVIRONMENTAL MONITORING PROGRAM 1985 ANNUAL REPORT I

E E

LAKE PEPIN ICE THICKNESS AND WATER TEMPERATURE SURVEY E

~

E E

E by Kenneth N.

Mueller Environmental and Regulatory Activities Department J

Northern States Power Company PU 167 0

1

i I

l LAKE PEPIN ICE THICKNESS AND WATER TEMPERATURE SURVEY I

INTRODUCTION I

Modification of the cooling water system at Prairie Island Nuclear Generating Plant (PINGP) was completed in 1983.

In-creased discharge of heated water to the Mississippi River d 'r-ing winter operation without cooling towers, may elevate water temperature and influence ice thickness downstream of the plant.

Open water and unpredictable ice conditions normally exist on the nain river channel from the plant downstream to the head of Lake Pepin.

Lake Pepin is a river lake approximately 21 miles long and 2.5 miles maximum width.

The head of the lake, at river mile 785.0, is approximately 13 miles downstream of PINGP.

Depending on ice conditions and snow depth, the lower three-fourths of the lake receives recreational and commercial use, including ice-fishing, snowmobiling, ice-boating, and commercial fishing.

Ice thickness and water temperature monitoring was initiated in

1981, with the first complete season of data i

collected in 1981-82, December through March.

This report presents data from the winters of 198 -83 and 1985-86.

METHODS AND MATERIALS Ice thickness and water temperature were monitored at five tran-sects on Lake Pepin during the winters of 19;4-85 and 1985-86.

Transect locations are described in Table 1 and shown in Figurn 1.

A control transect on Sturgeon Lake (SL),

is upstream of Lock and Dam 3 and the plant discharge.

The upstream transect is not shown on the Lake Pepin area map.

Notes on visual obser-vations from shore, of the extent of ice cover near the head of Lake Pepin, were made from Greene Point, nacouta (See Appendix).

4 169

l II.

1 Five points, "A"

through "E",

were monitored per transect, with point "A" near the Minnesota shore, and point "E"

near the Wisconsin shore.

Sampling frequency was scheduled at two-week intervals, depending on safe ice conditions, Decem'>er through March.

Ice thickness and snow depth were measured and recorded to the g

nearest inch at each transect point.

Snow depth measurements reflect average depth in the vicinity of each transect point.

Water temperature was recorded to the nearest one-tenth of one degree Centigrade and measured at one-yard intervals, surface to bottom.

A YSI Model 46-TUC Tele-t,hermometer was used in 1984-85, and a Cole-Parmer Model 8110-20 thermistor was used in 1985-86.

Surface water temperature, reported as zero (0) yards depth, was actually measured beneath the ice to avoid super-cooled water created in the hole by drilling.

Bottom depth, in feet, was recorded following the last temperature at each trans-ect point.

in the vicinity log of recreational and commercial activities A

of the survey transects is on file at the Prairie Island Envi-ronmental Laboratory.

The log includes notes on:

car, truck, and snowmobile traffic on the lake: number of ice fishing

(

shelters in the general vicinity of the transects; numbers of ice fishermen and commercial fishermen; and any other pertinent 1

infcrmation.

RESULTS AND DISCUSSION t

The Lake Pepin monitoring program is a requirement stipulated by the MDNR, Division of Waters, and included in the permit for

" Work in the beds of public waters".

Survey data for 1984-85

+t l

and 1985-86 (Tables 2 and 3,

re s pe ctive ly )

are presented for l

l comparison to previous years data.

The cooling towers off-line schedule was as follows:

170

i 1985-86 1984-85 8

Offs 2 towers - Oct. 31 offs 2 towers - Oct.

3 towers - Nov. 3 3 towers - Nov. 14 4 towers - Nov. 6 4 towers - Nov. 16 Ons 4 towers - Mar. 31 Ons 4 towers - Mar. 31 Monitoring has been conducted to determine effects on ice conditions and recreational activity downstream of the plant, as related to discontinued use of cooling towers during winter

_.1 months.

Lj g{

Prior to monitoring, observations of ice conditions and recrea-tional activity were made from shore December 8, 13, and 27,

!w

[~]

1984, and December 4 and 26, 1985.

Monitoring was conducted every two weeks January 7, 1985 through February 22, 1985, and 1986.

No attempt was made to moni-January 7 through March 12, unsafe ice, tor on March 8, 1985, due to open water areas and from shore.

No riscre-limited the survey to observations which ational activity was noted on the lake at that time.

No 1

lQj observations or physical data collections were made during March The first barge of the commercial l l 1985 due to spring break-up.

shipping season passed through Lake Pepin March 8,

1985, and March 22, 1986.

1 Observations from shore at Greene

Point, Wacouta, (Appendix)

E indicate highly variable ice conditions near the head of the is directly affected by Mississippi River main lake.

This area channel, current, and may freeze, open, and refreeze several times during a winter.

Physical data were not_ collected there

]

due to continual hazardous ice conditions.

in ice thickness and water temperature occur through-Variations but appear to be within out the transects and from year to year, a normal range when natural influencing factors are considered.

4 Points D and E of Transects at Near bottom water temperatures, 171

l

\\

l and 5, usually exceed those of other pointo and transects.

This has been seen from year to year and may reflect an influence of springs or streams in the area.

Other areas that draw attention are Points A of Transects 1 and 2,

commonly referred to as Point-No-Point and Long Point, and a third point halfway between at Methodist Camp.

Submerged bars extend into thb lake at Long Point and Methodist Camp.

All three areas are along the Minnesota shore and are directly affected by main channel current.

Water temperatures at Point A, Transects 1 and 2, do not exceed those recorded throughout the lake, but appear to be more uniform from top to bottom, and exhi'ait an earlier spring warming trend.

Measureable ice cover at Point A, Transects 1

and 2,

has been generally less than at other transect points throughout the lake.

The submerged bars at Long Point and Methodist Camp apparently cause a lifting and mixing effect as current passes, thus affecting ice formation.

These effects of current have been seen prior to winter "no tower" operation and have been responsible for unpredictable ice conditions in the past.

Naturally occurring pressure ridges generally form across the lake at major points, adversely affecting ice conditions in the vicinity.

SUMMARY

Changen in the intake and discharge of the PINGP cooling water system were completed in 1983, and allowed for plant operation without cooling towers during winter months.

The Lake Pepin water temperature and ice thickness monitoring has been conduct-ed for one year prior to, one year of transition, and three years following cooling system modifications to determine ef f ects of increased warm water discharge on ice conditions and recreational activity downstream of the plant.

Variations in ice thickness and water temperature appear to be naturally in-duced, primarily by current in the upstream portion of Lake Pepin.

No riant-related effects have been detected.

I l

172

m

=

==--

--e, m

esser Table 1.

Transects Surveyed for Ice Thickness and Water Temperature on Lake Pepin.

e Approximate River Mi.1:

Minnesota t6 Wisconsin Transect 1 780.0 Point-No-Point

Maiden Rock (City of) (Boat Ramp)

Transect 2 777.5

Long Point Recreational Site (Wayside Rest Area) s d

Transect 3 774.3

Central Point

Stockholm (City of)

Transect 4 770.0 Riley Coulee

Deer Island (Recreational site /

Boat ramp)

Transect 5 767.0 Maple Springs

Pepin (City of)

(King Coulee)

Greene Point 783.3 Observations from shore, only

Points of Access Used During Survey 1

i TABLE 2.

Lake Pepin Ice Thickness And Water Temperature Sarvey Data.

Monitoring Date 1-7-85; Water Temi.(Centigrade); Bottom Depth (feet); Ice And Snow Depth (inches).

TRANSECT 1 TRANSECT 2

-TRANSECT 3 DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E 0

1.8

.6 1.2 1.0

.6

.3

.2

.6

.2

.1

.3

.4

.4 1

2.0

.6 1.2 1.0

.7

.4

.2

.7

.2

.3

.4

.4 I

2 2.0

.6-1,21.01.0

.4

.2

.7

.2

.4

.4 3

2.1

.41.21.01.9

.4

.2

.7

.2

.4

.4 4

2.3

.4 1.8 1.5 2.0

.8 4

.7

.4

.4 1.4 5

2.4 1.2 1.8 1.6 2.2

.8

.8 1.2

.7

.8

.4

.6

.7

.7 1.5 6

2.4 1.2 1.8 1.6 13'

.8

.8 1.3

.7

.8

.4

.6

.7

. 8 1. 5 '

7

-2.4 1.2 1.9 17'

.8

.8 1.4

.7

.8

.4

.6

.8

.8 1.5 8

2.3 21' 19'

.8

.8 1.4

.7

.8

.4

.7

.8

.8 1.6 9

23'

.8

.8 1.4 24' 22'

.4

.7

.8

.8 23' 10 27' 27' 26'

.4

.7 27' 26' 11

.4 30' 12 33' 13-IC4 9" 12" -13" 14" 15" 8"

3" 10" 10" 10" 7" 11" 11" 11" 11" SNOW l'

1*

1" 1"

-1" l'

1" l'

1" 1"

1" TRANSECT,4 TRANSECT 5 TRANSECT SL

.TDEPTH (yds)

A B-C D

E A

B C

D E

A B

C D

E 0

.2

.7

.6

.2

.4

.1

.1'

.0

.1

.6

.5

.7-

.6

.5 1

.4=

.7

.6

.1

.4-

.2

.1

.0

.1

.6

.5

.7

.6

.5 2

.4

.7

.6

. 2'

.4

.3

.1

.6 3'

.7

.6 3'

3

.5 1.0

.6

.2*.4

.3

.4

.1

.4 4'

.7

.5 4

.6 1.1

.9

.2

.7

.3

.4

.4 1.0

.7 8'

5

.61.11.11.01.5

.3

.4

.7 1.1 2.1.

7 6

.6 1.1 1.1 1.2 2.3

.3

.4

.9 1.2 2.3

.6 7

.6 1.1 1.2 1.4,2.4

.3

.4 1.2 2.2 2.4 17' 8

.6 1.2 1.4 1.8 21'

.3

.6 1.6 2.2 2.6 9

.7 1.4 2.2 24'

.41.01.8-2.323' 10

.8-1.7 26'

.5 1.0 26' 25' 11

.8~29' 28' 30'

12 31' 13.

ICE 12" 13" 12" 12" 13" 14" 13" 12" 12" 12" 12" 9"

9" 10" 5"

'I i

SNOW 1"

1" 1"

1" 1" '

1" 1" ~ 1" 1"

1" 2"

2" 2"

Note:

Attempts to calibrate the thermistor in the lab, following the 1

survey, confirmed erroneously high values had been recorded in the field, at all transects.

174 l

I Lake Pepin Ice thickness And Water Temperature Survey Data.

TABLE 2.

(Cont.) Monitoring Date 1-21-85; Water Temp.(Centigrade); Bottom Depth I.

(feet); Ice And Snow Depth (inches).

TRANSECT 1 TRANSECT 2 TRANSECT 3 g'

DEPTH g

(yds)

A B

C D

E

,A B

C D

E A

B C

D E

O

.0'

.0

.1

.0

.0 1

1

.0

.1

.0

.1

.0

.0 2

.0

.1

.0

.1

.0

.0 3

.0

.1

.0

.1

.0

.0 4

.0

.0 1.3

.2

.0

.1

.0

.0 5

.0

.1 1.0 1.3 10'

.0

.4

.3

.2

.1

.0

.0 6

.0

.1

.1 1.3 13'

.0

.4

.5 1.6

.1

.2

.1 1.2 7

.0

.1

.2 17'

.2

.4

.6 1.6

.1

.2

.3

-.5 1.5 8

.0

.1 20'

.2

.4

.8 20'

.1

.2

.3

.7 1.7 9

22' 22'

.2 24' 24'

.1

.2

.4

.7 24' 10 27'

.1

.2

.4 26' 11

.2

.2 28' i

12 32' 31' 13 ICE 13" 17" 18" 19" 20" 8" 13" 14" 13" 16" 14" 12" 13" 18" 16" i

SNOW 2"

2" 2"

l-TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E O

.0

.2

.0

.0 1

.0

.2

.0

.0 1

2

.0

.2

.0

.0 3'

.0

.0 3'

3

.3

.0

.4

.0

.0 4'

4

.4

.0

.5

.4

.5

.0

.6

.0 5

.4

.5

.4

.5

.8

.4

.5

.6

.6 1.3 10' 1

6

.4

.6

.7 1.7

.4

.6

.8 2.2 7

.4

.6

.8

.9 2.3

.4

.6

.8 1.5 2.7 8

.5

.6 1.2 1.4 2.4

.5

.6 1.2 2.5 20' I

9

.6

.7 1.9 1.8 23'

.5

.7 2.0 2.7 10

.6 2.4 26' 25'

.6 1.6 26' 25' 11

.7 29' 30' 29' 12

.7 13 31'

-ICE 15" 16" 15" 18" 17" 16" 16" 16" 15" 13" 13" 10" 9"

8" 12" SNOW 2"

2" 2"

1.

,i 175

w X

T.'O E 2.

Lake Pepin Ice Thickness And Water Temperature Carvey Esta.

(Cont.)

Monitoring Date 2-6-85; Water Temp.(Centigrade); Bottom Depth (feet); Ice And Snow Depth (inches).

TRANSECT 1 TRAMSECT 2 TR7.NSECT 3 DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E 0

0

.0

.0 o

.0

.0 1

.0

.0 2

0

.0

.0 3

.0

.0 4

.0

.1

.0

.1 1.1

.9 10' 5

0

.1

.2

.0

.0 g

.4 1.5 14' 6

.0

.2

.3

.9 1.6 3

4 17' 7

20'

.0

.2

.4 1.0 2.0 19' 8

24' 23'

.1

.2 4 1.0 24' 9

25' 22' 10 27'

.1

.2 4 25' 11 30' 30' 28' 12 13 ICE 23" 23" 21" 23" 25" 15" 20" 17" 21" 22" 23" 18" 21" 25" 25" SNOW 2"

2" 2"

2" 3"

4" 2"

2" 2"

TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E l

o

.0

.2

.5

.0

.0 1

.0

.0 0

.1

.0 0

.0

.3

.5

.6

.0

.0 2

.0

.1

.0 0

.0

.0 3'

3'

.6

.0 3'

3

.0

.0 2

.0

.6

.0 g

4

.1

.0

.2

.0 0

.0

.6 9'

3 5

.2 1

.0

.2

.0

.2

.4

.6 6

.2

.1

.0

.2

.5

.2

.1

.1 4

.8

.6 7

.2 2

0

.2 1.4

.2

.4 7 1.1 18' 17' 8

.2

.4

.4 2.9

.2

.8 2.4 2.7 L

9

.2

.4 1.6 1.4 24'

.7 1.9 2.8 24' 10

.4 1.4 27' 26' 1.1 2.0 25' 11

.6 29' 29' 28' 12 30' 13 ICE 22" 21" 19" 20" 21" 20" 18" 20" 20" 17" 16" 12" 12" 16" 14" SNOW 2"

2" 2"

2=

4" 4a 4"

3" 3a 3=

3=

Note:

(-) indicates no temperature was recorded due to malfunction of thermistor.

I 176

i TABLE 2.

Lake Pepin Ico Thickness And Water Temperature Survey Data, (Cont.)

Monitoring Date 2/22/85; Water Temp.(Centigrade); Bottom Depth r,

j (feet); Ice And Snow Depth (inches).

TRANSECT 1 TRANSECT 2 TRANSECT 3 (yds)

A B

C D

E A

B C

D E

A B

C D

E 0

.8

.6

.4

.3

.3 4

.3

.4

.3

.3 1

.8

.6

.4 4

.4

.6

.4

.3

.6

.4

.3

.3 2

.8

.6

.4

.5 4

.6 4

.3

.6

.5

.4

.3

.3 3

1.0

.7

.6

.5

.4 6

.4

.3

.6

.5

.4

.3

.3 4

1.2 1.0

.9

.5

.8

.6

.4

.3

.6

.5

.4

.4 5

1.21.41.01.21.9

.6

.9 1.1 1.1

.4

.6

.9

.4

.4 6

1.3 1.4 1.0 1.3 15'

.7

.9 1.1 1.1

.4

.6

.8 1.0

.8

.8 7

1.3 1.4 1.0 17'

.8

.91.11.21.8

.6

.8 1.0 1.0 1.7 8

1.3 21' 20'

.8 1.0 1.1 1.3 2.0

.6

.8 1.0 1.2 2.3 9

23'

.8 1.0 24' 23' 20'

.7

.8 1.0 1.2 24' 10 25' 27'

.7

.8 1.0 25' 11

.8

.8 28' 12 32' 31' 13 ICE 22" 20" 26" 25" 27" 16" 16" 21" 26" 21" 19" 24" 24" 24" 25" SNOW

- - - - - - - - - ~ ~ - - - -

I TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E O

.3

.4

.3

.4

.3

.2

.3

.4 1

.3

.5

.4

.3

.5

.3

.2

.4

.4 1

2

.6

.4

,3

.3

.2

.5

.4 3'

.2

.4 3'

(

3

.6

.6 4

4

.4

.5

.3

.5 4'

.2

.4 4

.6

.5

.4

.4-

.5-

.3

.5

.3 9'

5

.6

.8

.4

.6

.5

.3

.3~

.6

.3 I

6

.8

.9

.8

.9

.6 6

.3

.3 1.0

.3 7

.8

.8 1.0 1.5 1.7

.6

.7

.3 1.1 1.5 18' 8

.8

.9 1.1 2.2 2.7

.6

.8 1.5 2,9 *. 7 I

9

.9 1.6 1.6 2.8 23'

.7 1.4 2.8 24' 22' 10 1.2 2.0 26' 28' 1.3 2.4 26' 11 1.9 28' 30' 30' 12 31' i

13 ICE 24" 23" 23" 23" 24" 22" 22" 22" 25" 21" 17" 12" 12" 13" 13" SNOW Note:

Attempts to calibrate the thermistor in the lab, following the survey, confirmed error,eously high values had been recorded in the field, at all transects.

(---) indicates no snow deoth recorded due to water and slush on "g

ice,

~

i I

{

TABLE 3.

Lake Pepin Ice Thickness And Water Temperature Survey Data.

Monitoring Date 1-7-86; Water Temp.(Centigrade); Bottom Depth (feet); Ice And Snow Depth (inches).

TRANSECT 1 TRANSECT 2 TRANSECT 3 DEPTH i

(yds)

A B

C D

E A

B C

D E

A B

C D

E O

.0

.0 1

.0

.0 0

.0

.0 2

.0

.1

.0

-s

.0

.0 3

.0

.7

.1

.0

.1

.0

.0 4

.0

.4 7'

.2

.0

.2

.0

.0 5

.1

.3

.6 12' 10'

.2

.0

.6

.2

.1 6

.2

.3

.7

.2

.3

.5

.6

.3

.5

.6

.8 7

.2

.3

.7

.2

.3

.6

.8

.3

.5

.6

.8 0

.2

.4 19'

.2

.3

.6

.9

.4

.5

.6

.8 9

.2 22'

.2

.3

.6 22'

.4

.5

.5 16

.8 10 26'

.2

.3 26'

.4

.5

.7 26' 11 29' 28'

.4

.5

.5 29' 12 33' 33' 31' 13 ICE 17" 15" 19" 14" 17" 10" 16" 19" 18" 15" 14" 16" 26" 20" 24" SNOW 4"

3*

2" 4"

3" 2"

2" 4"

3" 6"

2" 4"

3" 4"

3" TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C D

E A

B C

D E

A D

C D

E O

.0

.0 1

.0

.0 2

.0

.a

.0

.0 3

.0

.0 5'

.0

.0 6'

4' 4

.0

.0 5

.0

.3

.0 10' 6

.0

.1

.0

.0 1.2 14' 7

.1

.0

.2

.0

.3 1.1 1.6 8

.2

.1

.2

.3

.1

.1 1.2 1.4 20' 9

.2

.3

.8

.5

.2

.4 1.4 1.6 10

.3

.6

.8 27' 26'

.3 1.3 27' 25' 11

.3 30' 28' 1.3 30' 12 32' 1.3 13 34' ICE 1E" 17" 20" 17" 18" 16" 21" 19" 16" :4" 21" 21" 20" 19" 18

SNOW 4"

3" 2"

3" 5"

3" 3"

1" 1"

2" 3"

2" 2"

0 178

P h

- TABLE 3.

Lake Pepin Ice Thickness And Water Temperature Survey Data.

(Cent.)

Monitoring Date 1-22-86; Water Temp.(Centigrade); Bottom Depth (feet); Ice And Snow Depth (inchos).

TRANSECT 1 TRANSECT 2 TRANSECT 3 DEPTH (yds)

?.

B C

D E

A B

C D

E A

B C

D E

O

.0

.3

.0

.2

.0

.4

.2

.0

.0 2

.3

.0

.7

.3

.0

.0'

.0

.2

.0

.0 3

.3

.4

.6

.0

.6

.7

.4

.0

.5

.0

.0 4

.5

.8

.7 1.7 8'

8' 4

.5

.0

.6

.8

.0

.0 5

.6 1.0

.9 2.0

.7

.9 1.0

.7

.9

.9 1.1 6

.7 1.0 1.0 15'

.9

.8 1.0 1.0

.7

.9 1.0

.9 1.1 7

.7 1.0 17'

.9

.8 1.0 1.2

.7

.9 1.0

.9 1.2 8

.7 20'

.9

.8 1.0 21'

.7

.9 1.0 1.0 1.3

[

9

.7

.8 23'

.7

.9 1.0 1.0 1.3

~

3 10 25'

.7

.9 1.0 27' 25' 11 2c

.7

.9 29' 12 32' 31' 13 ICE 11" 16" 19" 19" 18" 1"

13" 18" 20" 21" 16" 18" 21" 23" 25" SHOW 2"

4" 4"

4" 5"

2" 4"

3" 4"

4" 2"

3" 2"

2" 4"

13 ',

TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C-D E

A B

C D

E A

B C

D E

)

0

.0

.0 1

.0

.1

.2

.0

.0 2

.2

.0

.1

.3

.0

.0 3

.3

.0

.1

.3

.0

.0 5

.0 6'

4' 4'

4

.4

.3

.4 4

.2

.3

.0

.3

.0

.3

.0 5

.4

.5

.8

.4

.6 1.4 11'

'3 6

.4

.5

.6 1.0

.5

.9 2.0

!g 7

.4

.5

.6 1.1

.5

.7 1.0 2.1 8

.4

.5

.6 1.3

.5

.6

.8 1.2 2.2 L

9

.4

.5 1.2 1.4 23'

.5

,6

.9 1.3 23' lE 10

.4

.6 27' 26'

.7

.6 1.0 25' 5

11 30' 3c' 29'

.6 27' 12 31' 13 l

5 ICE 21".20" 19" 17" 21" 20" 20" 19" 16" 21" 23" 17" 21" 20" 19" SNOW 3"

2" 3"

3" 4"

2" 2"

3" 3"

4" 4"

3" g

,a i

IM 4

I 179 iI

1 i

4 TABLE 3.

Lake Pepin Ice Thickness And Water Temperature Survey Data.

(Cont.)

Monitoring Date 2-5-06; Water Temp,(Centigrade); Bottom Depth (feet); Ice And Snow Depth (inches).

TRANSECT 1 TRANSECT 2 TRANSECT 3 DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E i

0

.1

.0

.0 1

.2

.0

.1

.0

. 0'

.0

.0 2

.3

.0

.2

.0

.0 3

.3

.0

.5

.0

.C

.0

.0 4

.6

.7

.6

.5 1.1 8'

.0

.1

.0

.0 j

5

.7

. 6 1. tl

.6

.1

.0

.4

.0 6

.9

.7

.6 15'

.6

.7

.6

.2

.3

.4

.4 7

.8

.8 17'

.6

.7

.6

.9

.2

.4

.6 8

.8 21' 19'

.6

.7

.6 21'

.2

.4

.9 9

24'

.6

.7 24'

.3

.4

.5 24' l

10

.6 26'

.3

.4

.4 27' 11 28'

.3

.4 28' 12 33' 31' l

13 ICE 13" 19" 16" 22" 18" 14" 13" 18" 20" 22" 8" 22" 20" 24" 26" l

SNN 6"

6" 6"

4" 6"

2" 7"

9" 4"

6" 4"

4" 5"

5" 5"

.t

.i TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C' D

E A

B C

D E

A B

C D

E 0

.0

.0 1

.0

.0 2

.0

.1

.0

.0 3

.1

.0

.1

.0

.0 5'

.0

.0 5'

4' 4

.2

.0

.3

.0

.0 9'

.0 5

.2

.0

.3

.3 1.0

.0 6

.3

.2

.3

.4

.5 2.2 13' 7

.3

.8

.4

.6

.9 2.3 8

.3

.4 2.0

.4

.8 1.6 21' 9

.3

.4 1.3

.8 24'

.4

.4 1.2 1.8 10

.4

.7 27' 25'

.4

.7 26' 25' 11

.4 29'

.9 30' 12 31' 31' 13 ICE 23" 21" 24" 22" 24" 18" 23" 21" 19" 20" 24" 20" 19" 18" 16"

[

SNOW 5"

6" 4"

5" 5"

6" 5"

4" B"

5" 6"

4" 4"

4 l

180

t TABLE 3.

Lake Pepin Ice Thickness And Water Temperature Survey Data.

(Cont.)

Monitoring Date 2-19-86; Water Temp.(Centigrade); Bottom Depth (feet); Ice And Sncw Depth (inchen).

TRANSEPT 1 TRANSECT 2 TRANSECT 3 DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E O

.0

.0 0

.0

.0 1

.1

.0

.0 0

.0

.0 2

.2

.0

.2

.0

.0 0

.0

.0 3

.2

.0

.3

.0

.0 4

.6

,/

.5

.6

.5 8'

.0

.1

.0

.0 5

.7

.8

.6

.7 10'

.3

.3 4

.5

.1

.0

.3

.0 1

6

.7

.8

.6

.7

.6

.8

.1

.2

.3

.4

.1 7

.7

.8

.7 16'

.6

.6 1.0

.1

.3

.4

.6 8

.7 20' 19'

.6

.6 20'

.1

.3

.4

.7

[

S

.7

.6

.6 23'

.2

.3

.4 24' 5

10 25' 27' 25'

.3

.3 25' 11

.4

.3 28' 12 31' 31' 13 ICE 18" 15" 25" 22" 21" 11" 18" 19" 19" 24" 18" 20" 23" 26" 26" SNOW 6"

7" 6"

9" 9"

5" 6"

6" 6"

6" 7"

7" 8"

1 TRANSECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E 1

0

.0

.0 1

.0

.1

.0

.0 2

.1

.0

.2

.0

.0 3'

3' 3

.3

.0

.3

.0

.0 4'

.0 5'

I 4

.3

.0

.4

.3 9

.0

.0 5

.3

.2

.3

.0

.4

.6 1.2

.0 6

.4

.2

.5

.4

.7

.4

.5

.7 2.8

.0 1

7

.4

.3

.6

.4

.9

.4

.5

.5 1.0 2.9 18' 8

.4

.3

.6

.7 2.2

.4

.5

.6 2.2 20' 9

.4

.5 1.5 1.5 24'

.4

.6 1.0 24' 10

.4

.9 26' 25'

.7

.7 26' i

11 30' 28' 30' 30' 12 13 ICE 24" 23" 27" 25" 23" 23" 23" 21" 24" 22" 22" 22" 18" 18" 22" SNOW 7"

7" 6"

7" 8"

7" 6"

9" 7"

8" 10" 7"

8" 8"

8" i

l.

t I

181

TABLE 3.

Lake Pepin Ice Thickness And Water Temperature Survey Data.

(Cont.)

Monitoring Date 3-12-86; Water Temp.(Centigrade); Bottom Depth (f eet); Ice And Snow Depth (inches).

TRANSECT 1 TRANSECT 2 TRANSECT 3 DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E o

.0

.1

.0

.1

.0

.0 1

.0

.0 0

.1

.0

.1

.0

.0 2

.0

.2

.1

.0

.1

.0

.0 3

.3

.5

.1

.0

.5

.1

.0

.1

.0

.0 4

.5

.6

.8 1.6 7'

.3

.8

.0

.2

.0

.0 5

1.0

.7

.9 2.0

.6

.8

.8 1.5

.4

.5

.6 1.0

.9 6

1.0

.8

.9 14'

.6

.8

.8 1.6

.5

.6 1.1 1.5 7

1.0

.8 17'

.6

.8

.8 1.6

.5

.6 1.1 1.6 8

1.0 20 '

.6

.8

.8 20'

.5

.7 1.1 2.0 9

22'

.6 24' 22' 20'

.5

.7 1.1 24' 10 27'

.5

.7 26' 11

.5 30' 29' 12 32' 13 ICE 16" 23" 27" 27" 25" 4"

20" 26" 25" 13" 22" 23" 29"-26" SNGi 1"

1" 4"

3" 4"

1" 3"

4" 3"

0" 1"

2" 1"

2"

~

TRANGECT 4 TRANSECT 5 TRANSECT SL DEPTH (yds)

A B

C D

E A

B C

D E

A B

C D

E O

.0

.1

.0

.0 i

1

.0

.3

.0

.0 l

2

.6

. 0-

.0

.4

.0

.0 3

.8

.2

.0

.5

.0

.0 5'

.0

.0 5'

5' 4

.8

.8 1.0

.7

.0

.6

. 6-

.4

.8

.4 8'

.0 5

.9 1.0 1.0 1.0 1.6

.7 1.0

.9 1.2 1.3

.0 l

6

.9 1.0 1.1 1.2 1.7

.3 1.2 1.2 1.2 2.4 13' 7

1.01.11.11.21.7 1.0 1.2 1.4 1.3 2.9 i

8 1.0 1.2 1.2 1.3 1.7 1.0 1.2 1.4 1.4 25' 9

1.0 1.2 1.3 1.3 24' 1.0 1.2 1.4 24' 10 1.0 1.3 26' 25' 1.2 1.2 26' 11 1.0 29' 1.3'29' 12 31' 31' 13 ICE 28" 25" 29" 24" 28" 23" 29" 22" 26" 22" 26" 22" 14" 13" 19" w

SNOW 3"

4" 3"

3" 3"

3" 4"

4" 2"

3*

2" 3"

3" l

\\

e e

ID

Rguro 1.

E 1

i W

j z

1 i

. t.

,?,

'+

s 1

f

\\

1

s, ' *

==

7 O (h' l

f

s., %

O W

l g

&Y 1

m T$

{*

1

/

n%

[

+

e-

-5 O'

O@

g

\\

.1 T

Ste 14 1

/

4 e

l f

Figv.e 1 (Continued).

_ Match urm S

c 4*A f

O r~

l 1

e-

. *l*

y,o A

i t

-r 1%

..t.

I

{

h_ __ ;$"3'3t'O

@, l, n

7 1

e p

s i

"J t

l 0

m,

(

k

)

l A c%,,

TRANSECT 5

_ _) _ 4\\

Q"h s

e i

1 p

184

E 1

Appendix Notes on observations of ice cover near the head of Lake Pepin, as observed from Greene Point, Wacouta, during winters of 1984/85 and 1985/86:

12-27 Unsafe ice and patches of open water; Is 1-7 Unsafe ice conditions, refrozen ice with scattered patches of open water; 1-21,22 Ice cover from Greene Pt. to head of lake; unsafe and extremely rough ice conditions exist; 2-6,8 No observations made; 8

2-20 Open water in area affected by main channel current from head of lake downstream to approximately 1/4 mile below Greene Pt.;

E 3-8 Open water from approximately 1/2 mile downstream of Greene Pt. to head of the lake; approximately 1/3 width of lake from Minnesota shore out is open water; 12-26 Greene Pt. Open water, slushy ice, bad ice; l

1-7 No observation made; 1-22 Open water, refrozen areas, and generally poor ice l

conditions appear to exist approximately 1/3 of the way across the lake and downstream of Greene Pt.,

possibly a half mile or more; there has been unsea-sonably mild weather during January;

\\

E

Appendix (Cont.)

2-5 Open water near the head of the lake extends down-stream to approximately 1/2 mile beyo'nd Greeno Pt. ;

majority of the oper, area at the upper end was nearest the Minnesota

shore, exter. ding approxi-mately 1/2 way across the laker the open area narrows near Greene Pt.

and is restricted to the current effected area along the Minnesota side.

2-19 Open water from head of lake to approximately 1/2 mile below Greene Pt.:

open area restricted primarily to area near Minnesota shore where river main channel current has most effect.

3-12 Area of open water extends from the head of the lake to approximately one nd a half milec down-stream of Greene Pt.;

the open area narrows downstream of the point and is confined near the j

Minnesota shore.

I L

l

Q 186

ML20079N372

Text

SUMMARY

=

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