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Const Effects Monitoring Annual Rept 781019-791018.
	ML19305D684
Person / Time
Site:	Phipps Bend
Issue date:	04/30/1979
From:	Olem H, Robertson E, Webb D; TENNESSEE VALLEY AUTHORITY
To:	;
Shared Package
ML19305D682	List: ML19305D681; ML19305D684;
References
	WR-50-10-80.02, NUDOCS 8004150396
	Download: ML19305D684 (95)
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TENNESSEE VALLEY Attril0RITY t

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PHIPPS BEND NUCLEAR PLANT t

CONSTRUCTION EFFECTS MONITORING REPORT OCTOBER 19, 1978 - OCTOBER 18, 1979

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! Edwin B. Robertson i Harvey Olem ,

David H. Webb ,

John W. Shipp .[

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t April 1980 8004150

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e TABLE OF CONTENTS i Section Title Page I

1 Introduction . ... . . . . . . . . . . . . . . . . . . 1 2 Surface Water Runoff . . . . . . . . . . . . . . . . . . 2 3 Ground Water Quality . . . . . . . . . . . . . . . . . . 7 4 Aquatic Macroinvertebrate Community . . . . . . . . . . 9 5 Aquatic Macrophyte Community . . . . . . . . . . . . . . 12

, i 6 Conclusions . ..................... 15 i

Appendices '

A Dates of Site Inspection . . . . . . . . . . . . . . . . A-1 '

B Phipps Bend Macroinvertebrate Enumerations . . . . . . . B-1 i

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LIST OF FIGURES Figure , g !

1 Sampling Stations for Monitoring Surface Runoff - $

Phipps Bend Nuclear Plant . . . . . . . . . . . . . . . 16 2 Permanent Ground Water Observation Wells - _

Phipps Bend Nuclear Plant . . . . . . . . . . . . . . . 17 3 Biological Sampling Stations - Phipps Bend Nuclear Plant . . . . . . .. . . . . . . . . . . . . . 18 Ge.

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LIST OF TABLES Table Pm 1 Dates of Monitoring Surveys for Peripheral Runoff, Macroinvertebrates, and Ground Water, Phipps Bend Nuclear Plant . . . . .. . . . . . . . . . .. . . . . 19 2 Results of Routine and Heavy Rainfall Peripheral Runoff Monitoring, Phipps Bend Nuclear Plant, Calendar Year 1978 .. . . . . .. . . . . .. . . . . 20 3 Results of Routine and Heavy Rainfall Peripheral Runoff Monitoring, Phipps Bend Nuclear Plant, Calendar Year 1979 .. . . . . . . . . . . . . . . . . 24 4 Precipitation Records, Phipps Bend Nuclear Plant Site, October 19, 1978-October 18, 1979 . . . . . 28 5 Water Quality of Overflows from the Yard Holding Pond . . . .. . . . .. . . . . . .. . ... 29 6 Summary of Ground Water Quality Monitoring, Phipps Bend Nuclear Plant Site, December 1978-June 1979 . . . . . ... . . . .. . . . . . . . . . . 30 7 Numbers of Artificial Substrate Samplers Placed and Recovered, Phipps Bend Nuclear Plant, October 1978-September 1979 . .. . .. . .. . 31 8 Benthic Macroinvertebrate Taxa Collected Using Artificial Substrates in the Holston River, October 1978-September 1979 .. . . . . . ... 32 ,

9 Summary of Mean Number of Macroinvertebrates Colonizing Artificial Substrates in the Holston River, October 1978-September 1979 . . . ... 36 10 Benthic Macroinvertebrate Taxa Collected from Natural Substrates in Holston River . . . . .. . 37 11 Distribution of Benthic Macroinvertebrates Collected from Natural Substrates in the Holston River . . . .. . . . . .. . . . . .. .. . . 40 12 The Mean Molluscan and Nonmolluscan Wet Biomass for the Benthic Macroinvertebrate Fauna Collected by Artificial Substrates (90-Day Exposure) from the Holston River Near the Phipps Bend Nuclear Plant, October 1978-September 1979 . . . . . . . . . . . . . . . . . . 43 iii

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LIST OF TABLES ,

(Continued)

Table Page 13 Diversity Indices (d) and Equitability Values (e) for the Benthic Macroinvertebrate Fauna -

Collected by Artificial Substrates (90-Day Exposure) from the Holston River, October 1978-September 1979 . . . .... . . . . . . . . . . . . . 44 14 Sorenson's Quotient of Similarity (Q), Natural !

Substrate Versus Artificial Substrates,.Holston River, Phipps Bend Nuclear Plant . . . . . . . . . . . 45 15 Standing Crop Determinations of Aquatic Macro-phytes in the Phipps Bend Vicinity of the Holston ,

j River Taken Along Two Sampling Transects . . . . . . . 46

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16 Frequency of Occurrence of Aquatic Macrophytes Along Permanent Sampling Transects in the Phipps ,

Bend Area of the Holston River . . . . . . . . . . . . 47 1

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1: INTRODUCTION The Tennessee Valley Authority (TVA) started construction of the Phipps Bend Nuclear Plant following the issuance of the Limited Work Authorization (LWA) by the Nuclear Regulatory Commission (NRC) on October 18, 1977. TVA has developed a:. implemented an erosion and sedimentation control plan and a construction effects aquatic monitoring plan as indicated in Part III, Sections G and I of the National Pollutant Discharge Elimination System (NPDES)

Permit No. TN0029301.

The aquatic monitoring program consists of onsite monitoring of surface runoff, monitoring of point source discharges identified in the NPDES permit, and limited instream biological monitoring. The program is tied to a feedback mechanism for implementing corrective action before significant adverse impacts occur in the Holston River. Should the results of the runoff monitoring indicate conditions that may have potential for producing significant adverse effects on the aquatic environment, onsite project personnel will be notified to implement corrective action.

This report is to evaluate the aquatic monitoring program for the second year (October 19, 1978 through October 18, 1979) of construction as required by the NPDES permit, Part III,Section I. Included in this report are data from peripheral runoff monitoring, selected heavy rainfall sampling, ground water monitoring, instream aquatic macroinvertebrate monitoring, and aquatic macrophyte monitoring. Dates of site inspections are also included in Appendix A.

The monitoring of point source discharges as identified in Part I of the NPDES permit have been reported separately in accordance with the requirements in l Part I.C.2.

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l 2: SURFACE WATER RUN0FF Introduction Peripheral runoff monitoring was conducted on a prescheduled monthly 7 basis at four sampling locations (Figure 1). Two stations were located on ,

Stony Point Creek (miles 1.7 and 0.1). The other two stations were points on an unnamed tributary to Stony Point Creek (miles 0.75 and 0.1). Both Stony Point Creek and the unnamed tributary receive nonpoint runof f from the con- j struction site. Water samples were analyzed for temperature, turbidity, pH, and suspended solids (nonfilterable residue).

Precipitation records for the period between October 19, 1978, and October 18, 1979, were made by the onsite environmental engineer. When the ,

l rainfall intensity in the vicinity of the project exceeded 0.3 inches per hour or 1.0 inch par 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the project environmental engineer notified the l Water Quality Branch. Af ter notification of such occurrences, additional

" heavy rainfall" monitoring at the peripheral runoff sampling sites was con- '

ducted at the discretion of the Water Quality Branch. Dates of the peripheral runoff monitoring surveys both routine and those selected for heavy rainfall j monitoring, are listed in Table 1. Additional water quality monitoring was I

conducted following heavy rainfall events (March 7 and August 30, 1979) due to f

overflow of the yard holding pond. The overflows did not occur at the permitted ,

pond discharge location (Figure 1).

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Results and Discussion 6

Peripheral Runoff Monitoring Monitoring data for calendar years 1978 and 1979 are summarized in Tables 2 and 3, respectively.

The precipitation records for the reporting period are presented in Table 4. The " heavy rainfall" criteria were documented on 14 occasions. Six heavy rainfall incidents were selected for peripheral runoff monitoring (see Table 1). The results from these special samples are also included in Tables 2 and 3.

The routine peripheral runoff monitoring data were evaluated to detect differences in water quality between sampling locations upstream of the con- ,

struction site and those downstream or on the construction site. In most cases the suspended solids concentration and turbidity at the downstream location was higher than at the upstream location. The average suspended solids concentration and turbidity at the downstream location on Stony Point Creek was approximately 1.5 times greater than at the upstream location.

Likewise, the average suspended solids concentration and turbidity at the downstream location on the unnamed tributary was approximately 2.0 to 2.5 times greater than at the upstream location (significance of the effects on the Holston River are asscssed in sections 4 and 5).

These monitoring data were analy, zed for statistical significance using the t-test of paired observations. This analysis reveals that these differences were statistically significant at rather high levels of confidence (i.e., all greater than 80 percent). This evaluation together with the location of the sampling points indicates that it is reasonable to believe that con-struction activities increased the suspended solids concentration and turbidity ,

i of both the unnamed tributary and Stony Point Creek.

The pH of Stony Point Creek varied very little between upstream and downstream locations. The average pH at the upstream location was 7.6, while at the downstream location it was 7.7. The pH at the downstream locatior af

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O the unnamed tributary was usually higher than at the upstream. The average pH at the upstream location was 7.4, while the average at the downstream location was 7.6.

The heavy rainfall peripheral runoff monitoring data were also evaluated for upstream versus downstream differences in water quality. In all cases the suspended solids concentration and the turbidity were higher at the downstream location on each stream than at the upstream location. The pH was usually very near the same at each location on the respective stream. The average suspended solids concentration and turbidity at the downstream location on Stony Point Creek was approximately 3.5 to 4.0 times greater than at the ,

upstream location. Likewise, the average suspended solids concentration and turbidity at the downstream location on the unnamed tributary was approximately 6.5 times greater than at the upstream location (significance of the effects on the Holston River are assessed in sections 4 and 5).

These data were also analyzed for statistical significance and were also found to be significant at rather high levels of confidence (i.e., all greater than 80 percent). This reinforces the previous conclusion that con-struction activities increased the suspended solids concentration and turbidity of both the unnamed tributary and Stony Point Creek.

Turbidity (up to 1000 JTU) and suspended solids (up to 1300 mg/1) values were generally higher for samples collected during heavy rainfall -

events than during the routine sampling periods. The onsite environmental engineer was notified of these analyses so that mitigative action could be initiated (e.g., seed and mulch slopes, rebuild straw dikes, etc.).

The peripheral runoff monitoring data for this reporting period compares closely to the preceding period (April 19, 1978 to October 18, 1978). As i

expected, the unnamed tributary to Stony Point Creek was generally higher in

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turbidity and suspended solids values than Stony Point Creek.

i Overflow of the Yard Holding Pond On March 5,1979, heavy rains at the project over the weekend (2.58 4

inches) resulted in the overflow of the yard holding pond dike from a location dif ferent f rom the pond discharge structure (serial 001). The overflow occurred at a point (Figure 1) where the top of the dike was below the 1 designed grade elevation (the dike was not up to grade at the time of the rainfall event as a result of subsidence) and below the elevation identified in the project's field environmental procedures for discharging from serial 001. Samples were taken of the sheet overflow at the dike on March 5 and 6 and at the point where the water entered the river on March 6. The results are shown in Table 5. On March 7, project personnel began pumping water from the holding pond. This action was taken to prevent significant erosion of the dike that may have affected its structural integrity and to provide needed storage capacity in the pond. To prevent tnc entrainment of excessive amounts of silt, the intake pipe for the pump was supported above the bottom sediments.

No additional samples of the pump discharge were taken since samples of the sheet overflow were taken on each of the previous two days (March 5 and 6, 1979) and were assumed to represent worst case. Two actions were taken to prevent the recurrence of overflows such as this in the future. First, the holding pond dike was brought up to design grade elevation. Second, improved interchange capacity between the cells of the holding pond has been provided.

In retrospect, because of the restricted flow conditions in the pond, the ,

principal cause of the overflow was the inadequate interchange capability between the two cells of the holding pond.

On August 30, 1979, heavy rains at the project on the previous day (1.45 inches) again resulted in the overflow of the yard holding pond. The overflow occurred at a point (Figure 1) where recent activities associated with con-t

struction of the intake pumping station caused a small portion of the holding .

pond to be separated from the main body of the holding pond. This created a small pond with no outlet to the remainder of the pond. To prevent significant erosion of the dike that may have affected its structural integrity, project '

personnel pumped water from the small pond to the river from 2:30 p.m. to 11:00 p.m. on August 30. Approximately 816,000 gallons of water were pumped from the pond. Samples were taken of the water being discharged and of the water entering the river. The results are shown in Table 5. On August 31, f

1979, actions were taken to pump the water from the small pond to the main

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holding pond to eliminate the discharge to the river. A channel has been constructed to allow water to drain from the small pond to the main holding pond.

Conclusions The suspended solids concentration and the turbidity of both Stony Point Creek and.the unnamed tributary to Stony Point Creek were usually higher at the downstream sampling location than at the upstream. This was true for both the routine and the heavy rainfall observations. Turbidity and suspended '

solids concentrations were generally higher for samples collected during heavy '

rainfall events than during the routine sampling periods. There were generally no significant differences in the pH of either stream. On two occasions during heavy rains, the yard holding pond overflowed into the Holston River at a point different from the pond discharge structure. In both cases the turbidity

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and suspended solids concentration of the overflow was high (significance of the effects on the Holston River are assessed in sections 4 and 5). Immediate i

mitigative actions were taken in both instances to prevent similar occurrences.

3: GROUND WATER QUALITY Introduction Ground water quality was monitored in four wells at the Phipps Bend Nuclear Plant site (Figure 2). A fifth well (212-P-170) was also to have been monitored, however, a damaged casing prevented collection of samples. At prescheduled quarterly intervals (Table 1), ground water samples were collected from each well and analyzed for selected minerals, nutrients, metals, and bacteria.

Samples were initially collected using a Kemmerer-type grab sampler. In March 1979, samples were also collected using a portable submersible pump, where rassible. Data from the samples collected by both methods were compared and it was decided that the pump would be used where possible. On August 6, i

1979, however, the Nuclear Regulatory Commission issued a license amendment for the Phipps Bend Nuclear Plant which removed ground water monitoring as one of TVA's commitments in the Environmental Report. Pursuant to this change, ground water monitoring was discontinued. j Results and Discussion The data from the three quarterly ground water quality monitoring surveys ;

are contained in Table 6. These data provide three sets of comparisons (in March 1979) of the two sampling methods which were used. It appears that there were significant differences between paired data points for numerous _

parameters (e.g., well 4-P-172, suspended solids; well 105-P-171, COD; and well 204-P-173, NO +NO -N). Although the differences were recognized, it was 2 3 decided to change sampling methods after March 1979 because it was believed that the pumped samples would be more representative of undisturbed ground water.

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The quarterly ground water monitoring program did not demonstrate any unusually high concentrations of the constituents measured, nor were there major differences between observations at different wells or in ~'

different months.

Conclusions No long-term trends could be identified on the limited data collected but it is important to note that there were no unusually high concentrations i of any constituent monitored during the 9-month period (October 1978-June 1979). ,

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4: AQUATIC MACR 0 INVERTEBRATE COMMUNITY Introduction The aquatic macroinvertebrate community monitoring elevation program has been described in the June 1978 and December 1978, Phipps Bend Nuclear Plant Construction Effects Monitoring Reports. The monitoring frequency for this component is presented in Table 1.

Results and Discussion The macroinvertebrates colonizing the artificial substrates were collected at stations identified in Figure 3 during the period from April 1978 through September 1978 (Table 7) included 89 taxa (Table 8) representing 5 phyla and 20 orders. A complete listing of the quantitative enumeration data (mean number' substrate) and associated statistics of the taxa at each river mile are contained in Appendix B. The most frequently encountered and most numerous taxa were: (1) Cheumatopsyche sp., (2) Eukiefferiella sp., (3)

Hydropsyche sp., (4) Orconectes sp., (5) Pleurocera sp. , (6) Stenacron sp. ,

and (7) Stenonema sp. The highest mean total number of organisms (447.0/ substrate), was obtained at HRH 120.2 in April 1979. The lowest mean total number obtained (0.5/ substrate) occurred at KRM 124.3 in January 1979 (Table 9).

The macroinvertebrate taxa collected from natural substrate sampling, July and September, are listed in Table 10. Table 11 shows that the most frequently collected taxa were: (1) Corbicula manilensis, (2) Crangonyx sp. ,

3) Cricotopus sp., (4) Eukiefferiella sp., (5) Orconectes sp., and (6)

Pleurocera sp.

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l The molluscan and nonsolluscan biomass values recorded for the artificial ,

l substrates are summarized in Table 12. Mean molluscan biomass values ranged l

! from zero (HRM 124.3, January 1979) to 44,900 mg/ substrate (HRM 115.0, January l

l 1979). Nonsolluscan biomass varied from 0.87 mg/ substrate (HRM 119.0, November 1978) to 15,956 mg/ substrate (HRM 120.2, April 1979).

! Diversity indices (3) and equitability value (e) for the macroinvertebrate .

fauna colonizing the artificial substrates at each station are presented in

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Table 13. The 3 value for the reporting period ranged from 0.73 (HRM 124.3, l October 1978) to 3.88 (HRM 120.2, May 1979). The equitability values varied

, i from 0.27 (HRM 115.0, March 1979) to 1.20 (HRM 124.3, March 1979).

i The diversity indices (3) and (e) values were generally lower at HRM l l

115.0 and HRM 119.0 than at HRM 120.2 and HRM 124.3. In those instances when a lower than 2.00 was recorded, high numbers of either Pluerocera sp. or Ferrisia sp. were present on the substrate. ;

! The comparison of the natural substrate samples with the artificial l

substrate by Sorenson's Quotient of Similarity shows extremely wide variation l in the degree of similarity (Table 14). The results indicate that the artificial ,

substrates were colonized by different communities than the natural substrate. ,

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The 3 values, (e) values, total number of taxa and total number of organisms [

per substrate tended to be higher during the spring and summer than in the fall and winter. Neither the molluscan nor the nonmolluscan biomass exhibited

! definite seasonal trends. The total numbers of taxa increased during the ^

1 l second six months as did the nonsolluscan biomass at HRM 120.2 and HRM 124.3.

l i The total numbers per substrate did not exhibit a marked change. The declines ~

in 3 and (e) values are attributable to the seasonal aspects of the community l _.

and the accompanying changes in dominant taxa.

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Conclusions ,

The data show no consistent decline in totals numbers, biomass, d values,

.. o r (e) values occurred as a result of construction activities during the r

reporting period. Based on these results, it is concluded that the macro-invertebrate cosumunity of the Holston River has not been significantly altered by the construction activities at the Phipps Bend project. ;

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5: PHIPPS BEND CONSTRUCTION MONITORING - AQUATIC MACR 0PHYTES Introduction d

The aquatic macrophyte monitoring program consisted of two surveys along 7l the Holston River in the vicinity of the Phipps Bend construction site and the collection of species frequency data at HRM 119.9 and HRM 122.8 and the collection of standing crop data at HRM 119.9 and HRM 125.6 on May 24, 1979, and September 26, 1979. In previous years, an aerial overflight was conducted during the fall for the purpose of obtaining color imagery to be used in the assessment of construction effects on aquatic macrophyte communities of the Holston River in the vicinity of the Phipps Bend site. However, the overflight was not conducted during the fall of 1979 due to extended periods of cloudiness, water turbidity associated with the high rainfall, and mechanical problems with the plane used in aerial overflights.

Results and Discussion Surveys of the Holston River in the Phipps Bend area show the macrophyte flora to be dominated by sago pondweed (pontamogeton pectinatus L.), American pondweed (P. nodosus Poir.), curlyleaf pondweed (P. crispus L.), waterstargrass Heteranthera dubia (Jacquin) MacM. , tapegrass or eelgrass (Vallisneria americana Michx.), Canadian elodea (Elodea canadensis Michx.), and the aquatic mosses, Fissidens fontanus (B.-Pyl.) Steud. and Leptodictyum riparium (Hedw.) Warnst.

No significant changes were noted in macrophyte communities as compared to previous years, and no plants were observed to exhibit abnormalities in growth

( or form.

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Ground truth surveys of the Holston River in the vicinity of the Phipps Bend site seem to indicate that there has been little change in the floristic composition and spatial distribution of aquatic macrophyte communities. The i 1977 macrophyte community map of the Phipps Bend area is representative of aquatic species along this portion of the river. While there have been no apparent changes in macrophyte communities due to construction activities, high turbidities were noted in tributary streams draining the construction site and could potentially impact existing communities along this portion of the river.

A standing crop of 221.8* g/m2 of ash free dry weight occurred at the upstream sampling station (HRM 125.6) during September 1979 compared to 176.3 g/m2 for May 1979. The species having the greatest standing crop at HRM 125.6 in May 1979 was sago pondweed with curlyleaf pondweed, Canadian elodea, and eelgrass comprising a substantial percentage of the total standing crop (see Table 15). Waterstargrass and sago pondweed were the dominant species during the September 1979 sampling period. The ash free dry weight at the downstream station (HRM 119.9) was 44.6 g/m2 in May 1979 and 148.2 g/m2 in September 1979 with sago pondweed and waterstargrass being the dominant species in May and '

eelgrass and' sago pondweed being the dominant species in September (see Table 15).

The increase in ash free dry weight f rom May to September at both stations is indicative of normal seasonal growth. However, the percent increase from May to September at the upper station (HRM 125.6) was less than that noted in '

previous years.

A comparison of the maximum standing crop at HRM 125.6 shows the 1979 estimate (221.8 g/m2) to be intermediate to the maximum standing

Estimates rounded to the nearest 0.1 gm.

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crops of previous years (e.g., 1974-249 g/m2; 1977-136 g/m2; 1978-197 g/m2).

The 1979 estimate of 148.2 g/.n2 for the maximum standing crop at HRM 119.9 exceeds estimates for previous years (1974-52 g/m2; 1977-83 g/m2; 1978-41.4 ,

g/m2). '

Frequency data taken at HRM 122.8 showed sago pondweed, f.?amentous )

algae, and American pondweed to be the dominants during the May sampling period with sago pondweed, filamentous algae, American pondweed, and aquatic mosses (Fissidens and Leptodictyum) being the dominants at the September sampling period (see Table 16). The increased frequency of the aquatic mosses (Fissidens and Leptodictyum) from May to September probably reflects seasonal '

growth. Filamentous algae, sago pondweed, and the aquatic mosses, Fissidens and Leptodictyum, were the dominant species at HRH 119.8 during both sampling periods (see Table 16).

Conclusions Variation in the species frequency data at the Phipps Bend site seem to be influenced by normal seasonal growth and climatic events rather than any factor associated with construction activities.

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6: CONCLUSIONS ,

I The turbidity and suspended solids concentration of both Stony Point Creek and the unnamed tributary to Stony Point Creek (which receive runoff from the Phipps Bend Nuclear Plant construction site) were usually higher at the downstream sampling location than at the upstream. Increased turbidity and suspended solids concentrations in Stony Point Creek could result partially from runoff not associated with TVA construction activities. Suspended solids i

discharged to the river by Stony Point Creek have not produced long-term detectable changes in the Holston River. This conclusion is supported by the fact that macroinvertebrate and macrophyte communities in the Holston River

- .:,;= s did not demonstrate changes which can be linked to constre. tion activities at Phipps Bend.

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TABLE 1 DATES OF MONITORING SURVEYS FOR PERIPilERAL RUNOFF, MACR 0 INVERTEBRATES, AND GROUNDWATER, PHIPPS BEND NUCLEAR PLANT Scheduled Peripheral Heavy Rainfall Incidents Runoff and Macroinvertebrates Selected for Peripheral Runoff October 25, 1978 December 4, 1978 November 29, 1978 March 5, 1979 December 20, 1978 April 3, 1979 January 24, 1979 August 2, 1979 February 14, 1979 August 28, 1979 March 20, 1979 October 2, 1979 April 18, 1979 May 24, 1979 Groundwater June 19, 1979 July 10, 1979 December 21, 1978 ,

August 15, 1979 March 20 and 21, 1979 September 10, 1979 June 21, 1979 i

TABLE 2 RESULTS OF ROUTINE AND HEAVf RAINFALL PERIPHERAL RUNOFF MONITORING, PHIPPS BEND NUCLEAR PLANT, CALENDAR YEAR 1978 STATION - 476213 18I8. aOLSTCu BITIa STCHEY PCIET CSEEK 0.1

.._ ... ...= - - -

=

00003 00CCJ 00010 C0070 00098 00e00 00530 DEPTB kS&5f1CC WATER SUET VS&BPLCC Ph BESILUE 1 FICH TEMP JESB DEPTH TOT afl1 CATE TIRE EATE TI5E FELT IT EASE CENT JTU HETE&S 30 NG/L 780124 1215 1 95 6. 4 E.0 0.3 8.5 9 760222 1245 1 55 1.6 260.0 0.3 6.0 J40 760301 1000 1 95 23.0 0. 3 7.5 100 780329 0905 1 95 9.0 23.0 0.3 8.2 22 780427 1050 1 95 9.1 25.0 0.3 7.7 30 7E0504 1000 1 55 700.0 0.3 7.o b40 7E0513 1705 1 95 20.0 5C.0 0. 3 7.8 100 780524 1015 1 55 10 C 0. 0 0.J 7.6 2200 720621 1125 1 95 16.0 15.0 0.J 8.0 28 780719 1300 1 55 21.1 45.0 0.3 7.9 43 780801 1300 1 SS 300.0 0. 3 7.6 240 780814 1354 1 55 22.0 35.0 0. 3 7.8 e3 760913 1325 1 95 26.0 5.0 0. 3 7.6 7 781025 1232 1 55 17.0 5.5 0. 3 7.8 11 781129 1350 1 95 7.0 12.0 0.3 7.5 18 781204 1250 1 55 150.0 J. 3 8.0 110 781220 1500 1 95 9.0 17.0 0.3 7.7 19 ,

180124 $'

bum 8Ea 17 12 17 17 17 17 3& IIB 05 1 26.0 1000.0 0.3 U.S 2200 515I805 1 1.6 5. 0 0.3 7.5 7 Sun 17 104.2 2677.5 5.1 132.8 4100 Sua 50 17 28 b7. 5 1.eEE+06 1. 5 1038.5 5757702 alae 1 13.7 151.5 0. 3 7.8 245 VARIANCE 0 58.2 76554.3 0. 0 0.1 29b233 S1D.DEV. 0 7. 6 28C.3 0. 0 0.J See S1D.EaB. 0 2.2 6E 0 0. 0 0.1 132 COEF VAR 0 55.E 11E.0 0. 2 3.4 222 LC3 MEAN 1 11.1 e3.2 0. 3 7.8 59 781220 I

j -

_ . - m

TABLE 2 (CONTINUED)

RESULTS OF ROUTINE AND HEAVY RAINFALL PERIPHERAL RUNOFF MONITORING, PHIPPS BEND NUCLEAR PLANT, CALENDAR YEAR 1978 STATION - 476214 TRIB. TO STCNET ICINT CSEEE 0.25 UNNAMED TkIDLaA&T 0.1 00003 CCC02 00010 C0070 DEPTH 00098 00400 005J0 ESA8f1CC HATER 105E VSAMPLCC EH 1 FBCM TERP RESIDGE DATE TIM E DATE TIME JESN DEPTH TOT NFLT FEET ET EANE CENT JTU

' B ET E 65 du M G/L 780329 1320 1 95 6. 0 780427 1100 15.0 0. 3 9.0 13 1 95 9.5 $5.0 0. 3 7E0504 1000 1 55 1200.0 7.4 62 780523 1725 0. 3 7.6 1300 1 95 23.0 70.0 0. 3 780524 1030 7.5 110 1 95 550.0 0.3 780621 1135 7.1 1500 780719 0920 1 95 16.0 55.0 0. 3 8.0 93 1 55 18.3 7.0 0.3 7.8 780801 1305 1 95 110.0 15 780816 1700 0.3 7.6 90 1 95 25.0 12.0 780913 1605 1 95 0.3 7.8 12 781025 1958 24.0 S.9 0.3 7.5 21 1 15 15.0 32.0 0.3 781129 1405 1 95 7.0 1000.0 8.1 e8 781204 1310 0. 3 7.6 1300 1 55 330.0 0. 3 781220 0910 1 95 7.6 210

7. 0 E.4 0. 3 7.3 7 780329 NURSER 14 SAIIRUM 10 14 14 14 14 MINInUM 1

25. 0 1200.0 0. 3 9.0 ,

1 7.0 1500 N SUM e.4 0.3 7.1 14 152.8 3852.3 7

';*

sus SQ. 14 4.2 107.9 4781 5EAN 2798.1 3.48E*06 1. J 834.3 5710125 TARIANCE 1

15.3 275.2 0. 3 7.7 342 S1D.DET.

O 51.5 185Ee7.5 0.0 0.2 313647 0 7.2 431.1 STD.1RR. 0 0. 0 0.5 560 COEF TAE 2. 3 115.2 0.0 O 0.1 150 LOG MEAN 47.0 156.7 0. 2 5.9 164 781220 1

13.7 64.7 0. 3 7.7 81 s'

g, e 6

l l

I i

TABLE 2 (CONTINUED) l RESULTS OF ROUTINE AND HEAVY RAINFALL PERIPHERAL RUNOFF i MONITORING, PHIPPS BEND NUCLEAR PLANT, l CALENDAR YEAR 1978 STATION - 476212 HNY. 11 BhIEGE STCNEY PCINT CEEEE 1. 7

- - _ - = _ . -_--- . - _ -

00003 00CO2 00010 00070 00098 00400 005JO DEPTH bSaafLCC NATER SUFB VSA8PLOC PH RESIDUE 1 7505 TEEP JESN DEPTH TOT NFLT CATE IIRE DATE TI58 FEET ET EANE CENT JTO BETEBS SO nG/L 780124 0856 1 SS 6.5 5.0 0.3 8.4 9 780222 0948 1 95 2. 2 1. 5 0.3 8.1 1A 760301 1000 1 $5 1.7 0. 3 8.3 3 780329 0820 1 95 7.5 4.0 0. 3 7.3 8 720427 0825 1 55 8.5 24.0 0.3 7.7 35 780504 0930 1 95 330.0 0.3 7.6 460 780523 1934 1 95 20.0 15.0 0.3 7.8 18 7E0524 1000 1 95 700.0 0. 3 7.6 1100 780621 0835 1 SS 15.0 5.1 0.3 d.1 14 760719 0840 1 95 19. 4 14.0 0.3 7.6 6 160801 1330 1 55 60.0 0.3 7.o 54 780816 1833 1 95 28.0 5.9 0.3 8.0 e 760913 1635 1 95 20.0 1.9 0.3 7.b o 781025 1335 1 95 15.0 2.0 0. 3 a.1 3 181129 1530 1 SS 6.0 120.0 0.3 7.0 150 781204 1345 1 95 70.0 0.3 8.1 44 781220 1035 1 SS 8.0 5.2 0. 3 7.6 6 180124 $

N NU58EB 17 12 17 17 17 17 '

MAIIMUM 1 28.0 700.0 0.3 8.4 1100 RINIson 1 2. 2 1. 5 0. 3 7.0 IK Sun 17 158.1 1365.3 5.1 132.5 1929 SUN SQ. 17 2713.9 622538.6 1. 5 1034.9 1451089 M1AN 1 13.2 8C.3 0. 3 7.8 113 VakIANCE O 57.4 32CtC.6 0. 0 0.1 77013 STC.DEV. 0 7.6 179.1 0.0 0.4 276 SID.ERE. 0 2. 2 43.4 0.0 0.1 67 COE7 VAB 0 57.5 223.0 0.2 4.7 245 LCG HEAN 1 10.9 13.6 0.3 7.8 18 781220

. ge=,.,,d 9 4

TABLE 2 (CONTINUED)

RESULTS OF ROUTINE AND HEAVY RAINFALL PERIPHERAL RUNOFF MONITORING, PHIPPS BEND NUCLEAR PLANT, CALENDAR YEAR 1978 STATION - 476215 TRID. TO STCNEY ICINT CREEK 0.25 UNNAMED TEIBUTAar 0.75 00003 00CC2 BOO 10 00070 00096 00g 00 DEPTH Ob50 BSAEfIOC WATES 10BE TSA5PLOC FH RESIDUE CATE 1 790M TFRP JESN DEPTB 701 NFLT TIME DATE TIME rh87 BT EANK CENT J1U METEES SU MG/L 780329 1615 1 95 9.0 19.0 0.3 780427 0840 8.1 21 1 95 8. 0 3E.0 0. 3 7.3 26 780504 0915 1 55 00.0 0.3 7.3 780523 1925 150 1 95 22.0 50.0 0. 3 6.9 140 780524 1045 1 SS 120.0 0.3 7.7 780621 0840 160 t 95 17.0 7.7 0. 3 7.6 14 780719 0855 1 95 20.6 11.0 0.3 7.4 780801 1315 6 1 95 19.0 0.3 7.7 17 780816 1800 1 55 26.5 4.3 0. 3 7.5 760913 1535 5 1 95 26.0 35.0 J.3 7.1 300 781025 1440 1 S5 16.5 50.0 0.3 7.6 781129 1522 150 1 SS 7. 0 ~ 8 0. 0 0.3 7.3 270 781220 1023 1 95 9.0 11.0 0. 3 7.4 Io 7E0329 NUnBER 13 10 13 13 13 13 5AEIMUM NINIMDM 1 26.5 280.0 0.3 8.1 300 s

?"M 1 7. 0 4.3 fi. 3 6.9 5 SUR .

13 161.6 703.0 3.9 97.1 1275 U 13 3122.9 1045t2.8 i 3EAN 1. 2 726.3 255019 VARIANCE 1 16.2 54.1 0.3 7.5 98 STD.DET.

O 56.8 557E.9 0.0 0.1 10631 0 7.5 74.7 0. 0 S1D.ERE. J.3 104 O 2. 4 20.7 J. 0 CCEF VAR 0.1 29 0 46.6 13t.1 J. 2 LCC REAN e.0 106 1 14.5 28.8 0.3 7.5 781220 e4 i

, . , , ., . .< __ . , , - - , - . - - - - , - - - , . - - - -_.-.m,- , . ,, _,.

e e

e.

.2 I

I t

)

i e =

0 O w =J P N m e O e O O O e e *= 0 m O C T) N == == r N e P=

0 m 3 s .J 4Ne=4mamO N==== ==(* 4mee4cN4 8 eQZ% === c ====# m c f m == e == ==

0 O ** d == m e e O in > E N m t 60 Po 8 4> _

S 9

8 0 0 4 se C 4 4 m 4 P4 e C == P= 4 m P* m 4 de F == e == @ T e eu e * *

e e e e e e o e e ao *

e * * * *

e

8 g K .) am 4 t= 9m 9= Pe *w 4, to ran n, F= 6 Fm == 4* Pm Q se u e fu

$ Q Q. e u@

O ' -

E i,

=

e u 9 S, O en

9 m m m M

e's A A F* m m #* m m O*N fr O O s*tN m se a e =e t a e e *

e e e e o e o e e se *

e e e e o e *

m *I O Q. *= w t' O .3 S O O 0 6 O 1 o e 3 o O r e m == O O t O O O 7I O E (L =

0 0 =E a u 8 g4 tA O E ene 0 >

db b

vi eO O O O 0* O O O O O O O O* O ,.

>g e= c 2 e e e o e e e e e e e d'e'eOeP o9 e40e==

s o 4e me ee 0*

oe t 70 O W to 3 O me c e M O* O O O c e e n Oe30me4 Nee l m == 0 03 O 4 O >= g ==3 c == (l* N ==== a O m == m ao e N A

0* @ N == m N m NO e ==

m s* N

=e e m

{

h g nk I em ==

t i.

G g

p

>e e

N $

end 8 M g aa OeO OO O OeO OOO @ O O e m 0* 4 e 4 0* **

> e em g (L >= e e e e e e e e e e e e o e e e e e e 5% to 8 4J .ns E 4 P* On 4 4 P* P Q@O O P* A t'.a 40 N e == 0 e 3 I O >= .es uns == = es ao N == N N e P* == N N ==

M eO4>u =* e N 'l

% 8 3 b l g

1 MS U

) b nad 1 N O E as e e e e e O 3 O e e4 e O e

>0 0 =d O 2 e e e c' e .f* e e e 0* On e c'

=0 04a4 j C.D 2 9 O E w (D 3 0 04 H 2I to tt >

g 06

= e 2 m c4

.J B I"O OI MZ ** aa==========**ae========= m == == m M ao O O O O ==

Z Z9 O *= w == ====

bQ 1 04 w "

QK eeuw eeOQ w

m == e MS y me i

t t W O e O O O c == C o c c e O M e 1 m O e m A O == N A se e O 9 -.

8 = Oh@OPeO@@O@ 4m

= a* a= 0 ao O == ** ae O == ao an e=*

E ee40mDe@ONcON 0 N ** O N O ao N se ** O == == 0 0 ed me N A M e e e 4 P* @ a'l 0* O 8 a= O O O O O O O O O O O O == ~~

0 4 Ca O* O' O* 0* @ d' 0* O' 0* O' O* 0*

m4 O en r= P= P. r= r= pm em P= P. r= P. em

== 8 N4 40 P* I e0 n., w e e32 8 L EL

WDE44 l 6 ao =L 3 3 4 L .ma es > .as 6 a= .no E E to 4 0 .no E 24 .D=== 2 == * *w i30 eE an e p 6 .ma N3.MZEE4EOOw0N s == 3 3 =a 4 Po e- O Q C,

2 E E Wto E > e e W =d C at a >= O

e= 0 4 0' @

en 8 O F* **

a

e e e e

e s

9 p

0 *=

0 $ w -d 0 m 3 w .a me e==

== N en e .P en e O==Oe Oa N,wl J's m N 8 @ C aY % m *e N =O

=

=e=aoP.

== = P.P42P O N==# %O P 4 f"4 A 0 Ce= o P* llP 9 O @ *= t si N

P=

O wC 0 gr om *=

0 0

0 t O N P= 4 e e 4 O N e ( == P=

eeeZ eO eeeeeeeeeoee N.e eaoeO eC @

e ee ==

e m e aoe @ o #e P'= g C, G, s fmPm emem emP=enfm P= P= = P* 4 Pm 7 P. Pm w w ,,a M Pm

.A

I J .h, Pm C GB c i

5 >e P cr 5 CI$ 4 0 W

- eoe # e ,a mm m ==+ m m em m i

e O ,

.r e O a m w z ,a eeeeeeeoeeee .Pem

=e em ec = eme O o O e eeN em e

. == 0 3 E .1 *= O Ot":iO O O O O ' O n o 0 1 m - t a C O f) 00 4 a *J 4*

% == 0 4,'l O E b e >

N O, ei O$ b Ee W =sO 4 2 e Pm sp 2 Oe ee reOoOeeeOeO. 7 Oe ee ,tie .N oe oe.=e cee eP*oeesao x.e *s m y 7 eO :X M 3 srt tr* 4NN N O N O O O f'* m # e 30 0DW> N e m Pm 4 N C N *= @ e m e= O m O gg 8 Ow77 N 4

N deehAN@N c= =

yg i art

=

es e

N N we H

l2'; 4Q t O NOO@OO 00 O Sk$ ;ic; @ O N Pa c P* s e c o m Q laJ e O , aE *=

at O ** CE * * * *

e m e e6 GJ P IP o e e o e o e e o e e o e y sa gg =a, en 8 O *= w .2 ========

e == c e m o ** e, 4 P= N er, e w G ss 9 J es *= u ma

w N N N eri P. . O e ,=

g W J me >

M N b = g

%b Ze laJ N == 6 kJ 4 3*. O e N c 1 at

$Q p.e s 3 Cm i O .J G Z c e .rsO O O c c.r.O o c ogl .n soaae O P P en en c & P P en c @

s Wy . O' > eOrwm

8 04 gg ze men HN Cl *

ew pC e,

OH ,C i

se O w =

E -- e- -e -a .o -e ==

A$ H -.

e=ew. N .= 0 0 O o Z 0 Q G.

N.

{ae Q *8 Ow 6 QE dC 6 OQ

== s g eX 0 6 "!

M S us P t I O C N O e O O ** en O O e Cf) 4 m ee O m N O O e == res e e

[a] $

==

em N P* e m e e O ** 'P m e e we e.s an en e= en se es s.e e en ==

95 '

I eeO e 8

e N ee N .Ce twe.e==O0N=.e #we ==

ON o eae ** N m e O & N @ K,D P O t om O O O O O n O O O O O ==

@g 8 4 c P 05PP@PPPPPP0 em Pm em em P. em *=. P #m em >= pm'*

== e N I O$

P= 0 e8 e=

e A ea , e e (lE 2 aa = tg e w > a me en 8 *= .c :a o z a > .e.

23 ene E E W 4 Q .ad &

G8 J;, == ==

2 e= e e w

-4 e F M Z L E g 2 O Q nn, J Pe

I .ns N O e == 3 s , g == em c c.; O 4 e er 8

==

4 0 Z E E m en E > e to wwQ eI G P P P=

P.

G e 4

e e

9 1

I 6 8=

l A sa, .e W. n T* 7, O 2 *= c O 4

en n .A e m as 4 e m D is, a e e e == 4 N == == s e

== oZ e *a) m.P == P P & * *$ e 8 cGZ% mes a= es m P= a == *e e N

1 o em Q Nr @

t Q f e= 7 O G B .a. 2 m 0 3 a= ==

8 0

8 0 C e r=> e 4 4 e e m m e se C e m C #t o 4 P= N e ** 25 P.

tw e e e o e e e e o e o e o en o e e o o e o e o e 8 4 s .e e= rm n= *= e= rm em 6 m me a s em e e= a em e= a , e r=

g me 9 Q4 e 9C e6 o Pm ne r=

J 0 0

9 9 '

WG 4 e u em 9 C3 @

m m ee m m m M m m er, m m m s n 3 N m C. ^9 t*e N m a 3 e Os .e 3 gg e o e e e e o e e e e e e e o e e e e o e o e J3 4 o 4 a= w m ^ e' O O d O O ^

J d r' o r3 O m == U O 0 0 C l'

- 4 O E 't *= i g 4 e a4=. ,

g *= e vi o r b

o.. nO b .19 4 eO O O J 4 n 4 c. N O 4 o ** O m o Nr* N =e= N = e J.

r% ed z e r= $ 2 e e e e o e e e e e e e e ,e e e o e o e e e o e Og zeovA3 .J n -=e o a a' N 6 e m e O o N e a= m e e em em W 3 e O 3 ar == c P* 4 o N e 7 e z) e e N O e m m p I o *= 7 ") == N e e e e e == m N ==

e 8 .e N N g p ds 9 m a N0 e

I

=d 0 O eo de o oco coo # o G o e u, e o e. c= N O

V MM g i == 2 4 e=

Ge

e o e e e P* == P e e o e e o e o e e e o e i s e Q =w 1 2 o e J == a Q N e e e =G N a =

(/) w e O p= tee e=s == ao N ** NNN fe a em me 4 e ==

M g 2 0 D 4 W= %J ** PD g kJ B 2 N N '

I d

e=

4.

As - e u 3I N C E at eeeeeocobeece

b

rI Odoz @@ Perceee@ece

', MO e o A .m as 2 ge P0 OEme i

H p-4 a=* 0 o4 ~

3 0 + V e=

Qt Z 61 6

>= 0 MN l b

onmz ~ ==== = ~ -= ~ ~ ~ ~ ~ ~ ~ ~ m en e - msemse o o o u u ==

a= 3 o e=

o eca ee Qw n.#.

U3 aa e o Q p =s t

E I P* $

U d OmoeOOQceOONO _

e E 00ececoeemoNo 8 m e en 8%

==em **o?m?9ee@

== c ==== eeO== 7@.4. .e.

8 I

9 e e e O m & e e J N ari O N I

I re == c N o em N == me o == = 0 l 4 =to ** N A M e e e 4 rm aJ C @ O 8 >= 1 O O O O O r") O O C Q O as -

l 8 4 P P P @ @ P P @ P O' @ P P ee se g c r* em r= rm r= e= em P= em P= p. P= k N I e8 e= 0 e8 .no ens e e eh 4 0 & EE o w D .5 4 4 0 0 == Ch J .3 J 2 ens a > n e 4 *= .e E E e 4 O .ns 1 20 & == e== 2 =e o ew Qe e E oc z r g ( w c Q w g N

- 4 N 3 ag == 3 3 e 4 >= ~ Q Q o e= 9 set ** & K L eA A E P A @ %e .a u 40 em O **

p= 0 4 e @

WI Q P* P*

== - .

?

e l

t =

0 & w .J e e e N O P* e O O 8* O O @ P= e o e S 4 h e e C em O 8 m 3 m .4 N e ** e m se e N ae ** e Cee@ONEN 9 eQZ% re m m m e ** **

8 O= 0 O' e o e O ve m 1 e ==

a wc =

0 cr =

4 R: :

0 , e _ N e h m e ,. P= . ~ O N .e e - m e .e P ~ e _ P= P g o, q e e e e e e e e e e o e e e se o e e e e e e o e o e e4 L P= & P* Af*P*** e.P*F* J.

4

a.P* w **N @ ., ,e'**

W eus de ** &

9 .3 ** b 8

e e

a e e v g ezc v. m e me eee e ememe m e oe eme e eemg e egg e O N g /aNee a e ,z s e e -- e e e e e e e o e h 8 O CL = w

. eEs-C + > *J n C 3 n 0 O O O O M C 0400000e')

- e A I M ew ee =

8 e Q l' A 8 :D e

,a% P.1 8 P* 8 O 's m O O O e O z S 3 e O O e e O m e e c O t S e **

y e i F* @ Z * * * * *

e e * * * * * * =* * * * * * * *

e e m ** 8 O cr 4 3 cNPhmmmmoghmeN ONseePNeeP N N 4 0 3 W == == N m == Pm ao Pm W $ M>$7 en me se 7 ao N e.

mN P e == mesi wI P* N O

ed i e W .s e U 80 >* ve V 0

( t/) ad *4u O O QOO eO O aooem6Ne40@

gq WgQ .> e e e e e e e e e o e o e e o e e e gg 2 e =0.a (L 2

- 9 de e P= 4, N O& == N .L O N P= P e == m i 4 g Qt O o= nos es =* *=*=N N == N N e O ** == N ==

48 O e5 > W ** e t 2 N b >= $

4:

we

$4 Z O Q,3 Q Q0 W XK ** 9 N O E hC eeeeeOOOeeeCOf HH eB OsCZ P P P .? P e e e O P P gse r g 8 042e O

b .' eoe 00 OESE MP=

MN QS Z M Z == 0 AO E 8 O lE: ee 3 m3 a= .e = me se ao em .e .= me e .* ** e e ** O J O W **

t/3 ** 8 O *= w == ====

H ** 8 f O=O L, <en w

I OQ

>= 0 N 2 9 Sl :

I wJ MeceOOmOCOOcOO 4 1 N m == N O N e O =e n m e e e I ** mA *w 4 a= = -eeeOsem me e

=ee..O.N

. Omee e====.===

0 e e e P O R L e P Q N e eD O N 8

e N =* O N O ** N ** == 0 *= N ao C t == *= N M M e e e e P= c E SJ P O.

0O3OOOOOOoOraO.

I e &PPOP&PPPPPPPP N0 Q >=P= omP*PmPmPmPm Pm Pm Pm P= Pm f*

- 9 N 0 40

- 4 eI w m. e e&P 4 L g a y p g og as B 4 ==

Ca D Q Zwa>w 1 a= e 2e w&E 4 Q .w 1, e ** = 2 ==

ew ce eEst2EE4mCQwJN

= 8 e= t w N 3 en = 3 3 w e * *= CJ C O 4 e o= == 2 E E M e E > e e w .d J O ==

>= 0 g &

et P Q P* P*

- e o

s J

l TA8LE 4 '

PttCIPITAT1001 RECURDS PRIPPS BSS 1AKLEAR F1 ANT SITE OCTOBER 19. 1978 - OCTuSER 14. 1979 (INCURS CP RAINALL POR 24-NOUR PERICO DSING AT 8:00 AM INDICATED DATE)

Day of MSD Silt. .". l2 :. h MS.L DI.:. $L. h 31 h.51 5 11 68.8.L 8221' ES.I L 1 1.08* 0.21 0.22 i a

2 1.37 1.23* '

3 0.16 0.74 1.02a .h ,

4 1.54* 2.58 .b 0.45 0.!? 0.55 -

5 T* 0.97 0.27 f 6 0.34 0.51 7 0.30 0.20 T* 0.33 8 T* b +

0.13 I 9 1.95s .b 0.80 0.58*

T T* 1.98 8

0.62 10 0.44 0.02 T* T*

!! 0.07 0.02 12 T* 0.45 0.09 0.75 13 0.14 0.37 b 0.01 0.03 14 0.!! 0.05 T* 0.17 15 0.04 0.73 16 0.40 0.15 f 17 0.14 0.!! 0.66" 18 19 0.22 ,

20 0.90 0.05b 0.25 0.35 0.40 l 21 0.01 0.10 0.02 1.24* i 0.05* 1.36*'

22 T 0.20 0.16 O.03 i 23 0.34 0.52 0.29 T* T* 0.70 0.62 0.08 24 T* 0.88 0.26 0.28 0.01 l 25 0.44 1.77* 0.52 0.05 1.77* '

26 0.05 0.06 0.14 0.48 0.30 r b

47 0.45 0.25 0.00 1.45" 0.85*

1 28 T 24 0.75*

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31 0.85 0.34 0.10

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TABLE 5 l l

WATER QUALITY OF OVERFLOWS FROM THE '

YARD HOLDING POND i

Suspended Date location pH Turbidity. NTV Solids. ma/l ,

March 5,1979 overflow 7.5 160 120 !

March 6, 1979 overflow 7.3 120 84 i Entry to River 7.3 130 78 August 30, 1979 Pump Discharge 7.0 1,100 990 r Entry to River 6.7 680 320 ;

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Table 7 NUMBERS OF ARTIFICIAL SUBSTRATE SAMPLERS PLACED AND RECOVERED PHIPPS BEND NUCLEAR PLANT OCTOBER 1978-SEPTEMBER 1979 HRM 115.0 HRM 119.0 HRH 120.2 HRM 124.3 Date Placed Recovered Placed Recovered Placed Recovered Placed Recovered October 1978 2 2 2 2 2 2 2 2 November 1978 2 2 2 2 2 2 2 2 December 1978 2 2 2 2 2 2 2 2 January 1979 2 2 2 2 2 2 2 2 February 1979 2 2 2 2 2 2 2 2 March 1979 2 2 2 - 2 2 2 2 U' April 1979 2 2 2 - 2 2 2 2 May 1979 2 2 2 - 2 2 2 1 June 1979 2 2 2 - 2 2 2 2 July 1979 2 2 2 - 2 2 2 - August 1979 2 - 2 - 2 2 2 2 September 1979 2 - 2 2 2 2 2 2 24 20 24 12 24 24 24 21

a Table 8 L BENTHIC MACR 0 INVERTEBRATE TAXA COLLECTED USING ARTIFICIAL SUBSTRATES IN THE HOLSTON RIVER L OCTOBER 1978-SEPTEMBER 1979 , t Annelida Clitellata Haplotaxida ; Naididae* Tubificidae* Limnodrilus sp. Lumbriculida Lumbriculidae* ' Hirudinea I Pharyngobdellida ; Erpobdellidae* ; Rhynchobdellida Glossiphoniidae* l Helobdella sp. i Arthropoda f Crustacea ! Amphipoda i Crangonyx sp. Decapoda Cambarus sp. ' Orconectes sp. Isopoda , Asellus sp. Lirceus sp. Insecta Coleoptera > Curculionidae* Elmidae Dubiraphia sp.

D. quadrinotata (say)

Macronychus alabratus say Oulianius sp. i Stenelmis sp. Hydrophilidae ! Berosus sp. ; Psephenidae ' Psephenus sp. Diptera , Chironomidae * ' Ablabesayia sp. - Chironomus sp. , Coelotanypus sp. , Conchapelopia sp. Cricotopus sp. Dietrotendipes sp.

Arthropoda (continued) Eukiefferiella sp. Orthocladius sp. , Polypedilus sp. Procladius sp. i Psectrocladius sp. l Rheotanytarsus sp. s Stietochironomis sp. Tanytarsus sp. l Empididae* Muscidae

Rhagionidae Atherix variegata.neigen '

Simuliidae Simulium sp. S. vittatum zetterstedt Tipulidae Antocha sp. Pseudolimnophila , Tipula sp. T. abdominalis (say) r Ephemeroptera Baetidae Baetis sp. Pseedocloeon sp. ! Epheat rellidae Ephtmerella sp. , Heptageniidae [ Stenacron sp. Stenonema sp. t Tricorythidae 1 Tricorythodes sp. ! Lepidoptera

Pryalidae Paraponyx sp.

Megaloptera Corydalidae Corydalus sp. C. cornutus (Linnaeus) , Nigronia sp. Sialidae Sialis sp. Odonata ! Aeshnidae Basigeschna janata (say) Boyeria sp. ! Calopterygidae t Calopteryx sp. (syn. Agrion) ! Hetaerina sp. Coenagrionidae Argia sp. Chromagrion conditum (Hagen) Enallagma sp. Ischnura sp. i l l

b Arthropoda (continued) Corduliidae Epitheca princeps Hagen Gomphidae Gomphus sp. Hagenius brevistylus selys ' Plecoptera Nemouridae Nemoura sp. Perlidae Acroneuria sp. Perlesta placida Hagen Taeniopterygidae ' Taeniopteryx sp. Trichoptera Hydropsychidae Cheumatopysche sp. Hydropsyche sp. Hydroptilidae Agraylea sp. Hydroptila sp. Ochrotrichia sp. Leptoceridae Athripsoides u s. Leptocella sp. Oecetis sp. Psychomyiidae ' Cyrenellus fraternus (Banks) Neureclipsis sp. Polycentropus sp. Rhyacophilidae Rhyacophilia sp. Mollusca Bivalva Heterodonta Cyrenidae Corbicula manilensis Philippi Sphaeriidae J'i>baerium sp. Gastropoda Basommatophora Ancylidae Ferrissia sp. Lynnacidae Lynnaea sp. Physidae i Physa sp. 1 I Planorbidae Gyraulus sp. Heliosoma trivolis say l l l l i

O Mollusca (continued) Mesogastropoda Plueroceridae Plucrocera sp. Viviparidae Campelona decisus Currier , Platyheliminthes Turbellaria Tricladida Planariidae i Cura foremanii-(Girard) ' Dunesia _tigrina (Girard)

           *!!ema ta                                                               ,

f r

f l, I l i l l

                                                                                       . 1 Table 9

SUMMARY

OF MEAN NUMBER OF MACR 0 INVERTEBRATES COLONIZING ARTIFICIAL SUBSTRATES IN THE HOLSTON RIVER OCTOBER 1978-SEPTEMBER 1979 l HRM 115.0 119.0 120.2 124.3 October 13.5 7.5 46.5 36.0 I November 26.0 24.5 58.0 44.0 December 41.5 37.0 65.5 46.5 January 129.0 10.0 20.5 0.5 February 69.5 41.0 35.0 22.0 March _ 44.0 a 39.5 10.0 April 45.0 a 447.0 395.5 May 47.5 a 219.0 155.0 June 26.5 a 36.0 64.5 July 30.5 a 16.0 a August a a 183.5 187.0 1 September a 313.5 92.0 193.5

a. Substrates not recovered.

I { Y i

Table 10 l f BENTHIC MACR 0 INVERTEBRATE TAXA COLLECTED FROM NATURAL SUBSTRATES IN HOLSTON RIVER Annelida Clitellata Haplotaxida Naididae* Tubificidae* Lumbriculida Lumbriculidae* I Hirudinea I Pharyngobdellida Erpobdellidae* Rhynchobdellida Glossiphoniidae* l Arthropoda Crustacea I Amphipoda Crangonyx sp. E Decapoda Cambarus sp. I Orconectes sp. Isopoda ; Asellus sp. ' Lirecus sp. Insecta l Coleoptea Elmidae i Stenelmis sp. Psephenidae ; Psephenus sp. ' Diptera , Chironomidae Ablabesmyia sp. Chironomus sp. Cricotopus sp. Endochironomus sp. fI Eukiefferiella sp. Polypedilum sp. Tanytarsus sp. I Simuliidae ,

Simulium vittatum zetterstedt l Tipulidae Antocha sp. ' Tipula sp. Ephemeroptera ! Baetidae Baetis sp. ; Pseudocloeon sp. i

l b

Arthropoda (continued) Heptageniidae Stenacron sp. Stenonema sp. Tricorythidae Tricorythodes sp. Hemiptera Mesoveliidae Mesovelia sp. Megaloptera Corydaliidae Corydalus sp. Odonata Aeshnidae Boyeria sp. Calopterygidae Hetaerina sp. Coenagrionidae Argia sp. : Enallagna sp. Corduliidae Epitheca princeps Hagen Gomphidae Erpetogosphus sp. Plecoptera Perlidae Acroneuria sp. Brachyptera sp. Trichoptera Hydropsychidae

Cheumatopysche sp.

Hydropysche sp. Rhyacophilidae Rhyacophilia sp. Mollusca Bivalva l Heterodonta Cyrenidae ! Corbicula manilensis Philippi Gastropoda Basommataphora Physidae Physa sp. Planorbidae ' Gyraulus sp. G. parvas l Mesogastropoda t i Pleuroceridae Pleurocera sp.

39-Platyhelminthese Turbe11 aria Tricladida Planariidae Cura foremanii (Girard) i Dunesia tigrina (Girard)

Higher order taxa which were used as the lowest level of ide n tifi cation. '

i I 6 1 P r l t i

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Table 11 DISTRIBUTION BENTHIC MACR 0 INVERTEBRATES COLLECTED FROM NATURAL SUBSTRATES IN THE HOLSTON RIVER December 1978 March 1979 July 1979 HRM HRH HRM HRM HRM HRM HRH HRM HRM HRH HRM HRH 115.0 119.0 120.2 124.3 115.0 119.0 120.2 124.3 115.0 119.0 120.2 124.3 Amphipoda Cranaonyx sp. X X X X X X X X Basommatophora Cyraulus sp. X G. parvus X Physa sp. X X Coleoptera Psephenus sp. X Stenelmis sp. X X Decapoda , Cambarus sp. X X X X X X Xg Orconectes sp. X X X X X X X X e Diptera Ablabesmyia sp. X Antocha sp. X X Chironomus sp. X Cricotopus sp. X X X X X X X X Endochironomus sp. Eukiefferiella sp. X X X X X X X X X Polypedilum sp. X X X Simulium vittatum X X X X X Tanytarsus sp. X Tipula sp. X X X Plecoptera Acroneuria sp. X Brachyptera sp. X d w _ . _ _ _ . _ _ _ _ _ _ _ _ _ . _ _ _ _ v ,- _ , .

                                                                                               .    -                 -               .-.c,                       . - _

Cable 11 (Continued) December 1978 March 1979 July 1979 HRH HRM HRM HRM HRH HRM HRH HRM HRM HRH HRM MRM 115.0 119.0 120.2 124.3 115.0 119.0 120.2 124.3 115.0 119.0 120.2 124.3 Lumbriculida Lumbriculidae X X X X X X Pharyngobdellida Erpobdellidae X X X X X Rhynchobdellida Glossiphoniidae Trichoptera Cheumatopysche sp. X X X X X X X Hydropysche sp. X X X X X X X Rhyacophilia sp. X X X X Tricladida cura Foremanii X X X X X X X Dugesia tigrina X X X Ephemeroptera S-Baetis sp X X Y Pseudoclocon sp. X Stenacron sp. X Stenonema sp. X X X X X X X Tricorythodes sp. X Haplotaxida Naididae X Tubificidae X X X Hemiptera Mesovelia sp. X Heterodonta Corbicula manilensis X X X X X X X X Isopoda Asellus sp. X X Lircens sp. X X Lepidoptera X Megaloptera Corydalus sp. X X X X

Table 11 (Continued) December 1978 March 1979 July 1979 HRM HRH HRH HRM HRM HRM HRM HRH HRH HRH HRM HRH 115.0 119.0 120.2 124.3 115.0 119.0 120.2 124.3 115.0 119.0 120.2 124.3 Hesogastopoda X X X X X X X X X X X X Pleurocera sp. Odonata X X X X X Argia sp. X Boyeria sp. X X Enallaana sp. X X Epitheca princeps Erpetonomphus sp. X X X X X X X X Hetaerina sp. 4 1 % _ , w g

                                                                                             *~*
          . - . _ , _ - _ . . - _ . . . - , , . _    _-.__..,_._,...e._, ,e.   , , _ , y._r. , .e   , , . , , . . .        -y. . , -   _, - _ _ _ , . - - . - , _ _       ._,._.__.%.      m-,    .
                                                                                                                                                                                                      ,.,...%     _  ,,-,,,,___,r__4-.-._,..m.

Table 12 THE MEAN MOLLUSCAN AND NONMOLLUSCAN WET BIOMASS FOR THE BENTHIC MACR 0 INVERTEBRATE FAUNA COLLECTED BY ARTIFICIAL SUBSTRATES (90-DAY EXPOSURE) FROM THE HOLSTON RIVER NEAR THE PHIPPS BEND NUCLEAR PLANT OCTOBER 1978-SEPTEMBER 1979 HRH 115.0 HRH 119.0 HRH 120.2 HRH 124.3 Date Molluscan Nonmolluscan Molluscan Nonnolluscan Molluscan Nonsolluscan Molluscan Nonnelluscan (ag) (ag) (ag) (ag) October 1978 2,481 8,294 3,954 5,676 7,587 8,670 N:vember 1978 6,097 3,536 2,093 0.87 295 600 8,304 2,950 December 1978 10,280 90 5,776 78 11,865 4,950 9,456 4,879 J:nua ry 1979 44,900 87 7,754 158 5,611 1,451 0 5,079 Februa ry 1979 39,680 5,655 8,530 2,225 4,265 8,505 8,215 1,700 M rch 1979 451 939 a a 8,453 6,654 336 6,324 April 1979 6,397 4,456 a a 980 15,956 3,963 577 May 1979 3,007 3,419 a a 11,661 7,098 16 6,239 June 1979 416 1,081 a a 4,365 2,125 874 102 : July August 1979 6,881 25 a a 713 5,848 a a y 1979 ,a a a a 921 1,179 17,726 7,477 S:ptember 1979 a a 830 44,083 11,200 6,900 6,108 1,872 4

a. Substrate not recovered

Table 13 DIVERSITY INDICES (3) AND EQUITABILITY VALUES (e) FOR THE BENTHIC MACR 0 INVERTEBRATE FAUNA COI1ECTED BY ARTIFICIAL SUBSTRATES (90-DAY EXPOSURE) FROM THE HOLSTON RIVER ; OCTOBER 1978-SEPTEMBER 1979 HRM 115.0 119.0 120.2 124.3 [ 3 e 3 e 3 e 3 e 10/78 1.12 1.00 1.27 1.00 2.16 0.6 0.73 0.33 11/78 2.35 0.54 1.24 0.75 2.24 0.64 2.73 0.75 - 12/78 1.88 0.38 2.18 0.50 2.79 0.59 1.79 0.32 1/79 1.33 0.30 2.66 1.13 2.53 0.67 b 1.00 t 2/79 1.36 0.29 1.61 0.36 2.92 0.92 2.69 0.64 ' 3/79 1.31 0.27 a a 2.62 0.64 3.07 1.20 l 4/79 3.45 0.76 a a 3.57 0.38 3.19 0.39 5/79 3.31 0.75 a a 3.88 0.78 2.77 0.53 r 6/79 3.07 0.80 a a 3.02 0.92 2.60 0.44 ; l 7/79 2.07 0.83 a a 3.54 1.06 a a i 8/79 a a a a 3.32 0.63 3.61 0.58 9/79 a a 2.40 0.30 3.31 0.63 3.12 0.44 l a. Substrates not recovered !

b. Only one species present i

I I r i f 1 i l l

Table 14 ; SORENSON'S QUOTIENT OF SIMILIARITY (Q), NATURAL SUBSTRATE VERSUS ARTIFICIAL SUBSTRATES HOLSTON RIVER, PHIPPS BEND NUCLEAR PLANT HRM I 115.0 119.0 120.2 124.3 December No. of taxa from artificial substrates 13 12' 17 14 i No. of taxa from natural substrate 8 14 18 10 No. of common taxa 4 6 8 3 i Qs 38.1 46.2 45.7 25.0 I March No. of taxa from artificial substrates 11 a 14 10 No. of taxa from natural substrate 18 18 15 14 No. of common taxa 7 - 7 5 Qs 48.3 - 48.3 41.7 June No. of taxa from artificial substrates 15 a 13 18 No. of taxa from natural substrate 13 10 24 10 ; No. of cosanon taxa 3 - 9 3 Qs 21.4 - 48.6 21.4

I L b

Table 15 STANDING CROP DETERMINATIONS OF AQUATIC MACROPHYTES IN THE PHIPPS BEND VICINITY OF THE HOLSTON RIVER TAKEN ALONG TWO SAMPLING TRANSECTS Station Ash Free Dry Weight (g/m 3) Holston River Mile (HRM) Aquatic Macrophyte May 24, 1979 September 26, 1979 125.6 Sago Pondweed 104.64 82.55 American Pondweed 0.00 2.16 Curlyleaf Pondweed 26.99 0.21 Canadian Elodea 22.93 0.00 Waterstargrass 21.74 136.84 Total 176.10 221.76 , 119.9 Sago Pondweed 24.82 56.16 American Pondweed 0.00 0.00 Aquatic Moss 0.60 0.43 Curlyleaf Pondweed 0.15 0.00 Canadian Elodea 0.03 0.00 Eelgrass 3.38 91.57 Waterstargrass 15.65 0.00 Total 44.63 148.16 4 l l i

Table 16 FREQUENCY OF OCCURRENCE OF AQUATIC MACROPHYTES ALONG PERMANENT SAMPLING TRANSECTS IN THE PHIPPS BEND AREA 0F THE HOLSTON RIVER Station Frequency (%) Holston River Mile (HRM) Aquatic Macrophyte May 24, 1979 September 26, 1979 122.8 Sago Pondweed 78 72 Filamentous Algae 52 58 Aquatic Hoss Fissidens 8 38 Leptodictyum 16 40 American Pondweed 54 40 ' Curlyleaf Pondweed 16 22 Waterstargrass 8 8 Eelgrass 24 32 Canadian Elodea 14 20 119.8 Sago Pondweed 68 70 Filamentous Algae 72 86 Aquatic Moss Fissidens 62 82 Leptodictyum 62 82 American Pondweed 12 28 Curlyleaf Pondweed 4 2 Waterstargrass 0 16 Eelgrass 26 22 Canadian Elodea 2 12 t f a D

9 I

P f s i F i i I APPENDIX A k l t I r I t i

i A-1 Appendix A r LIST OF CONSTRUCTION SITE INSPECTIONS FOR > THE PHIPPS BEND NUCLEAR PLANT PROJECT

1. October 16, 1978 I

2. November 6, 1978 !

3. December 4, 1978

4. January 8, 1979

5. February 7, 1979

6. February 21, 1979 !

7. March 6, 1979 !

8. March 12, 1979 l

9. April 2, 1979

10. April 30, 1979 !

11. June 4, 1979 ;

12. June 15, 1979 I

13. August 27, 1979

14. September 17, 1979 t

15. October 15, 1979 i

[ r s (

 . O e                    a Al'I'l NDIX 13 s

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                                                                              .__                              _ PHIPPt RFND MAfRnSFNTHtt s utJfis R At t nu t - tPsttrt t tQ
  '             ---------------- -------------------------                                                                     YEARS 78                   RM=115,0                    MNo12 _ HA8tIAT.=CHAN8EDR - , - - - - - - - - - - - - - - - - - - - - _ - - - - - - - - - - - - - -

TAXQN .N __fEAN ._ . STD MIN . rAx. STDERP VAR _.____ . C V . _. _ .. 2 2.5 o,7aIt 2 3 15 c.5. 2a.sas CHfW AIQE5YCHE SP_a__. COELOTANYPUS SP. 2 0.5 0.7371 3 1 0.5 0.5 141.421 ComalCULA MANILEN535 2 .. .1 0..__1 4192 0 2 . le0. 2:0 . .141,.421._ ___ . _ _ _ _ . . DUGESIA TIGRINA 2 2.0 2.8284 0 4 2.0 8.0 141.421 ENALLAGFA SP. . . _ 2. Q.5 _0.7071.___ 0 _ . L _ _. 0.5._ 0.5 .._141.421. _ _ __ ___

  '                                             EUMIEFFERIELLA SP.                                                                                   2                 0.5              0.7071                          0           1                    G.5                    0.5                   141.421 F(RRUjjj $p,.                                                                                 ,,__g_, __1,0                              1,6142 _                       4           2                    1. g._            _ Z.g                 ,,,,,141.421 PARAP0vNx SP.                                                                                        2                 1.0              c.0000                          1           :                    C.0                    0.0                      0.000 A1.         . *? __.18ec                              648,0                        37,779
                                              .PLEuROCERA (5YNo 01VTREMA) SP,. _2__ 29,0 _ 25,9558 _

PROCLADIUS SP. I 2.0 2.8284 0 4 2.0 8.0 141 421 PSEPHENUS SP ._.2. ..__0,5 ._._0.7071 . __ _ Q . . I _ 0.5_ _ _0.5 141.421 _ _ _ _ RHYACOPHILaSt_. 2 0.5 0.7071 3 1 0.5 0.5 141.421 2 0.5 0.7071 Q_ 1 0.5 0.5 141.421 708IFlflDAf . ._. . _ . _

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   )                __________________________________________ YgAR=79                                                                                                                                     R M = 115 . o___M N e Q 1_ _ ,_H A B 17. A T o C H A.N B E D R_-------------------------------------------
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CHEUMATDPSYChf 1Ea_ _ ? 2.0 1.414 1 3 1.n 2.n 76.711 CDR8tCULA MANILEN515 2 1.5 0.707 1 2 c.5 0.5 47 140 CRANCONyx SPe 2 10.. .1 414.. 2 1,0 2,0 141,421.... ya _ . . 37 EUKIEFFERIELLA SP. 2 22,5 20.506 14.5 .420.5 91 138 _ . . ._.JERR.15511.3P... _.. 2. .0s5__ . .0.707. 0_ . . 1. _.._ _. . c . 5_ _ _ . _ O a 5 _ .141. 4 2 L_ _ _ _

                                                            *1YDROP5yCHE SP.                                                                                                                     2                 1.0                   0.000                              1                       1                  C.0                           0.0                     0 000
                     ..                  _                  PHYSA_5E,_                                                       _ _ . _. .

2 0.5 0.707 0 1 L5 0,5 141.421 PLEUR 0fERA (SYN... OxYT R d_M A ) ._,SP.._ 2 99.0 110.309 21 177 78.0 12168.0 111 423 _ ... PSECTROCLADIUS $P, 2 0,5 0.707_. .._.Q __ __1 . C . S .. . __0,5. _ _._191 9 2 L_ __ _ _. SIMULIUM VITTATUH _2 0,5 0.707 0 1 C.5 0.5 141.421 he10 e

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                                                                                                                                  ...__ ._Pd12.P1._Brun Mac ariaf hTHit FNU4FkATIuht                                                                                    CDscist e it?                                                                                                                                  29 l                    _   ?_.--------._...----.-.------------------- _ YEARe79                                                                                                                     .JH.115. 0 . _fqN 02.- . H A81 T AT =CH ANS EDR _-- ----------------- --                                                                                                      -------m-- --- -
                      .                                                    .TAXDN                                                                                                            N                MEAN._._ _.5fD_._                              Mlft _ . MAX.._.1IDEAR_                                         VAR.__.__EV                                                   -                                  -

i ASELLUS A _ ._ . _ _ _ _ L_ 0.5 0.7071 0 1 o.5 (1. 5 141.421 CAMBARUS SP.. 2 0.5 0.7071 0 1 C.5 0.5 141.421 CHgyMATop5YCHE SP... 2 .1.0 .1.4142 0. .2 _._ 1.0. 2.0 - 141.421 . ._. .___ . _. CORBICULA MANILEN515 2 3.5 3.5355 1 6 2.5 12.5 101.015

          '~. _ _ _ . _ _ _. . _ _ CRANGONYX.5P.                                                                                                            _                                2 ..               2.0                  .1. 414 L._ . _. L ._ . .. _ .3 ___ _ 1. 0 _ _ . _ _. 2 . 0 . . ._ 70.711 __...__.____

EUKIEFFERIELLA SP. 2 4.0 0.0000 4 4 00 0.0 0 000 HE T A E_R_].NA_ j p a __. _ , , , _.___,_,____2.,,,,_____9,5 0.7071 0 1 c.5 n.5 141.421 HYDROP5YCHE SP. 2 05 0.7071 0 1 C.5 05 141.421

                   . _ . _ . . _.                                            0RCONECTES.5P.                                                                                             _ 2 . _ - _ __0 5 . _                           0,7071__             _0          . _. 1_               ..Ce5               .        .0:5            ,_191.421._                                                                 _ _ _ _
                                                                     ....#HYSA SP.                                                                                                          2                  0.5                      0.7071                   0               1                    C.5                    0.5                 141.421 PLEUROCERA ($YN. OXYTREMA) SP.                                                                           ._ _2                   55.5_             ._10.6066                     68              63                      7.5        _         112 5_                   19 111.                        _ . _ _ _ . _ . _

SIMULIUM SP. 2 0.5 0.7071 0 1 C.5 05 141.421 TIPULA JD. ,, 2 0.5 0.7071 0 1 0.5 0.5 141.421

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) __. PHIPPs BgMP__M.&CROSENTHIC ENUMERATIONS = SPECIES t i sl. 23 ) _- ----------------------- ----- _-- - y--- JEAR=79 RM=115,0 MN=o3 H A B I 7 A T = QiA N 8 E D R_ --- _- _------------------------------------ TAxpN fj . .M AN . _. ..5T 0.. .N I N _. _ M A X. STDERR . V A R . _.. .. . C V _ _. _ 2 0.5 0.7071 a 1 0.5 n.5 161.621 ARGIA $ P . .__ . , . _ .._ _ ._ CAMBARUS SP.. 2 0.5 0.7071 0 1 0.5 0.5 141.421 8

            .                                                                  CHEUMATOP5YCHE SP.                                                                                           2                  3.5 -                 0.7071_._                           0_                1 -                  0.5                 0.3               .141.411._____..                             .___ _

CRANGONYx SP. 2 0.5 0.7071 0 1 0.5 0.5 141.421 _ _ . _ _____. .___. EUKIEFFERIELLA SP.. . .___.____2. _ _ _ .1.5._. 0.7071_ _.1..___._2_.__. c.5 ._.0.5. . 47.140_ __ ._ NYOROP5YCHE SP. 2 1.0 1.4142 0 2 1.0 2.0 141.421 N{Qg[[Lig_$li.3P...._... ... _ . __. 2 05 n.7n7 o 1__ _ n.5 n.5 161.42 PLEUROCERA (5YN. OxVTAEMA) $P. 2 -35.5 17.6777 23 48 12.5 _312 5 49.796 5IMULlun VITTATUM . 2 15 Z,1213... _.0. 3 15 4,5___.141,4L1 _ __ _ . ____ 47.140

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STEhDNEMA SP. 2 le5 ._0.7071 1 2 0.5 05 TAhvTAi!$u$.SP. ___.. ._..2. . 0.5 .___0.7071.. .._ D __._ 1. 0.3 0.3 . 141.421 _._ _ _ . _ _ _ N o,} },,, ,, ,,, , , , , , , , , , _ _ _ _, , ,_ ,,_ ___

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                                                                                                                . . __Pfi1FF.1 AEND MACRDRENTHfC ENUMFRATICN1                                                                                           tPFCIrt t IST                                      ,_

n _------------ .--- _--- .--- --__------------ YEARS 79 R t1 =.115 s 0._ MNeQ4 e4 A B I T AT = C ttAN8 E U R ------------- ----------------------------- __ . . _ . tax 0N N_. MEAN_ _ STD _ . .M14 . MAX._. .. S TD E RR _.._ VAR.__.._.CV _ _ _. . _ _ AGRAYLEA .$.p_. ..,_ . . , _ , . . . 2._.._QA 0.70711 0 1 c.5 OJ. 141.471 ARGIA SP. 2 2.0 1 41421 1 3 10 20 70.711

                                                      ._.CAMBARUS SP.,                                  .                                        , . _

2 10 _Q.00000 1_ 1 _. __ C . C . 0.0 _0.000 __. . _ . _ _ _ CHEUMATOPSYCHE SP. 2 0.5 0.70711 0 1 C.5 0.5 141 421 _. . . . . _ . _ _ _ _ CORBICULA.NANILEN515 . . . _ . .._.__.2__ _0.5_ .._0.70711_ _.0. L . __ C . 5_ _ _ _0.5_. 141.621. _ .. _ _ _ _ _ . _ _ _ . CRIC070 PUS SP. 2 10 1 41421 0 ..__2 1.0 2.0 141.421 _ _ _ _ . _ . __..__.DMGE 5 I A _Ij GRJN A 2 39 1.41421 2 4 1.C __ 2.0 47.140 ENALLAGMA SP. 2 1.0 1 41421 0 2 1.0 2.0 141.421

           .                                                  FERRIS $1A SP.                                                                                _2                     15             .2 12132..                                 _ D ._                                15                         4 .1__ . 141 421._.
                                                                                                                                                                                                                                                           . 31 . . . C.5 HELORDELLA SP.                                                                                   2                   05                0.70711                                  u                                                               0.5          141.421 NYOROP5vCHE 5.P.                                       _

2 _._ 1. 0_ _0 00000 1. _ 1.____0.0 .0.0 _. 0.000 . _ . _ _ _ . _ isCHkURA SP. 2 1.0 0.00000 1 1 c.0 0.0 0 000 LEPIOCELLA spa . __ 2 1.0 1.41421 o 2 1.0_ 2.0 141.421 NAIDIDAE 2 10 1 41421 0 2 10 20 141 421 _ .DRCONECTES SP.._ _ 2 _ _1. 0 .0 00000._.._ 1_ 1. C.C .00 . 0.000.. ._ ___._.__ _ ____ PLEUROCERA (syn. OXYTREMA) ._ SP. ._ 2 12.5 9 19239 6 19 6.5 84.5 ' 73 539 __. . __ . . ...POLYPEDILUM_ spa _ .2 __0.5..___0.70711 _ _.p __ .1 C.5 0.5 161.421 ._. STENACRON SP. 2 10.5 9 19239 4 17 6.5 84.5 P7.547 _ . __ Y _ _ _ __ 5 TEN 1LMIS.sp. 2 0.5 n.7n711 e i e.s n.5 141.471 w STENONEMA SP. 2 4.5 3.53553 2 7 2.5 12 5 78.567

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2 10 1 41421..___0 .Z 10 20 141 421 _ _ __ ____

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) 23 PHIPPS REND MACROBENTHIC EMUH& RATIONS , SPFCIFS LIST 1 --------- _ _ _.......--------------- yEARe79 RMellSe0 MNe05 HABITADGHANBEOR -------- _N .._ MEAM. . _. ___.5IQ_ _.._31PL ._ . M AX. . . ST D Eft R _Vall._ _ __ CV_ TA.x0N _ __ i 2 1.0 2.0 141.421 2 1.0 1.4142 D ARGIA_$P. _._ .__,,,,_, 0 0.5 05 141.421 - BAETIS SP. 2 0.S 0.7071 1 Z ._ . 0.5 .0a7071_._.Q. _ . 1. _ Q.3 . 0. 5 . 141.421__.. _. . . . _ _ 1 CRICOTOPuS SP. _ 7 1.0 20 23.570 CURA FOREMANII 2 6.0 1.4142 S _2 _ ._0.2._.___0.7071__._.0._ __.. 1 1__ _ 0. 0.5 3_ ._ . _..0.3.___M1.421

        . _ . _ _               . _ . . _       01CROTENDIPES $P.e.                          _                   . _ .

2 0.5 0.7071 0 0.5 141.421

)                                               DUGESIA TIGRINA                                                                                                                                             2           o.5         __ o.s                            47.14o 2            .l. 8          0 7071                  1 E1LEILEE111 ELL.A SP.                          .              _ _ _ _

2 1.0 1.4142 0 2 1.0 20 141.421 FERRIS 5!A SP. 0.5 Q,7071_ __ 0...__,.1_. 0,5 0,S._ ._141 421 __ _

'                                              .HEt,080E LL A. SR.                                                             . 2..                                                                                    0.5                    0.5                  141.421 2             0.5           0.7071                  0                   1 HETAERINA SP.                                                                                                                                               3 __ . 1 0.                 __2s0_                        70a711._ .

HYDROP$YCHE SP, ._ . _. . _ _2 . ____.2 3 0 __1.4142____ 1__ 05 ._141 421 2 0.5 0.7071 0 1 0.S MACRONYCHUS GLABRATUS 0 0.5 0.5 141.421 2 0.5 0.7o71 1 N A } gj p g[, __ _,,,, , _,,.. 0 0.5 0.S 141.421 DRCONECTES SP. 2 0.5 0.7071 1 220.S_ __1.4.1,421.___. PLEUROCER.A ISYN, OXYTRE. mat SP. 2 10.5 14,s492 0 21 __10.S_. .___ 2 1.S 2.1213 0 3 1.5 4.S 141.421 POLYPEDILUM SP.

2. ___.0a5 Oa7071_____9.__. . 1_. . . OnS 0. 5 _ 141.421. . . _ . _ .

                                               .PSEPHENy$ $P.                                                      _ ._

0 3 1.5 4.5 141.421 RHEDTANYTARSUS SP. 2 1.5 2.1213 82.496 Y 2 12.0 9.8995 S 19 7.0 90.0 co STENACRON SP. 6 0.5 05 12.e56 5TENONEMA SP.

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           . -----------------..---------_------------- YEAR =79_                                                                           _.

R M 115 e o . . M N e 0 6_ _ M A b l I A T.= C H APie E DR .--- .-------------------- _-------------.---- __.

 , _ _ .                                                                                 T A MON.        _                                          _                                              _ N.            MEAN. .                   .._5TD.                _MJN               _MA M___.._ 5 T D E R R                               V A R __ _ C V . ____ _ . _ .                                                      .
                                                        ._                               sg.RD5u5. 5 P4                                        ._                                                     2            n,1                       n.7n71                       n                   1                  n.s                         n9                 1at ea21 CAMBARUS SP..                                                                             .__ 2                            05                        0.7071                       o                   1                  0.5                         05                 141 421 CHEUMATOP5YCHE,SP,                                                                                            2            2,5                 _.2e1213 .                   . .1                      4                  le5                         45                     $4ea53.                                                 _

CitCOTOPUS SP. 2 1.0 1.4142 0 2 1.0 2.n _141.421

        . _ . _ _                                                          ._           CURA FOREMAN!!. _                                                                         _ __                2.._. des                   __._0.7071_.___.0. .. _. 1.                                                    0.5-                 ._.0. 5 .. _1 41.42 L _ _._ _ _

CYRNELLUS FRATERNUS __ _ 2 0.5 0.7071 0 1 0.5 0.5 141 421 _ DQG E S I 4__y j GR I N A _.. . _ _ . , 2 . . q,_5__. 0.7071 Q _ _.1 c.5 0.5 141.421 HY0kDPSYCHI SP. 2 3.0 6.2426 0 6 3.0 18 0 141.621

                                                                                    .. NEUR E C L .I p S I_5 5 p .                                      _

2 0,5 . 0.7071_. _c .1 _ C. 5_ 05 }41 421 .._ .. PLEURDCERA (5YN. OXYTREMA) SP._ 2 1.0 1.4142 0 2 1.0 2.0 141.421 POLYCENTROP 5 SP 2 5 0.707)__. O_ 1 .__C,5 0,5 141.421 RHEDTANYTAR US SI. ,

2 _0,5 0 0.7011 0 0.5 0.5 1 141.421 STENACRON SP. 2 1,0 1.4142 o 2 1.0 20 141.421 5fEEDTEMA SP. 2 5.5 7.7742 0 11 5.5 60.5 141 421

                 . _                                                                 _. TRICORYTHODES.5P,                                                       _ . . . . _ _                         2           8,5                  _12 0208. _ 0.                                     17. .                  e,5                  144.5                     141 421                                _                  . _

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                                                                                                        ,. .__.                      .. ..            ...fHfPPE REND MACRDBENTHit FkUMERATIONS                                                                                                -   SPFCIFt Ift?                                                                                                                                                                    2T
     '    . ..---__--- _---- r -----_.------------ ---- ..YEAna]9.,_.RM3115gO                                                                                                                                                                    MNa07                     MA8lTATaCHANBEDR -------------------------------------------
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2 10.0 14.1421 o 20 ILf1 2nn.o 161.421 HYDROPTILA SP. 2 1.0 1.4142 0 2 1.0 20 141.421 PLEUROCERA 15YN, OXYTREMA) SPe_ 2 8.0 11.3137_. 0 .. . 16 a.o 128.0. . 141.421__ . . . .. _ ______ PSEPHENUS SP, 2 2.0 2.8284 0 4 2.0 8.0 141.421 _ .__ STENACRON SP. _ _ _ _ . 2 _9.0. __2.8284 1. 11 . . 2.0 . .8.0 31.421. . _____.___.. .._ 0.5 0.S 141.421 TRICORYTHODE$. SP. 2 0.7071 0 1 0.5

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SPECIES L15T 12

                                                                                                                          . _ . _.f312P_3,g{jQ. MACRQ9ff77.t!LC ENU.MER&TIDNS                                                                                                                                                   __

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                                                                                                                                .                    .YE ARs]8                           RMm1}9,q _ yNell                                    HA8]TATmCHANSEDR --------------- ---------------------------

TAXON . H __ MEAN .570 M 1.3 . nAx _ STCERR VAR- . CV _ ..__. _ . COR31Cn u,e&MILLh3J3____ _ 2 2,1_ i n.uas e, 15 .L1__ _u2 5 161.621 FERRIss!A 5s. 2 _15.5 17.6777 3 2e 12.5 312 5 114 049

                                                                #LEURO.CEPA I S YN. . OXYTRE. =i A s SP.                                                                       2                          10                   1.4142                    e                     2                      1,0--                       2,0              141,421_ -         -                                .._                              __..

0.5 TOBIFICIDAE 2 .0.5 0.7071 0 1 3.5 .. 141.421 Nok

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                                  .                                                                                _ . .           .. fHIPP3 BihD NACRDBENTHIC FNUMFRATIONS = tpFCfst iIKT_                                                                                                                                                                                                                      h
                ----_--------_-------------------------.VEARe78                                                                                                                       _ R M = 119,0 . _. M_N m ) 2                           WABjfAfsCHAN8(QR ----------- ------                                                                     ---------------------
          . . .                                             ,            tax 0N                                                                                                     9           P.E AN .                 _.5TD.                      ely        . tt A K .                STDERR                    . VAR                         CV .                                _ . . . _ _ _ _
                                     ._                                  ASELLul_1b___ .                                                  . _ . _ . - - _2 _ .                                    Da5              _a.lDIL                              e                  1                .045.__          .._0.5                          10 4n CHEUMATOPSYCHE SP.                                                                                         2             15                   0.7371                            1                 2                 0.5                      0.5                     47.140 OUGESIA TIGRINA                                                                                            2             1.0                  .0.0000                           1                 1                 0.0                      0.0 ._                     D.000                             .                . . _ _ _ _

EUKIEFFERIELLA SP. 2 10 1.4142 0 2 1.0 2.0 141.421 FERRI 55!A SP, .2 6.5 __4.9497 3 _ 10. __ 3.5 24.5 _ 76.150 _ . _ _ _ _ _ GyAAULUS SP. 2 0.5 0.7071 0 1 0.5 0.5 141 421 HYDROP[YCME SP. . ,

                                                                                                                                                                              ... . L _.__ lap _                       0.0000                           2                  2                 c.0           _ _ _D . o                            0.000 CECETIS SP.                                                                                                2             G.S                  0.7071                          0                   1                0.5                       0.5                   141 421 PARAP0YNX SP,                                                                            __

2 0.5 , _ ; , 7 0 71._ ._ _. o .. , 1.. _._C.5 05 .191 421 . _. . PHYSA SP. 2 1.5 0.7071 1 2 0.5 0.5 47 140 PLEUROCERA (syn. OxyTREMA). SP. _2 __ . . _21. 5 28.9914 ) _ . _ _ .4 2 _ _ _2 0. 5 , 840.5 134.844 . RHYACOPwtLA SP. 2 0.5 0.7071 0 1 0.5 0.5 141.421 tw 9 to s e ) .. . . . . . ) < ), __ . ._ t&

) ._.. _ . _ , _ _ _ _ _ _ . __ . . _. N. . _ _._ _ _ .. ___ . . . _ _ _ _ _ _ __ _ _ _ __ .... . _ ._ _ _ _ . _ _ . . ,. . FJilR.P3.jiMD 11ACRQRENTHf C ENUMERATIDf15 . MEI. IF s t i s t _ __ 2a

          .- _---------- .------------------- ,-_----- VEAR=79                                                                                                       RMs119eQ. N N p Q 1._ . d A B I T A T o C H.A N S E D R --------------- ---------- r --------------

TAXON, ti r.EAN 570 .*I4 .. VAli

                                                                                                                                                                                                                                                     . MAX                ._STDERR                                                 __CV__.                     . _.

ASELLys.SP.____. .. .. _2 .. laQ .___1 41421 o 2 10 _.la 161.421 DUGESIA TIGRINA 2 ...0,5 0.70711 t- 1 C.5 0.5 161.421 EUKIEFFERIELLA SPs. 2 3:0 4e24264 g, 6 3.C. 1a.0 161 421 HELO8DELLA SP. . 0.70711 2 0.5 0 1 c.5 0.5 141.421 NYDRDPSYCHE SP, 2 leo . 1.=1421 0 2 1.0 2.0 141.421. __ _ . 0.5 LEPIDDPTERA 2 0.70711 L 1 C.5 0.5 141.421

                                                            .PLEUROC[$A ($YN. D xY TR E "Al S P.. .,                                                         2.             .2d _                          2 12112                   1                  -.4      .__              1 5               .            s.3                   "'.asi                       .

TIPULA SP. 2 1.0 1.91421 0 2 10 2.0 161.421 Ne8 , g g 3 6ee % pq --e- ee G Wp. 9 "_*g 9M a h g, g,,,g,e eme w-. s .- 8 _. . - . _ . . . . .. _ . ._-- __-. _ _ . - - -- ~ _ ---- -- . er gb y-_ p g.m _e ge W W.De.m g.m e.m @ 666 eamW n9 *E'"'* 8

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                .r-----_-.._.--------------_..------,-        -                                                                                                              YEARe79 JMs119 Q. .,[LN ?02                                                                 H A B l J A T s G H A P(S g_D R . ---------                                           l__3---------------------------

TAXDN , ._ N. MEAN _ STD __ 31ft MAX . STDER.R ... VAR..__ _ ._.C V_ . _ . . .

                    . . _ _ _ . . _ .                       __A31LLuft.&.__                                                                  ___ ..                     . . _ ___ - 2                                       1.E                   n 7n711                                 i                     )                  n.s                          a*                          47- 9m CAMBARUS SP.,                                                                                                          2                    1.0                   0.00000                                 1                     1                  0.0                         0.0                              0 000

__. __. _CRANGDNYX SP. _ 2 ..l a.5 2,12132 _ _0 . . 3 1.5 4.5 141.421. . .__ _ . _ _ _ _ _ _ . DUCE 51A TICRINA 2 . 0.5 0.70711 0 1 0.5 0.5 141.421 _. . ._fUE!EFFERIELLA.SP. . . _.2_. _1.0._.__0.00000 1 _1__ __ 0 . Q_ _ _0 . 0- . __ __D.000 _ ___.. HELI 5DNA TRIVOLIS 2 0,5 0.70711 0 1 0.5 0.5 141.421 NET 4EJQNA Sf _ , , _ _ , , __ 2 _ 0.5 0.70711 0 1 ._g,5 c.5 141.421 LEPIOCPTERA 2 1.0 1.41421 0 2 1.0 20 141.421 ORCONECTES Sp. _ ._ 2 . 0,5 c . 70711.. . _ C._ _. .1.. __ _0. S_ .__0 _% _..141.421 _ PHYS 4 Sp. 2 2.5 2 12132 1 4 15 4.5 84.853 PLEUROCERA (5YN. DxYTREMA) SP. 2 30,5 0.70711 - 30 31 _ 0.5.__ 0.5 2.316 . __ _ _ _ . . .N ? l l. . _ _. . . .. .. ._ s

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_ _ _ __ _.. . ...__ _Rtilpos aEND MACAQADiIMIC F N!f MF R AljuNS _ %DEEIE% 9I4Y . , _ _ 2n i

               ._________________________________________                                                                                                                ygAR.79 . an.lgy,g__nn.01__ MC817AI=CHAN8EDR_-- --- .-------- -------------- .------------
         . ._                                               . TAMON.                                        __                  .                         ..                       _         N_              HEAN                ._ . _ .S TD                      . 11*i.._ MAX                        _._5fDERR                           VAR _. .._C V __.                            _ _ _ . .                           __ .

ANT 0gMA SP ___, _,__,__ _ __ 2_ 0.5 0.7071 0 1 0.5 0.5 141.421 BAETIS SP. 2 2.5 0.7071 2 3 0.5 0.5 28.284 CHEUMATOP3YCHE SP. . 2 ._ 0.5 0.7071 0 1 . 0.5 0.5. 141.421 _ . _ _ . . . . CHIRONOMIDAE 2 1.5 2 1213 0 3 1.5 4.5 141 471

                     .__ _ .                             _    COR8tCULA MANILEN535                                                                                    ..         _.._2.._._2:5_                                         0.707L_                        _2                      3 . ___ _ . 0. 5.                            0.5 _.__.28 289 1.0 CORYDALUS CORNUTU5                                                                                                              2                                  _..0.0000                                   1                   1                   0.0                     0.0                    0.000 _ _ _ _

_.__ _ _ . . . . . _ _ GAA.NGO.N U $P.a_ . ..__._ I - 11 c.7071 1 2 o* ._ _Li. 67.14n CRICOT0 pus SP, . _ _ . . _ _ . 2 2.5 3.5355 0 2.5 12.5 5 141 421 CURA FOREMANII 2 14.5 19 ,2 9 5 ._. 3 .26_ _ 11,5 264.5 .112,162 . . _ _ . DUBIRAPHIA QUADRINOTATA 2 1.0 1.4142 0 2 1.0 20 141 421 DUGE5IA TIGRINA. __ 2 25,0 7 0711 _ 20_ 30 5,0 . 50,0 28 284 ENPIDIDAE 1.0 1.4142 2 0 2 10 2.0 141 421

        -                             _._..                  EUMEFF GDMPHul(_R_1,EJ                                                      L A ..$f e .          _

2 3.0 2.8284 1_. 5 1.Q . 8.0 94.281 SP. 2 0.5 0.7071 0 1 0.5 0.5 141 421

HVOROP5YCHE SP. 2 .15.0 14 1421 5 23 10,0 .200 0.. . 94 281 HYOROPTILA SP. 2 5.5 0.7071 5 h 0.5 05 12 856 MACRONYCHu$ GLAORA7US 2 1.0 1.4142 3. 2 .1.0 2 . 0. 141.421 NAIDIDAE 2 1.0 1.4142 0 2 1.0 2.0 141 421 _ . _ _ Y.

telGRON!_g_1,p, _ _ , ,, ,. ,__ _ _ 2_, _ .,,1 5 2.1213 0 ._ 3 1.5 4.5 141.421 a DCEROTRICHIA SP. 2 0.5 0.7071 0 1 C.5 0.5 141.421

PLEUROCERA (SYN. OXYTREMA) S P , ._ 2 187.5 95.4594_ .120 255 67 5 9112.L_ 50 912. . _

POLYPEDILUM SP. 2 6.5 0.7071 6 7 0.5 C.5 10.879 SPHAERIUM SP, 2

                                                                                                                                                                                                            . 0,5 5                   0.7071_                              a.                  1                   0.5                     0.5              141,421 .__.                               __ ______

STENACRuh SP. 2_ 1 0.7071 1 2 0.5 0.5 47 140

~~~

STENELML$~Sp. ~~ '~ 2 7.0 0.0000 7 7 c.0 0.c 0.000 STENONEMA 5ip . 2 0.5 0.7071 0 1 0.5 0.3 141 421 TRICORYTHODES SP. 2 28.0 7.0711 13 33 5.0 50.0 23 256 . _ Na27 . _ . _ _ _

               ._ _~. .__ ..                                                                         .. _                                                              -._               . _ _ _ . _ _ _ .                --                                 * - - - * * *                                                                -

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) ____ . _ _ . 15 P.Hf Ps BEND MACROBENTHtt ENUMERATIONS = SPECIES LIST I

      . . - - - - - . - - . - - - - - - - - ---------- - - - - - - -- - - -- - - _ .. Y E A R e 7_8. .                                                                       RMe120e2.._MNel0                              NA8lJAToCHAN8 EOR ------- ---------------------------------._

_ _ _ . . TAXON .N . . f E AN _ 5Tp ,_MjN max _STDERR VAR .._ .,___CV.._. . .

.i AR_G_LA_$ P _ , , _ , _ _ _ , _ _ _ , .                                                     2           201           ..1.4142                            1                   .3             1.0                          2.0                7n.711 CAMBARUS SP..                                                                               2           0.5                 0 7071                       0                     1             0.5                          05              141 421 CORYDALUS.CORNUTUS                                                                          2          .0,5                _0,7071__                     U                 .1                Q.5                          05            .141 421                     _                     . _ . _ .

FERRIS $1A SP. 2 21 5 28.9914 1 42 - 20.5 840 5 134.844 HIRUDIhEA__ 2..... 0,5 ._0.707t_ _ 0 _._1._ 0.5._, _. 0.5 .. 141 4 21._ . . _ _ _ ~ 6.5 84.5 141 421

)                                                                              HYOROP5vCHE SP.                                                                            2           6.5                 9 1924                       0                  13 o5                  o 7n?t                       n                     1             o5                           n8              1'1       '2' DR(QNECfiS_5P.                                                           _..___2__

PARAP0Y'au $P. 2 0.5 0.7071 0 1 C.5 0.5 141.421 PLEUROCERA (5YN. OxyTRE14) SP. 2 12.0 7.0711 7 17 5.0 50.0 58.926 STENACRON $P. 2 2.0 2 8284 0 4 2.0 80 141 421 Nelo tzf e

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PHIPPE REND MACRn8ENTHff FNUMFRATit!Ni tpsttre e14T na

       )                   ------------ - -------- -- ------------- g AR=7s                                                                                      RM 120,2                      M N e u _ n a b l ij,'.. c na g gg g t---- .---------- ---------------------------

Tax 0N ._. . . . _ _ fl NEAN _ . . STD . . M I N __. ..!! AX ._ _ S TD E R R _V A A _. _ _ C V _ _ . . . _ . . _. _ _ __ . .__ ._ 8A I AE S C HNA_ J ahAIA___ ..._._ _ r o.5 o.7nvi o i c.s n.s i n ,m CH}tuMATOP5vCHE SP. 2 3.0 1.4142 2 4 1.0 2.0 47.140

                                                                   . _CORYDALUS $P.                                                                        2              0,5                     0,7071.                        _0                   .1_                c5                     0       3_.            141 621__...                    .                    _ _ _ _ _ _ .

33.033 FERRI 55ta SP, 2 24.0 .12.7279 15 33 9.c 162.0 NETAERIhA SPs _ 2 . . _ -.1. 3. _.__ 0 . 7A71_ ___. _1 . _2 0.5.... .._.0.5. 67 160 - ____ 40.5 NYDROP5YCHE SP. - . . . 2 18.5 6.3640 14 23 4.5 34.400 LFPIDDPTgAA 2 __ Q.a 5 f'=7071 Q 1 0.5 0.5 14i.42: PLEUROCERA (5YN. OXYTREMA: SP. 2 0.5 0.7371 0 1 C.5 0.5 1=1.421 57EhACRON.5P, 6.5_ _ _ ).1355.___.. _t_. ._ 9 2. 5. _. 12.5_.._ St.393 _ __. _. _ STENONEMA SP. ._. . _ __ 2 _ _ 2.5 2 3.5355 0 5 _. 2.5 12.5 141 421 TuBIFICIDAE. 2 0 , 5 _ _ _._O n.7D 71__ _ _ .9_. . ___ ._1_ . ___C.s 3. _ . 0 : 5 .. ._ . 141 :3 Z 1.__ ___ . .._

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__ . _ , ___ P,tf]Pf1_3END MAC RDRENTHIC ENUMERAflDN5 - SP_E C I F S ' IST 17 I , .--------- ---- _- - - - ; ------------------- YEARm78 _ _ RMs120,2 M N o 12. . . H A B LT A T = C H A N B ( D R --------------- ---------------------------

  ,                                                           TAXON                                                                                           y             ttE AN.                   S TO . _. _M1!L . M AX. .                              STCERR.               _ V AR . - . CV                                     _ . _ _ _... _ _ _ . . . . . _ ,

ARGIA $P .._... a _ . _ . _...1 _.2el .._Da10111 0 1 c.5 h5 141.421 ASELLUS SP. 2 0.5 0.70711 0 C.5 CHEUMAT0p5YCHE SP. 1 0.5 141.421 2 6a5 4.94975. .3 10. 35 24.5 76 150 _ COR83CULA MANILENSIS 2 0.5 0.70711 0 1 C.5 05 161 621

              . __.                                 ._ . CORYDALU$ CORNUTUS                                                                                  2        _ De5                        0e70711_..               _0       . .._ . 1. _ _ . 0 5 CRICOTOPu$ $P.                                                                                .2                  05
                                                                                                                                                                                                                                                                                  ._ 0. 5                          141.421_

0.70711 0 ?. 05 0.5 141 421 MR.R[5}]A $p, ._1,,,, __, g_, 5 2 12132 HETAERiua SP.

                                                                                                                                            . _ ,                                                                               1       __4                   1 5_           .        43.)                           %A13 I                 1.5                 0.70711                      1               i              c.5                    0.5                            47 1*O HIRUDINEA                                                                                       2                0.5                  0.7v711                     0                               C.5 HYDROPSvCbE SP.                                                                                                10.5                   3.53553 1

0.5 _ 161.421

                                                                                                                                                                                                                                                            . 2.5 2                                                                 a             13                                    12 5
                                                            .ORCONECTE5 SP.

33 672

2 _ 1.5 2,12132 Q __ . 3 .1 5 4.5 .141.421, PARAPOYNu SP.

2 1.5 . 2 12132 _.0 3 1.5 4.5 141.421 PMME . ._ _ . , . __ _. 2 15 2.12132 1 4 1.5 4.5 Rbj53 PLEUROCERA (5YN. OXYTREMA)__ _ .SP. 2 29.5 4.94975 26 33 3.5 24 5 16.779 POLYCENTROPUS SP. 2 05 . o.70711_. _ .0._ 1 C.5 0,5 _. 141 421 . STENACRON SP. 2 2.5 3.53553 0 5 2.5 12.5 141 421 _. . ._.. . . _ _ STEN 0 NEMA SP. 2 4.0 _2.82843_. .2 6 2,0 8.0 70.711 . . Nm17 , _ , , , , , , ._, , , , _ , tx.t

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                                                                                                              . _.              . _ PHIPPE BEHQ.MACRDRENTHff ENUMERATIONS - %PFCIFK tIsf                                                                                                                                                                                                                                                       al

__t--------------- ----_-------------------- YEAR =T9 R M m 12 O_,2 M N a O_1_ ,_,14 A,(l l gl e C H 4 N H D R ,. - _--- __ .-----------------------------------

              ..                                                               . _ Tax 0N                                                                                        N          .MEAN                       . STD.                                   P.I N _              MAX . STDERR.                                            VAR                  _CV.______.._._.

_ . . _ . 13fLLUS.SP. ._ _. . 2 10 1 '1621 n 2 16 20 141 '21 CAMSARUS SP., 2 1.0 0.00000 1 1 0.0 a.0 0.000 CHEuMAT0 PSYCHE SP, 2 .OsS 0.70711 3 1 Ce5 0.5 141.421 _ __.__ . _ _ CHROMAGRION CONDITUM 2 0.5 0.70711 u 1 c.5 0.5 .141 421 CRANGONYX SP... 2_ _ _0.> .0.7071L _.. c. 1. C.S 0.5 _ _141.421 _._. ___ . . . EPHEMERELLA SP. 2 0.5 0.70711 C 1 05 U.5 141 421

                                                                                  . HYDRQP5YCHE SP.                                                                     . . Z.                       14Q.___J14a0000                                               J .._. . _ .1                     _        Q.C_               .     .__Q.o                          a nno LIRCEuS SP.                                                                                2                  0.5                   0.70711                                   C                        1                C.5                              0.5                 141 421 ORCONECTE5 SP,                                                                            2                  .1,0                   1,41421_ ___ _ _                                                   2                1.0                              2.0              .1't.421                        .                        ._                               _ _

3.0 PHYSA SP. 2 3.0 4.24264 o 6 18.0 141.421

                                                                                  . PLEUROCERA (5YN. OXYTREMA3 SP.                                                               2                10.5                    3.12132._                                 9                     12                  1.5                              4.5                   20.203                       .. _ . _ . . _ _ _ _ . _ _ _ _
                                                                                      $TEHONEMA SP.                                                                              2                  0.5                 _0.70711                                    0_                       1                C.S                              05               . l'1 421 No12
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                                                                                                                        . 2H1221.AEND MACRoaENTHic FNUMFRATIONC . tppffFt iIt?                                                                                                                                                               ._

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                          ------------------------------------------ YEARe79.__RM.e120,2                                                                                                    HNs02           HA.81TAToCHANBEDR_-------------..-- -----------                                                                                     t-----------                        -..
                   .                                    ,            TAXON                                                                    _                    N. HEAN.._ ._ .5TD                   _ _ . " I *L                    MAX                 .5TDERR . . .v AR ..                                C V_.         . . . ..                         _ _ _ _ . _ _ _ _ _ . _ .

_ __ E UKlE F_f_E R I E L LA __5 P . _ _ _ . . . .L 2.o 2.s2ss3 o 4 2.c a.o v41.ami FIR RIS $ fi. $P. 2 0.5 0.70711 u 1 0.5 0.5 141.421

                            .,_~                                     HETAERINA SP.                                                                            _2             1.0 ._1,41421                               o                       2                   1,0        .             .2 0 ___.141.421                                       .._                     _ _ _ .

HYDROPSYCHE SP. 2 5.5 2 12132 4 7 15 4.5 38.569

              '____....                                              LIRCEU5 SP.                                                                     ..         .2       .0.5...___.0           70711__._ u_ _ __.1.                                                 c.5._ __ _0.5... 141.421

_. __ ORCONGCTES SP. 2 2.0 1.41421 1 3 1.0 20 70.711 DRTHOC.L.ADIUS SP, . ___ _3 , . 2.0 2 d2843 0_ 4 2.0 8.0 14L.421 PHYSA SP. 2 1.0 1 41421 C 2 1.C 2.0 141.421 __ PLEUROCERA (5YN. OxvTRE9Al SP. 2 10 0_ 7.07107_ 5 .._ . 15. . 5. C. 50 0. .10.711 . _ _ . _ _ _ SIMULIUM SP. 2 2.0 2 82843 0 4 20 8.0 141 421 STENONEMA SP. 2 0.5 0.70711._ C 1 __0,5 0.5_ 141 421 T!PULA SP. 2 8 . 0, 2.82843 6 to 2.c 60 15.355

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PHIPPE REND MACROSENTHtt ENUMERATIONS e SPEttES LIiI 11

  )                                                                                                                                                                                yum y,____ptn.129.2_ _ttn.03 NAs1 TAI.GHANSEDR -------------------                                                                            ---------------------
               ..                                                           tax 0N                                                                                                      ._           __N        .NEAN                     __              STD _ _Mitf. . MAL _ . STDERR                                                        _ . VAR                _...CV.            __..... _ __                                  .____

ASEL11d_[P. __ 2 0.5 0.7071 0 1 c.5 03 1A1 421 CAMBARUS SP.. 2 0.5 0.7071 0 1 0.5 0.5 141.421

                   . . _                                                   CHEUHATOP5YCHE SP.                                                                                                             2        .2.0                             2.8284                          0                  4.                   2.0                      0.0                   . 141.421._                          _ .... . ._

CONCHAPELOPIS SP. 2 0.5 0.7071 0 1 0.5 0.5 141.421 _ _ _.. _ . _. _ . CDRDIGULA..MANILENSIS __ .. .._. __2._.._ 0.5___. 0.7071___ O_ .__ 1 ._ C . 5._ . 0.5 _ 141.421 CORYDALus CORNUTUS 2 0.5 0.7071 0 1 C.5 0.5 141.421 _ _ CA&NGONYM.3Pa.. . . _ _ _ . . . . . . _ . 2 L5 n.7n71 ( 1 e.5 n.3 141. 0 1 EPHEMEpELLA SP. 2 1.5 2.1213 0 3 1.5 4.5 141.421

                     .                  .                                  HVOROP5VCHE.SP.                                                                                                                2          7,0_                           1.4142                          6                  8                    1,c                      2.0..__J0:203 NAIDIDAE                                                                                                                      2           0.5                            0.7071                          0                  1                    0.5                   ..0.5                       141.421 ORCONECTES SP.                                                                                                                2     . 1.5                             .0.7071                            1.                 2                    0.5                     0.5                         47.140.._                    .._              _ _ _ . . ..__

PHYSA SP. 2 2.5 3.5355 0 5 2.5 .12.5 141.421

          .                                                            . PL{llR.DC LRA_ LEY.N 9MI.RE n). E - . 2                                                                                                 18.5                          12.0208                            13                 27                     8.5                 144.5                           66.977 f!PULA ABDOMINALIS                                                                                                            2           3.0                            1.4142                          2                  4                    1.0                     20                          47 140
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                   ..... .. _.......... -............ __---- YEAR.=79                                                                                        RM=120.2                  .MN=04     HABITAToCHANDEDR -------------------------------------------

TAXON N ?1EAN . _. 5 70

   ,                                                                                                                                                                                                   M I r.   . MAL __ STCERA                     _            VAR. _ _ _ _ _. C V                                            ___
                                                   ._ _ e B L 4 8 D M.Yl A . lf_a. . _                                                                    2   __ L 5                       a.7n7            s               a          n.s                       g.s
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AC ADNEUTL I A SP. 0.5 0.707 0 1 0.5 0.5 141 421 AGRAYLEA St. 2 34.5 14 849 24 45 1C.5 220,5 ANTDCHA SP. 43 041 2 0.5 0.707 0 1 C.5 0.5 141 421 i

                 .             _                        .ASELLUS.5P.                                .                                                 _2        . 2.0 _              __0.000       .

2 _ __ . . 2 . . _ __ _ Q . 0 _. . .0.0 ______0 000_. A1 HE R IX VARIEGATA 2 0.5 0.707 0 8AETIS SP. 1 0.5 0.5 141 421

           . _._ , _ _ _ . . .                               ~                                                                                           2  ..b5                           2.121       _ _.g .         __J_ _          1.5                       4.5                  141 321

__.C'HEITMitD'P 5vC HE $P . 2 2.5 2.121 1 4 15 4.5 84.853 CHIRONOMIDAE 2 6.5 _7.778 1. 5.5 50,.5 _12 119.664 CRICOTOPUS SP. 2 160 0 100.409 99 231 71.C 10082 0 62 756 CURA FOREMANII 2 8.0 1 414 7 9 10 DUBIRAPHIA SP. 0.5 _ 2,0 17 678 2 0.107 0 1 05 0.5 141 421 DUG E_5_1 A_ _UgR I N 4 _, ,, ,_,, . _ , , _2 4.0 0.000 4 4 _ ___'INALLAGMA SP. c.0 0.c 0 000 2 15 2 121 0 3 15 4.5 141 421 EPHEMERELLA SP. 2 1,5 0,707._. 1. 2 C.5 0.5 47 140. ERP08DELLIDAE 2 05 0.707 0 1 C.5 0.5 ._ 141 421 EUKIEFFERIELLA SP. 2 9.0 2,828 7 _ 11. _ _ . 2 0_. . _ . 8 0. _ 31 427 _ FERRIS $IA SP. 2 8.0 4.243 5 11 30 18.c 53 033 _ _ _ _ _ _ _ _MELDRDELLA_3P_a _ 2 _ n,i o.7n7 e cs n.s ___.._7_..._

                                                                                                                   .. . _ - .                                                                                              i                                                         sat asi                                              u HETAERINA $P.                                                                                   2       0.5                     0.707            0                1          C.5                       0.5                 141 421                                              W HYDROPSYCHE SP.                                                                                2      22.0                      7.071          17             27_            5,0                     50,c                     32 141.

35CHNURA SP. 2 2.5 2 121 1 4 15 4.5 84.853 LEPIDDPTERA 5 .0.707 .. C.5 LIRCEUS SP. 2~ 0:5

                                                                                                                                                                             .                           .o                1                                    0.5                341 421 3                       0.707            3 _                                                                                                            _ _ _ _           . _ . . _ _ , _

2 * (UMBRICULjQA L 0.5 _ 0.5 20.203 __ 2 35 3.536 1 6 2.5 __11 ,5 101,Q15 M ATHNYCHU$ GL A8'R ATill 2 6Y. 7.778 3 14 5.5 60.5 91 508 MUSCIDAE 2 0.5 0.707 0 1 C.5 0.5 141 421 NAIDIDAE 2 38.5 2.121 37 NEMATA 40 1.5 4.5 5.510 2 10 1.414 0 2 1. C . 2.0 141.421 s NEMOURA SP. 2 1.5 0.707 1 2 c.5 0.5 47 140 NEUR E CMP 515__5 P . , _2._. __Q.5 0.707 O _ ___.1_ C . 5 _ __ 0,5 13b321 DitT6NE C TE S S P. 2 2.0 1.414 1 3 10 2.0 70.711 ORTHOCLADIUS SP. 2 37.0 43.841 6 no 31 0 1922.0 118.488 DULIMNIUS SP. 2 10 1.414 C 2 1.C 2.0 141 421 PERLESTA PLACIDA 2 1.0 0.000 1 1 C.0 0.0 0.000 PHYSA SP. 2 0.5 0.707 0 1 0.5 0.5 141 421 _P_LE_qR0(E M ($y_N, OXYTREMA) $ P a_ . _{__ _4. 5 2.121 3 6 1. )_,,_ ___, _ 4.5 47 140 i POLYPEDILuH SP. 2 54.0 38.184 27 81 27.C 1458.0 70.711 PSEUDOLIMNDPHILA SP, 2 1.0 1.414 1.C C 2 2.0 141.421 RHf07ANYTAR$US SP. 2 1.5 0.707 1 2 05 U.S 47 140 SIMULIUM VITTATUM 2 40.0 15.556 29 51 11.C 242.0 38.891 8 STENACRON SP. 2 10 1.414 0 2 1.C 2.0 141 421 STENELMI5 SP, ~~ ~ '~ ~ 2 10 1.414 C- 2 10 ~~ ~ ~ _J ,0 141.421 _. " $fENDNEWA'$P.'-~ ~1 1.0 0.000 1 1 Ce0 0.0 0.000 TuSIFICIDAE 2 1.0 0.000 00 1 1 0.0 , 0 000.___.__ ..__. , . . _ _ .P=AE_ _ . _ _ . . . e

                       )                                                                                          _ __. ...                                                            . . _ _ . _ . . _ _ _                               _ _ _ _ _                 . _ _                                     _ _ _ _ . . .                                                                                        ___

pd.jpP1 SEND MACRO 8ENYHft FNtiMERATInut . sprCIFs ,tst _ u I _ ------------------------------------------ . YEAR =79 RM=120g2 MN=05 HAS{TATaCHAN8EDR -------------------------------------------

                                       .                                        .TAMON.                                                                                                      .H ._ MEAH . . _ __ S TD __ HIL.                                              MAX.                       STCERR                                . VAR -_. ._IV      ...            __ _ __

AR148E5PYIA 1F_. .... _ . 2 o.5 _ 11,767i o i e . i _ __ . n.5 14n.42i AGRAYLEA SP. 2 4.0 1 4142 3 5 10 20 35.355 ARGIA SP.. 1 4142 _. __ O_.. 2. 1.C 20 .141.421 _ _ . _ _ 8AETIS SP. 2 2 _ ._ 9.5 . 1:0. _ _12 0208 1 18 8.5 144.5 126.535

                                - . .      _ _ . . _                 . _ _ . . _ CALOPTERYx $P..                                                                .                            .2._.           _0         5._ . _0 707 L __                        0 _        .._1-_..                         0 . 5__ .                .        0.5..__.1414421 _. .

CHEUMATOP5YCHE SP. 2 0.5 0.7071 0 1 0.5 0.5 141.421

                                            ._.                          .         CM LRQN9.M_InAE .                               . .             _          _. - _ Z ._ _ _ 25                                                      1.5155                     o              5                            2.5                    .       11. 5      141.42i CORY0ALUS CORNUTUS                                                                                         2                2.0                    2.8284                     0              4                            2.c                               8.0     141.421 CRANGONYx Sp.                                                                                              2          _.0.5                        0.7071___ _                y _. . 1 . ._                               C5                              .0.5      141.421._..               .           ___ _ . . _ _ _ _ _

CRICOTOPuS SP. 2 11.0 ..15.5563 0 22 11.0 242.0 141.421 CURA FOREPANI! 2 _ _ 9,5 . _ 9:1924 3 16 6,5 84.5 96.762. . _ _ _ _ _ . DUGE5IA TIGRINA 2 6.5 6.3640 2 11 4.5 40.5 97.907 __ _fN&LLA$gA_$p. .. .,,,,,,,__ ,

                                                                                                                                                                .,..,__2__                                     i.5                    2.1213                     c            .3.              _

1,5 4.5 141.est EUKIEFFERIELLA SP. 2 23.0 32.5269 0 46 23 0 .1058.0 141.421 HETAERINA SP. 2 1,0 1._. 1 C.c 0.0 0,000 . _ , HYDROPSYCHE SP. 2 32.5 0.0000 _. . 11 30.4056 54 21 5 924.5 93.556 _ .. LIRCEUS SP, .2 0.5 0.7071 .o 1 c.5 . 0.5 141.421._.

                                                                                                                                                                                                                                                                                                                                                                                . . . _ _ .be _

NAIDIDAE 2 7.5 _10.6066 C _ 15 7.5 .112.5 141 421 ORCONECIEJ SP. 2 10 1 4142 0 2 10 2.0 141.421 . 's

                                                             ~ ~~ 7 HTU TA PLICIDA                                                                                                            2               0.5                     0.7071                     u              1                            C.5                               0.5     141 421

PLEUROCERA (SYN. OXYTREPA) SP. 2 29.0 33.94}1. _ 5 53 24 0 1152.0 117.338 POLYPEDILUM SP. 2 26.0 33.9411 2 50 24 0 1152.0 130.543 RHEDTANYTARSUS SP, 2 15,0 18,3848 . _2 28 13.C 338,0 122.565 , . _ _ ,

RHYACDPHILA SP. 2 1.5 2.1213 o 3 1.5 4.5 141.421 SIMULIUM VITTATUM 2 13.0 12.7279

22 9.c 162.0 97.907

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STENACR0fi SP. 2 13.0 15.5563 2 24 11 0 242 0 119.664 STENONEMA SP. 2 6.0 2 8284

8 20 80 47.140 -

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                                                     - _ . _ _ .-. -. ..--                                                                                                                                       LIST PHIPPS BEND MACRQ8ENTHIC ENUMERAflD E SPECIES                                                                                                               -
                                                                                                                                        .pt9 :1202_             _M.N = 06.        HABITAT =CHANSEDA_ ._--------- ------ -- --- - - ------~~                                                                                        --

VAR ._. . CV . . .. __ YEAR =79

             . ------------- - -- -------- ------------ .                                                                           N ..       P.EAN

_ ,$}D__ MIN. . max.. _SIDERR. 141 421 tax 0N e 1 0.5 05 O.7071 3.0 18 0 141 421 0 6 0.000 . _.._ _ .. 0y E R IA_$ g , ,_, , , _ _ . __ _ ___ .. _l2 __ _ _3.0 Q a_5_ 4.2426 2_ 00 . 0,0 . ___ __ __ _ _ {'HIRONOMIDAE 2,0 _0.0000 2. 0.5 05 141.621 2 CORYDALUS CORNUTUS 2 0.5 0.7071 __ 0 1 1._ ____.0 5. __ __0 5. _141 411 _._. CRICOTOPUS' SP. ,0,5 _ _0 707L...._ 4 . 3.0 18.0 141.421

2 0 .6 4 M in CURA FOREMANII 2 3.0 4.2426 4~ 10 2a 141,421 DUGE5IA TIGRINA _,,_ . 1 ._ _ _, ,J . O 1.4142_ _ _ / 1 0.5 05 0.7071 0 72 0 141 421 _ . . . . _ . . . . _ _ - _ _ _ . _ _ _ . EUK1EFfgRIEL(A $P. ,_ 2 0.5 c . __ . 12 6.0_ 141.421 HETAEAINA SP. 2 6.0 e.4853 1 0.5 0.5 _ 0.7071 0 242 0 141,421 _ HYDROP5vCHE SP. 2 0.5 0 .22 11 0 15.713 1 URCONECTES SP. 2 11,0 15,5563 5 0.5 05 0.7071 4 20 __141.421 PLEUROCERA (syn, OxYTREgA3 Sp, 2 4.5 o -Z_ i.0 - POLYPEDILUM $P. 1.0 1.4142 8 STENDNEMn.,$ h _ .. . _ . ,_ 2 . Nm13 ..,_ . _ _ _ e M _ US

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                                                                                                                                                     . YEAR =79                  an.120,2_                          nn.07               H A s tn i n g H A N a g o R -------------- _ - ------------------------

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                    -                                      . ._                   . . .TAEDN                                                                    N              HEML_ _STD                                             M 17t .___ N A1 ._STDERR                                             _ VAR._                      ._CV______..__.                                                                          __

l _ BALI 15 lfa. . ._ _Z_ 1O n nonon 1 1 oe nA n.an9 ( BOYERIA SP. 2 0.5 0 70711 0 1 0.5 0.5 141.421

           ._                                       .           . __. ..                     CRICO.TOPUS. SP.                        .

2 0. 5_ . 0 7QT1 L .. ..A . . 1. _ 0.5 . o.3 __ 191 421__._. . . .. ._ . CURA FOREMAN!! 2 1.0 1.41421 0 2 1.C 2.0 141.421 _ __ __. QuBIPAPHIA 5P. _ ._ 2 0.5 _ _.o.70711 ____o_._ .1..____ o.5 ____ o.5__.. 141.A21_____ tRP080ELLIDAE 2 0.5 0.70711 0 1 0.5 0.5 141 421 Ey31EfF_E_RJE y $2,.._ 3._ 1.0 0.00000 1 1 0.0 0.0 0.com

                                                                                           .DLD5$1PHONi mAE                                                   _2               1.0                    0 00000                           1                       1                       0.0                   0.0                     0.004 HYoROPSYCHE SP.                                             _ _2_                 4.5.__                 2,12132.__ . 3                                            6                       g.5      _            4.5_          ._4L146 LIhCEUS SP.                                                        2            ..0.5                    0.70711                           0                       1                 ...0.5                      0.5               141 421 MACRONYCHUS GLA8RATUS                                             .2              o.5.__. _o,7071L _ o                                                             $_..                 . o . 5_                 o,5               141 421                    . _ _ . . _                      . ._

DRCbhECTES SP. 2 1.0 0 00000 1 1 0.0 c.0 c. coo P O L Y P E Q lW!1 11._ ._ . _ _1_. . 2.0 ft.gi421 1 3 1.a 2d TD 711 STENELHIS SP. 2 0.5 0.70711 0 1 0.5 0.5 141 421 STENONEMA SP. 2 0,5 o,707)g ._g __1. _. 0. 5_ .o.5 141 421 . . _... _ TRICORYTH00E5 SP. 2 c.5 _ _0.70711 o 1 0.5 0.5 141.421 Nalb t.d

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                                                                                                                          ._ _fli1P1i_REHD_ MAG.RDBihTHIC ENUMERATIONS                                                                             QECIFS             t_ I _5 7                                                                                                                 ta T                . . _ _ - . _

_ _ .............................- YEARm79 RN=120.2. HNsOS f A B I T A T = C H A N 8 E D R . ------------ - --- . ._ . _ _- ----------- --- .~.__._ TAXON N MEAN . .570 NR .NAX STOERR VAR . . _ CV_..._._.________ ANTQCHA.1P. _. . __._____L 02 _ __Q.7071 9_ _ _ 1 __.c . 5 n.5 la1.421 BAETIS SP. 2 44 0 41 0122 lb 73 29.0 1682 0 93.210 80VERIA SP. 2. 1.5 2.1213. O 3 1.5. 4.5 141.421___ ._. CHIRONOMIDAE 2 3.5 2 1213 2 5 1.5 4.5 60.609 __CRICOTOPUS SP. _2.. 2.5 .._ .2 1213. . .1 . _.4_ .._. 1 5. *e5 84.853 . _ .-_ _ __~. (URA FOREMANII 2 1.0 0.0000 1 1 c.c 0.0 0.000

                               .__.....__Q.UGj $ J A _TIGR LN A . ..                                                                 -                   _2 _ ___. _.025                                   o In.71_.                        o          1                _rd_                         a,L_ _.               141.4*i EUKIEFFERIELLA SP.                                                                                    2                  6.5                       7.7782                           1        12                    5.5                    60 5                     119.664 FERRIS $ta $P.                                                                                        2                  9.5 .                     4.9497                           o        13                    3.5                    24.5                       53 103 GLOSSIPHONI!DAE                                                                                       2                  0.5                       0.7071                           0          1                   C.5                       05                    141.421 HYOROPSYCwE SP.                                                                              _ 2                       15.5                        2 1213                        14          17                    15                        4.5                     13.686                       _                    _ __

HYDROPTILA SP. 2 2eo 1 4142 1 3 1.0 2.0 70.711 ISCHNyRA,$P, , ,, , , , , , , , , 3_,, __ h 5 0.7071 0 1 __ h1 0:1. 141 421 MU$CIDAE 2 05 0 7071 0 1 C.5 05 141 421 NIGRONIA SP. 2 0,5 o.7071 0 1 c.5 05 _ _ _ . .. ._ _._ DRCONECTES SP. 2 0.5 0.7071 D 1 c.5 05 _ 141 141.421421_ Pl,EUROCERA (SYN. Dx Y T R E,M A ) $P. . 2.. 9.0 _12.7279 4 16 9.0 162.0 141.421. ..._ _ POLYPEDILUM SP. 2 80 2 8284 6 to 2.C 8.C 35.355 08___ RMYAC_0_Pjjlu 1 _.,_,, __ _, 2 0.5 0.7071 o 1 0.5 OJ 141.421 A STMULIUM VITTATUM 2 10 1 4142 o 2 1.C 20 141.421 N STENACRON SP. .7 1.5 0.7071 1 2 Ce5 0.5 47 140. . ._ STENONEMA SP. 2 6.5 2.1213 5 5 1.5 4.5 32.636

                                      -                 TRICORYTHODES SP.                                                                                     2                  8.5                       0.7071                          e           9                  C.5                       05                          8.319 0.5
                                                                                                                                                            '2 fUelFICIDAE e

O.7071 'O 1 C.5 0.5 141.4f1 N=24 i p 6

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l . PHIPPS SEND MACROSENTHIC ENUMERATIONS . SpfCIES :IST 19

    ,             ...._.____..___..._.......                                                                              _............._yEARe79                                                                   RMsJ 29:2                MN.g9              HABITATmCHAN8EDR --... .__......... .................. ....

T A X QN. _ _ M ME AtL_ _ _ . .. . Mp__ __31L_ . M A X _. _$logRR_____y&R __Cy __ ANIDCHA SP. _. 2 1.o 1.4142 0 2 1.0 2.o 141.421 BAETIS SP. 2 3.5 4.9497 0 7 3.5 24.5 141 421 _ _ . _ . . BASIAESCHNA JANATA._ . _ ..3 _ . _ . . Q a t _ ... 0, 7 07 L. . _ ..__0_ _ _ _1 _ _ _._ 0 , 5 .. Ds3____lil,921__ ___ __

       -                                      _. . . . _ -.. CHIRONOMIDAE                                                                                                                                      2           3.0                1.4142                     2                    4              1.0                   2.0                     47.140

__ . _ CQRYDALUS.CDRNUTU5.__. __ . .__ __.2_. _ 0 5 _ __0.7071 _0 _...__1._. __0.5 _0.5 111.421._ _ ____ CURA FOREMANil 2 1.5 2 1213 0 3 1.5 4.5 141 421 _ DUE13JA.IIGPl.NA .. ._ 2 4.o 2.amas 2 6 2.o a.o vn.?ti __ _ . _~IPHEMERELLA SP . 2 0.5 0.7071 0 1 0.5 0.5 141.421 EuK!EFFERIEt,(A SP, __.2_.. _ . _7. 5___ .} Q ,6 0 6 6 . _ _ _Q_. __ . 15 _I. 5_ . _ u 2 5 _ 141. 4 3 L._ . FERRI 55IA SP. 2 0.5 0.7071 0 1 0.5 0.5 141.421 HYOROP5YCHE.5P. 2_ , 1. 0.. . . .0.0000___._1__. _ 1.__ . 0. 0 . ._ . .0.0- 0.000 .. 0.5 0.5 LEP100PTERA 2 0.7071 0 1 05 141.421

    .                                                               LIRCEy5._1h_ __._ ..__.._                                                                                                                  2           1.5                2.1213                     0                    3              1.5                   4.5                141.421 MACRONyCHUS GLABRATUS                                                                                                                      2           10                 1.4142                     0                    2              1.0                   2.0                 141 421
                                                                  . _Mu S C 10 A f                                                                                                                             2.          05_                0.7071___. _0__.                             _1.         _ . _ 0 . 3_..       ._. 0 3_._ 141 421.                                     _           . . _ . _

4 2426 6 3.0 18.0 141.421 htGRONIA $P. 2 3.0 0

                                                                  .ORCONECTES SP.                                                                                                                              2           10                 1 4142                     0                    2              1 0._           __2,0.                    141 421 _                         . . _ . _ _ . .

PEEUROCERA (5YN. OxyTREMA)..SP. 2 33,.0 _ 24.0416 16 50 _17 .0 570.0 72.e53 en POLyPEn1 M ._jf,..,, , 2 3.0 4.2426 0 6 3.0 1a.0 141.421 8 0.5 PSEUDOCLDEON SP. 2 0.5 0.7071 0 1 0.5 141.421 55 SIALIS SP. 2 ._1_. 0_ _ __1 4542 0 2 . _ .l .0 .___2 0 _ _%4).421_ _. __ 51MuLIun VITTATUM 2 2.0 1.4142 1 3 1.0 20 70.711

     .                                                              5TENELMIS SP,                                                                                                                              2 __ _ _1,0_ .               _1,4142                      0                    2              1,0_ _ _              2,0.._             141 421__ _                                     _

STENONEMA SP. 2 2.5 0.7071 2 3 0.5 05 28 284 _.TR.ICORyt!@pj5__5P,_ P __,_ _ _ 2 18.0 15.5563 7 29 11.0 242.0 06.424 N=25 . _ . _ . _ _ .

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__ _ _ _ . . . _ _ _ . . _ . . . . _ _ PRIP.P.S_ REND MACROBD{JRIC ENUMER AIlDM5 - SPECIFS_L137 la

                 -------- -.___...__.._.__...___..-------- YEAR =78 RPi=124.3                 . m=10_. NA61 TAT =CHAN8EDR.------                                                    ----_---------.------?                                          .------ _-.--- ._,

TAXON .N "EAN. __ _570. 919. max _.STOERR .YAR_ . _ C V. . . .___ _ _ _ _ _ _ _._ __ _____ _ ..__C MP E LDat D.ECJ S U M _ . _.._ . . _. _. .__2 .. ni a na LDH _- o .1 L i_ _ n.5 1'i __ CORBICULA MANILENSIS 2 0.5 0.7071 0 1 0.5 05 141.421 LINNODRILUS SP. 2 on5 _o.7071 0 1 C.5 0.5. . .141.421 .- DACONECTES SP. 2 15 0.7071 1 2 C.5 05 47.146

                                         . _. PLEUROCERA.(SYN,                                             OXYTREMA)..SP. __ 2 _ .321.0                  2              5._.._37                 4767._                     6. _ 5 9. _                           26.5.          1404.5                     .115 313                                      _ .__ __

STENACRCN SP. 1.4142 0 2 1.c 20 141.421 N=6 e _a. .w eg e _ _- g m___. _h _ _ . _- _ .,w

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         ._ _                                 _ _                                  TARDN. .                                                                                                    N. . .f E AN _                                 _. . STD..                                  MIM_ . MAX                                     STDERP                _. . V A R -. . . _. _ . C it _                          . . - - .

ARGIA sp. 2 4.5 1.stss > 7 2.9 is.s Ta.sa7 COAsICULA MANILENSIS 2 3.0 4.2426 0 6 3.0 18.0 141.421 DUGESIA TjGRINA. 2 Q.5 .0.7071 . O. . 1 Ce5 De5 141.421 _ --. . _ _ . _ . . [ ENALLAGMA SP. 2 2.5 2.1213 1 4 1.5 4.5 84.e53 _ _ _ _ _ _ _ _ _ _ _ _ . _ . . FERB15511.$P. .__. _ _ _ . _ _ _ 2_ .._0.5__.._0.7071.__ o .. .L. .0.5 _ 0.5 141.421 _-__. f HIRUDINEA 2 1.5 0.7071 1 2 C.5 0.5 47.140 _ _ _ _ . . _ . . ORCONECII.S.SP3. _ _ _ . .. __ 2_ __ 0.5 0.7071 ri 1_ c.5 .Q d_ . 141.421 PHY34 SP. 2 1.0 0.0000 1 1 C.0 0.0 0.000 _ .. . . .. . . _PLEUROCERA (5YN._DXYTREMA) SP. 2 16.0 .12.7279... 7 25 90 162 0. .79.550._ .. . .. _ _ _ _ _ _ SPHAERIUM SP. 2 0.5 0.7071 u 1 c.5 0.5 141.421 STENACRON SP, 2 9,5 9:1924_. . 3_ . 16 _ 6,5 84e3 96.762__ _ . _ _. 1.4142 35.355 7UBIFICIDAE 2 4.0 3 5 1.0 2.0 No12 a u O w..we m w . . .ga_

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                ..--- .----------- ------------------------- YEARS 78                                                                                              .RMa124.3...hN=12 _.HA83 TAT =CHANSE08L --------------                                                                               r-----            .-- ------------.--- .- _._.

TANDN - N ff E SN . STD .- MIN MAX STDERR VAR CV -_ . . - . . . - - - - . . . . .

                              . . _ . .                         AGRAYLEA 5P.s.                                               . ._          _ _ _. . 2                         Q s ) ,.             C.70111__                           D_-_.        1_              0:1                    . . 031          141.421 ARGIA SP.                                                                                     2               0.5                  0 70711                             0             1              c.5                             05      141 421

_. ASELLUS SP. 2 0.5 0.70711 0 1 0,5 0.5 141.421 . ._ CHEUMATOPSYCHE SP. 2 0.5 0.70711 0 1 C.5 0.5 141 421 __ . COR81CULA MANILENSIS 2 0.5 _o.70711 - 0 1 C.5 c.5 141.421 . _ _ . _ . _ _ C#anGONyz SP. 2 05 0.70711 0 1 05 c.5 141 421

          . . . . ._                                           EPITNECA PRINCEP5                                                         ...____L._.                          Q s 2..              0.76711                           .3             1. ._ _ Li_ __ .. n . 5                                 141.421 FERR1551a SP.                                                                                  2               10                   1.=1421                            0             2               1.0                             2.0     141.421 HIRUDINEA                                                                                      2               0.5                  0.70711                            0             1              0.5                             0.5      14}.42)                                  , ._ _ . . _

ORCONECTES SP. 2 15 0.70713 1 2 c.5 0.5 47 140 PHYSA SP. 2 .. 20 .0 00000 - 2 2 Cec .00 0 000 PLEUROCERA ($fN, OXYTREMA) .. SP. 2 33 5 4.94975 30 37 3.5 24.5 .14.775 P DM C E N T R OJ U S. S P.e . ._. 2 22 1 ._.3 53553 0 __ J___ _._.L 5 12 d.__ __131 4 21 I ITENACRON SP. _ 2 20 1 41421 1 3 10 20 o.711 e w r y 4

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                                                                                                                                ..__ PHIPP1 BEND MACRDRENTHIC ENyt1ERATIONs e SPscits t157                                                                                                                       _                                                                                                    Q_
                )               .................... ..................... YEAR =79                                                                                                  RM.124,3                        MN.02                     H A 8. ! T A L= C tf A N 8 6 0 R _ - .------- .------- ----------------------~_
                             . _ _ .                  _                         _ TAXON.                                                                                    _N _              M E A_N _.                         .3T0 _                  .M i ti_ _         .M A 4           STDERR_                        V A R .. .                 Cy       _ . _ .             _ _ _ . , . . _ . , _ _ _ _ _ _ _
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_ARGIA $P u _..._ _ _, 2 1.0 1.4142 0 2 1.0 2.0 141.421 ASELLUS SP. __ 2 1.0 0.0000 1 1 0.0 0.0 0.000 I __. CAMBARUS SP.. 2 0 5. _. 0.7071_ 0 _ . 1. D.5 05 . _141 421 _ _ _ _ CAMPELOMA DECISUM 2 0.5 0.7071 0 1 0.5 05 141.421 _ __. ___ . . CHEUMATOP5YCHE SP. 2_ 0:5_..__0.7071.___.Q. L._ 0. 5_ _ .0.5. ._141.421.___ _ _ _ _ . _ _ _ _ _ _ CORs!CULA MANILENSIS 2 0.5 0.7071 c 1 C.5 05 141 421 _ _ . . - ..._. __ __ Cit AN GQN Y x S P . .. 2 1.0 1 4192 L Z _ -._.1d 2d 141.421 DECAPODA 2 1.0 1.4142 o 2 1.0 20 141.421 FERRISSIA SP. 2 _2.0____2,0204 0

2.0 0,0 . _1_41.421 _____. . _ . _ _ . . _ _ _ _ _ _ _ _

                                                                              .HELISOMA TRIVCLIS                                                                               2                 0.5                    0.7071                              0                    1                0.5                       09                   141 421 LYMNAEA SP.                                                                                  2             _1. 0. .                   1.4142                            _0 .                   2                1.0                  . 2.0                     141.421                     _.                         . _ . . _ _ _.

NEURECLIPS!$ SP. 2 0.5 0.7071 0 1 0.5 05 141.421 Pl[MDM P A ($YN.,0XIIRE5 Q $f_. 2 11.5 16.2635 0 13 11.5 _ . .264.5 141.421 TIPULA SP. 2 05 0.7071 0 1 0.5 0.5 141.421 N.14 4

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                             . . _ _ _ . .                                       _ ___ _74 MON . _ .                                                           . _ _ . _ _ _ . , . n ..                                  NE AN_ ____S TD_ __ _ .MI D                                                  _ftaX                 _S TEER P . ._ VAR . __ ____I V._                                                   . _ _ _                                              __

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I OTOPUS SP. 2 2.5 2 12132 1 4 1.5 4.5 A4.853 DICROTENDIPE5 SP, _. _ 2 0,5. __. _D a 7 0711_ . 0 1 _ p . 5 ._ 0. L _ .1+ 1. 4 21 _ . ._ .__ _ ,_ EUKIEFFERIELLA SP. 2 1.0 1.41421 0 2 1.0 2.0 141 421 _ _ . _ _ _ _ _ . _ _ _ . .JERRIS$1A $P.__.__ _ ._ 2 _.0.5___._D.10711 Q . . ._ _ _1_ _ _ ._ _ 0 . 5 0.5 141.621_. HYOR0p5ychE SP. 2 1.0 1.41421 _0 2 1.0 2.0 141 421

                                                                                                 ^YMNAgA SP                                                                                              2               0.5                          0.70711                         0                                          0.5                                               141.421 g.._..                                          _                    -

2 15 2.12132 0 1 3 1.5 c.1 4.5 141.421

                                  , , , . .                        ,          ,                  PLEUROCERA (5YN. Oxv7REMA) SP.                                                                          2_              15_                      _0.7071L._ __1..____ 3. .- _b5                                                                     .__0. 5 _    .

47,140. TANYTARSUS SP. 2 , 0.5 0.70711 0 1 0.5 0.5 141 421 _ +'

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iPECIES tIsl_ *a f, ___P.!il P P1 BEND MACRDGENTHIC ENUMERAfibNS I _.---------------_---------------------_ YEAR =79 .RM=124,3 _MN.Q4 N A 8 ] T A T = G H A N S E D R ----------------- - _ --------- .-----------

                                ,         . .       .                TAXON              __                                                                     .N             MEAN                     STD._ M11._ . MAR                                 STDERR.            VAR        . _ _ _ CV _ _                        _ . _ _ _ _ _ _

48(AA15PYIA SPg _ _ _ 2 7.0 2.8284 5 9 2.6 s.o 40.406 AGRAYLEA SP. 2 60.0 4.2426 65 71 3.0 16.0 6 239 I -__ _.___ ___ _ __ARGIA SP.. . 2 15. 2.1213 ._ _.0 3 . 1. 5 . 4.5 141 421 . -___._ ASELLUS SP. 2 1.5 2 1213 0 3 1.5 4.5 141.421 BEROSUS SP... 2 . Q L _._0. 70 7 L ._ _ 2_ _ L _ ._ 0. 5 ___ . 0.5 _ . 141 4 2 L _ _ __ CHEUMATCPSVCHE SP.__ 2 0.5 0.7071 0 1 0.5 0.5 141.421 _ _- CHIRDhDflD.AE__. _ . . . . _ _ _ _ _2 1.0 0.00n0 1 1 n.o n.n o.nno CRICOTODUS SP. 2 104.0 33.9411 so 128 24.0 1152.0 32.636 CURA FOREMAN!! 2 10 0 5.6569 e 14 . 4.0 32.C 56 369 _ _ . _ _ __ OLf81RAPHIA $P. 2 1.0 0.0000 1 1 0.0 0.b O.000 00GES$A TIGRINA 2 _3.0 1.4142 g. 4 1.0 2.0_ 47 140 ___ _._ ___ _. _ _ _. ENALLAGPA SP. 2 1.0 0.0000 1 1 C.0 G.0 0.000 2 ._g.5 0.7071 o t u.5 o.5 141.421 E P.H_{ M E R F L t A _1P . IP ._ _ _ _ _ , EUKIEFFERIELLA 2 5.5 0.7071 5 6 U.S 0.5 12.056 HELoe0ELLA SP. , 2 0. 5 _ 0.7071 0 1 0.5 0.5 141.421 HYORDP5vCHE SP. 2 3.5 3.5355 1 6 2.5 12.* 101 015 15CHNURA SP. 2. .0. 5_. 0.7071 . 0.__. _ 1. .0. 5 . _ 0.5 141 421 _ . _ _ . _ _ _ _ _ 141 421 LIRCEUS SP. 2 10 1.4142 0 2 1.0 2.0 a, LUMBRICUg DAE 2 2.5 0.7071 2 3 0.5 0.5 20.234 e

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NEMOURA SP. 2 4.0 1.4142 3 5 1.0 2.0 35.355 NEURECLIP515 SP. 2 1.0 1.4142 0 2 1.0 - 2.0 ~141 421~ - - - - - -

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                                                                                                                                                                                                                                                            ~.0             0.0 ORTHOCL_AD195_ SP_a.                                  .. _ . . . _ . . . 2 .__.                            2.5                3.5355                   0                5               2.5           12.5.       141.421 OULIMNIUS SP.                                                                               2              0.5                0.7071                   0                1              0.5             05         141 421 PLEUROCERA 15VN. DXYTREPA) SP.                                                               2           11.0                 9.8995                   4               18               7.0           98.G          99.995                                  _ _ . . .

POLYPE0! LUM SP. 2 40.5 0.7071 40 41 0.5 0.5 1 746 RHEDTANYTAR5US SP. 2 40 0.0000 4 4 00 0.0 .G.000 _ _ _ _ _ _ _. SIMULIUM VITTATUM 2 16.5 4.9497 13 20 3.5 24.5 29.998 _ _ _ . _ _ ..ST1hACRDN SP. _.._ . . . _ , . 2 . .L O ,1.4142 .___ 2 4 1 0___. _,___2 o 47.146 SIENELMIS SP. 2 0.5 0.7071 0 1 0.5 0.5 141 421 5,fENONEMA SP. 2 1.0 1.4142 0 2 1.G 2.0 141.421 i Ne3) _ _ _ _ _ _ _ l l

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PMIff1_jfMD MACRDRENTMtf FNUMFRATIDAS . CDSCIFK tit? &a

              . --------------- _ _---- r------- ----- _:---                                                                                                     _Y E AR P7 ? _ _ _ M 913 h3_ _ N N e D 5_ N A 0 Z T A T !CHAN S E D R _ ------ _ ----------------------------------
                       .                       . .                     _ __ _-                                . . TAXON.                       . _ _ _ . .                       .R__              MEAN_           S TD.        __M 1.M . .J A X                                   STDEBR._. M L.                        .CV _ _                                            __                               .
                                                                                                             . _AAGIA_32.                                                          1                  *               -                         6                    6                 -                     -              -

ATHRIP50 DES SP. 2 1 0 1 1 0 0 0 CHIRONOMIDAE _____ 1__ 2 __.___2 .2 _. . .. . _ . . . _ , .__ . .. _ __ _. _ _ _ CORYDALUS CORNUTUS 1 1 . 1 1 . . .

       ' _ _ _ . _ . . . _ __                                                                                      CRICDTOPu5.3P._ .                                               1_ _16__ __ .                                           _le_                    16____.                          _ _ _ . . _ _ . ._

i _ ___. . . CURA FOREMAN!! 1 13 e 13 13 . . . _ _ __ DIGRQIE.NDIPES SP. 1 16 - la 16 - - - DUGESIA TIGRINA 1 4 . 6 6 . . . I . , NYOROPT{(A SP.._ _ 1._ _ 3 . __ _ a _ _ ). _ ._) _ ._a___ _ . . _ _e.__ _.. __ - .. I5CHNURA SP. 1 6 . 6 6 . . .

                            -                          ~ - ' ' ' " -                                     '

ORCONECTES SP. CHIA 5P T ~

1

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PERLESTA PLACIDA 1 1 . 1 1 . . . _ . . . . _ _. .. PHYSA $P. _. 1 .____L.. _.. _ l_ 1 _ . - _ _ . . _ . _ _ _ . _ _ _ _ _ _ _ _ _ POLYPEDILUM SP. __ 1 2 . 2 2 . . . RMEOTANYTAR5us SP.._. 1_ . _ 2. ..__ _2 _ 2 ._... _ .. ._ _ __ __ . _ STENACRON SP. 1 74 74 74 2 m 2 2 _ _ . _ , Sl{NONEMA SP. 1 . . - - 4 e Neg9 _ ,,, , _ _. ,_ ., ., , ___ .._ _ _ _ , _ _ ,_ m m eg g g 6- .M 6.+ .__ m m N * * .g..m + b - . - -. _. - . _ . .

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_ _ .fE1P.f D END MACRDRENTHtt ENUMERATION 1 . tPEffE1 1IST 45

 )              *---------                                 -- ----------- -------------                                                              YEARe79                  RMe124.3                   MNe06                     MAblTATeCHAN8EDR                             --------                --- -------------------------

TAXDN , H MEAN _ _ _ S TD._. __MIM___ _ M AK_ . _S T D EP P. _ _ V A IL . _ ____ t V._ _ __ . __ __ _ _ _ _._ __ _

80V E R jJ ._1P . ___ . _ _ _ . _ _ _ _ _ . 2 0.5 0.7071 0 1 0.5 0.5 141.421 CAMBARUS SP.. 2 0.5 0.7071 0 1 0.5 0.5 141.421 _ _ __ _ . . CHIRONOM ID.AE 2 .15 0.7071_._. 1___ _._ 2._ _ .0.5.. _ _ .0 5 _ .47 190 _ . . _. CHIRONDMus SP. 2 0.5 0.7071 0 1 0.5 05 141.421

CRIC0f0 pus.SP.._ __ _ _ 2____ _1 3_ _ 0 7071 .1__ _ _Z.___ . 0.5 _ ___0 7_.___972190_ _ _ ____..__..

CURA FOREMANIX 2 15 2 1213 0 3 15 4.5 141 421 D IC R0_T ENJ IE E 5_5 P , , . ...._2 16.5 4.9497 13 20 3.5 24.5 29.998 DUGE5IA TIGRINA 2 1.5 0.7071 1 2 0.5 05 47.140 HELOBDELLA_5P, _ 2_ .Ss5_ 0.7071 0 ._) ____D.5_..__.__0.5 . _141a421 _ . _ .

                                                             .___HYDROPSYCHE SP.                                                                                          2               0.5             0.7071                                0                 1                 0.5             05                141 421 LUMBRICULIDAE                                                                                          2               0,5             0.7071._                              0 _               1                 0. 5 ._         0,5               141.421                                ._ . _ _ _ . _ _ .

MACRONYCHU$ GLABRATUS 2 0.5 0.7071 0 1 0.5 05 141.421 _. NA]DIDAE_._._ _ _.__ __ . 2 0.5 0.7071 0 _1 0.5 n.5 141.421 PLEUROCERA (5VN. Oxv7REMA) SP. 2 2.0 1 4142 1 3 1.0 20 70.711 _ _ ._ _ _ _ POLYCENTROPUS SP. _ __.2, .10 1 4142 ._ . 0 _ . 2 1,0 2 ,0. __141 441 _ .__ . . _ _ PDLYPEDILUM SP. 2 29.0 14 1421 19 39 10.0 _200 0 4s.766 57ENACRON SP, 2 ..4 e 5_ _ ._3 5355.. _.__.Z_ ._ 7 __ . . 2.5 _ . _12 5__ __78,567__ _ _ ._ _ .. tz: TRICORYTHODES SP. 2 1.5 0.7071 1 2 0.5 05 47 140 Net 8 5 . e

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9. 9.

PHIPPS BEND MACRDBENTHff ENUMERATIDNS SPECIF1 1IST &a __ -------------.----------- _ _yg A R . 7 9 RM 11.4a) MN y 0 3_ _ H A B I T Alec ti AMOI DR_-------------- ---------------------------

                 .           ._.             .. .                               TANON                                                                                                             R.              _>tEAft.. _ _ _ s I D _                                                            MI N __ MAL. _ STOERA

_. VAR CV._ _ ANTOCHA SP. . . _ _ _ _ _ _ 2 1.0 1.4142 o 2 1.0 2.0 141.421 SAETIS SP. 2 3.0 0.0000 3 3 0.0 00 SER05U5 SP, 0.000 _ _ .2.. _0.5 _ _.0 7071_...._0. _.___1. . _ _0.5. - .._.0.5 ___141.421. 80VERIA SP. 2 1.0 0.0000 1 1 0.0 00 0,000 CHIRONQMjDAt. __. ._2_ 3a5 0.7071 3_. 4

                                                                                                                                                                                                                                                                                                                                 . _0. 5.__ _         _0. 3                20:203 l

COR81CULA MANILENSIS 2 1.5 0.7071 1 2 0.5 05 47 14C _i!LA!?GDNYL3P. .. ._ .._.2___ 0.5 a.7071 o i 05 as 1a1 ami CRICOTOPUS SP. 2 6.0 4.2426 3 9 3.0 18.0

                                                       , CURA _FOREMANII                                                                                                                                                                                                                                                                                                   70.711

_ _ _2 6.5 _ _2,1213 5 8 _ _1, 5 _ ._ 4,5 32,636 CUACULIONIDAE 2 0.5 0.7071 0 0.5

                                                                      .Du81RAPHIA SP, 1                              0.5           141.421 2                  2 , 0. . _. 2,8284                                                                0. _ .            4          2,0.                 8,0 _ 141:421 .

DUGE5IA TIGRINA 2 5.5 3.5355 3 8 2.5 _ 12.5 64.282 EMP ILI 2 0.5 0.7071 0 1 0.5 0.5 141.421 EunlEFF R L{ M P. 2 15 2 1213 0 3 15 4.5 141 421 FERRI 55!A SP, 2 4.5 4.9497 8

                                                                                                                                                                                                                                                                                                      .1                          _ 3. 5_ _           24 3__.._109 994 GLOSSIPHONIIDAE.                                                                                                       2                  3.0                                  1.4142                                       2

1.0 20 47.140 HAGENIUS BREVI 5TYLUS 2 ._._0.5 __0.7071 0 1 .c.5 0.5 .161 d21 to HYDROPSYCHE SP. 2 10.0 1.4142 9 1.0 HYORDPTILA SP. ~ ~ ~ 2 2.0 0.0000 2 11 2 0.0 2.0 0.0 14 142 0.000 6

as 15CHNURA SP. 2 10 1.4142 0 2 1.0 20 141.421 LUMBRICULIDAE 2 .8 5 _2,1213_. _0 3 1.5 4. 5. _ . ] 4 } . 4 2 L_ ,_, _ _ _ ,

                                                      . MUSCIDAE                                                                                                                                  2                  0.5                                 0.7071                                        0                  1 _       0.5                  0.5          141.421 NEURECLIPSIS SP,'                                                                                                      2                ~ 0,5-                               0,7071                                         0                            0.5
            - ~ ~ ~                     - - ~

ORCONECTE$ $P. 2 2.0 ' O.0000 2 1 2 0.0 05 0.0 ' 141.421- ~- '- O.000 PLEUR 9Cgj) QVN_3_D)(YJ.R [ M A ) S P . __ 2 __.3).5 3.5155 56 01 2.5 12.s a Asa POLYPEDILUM 3P. 2 33.0 24.0416 16 50 17.0 578.0 72.853 STENACRON SP. 2 10.0 11.3137 2 18 8.0 128.0 _113.137 STENONEMA SP. 2 9.5 9.1924 3 16 6.5 64.5 96.762

                          ~                                              STICTOCHIRONDMUS $P.                                                                                                    2                   1.0                               1.4142                                         0                  2          1.0                 2,0          141.421__.

TRic0RYTHODES SP. 2 12.5 13.4350 3 22 9.5 180.5 107.480 _ _ __T_118111C.LD A E _ . . _ _ . _. L. 4.0 5.6569 0 8 4.0 _ R,0 141.421 8 Nell ,. _ ___.. ___ _ . _,_. _ ._. - - _. . ~ . - - - - - --- - - - - - - - - - -- - - - - l ' s

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    )                                                                                                                                                                                                                                                                                                                                                                      _ __

3, . . . _ - - PMIppi BEND MACRO 8ENTHtt E Nunf RATIDMS . S D E C I E S e 117 47 l _,

     ) __ . _.--..__ _ _._ _.-_.--..--. .. .__. ____ _ __ y E A R o 7 9

_ . _ _ RMs1243 3 MNeg9 NAB IT AleCHAM8EDR __--- _ - - - - - - - - - - - - - - - - - - - - - - - - - -

                         ._ _ , _ .                   ._ ..__ TAXON                            _                . _ _                              _.            .._..N                                 _.MEAN               ___5TD__.___MIh_ __ MAX ____.5TDERR.._.__ VAR _ __.tv___                                                                                            _ _..                              _

B AE T Ii_itm__ . _. 2 1.0 1.4142 n 2 1.n 2.n tan asi 8ER05US SP. 2 0.5 0.7071 0 1 05 05 141.421

                  .._.              _...____                             80VERIA SP.                                                _                 _                 .          2_.._.0.5___. 0.7071.__ _ Q__                                                  __1.                   .0.5___                       0 5.._         .141 421_..____._.                                       _

CAMBARU5 SP.. 2 0.5 0.7071 0 1 0.5 05 141.421 COR81CULA_MANILEN513 _ _ _ ____2 0.3 - 0.7a71___ n 1 0.5_. . _ 0.5.._ 141.421_ i CPANGONyx SP. 2 2.0 2.8284 0 4 2.0 80 141 421 CR EQIOJ 1 h _ _ _ 2 5.5 2.1211 6 7 1.s 4.s na.sae CURA FOREMANIX 2 6.5 6.3640 2 11 4.5 40 5 97.907 _ . _ . . ._..__DUSIRAPHIA SP, _ 2_____.2,0..___2.8284__ _ _p ___ 4 I tG_ _ _ _9 9. 141.421 DUGESIA TICRINA 2 30.0 19.7990 16 44 14 0 3?2 0 65.997 _ . _ . .. . . . EUMIEFFERJELLA SPe. . ___ _ 2. __0,5___ 0.7071.__._D... 1_ . . __ . 0 5 . .. 0. 5 _141 421 _.. FERRISSIA SP. 2 2.5 0.7071 2 ___ 3 c.5 0.5 28.284 GLOSSIPHONIIDAE__ 2 3.5 0.7071 3 4 a.5 0.5 20.201 HETAERINA SP. 2 0.5 0.7071 0 1 C.5 0.5 141 421

                                                   .                    MYDROPTILA Sr.                                      __ ._ __ ..                                          2____.29:0___ 35.3553                                           4                   54                 23 0__._.__1250 0 _ 121.915 ISCHNURA SP.                                                                            . _ _ _2                                       1.0           1.4142              0                      2                 1.0                         20               141.421
               . , .                    . _ ._ __ MACR 0hYCHUS GLA8RATUS                                                                                                         2                             1.5           2 1213              0                      3            ___1,5.                          4.5              141 421..,__ _

NAIDIDAE NEMATA 2 2 05 0.5 0.7071 0.7071 c u 1 1 0.5 c.5 0.5 0.5 141 421 141 421 7 to

ORCONECTES SP.~~ 2 1.0 0.0000 1 1 0.0 0.0 0.000 PLEURDCER A (5YN. OEYTREMA) SP. 2 14.5 4.9497 11 18 3.5 24.5 34.136 ~~ ~

                                                                                                                                                                                                                                                                                                          7688.0 '~ 'i28.943
                '~                   - - -                                                                                                  '
                                                                                                                                                                                                                 ~
                                                                   'POLYPEDILUM SP.                                                                                             2                      ~48.0               87.6812               6                 130' ~ ~ ~ 62.0 ~

STENACRON SP.._..__ _.._ __2__ _4e9 4:2426 1 7 3e0_._ _.18 0 10).066 STENELMIS SP. 2 0.5 0.7071 0 1 0.5 0.5 _141 421 STICTUCHIR9NgMg5 SP. 2 1.5 2.1213 0 7 1.5 4.5 141.421 TRICORYTHODES SP. 2 15.0 11.3137 7 23 8.c 128.0 75.425 TUSIFICIDAE 2 0.5 ,, 0.7071 O _.1 C.5 0.5 141.421 . _ Na27 _ _ . _ _ _ . _ __. _ _. ..

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