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Annual Environ Surveillance Rept,1980.
	ML20003E411
Person / Time
Site:	Hatch
Issue date:	03/25/1981
From:	; GEORGIA POWER CO.
To:	;
Shared Package
ML20003E407	List: ML20003E406; ML20003E409; ML20003E411;
References
	NUDOCS 8104030385
	Download: ML20003E411 (225)
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O O c' ANNUAL REPORT INTRODUCTION Thia annual report is submitted pursuant to paragraph 5.7.1 (a) of the Environmental Technical Specifications (ETS), which is Appendix 3 to the operating licenses for Edwin I. Hatch Nuclear Plant (D7), Units I and II, DPR-57 and NPF-5, respectively. This report inc ludes su-iries, analyses, interpretation, and statistical evaluation of the results of l

the environmental monitoring at and in the environs of B7 during 1950.

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{' ' ANNUAL REPORT TABLE OF CONTENTS CHAPTER 1 WATER QUALITY MONITORLNG Section Title Page, l.1 PHYSICAL AND CHEMICAL REQUIREMENTS 1-1 1.1.1 SPECIFICATION 1-1 1.1.2 'RESULTS AND DISCUSSION 1-1 1.2 THERMAL l-5 1.2.1 SPECIFICATION 1-5 1.2.2 1980 MONITORING PROGRAM l-5 1.2.3 PLUME MODEL VERIFICATION 1-9 1.3 pH MONITORING l-12 1.3.1 SPECIFICATION 1-12 1.3.2 RESULTS AND DISCUSSION 1-12 1.4 ' CHLORINE MONITORING 1-25 1.4.1 SPECIFICATION _ 1-25 1.4.2 RESULTS AND DISCUSSION 1-25

1.5 REFERENCES

1-32 CHAPTER 2 RADIOLOGICAL MONITORING Section. Title Page 2.~ l ~ INTRODUCTION 2-1

2. 2 ' DISCHARGES TO THE ATMOSPHERE 2-2 2.2.1 AIRBORNE DUST 2-4

'2.2.2 AIRBORNE IODINE 2-8 2.2.3 THERM 0 LUMINESCENT DOSIMETERS 2-8 2.2.4 MILK- 2-13 2.2.5 GRASS 2-14 2.3 DISCHARGES TO THE RIVER 2-17 2.3.1 RIVER WATER 2-17 2.3.2 CLAMS 2-18 2.3.3 AMERICAN SHAD 2-18 2.3.4 SEDIMENT 2-18 2.4~ DISCHARGES TO Tile GROUND 2-19 2.4.1 AREA NORTH OF TURBINE BUILDING 2-21 2.4.2 CST-1 AREA 2-21 2.4.3 OTHER' AREAS 2-25

t. f.A 2.5 CROSSCHECK PROGRAM - 2-26 ij

2.6 CONCLUSION

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HNP ANNUAL REPORT TABLE OF CONTENTS CHAPTER 3 METEOROLOGICAL MONITORING Section Title Page 3.1 SPECIFICATION 3-1 3.2 ON-SITE METEOROLOGICAL MONITORING 3-1 3.3 DATA SUMMARIES - 1980 3-1 3.4 COMPARISON OF 1980 DATA 3-1 CHAPTER 4 BIOLOGICAL MONITORING Section Title Page 4.1 IMPINCEMENT OF FISH 4-1 4.1.1 SPECIFICATION 4-1

- (~') 4.1.2 RESULTS AND DISCUSSION 4-1

() 4.1.3 SLT!ARY 4-4 4.2 EhTRAINMENT 4-5 4.2.1 SPECIFICATION 4-5 4.2.2 RESULTS 100) DISCUSSION 4-5 4.2.3

SUMMARY

4-18 4.3 BENTHOS 4-19 4.3.1 SPECIFICATION 4-19 4.3.2 MATERIALS AND METHODS 4-19 4.3.3 RESULTS AND DISCUSSION 4-20 4.3.3.1 DENDY DATA 4-20 4.3.3.2 PETERSEN DATA 4-32 4.3.4

SUMMARY

4-42 4.4 AERIAL REMOTE SENSING 4-46 4.4.1. SPECIFICATION 4-46 4.4.2 RESULTS AND DISCUSSION 4-46

4.5 REFERENCES

4-47 CHAPTER 5 ADMINISTRATIVE CONTROLS Section Title Page

-5.1 . SPECIFICATION 5-1

,~~s '5.2- DISCUSSION 5-1

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(,/ ICIP ANNUAL REPORT CHAPTER 1 WATER QUALITY MONITORING TABLE OF CONTENTS Section Title Page 1.1 PHYSICAL AND CHEMICAL REQUIREMENTS 1-1 1.1.1 SPECIFICATION 1-1 1.1.2 RESULTS AND DISCUSSION 1-1 1.2 THERMAL 1-5 1.2.1 SPECIFICATION 1-5 1.2.2 1980 MONITORING PROGRAM l-5 1.2.3 PLUME MODEL VERIFICATION 1-9 1.3 pH MONITORING 1-12 1.3.1 SPECIFICATION 1-12 1.3.2 RESULTS AND DISCUSSION 1-12 1.4 CHLORINE MONITORING 1-25 1.4.1 SPECIFICATION 1-25 1.4.2 RESULTS AND DISCUSSION 1-25

1.5 REFERENCES

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'.O HNP ANNUAL REPORT CllAPTER 1 WATER QUALITY MONITORING LIST OF TABLES Table- Title Pjge 1.1-1 DISSOLVED OXYGEN AND TEMPERATURE DATA 1-2 FOR 1980.

1.1-2 PREOPERATIONAL CISSOLVED OXYGEN AND 1-3 TEMPERATURE DATA FOR 1971-1974.

1.1-3 UNIT 1 OPERATIONAL DISSOLVED OXYGEN AND- 1-4 TEMPERATURE DATA FOR 1975-1979.

- 1.2-1. NPDES TEMPERATURE MONITORING. 1-6 1.2-2' ilATCli NUCLEAR PLANT THERMAL SURVEYS. 1-8 1,2-3 COMPARISON OF OBSERVED PLUME LENGTilS AND l-11 SURFACE AREAS WITH THOSE PREDICTED BY THE CARTER THREE DIMENSIONAL BOUYANT PLUME MODEL.

1.3-1 INTAKE RIVER WATER pH (WEEKLY ANALYSIS). 1-14 1.3-2 . LOW VOLUME WASTE (PRESSURE FILTER BACKWASH).

1-16 1.3-3 LOW VOLUME WASTE pH (NEUTRALIZATION TANK). 1-17

[-. ~ 1.3-4 SEWAGE TREATMENT PLANT LOW VOLUME WASTE l-18 (PLANT WASTE SYSTEMS - WEEKLY ANALYSIS).

1.3-5 LOW VOLUME WASTE pH (LIQUID RADWASTE). 1-20 1.3-6 CONDENSER EFFLUENT pil .(WEEKLY ANALYSIS). 1-21 1.3-7 COMBINED PLANT WASTE STREAMS pH (WEEKLY l-23 AVERAGE pH).

1.4-1 MONTHLY SANITARY WATER CHLORINE USAGE. 1-27

~ 1. 4- 2 -' PLANT SERVICE WATER SYSTEM CHLORINATION. 1-28 "1.4 3 CIRCULATING WATER SYSTEM CHLORINATION - POUNDS 1-29

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. OF CHLORINE.USED.

1.4-4' CIRCULATING WATER SYSTEM CHLORINATION. 1 1.4 ' COMBINED PLANT WASTE STREAMS. 31 7

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g, \ IINP Ah3UAL REPORT Cl! APTER 1 WATER QUALITY MONITORING LIST OF FIGURES Figure Title 1.1-1 ALTAMAHA RIVER D.O.-TSMPERATURE SURVEY STATIONS.

1.1-2 ALTAMAllA RIVER CONTINUOUS TEMPERATURE MONITOR WEEKLY MAXIMUM AND MINIMUM TEMPERATURE RIVER MILE 116.2.

. 1.2-1 ALTAMAllA RIVER TilERMAL PLUME TRANSECTS.

1.2-2 ALTAMAHA RIVER THERMAL PLUME SURVEY FOR JUNE 19, 1980 (9:25).

1.2-3 ALTAMAHA RIVER THERMAL PLUME SURVEY FOR AUGUST 7, 1980 (9:30).

1.2-4 ALTAMAHA RIVER THERMAL PLUME SURVEY FOR AUGUST 7, 1980 (17:30).

1.2-5 ALTAMAllA RIVER THERMAL PLUME SURVEY FOR AUGUST 11, 1980 (16:10).

1.2-6 ALTAMAllA RIVER TilERMAL PLUME SURVEY FOR AUGUST 12, 1980 (12:02).

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1.4-1 CHLORINE CONCENTRATION-TIME LIMIT VIOLATION FOR MAY 12, 1980.

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(~N HNP O ANNUAL REPORT

1. WATER QUALITY MONITORING 1.1 Physical and Chceical Requirements 1.1.1 Specification The Edwin I. Hatch Nuclear Plant Operating License Stage Environmental Report requires that a dissolved oxygen and temperature survey be conducted weekly at pre-selected stations in the Altamaha River. Also, a temporary temperature monitor was installed on a piling within the estimated mixing zone of the HNP discharge and will remain there until verification of the HNP thermal plume predictive model is completed.

1.1.2 Results and Discussion The Georgia Power Company water quality monitoring program of the Altamaha River consists of a weekly dissolved oxygen and temperature survey and a temporary temperature monitor in the estimated mixing zone. A map of the dissolved oxygen and temperatura survey stations is shown in Figure 1.1-1.

The HNP discharge is located between Station 6 and Station 7 at river mile 116.2. Measurements of dissolved oxygen and temperature were taken at depths of 1 foot, 3 feet, 5 feet, 10 feet, and bottom of channel where applicable. A summary of the dissolved oxygen and temperature data col-()

,_s Iccted at the 3-foot level during 1980 is shown in Table 1.1-1. Data collected during preoperational and during Unit 1 operational phases are presented in Tables 1.1-2 and 1.1-3, respectively. Mean dissolved oxygen levels in 1980 were approximately 1.5 mg/l higher than preoperational data and approximately 1.1 mg/l higher than Unit 1 operational data.

Maximum dissolved oxygen levels for 1980 were 3.0 to 4.3 mg/l higher than preoperational data and ranged from 2.3 mg/l higher to 0.2 mg/l lower than operational data. Minimum dissolved oxygen levels for 1980 were approximately 1.4 mg/l higher than past data collected. Mean temperature levels for 1980 were approximately 1.5 C lower than preoperational data and were about 1.0 C Jower than operational data. Maximum temperatures were from 0.1 to 1.0 C higher than preoperational data and were 0.1 to 0.9 C lower than operational data. Minimum temperatures for 1980 were 0.1 to 0.5 C lower than preoperational data but were approximately 4.5 C higher than Unit 1 operational data. This can be attributed to the unusually cold winters of 1976 and 1977 The dissolved oxygen and tem-perature survey was shortened to six st ? .s in September, 1973, and to three stations in August, 1977. The touperature data collected from the continuous temperature monitor on a piling downstream of the HNP discharge within the mixing zone are shown in Figure 1.1-2.

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IGP ANNUAL REPORT TABLE 1.1-1 Dissolved Oxygen and Temperature Data for 1980 Dissolved Oxygen, (eg/1)

Station River Mile Min. Max. Mean Obs.

6 117.0 6.3 14.0 9.1y 53 7 116.0 6.3 13.8 9.09 40 9 113.2 6.3 14.7 9.01 47 Temperature, ( C)

Station River Mile Min. Max. Mean Obs.

6 117.0 6.5 30.1 18.50 53 7 116.0 6.9 30.1 18.52 39 9 113.2 6.8 31.0 18.36 47 0

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HNP ANNUAL REPORT TABLE 1.1-2 Preoperational Dissolved Oxygen and Temperature Data for 1971-1974 Dissolved Oxygen, (mg/1)

Station River Mile Min. Max. Mean Obs.

1- 0. 5 5. 0 10.6 7.75 62 2 0.5 4. 7 10.4 7.38 79 3 135.0 4. 9 10.6 7.54 83 4 126.9 4.9 10.4 7.48 83 5 120.5 4.9 10.4 7.56 134 6 117.0 4.9 10.8 7.57 137 7 116.0 4.9 10.8 7.58 135 8 113.1 2. 9 10.2 6.80 75 9 113.2 4.9 10.4 7.65 138 10 111.0 4.9 10.6 7.65 138 11 108. 0 5. 0 10.6 7.60 119

(-^g Temperature, ( C)

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Station' River Alle Min. Max. Mean Obs.

1 0.5 6. 7 29.8 18.64 62 2 0.5 . 7. 2 30.0 19.87 79 3 135.0 7. 0 30.0 20.04 83 4 126.9 7.0 30.0 20.08 83 5- 120.5 7. 0 30.0 19.89 136 6 117.0 7. 0 30.0 -20.03 139 7 116.0 7. 0 30.0 19.96 137 8- 113.-1 6. 9 30.0 19.65 75 9 113.2 7.0 30.2 20.03 140 10 111.0 7. 0 30.2 20.08 140 11 108.0- 7. 0 30.1 20.58 121 w._

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IciP ANNUAL x2 PORT TABLE 1.1-3 Unit 1 Operational Dissolved Oxygen and Temperature Data for 1975-1979 Dissolved Oxygen, (mg/1)

Station River Mile Min. Max. Mean Obs.

5 120.5 5. 2 12.4 7.63 129 6 117.0 5. 0 13.0 7.95 254 7 116.0 4.9 14.0 7.93 254 9 113.2 5.1 12.4 7.91 248 10 111.0 5. 4 13.2 7.69 134 11 108.0 5. 3 12.0 7.65 123 Temperature, ( C)

Station River Mile ' Min. Max. Mean Obs.

,_s 5 120.5 2. 2 30.8 19.09 132

' 1('~') 6 117.0 2.1 31.0 19.36 257 7 116.0 2. 2 30.9 19.45 257 9 113.2 2.2 31.1 19.63 251 10 111.0 2. 5 30.9 19.04 137 11 108.0 2.2 31.0 19.36 131 e~s

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HNP Annual Report 1.2 Thermal 1.2.1 Specifications reaperatures of the intake water and the discharge from the cooling system to the river were measured in accordance with the Environmental Program Description Document (EPDD) as required by Section 3.1.1.1 of the HNP-FTS, Units 1 and 2. The EPDD requires that the intake water iemperature, temperature of the combined plant vaste streams, and mixing zone water temperature be measured on a weekly basis. This program began with attainment of normal operation of Unit 2 during September,1979, and will continue in accordance with the requirements of NPDES Permit No. CA-0004120. The NPDES per-mit requires that weekly temperature measurements be taken at the intake, at the mixing chamber (last point before discharge of combined plant waste streams), and at a point 500 feet downstream of the dis-charge pipe. In addition, the NPDES permit states, " Georgia Power Company will initiate work on a study to field verify and/or fine tune their thermal plume predictive model not later than six months following commercial operation of Unit 2."

1.2.2 1980 Monitoring Program

In accordance with the EPDD and NPDES permit, temperatures were measured on a weekly basis at the intake structure or at a midstream point upstream of the inta e, at the mixing chamber, and at the down-stream edge of the mixing c :ne (approximately 500 feet downstream of the discharge point). A cecplete listing of the temperatures is given in Table 1.2-1. The maximum observed dif ference between intake and mixing zone temperatures (AT) was 3.2 F, which occurred on 10-01-80.

All temperatures measured are within the limits required by the NPDES

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permit (90 F maximum or 5 F rise above ambient).

The NPDES permit also requires GPC to begin field verification-and fine tuning of the predictive thermal plu=e model not later than six months af ter commercial operation of Unit 2. Twelve thermal plume monitoring surveys were conducted during 1980. During each of the twelve surveys, temperature measurements were taken at depths of 1 f t. ,

3 ft., and 5 ft. All temperature measurements were made from a boat moving along pre-selected transects in the river (Figure 1.2-1) using a temperature. probe and continuous recorder. Monitoring equipment was calibrated in the laboratory before each survey and rechecked in the field - before and af ter each. survey. Other data collected, in addition to the temperature measurements, are listed in Table l.2-2. No data were collected during inclement weather.

The temperature-data collected for five of the twelve surveys are shown on Figures 1.2-2 through 1.2-6. These figures show the thermal ~

(~ N. plumes existing on each of the survey dates and the corresponding com-(_ / puter model-predictions. The largest rise above ambient river 1-5 L

HNP f~s ANNUAL REPORT

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TABLE 1.2-1 NPDES TEMPERATURE MONITORING Mixing Chamber Unit I Unit II Mixing Intcke Discharge Z "*

Date Temp. ( F) Temp. ( F) Dischar5 Temp. (F ) Temp. ( F) AT 01/02/80 52.0 52.0 79.0 52.0 0.0 01/10/80 48.0 71.0 75.0 48.0 0.0 01/16/80 51.0 71.0 79.0 51.0 0.0 01/23/80 52.0 71.0 75.0 52.0 0.0 01/30/80 50.0 67.0 52.0 50.0 0.0 02/07/80 44.0 63.5 64.0 44.0 0.0 02/19/80 46.5 68.0 72.0 46.5 0.0 02/20/80 48.0 66.0 58.0 48.0 0.0 02/28/80 51.5 74.0 76.0 51.5 0.0 03/05/80 48.0 76.8 53.4 48.0 0.0 03/12/80 54.0 75.0 58.0 54.0 0.0 03/19/80 55.0 63.0 60.0 55.0 0.0 03/26/80 59.0 69.0 63.0 59.0 0.0 04/02/80 62.0 70.0 65.0 62.0 0.0 04/09/80 62.0 73.0 66.0 62.0 0.0

(~ 04/16/80 64.0 67.0 -64.0 64.0 0.0

\~J 04/25/80 66.0 80.0 70.0 66.0 0.0

~04/30/80 67.0 84.0 84.0 67.0 0.0 05/07/80 69.0 88.0 72.0 69.0 0.0 05/14/80 75.0 70.0 78.0 75.0 0.0 05/22/80 77.0 91.0 78.0 77.0 0.0 05/28/80

78.0 87.0 * -

06/05/80 76.0 79.0 78.0 76.0 0.0 06/13/80 79.3 79.0 78.0 79.3 0.0 06/18/80 79.2 74.0 88.0 79.2 0.0 06/25/80 81.0 90.0 90.0 81.0 0.0 07/02/80 79.0 80.0

79.0 0.0 07/09/80 84.0 83.0- 89.0 84.0 0.0 07/16/80 86.0 90.0 90.0 88.0 2.0 07/23/80 84.0 79.0 94.0 84.0 0.0 07/31/80 85.0 90.0

86.0 1.0 08/06/80 86.0 86.0 62.0 86.0 0.0 08/13/80 85.0 78.0 88.0 85.0 0.0 08/20/80 85.0 95.0 90.0 85.0 0.0 08/28/80

90.0 -86.0 * -

09/03/80 84.2~ 93.2 92.3 84.2 0.0 09/10/80 81.0- G9.0 176.0 82.0 1.0 09/27/80 83.0 86.0_ 85.0 84.0 1.0 09/24/80 82.0 92.0 92.0 83.0 1.0 10/01/80 70.2 82.9 79.5 73.4 3.2

.10/08/80 67.8' 82.6 74.8 68.4 0.6

<-4 10/15/80 '66.0 67.0 79.0 66.0 0.0

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j 10/22/80 67.8 82.6 80.2 68.2 0.4 1-6 E

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HNP

/~T ANNUAL REPORT

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TABLE 1. 2-1 (Con' t. )

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Mixing Chamber {

Unit I Unit II Mixing Intake Discharge Discharge Zone !

Date Temp. ( F) Temp. ( F) Temp. ( F) Temp. ( F) AT 10/29/80 62.8 82.6 84.4 64.9 2.1 >

11/05/80 62.4 73.8 67.1 63.5 1.1 11/12/80 58.5 73.0 63.3 59.7 1.2 11/19/80 57.0 71.1 59.5 57.0 0.0 11/26/80 54.5 70.0 53.5 56.8 2.3 i

.i 12/03/80 53.6 58.6 56.3 53.6 0.0 12/10/80 55.4 76.8 59.9 55.6 0.2 ,

12/17/80 51.3 69.4 54.1 50.5 -0.8 12/23/80 48.4 68.0 52.0 47.1 -1.3

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Monitor out of service for repairs.

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TABLE 1.2-2. 11ATCll NUCLEAR PLANT TilERMAL PLIME SURVEYS Megawatts River River River Dischar ge Discharge Discharge River Thermal Elevation Discharge Velocity Volume Velocity Temperature Temperature Date Unit 1 Unit 2 (ft) (cfs) (ft/s) (cfs) (ft/s) ( F) ( F) 06-18-80 1 70 2421 66.2 4870 1.40 71.3 3.71 87.1 83.0 (14:30) 06-19-80 2010 2399 66.0 4720 1.25 75.7 3.98 88.3 81.3 (9:25) 2 08-06-80 1731- 2397 65.0 3220 1.64 64.6 3.36 86.0 89.2 (15:10) 08-07-80 2061 2389 65.0 3220 1.31 98.0 5.09 88.0 87.1 (9:30) 08-07-80 2247 2383 65.0 3220 1.64

,.5 1.79 93.9 89.4 (17:30)3 08-08-80 2348 2320 65.0 3220 1.64 35.6 3.71 93.9 86.9 g

f, (10:15) 08-11-80 2403 2400 64.7 2890 1.31 33.4 1.74 88.0 86.4 (16:10) 08-12-80 2415 2419 64.7 2890 1.48 32.3 1.68 89.1 87.4 (12:02)4 64.7 2890 1.31 36.8 1.91 89.1 88.5 08-12-80 2405 2392

-(16:15)1 08-13-80 150 2409 64.7 2890 1.31 70.8 3.68 88.0 87.1 (10:45)3 10-30-80 1951 2380 64.6 2840 0.98 40.1 2,08 81.0 65.5 (14:00)3 2400 64.6 2840 0.98 39.0 2.03 74.5 63.5 10-31-80 1903 (10:10) kNoplumedetected.

' Discharge temperature less than river temperature.

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Discharge from Unit 1 cooling towers only.

Thermal plume affected by solar heating.

M temperatures was 1.5 F on the 1-ft. transects taken 6-19-80. This plume did not extend more than 250 ft. downstream of the discharge.

The maxf.=um AT on the 1-ft. transects for the remaining surveys was 0.5 F. The maximum increases in water temperature for the 3-ft.

and 5-ft. transects were 0.5 F or less for all surveys.

In addition to the five surveys shown in Figures 1.2-2 through 1.2-6, seven plume surveys yielded inconclusive data (Table 1.2-2).

Three of these surveys were conducted with only one cooling tower discharging heated water (8-8-80, 10-3-80, and 10-31-80). No thermal plumes were detected in the river on two of the seven surveys (6-18-80,

' and 8-13-80). Model predictions suggest the possibility of plu=ea which did not extend downstream enough to be detected at the transects.

The cooling towers were discharging water colder than a=bient river >

temperature during the survey on 8-6-80. The data from the remaining survey (8-12-80, 16:15 EDST) shows the effects of solar heating ic=edi-ately downstream of the barge slip. During this survey, the ambient air temperature was 97 F. Because of the low water elevation, 64.7 f t. ,

the shallow areas.near the sandbar were heated by extreme solar radiation.

Solar heating resulted in a secondary thermal plu=e which was entrained into the downstream portion of the discharge plume. The secondarg plume was evident as a localized increase in water temperature to 90.0 F, approximately 800 ft. below the disch'rge. The ambient water temperature and discharge temperatures were 88.5 F and 89.1 F, respectively. This secondary plume biased the data collected, and no comparison with model predictions could be made. The preceding sevan surveys are not presented in figures.

1.2.3 Plume Model Verification The results shown in the 1976 annual report demonstrate that a suitable thermal plume model, the Carter Three Dimensional Thermal Plume Model, has been field tested and verified for one-unit operation (Carter et al. ,1973. Edinger et al. ,1974, and Georgia Power Company.

1977). As~ required by the NPDES permit, this model must also be veri-fled for.two-unit operation.

Comparison of observed and predicted surface plumes .for each of the 1980 surveys are presented in Figures 1.2-2 through 1.2-6. A dimensionless constant has been adjusted in the model in order to ob-2 tain the best, fit between observed and predicted plu=e dimensions. . '

This co" snt . adjusts the point where dilution of excess . heat begins andtis affeeted by the-AT and the discharge volume. The constants for the 1980 thermal plume surveys ranged from 4 to 40 with an average ,

value of 18.9. The lowest value of the-constant,(C = 4) nccurred with- >

a low discharge volume and an elevated AT (34.5 cfs and 4.5 F, respec- E tively). Higher discharge volumes _or lower AT values required inter-

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mediate values for the constant (ranging from 12 to 20). . The largest '

.value of the constant (C = 40) occurred.with the highest discharge- -

volume and lowest ' AT '(0. 9 .#F and '98.0 cfs, respectively). - The large

. constant required reflects the difficulty-in modeling plumes at.lov excess temperatures. Excluding the survey with 'the love,t AT and -

. ; highest discharge volume, the: constants for the remaining surveys range from 4-to 20. -

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- (~N The overall dimensions of the observed and predicted plumes are

\_ ,) summarized for each survey in Table 1.2-3. The observed and predicted lengths are tabulated to the nearest 50 f t. , which is the accuracy to which the plumes could be predicted from the data. Table 1.2-3 shows a reasonable comparison between the observed and predicted lengths 6 considering that excess temperature isotherms no greater than 1.5 F could be identified from the field data. Similar results are shown for the plume surface areas. The higher surface areas of the observed plumes are ar.tributed to increased surface spreading caused by the sandba r. These results are within the accuracy to be expected from a simple empirical model for low excess te=perature isotherms.

The plume model verification was conducted under conditions comparable to average su=cer conditions. The estimated fully mixed excess temperature for average su=cer conditions (average river flow of 3000 cf s and AT = 4.7 F) is 0.09 F (Georgia Power company, 1975).

During the 1980 thermal plume surveys, the period of lowest river flow

. and greatest cooling tower heat rejection occurred during the survey on 8-7-80 at 17:30 EDST (Table 1.2-2). The river discharge on 8-7-80 was 3220 cfs. The fully mixed excess temperature at 17:30 EDST was 0.05 C with a cooling water discharge of 34 cfs and AT of 4.5 C. This demonstrates that the cooling towers are operating as predicted.

Calibration of the Carter model to the 1980 field data for discharge from two units yielded constants ranging from 4 to 20 with an average value of 13. Model predictions for a AT value less than 1 F, and cooling tower discharge of 98 cfs required a constant of 40 and is not considered

(~ ') typical of normal conditions. Results reported for Unit 1 operation during 1976 yielded constants ranging from 5 to 16 with an average value of 10 (Georgia Power Company, 1977). These comparisons demonstrate that the Carter model is a reasoncble approximation for- the Hatch thermal plume. Thus, a suitable thermal plume model has been verified and cali-brated with field surveys as required in the NPDES permit.

This completes the requirements set forth by NPDES Permit No. GA-0004120. A su==ary report on the results will be submitted to the Georgia Environmental Protection Division (EPD). Upon review and approval by the EPD,' the NRC will be notified.

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1 TABLE 1.2-3. COMPARISON'0F.0BSERVED PLUME LENGTHS AND SURFACE AREAS WITH THOSE

-' PREDICTED BY TliE CARTER THREE-DIMENSIONAL BOUYANT PLUME MODEL Survey . Contour Length :(f t) Surface Area (ft )

Date. <

Constant'. ( F) ' Observed. Predicted Observed Predicted i

~06-19-80' 17 ' 1. 0 400 400 6.7 x 10 1.0 x 10'4 l (9:25)' 0. 5 ' 1000+ -1250 14.8 x 10 7.4 x 10 fK :.08-07-80 40 -0.5 300 300 2.4 x 10 0

0.5 x 10 0

(9:30)'

~08-07-80. 0 0

'4 0.5 250 250 0.7 x 10 0.4 x 10

~(17:30) '

i 08-11 '

20 0.5 200 200 0.6 x lo' O.4 x 10' (16:10) . -

08-12-80 12 0.3 4 4 250 250 1.0 x 10 0.2 x 10 (12:02)

(m gy is ANNUAL REPORT 1.3 pH Monitoring 1.3.1 Specification According to Section 3.1.1.2 of the HNP-ETS, during normal operation of the station, the pH of the intake water and the discharge water shall be measured as specified in the Program Description developed by the licensee in accordance with Section 5.6.1. This specification applies to outfall series number 001, as identified in NPDES Permit No. GA-0004120.

This monitoring program shall cocmence with the initial attainment of normal operation of Unit 2 and continue until approval fcr termination or modification of this monitoring requirement is obtained from NRC in accordance with Section 5.7.3.

According to the Environmental Program Description Document (EPDD),

the pH of the intake river water and of the discharge water will be measured prior to release to the Altamaha River. According to the EPDD, grab samples of intake river water for pH analysis will be taken either from existing intake sample lines or from midstream of the Altamaha River at the surface or a near-surface depth upstream from the discharge. Prior to discharge, grab samples for pH analysis will 7-

) be taken from the mixing chamber, which is the final sampling point before discharge to the river.

1.3.2 Results and Discussion Prior to May, 1980, the pH of the plant intake river water was monitored and recorded continuously. The plant intake river water sample line was severed in May, which prohibited further continuous monitoring.

Samples are presently being collected at a near-surface depth upstream from the discharge and will continue until the intake sample line is repaired. The pH data for the intake river water are shown in Table 1.3-1.

As specified, pH is monitored at the mixing chamber, which is the final point before discharge to the river. The specified limits are 6.0 to 9.0 pH at the point of release.

In accordance with the NPDES permit, the pH of the cooling tower blowdown, low volume waste, sewage plants, liquid radwaste, and com-bined plant waste streams is measured. All plant waste streams empty into a mixing chamber at the discharge structure before discharge to the Altamaha River. All waste streams must meet limits specified in the NPDES permit (6.0 to 9.0 pH). The following paragraphs summarize the pH monitoring program for each sampling point.

The pH of the cooling tower blowdown is continuously monitored in the

, ; water analysis rooms of Units I and II to assure that the pH is within

-- specified limits.

1-12

g Low volume waste constitutes the neutralization tank and pressure

{^/

s_ filter backwash. The neutralization tank is continuously monitored for pH, while the tank is being neutralized and during discharge.

Discharge of the neutralization tank will stop automatically if there is an increase or decrease in pH beyond the specified limits. The pressure filter backwash is continuously monitored for pH when the water treatment plant is in service. On May 12, 1980, the bimonthly pH sample monitoring of the pressure filter backwash was changed to .

quarterly analysis.

The pH monitoring of the effluent tank of the sewage treatment plants was replaced with weekly pH analysis of the aeration and settling tanks for each plant in operation. Plant number three operates continuously, while plants one and two are utilized as support services to plant three.

According to the NPDES permit, other than the radwaste component, the liquid radwaste system is considered part of the low volume waste and shall meet the same pH limitations.

Combined plant waste streams for Units I and II are monitored and recorded continuously at the plant discharge structure before dis-charge to the river.

Tables 1.3-2 through 1.3-7 sunnarize the pH data for the above streams at Plant Hatch during 1980. The limits set forth in the NPDES Permit No. GA-0004120 were adhered to in 1980 with no noncompliances.

/, I V

\

q,-

1-13

HNP ANNUAL REPORT

(( ) TABLE 1.3-1 Intake River Water pH (Weekly Analysis)

Date pH 1/2/80 6.9 1/9/80 7.0 1/16/80 6.9 1/23/80 6.7 1/30/80 6.4 2/7/80 6.6 2/14/80 6.8 2/20/80 6.8 2/28/80

6.7 3/5/80- 6.8 3/12/80 6.6 3/19/80 6.4 3/26/80 6.5 4/2/80 6.5 4/9/80 6.5 4/16/80 6.1 4/25/80 6.2 4/30/80 6.5

.Os.

5/6/80 6.4

' 5/15/80 6.7 5/22/80

5/28/80

6/5/80

6/13/80

6/18/80

6/27/80 6.5

-7/3/80 6.3 7/10/80 7.4 7/17/80 7.3

'7/23/80 6.9 7/31/80 6.9 8/8/80 6.9 8/12/80 7.2 8/20/80 No Flow 8/28/80 6.7 9/3/80- 7.2 9/10/80 7.0 9/17/80' .7. 0 9/24/80 6.6 10/1/80 6.9

-10/8/80- 6.9-10/16/80 7,o 10/21/80 6.9

-q) 1-14

HNP

() ANNUAL REPORT TABLE 1.3-1 (Continued)

Intake River Water pH (Weekly Analysis)

Date gli 10/28/80 7.4 11/5/80 7.2 11/12/80 7.1 11/19/80 6.3 11/26/80 7.2 12/3/80 7.3 12/10/80 7.7 12/17/80 7.0 12/23/80 7.6 12/29/80 7.1 Average 6.8 Median 6.9 Maximum 7.7 Minimum

{]) 6.1

Intake sample line broken O

1-15

l l

BNP ANNUAL REPORT TABLE 1.3-2 l Low Volume Waste pH (Pressure Filter Backwash)

Date Filter A Filter B Filter C Filter D ,

1/7/80 7.2 7.2 7.2 7.2 ,

1/21/80 7.2 7.2 7.2 7.2 .

3/3/80 7.8 7.8 7.8 7.8 !

3/17/80 7.5 7.5 7.5 7.5 4/7/80 7.6 7.6 7.6 7.6 4/21/80 7.5 7.5 7.5 7.5 5/5/80 7.6 7.6 7.6 7.6 5/19/80 7.6 7.6 7.6 7.6 6/2/80' 7.6 7.6 7.6 7.6 8/4/80 7.6 7.6 7.6 7.6 11/3/80 7.3 7.6 7.7 7.2 Maximum 7.8 7.8 7.8 7.8 Minimum 7.2 7.2 7.2 7.2

'O aver se Median 7.5 7.6 7.5 7.6 7.5

-7. 6 7.5 7.6 O

1-16

i HNP i j ANNUAL REPORT '

TABLE 1.3-3

( I

!. Low Volume Waste pH (Neutralization Tank)

Date pH l

l.

1/9/80 7.7 1/21/80 7.0 2/4/80 7.5 2/18/80 8.3 3/3/80 7.1 I i 3/18/80 7.6 I 4

4/9/80 8.8 !

4/21/80 7.0 5/6/80 7.5 5/19/80 8.0

! 6/9/80 8.8 6/16/80 7.2 !

l 7/7/80 8.9 7/21/80 8.3 !

8/4/80 6.5 8/18/80 6.3

. 9/3,*90 7.0 9/15/80 6.7 Q 10/8/80 10/20/80 6.2 6.3 11/3/80 6.8 11/17/80 7.2 ,

12/1/80 8.1 !

12/15/80 8.5

j. Average 7.5 Maximut 8.9 '

Minimum 6.2 E

f t

4

.- c 1-17

ENP ANNUAL REPORT TABLE 1.3-4 ;

Sewage Treatment Plant Low Volume Waste pH (Plant Waste Systems - Weekly Analysis)

Date Plant i1 Plant 42 Plant 0 3 1/10/80 *

7.0 1/16/80 *

6.9 1/24/80 *

6.8 1/30/80 *

7.0 2/8/80 *

6.8 2/14/80 *

6.8 2/22/80 *

7.0 2/29/80 *

7.0 3/5/80 7.0 7.2 7.1 3/13/80 7.0

6.8 3/21/80 7.0

7.0 3/27/80 7.0

7.0 4/2/80 7.0

7.0 4/8/80 7.3

7.0 4/16/80 7.2

7.2 4/24/80 *

7.1 s 5/2/80 *

7.1 5/8/80 *

7.1 5/16/80 *

6.9 5/21/80 *

6.9 5/28/80 *

6.9 6/4/80 *

6.9 6/11/80 *

6.9 6/17/80 *

7.1 6/25/80 *

6.9 7/2/80 *

6.9 7/9/80 *

7.0 7/1'f/80 *

6.9 7/25/80 *

7.2 l 7/31/80 *

6.8 l 8/6/80 *

7.0 8/12/80 l

6.5 8/22/80 *

7.6 i

8/28/80 6.3

73 l

9/5/80 *

7.0 9/10/80 *

7.1 9/17/80 *

7.3 9/24/80 *

7.1 l 9/30/80 *

7.0 10/9/80 *

].2 7.0 10/16/80

6.8 10/21/80 7.1 7.0 g 10/28/80 7.3 7.7 6.9 l

V 1-18 i

i l

ENP

""==

!O

i. TABLE 1.3-4 (Continued) i Low Volume Waste pH (Plant Waste Systems - Weekly Analysis)

Date Plant i1 Plant 62 Plant 0 3 11/4/80 7.0 6.4 7.2 11/11/80 6.8 6.5 7.2 11/19/80 7.3 7.5 7.1 ,

11/25/80 7.3 7.0 7.5 12/2/80 7.5 7.4 7.1 12/9/80 7.5 7.5 7.2 12/17/80 7.0 7.2 7.1 12/23/80 7.2 7.6 7.2 12/.:1/80 7.5 7.6 7.0 Minimum 6.3 6.5 6.5 Maximum 7.5 7.6 7.6 i

0ut of service Toos)

O I

O 1-19 I

'l d

NNP ANNUAL REPORT

. () TABLE 1.3-5 Low Volume Waste pH (Liquid Radwaste) pH pH Date Unit I Unit II ,

1/9/80 7.0 6.9 1/21/80 7.1 7.0 2/4/80 7.0 7.2 2/18/80 7.0 7.0 3/3/80 7.4 7.5 3/18/80 6.9 7.2 4/9/80 7.5 7.5 4/21/80 7.3 7.3 5/6/80 7.3 7.3 5/19/80 7.1 7.4 6/9/80 7.8 7.2 6/16/80 7.3 7.0 7/7/80 7.2 7.3 7/21/80 7.2 7.2 8/4/80 7.3 7.3 8/18/80 7.2 7.2 9/2/80 7.7 7.3 O

.- 9/16/80 7.7 7.6 7.6 10/8/80 7.7 10/20/80 7.4 7.6 11/3/80 6.7 6.8 11/17/80 6.7 6.7 12/1/80 6.4 7.2 12/15/80 7.2 7.2

- Average 7.2 7.2 Maximum 7.8 7.7 Minimum 6.4 6.7 O

1-20

.~ . . -

HNP ANNUAL REPORT

() TABLE 1.3-6 Condenser Effluent pH (Weekly Analysis)

PH pH Date Unit I Unit II 1/2/80 oos 7.2 1/9/80 7.5 7.3 1/16/80 7.7 7.1 1/23/80 7.3 7.7 1/30/80 7.2 7.2 2/6/80 7.2 7.3 2/13/80 6.9 7.2 2/19/80 7.2 7.3 2/26/80 7.1 7.2 3/5/80 7.3

i 3/11/80 7.4

3/19/80 7.3

3/26/80 7.3

4/1/80 7.3

4/8/80 7.3

4/15/80 7.2

4/23/80 7.3

() 4/29/80 5/6/80 7.4 7.4 7.1 7.4 7.3 5/15/80 7.3 7.3 5/22/80 7.6 7.3 5/28/80

7.2 6/6/80

7.3 6/13/80

7.2 6/20/80

7.3 6/27/80 7.1 7.1 7/3/80 6.2 6.3 7/10/80 7.6 7.7 7/17/80- 7.0 7.3 7/24/80 7.3 7.2

.7/31/80 7.5 7.2 8/8/80 7.1 6.9 8/12/80 7.2 7.2 8/20/80 7.3 -7.5 8/28/80 6.9 6.9 9/3/80 7.2 6.7 9/8/80 8.2 7.4 9/17/80 7.9 7.5 9/24/80 7.7 7.4 10/1/80 7.8 7.3 10/8/80 7.5 7.1 b '

1-21

l 1

1 f I RNP !

, ANNUAL REPORT '

TABLE 1.3-6 (Continued)

Condenser Effluent pH (Weekly Analysis)

PH pH Date Unit I Unit II i )

10/16/80 6.9 7.3 10/21/80 6.9 7.3 10/28/80 7.3 7.4 11/5/80 7.2

11/12/80 7.1

11/19/80 6.4

11/26/80 7.2

12/3/80 7.1

12/10/80 7.5

l 12/17/80 6,7

12/23/80 7.7

12/29/80 7.2

l Average 7.3

() 7.2 Median 7.3 7.3 Maximum 8.2 7.7 Minimum 6.2 6.3

Unit in cold shutdown DOS = Out of Senrice 1

l i

lO L ~1-22 l

(.

l' - . . . . . . . . _ . . . _ . . . - _ - . - - . . . . - _-._._ _ ._ _....-_ --. __ _ _ , . , . _ _ , _ -

ENP 4

ANNUAL REPORT f TABLE 1,3-7

)

Combined Plant Waste Streams pH (Weekly Average pH)

PR pH Date Unit I Unit II 1/1/80 to 1/6/80 8.1 6.8 1/7/80 to 1/13/80 7.5 7.1 1/14/80 to 1/20/80 7.1 7.0 1/21/80 to 1/27/80 6.8 6.9

' 1/28/80 to 2/3/80 6.8 6.9 2/4/80 to 2/10/80 6.7 7.3 2/11/80 to 2/17/80 7.2 7.2 2/18/80 to 2/24/80 6.8 6.8 2/25/80 to 3/2/80 7.0 6.9 3/3/80 to 3/9/80 7.7 7.2 3/10/80 to 3/16/80 6.8 6.8 3/17/80 to 3/23/80 6.5 6.5 3/24/80 to 3/30/80 6.7 6.6 3/31/80 to 4/6/80 6.7 6.8 4/7/80 to 4/13/80 6.6 6.7 4/14/80 to 4/20/80 6.6 6.6 4/21/80 to 4/27/80 6.6 7.0

(]) 4/28/80 to 5//./80 6.7 6.8 5/5/80 to 5/11/80 7.3 7.2 5/12/80 to 5/18/80 7.1 7.1 5/19/80 to 5/25/80 7.5 7.5 5/26/80 to 6/1/80 6.7 7.2 6/2/80 to 6/8/80 6.J 6.8 6/9/80 to 6/15/B0 7.2 7.6 6/16/80 to 6/22/80 7.4 8.0 6/23/80 to 6/29/80 7.6 7.9 6/30/80 to 7/6/80 6.8 7.4 7/7/80 to 7/13/80 7.1 7.0 7/14/80 to 7/20/80 7.1 7.1 7/21/80 to 7/27/80 7.4 7.0 7/28/80 to 8/3/80 7.3 7.1 8/4/80 to 8/10/80 7.3 7.1 8/11/80 to 8/17/80 7.5 7.4 8/18/8C to 8/24/80 7.7 7.3 8/25/80 to 8/31/80 7.5 7.1 9/1/80 to 9/7/80 7.4 7.4 9/8/80 to 9/14/80 7.4 7.1 9/15/80 to9/21/80 7.0 6.9 9/22/80 to 9/28/80 7.1 7.1 9/29/80 to 10/5/80 6.8 6.8 10/6/80 to-10/12/80 6.9 7.0 10/13/80 to 10/19/80 7.9 8.0

-(~x v

1-23

ENP ANNUAL REPORT TABLE 1.3-7 (continued)

Combined Plant Waste Streams pH (Weekly Average PB) pH pH Date Unit I Unit II 10/20/80 to 10/26/80 7.7 7.7 10/27/80 to 11/2/80 7.4 7.4 11/3/80 to 11/9/80 7.4 7.2 11/10/80 to 11/16/80 7.6 7.4 11/17/80 to 11/23/80 7.6 7.5 11/24/80 to 11/30/80 7.1 7.0 12/1/80 to 12/7/80 7.0 7.1 12/8/80 to 12/14/80 7.5 7.4 12/15/80 to 12/21/80 7.6 7.4 12/22/80 to 12/28/80 7.6 7.3 12/29/80 to 12/31/80 7.6 7.2 Average 7.2 7.3 Median 7.1 7.1 Maximu= 8.1 8.0 Minimum 6.6 6.5 O

i 1-24

,3, HNP

! ,) ANNUAL REPORT 1.4 Chlorine Monitoring 1.4.1 Specification According to Section 3.1.1.3 of the HNP-ETS, during normal plant operation of the station, the discharge to the river of free available chlorine from the cooling tower system shall be measured as specified in the Program Description developed by the licensee in accordance with Section 5.6.1.

The Environmental Program Description Document (EPDD) states that sampling vill begin at the time of initial commercial operation of Unit II and will continue in accordance with the requirements of NPDES Pe rmit No. CA-0004120. Free chlorine concentrations in both the plant service water system and the circulating water system will be measured af ter the chlorization ends but before blowdown begins. Blowdown will not begin until chlorine concentrations are within the limits specified in the NPDES permit. Concentrations will be determined by Amperometric titration or an equivalent method.

NPDES Permit No. GA-0004120 states that free residual chlorine discharge to the Altamaha River must not exceed an instantaneous maximum concen-tration of 0.50 mg/l or an average concentration of 0.20 mg/1.

> 1.4.2 Results and Discussion Samples taken at specified points are analyzed for chlorine concentration by use of an Amperometric titrator, chlorine comparator, or both instu-ments. The following paragraphs explain the circulating water and plant service water chlorination programs.

The circulating water chlorin tion system was placed in the automatic mode of operation in December,1979, and continued to operate in the automatic mode throughout 1980. The blowdown valve to the river was closed-during chlorination, and water was sampled at the cooling tower effluent. Circulating water was chlorinated three times per day for periods of thirty minutes. The free residual chlorine was generally maintained between 0.05 mg/l and 0.20 mg/l during chlorination. An average free chlorine residual between 0.10 mg/l and 0.20 mg/l main-tained for 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months per day provides adequate chlorine concentration and contact time to inhibit the growth of algae or bacteria which might foul heat exchanger surfacea. Chlorination periods may be as long as two hours to assure adequate chlorine contact time during the warm months of the year when chlorine demand is increased.

In June, -1980, a program was set up to calculate the chlorine feedrate necessary to achieve the desired chlorine residual of 0.20 mg/1. The program analyzed the applied chlorine concentration versus the actual chlorine residual. Chlorine residuals were measured by grab samples

-m 1-25

. .- - . ~ . . - . - ~ ~ , - -~,- . -. - . - - . . . . . .

i A

1 o

collected at the water analysis room or off the circulating water

1 s

~ '

pu=ps.. The chlorine feedrate necessary to insure the desired chlorine

' residual-could be predicted by this method. This allowed more control .

of chlorine usage as it is affected by changes in biological load, temperature, and weather conditions.

. The service water system chlorination program is similar to the

- circulating water chlorination program. All service water is diverted to the circulating water flume during chlorination. Chlorinated service water discharge into the fiume while the circulating water blowdown

valve is open ca.n not cause a significant increase in the chlorine residual of the blowdown water. The service water chlorine is depleted

by the circulating water chlorine demand before it enters the blowdown line.

Chlorine -feedrate for the service water system was assessed in June.

1980,' using chlorine demand graphs and computations. This method, when combined with biological monitoring provides specific indications of ,

. system changes. '

~

Plant service water chlorination was changed from twice a day for 45-

- minute periods to. continuous chlorination. The feedrate was adjusted to maintain' free residual chlorine between 0.00 mg/l and 0.01 mg/1.

. Tables 1.4-1 through 1.4-3 show the pounds of chlorine used each month in the sanitary water system, plant. service water system, and the cir-c - - - - culating water system, - respectively. Table 1.4-4 shows the applied

'. free chlorine concentrations for the circulating water system. Chlorine poundage for the service water' system increased sharply for the =onths

- of' November and December. . This increase is attributed to the change

- from' automatic chlorination- to continuous chlorination.

There were two violations of NPDES Permit No. GA-0004120 and the 15P-

!. ETS that cccurred during'1980. -The first violation occurred May'12,.

. .' 1980,iand' involved Unit II. Figure ~1.4-1 documents this violation.

! The:second . violation occurred on: June 19- 1980, and involved Unit I. -

This violation occurred when the circulating water blowdown valve was

opened-during chlorination.' Grab samples collected at the mixing.

U chamber.at,the discharge structure identified a maxi =um concentration.

of 0.90 eg/1. _ This value exceeds the 0.50 mg/l maximum concentration -

allowed. Table 1.'4-5 shows this violation.

. j ..

1 -

Tables 1.4-1 through 1.4-5. sununarize the, chlorination program at Plant

. Hatch during -1980.

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% 's M << ~ 4/ " - .-= b -e y S, 91- fd # w- T p- +s y -

-#5 e * - +4- F kMPy** s" y" y eT' g' *W1 -Mr T'-

l l

l 1

l HNP ANNUAL REPORT TABLE 1.4-1 Monthly Sanitary Water Chlorine Usage Tho usands Pounds of of Gallons Chlorine Maximum Minfece Month Chlorinated Used Cl: mg/I C1, eg/t l January 898.3 7.1 0.90 0.60 February 3659.5 28.3 0.90 0.55 March 2490.0 19.6 1.00 0.60 April 3609.1 45.0 1.45 0.55 4005.5 48.9 1.30 0,95 May June 4266.1 48.8 1.20 1.00 Ju1y 4966.9 54.6 1.30 0.70 O Au9ust 3701.1 39.5 1.40 0.35 September 3412.0 40.3 1.51 0.'82 October 4837.7 60.2 1.44 1.07 6529.2 86.4 1.53 1.07 November 3429.5 41.0 1.90 1.18 December i

l I

L i

1-27

(,

l RNP O ANNUAL REPORT l

TABLE 1.4-2 l Plant Service Water rystem Chlorination Highest Highest Lbs. C12 Lbs. C12 Monthly Monthly Used Used C12 mg/t C12 mg/t Monthly Unit I Unit II Unit I Unit II January 333.4 333.5 0.15 0.30 Fcbruary 383.3 381.1 0.15 0.35 March 633.3 121.2*** 0.29 0.30 April 1755.0 1725.0*** 0.33 0.38 May 1550.0*** 1550.0 0.60 0.75 June 1300.0*** 1318.5 0.68 no data July 879.1 879.1 0.14 0.10

({}

August 729.2 729.2 0.10 0.10 September 624.9 604.3 0.26 0.15 October 656.: 645.8 0.47 0.10 November 2408.3* **' O.34 **

December 6825.0 ** 0.33 **

Started continuous chlorination of Plant Service Water 11/20/80

- .Fuc in cold shutdown, no chlorination in progress

- - Rx in cold shutdown part of month af'i 1-28

. ~ , . - . . . . ~ . . . - - .- . - . _ . - - - . . . - . . . _ - - . _ . - . _ . - - ._

ENP ANNUAL REPORT TABLE 1.4-3 Circulating Water System Chlorination Pounds of Chlorine Used Monthly Lbs. Cl2 Used Lbs. C1 2 Used Unit I Unit II January 5592.9 5862.1 February 5717.1 7332.9 March 10502.1 538.6*

April 15742.9 4971.4*

Mty 10688.6 7208.6*

4 June 3322.6 10117.0*

July 2988.8 10613.4 August 4760.3 3908.2*

September 5388.6 5910.4 October 6257.0 6453.9 Nove=ber 6937.4 Rx Shutdown December 6784.8 Rx Shutdown

Rx in cold shutdown part of the month l

l f

l 1-29 l

i k- .

d

, RNP ANNUAL REPORT

, . TABLE 1.4-4 Circulating Water System Chlorination Average Applied Free Residual C12 M_onth Unit I Unit II January ** **

February ** **

March ** **

April ** **

May ** **

June 1.17 1.54 July 0.75 1.37 August 0.71 0.69 September 0.75 0.69

, October 0.78 0.70 November 0.93 Unit Outage December 0.94 Unit Outage e

- Chlorine demand not in progress l

I l O l-30 i

l

[.

L

()

HNP ANNUAL REPORT TABLE 1.4-5 Combined Plant Waste Streams Maximum Detectable Maximum Detectable C1 mg/l C1 g/l Morthly 2 2 Unit I Unit II January 0.30 <0.10 February 0.12 <0.10 March <0.10 <0.10 April <0.10 <0.10 May* <0.10 <0.10 June

0.90 <0.10 July <0.10 <0.10 August <0.10 <0.10 Dh

\s / September. <0.10 <0.10 October <0.10 0.10 November- 0.10 <0.10 December <0.10 <0.10

Chlorine violations s

w.s 1-31

(\

HNP t~'i Annual Report 1.5 References

1. Carter, H. H. , E. k'. Schiemer, and R. Regier. 1973. The bouyant surface jet discharging to an ambient flow of various depths.

Technical Report 81. Chesapeake Bay Institute, Johns Hopkins University. Baltimore, Md. 64 pp.

2. Edinger, J. E., D. K. Brady and J. C. Geyer. 1974. Heat exchange and transport in the environment. Electric Power Research Institute RE-49 Report No. 14. Palo Alto, Ca.

3. Georgia Power Company. 1975. Hatch Nuclear Plant Unit No. 2 Environmental Report Operating License Stage, Volume 1, Figure 5.1-2. Georgia Power Company, Atlanta, Ga.

.4. Georgia Power Company. 1977. Edwin I. Hatch Nuclear Plant Annual Environmental Surveillance Report for. Calendar Year 1976, Section 1.2. Georgia Power Company, Atlanta, Ga.

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-DATA MISSING DUE TO INSTRUMENT MALFUNCTION 80 - # %* '

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EDWIN I. IIATCil NUCl. EAR PLANT ANNUAL REPORT 198Q Al.TAMAllA RIVER CONTINUOUS TE'MPERATURE MONITOR WEEKLY MAXIMUM AND HINIMUM TEMPERATURES RIVER HII.E 116.2 FIGilRE 1.1-2

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100 300 300 SCALE IN FEtt GEORGJA__P_ORER_CO.MPANY EDWIN I. HATCil Nt! CLEAR PLANT ANNtlAL REPORT 1980 ALTAMAHA RIVER TilERMAL PLUME TRANSECTS

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GEORGIA POWER COMPANY EDWIN I. HATCH NUCLEAR PLANT I ANNUAL REPORT 1980 ALTAMAHA RIVER THERMAL PLUME SURVEY FOR AUGUST 7, 1980 (17:30) FIGURE 1,2-4

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GEORGIA POWER COMPANY EDWIN I. !!ATCH NUCLEAR PLANT ! ANNUAL REPORT 1980 i ALTAMAHA RIVER TilERMAL PLUME SURVEY FOR l AUGUST 11,1980 (16:10) FIGURE 1.2-5

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_GIQRGIA_P_QWER__C.OMPANI EDWIN I. IIATCil NUCLEAR PLANT ANNUAL REPORT 1980 ALTAMAllA RIVER TilERMAL PLUME SURVEY FOR AUCUST 12, 1980 (12:02) _ _ _ _ FIGUIE 1.2-6

2...o m .. caw, o E. I. HATCH NUCLEAR PLANT HNP-760!! See Page 1 .tvis.c- ~o Qaft b O Georgia Power d >=< a V See Page 1 0 11 of 12 DATA SHEET.5 !

CHLORINE CONCENTRATION - TIME LIMIT VIOLATION I DATE AND TIME OF VIOLATION: 5 % O UNIT NUMBER : .2, ' No. of units disch. C1 : I

   @ t'er N                   >2 4  :-0 ;rculaiico               88 C        "

MIIING CHAMB avg C12 : 4. 0: t DATA A.jp gg3gt73 pt"'E"',fD MIIING CHAMB nax C1 2 : 4. O.I . l TOTAL TIME CL 2 DISCHARGED : 105 m:nutes ~ '" d I . N uc.ed , ; LAB SUPERVISOR NOTIFIED : M M lo k SHIFT SUPERVISOR NOTIFIED : %rnoM GatliW [ VAUSE OF VIOLATION:Mir.b Ole cas/M,.nl Pro.,-Ani(!r M 2 b h I ighd, / [q Pnt used Denm Ort 4nn,n4 p P f - s'n ; o H l^., <a n Wm cr ,4;n. rn l iniec4?tn ef ("l g

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    ,/    7     .d y tt  i/)MC ?,// d                     A              h/')       4 &IN                    %
                                                                     /                   /'

Notices havs been sent to the State of Georgia and the NRC per section C of this procedure on or before the below date. DATE LAB SUPERVISOR I DATE *

             $                                           /.        /Nf:*/                         V/$ . 0 GEORGIA POWER COMPANY EDWIN I. HATCH NUCLEAR PLANT O                                                                          ANNUAL REPORT k.)                                                                              1980 CHLORINE CONCENTRATION - TIME LIMIT VIOLATION FOR MAY, 12, 1980.

FIGURE 1.4-1

(~~x, HNP kJ AN'iUAL REPORT CHAPTER 2 RADIOLOGICAL MONITORING TABLE OF CONTENTS Section Title Pace

2.1 INTRODUCTION

2-1 2.2 DISCHARGES TO THE ATMOSPHERE 2-2 2.2.1 AIRBORNE DUST 2-4 2.2.2 AIRBORNE 10 DINE 2-8 2.2.3 THERM 0 LUMINESCENT DOSIMETERS 2-8 2.2.4 MILK 2-13 2.2.5 GRASS 2-14 2.3 DISCHARGES TO THE RIVER 2-17 2.3.1 RIVER 'w'ATER 2-17 2.3.2 CLAMS 2-18 2.3.3 AMERICAN SHAD 2-18 2.3.4 SEDIMENT 2-18 2.4 DISCRARGES TO THE GROUND 2-19 2.4.1 AREA NORTH OF THE TURBINE BUILDING 2-21 2.4.2 CST-1 AREA 2-21 (~'s 2.4.3 OTHER AREA 2-25

 -    2.5       CROSSCHECK PROGPJ01                2-26 2.6-      CONCLUSIONS                        2-31 4

r"*n 2-1

HNP ANNUAL REPORT CHAPTER 2 RADIOLOGICAL MONITORING LIST OF TABLES Section Title Page

                          .2.2-1              ANNUAL SLTMARY OF GROSS BETA ACTIVITY        2-5 IN AIRBORNE DUST 2.2-2              ANNUAL SLHMARY-0F SPECIFIC RADIONUCLIDES     2-7 DETECTED IN AIRBORNE DUST COMPOSITES 2.2-3              TLD LOCATIONS                                2-10 2.2-4              ANNUAL

SUMMARY

OF ON-STATION DOSE ACQUIRED 2-11 BY TLDs REQUIRED BY ETS

2.2-5 ANNUAL SLTDfARY OF ON-STATION DOSE ACQUIRED 2-12 BY TLDs AT SITE BOUNDARY,AND AT 4-5 MILES

                         ~ 2.2-6              ANNUAL

SUMMARY

OF SPECIFIC' RADIONUCLIDES 2-15 DETECTED IN GRASS 2.4-1 ANNUAL

SUMMARY

OF TRITIUM LEVELS IN GROUND 2-22 WATER IN. AREA NORTH OF THE TURBINE BUILDING 2.4-2 ANNUAL

SUMMARY

OF TRITIUM LEVELS IN GROUND 2-23 WATER IN CST-1 AREA.

                         - 2.5-1'          'CROSSCHECK PROGRAM RESULTS FOR AIR FILTERS 2-27
                          -2.5-2              CROSSCHECK PROGRAMRESULTS FOR MILK SAMPLES   2-28 2.5-3           - CROSSCHECK PROGRAM RESULTS FOR GAMMA AND      2-29 TRITIUM ANALYSES IN WATER SAMPLES
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 . _ ~ _ - .         _. _                   _   . . - . . . -     . _ . .                       _ _ _                     _ _ _ _ _ _ _. _

2 O cr ANNUAL REPORT CHAPTER 2 I RADIOLOGICAL MONITORING LIST OF FIGURES 1 Section Title 1 2.4-1 TEST HOLES AND THE DRAINAGE SYSTDi O O 2-111

l x_/ HNP ANN"AL RLPORT

2. RADIOLOGICAL MONITORTSC 2.1 Introduction The<results of the radiological environmental monitoring program for the calendar year 1980 are reported herein. An assessment of the radio-logical impact of the plant's operation upon the environment is provided.

Reports on various related activities are also included. A summary, interpretation, and evaluation of the analytical results obtained fr< m the samples utilized to monitor discharges of radioactive materials to the atmosphere, river, and ground are provided as appropriate in Sections 2.2, 2.3 and 2.4, respectively. The data on samples required by the Environ = ental Technical Specifications (ETS) are tabulated by station or group of stations. As practical, each tabulation consists of: the maximum, minimum and average values of the radiological level: the number of samples (n); and the standard deviction (s). Nominally, summaries are provided for the control and indicator stations on an annual basis; they may also be provided for other periods of exposure as feasible; the calculated minimum detectable difference (MDD) at the 99% confidence level between these two groups is provided for comparison (^^ with the difference in their average values, Li-Lc. Any laboratory analyses performed on environmental samples in addition to those required are also reported. Deviations are per=itted from the sampling schedule required by Table 3.2-1 of the ETS if specimens are unobtainable due to hazardous conditions, seasonable unavailability, malfunction of automatic sampling equipment and other legitimate reasons. Any deviations from the required sanpling schedule are included in the discussions for each particular tyne samole: any significant deviations are noted. The interpretation of results includes, as warranted and as oractical, a comparison with the results found in the preonertional surveillance report and in previous operational surveillance reports. Fherever warranted, an attempt was made to provide a perspective of the results within the framework of regulatory limits, background levels, and plant releases coupled with dilution, dispersion and/or concentratien factors: where feasible attempts were also made to correlate the plant releases with the radiological levels found in the environmental samples. Efforts were made to recognize any data trends; plausibe explanations are offered for any such trends considered to be significant. 2-1 m

A b ESP ANNUAL REPORT Any confir=ed ceasured radiological concentratiens in an environnental sa=pling =edium averaged over any quarterly sa=pling period which exceed the reporting levels given in Table :.2-3 of the ETS are discussed. Explanations are postulated to account for high radiological levels. Regular preoperational tenitoring began in January 1972, following a period of: installation, calibration and checkout of the sa=pling equipment; the develop =ent of sa=pling =ethods and analytical techniques-and the training of personnel. The operational phase of the radiological environmental conitoring progra= began with initial criticality of the Unit 1 reactor on September 12, 1974 Initial criticality of :he Unit 2 rea : tor was achieved on July 4, 1978. In recent years there has been a series of detonations of nuclear devices in weapons tests on =ainland China; there vere also tests conducted during the early months of preoperational conitoring. These occurred as follows: January 7, 1972 March 13,1972 Septe=ber 26, 1976 O Nove=ber 17, 1976 \ ' March 14, 1978 Dece=ber 14, 1978 October 13, 1980 Usually about a week after each of these tests a =arked increase in the radiological level in many of the sarples collected in the ENP environs was noted giving abundant evidence of the appearance of fallout of radioactive caterial from the cloud created by the test. These vere generally corroborated with videspread reports of si=ilar sten increases occurring elsewhere.

   .The first two years of operation (of Unit 1) was a period without significant weapons tests being conducted in the atmosohere, a tire when there was a general decline in the radiological level for cost of the environ = ental sa=ples. The effects of the 1976, 1977 and 1978 veapons test were noted in the annual environ = ental surveillance reports.

The cloud free the October 15, 1950 detonation was scheduled to reach the HNP environs late in the day on October 20 or early on October 21. However, only slight increases in sone of the envi. on= ental sa=ples were noticed on the first pass of the cloud around the world; these increases were within the range of nor=al fluctuations. Significant fallout was not detected elsewhere in this region of the country for this first pass. However, a distinct increase in the radiological levels of many of the.sa=ples colletted during the second week of Nove=ber occurred. The levels were above normal in a nu=ber of sa=ples during the remainder of the year. Like increases were reported by others for this period. 2-2

n. EMP b U A%TAL REPORT In Section 2.5, the results from participation in the EPA Crosscheck Program are provided. In Section 2.6 the chief conclusions drawn frem the radiological environmental monitoring activities including the assessment of any radiological impact of the plant's operation upon the environment are presented. 2.2 Discharges To The Atmosphere The media or pathways sampled to monitor discharges to the atmosphere consisted of: airborne dust, airborne iodine, external radiation, milk and grass. Airborne dust and iodine were collected at air conitoring stations. In accordance with the ETS thermoluminescent dosi=eters (TLDs) for meesuring external radiation were placed at each of the air stations and at three other locations as shown below. Starting with the 1st quarter of 1980,' additional TLDs were placed in the site environs to conform with Revision 1 of the Technical Positior. of the Radiation Assessment Branch of the NRC, dated November 1979. The locations of these new TLDs are described in Section 2.2.3. The locations of the milk sampling stations are provided in Section 2.2.4. Grass sacoles were. collected from plots maintair.ed at Air Stations Nos. 5, 17 and 21. The sector location and distanta as reckoned from the main stack to each of the air stations and to each of the TLD stations required by the ETS

            -are as follows:

b Air Stations No . 1 State Prison ENE 11.1 miles No. 5 Baxley S 9.9 miles No. 9 Dead River Road NE 1.8 miles No.'15 Roadside Park ISn? 0.8 miles

            .No. 17-         Site' Boundary             SE              1.2 miles No. 21?         Site Boundary              WSU             l.0 miles TLD Stations (same'as air stations plus)

No. 119 East Boundary ESE 1.1 miles No. 126 South Boundary S 0.9 miles No. 133 West Boundary W l.0 miles Station Nos. 1-and 5 are the control stations; the other stations are indicator stations. 2-3 g I-G kl

l HNP ; AMTUAL REPORT g~ (_,/ All laboratory analyses of the samples collected to monitor discharge to the atmosphere are cc,tracted to Teledyne Isotopes, Inc. of Uestwood. New Jersey except L. the gross beta counting of airborne particulates which is performed b. he plant; the reading of the TLDs wnich is done by Eberline Instrument Corporation's midwestern facility in West Chicago, Illinois; and the gamma scan of grass which is provided by the Center for Applied Isotope Studies at the University af Georgia in Athens, Georgia. 2.2.1 Airborne Dust The annual summary of the gross beta activity for the airborne dust samples which were collected weekly is presented in Table 2.2-1. The average activity for the indicator stations is seen to be slightly higher than that for the control stations. However the difference between these averages was far less that the MDD. The sample collected on October 6 at Station 9 was not included in the data sumnary because of an air punp failure. The faulty pump was promptly replaced. For exhibition purposes air dust samoles were also collected off and on during the year at the Visitors Center. The results were about the same as those found at the other stations during the same time period. 7 Recent annual reports have clearly pointed out the effects of the nuclear s_j weapons tests on mainland China upon the levels of gross beta activity in airborne dust samples collected in the environs of Plant Hatch. This may be seen by comparing the average weekly ectivity for all stations at which collections were made for each year of operations and for the period of preoperations; these weekly averages are given below in units of fC1/m3 (femto Curie per cubic meter). Period Average Activity Preoperations 140 1974 87 1975 87 1976 137 1977 242 1978 133 1979 38 1980 48 The fairly high level of average activity for the period of preoperations (January 1972 to September 1974) is attributed to the weapons tests in the early seventies. The lower levels of average activity for 1974 and 1975 show the depletion of these levels due to decay or physical

2-4

4 a I i

 !                                                                                                                                                         HNP I                                                                                                                                                   AN'iUAL REPORT
                                                                                                                                                                                                                                                                  \

1 ! I TABLE 2.2-1 ' l 2 ANNUAL

SUMMARY

OF CROSS BETA ACTIVITY IN AIRBORNE DUST t fC1/m 3 Station No. n_ Maximum Minimum Average s 4 Data for Control Statior.s t I

1 52 201 10 50 41 !

5 52 191 4 46 4n i Summary 2 50 46 49 3 i Data for Indicator Stations { l 9 51 303 10 53 55 . 15 52 322 10 50 56 , f 17 52 200 6 45 40 21 52 193 7 47 38 Summary 4 53 45 49 3 Li -- L c =1 MDD = 14 , I i l l 2-5 m

    --      - - . . . . _.    - , - . _ . _ - . . _ _ _ . , . _ . . . . . . _ _ . _ . . _ . _ . . _ _ _ . _ _ _ _ _ _ _ _ , _ _ - , . . _ -                                                      ._.-m._

HNp /~N ANUUAL PEPnRT b removal during a period without significant weapons tests. The level continued to drop into 1976; the average level for the first three quarters of 1976 was 42 fCi/m 3 , then the average junped to 412 fCi/m 3 for the 4th quarter of 1976 as a consequence of the detonations on September 26 and November 17, 1976. The higher level for 1977 shows the carry over of debris from the 1976 tests as well as the effects of the detonation on September 17, 1977. Despite the detonations on March 14 and December 14, 1978, the annual average level for 1978 dropped to about half of that for 1977. The annual average dropped greatly in 1974 to the levels experienced early in 1976. The average level of the gross beta activity through the first in months of 1980 was 32 fCi/m 3 ; the average for the remainder of the year was 137 fC1/m3 whichclearlyshowstheeffgetsoftheOctober15 detonation.The weekly average jumped to 107 fCi/m for the collections made on November

10. The maximum weekly average was 203 fC1/m3 for the collections on December 18. The maximum individual reading for the year, 322 fCi/m3 was found at Station 15 for the December 8 collection. These yearly maxima are more than an order of magnitude below those found in October 1977. By years end the average weekly activity had dropped to 105 fCi/n 3, The activities of specific radionuclides detected in quarterly composites of airborne dust filters by gamma spectral analyres are summarized in

( ') Table 2.2-2 for the entire year. It is seen that generally the average level at the indicator stations was less than that at the control stations; these differences however were less than the MDD. During the first three quarters of the year: naturally occurring Be-7 was present as usual in every sample and Cs-137 was present in almost all of the samples; Ce-144 also appeared in one of the 1st quarter samples but at a barely detectable level. The impact of the weapons test was clearly demonstrated in the 4th quarter results with the presence at all stations of the fission products 7r-95 and Ru-103, and also Ce-141 which is the daughter of a rather short lived fission product. Naturally occurring Th-228 which has been occasionally detected was also detecgedinthe4thquarteratStation15;theactivitylevelwas1.3 fCi/m which set a new all time high for Th-228; the previous maximum of 0.8 fCi/m3 was from a sample collegted at an indicator station in 1976. The 4th quarter level of 225 fCi/m for Be-7 at Station 1 also established a new all time high for that radionuclide; the previous high of 241 fCi/m3 occurred at an indicator station during preoperations. There were no positive readings of Cs-137 during the 4th quarter. / 2-6

    ,f                                                 f" %,                          /~\
                                                       %.J                            % ,'

TABLE 2.2-2 ANNUAL

SUMMARY

OF SPECIFIC RADIONUCLIlsES DETECTED IN AIRBORNE DUST COMPOSITES fC1/m Radionuclide n Pfax Min Avg. Lg-I t, MDD s_ Control Stations Be-7 8 255.0 52.3 93.0 66.4 Zr-95 2 24.1 5.8 15.0 12.9 Ru-103 2 18.2 4.3 11.2 9.8 Cs-137 5 0.8 0.4 0.6 0.1 Ce-141 2 22.6 4.0 13.3 13.2 Cc-144 0 Tli-228 0 B N N 4 Indicator Stations

                                                                                        % .3 Be-7          16       79.1      44.7       58.7    11.0   -34.3    83.0       5 3

Zr-95 4 b.1 3.7 5.2 1.1 -9.8 582.0 !; Ru-103 4 6.7 3.4 4.6 1.5 -6.6 445.0 g Cs-137 11 0.7 0.3 0.4 0.2 -n.2 0.25 H Ce-141 4 5.0 2.6 3.7 1.0 4.6 29.3 Ce-144 1 0.7 0.7 0.7 Th-228 1 1.3 1.3 1.3 66 ,

HMP ANNUAL REPORT

v 2.2.2 Airborne Iodine The charcoal cartridges used for filtering iodine from :he atmosphere were collected weekly and analyzed for I-131 by GE(Li) spectroscopy. The activityfoundineachvalidsampgeduringtheentireyearwasbelowthe LLD which never exceeded 70 fCi/m (the maximun allowed by the ETS). As mentioned in Section 2.2.1, a pump failure at Station 9 early in the 4th quarter made the sample collected on October 6 invalid; all other samples were valid. During 1976, 1977 and 1978 detectable levels of I-131 were found for a period of a few weeks after the arrival of the cloud fr 3 weapons test. The highest level ever found was 21 in 1977. The reportinglevelcalledforbytheETSis900fCi/m}fCi/n 2.2.3 Thermoluminescent dosimeters External radiation is monitored by thermoluminescent dosimeters (TLDs). The total dose acquired by the TLD badges consists of that received when on-station and that received when off-station (that is, in transit, in storage and in handling). It is assumed that a fair estimate of the off-statien component may be provided by the average dose acquired by the extra badges which accompany each batch of badges during shipment and temporary periods of storage, and which are kept in a Pb cave at the r plant while the regular badges are on-station or in transit to their (_) respective stations in the field. The on-station dose is approximated by subtracting the average dose of these "nonirradiated" extra badges from the total dose reading of each regular field badge before normalizing to the desired exposure period. Although the validity of this nethod may be questioned, it was shown in the 1975 report that generally the on-station doses were more consistent throughout the year and provided better correlation between the dose acquired over various periods of exposure than the total doses. The on-station dose is fundamentally of more interest that the total dose because it is closer to what is being sought, which is, the dose that might be acquired by external radiation as a consegunce of gaseous releases from the plant. Each badge in the field is subjected to local background radiations consisting of terrestrial radiations from naturally occcurring radionuclides, cosmic radiations and radiations due to fallout from weapons tests. The large variability in both space and time of each of these components of the local background radiations makes it difficult to discern any part of the on-station dose which can be attributed to plant releases, which part is generaly anticipated as being much smaller. 2-8 7

HNP ANNUAL REPORT 7 U The locations of the TLDs by sector and by distance f ron the main stack in miles are provided in Table 2.2-3. An attempt was nade to place two TLD stations in each sector (in accordance with the branch technical position), oae near the site boundary and the other at a distance of about four or five miles. In addition a TLD was placed at Toombs Central High School in the North Sector at 7.8 miles and there is a TLD at the roadside park in the WNW Sector at 0.8 miles. Suitable locations were not found in the East Sector. The control stations, Nos. I and 5, are respectively ENE at 11.1 miles and S at 9.9 miles. The annual su==ary of the no-station dose acquired by the TLDs which are required by the ETS is presented in Table 2.2-4. The average dose for the indicator stations is seen to be less than that for the control stations. The absolute value of the difference between these values is less than the MDD, meaning that this dif ference is not discernable. The average quarterly on-station doses from the 1st to the 4th quarters were 4.99, 4.86, 3.37 and 5.04 mrem, respectively. This showed a downward trend through the first three quarters; the increase in the 4th quarter might be attributed to the nuclear weapons test. Missing from Table 2.2-4 are the TLDs for Station 119 tr *he 1st quarter, Station 15 in the 2nd quarter and Station 133 in the h zuarter. TLDs ,- are frequently lost due to theft and frequently damaged by vandalism. t l The incidence of missing TLDs in recent years has diminished as a result of hanging the badges in less conspicuous places wherever this is practical. Failure to collect TLDs in such cases is considered as a permissible deviation from the required sampling schedule; the occurrence of only three such incidents during the year is not considered as a significant deviation. The annual summa ry of the on-station dose acquired at the site beundary and at 4-5 miles is presented in Table 2.2-5. The average value for the site boundary is seen to be slightly greater than the average for the 4-5 mile ring. However there is no discrenable difference between these two values. The on-station quarterly dose acquired by the TLDs placed at Station 31 (Toombs Central High School) ranged from 3.48 to 4.28 trem with 3.94 a rem as an average. A comparison of the average quartely on-station dose for all stations at which collections were made during recent years shows the levels to be decreasing. These average values in units of mrem /13 weeks are given below. Year Arnual Average 1975 7.35 1976 7.97 1977 7.18 1978 6.47

       .            1979                                   5.52
    >               1980                                   4.50 2-9 m

m HNP ANNUAL REPORT L_.) TABLE 2.2-3 TLD LOCATIONS Sector Site Boundary 4-5 Mi.les No, miles No. miles N 19 2.0 25 5.0 NNE 26 2.6 28 4.9 NE 9 1.8 29 5.0 ENE 27 1.7 30 5.0 ESE 119 1.1 12 5.0 SE 17 1.2 11 4.3 SSE 13 1.2 10 4.7 S 126 0.9 8 4.4 SSW 14 1.0 7 4.3 SW 16 0.9 6 4.5 WSW 21 1.0 4 4.5 W 133 1.0 3 4.4 WNW 2 1.3 23 5.5 SW 18 1.1 22 4.6 NNW 20 1.7 24 4.8

   .s Additional TLDs N      No. 31 at 7.8 miles, Toombs Central High School ENE    No. 1 at 11.1 miles, Control Station S      No. 5 at 9.9 miles, Control Station WNW    No. 15 at 0.8 miles, Roadside Park b:

2-10

          =                      _ _ _ _ _ . _ . .       __ _ _ . . _ . _ . _ _ .      _ _ . _ . _ _ . . _ . _ . _                           . . _ _

1 .f l I HNP l AN'.TAL REPORT 3 t i TABLE 2.2-4 l ANhTAL SU!!}L\RY OF ON-STATION DOSE ACQUIRED BY TLDs REOUIRED BY ETS ! cre=/13 weeks Station No. n_ }!aximum_ Minimum Average s,

                                ~ Data for Control Stations l

1 4 7.13 3.43 5.40 1.66 S 4 5.67 4.09 4.69 0.70 L , Summary 2 5.40 4.69 5.04 0.51 Data for Indicator Stations ! 9 4 4.31 3.43 4.30 0.41 4.31 1.53 3.13 1.44

15 3 17 4 5.92 4.16 5.33 0.80 ,

21 4 4.99 1.54 3.55 1.46 119 3 5.31 4.07 4.79 0.64 126 , 5.31 4.11 4.66 0.56 133 3 5.70 5.31 5.56 0.22 f l Summary 7 5.56 3.13 4.44 0.90 i

Li-L =e -0.61 MDD = 1:30 l , P 2-11 L e l

II v TABLE 2.2-5 ANNUAL SUSD!ARY OF ON-STATION DOSE ACQUIRED BY TLDs AT SITE BOUNDARY AND AT 4-5 MILES mrem /13 weeks Station No. n Maximum Minimum Average s_ Site Boundary 19 3 5.70 3.43 4.81 1.21 26 4 4.99 3.43 4.17 0.79 9 4 4.31 3.43 4.03 0.41 27 3 7.39 5.33 6.21 1.06 119 3 5.31 4.07 4.79 0.64 17 4 5.92 4.16 5.33 0.80 13 3 4.28 2.80 3.52 0.74 126 4 5.31 4.11 4.66 0.56 14 4 7.03 3.56 4.84 1.53 16 4 3.48 2.80 3.02 0.31 21 4 4.99 1.54 3.55 1.46 133 3 5.70 5.31 5.56 0.22 2 4 5.67 1.53 4.38 1.92 18 4 7.56 3.43 5.30 1.76 ,e 20 4 5.67 3.43 5.30 1.76 , . - ) Summary 15 6.21 3.02 4.63 0.86 4-5 Miles 25 3 2.95 2.26 2.69 0.37 28 4 4.31 1.53 3.37 1.27 29 4 3.97 5.34 7.12 1.60 30 4 7.75 4.71 6.30 1.36 12 4 4.31 2.80 3.87 0.72 11 4 5.34 4.70 5.00 0.26 10 3 7.03 2.16 4.63 2.44 8 4 4.31 1.53 3.22 1.19 7 4 2.95 0.25 1.88 1.29 6 4 7.13 2.80 5.09 2.00 4 4 4.99 0.25 3.07 2.00 3 4 4.99 1.53 4.05 1.69 23 4 4.99 2.80 4.20 0.97 22 4 7.03 4.07 6.01 1.32 24 3 6.35 5.34 5.80 0.51 Summary 15 7.12 1.88 4.42 .1.47 LSB- L 4-5 " 0.21 MDD = 1. 22 a-2-12

ICT (} ANNAUL REPORT 2.2.4 Milk Milk samples were collected biweekly as available from three locations as follows: Station Tyne Azimuth Distance (degree) (miles) Prison Control 067 11.0 Sellers Indicator 226 7.5 Williamsons Indicator 029 3.2 No sample was availabic at Williamson on April 28. Gamma isotopic and I-131 analyses were performed on each sample. This is the third year for the gamma scans. There were three positive indications of I-131 during the year. These were as follows: Collection Date Location Level (pCi/1) -('S 11/24 Prison 0.69

\-          11/24                      .Williamsons                 1.80 12/08                       Williamsons                 0.71 Two of these are seen to be only marginally detectable. These cositive readings are attributed to the nuclear weapons test. Levels have ranged from 0.095 to 88 pC1/1 in past years.

The I-131 analysis for the sample collected at the prison on February 4 had an LLD of 1.0 pCi/1; Table 3.2-3 of the ETS requires an LLD of not greater than.0.8 pCi/1. The package containing this sample was damaged in transit and only 600 ml were available for analysis. The nominal sample size _for counting is one liter; a one gallon sample is shipped to

     -the contract laboratory.

The gamma scans showed naturally. occurring K-40~present in each sample at levels which varied between 914 and 1930 pCi/1. These levels are about the same as those found previously. The gamma scans also showed'the fission product Cs-137 in sample from each station at about the .same levels and with about the same overall frequency as'that found previously. The results in pCi/l for each station are summarized as follows:

     - Station.       n/no      . Maximum         Mini =un         Average

['T 1/26- '15.4 15.4 15.4

's '

Prison Sellers 14/26 36.4 8.7. 16.9

     -Williamsons-    11/25-       17.5'            -8.0            12.5 2-13 s

HNP ANNUAL REPORT Y The ratio, n/no, the number of positive results to the number of analyses performed, shows a relatively high frequency of positive results for Sellers dairy and a low frequency at the prison. With the required LLD at 15 pCi/1, most of the positive measurements are only marginally detectable. The highest level given above is considera1y less than the reporting level of 70 pCi/l given in Table 3.2-3 of the ETS. The positive levels found during the past two years ranged from 8 to 57.1 pCi/1 with the average values for the stations ranging from 11.5 to 18.3 pCi/1. During preoperations, Cs-137 was measured in milk by chemical separation technique; the levels ranged from 2 to 60 pCi/1 with an average value of 19.3 pCi/1. All of these positive indications of Cs-137 in milk, those during preoperations as well as those during operations, are attributed to the weapons tests. The quantity of Cs-137 released f rom operation of the plant would have to be increased by orders of magnitude before it could be detected in milk samples. The LLD for Ba-La-140 required by Table 3.2-2 of the ETS is 15 pCi/1. The lab report for the ga=ma scan showed a LLD of 20 pCi/1 for Ba-140 for the sample collected at the prison on November 24. This sample was delayed in transit,taking 10 days to reach the contract laboratory. The half life of Ba-140 is only 12.8 days. This is not considered a deficiency since the lab reports provide the LLDs to only one place accuracy: thus 15 pCi/1 is equivalent to 20 pCi/1.

  ~s   The ETS require that a survey be conducted annually to determine the

() location of all milk animals within 3 miles of the plant stack in each of the 16 azimuthal sectors. For any of the 16 sectors in which milk animals are.not found within 3 miles, the annual survey is expanded to locate the nearest milk animal within 5 miles in that sector. A milk animal is a cow or goat which is producing milk for human consummption. On April 30 and May 1, the milk anical survey was conducted. The only milk producing animal found was the cow at Williamsons which is presently being sampled. 2.2.5 Grass Gamma isotopic analyses were performed on each of the grass samples collected monthly from the three sampling stations. Positive identi-

      ' fication of several radionuclides was determined. These have been separated into four groups as follows:

(1) Be-7 and K-40; (2) Zr-95, Nb-95, Cs-137, La-140, and Ce-141 (3) Pb-214 and Bi-214; and (4) T1-208, Pb-212 and Ac-228. Only in the second group are the man-made radionuclides. An annual summary of the activities of these radionuclides is provided in Tab 1 ? 2.2-6. It is'Seen that there are no discernable differences between the average value's at the indicator stations and the control station. (, / 2-14 9

i U jf( , .

                                        ,                              TABIE 2.2-6.
                                            ' ANNUAL

SUMMARY

.0F.. SPECIFIC RADIONUCLIDES DETECTED IN GRASS pCi/kg' wet

                     .Radionuclide               ; n,      Max         Min ~       Avg           s_        L g-Lc MDD
                                      ~

Control Station Be-7 11 3280 '121 1230 900

                            ~K-401                 12     ~8450        2450        5400         1980
                            ~Zr-95':                 1;     ~40           40          40
 -                          :Nb-95,                .1        45          '45'        '45 '

Cs-137 12. 2330 -94 916 836

                            .La-140                ' 1'      24           ~2 4'       24,
                             ' Ce-141.                I      17           17.         17 TI-2081               0                                                                 P,-

Pb-212 '1. 18. 18 18 y

                            . Pb- 21 *e -          - 4'. 111           22          71          43                   S=

ef . Bi-214

                            .Ac-228 7

il-222 62 23' 62 85 62 66 [$ y 1:- P

                     ; Indicator Stations.                                                                             4, Be             722-      3840          160       1460         1120         230  1070 K              '24     18400'       2190        6260-        3360        860   2880 Zr-95                 2       70           55          63        10.61         23 Nb-95                 2       84           47          66        26.16         21
                              ~Cs-137              14       969           21        208          275       -708    757 La-140~               2      '28           25          27         2.12          3 Ce-141                2       30           20          25         7.07          8
                            .T1-208                .4        37           20          28            9
                            -Pb-212-                 6       86          '48-         61           14         43 Pb-214-               4      115           32          70           37         -1   105 Bi-214~             13       184           29          79          40          -6    67
                            .'Ac-228                .9 . 173           55        113            38         51 d'                   _

D (

HNP ANNUAL REPORT K-40 was detected in every sample. Be-7 was detected in nearly every sample. The levels were about the same as those fr d previously except for the collections at Station 21 in November and December where the K-40 levels were 18400 and 11000 pCi/kg wet, respectively. The November reading established a new high for K-40 which is almost twice the previous high reported for 1978. These high values are attributed to the nuclear weapons test. As usual, the fission product Cs-137 was detected in around 707 of the samples and nuch higher icvels were f ound at the control station than at the two indicator stations. Overall the values were higher than those found previously. The report level for the average quarterly value is 2000 pCi/kg wet. The levels at Station 5 in June, September and October were respectively 2330, 2050, and 2130 pCi/kg wet. The average quarterly value never exceed the report level. This station which is nearly 10 mis from the plant has a history of high Cs-137 levels. The collection for June established a new high for Cs-137. This high value was confirmed by a recount; a value of 2410 pCi/kg wet was measured in the recount. The previous high of 1680 pCi/kg wet was found in a sample collected ac Station 5 in October 1979. The fission products Zr-95, Nb-95, La-140 and Ce-141 suddenly appeared in all of the samples collected in December. Their apperance is attributed Each of these except Zr-95 were found during 1978 (_ ) to the weapons test. and attributed to the weapons tests. The levels are generally within a few times their LLDs. The ETS requires an LLD of not greater than 25 pCi/kg wet for I-131. This limit was exceeded slightly on four occasions as follows: Collection Date Station LLD July 16 17 27 October 16 5 36 October 16- 17 28 October 16 21 26 These deviations are not considered as significant. Each of the radionuclides in the last two groups is a primordial nuclides: those in the second to last group are from the Uranium Series; those in the last group from the Thorium Series. Each of these primordial nuclides had been found in soil samples taken from each of the grass plots on November 10, 1977. The levels are on the same order of those found preciously. C) 2-16 s.

HNP (j ANNUAL REPORT The sample collection at all of the stations on November 11 and December 19 vere 38 days apart. This spread in the collection dates constitutes a deviation from the ETS in that Table 3.2-1 requires monthly collections for grass samples; monthly is defined as once each calendar month at intervals of 30 days + 6 days. A closer watch of the sampling schedule should prevent further deviations of this kind. This deviation is insignificant. 2.3 Discharges To The River The ETS require the sampling of water, clams and sediment from River Station 170 and 172 which are about 1 1/2 miles upstream and 2 1/2 miles downstream respectively. The upstream station serves as the control station and the downstream station serves as the indicator station. The ETS also require the sampling of American shad from the area of the discharge structure. The ETS require a gamma spectral analysis of each sample. This analysis is performed on only the edible portion of the fish and clam samples. A tritium analysis is also required on quarterly composites of river water for each station. All of these analyses are performed by Teledyne Isotopes, Incorporated of Westwood, New Jersey.

   ._     2.3.1   River Water

\ I

River water is collected using automatic sampling machines; small samples are collected at intervals which are on the order of an hour. Water thus collected is picked up monthly; quarterly composites are composed of the monthly collections. There was only one positive result for the entire year on the gamma scans of the monthly collections. Th-228 was detected at a level of 14.8 pCi/l at Station 172 in December. Its LLD is nominally 10 pC1/1. Th-228 was also detected at a level of 24.5 pCi/1 in the 4th quarter composite for this station; gamma scans of the quarterly composites are not required. Only scant results have been obtained in the past with this analysis. During preoperation traces of K-40 and radon daughter products were detected occasionally. Since operation began, K-40 and Th-228 were detected in the 3rd quarter of 1974, and Ce-141 was detected during the 4th quarter of 1975. The positive results in units of pC1/1 for the tritium analysis of the quarterly composites is summarized as follows for the control and indicator station respectively: n Max Min Avg s L i-Lc MDD 4 380 140 218 113 4 660 200 358 209 140 440 2-17 m

HNP ANNUAL REPORT Although the average readings for the indicator station was greater than 7z (_) that for the control station, the difference between the average values for the two stations is much less than the minimum detectable difference which indicate there is no discernable difference between the values obtained at the two stations. The levels found in the 3rd quarter at each station were very high co= pared to a previous all time high of 390 pCi/l found at an indicator station in 1978. These samples were recounted for confirmaticn. The level of 390 pCi/1 was also found in the sample taken at S;aticn 172 in the 2nd quarters. The release levels during the 2nd and 3rd quarters were normal. No explanation was found for these relatively high levels. A survey was conducted downstream of the plant on September 3 in accordance with the ETS to determine if water from the Altamaha River was being used for drinking purposes. As in all previous surveys, no intakes for drinking water were observed. If river water should become used for drinking, the ETS require sampling and analyses of the drinking water are required. 2.3.2 Clams The ETS require a semiannual sampling of asiatic clams from the two river stations. Collections were made on June 17 and December 2. The gamma spectral analysis showed positive levels for the K-40 in the June collections at both stations. These levels were typical of those found previously for this raturclly occurring radionuclide. (N (,) 2.3.3 American Shad Because of its commercial importance, the ETS require that American shad be collected annually during the spring spawning period. Naturally occurring K-40 was the only radionuclide detected in this single sample. The level was 3.31 pCi/gm wet which is about the same as that found previously. Only K-40 has been found in previous samples of American shad. The ETS define annual as once per calendar year at intervals of 12 calendar months + 30 days. The collection in 1979 was on April 26. The collection in 1980 should have been between March 27 and }by 26. The collection was made on March 7 to assure that a sample would be obtained during the spring spawning season which depends upon river water temperature. Under these circumstances this minor deviaton from the ETS is considered as permissible. 2.3.4 Sediment The positive results of the gamma scans on each of the annual samples taken from the control station and from the indicator station are presented below in units of pCi/gm dry. Radionuclide Station 170 Station 172 Be-7 2.94 ! K-40 8.74 Cs-137 0.24 Ra-226 1.63 Th-228 1.37 2-18 ,

HNP ANNUAL REPORT

 / N
 '<s Y The levels of each of these radionuclides are typical of and within the range of those found in past years. All are naturally occurring radionuclides except for the fission product Cs-137.

2.4 Discharges to the Ground As reported in previous annual reports and also by LER No. 50-321/1979-021 (including its revisions, quarterly updates and other supplements) tritiated ground water is located in two separate and hydraulically unconnected areas of the plant yard, namely, the area north of the Turbine Building and an area centered just south of the Condensate Storage Tank for Unit 1 (CST-1). Also related in these previous reports was the identification of the extraneous source of tritium for each of these key areas, and the elimination of one of these sources, that for the area north of the Turbine Building. The source of the tritium in the CST-1 area is the leakage from the condensate transfer pumps and associated plumbing. During 1980 dykes were erected around the CST-1 pumps and also around the CST-2 pumps to preclude water fro- any future leaks from entering the ground. This report provides data summaries along with related activities and significant events for 1980. A great deal of background information and a complete history of the monitoring activities and results were presented 7 in detail in the previous reports. Efforts were made to minimize the

 '#    repetition of such information and data here.

A portion of the tritiated ground water slowly makes its way to the river via the drainage systems; the tritium levels in these continuous releases are a few orders of magnitude below the high levels found in the plant yard and several orders of magnitude below that permitted by regulation. The offsite doses due to these releases are miniscule. Thus, there has been no significant impact upon the public's health and safety due to these high onsite tritium levels. There are three distinct water zones underlying the site: a water table, a local aquifer and a regional aquifer. Aquicludes separate and hydraulically isolate these zones from each other. The vast regional aquifer whose top is a few hundred feet below plant grade is not hydraulically connected to surface waters in the vicinty of the site. The shallow local aquifer is separated from the regional acquifer by an aquiclude which is about 100 feet thick; the top of the local aquifer is roughly 65 feet below the grade of the plant yard; it is hydraulically connected to surface waters in the plant environs. The foundations for some of the buildings at the plant enter but do not rupture the aquiclude between the local aquifer and the water table; this aquielude is 40 to 50 feet thick. The water table which is charged by the percolation of precipitation through the soil is unconfined. In the plant yard the water table more or less extends from 10 to 20 feet below grade.

2-19 e L

HNP p ANNUAL REPORT V The water table, according to the natural terrain, will drain both in a northerly direction toward the river, and also in an easterly (downstream) direction toward a swamp area which drains to the river. An analysis of the water levels from various shallow test holes about the plant yard shows that ground water flow in the water table has a strong local flavor. This phenomenon is attributed to the excavations performed during construction of the plant and the field routing of water pipes and electrical conduit runs. These pipe and conduit runs are supported by compacted sand; any water introduced nearby will follow a path along the run, as tnis is the path of least resistance. Moreover, it is likely that some of the excavations formed pockets in che aquiclude between the water table and the local aquifer in which ground water accumulates. Movement of water out of these pools might occur only when the pockets fill and overflow. Two separate subsurface drainage ditches, whose outfalls are at about 25 feet below grade, provide a system for controliing the level of the water table. This network of subsurface ditches encircles the complex of the main plant buildings - the service, turbine, reactor, control, and radwaste buildings for each unit. Roughly 70% of this encirclement is serviced by Subsurface Ditch No. 1 (SSI) whose outfall is north of the plant; SS2 whose outfall is east of the plant services the remainder of the encirclement. 7 (_) The surface drainage system includes a network of catch basins connected by underground ditches. Runoff from the building roofs and the plant yard flow into these catch basins. The outfall for the surface ditch north of the plant is referred to as Yard Drain No. (YD1); YD2 is east of the plant. These two surface ditches are separate from each other. Ground water samples are sent to the center for Applied Isotope Studies at the University of Georgia in Athens, Georgia. A liquid scintillation detector is used to determine the tritium content. Results are usually obtained within a few weeks; LLDs of about 100 pC1/1 are attained. In subsequent subsections, data summaries for the year are presented for the ground water samples taken from the locations associated with each of the two key areas and for other locations. Nearly all of the locations are shown on Figure 2.4.1. For each sampling location, the maximum and minimum tritium levels are presented along with an average value of the positive readings and the ratio of the number of positive readings to the total number of readings. The annual average was determined by averaging the quarterly averages. Other information or datum associated with the particular area may also be presented. Where warranted an assessment is provided for specific sampling locations. Any significant events or activities associated with these areas are discussed. 2-20 e

__. ___ _ -.. __ . _- =__ . _ _ _ _ _ _ _ _ _ _ _ . _ 1 HNP

 ,                                                        ANNUAL REPORT
                       ~

[ 2.4.1 Area North of the Turbine Building l The cause of the high tritium levels in this area was eliminated on March 21, 1979 as has been previously reported. It was discovered that process water had been entering the ground a few yards from Pl7B through an open ended half inch line buried to a depth of about 8 inches. Sampling locations affected by this extraneous source of tritium are: test holes N9B, P15B, P17A, P17B and T2 through T8; outfalls SS1 and YD1; and manholes MH10 and MH11. Test hole P17A taps the local aquifer, all other locations tap the water table. The two manholes provide ! access to Subsurface Ditch No. 1. A data summary of the tritium levels i for each of these locations is persented in Table 2.4-1. Overall the levels in this area are on the decline. The main body of the tritiated water appears to have shifted from P17B to T4 and to N9B.

The level at P17B has dropped by about a factor of 20 from its high of 3.0 E5 pCi/l in February 1979. In August of 1979 the highest readings of about 2.0 E5 pCi/1 were being obtained at T4; in the fall of 1980 the levels were lower by nearly a factor of 60. In 1980 the levels at N9B

_l had become predominant; in May a peak value of 2.1 E5 pCi/l was attained; by year's end this level was halved. Adjacent to N9B are test wells T3 and T8 where the readings are also high but substantially lower than N9B; the levels at all three of these locations appear to fluctuate in j

        ..           unison.

7-m < '\- Migration to the river via the subsurface drainage system can be ' traced by observing the levels at MH10, MHil. The level at SS1 has been fairly constant over the past two years. The highest measured quarterly average concentration during the year at SS1 was 1.76 E3 pCi/1; this is equivalent l 'to a dose of 0.045 mrem. This dose estimate is very conservative because . .it assumes that some individual were to obtain all of his drinking water directly from the outfall which is generally inaccessible. The quarterly dose limit resulting from liquid release as established by Appendix I to 10 CFR 50 is 1.5 mrem. The average annual concentration of tritium for drinking water in community water systems is required to be less than 2 + 'E4 pCi/l according to EPA's National Interim Primary Drinking Water Regulations, 40 CFR 141.16. The highest measured concentration in an individual sample released to the_ river during the year was for the

                   -collection at SS2 on February' 20; the level was 5.74 E3 pCi/l which is more than a factor of 500 below the MPC for tritium in' unrestricted

! areas as given in 10CFR20. 4

                   '2.4.2      CST-1 Area The CST-1 area is centered about test hole.P16 which is located about 5 yards south of the CST-1 dyke and several yards east of the condensate transfer pumps. A pool.of tritrated water appears to be trapped in.a
                    . pocket of the aquielude which' underlies this area. Sampling locations affected by this pool are: test holes Al, N7A, N10B, NilB, P16, T10 through T16, and T18 through T20; outfalls SS2 and YD2;~and catch basins' PY12, PY16 and PY24. . Test hole N7A taps the local aquifer, all other 1 ' (N ~~SL locations tap the water table. A data summary of the tritium levels for each of these locations is presented in Table 2.4-2.                 This data should-be reviewed in- the . light of.- related events and _ activities.
    ~

2-21

   .                                  HNP pd                              A:TXUAL REPORT TABLE 2.4-1 ANNUAL

SUMMARY

OF TRITIUM LEVELS IN GROUND WATER IN AREA NORTH OF THE TURBINE BUILDING pC1/1 Location n/n Max Min Avg. N9B 27/27 2.08 E5 1.06 E5 1.57 E5 P15B 5/5 2.32 E3 6.22 E2 1.01 E3 Pl7A 4/5 6.34 E2 < l.00 E2 5.09 E2 P17B 15/15 2.98 E4 3.74 E3 1.67 E4 T2 9/9 1.93 E3 9.01 E2 1.46 E3 T3 27/27 6.11 E4 1.83 E4 3.82 E4 T4 21/21 1.43 E5 1.02 E3 3.53 F4 T5 5/5 1.81 E3 7.45 E2 1.01 E3 T6 8/9 3.03 E2 - 9.20 El 1.49 E2 T7 1/2 1.29 E2 c 8.30 El 1.29 E2 T8 26/26 1.97 E4 9.25 E3 1.36 E4 SSI 24/24 2.18 E3 6.90 E2 1.30 E3 YD1 9/10 1.09 E3 ( 1.17 E2 2.95 E2 MH10 12/12 1.35 E4 3.79 E3 8.46 E3 MH11 10/10 3.78 E3 5.88 E2 1.81 E3 2-22 s

HNP ) v ANNUAL REPORT TABLE 2.4-2 ANNUAL SUlefARY OF TRITIUM LEVELS IN GROUND WATER IN CST-1 AREA pC1/1 Location n/no Max Min Avg. Al 3/3 3.58 E3 5.90 E2 1.97 E3 N7A 13/13 7.34 E3 2.66 E3 4.09 E3 N10B 4/4 6.65 E2 2.86 E2 5.34 E2 N11B 2/2 6.19 E2 4.72 E2 5.46 E2 P16 13/13 1.28 ES 6.55 E4 1.02 E5 T10 13/13 5.03 E3 1.78 E2 1.74 E3 Til 12/12 5.64 E3 5.72 E2 2.75 E3 T12 14/14 1.57 ES 3.70 E3 2.77 E4 T13 13/13 1.08 E5 1.16 E4 3.25 E4 T14 8/8 3.60 E4 6.88 E3 1.61 E4 T15 7/9 2.28 E2 28.70 El 1.59 E2 T16 8/9 5.94 E2 c8.60 El 3.72 E2 T18 18/18 1.05 E5 5.21 E4 7.15 E4 ex T19 8/8 1.54 E5 2.12 E4 5.92 F4 () T20 SS2 27/27 23/24 5.72 E4 5.74 E3 1.85 E4 c 7.5 (1) 3.51 E4 3.98 E2 YD2 18/19 3.54 E2 :8.2 (1) 2.17 E2 PY12 7/7 3.31 E3 1.22 (1) 1.07 E3 PY16 3/3 4.94 E2 9.80 (1) 2.51 E2 PY24 10/10 1.09 E4 6.42 (2) 4.48 E3 n

2-23

HNP ANNUAL REPORT L,J On December 3, 1979 about 450 gallons of water from a CST-1 pump leaked to the ground. This caused a sudden increase in the tritium levels at Al, PY12, T12, T13 and T19 which carried over into 1980. At other locations, P16, T10, Til, T14, T16, T18 and T20, the impact was less drastic and delayed for a month or so. On February 4, 1980, about 22 gallons of condensate water leaked to the ground from one of the CST-1 pumps. The tritium level in the water from this leak was 9.64 E4 pCi/1; the gamma activity of this water sample was 0.48 pCi/ml. Subsequent samples taken from the spillway beneath this pump on March 1 and 13 had tritium levels of 1.50 E4 and 1.90 E3 pCi/1, respectively. Soil samples were collected around the concrete slab upon which the pumps are mounted; an isotopic analysis was performed on each sample; the average results were: Mn-54 5.16 pCi/g Co-60 6.02 pC1/g Zn-65 7.46 pCi/g Cs-134 11.9 pCi/g Cs-137 8.18 pCi/g The contaminated soil was placed in drums for shipment to a licensed low level burial ground. On February 16 about 55 gallons on condensate water from one of the CST-(~) 2 pumps leaked to the ground. The tritium level in the water from this leak was 6.88 E5 pC1/1. An isotopic analysis of this sample showed levels for F-18 and Xe-135 at 3.48 and 0.13 pCi/ml, respectively. Subsequent samples taken from the spillway beneath this pump on March 1 and 13 had tritium levels of 8.26 E4 and 5.72 E2 pCi/1, respectively. Soil samples from the area showed no detectable activity. The tritium reading at SS2 jumped from 1.88 E2 pCi/l on February 6 to 5.74 E3 pCi/l on February 20; the level in a sample collected on March 2 was 2.74 E2 pCi/1. It is highly unlikely that this high reading is due to the pump leakages on February 4 and 20 due to the short time frame and low volume of release. Although the pump leakages on December 3, 1979 would be a more probable cause, the singleness of the high reading gives reason to believe that it had likely become inadvertently contaminated. To prevent or reduce further releases to the ground, such as those that occurred on February 4 and 16, temporary confinement measures cbout the transfer pumps were made until the permanent fix could be effected. The temporary measures consisted of: the installation of metal reflectors to direct any spraying from the pumps or associated plumbing to the slab; the addition of curbing around the slab to prevent runoff to the ground; and the installation of a holding tank which is connected to the slab by a spillway to catch any water that overflowed the pump basin.

  ~Y 2-24

IDiP ANNUAL REPORT r~l (J The cre? tion of a dyke around the condensate transfer pumps for each of the CSTs was completed at midyear. This will preclude the water from any subsequent leaks from reaching the ground. The water so contained f rom any such leaks will be drained to radwaste. The extraneous source of tritium in the CST-1 area was eliminated by the completion of these structures. It should be noted that test hole T19 was destroyed in the erection of these dykes. The levels in the CST-1 area were generally high early in the year as a result of the pump leakages in December 1979 and February 1980. There was a significant general decline by years end. 2.4.3 Other Areas The other areas from which ground water samples have been collected have not been contaminated with tritium. These locations tap the regional and local aquifers, as well as, the water table. A well at Deen's Landing and Deep Wells No. I and 2 tap the regional aquifer. Deen's Landing is about 2 miles east of the p.1 sic; it is located on the river (upstream). Deep Wells No. 1 and i are onsite. Only one sample was collected at each location. Deep We.1 No. I had the only positive reading, 2.1 E2 pCi/1. .o ( ,) The local aquifer is tapped by test holes N2A, N8A and PISA. One sample was collected at N2A and at PISA while four samples were collected at N8A. None of these samples had detectable levels of tritium. The water table was tapped by seven test holes. Detectable results were obtained for all samples except the two collected at P102A. The number of sample collected at each of the other test holes and their maximum and minimum levels in pC1/1 were as follows: Location n Max Min Al 4 3.00 E2 2.21 E2 A3 3 3.52 E2 1.30 E2 N2B 1 5.29 E2 5.29 E2 NSB 3- 3.00 E2 1.93 E2 N8B 3 1.80 E2 1.39 E2 P108A 2 3.23 E2 2.46 E2 All of these readings are considered as background level or marginally above background.

2-25

HNP ANNL'AL REPORT b) 2.5 Crosscheck Program Laboratories performing the analyses required by the radiological environmental monitoring program as delineated in Table 3.2-1 of the ETS participate in EPA's Environmental Radioactivity Laboratory Intercomparison Studies (Crosscheck) Program conducted by the Environmental Monitoring and Support Laboratory in Las Vega, Nevada or in an equivalent program. Only some of the sample media / analyses combinations listed in the ETS are covered by the Crosscheck Program. Relevant results are considered to be those anlayses for sample media which are the same as those required as a part of tha radiological environmental monitoring program. All relevant media / analysis combinations were conducted by Teledyne except for the gross beta analysis of air filters conducted by HNP. Because of the time lag involved in obtaining reaults from the EPA and the subsequent reporting of these results by the contract laboratories, not all of the 1980 results were available. The results reported herein also include the 1979 results which were not available last year. Any results of determinations in the Crosscheck Program which do not show " Agreement" using the NRC's " Criteria for Comparing Analytical Measurements" as described in Attachment I were investigated to determine the cause of the disagreement; corrective actions were taken as warranted. The results of any such investigations and corrective actions are also reported herein. ('J

Since all of the results reported herein are presented in the same tabular format, an explanation of the column headings is provided.

       "Date" meane the collection date given by the EPA.      "Known" refers to the EPA known value + one standard deviation, s.      " Result" is the average value measured by the laboratory + experimental s.      " Resolution" is
                                                                     " Ratio" equals determined by dividing the known value by its s value.

the " result" (value determined by the laboratory) divided by the "known" (value determined by EPA). an explanation is provided in the text for any comparisons not showing " Agreement." The results of the gross beta and Cs-137 analyses of air filters are given in Table 2.5-1. The gross beta analysis for the December 28, 1979 collection shows only "Possible Agreement". A T1-204 efficiency rather than a Sr-90 efficiency was inadvertenly used. The EPA laboratory in Montgomery, Alabama had recommended that a T1-204 efficiency be used for cirborne dust examples ir this area of the country. " Agreement" was obtained when a Sr-90 efficiency was used. The results of the I-131 and the Cs-137 analyses in milk samples are listed in Table 2.5-2. The results of these gamma and tritium analyses in water samples are listed in Table 2.5-3. Teledyne did not participate in the tritium in water program prior to April 1980. It should be noted that whenever the EPA known value is zero or the laboratory determined result is a less than value, a comparison by the NRC criteria cannot be () made since the ratio cannot be determined.

%/

2-26 e [

  -w                                       }typ ANNUAL REPORT TABLE 2.5-1 CROSSCHECK PROGRAM RESULTS FOR AIR FILTERS pCi/ filter Date      Known                  Result       Resolution Ratio Gross Beta 12/28/79  29    5                68.0      3     5.8     2.34 3/28/80   4115                   39.0 1 0        8.2     0.95 6/27/80   28 1 5                 30.7 i 1        5.6     1.10 9/26/80   10 1 5                 21    11        2.0     2.10 12/19/80  19 i &7                20    11        2.2     1.05 Cs-137 8/10/79   1015                   11    11        2.0     1.10 10/05/79  12 1 5                 14    13        2.4     1.17 12/28/79  1015                   13    13        2.0     1.30 3/28/80   20    5                31        6     4.0     1.55 p,  6/27/80   12 1 5                 16    12        2.4     1.33 V

l 2-27 , o f

    .___.._ ..            . . - . ~ _ _ . . - _ _ .                 _          _ - - _ _ .                     _ - - . _ - - - . - - - . - - . _                                  . . _ _

.j - 0 i i j HNP j ANNUAL RETORT l l TABLE 2.5-2 CROSSCHECK PROGRAM RESULTS FOR MILK SAMPLES l

Date f_ py Results Resolution Ratio i I-131 l

l 9/27/79 1715 18 1 3 3.4 1.06 11/02/79 673 1 32 553 1 55 21.0 0.82 l 1/25/80 0.01 + 0.1 48 0.1 l 4/25/80 33 + 5 23 + 2 6.6 0.70 i l 7/25/80 0 <3 ~ Cs-137 9/27/79 12 1 5 13 1 1 2.4 1.08 11/02/79 4915 54 1 4 9.8 1.10 1/25/80 40 5 50 4 8.0 1.25 . 4/25/80 28 1 5 34 1 3 5.6 1.26 (

7/25/80 35 + 5 37 + 7 7.0 1.06

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_ _ _ _ _ _ , _ . . _ . _ . . - . _ _ _ _ _ . _ . _ _ ~ . _ _ _ . . _ _ . . _ _ . . _ . . _ _ . .

HNP rw ANNUAL REPORT b TABLE 2.5-3 CROSSCHECK PROGRAM RESULTS OF GA>S!A AND TRITIDI ANALYSES IN WATER SAMPLES Date Xnown Results Resolution Ratio Cr-51 10/05/79 113 + 6 136 + 28 18.8 1.20 2/01/80 101 I 5 116 I 24 20.2 1.15 6/06/80 13 I 5 <70 2.6 10/03/80 86 } 5 82 + 37 17.2 0.95 Co-60 10/05/79 6+5 ', 6 1.2 2/01/80 11 I 5 13 + 3 2.2 1.18 6/06/80 515 <9 1.0 10/03/80 16 + 5 19 2 3.2 1.19 Zn-65 10/05/79 0 ( 10

m. 2/01/80 25 + 5 32 + 6 5.0 1.28

   ) 6/06/80    23 I 5          21 I 3            4.6 5.0 0.91 1.80 10/03/80   25 } 5          27}7.5 Ru-106 10/05/79       0             c. 40 2/01/80    51 + 5            ' 40
                                    .            10.2 6/06/80    37 I 5           ' 80
                                    .             7.4 10/03/80   46[+5            < 70             9.2 Cs-134 10/05/79    7+5             9+4              1.4    1.29 2/01/80    10 I 5          13 I 4            2.0    1.30 6/06/80    11 I 5          1371              2.2    1.18 10/03/80   20[+5           21 { 4.5          4.0    1.05 Cs-137 10/05/79   11 + 5          13 + 3            2.2    1.18 2/01/80    3015            35 E 7            6.0    1.17 6/06/80    17

5 19 + 3 3.4 1.12 10/03/80 12[+5 14 _I 3 2.4 1.17 H-3

( ,) 4/11/80 3400 1 360 3440 + 211 9.44 1.01

'~

6/13/80 2000 + 345 1890 + 135 5.80 0.95 8/15/80 1210 329 1110 } 70 3.68 0.92 2-29

HNP / ANNUAL REPORT U) ATTACHEMNT 1 Criteria for Comparing Analytical Measurements This attachment provides criteria for comparing results of capability tests and verification measurements. The criteria are based on an empirical relationship which combines prior experience and the accuracy needs of this program. In these criteria, the judgement limits are variable in relation to the comparison of the NRC Reference Labroatory's value to its associated one sigma uncertainty. As the ratio, referred to in this program as " Resolution," increases, the acceptability of a licensee's measurement should be more selective. Conversely, poorer agreeement should be considered acceptable as the resolution decreases. The values in the ratio criteria may be rounded to fewer significret figures to maintain statistical consistency with the number of significant figures reported by the NRC Reference Laboratory, unless such rounding vill result in a narrowed category of acceptance. The acceptat.te category reported will be the narrowest into which the ratio fits for the resolution being ased. RESOLUTION RATIO = LICENSEE VALUE/NRC REFERENCE VALUE Possible Possible D) (_ Agreement Agreement "A" Agreement "B" c3 No Comparison No Comparison "o Comparison 23 and 4 0.4 - 2.5 0.3 - 3.0 do Comparison

     '4   and <8           0.5 - 2.0              0.4 - 2.5          0.3 - 3.0

_8 and <16 0.6 - 1,67 0.5 - 2.0 0.4 - 2.5

     /16 and <51           0.75 - 1.33            0.6 - 1.67         0.5 - 2.0 3:51 and< 200         0.80 - 1.25            0.75 - 1.33        0.6 - 1.67 7 200                 0.85 - 1.18            0.80 - 1.25        0.75 - 1.33 "A" critaria are applied to the following analyses:

Gamma spectrometry, where principal gam =a energy used for identification is greater than 250 kev. Tritium analyses of liquid samples.

      "B"  criteria are applied to the following analyses:

Gamma spectrometry, where principal gctma energy used for identification is less than 250 kev. Sr-89 and Sr-90 determinations. Gross beta, where samples are counted on the same e1 date using the same reference nuclide. ( 1 v 2-30

HNP

  /"3                                  ANNUAL REPORT k/

s 2.6 Conclusions This chapter has shown the licensee's conformance with the radiological portions of the ETS. It has shown that all data were carefully examined. A summary, an interpretation and an evaluation (where warranted) of the results of the laboratory analyses for each type sample collected have been presented. A measurable radiological impact upon the environment as a consequence of discharges to the atmosphere and to the river was not established. The radiological impact upon the environment due to a nuclear weapons test conducted by the Peoples Republic of China was distinct in a number of the samples collected to monitor discharges to the atmosphere. The impact from the 1980 weapons test was somewhat less than that generally experienced. The environmental impact of the high tritium levels found in ground water samples during 1980 was minisuele. There was an overall decrease in the tritium levels during the year. Resolution of the ground water problem is progressing satisfactorily.

 .C'1 v

7"% .! ) v 2-31

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I I e 9A I I I I MH3 mus b- - - - - - -- hM 4+ - - - - - - - - -o- - - - - - - - d rise o e Pi3 A uM2 _S UBSURF ACE l 4 . . , DRAIN SYSTEM GEORGIA POWER COMPANY O - PIEZOMET.ERS EDWIN I. HATCH. NUCLEAR PLANT E -CATCH BASIN 10 0' . TEST HOLES AND THE DRAINAGE SYSTRN. Scale FIGURE 2.4-1

e ILNP ANNUAL REPORT CHAPTER 3 METEOROLOGICAL MONITORING TABLE OF CONTENTS f Section Title Pap;e 3.1 SPECIFICATION 3-1 3.2 ON-SITE METEOROLOGICAL MONITORING 3-1 3.3 DATA SLWL\ RIES - 1980 3-1 1 3.4 COMPARISON OF 1980 DATA 3-1 i i . O G: , T 3-1

        -,,           -       ., . , - - , , , , .                 ~ - - . . _ . . - . - . .              ,_ . . . . . . , , , . , . . ,

] 9 ANNUAL REPORT ILNP CHAPTER 3 METEOROLOGICAL MONITORING LIST OF TABLES Table Title Page 3.2-1 JOINT FREQUENCY TABLES OF WIND SPEED 3-2 AND DIRECTION 150 FT. LEVEL. 3.2-2 JOINT FREQUENCY TABLES OF WIND SPEED 3-6 AND DIRECTION 75 FT. LEVEL. 3.2-3 HATCH 1980 MO>THLY AND ANNUAL PRECIPITATION. 3-10

3.2-4 HATCH DATA RECOVERY 1/1/80-12/31/80. 3-11 O -

0 3-11

   . . , _ _ . - ~ _              . . . . . _ . -        .       _ _ . . - _ _      _ - _ . . . - . - - ~ . - . _ - . . . _ . _ - - - , _ . .- .. _-              -

4 HNP ANNUAL REPORT CHAPTER 3 METEOROLOGICAL MONITORING LIST OF FIGURES Figure Title 3.2-1 150-F00T ANNUAL WIND ROSE. 3.2-2 150-F00T SEASONAL WIND ROSES. 3.2-3 75-F00T ANNUAT, WIND ROSE. 3.2-4 75-F00T SEASCNAL WIND ROSES. 3.2-5 1980 AMBIENT TEMPERATURE. 3.2-6 1980 DEW POINT TEMPERATURE. O O 3-111

O HNP ANNUAL REPORT

3. METEOROLOGICA1. MONITORING 3.1 Specification The on-site meteorological monitoring program is carried out as recommended by the USNRC Regulatory Guide 1.23.

3.2 on-site Meteorological Monitoring Program The on-site meteorological monitoring instrumentation, data acquisit ion, and maintenance and calibration programs are as described in Section 3 of the HNP-1 Semi-annual Report for September - December,1974, and Section 2.3 of the HNP-1 Final Safety Analysis Report. 3.3 Data Summaries - 1980 Joint frequency tables of wind speed and direction by stability category for the 150-foot and the 75-foot level are presented in Tables 3.2-1 and 3.2-2. Wind roses for 150-foot and 75-Foot levels are shown in Figures 3.2-1 through 3.2-4. These are shown as annual and seasonal wind roses. Ambient temperature and dew point temperature are shown in Figures 3.2-5 and 3.2-6. These are presented as the average maximum, the average, and (~} \_ - the average minimum for each month. Monthly and annual precipitation totals are shown in Table 3.2-3. The percent data recovery for the parameters is shown in Table 3.2-4. 3.4 Comparison of 1980 Data The Hatch meteorological tower data for 1980 were very good in comparison with other years. The wind roses from 75 feet and 150 feet compare very well.between levels and with previous years. The minor difference being a small increase in southwest winds and a decrease in northwest winds this year over previous years. Both the ambient and dew point tempera-tures exhibit characteristics of a year with extremes in temperature. The late winter and spring months were generally cooler than normal. However, the summer and early fall temperatures were some of the warmest in the ten-year data base. Any differences can be attributed to normal year-to-year climatic variation. The rainfall totals for 1980 were significantly less than would normally be expected. Rainfall through most of the eastern United States was down considerably during 1980. s I \ LJ 3-1

o , P00R 3R BIBL AWUAL REPORT TA3LE 3.2-1 JOINT FREQUENCY TABLE OF WIND SPEED AND DIRECTION 150 Fr. VERSUS DELTA TET.ERATURE 150-33 FT. 1/1/80 - 12/31/80 m:Mt r=ECxM:v tasus ttr.rtervr:E DirrErEn:E .tt. -1.e :Eo. ret 99 rr

                                        $8EED (M*H)

SIR CALM CALM

3.8 7.8 12.6 18.4 84.6 32.S+ TOTAL s Avt

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200R ORIGE. O - ANNUAL REPORT TABLE 3.2-1 (Continued) J0!M7 FREC*JTM*V 7A9LES TEMPERAftAC CirTE*ME .C7. . 9 zuf .LE. .8 PEO.F/1CS M

                                     $ PEED (MPH)

O!R CALM CALM

3.8 7.8 12.8 18.8 24.8 22.8+ TOTAL a AVE

                  - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                                SPEED M         e        C     1        0          0    9      0      0      1      1.9     7.1 MME       e        o     e         1         9    0      9      8      1      1.9   19.6 ME         3       1     1        3          1    9      C      0      6     6.1      8.3 EME       O        O     2        4          1    4      8      9      7     7.1      9.3 E         e        1     3        2          e    e      e      e      6     s.1      s.1 E SE      e        1     4        2          0    0      0      0      7     7.1      S.6 SE        9        1     1        5          e    e      e      8      7     7.1      8.2 55C       8       2      1        4          1    8      8      8      8     8.1      8.3 5         8       3      3        8          e    4      e      t      6     6.1      4.5 SSW       e        1     0        5          0    0      0      0      6    6.1       8.5 SW .      0        1    2         2          2    0      0      0      7    7.1       9.6 Wsu       o       9      3        5          3    0     8       0     11 11.1      19.3 W         G       9      4        3          5    8     9       0     12 12.1      11.0 WMW       G       G     2         1          1    1     0       8      5    5.1     12.1 MW        8       9      1        3          4    8     0       e      8    8.1     11.5 MMW       G       9     0         1         4     8     0       0      1     1.9    10.4 TOTAL      8      11    28       41         18     1     8      9     99 100.0 a     e.e 11.1 28.3 4                18.2    1.9   0.0     9.6 194.0 ALK SPtf D FOR 7H!S Taste.1.4    9.0 Mpia O hours IM 880VE te3LE WITH UARIABLE DIRECTION.               O J01M7 FREQUENCY TABLES TEMEmatt*E DIFFCtEMCE .CT.             .8 But .LE.    .3  DCC.F/100 F?

SPEED (MPO D!R CALM CALM + 3.8 7.6 12.8 18.8 24.5 32.6+ T0fAL 4 AVE

                 - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                                SPEED M         8       1     7       12          9    1      0      0     34    2.5 19.7 MME       8       4     7       15         le    1      4      0     37    3.1       9.9 ME        e       2     9       45         15    e      e      e     71    4.0      18.8 EME       O       $    35      6e           7    1      .      0 .ic9      9.2       8.7 E         e       2    37       d2          6    e      e      0     87    7.3       7.9 ESE       8       4    19      39          to    S      e      9     72    S.1       8.8 SE        e      11    21      38           e    9      0      0     79    5.8       7.4 SSE       6       7    29      30           3    0      8      e     se    5.1       7.4 5         0       4    28       17          2    0      0      0     53    4.5       7.3 SSW       4       9    22      37           7    0      0      0     73    6.3       8.4 SW        8      12    25      63          11    3      8      0    114    S.E       9.0 WSW       8       5    22      65          16    2      4      9    118    9.3       9.9 W         e       C    76      39          29   18      8      0    111    9.8     10.4 WMW       8       4    PS      41          10    1      9      9     99    7.5       9.5 MJ        3       5    2r      33           5    t      G      C     69    5.8       8.6 MMW       8       2     7       12          3    2      0      8     26    2.2       9.5 TOTAL      8      F5   341    634        142     21      8      4 1154 itt.9
    %     0.8    7.3 28.8 50.2 12.0              1.8  0.9     4.5 let.0 AVE $*ff D FOR THIS TAf LE* 8.9 PPM NOURS IM A80V TABLE WitH VARI 4pLE DIRECT!DN.               2 O

3-3

o . AlciUAL 10EPORT P00ROR!Gl01 TABLE 3.2-1 (Continued) Jo!NT rat 0':twCv TASTES TE wE m W DITFZ M .C7. .3 BUT .LE. .8 DE0.F/100 FT SPEED 1RPHI DIR CALM CALM + 3.0 7.0 12.8.18.8 84.8 38.G+ TOTAL 0 DVE

                        - 3.5 - 7.5 -12.5 -1t.5 -24.5 -32.5                                      SPEED M         e        4    20       36          9     0       0          0     89  2.8       8.9 MME       8        3    11       36          8      1      0          0     59  2.3       9.8 ME        8        5    10     179        35        1      0          0   198   7.6      10.3 EME       e      to     47     184        35       4       e          e 217     8.3       9.6 E         8        9    71       70       13       2       0          0   165   0.3       8.0 ESE       8        4    C3       58         1      W       G          G   1E3   4.7       7.3 SE        e      13     75     103          4      0       0          0   195   7.5       7.7 SSE       4      IE     SG     104          2      1       0          8   193   7.4       7.6 5         0      13     78       97         4      0       0          0   192   7.3       7.5 SSW

1 17 62 til 8 2 0 0 109 7.2 8.4 SW ? El 63 151 24 2 0 0 261 10.0 8.8 WSW W 9 62 107 19 9 0 e 137 7.5 .9 W 9 8 52 88 24 4 0 0 188 7.1 A J WMW G 9 31 94 18 2 0 0 154 5.9 ^4 MW G S 23 55 35 2 0 0 152 5.8 as.4 NMW 9 3 15 24 22 1 0 0 65 2.5 10.3 TOTAL 5 150 754 1429 269 18 0 0 2615 100.0 t .2 5.7 28.8 9.9 .7 0.0 0.0 100.0 aut SPEED r00 THIS 7a1LE.54.8 8.8 MPW MouRS IM A30VE TABLE V1TH VARI ABLE DIRECTION = 5 O

JOINT FREQUEMCY TA9LES TEMPERATURE DIFFEREMCC .GT. .8 BUT .LI. 2.2 DES.F/100 FT SPEED (MPN) SIR CALM CALM + 3.5 7.8 12.6 18.5 24.8 32.E+ TOTAL 8 kVE

                      - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                                     SPEED M         e        1      8      12         3      0       0          0     22  2.0       8.7 MME       8        1      8      16       19       0       0          0     42  3.8      11.1 ME        9        3      0               10       0       0          0     34  7.6       9.8 EME       O        4    28                  7      0       0          0     88  7.9       8.4 E         O        3    20                  1      0       0          0     71  S.4       7.4 ESE       8        ?    31                  0      0       0          0     70  8.3       8.9 t

SC 0 9 24 ' 8 0 0 SG 5.4 6.8

        $$C       0        8    20      .                  0       0          0     56  5.0       7.e i        9         2      10     32       3.                0       0          0    76   E.8       S.9 l        SSW       G      14     14       41                0       0          0    78   E.8       8.2 l        SW        8      12     23       31           .

0 0 0 70 8.3 7.7 l WSW G 9 30 41 at 0 0 0 91 8.2 8.2 i W G 0 10 57 12 0 0 0 91 0.2 9.4 t WMW G 4 17 58 8 0 0 0 87 7.8 5.2 i ' ' MW G 5 8 48 18 0 0 0 79 7.1 10.2 MNW 1 2 13 28 5 0 0 0 47 4.2 8.8 7074L 3 iPS 390 595 107 0 0 0 1110 100.0 0 .3 9.5 27.0 9.8 0.0 0.0 0.0 100.0 8UE SPEIS FOR Tw!8 TABLE 3.4 PPM53.8 MouR5 IM A30VE TA)LI W1tM VARIABLE DIRECTIOM* 0 3-4

                                                                      -yy                --  ,g+    -    w-

o - ANNUAL REPORT P00R BRIGINM TABLE 3.2-1 (Continued)

                                     .!0!MT F EttCMOV Tr.2*ES ten EMTU"T 31FFE**EMCE .87. 2.8 DEQ.r/194 FT SPEED 1 RPM) 91R        CAL" CALP+       3.8       7.s it.S 13.S E4.6 32.9* TOTAL t                    AVE
                       - 3.5 - 7.5 -12.5 -10.5 -24.8 -32.5                                     SPEED M             3        4      5         8       1      0     0        0         18   1.6     8.7 MME           S        3    to        17      13       0     0        0        47    5.0    10.8 ME            O        e    IG        43       7       9     9        e        63    S.7     9.4 EME           9       E    23         34       e       t     0        e        fS    6.8     7.9 E             i       7    31         18       0       0     9       9         56    5.7     4.4 ESE           o       7    13          9       1      0      8       e         39    3.8     6.1 SE            9       4    22         13       9      9      0       0         37    4.8     S.5 SSE           :      12    21         18       1      9      9       9         52    5.3     6.4 5             1      13    28         19       3      0     e        t         64    G.5     6.4 SSW           1       7    1V         25       6      ?     8        9         51    5.9     7.8 SW            2       3    04         34     1e       9     0        0         E5    f.7     8.1 Wsu           1       E    24         49       3      0     1        0         C6    8.7     8.1 W             9     le     32         79     10       8     9        4        122 12.4       E.4 WMW           e       3    26        53        3      e     9        4         90   9.1      7.8 MW            t       5    25         32     le       4     8        9         72   7.3      8.5 MMW           1       8    14         12       8      e     0        0         41   4.2      7.1 TDTAL           4   106    343        452      23       0     1        4        986 190.0 t            4 19.3 34.5 4 5.8            8.1    0.t     .1      0.0 199.8 Aut SPEtt rom Twls in!LE               7.8 MPH Hour $ In trove TABLE WITH UARIABLE DIRECTION =

(} 1 esfMT FRE0uCN0Y TABLES SPEED 1RPH) SIR CALM CAL 9+ 3.8 7.5 12.8 18.5 24.5 32.G* TOTAL t mut

                      - 3.5 - 7.5 -12.5 -18.5 -28 5 -32.5                                     SPEED M             8      14    42         75     25       2     e        e        164    2.9     8.9 MME           e     17     43       101      so       4     9        9     222       E.7    14.1 ME            e      14    63       327      80       1     0        8        491    5.9     9.9 EME           e     2*    2iG       378      63       1     0        9     679       8.0     8.8 E             e     ?;     ?6       275      29       3     9        0     CSI       7.8     7.5 ESE           C     35    176       2t*      21       0     0        e        405   5.4      7.4 SE            1     S .t  203 231            18       9     0        0     565      6.0      7.2 SSE           5     55    171       232      14       1     0        0        479   5.7      7.4 8             3     G1    217       284      18       0     0        0     501      S.4      7.1 SSW           2     G5    133 278            42       2     9        8        548   6.6      8.2 SW            e     74    215       358      $2       5     0        0        726   8.4      8.3 W$U           1     33 2:3 361              100     19      2        8        716   8.8      9.2 W             8     51    2:7       367     137     29      1        e 816          9.7      9.3 V4W           D     Zi    13        301      98       9     1       0         57G   8.1      9.5 MW            9     2f    114       2?5      94     to      1        0        533   6.4      9.8 MMW           2     17     $1         91     46             e       0 223 TOTAL E                             2.7      S.2 14    623 2F?1 4133 897                83      5       9 0351 104.0 t          .2    7.5 31.1 4 3.5 10.7             1.9    .1      9.9 1C4.0 AVE SPEED rcet Twls Tc!LE              8.8 MPH NOWR9 11 A30VE fn:LI WifH VARIA3LE D19ECT!0Na 88 O

V-3-5

O uNr ANNUAL REPORT p' I ; gg' l [ l j TABLE 3.2-2 JOINT FREQUENCY TABLE OF WIND SPEED AND DIRECTION 75 FT. VERSUS DELTA TEMPERATURE 150-33 FT. 1/1/80 - 12/31/80 J0!MT FREQUEMCy TABLES TmPATVI DIFFEREWE .LE. -1.0 DES.F/199 FT SPEED (MFH) SIR CALM CALM 6 3.8 7.8 12.6 13.6 24.4 32.B* TOTAL a ave

                                  - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                                   SPEED M          e       7     12          5        1     0     0       8      25     1.3     8.8 MNE        e       4       7         7        0    S      0       0      18       .8    S.5 ME         e       7     22       27         3      8     8       t      59     2.7     7.5 EME        e     13      91       72          4    9      9       9    180      S.3     7.2 E          e     13    165        79         8     0      8      9 268 12.4             5.7 ESE        e     17      S3       33         2     9      e      e     141      6.5     6.7 SE         2     27      54       4?         5     t      9      C     138      6.4     6.2 SSE        3     17      51       15         1     0      0      6       57     4.0     5.4 5          1     F3     72        29         3     0      0      9     133      S.1     5.9 55W        0     27     7G        36         2     8     9       9     141      6.5     6.2 SW         2     29     32        53         6     8     9       8     163      7.5     6.5 WSV*       e     25    182        97       13      4     0       0     242 11.2         7.6 W          2     E9   135       169       21      4      4       0     296 13.7         7.4 WMW        1     15     63        79      20       9     0       0     133      8.4     3.2 MW         e      5     21       29        13      4     4       4       67     3.1     9.2 MMU        e       4     19         1        1     1     0       0       26     1.2     E.2 TOTAL      11    263 1C79 718              112       1     9       8 2167 100.8 t      .5   12.1   49.4      32.8      52      .0   0.0     4.9 190.0 AME SPEED FOR THIS 7t.3 lee 7.9 PPH O             HOURS IN ABOVE TAFLE WITH VARIABLE DIRECTIDMe 21 JOINT FREQUEMOV TABLES T N ATURE DIFFE"INCE .37. -1.9 BUT .LE.                 .9 DEC.Frite FT
                                                     $ PEED (MPH) 914     CALM CAL 9*      3.8      7.8    12.8 18.8 24.6 32.S* TOTAL 4                AVE
                                 - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                                   98EED M          e       e                0        0     0 8

1 0 0 1 4 7.2 MME 9 3 3 1 8 9 9' 7 2.8 8.9 ME 9 t 4 1 0 9 e 6 5 2.9 6.7 l

EME 1 13 2 8 8 8 9 16 6.3 6.1 E S 2 15 5 0 9 9 e 25 9.9 5.8 ESE D 2 11 3 1 0 8 9 22 8.7 7.1 SE 9 4 7 6 8 8 8 9 17 S.7 5.1 SSE e 1 G e 0 0 0 8 7 2.8 4.5 5 8 4 11 0 0 99W 9 19 1 0 9 18 6.3 5.3 E 5 8 9 8 e 17 6.7 E.4 SW # 4 9 E 8 0 0 0 19 7.5 8.6 WSW 8 3 15 5 3 9 8 9 38 11.9 7.5 W 9 0 15 9 2 0 0 9 27 10.7 7.8 WMW 9 e it 9 4 0 8 0 23 9.1 8.5 MW 4 9 2 9 5 8 MMW 9 9 18 7.1 11.5 9 0 9 2 0 0 0 0 2 .R 9.9 TOTAL 8 23 133 78 15 3 8 0 852 199.9 5 0.0 9.1 52.8 31 0 03 .8 0.0 0.0 100.9 AME 5'EED FOR TH18 7AFLE* 7.3 MPH i

MouRS IM AIDUE TAILE WITH V44IABLE DIRECTIDMa 1 l l l l O i 3-6 l l L.

HNP ; i ANNUAL REPORT Id ; l l TABLE 3.2-2 (Continued) I Jo!M7 rnE0"EMCY TABLES 7Enrtman.tE D1rrEetwet .ct. .9 aut .LE. .s des.Felee rt

                                     $'EED (MPM)

O!R Catm col 9+ 3.5 7.8 12.C 12.8 24.8 32.S+ TOTAL 4 ave

                    - 3.5 - 7.5 -12.5 -1C.5 -24.5 -32.5                          SPEED M         e      e     0       0       0     9      0       0     0   9.0    0.9 MME       O      O     e       9       0     C      0       0     0   9.9    9.9 ME        e      6     3       1       4     8      0       9     4   4.8    6.3 EME       6      9     2       4       0     9      0       0     6   5.9    8.5 E         S     3      7       2       9     9      9       8    12 11.9     5.2 ESE       ?      1     4       1       0     0      9       e     6   5.9    5.5 SE        P      4     4       3       1     0      8       0    12 11.9     6.2 SSE       e      1     4       2       e     e      e       t     7   6.9    5.9 5         9      1    5        0       0     0      8      e      0   5.9    5.9 SSW       P      1    2        1       8     9     0       4      4   4.9    6.0 SU        9     2      1       4       1     0     0       0      8   7.9    8.2 WSW      C      0     4        3       0     0     0       8      7   6.9    7.6 u         e     e     5       7        3    0      0       0     15 14.9     9.9 WMW      9      0     0       5       0     0      e       1      5   5.0    9.9 MW       c       1     1      3       2     8      9       'd     7   S.9    9.2 MMW      G       1     1      e       e     0      0       3      2   2.9    3.0 7074L      e     15    43      36       7     0      0       0   181 195.9 t    9.9  14.9 42.6 35.6          S.9   0.9   9.e     0.4 100.0 I AWE SPE"ED FOR THIS 7AtLEe     7.1 *tPM N0uts IM A30sE TA3LE WITH UARIABLE DIRECTIONe           $

J0!M7 FREQUEMCY TABLES 7p rEmptu:I DIFFEREMCC .07. .8 BUT .LE. .3 DEG.F/198 FTit SPEED (MPM3 DIR CALM CALM

3.6 7.5 12.5 13.8 24.5 32.6 70TAL 4 mVE

                   - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                          SPEED l     M         e      2     4       4       1     4      0      e     11     .9   6.5 l

MME O 2 5 le 3 0 8 4 CO 1.7 8.5 ME 1 2 24 36 4 8 0 67 5.6 8.4 l EME . 43 33 5 .t 37 7., 2.5 E e 18 $6 34 2 9 0 0 118 9.* 6.5 l ESE e 13 45 44 2 0 0 9 125 8.7 7.2 l SE 3 8 41 15 e t 8 8 67 5.5 5.7 SSC 4 22 25 8 8 8 8 8 55 4.5 4.5 8 8 14 de 11 3 4 4 4 58 5.7 8.0 SSW 6 10 47 32 7 8 9 9 96 S.0 7.2 SW 1 17 50 55 9 4 0 9 127 18.6 7.3 WSW 8 11 33 37 4 9 e e 91 7.6 7.3 W 8 5 52 45 12 0 0 0 115 9.6 7.9 WMW e 4 29 33 5 1 9 8 82 6.3 7.9 l MW 8 1 20 39 8 4 4 0 63 5.7 S.1 MMU 8 3 11 le 2 0 0 0 25 2.2 7.0 TOTAL 5 137 552 448 58 5 8 0 1983 109.4

       *      .4  11.4 45.9              4.8     .4   0.9     0.0 160.0 AVE SPEED FCt TMIS Tepit.37.1  7.2 P*N Moups IM A30/E TafL! WITH UARIABLE DIRECf!0ma           7 i

O 3-7

o . A30 RIAL REPORT P00R CRIBINM TABLE 3.2-2 (Continued) O!NT FCO'JiNCY TA3LES TE7FERATWE DIFFIE*C , T.T. .3 807 .LI. .8 DCO.F/100 FT SPEED 1RFH1 BIR CALM CALM + 3.8 7.8 12.8 18.8 24.6 32.6* TOTAL 8 AVE

                      - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                             SPEED M         $      0    11       10         2     0      0       0     21  1.1    8.0 MME       8     2     13       19         ?     8      0       0     37  1.4    S.5 ME        1     5     79     122        12      0      0       0   179   6.8    9.0 EME       e   22     73        25       11      0      0       0   125   7.4    7.5 E         4    45    39        46         9     0      0       0   204   7.7    G.0 E SE      1    32   133       27          1     0      0       0   196   7.4    5.5 SE       7    43    !?2       20         0     0       0       0   202   7.7    5.0 SSE      2    57    128        12         1     9     0        9   270   7.6    4.6 S        3    48    139        11        0     0       0       0 201     7.6    4.6
         $5W      3    29    140       62         8      1      0       0  243    9.2    6.4 SW       2    28    135       94       10      0      0        0  270 10.2      6.9 VSW      8    24     34       de         6     0      0        0   164  6.2     6.3 W        8    22     94       47         6     0      0       0    159  G.4     6.5 WMW      e      S    89       64         6     0      0       e    163  6.2     7.3 MW       G      8    27       62       33      0      0       0    130  4.9     9.7 MMW      G      3    25       15       12      1      0       0     56  2.1     8.5 TOTAL    23 377 1379          738       12e      2      0       0 2639 100.0

4.5 .1 0.0 0.0 100.0 O)'

(, .9 14.3 52.3 mut SPEED FOR THIS 7AILE S.G28.0 MPH MouR5 IM A3DUE TABLE WITH VARIABLE DIRECT!0M- 13 JCIMT F8EQUENCY TABLIS TDFDtATuftE DIFFEREMCE .GT. .8 SUT .LE. 2.2 MC.F/100 FT SPEED (P.PM) 3!R CALM CALM + 3.5 7.6 12.6 18.8 24.6 32.8+ TOTAL * *VE

                      - 3.5 - 7.5 -12.5 -18.5 -24.5 -32.5                             SPEED M         $      2      2        0        0     0-     0       0       4    4    4.3 MME       9      2    11         3        1     0      0       0     17  1.5    6.5 ME        e      1    28       41         5     0      0       0     75  5.5     8.E EME       e    13     52       27         6     0      0       0     93  8.7    6.8 E         1    36     E2         7        0     0      0       0   112   9.9    4.4 i

f SE 9 20 33 3 1 0 0 0 57 5.1 4.9 i SE 4 25 48 2 0 0 0 0 77 6.8 4.1 i SSC 1 28 44 1 0 0 0 0 74 6.6 3.8 5 3 26 59 - 1 0 0 0 0 89 7.9 3.9 ! 55W 5 13 48 15 1 0 0 0 82 7.3 5.3 l

         $W       3    24     51         7        0     0      0       0     85  7.5     4.5 W9W       1    18     77      22          1     0      0       0   117 10.4     5.9 l        W         8    le     ss       12         0     0      0       e     91  8.t    s.7 WNW       9      7    32       31         1     9      0       0     71  S.3    6.9

, NW G 1 22 25 11 0 $ $ 59 5.2 0.3 1 M"V e 2 7 9 2 0 0 0 ft 1.8 8.3 l TOTAL 18 225 - 849 206 29 0 0 0 1128 100.0 I t 1.5 29.0 57.5 2.0 0.0 0.0 0.0 100.0 M $ PEED ro' THIS 7AILE 18.3 5.7 fun MOU85 IM A3 M TASLE WITH DARIABLE DIRECTIC H 4 i l l'~~\ l U f l 3-8

0 - P00R LRIGIM ANNUAL REPORT TABLE 3.2-2 (Continued) JC1M7 rtEC'.TMCY Ta3LES TE m 7'pt Drrrt:Tn:I .c7. 2.c cEs.reles rf

                                                    $*EED in M>

sin CALM Cats' ?.s 7.s !a.s 15.s ti.s 32.s+ Total a act

                               - 3.5 - 7.5 -12.5 -1:.s -24.5 -32.5                                           s*EED n            e        1       1        e       e       e            o         e     2       .2     3.s Mme          e                9      le         1      e            s         a   as      a.s      s.s Mt           e      11      47       14       13       e            e         9     S     s.s      7.e EMt          e      is      se         4        1     e             e         e   st      5.1      4.9 t            2      23      29         4       e      e             e        e    st      5.9      4.e tsc          1     2s       14         1       e      e             e        e    42      4.2      3.5 SE           1      17      17        3        1      C             e        P    39      3.9      4.3 SSE          3     27       10         4       0      e             e        t    53      5.3      3.8 s            1     00       3?        2        e      B             e        C    77      7.8      4.1 55W .       e      CO       59       13        0      1             e        ?    $5      9.6      5.4 SW           1     34       56        9        e      e             0        0   140 10.1          4.6 W5W         e      33       77        4        e      e             e        0   til 11.2          4.7 W           2      33       to       13        8      e             e        e 128 12.9            4.3 WMW          1      13      45      23         e      e             8        )    EC      3.1     6.3 MW          C      11        9        8        3      ?             e        S    31      3.1     6.4 MMW         e        7       2        2        C

e C 11 1.1 4.0 Total 12 314 534 111 19 1 e e til 100.0 T e 1.2 31.7 53.9 11.2 1.9 .1 0.8 9.9 1t0.0

  )(' /

4WE t *CED FC4 THIS Ta!LE* 5.0 PPM Moups In a30VE taBLc WITH VeetatLE D1dECT!0N* 8 JCIM7 ret 00EMCY Ta3LES SPEED (PPN3 DIR CALM cal 5+ 3.5 7.8 12.6 18.8 24.8 32.64 TC7al e avt

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ANNUAL REPORT TABLE 3.2-3 HATCH 1980 MONTHLY AND ANNUAL PRECIPITATION Precipitation Month (inches) January 1.71 February 1.17 March 6.30 April 2.20 May 2.14 June 1.01 July 2.46 gs i August 0.72 V September 3.53 October 1.65 November None December 1.24 1980 Total 24.13 3-10

i r O HNP } ANNUAL REPORT TABLE 3.2-4 HATCH DATA RECOVERY d 1/1/80 - 12/31/80 i ! Recovery Parameter (Percent) Ambient temperature, 33 ft. 99.0 a . . Delta temperature, 150-33 ft. 97.4 Dev point temperature, 33 ft. 98.7 l Wind speed, 75 f t. 98.7 i Wind direction, 75 ft. 99.4 Wind speed,150 ' f t. 97.9 Wind direction, 150 ft. 98.8

O- Solar. radiation 99.5 Rainfall 99.6

. Composites i j Wind speed and direction 75 ft., delta- - 96.6 temperature 150-33 ft. J Wind speed and. direction 150 ft.,, delta 95.5 temperature 150-33 ft. ' i. i

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1980 DEW POLNT TEMPERATURES i FIGURE 3.2-6

(y O HNP ANNUAL REPORT CHAPTER 4 BIOLOGICAL MONITORING TABLE OF CONTENT 4 Section Title Page 4.1 IMPINGEMENT OF FISH 4-1 4.1.1 SPECIFICATIONS 4-1 4.1.2 RESULTS AND DISCUSSION 4-1 4.1.3

SUMMARY

4-4 4.2 ENTRAINMENT 4-5 4.2.1 SPECIFICATIONS 4-5 4.2.2 RESULTS AND DISCUSSION 4-5 4.2.3

SUMMARY

4-18 4.3 BENTH0S 4-19 4.3.1 SPECIFICATIONS 4-19 4.3.2 MATERIALS AND METHODS 4-19 4.3.3 RESULTS AND DISCUSSION 4-20 4.3.3.1 DENDY DATA 4-20 4

  -s        4.3.3.2  PETERSEN DATA                  4-32 q)         4.3.4

SUMMARY

4-42 4.4 AERIAL REMOTE SENSING 4-46 4.4.1 SPECIFICATION 5 4-46 4.4.2 RESULTS AND DISCUSSION 4-46

4.5 REFERENCES

4-47 7--) . lc) 4-1

HNP ANNUAL REPORT CHAPTER 4 BIOLOGICAL MONITORING LIST OF TABLES Table Title P_aSe 4.1 SPECIES AND NUMBERS OF FISH COLLECTED IN 4-2 MONTHt.Y IMPINCEMENT SURVEYS AT PLANT EDWIN I. HATCH FOR 1980. 4'.1 SPECIES AND NUMBERS OF FISH COLLECTED IN 4-3 '

                          -IMPINGEMENT SURVEYS AT PLANT EDWIN I. HATCH FOR 1975,1976,1977,1979, AND 1980.

4.2-1 SCIENTIFIC AND COMMON NAMES OF SPECIES OF 4-6 FISH COLLECTED DURING THE ENTRAINMENT STUDY. 4.2-2 . SPECIES, NUMBER OF INDIVIDUALS COLLECTED FOR 4-7

                         .EACH MONTH-DAY AND NIGHT, TOTALS FOR THE
                         -MONTH, FOR.THE DAY AND NIGHT, AND PERCENT CONCENTRATION OF EACH. TAXA AND EACH FAMILY.

4.2-3 MEAN AND RANGE OF THE TOTAI LENGTHS FOR EACH 4-9 1--

                         -SPECIES FOR EACH MONTH SAMPLES.

1 4'. 2--4 . AVERAGE MONTHLY DENSITIES FDR EACH FAMILY, 4-13 THE ESTIMATED. NUMBER FOUND IN THE RIVER IN THE. VICINITY OF THE PLANT, THE PERCENTAGE ENTRAINED, AND THE ESTIMATED NUMBER ENTRAIN-ED. 4.2-5 ALTAMAHA RIVER AVERAGE MONTHLY DISCHARGE, 4-15 PLANT HATCH RIVER. PUMPING DATA, AND THE PERCENT RIVER ENTRAINED FOR EACH MONTH FOR 1980. ~ 4.2-6 -PERCENT COMPOSITION Ol'FICH TAXA FOR 1974, 4-17 1975, 1976, 1979, AND 1980. 4.3-1 NUMBER OF INDIVIDUALS COLLECTED ON DENDY '4-21 SAMPLERS DURI'IG 1980. 4.3-2 AVERAGE STREAM VELOCITY MEASUREMENTS (cm/sec) 4-23 TAKEN AT BENTHIC STATIONS DURING 1979 AND 1980. 4.3-3 TAXA,-TOTAL NUMBERS, AND PERCENT COMPOSITION '4-24 0F ORGANISMS COLLECTED ON DENDY SAMPLERS'AT STATION 115.5 DURING-1980. 4'. 3-4 JTAXA,' TOTAL. NUMBERS, AND PERCENT COMPOSITION 4-27

                        -0F ORGANISMS ~ COLLECTED ON-DENDY SAMPLERS AT
                         . STATION'115.9 DURING.1980.

4.3-5 .' TAXA,' TOTAL NUMBERS, AND PERCENT COMPOSITION 4-29 0F ORGANISMS COLLECTED ON DENDYuSAMPLERS AT~ STATION.116.6 DURING 1980.

             ?4.3-6       PERCENT COMPOSITION OF DOMINANT TAXA COLLECT-     4-33
                        ~ED AT HNP ON'DENDY-SAMPLERS'FOR 1979 AND 1980.  '

{s ., 4 A HNP ANNUAL REPORT CHAPTER 4 BIOLOGICAL MONITORING LIST OF TABLES Continued Table Title Page 4.3-7 AVERAGE VALUES AND ANALYSIS OF VARIANCE FOR 4-34 HBAR DATA FROM DENDY SAMPLES COLLECTED DURING 1979 AND 1980. 4.3-8 AVERACE VALUES AND ANALYSIS OF VARIANCE FOR 4-35 NUMBER OF TAXA FROM DENDY SAMPLES COLLECTED DURING 1979 AND 1980. 4.3-9 AVERAGE VALUES AND ANALYSIS OF VARIANCE FOR 4-36 NUMBER OF INDIVIDUALS (LOG NUMBER OF INDI-VIDUALS + 1) DATA FROM DENbh SAMPLES COLLECT-ED DURING 1979 AND 1980. 4.3-10 NUMBER OF INDIVIDUALS COLLECTED IN PETERSEN 4-37 SAMPLES DURING 1980. ] x./ 4.3-11 SPECIES, TOTAL NUMBERS, AND PERCENT COMPOSI- 4-39 TION OF ORGANISMS COLLECTED IN PETERSEN SAM-PLES AT STATION 115.5 DURING 1980. 4.3-12 SPECIES, TOTAL NUMBERS, AND PERCENT COMPOSI- 4-40 TION OF ORGANISMS COLLECTED IN PETERSEN SAM-PLES AT STATION 115.9 DURING 1980. 4.3-13 SPECIES, TOTAL NUMBERS, AND PERCENT COMPOSI- 4-41 TION OF ORGANISMS COLLECTED IN PETERSEN SAM-PLES AT STATION 116.6 DURING 1980. 4.3-14 AVERAGE VALUES AND ANALYSIS OF VARIANCE FOR 4-43 HBAR DATA FROM PETERSEN SAMPLES COLLECTED DURING 1979 AND 1980. 4.3-15 AVERACE VALUES AND ANALYSIS OF VARIANCE FOR 4-44 NUMBERS AND TAXA DATA FROM PETERSEN SAMPLES COLLECTED DURING 1979 AND 1980. 4.3-16 AVERAGE VALUES AND ANALYSIS OF VARIANCE FOR 4-45 NUMBLR OF INDIVIDUALS (LOG NUMBER OF IN-

           .DIVIDUALS+1)DATAFROMPkkERSENSAMPLES COLLECTED DURING 1979 AND 1980.

gg L) 4-111

IINP ANNUAL REPORT C11 APTER 4 BIOLOGICAL MONITORING LIST OF FIGURES Figure Title 4.1-1 WATER TEMPERATURES FOR Tile ALTAMAllA RIVER AT THE BEGINNING OF EAC11 IMPINGEMENT SURVEY AT llNP FROM J ANilARY, 1980 - DECEMBER, 1980. 4.1-2 WATER TEMPERATURES FOR Tile ALTAMAllA RIVER AT T11E END OF EACll IMPINGEMENT SURVEY AT llNP FROM JANUARY, 1980 - DECEMBER, 1980. 4.1-3 RIVER ELEVATION FOR THE ALTAMA11A RIVER AT THE BE-CINNING OF EACH IMPINGDfENT SURVEY AT llNP FROM JANUARY, 1980 - DECEMBER, 1980. 4.1-4 RIVER ELEVATION FOR THE ALTAMAHA RIVER AT THE END OF EACll IMPINCEMENT SURVEY AT HNP FROM JANUARY, 1980 - DECEMBER, 1980. 4.2-1 AIR TEMPERATURES FOR THE DAY AND NIGHT ENTRAINMENT SURVLYS ON THE ALTAMAllA RIVER AT HNP FROM FEBRUARY, O 4.2-2 1980 - SEPTEMBER, 1980. WATER TEMPERATURES FOR THE DAY AND NIGIIT ENTRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT llNP FROM FEBRUARY, 1980 - SEPTEMBER, 1980. 4.2-3 DISSOLVED OXYGEN CONCENTRATIONS FOR THE DAY AND NIGHT ENTRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT llNP FROM FEBRUARY, 1980 - SEPTEMBER, 1980. 4.2-4 pH VALUES FOR THE DAY AND NIGHT ENTRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT IINP FROM FEBRUARY,1980 - SEPTEMBER, 1980. 4.2-5 SPECIFIC CONDUCTANCE FOR THE DAY AND NIGHT ENTRAIN-MENT SURVEYS ON THE ALTAMAHA RIVER AT HNP FROM FEB-RUARY, 1980 - SEPTEMBER, 1980. 4.2-6 ALTAMAHA RIVER CROSS SECTION AND VELOCITY PROFILE FOR STIVER ELEVATION 19.7 m. 4.2 ALTAMAHA RIVER CROSS SECTION AND VELOCITY PROFILE FOR RIVER ELEVATION 21.5 m. 4.3-1 COMPARISONS OF SPECIES DIVERSITY (HBAR) VALUES BE-TWEEN SAMPLING STATIONS, QUARTERS, AND YEARS FOR DENDY SAMPLES TAKEN AT HNP DURING 1979 AND 1980. 4.3-2 COMPARISONS OF SPECIES . DIVERSITY (HBAR) ' VALUES BE-TWEEN SAMPLING STATIONS, QUARTERS, AND YEARS ~ FOR PETERSEN SAMPLES TAKEN AT HNP DURING 1979 AND 1980. /3 N) 4-iv

['T HNP ANNUAL REPORT

4. Il!OI.OGIGAI. MONITOltING 4.1 Impingement of Fish 4.1.1 Specification Impingement collections were conducted according to the NPDES Permit No. GA. 0004120 as approved by the Georgia Environmental Protection Division:

Collection of impingement samples will be accomplish 2d by inserting a wire basket with 3/8 inch mesh size into the screen backwash sluiceway. Samples will be collected monthly for a period of 12 months beginning in March following the initiation of commercial operation of Unit 2. Species, length, weight, and life stage will be determined for each individual impinged; total number of individuals will be recorded. 4.1.2 Results and Discussion Fourteen fish (Table 4.1-1) representing six species and one damaged (~T ictalurid which could not be idencified to species were impinged. \~-) The most abundant species was Trinectes maculatus with six individuals impinged. Amia calva was represented by three individuals; while the remaining taxa, Aphredoderus sayanus, Ictalurus spp. , Ictalurus punctatus, Lepomis auritus, and Percina nigrofasciata were represented by one individual each. The weight (grams) and length (millimeters) of each is presented in Table 4.1-1. Water temperatures taken at the beginning and end of each survey are presented in Figures 4.1-1 and 4.1-2. The highest temperature recorded was 30.0 C on July 15 and 17, 1980; while the lowest was 8.9 C on February 15 and 16,1980. River elevations are presented in Figures 4.1-3 and 4.1-4. The highest, 81.9 feet, was recorded on March 19, 1980; while the lowest, 63.7 feet, was recorded on September 16 and 17, 1980. Data for Figures 4.1-3 and 4.1-4 are from unpublished primary computation of gage heights and dis-charge for the Altamaha River for 1980 at USGS station 02225000 located near the U.S. Highway 1 bridge. Data for November and December were not available during the writing of this report. Five years,- 1975, 1976, 1977, 1979, and 1980, of impingement samples were collected at Plant Edwin I. Hatch. A total of 165 fish (Table 4.1-2) representing 22 species were collected. The highest number impinged, 61 fish, was in 1975; while the lowest, 14 fish, was in 1980. The data indicate low impingement estimates per day and per year. The ,3 1975 estimates are 1.2 fish per day and 438 per year; 1976~ estimates () are .4 fish per day or 146 per year; 1977 estimates are 1.1 fish per day or 401.5 per year; 1979 estimates are 1.3 fish per day or 474.5 4-1

 ,O
 \~s/            Table 4.1-1. Species and Numbers of Fish Collected in Monthly Impingement Surveys at Plant Edwin I. Hatch for 1980.

Date Sper . Collected

Length (mm) Weight (grams) 1-15-80 NOSP**

2-15-80 NOSP 3-18-80 Trinectes maculatus (6) 61 5.0 63 5.7 65 6.0 54 3.3 61 4.9 61 5.0 Percina nigrofasciata (1) 43 .8 4-15-80 Aphredoderus sayanus (1) 86 11.3 5-10-80 Amia calva (3) 115 17.0 107 15.5 107 14.0 6-17-80 NOSP (,. () 7-15-80 Ictalurus spp. (1) Specimen Damaged Lepomis auritus (1) 55 2.7 8-19-80 Ictalurus punctatus (1) 203 84.3 9-16-80 NOSP 10-14-80 NOSP 11-12-80 NOSP 12-17-80 NOSP

Number Collected in Parenthesis

       ** Indicates No Species Collected (3

- N._.) 4-2

s Table 4.1-2. Species and Numbers of Fish Collected in Impingement Surveys at Plant Edwin I.11atch for 1975, 1976, 1977, 1979, and 1980. Species Common Name 1975 1976 1977 1979 1980 Totals Amia calva Bowfin 3 3 (6) Alosa sapidissima American shad 1 (1) Dorosoma cepedianum Gizzard shad 2 (2) Dorosoma potenense Threadfin shad 3 (3) Esox americanus Redfin pickerel 1 (1) liybonnathus nuchalis Silvery minnow 1 1 (?) Notropis callisema Altamaha shiner 1 (1) Notropia hudsonius Spottail shiner 1 (1) Notropis spp. Minnow 1 (1)

 *- Ictalurus brunneus          Snail bullhead de 1                     (1)

Ictalurus nebulosus Brown bullhead 1 (1) Ictalurus platycephalus Flat bullhead 1 (1) Ictalurus punctatus Channel catfish 1 1 1 1 (4) Ictalurus spp. Catfish 1 (1) Aphredoderus sayanus Pirate perch 2 1 (3) Acantharchus pomotis Mud sunfish 2 1 (3) Centrarchus macropterus Flier 3 1 1 (5) Lepomis auritus Redbreast sunfish 1 1 2 1 (5) Lepomis gulosus Wa rmouth . 15 1 (16) Lepomis macrochirus Bluegill 4 1 (5) Lepomis punctatus Spotted sunfish 2 (2) Lepomis spp. Sunfish 1 (1) Pomoxis nigromaculatus Black crappic 1 1 (2) percina nigrofasciatus Blackbanded darter 1 1 (2) Trinectes maculatus llogchoker 43 15 15 16 6 (95) Totals 61 23 47 20 14 (165) e

per year; and 1980 estimates are 1.2 fish per day or 438 per year. The hogchoker, Trinecte_s maculatus, was the most abundant and the only species collected every year. Most species were collected only once during the five years. Biological factors affecting impingement are the resident fish population, daily and seasonal movements to deeper water, feeding be-havior, and movement associated with breeding behavior. Other factors which determine impingement losses are river elevation, intake veloci-ties, and site location. Elevated river levels resulted in a reduction in intake velocities. In addition, the velocity of water in the intake structure increases from the surface to the bottom due to the intake pumps. An accurate correlation between river elevation and the nunoer of impinged fish for the five years cannot be made because of the very low number of fish impinged. The increase in velocity at the bottom of the intake structure may explain why the majority of the fish in-pinged were Trinectes maculatus, a bottom dweller. The intake structure is located on a straight shoreline which would not harbor many fish, especially predatory game species. Low intake velocities and site location are probably the primary factors resulting in low numbers of impinged fish. 4.1.3 Summary The impingement data for the five years indicate that impingement p

 -d losses at Plant Edvin I. Hatch are extremely low. The findings show that impingement does not create a significant environmental impact.

This completes the requirements set forth by the NPDES Permit No. GA-0004120 and the 316(b) demonstration plan of study and completion schadule approved by the Georgia Environmental Protection Division (EPD). In accordance with the NPDES permit, a final report of the study will be submitted to the Georgia EPD. Upon approval of the study, the NRC will be notified. m

4-4 I

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

i < O HNP i ANNUAL REPORT . j. 4.2 Ent rainment 4.2.1 Specification - 1 Entrainment studies were conducted according to the NPDES Permit ! No. GA. 0004120 as approved by the Georgia Environmental Protection . Division: ,

Diel entrainment samples will be collected monthly at the intake structure. Sampling will begin in March following the initiation <

of ccmmercial operation of Unit 2 and will continue.through Septem- . ber. Georgia Power Company biologists will meet with Georgia De-partment of Natural Resources, Game and Fish Division biologists by October 15 to decide if late summer densities warrant the col-lection of additional data. In any case, no mere than twelve (12) monthly collections will be made. Samples will be collected using 4 twin 0.5 m diameter plankton nets with a mesh size of .760 p. Sample duration will be determined by measuring river velocity, and with a predetermined chart, a time facter allowing for the filtering of approximately 500 cubic meters of water through the net. In situations of very low velocities, the net will remain eet for a maximum of two hours. 4.2.2 Results and Discussion A total of 25 fish eggs and 442 fish (includes larvae, juveniles and

adults) were collected in the eight month study. No specimens were j collected in the February samples. Most specimens, 24 eggs and 380

                                ' fish, were collected at night.

4 The scientific and common' names of the species collected are presented

ein Table 4.2-1. The family Cyprinidae (includes the cyprinids, Hybog-nathus nuchalis, Notropis chalybacus, and Notropis peterson1) was the most abundant with 128 fish cornrising 29% of the total number of. fish l collected (Table'4.2-2). .The next most abundant families were the Catostomidae with 101 fish' (22.9%) and the Centrarchidae with 78 fish i (17.6%). The least. abundant' family was the Soleidae with one fish

(.2%). The family Clupeidae was represented by 48. fish (10.9%) of which Alosa sapidissima comprised 10.4% (46 fish). Eleven Alosa sapidissima eggs were collected (44% of tbc total number of eggs co]- lected).

The mean and range-(in parenthesif.) of the total lengths for the species and the' month in which they were. collected are presented in Table 4.2-3.

Densities for each fish taxa collected vere calculated as follows. The

                                , total number of individuals in each taxa was divided by the volume of i(' [
                                                                                                  ~

river water filtered during day.and night. sampling to obtain the densities

4-5 4', v # y v + , , = . , v. = ..rre *rr - - ew-- e w- - , - **--+,r-+, -

                                                                                                                                    --*n m-- v--, & v --+w    + e--*' .-e+   - -va-

/~s

( ) Table 4.2-1. Scientific and comraon names of species of fish collected during the entrainment study. Scientific Name Common Name Alosa aestivalis Blueback herring Alosa sapidissima American shad Dorosoma spp. Shad Clupeidae Herring and shad Esox spp. Pickerel Esox americanus Redfin pickerel Hybognathus nuchalis Silvery minnow Notropis chalybaeus Ironcolor shiner Notropis petersoni Coastal shiner Cyprinidae Minnow Carpiodes velifer Highfin carpsucker Minytrema melanops Spotted sucker Moxostoma anisurum Silver redhorse Ictalurus brunneus Snail bullhead Ictalurus nebulosus Brown bullhead Ictalurus punctatus Channel catfish Noturus gyrinus Tadpole madtom Aphredoderus sayanus Pirate perch Labidesthes sicculus Brook silverside Strongylura marina (^') Atlantic needlefish A' Lepomis spp. Sunfish Leromis auritus Redbreast sunfish Micropterus salmoides Largemouth bass Pomoxis spp. Crappie Perca _f_lavescens Yellow Perch Percidae Darter Trinectes maculatus Hogchoker Unknown egg Unknown larvae ,~ Y \_,/ 4-6

O O O i Table 4.2-2. Species, number of individuals collected for each month-day and night, totals for the month, for day and night, and percent composition of each taxa and each family. l Species Feb. March Anr. May- June July Aug. Sept. Totals % of % of % of Species D N D N D N D N D N D N D N D N D N Fish Egg Family Clupeidae 10.9 l Alosa aestivalis 1 1 0 2 .23 Alosa sapidissima l Egg 4 1 6' 1 10 44

       . Fish                            1   2. 2  7 28     2    3                            11 34   10.41 Dorosoma spp.                           1                                                   1   0     .23 Clupeidae-                                      1                                           1   0     .23 Esocidae                                                                                                            1.4 Esox spp.                       2   3                                                       2   3   1.13 i   Esox americanus                              1                                              0   1    .23 w

Cyprinidae 29.0 Hybognatbus nuchalis 1 30 1 30 7.01 Notropis chalybaeus 1 0 1 .23 Notropis potersoni 8 2 0 19 2.26 Cyprinidae 4 9 1 26 9 1 22 5 4 5 6 80 19.46 r Catostomidae 29.0 Carpiodes velifer 4 6 3 12 4 12 34 1 11 65 17.19 Minytrema melanops 8 14 1 8 15 5.20 Moxostoma anisurum 1 1 1 1 .45 Ictaluridae 6.6 Ictalurus brunneus 12 0 12 2.71 Ictaturus nebulosus 2 5 7 2 12 3.17 Ictalurus punctatus 2 0 2 .45 Noturus grinus 1 0 1 .23 Aphredaderidae 5.89 Aphredoderus sayanus 2 22 1 1 2 24 5.66 i

(~% LJ

                                                                 'O N- >

(3,

\_)

Tabic 4.2-2 (Con' t) Species Feb. March Apr. May June July Aug. Sept. Totals % of % of I of Species D N D N D N D N D N D N D N D N D N Fish .. Egg Family Atherinidae 5.89 Labidesthes sicculus 3 0 3 .68 Belonidae .7 Strongylura marina 1 1 1 1 2 .68 Centrarchidae 17.6 Lepomis spp. 1 1 1 7 1 56 1 2 66 15.38 Lepomis auritus 1 0 1 .23 Micropterus salmoides 1 0 1 .23 Pomoxis spp. 5 3 5 3 1.81 i 0' Percidae 2.9 Perca flavescens 1 1 2 2 4 1 7 4 2.49 Percidae 2 0 2 .45 Soleidae .2 Trinectes maculatus 1 1 0 .23 Unknown Egg 6 2 6 2 12 56 Unknown Fish 4 1 1 0 6 1.36 1.4

    . Totals                 0    0 12 27 22 80 14 100 11 64           4 30    0 95   0   9 65 403   100% 100% 100%

Monthly Total 0 39 102 114 75 34 95 9 468

c. - . . - .

                        -Table 4.2-3. Mean and Range (In Parenthesis) of the Total Lengths (mm) For Each Species For Each Month Sampled (Specimens Which Could Be Identified But Were Damaged Were Not Measured or Included in This Table).

Species Feb. March April May. June July Aug. Sept. Alosa aestivalis 4.9 Alosa sapidissima 6.6 10.2 17.9 20.2 (6.2-11.8) (7.7-25.0) (17.0-23.0) Dorosoma spp. 3.5 ' Clupeidae 4.6 Esox spp. 17.2 (11.2-21.0) j3 Esox americanus 45.0 Hybognathus nuchalis 19.5 (15.0-25.0) ; Notropis chalybaeus 37.0 Nottopis petersoni 10.5 15.5 (8.8-12.9) (15.0-16.0) Cyprinidae 4.7 8.6 19.3 5.7 4.8 5.0 6.6 (3.8-7.1) (3.9-15.0) (7.7-24.0) (3.5-9.8) (3.9-5.3) (4.9-5.2) (4.8-9.1) Carpiodes velifer 7.5 6.4 6.6 5.9 6.4 7.3 (6.7-8.0) (5.3-7.4) (5.3-8.4) (5.3-6.6) (5.3-7.7) Minytrera melanops 11.2 11.5 (8.7-15.0)

        -r'N                                             /G                                                      ,
         \.)                                             Ns'                                                   ]

Table 4.2-3. (Con't) Species Feb. .%rch April May June July Aug. Sept. Moxostoma anisurum 23.5 (21.0-26.0) Ictalurus "orunneus 19.5 (17.0-21.0) p Ictalurus nebulosus 19.6 16.1 (17.0-25.0) (15,0-17.0) Ictalurus punctatus 24.0 (18.0-30.0) Katurns gyrinus 13.0 3, ._ W Aphredoderur. sayanus 8,1 33.0 (3.5-27.0) Labidesthes sicculus 4.7 (4.2-4.9) Strongylura marina 17.0 15.S (13.0-18.0) Lepomis spp. 5.3 7,3 9.6 13.0 6.9 15.0 (5.2-13.4) ( 4. 2 -8. 3 ) Lepomis auritus 27.0 Micropterus salmoides 6.3 1 Pomoxis spp. 4.2 (3.8-5.3) l

1 1 e O . O Table 4.2-3. (Con't) !

Species Feb. March April .May June July Aug. Sept.

I Perca flavescens 7.1 6.1 7.4 5.9 1 { (6.9-7.3) (5.6-7.0) (6.7-8.8) ! ) Percidae 6.2 i

Trinectes maculatus 76.0 t i

! Unknown Fish Not measured because all these specimens were damaged. I 4 i k I g r W l i i i l I l 4 i l i. t j i

                                                                                                                                                                                                                                      ....,,f

                                . _ ~         _ _ - _ .                           -_ _
   -    for each sample. The estimated densities for each month were obtained by averaging the densities for all samples taken during the month.

Estimates of total numbers of fish eggs and fish in the vicinity of the plant were obtained by multiplying average monthly densities by total '9nthly river discharge using USGS data for the Altamaha River near Baxley. The percent of river discharge entrained was calculated using total monthly discharge and the total volume of water pumped each month. The estimated number of each taxa entrained was calculated by multiplying densities by the number of individuals in the vicinity of the plant by the percent of river discharge entrained. Average monthly densities for each family for the month they were collected, the estimated number of fish eggs and fish entrained by the plant, the estimated number found in the river in the vicinity of the plant, and the estimated percent entrained are given in Table 4.2-4. The highest estimated number of fish entrained was for the family Centrarchidae at 4920.9 individuals in June. This estimate assumes a homogenous dispersal of fish in the water (so the actual number entrain-ed.will vary). The lowest estimates were for the family Esocidae at 61.1 individuals in April. The month of September had the highest per-cent entrainment of 3.52 percent with the months of March and April the lowest at .21%. Air temperatures recorded during the study are presented in Figure 4.2-1. The highest temperature was for the day sample in August at 32.4 C, and the lowest was the night sample in February at 12.0 C. lO, Water._ temperatures are presented in Figure 4.2-2. A high of 31.0 C was recorded for the night sample in August, and a low of 7.5 for the night sample in February. Dissolved oxygen concentration was lowest for the night sample in February and the day sample in September with a measurement of 5.2 mg/l (Figure 4.2-3). The highest recorded was 9.1 mg/l for the day sample in February. Because of meter malfunction, air and water temperature and~ dissolved oxygen concentration were nct taken in July. pH values are given in Figure 4.2-4. Values for pH wer'e below 6.0 for the day and night samples in February and March and the night sample in April. The highest pH recorded was 6.7 for the June, July, and August samples. pH values are not presented for Septem-ber because of meter malfunction. Specific conductance is presented in Figure 4.2-5. The highest recorded was 138 microhms/cm for the night sample in September, and the lowest'was 35 microhms/cm for the night sample in March. Plant Hatch river pumping data for January,1980, through October,1980, and the percent river entrained for each month are presented in Table 4.2-5. In addition,' Table.4.2-5 presents the average monthly discharge-

     , for the: Altamaha River. Percent river. entrained by the plant was at or above 1.0% for;the. months of June through October (1.0, 1.5, 3.2, 3.5, and 2.9%, respectively). The' lowest percent entrained was 0.2%

occurring in March'and April.

Velocity profiles were measured in seven 26.m sections of the river

     .and are presented'in Figures'4.2-6 and 4.2-7. At elevations 19.7 m and 21.5 m, average depths of each layer were 0.5 m and 1.4 m,
  }

12.

(~~) O J J Table 4.2-4. Average Monthly Densities For Each Family, the Estimated Number Found in the River in the Vicinity of the Plant, the Percent Entrained, and the Estimated Number Entrained. Estimated Number Esti=ated Number Monthly Densities of Eggs & Fish Percent of of Eggs & Fish Per 1000 m3 in the Vicinity River Discharge Entrained by the Month Family' of Water of the Plant Entrained Plant Each Month February- NOSP* NOSP NOSP 0.50 NOSp March Clupeidae 0.9 84,609 0.21 177 Clupeidae egg 1.0 94,010 197 Esocidae 0.7 65,807 138 Cyprinidae 3.3 313,053 657 i Centrarchidae 4.1 381,680 801 Percidae 0.6 53,116 112 y Unknown egg 1.5 140,075 294 [ . TOTAL 12.1 1,132,350 2,376 April Clupeidae 1.8 173,628 0.21 365 Clupeidae egg 2.0 192,910 405 Esocidae 0.3 28,938 61 Cyprinidae 7.9 762,034 1,600 Catostomidae 7.8 752,388 1,580 Aphredoderidae 6.6 636,636 1,337 Centrarchidae 0.6 57,876 122 Percidae 1.8 173,628 365 Unknown egg 0.6 57,876 122 TOTAL 29.4 2,835,914 5,955 My Clupeidae 10.5 286,330 0.80 2,293 Cyprinidae 13.0 354,516 2,836 Catostomidae 2.6 70,903 567 Ictaluridae 3.5 95,447 764 Aphredoderidae 0.3 8,181 l 65 i Belonidae 0.3 8,181 65 Centrarchidae 0.3 8,181 65 l

0, g- (D. u) 0 we Table 4.2-4. (Con't) Estimated Number Estimated Number Monthly Densities of Eggs & Fish Percent of of Eggs & Fish Per 1000 m3 in the Vicinity River Discharge Entrained by the Month Family of Water of the Plant Entrained Plant Each Month May (Con't) Percidae 1.0 27,270 0.80 218 Unknown egg 1.7 46,356 371 ! Unknown 1.1 29,998 240 TOTAL 34.3 935,662 7,485 9 June. Clupeidae 1.8 45,036 0.97 437 Cyprinidae 12.3 308,08d 2,988 Catostomidae 5.0 125,239 1,215 ' Ictaluridae 1.8 45,086 437 Aphredoderidae 0.4 10,019 97 Atherinidae 1. 3 32,562 316

Belonidae 0.9 22,543 219 y Centrarchidae 3.8 95,182 923 g Soleidae Adult 0.5 12,524 121 TOTAL 27.8 696,328 6,754 July Cyprinidae 2.1 31,060 1.54 478 Catostomidae 3.6 53,246 820 Ictaluridae 2.1 31,060 478 !

Centrarchidae .4 5,916 91 Unknown .4 5,916 91 TCTAL 8.6 127,198 1,959 i August Cyprinidae 11.5 85,847 3.17 2,721 6 Centrarchidae 20.8 155,271 4,922 Unknown 0.3 2,240 74 TOTAL 32.6 243,458 7,718 September Cyprinidae 2.9 17,493 3.52 616 Catostomidae 0.6 3,619 127 Centrarchidae 0.6 3,619 127 Percidae 0.6 3,619 127 ; TOTAL 4.7 28,350_ 998 !

Indicates No Species Found

O Table 4.2-5. Altamaha River average monthly discharge, Plant llatch river pumping data, and the percent river entrained for each month for 1980. Plant Hatch River River Discharge Pumping Data Percent River Month (Ca11ons/ Day) (Gallons / Day) Entrained 6 January 6,982 x 10 50.9 x 10 6 0.7 6 February 10,282 x 10 51.4 x 10 6 0.5 March 24,761 x 10 6 52.7 x 10 6 0.2 6 6 April 25,507 x 10 53.8 x 10 0.2 6 6 May 7,210 x 10 57.5 x 10 0.8 6 June 6,623 x 10 64.3 x 10 6 1.0 6 6 July 3,908 x 10 60.2 x 10 1.5 6 6 August 1,984 x 10 62.5 x 10 3.2 6 6 September 1,596 x 10 56.1 x 10 3.5 6 October 1,946 x 10 0 57.3 x 10 2.9 f V 4-15

t'D

 ~#  respectively. It should be noted that the deepest section is on the north bank. Velocities of the upper and lower layers in the section of the river nearest the Hatch intake indicated that approximately 57% of the intake flow would be drawn from the upper layer, and ap-proximately 43% would be drawn from the lower layer. With one pump operating, a maximum of 0.54 m 3/sec will be withdrawn form the Alta-maha River. This represents 0.6% of the discharge at river elevation of 19.7 m. With four pumps operating per unit, a maximum of 4.8% of the flow would be diverted.

The State of Georgia has specific criteria for water quality control concerning dissolved oxygen concentration, water temperature, and pH (Georgia Environmental Protection Division,1974). Dissolved oxygen concentration for warm waters is a daily average of 5.0 mg/l and no less than 4.0 mg/1. Concentrations were lowest, 5.2 mg/1, for the night survey in February and the day survey in Septem-ber. Water temperatures for the state are not to exceed 32.2 C (90.0 F) . Temperature.s during the study did not exceed this limit with the highest, 31.0 C, recorded for the August light survey. The pH range for the State of Georgia is 6.0 to 8.5. Values were below 6.0 for the day survey in February and March and the night survey for 3 February, March, and April. The lowest recorded was 5.6 for the night s ,j survey in February and the day survey in March. Since the samples were collected upstream from our discharge and no industry is located upstream in the vicinity of the plant, this should indicate a normal occurrence. The range for specific conductance for a diverse fish fauna in freshwater is between 150 and 500 microhms/cm (Ellis et al.1946). The highest recorded was 138 microhms/cm for the September night survey; while the lowest was 35 microhms/cm for the March night su rvey. Entrainment samples at Plant Edwin I. Ratch were collected for the years 1974, 1975, 1976, 1979, and 1980. Samples were collected weekly from 1974 through 1976 and monthly in 1979 and 1980. Table 4.2-6 presents the percent composition of the fish egg and fish for the five-year study. The differences in total number of fish eggs and fish collected are the results of the changes in sampling frequency. For the years 1975, 1979, and 1980, the most abundant fish were in the family Cyprinidae. The family Catostomidae was the most abundant for the years 1974 and 1976. The family Esocidae was the lowest for the years 1975, 1976, and 1977. The family Soleidae (an adult) was the lowest in 1980; while in 1974, une lowest was grouped as Other taxa. This group consisted of families rep-resented by very low numbers, such as the Atherinidae and Belonidae. The commercially important Alosa sapidissima was highest in 1980 and lowest in 1979. The eggs of Alosa sapidissima were the most abundant in 1974, 1975, and 1976. No Alosa sapidissima eggs were collected in 1979; while in 1980,. eggs from other species were more abundant. / %) 4-16

        /<n
      '\_)                     Table 4.2-6. Percent Composition of Fish Taxa for 1974, 1975, 1976, 1979, and,1980.

Fish Percent Composition Family, 1974 1975 1976 1979 1980 Aphredoderidae 2.11 2.98 1.11 -- 5.89 Atherinidae -- -- -- -- 0.70 Belonidae -- -- -- -- 0.70 Catostomidae 61.75 12.38 56.18 17.30 22.90 Centrarchidae 5.27 21.85 14.46 23.20 17.60 Clupeidae 5.23 2.39 2.54 1.30 10.90 Cyprinidae 13.66 37.21 18.65 48.40 29.00 Esocidae 1.33 0.53 0.11 0.70 1.40 Ictaluridae 0.16 11.57 0.29 2.70 6.60

Percidae 6.38 4.21 4.44 6.00 2.90 Soleidae -- -- -- -- 0.20 Other Taxa 0.12 1.05 0.36 -- -- Unidentified 3.54 5.83 1.86 -- 1.40 Total Fish Collected 2,562 1,712 2,793 151 442 Eggs Alosa sapidissima 51.16 52.71 86.16 -- 44.00 Other Taxa 48.84 47.29 13.84 -- 56.00 Total Eggs Collected 258 258 1,033 -- 25 77 4-17

O An interesting note in Table 4.2-6 is though the data are not comprehensive, it does indicate a fluctuation in percent composition for each famil/ from one year to another. For some families, this is more pronounced, as in the family Catostomidae; while in the family Esocidae, the percent composition was always very low. 4.2.3 Summary It was noted in the Edwin I. Ibtch Nuclear Plant Annual Environmental Surveillance Report No. 3, January 1 - December 31, 1976, (Georgia Power Company, 1977) that densities of fish and fish eggs during the spawning seasons in 1974, 1975, and 1976 generally fluctuated directly with spawning intensity and inversely with river flow. The same con-ditions occurred in the 1979 and 1980 studies. Relative abundance of fish families varied during the five years of study, but the Catostomidae Cyprinidae were the most abundant taxa each year. Clupcidae comprised

     , only a' small percentage of the total fish collected with 1980 being the highest (10.9%). The density of most fish groups was greater in night samples than in similar day samples.

Estimated entrainment of fish and fish eggs into HNP cooling water has remained less than.one percent of the total population during five successive spawning periods with the exception of the months of July, August, and September, 1980. The increase in estimated percent entrained was due to extremely low river elevations resulting from the lack of / - rain fall. Based on the five years of study, estimated entrainment at

\      the plant does not constitute a significant reduction in the fish popu-lation.

This completes the requirements set forth by the NPDES Permit No. GA-0004120 and the 316(b) demonstration plan of study and completion sche-dule approved by the Georgia Environmental Protection Division (EPD). In accordance with the NPDES permit, a final report of the study will be submitted to the Georgia EPD for review and comment. Upon approval of the study, the NRC will be notified. U 4-18

O ILNP ANNUAL REPORT 4.3 Benthos 4.3.1 Specification Benthos studies were conducted according to the HNP-ETS Section 3.1.2.1.1 and NPDES Permit No. GA. 0004120, Part IB-2 as follows. The benthic macroinvertebrates were sampled to detect and assess possible changes in species composition, diversity, distribution, and abundance as related to power station operation. All samples were collected and analyzed according to the program description specified in Section 5.6.1 of HNP-ETS. The monitoring program began January 2, 1979, and will continue until approved for modification or termination of this monitoring requirement is obtained from NRC in accordance with Section 5.7.3. The results of the data obtained from the 1979 benthic survey were presented in the HNP Annual Surveillance Report (1979). The 1979 report demonstrated a generally healthy benthi~ macroinverte-brate community upstream and downstream from HNP. The data collected in 1979 will be considered a base year for comparison with the 1980 data because HNP-2 did not become operational until September,1979. f-' 4.3.2 Materials and Methods V) Six Dendy multiplate samplers and five modified Petersen dredge samples were collected at each of three stations on January 31, 1980, April 28, 1980, July 21, 1980, and October 6, 1980. The sampling stations were the same as those for 1979 at approximate river miles 116.6, upstream from the HNP discharge; 115.9, in the mixing zone; and 115.5, near the downstream edge of the mixing zone. The Dendy samplers were constructed of tempered masonite plates with a combined surface area for all six samplers of 0.5 square meters. The samplers were suspended 0.2 meters below the surface at each station during the six-week exposure. Modified Petersen dredge samples were taken on a transect at each station. The substrate was predominately loose sand, and the combined area sampled for the five grab sampics was 0.13 square meters. An analysis of variance (ANOVA) was performed on the Dendy and Petersen data for species diversity (HBAR), number of taxa, and number of Individ-uals(transformedasLogkion, month, year,andstation-month, station-Factors analyzed year, station-month-year interactions. Current velocity was measured using a Pigmy Pattern flow meter placed at the depth of the Dendy samplers. Three separate measurements of three-minute durations were made at each station and averaged.to obtain f"] \- / the ambient stream velocity for each station. 4-19

       -=           .-                                  -

V 4.3.3 'Results and Discussion 4.3.3.1 Dendy Data Table 4.3-1 presents a list of the taxa collected by Dendy samplers at HNP during 1980. Ephemeroptera (Mayflies) were represented by nine taxa with Stenonema sp. being the most abundant. Baetis sp. was also abundant. These species were generally evenly distributed among the stations. A large, seasonal increase in Tricorythodes sp. occurred at Station 115.5 in July. Eight taxa of Plecoptera (Stonefiles) were collected. Perlesta sp. appeared :ht large numbers in April and was replaced by Paragnetina sp. in July and October. Coleoptera (Beetles) were represented by five taxa with Stenelmis sp. adults being most numerous. July was the peak month for these species.

           -The Hydropsy hidae were the dominate group'of the eleven taxa of Trichoptera (Caddisflies) which were collected. This group also reached its greatest number in July. .Its distribution appears to be related to current velocity with greater numbers of organisms occurring in areas of greater; velocity. Table 4.3-2 presents ambient stream velocity measurements taken in 1979 and 1980.

Five taxa of Diptera (Flies) occurred. Chironomidae and Simulidae ( appeared in large numbers in April at all stations. . Chironomidae were still present in moderate numbers in July, but the number of Simulidae remaining was negligable. Large numbers of Chironomidae also occurred in October.- The/d ata 'for percent composition (Table 4.3-3 through 4.3-5) reflect dominance at each station by'similar taxa within and among date periods.

          'For the January sampling period, Ephemeroptera, Trichoptera, and Chiroa-omidae were the dominant taxa present and comprised 86%, 99%, and 98%

of the total organismsspresent at Stations 115.5, 115.9, and 116.6, respectively. . In April, seasonal increase in Simulidae occurred. The Simu11dae, Ephemeroptera, Trichoptera, and Chironomidae, accounted for 94% (115.5), 96% (115.9), and 95% (116.6) of the total organisms col-1ected. Simulidae were replaced in July by Stenelmis sp. adults, Ephem-eroptera, Trichoptera, and Chironomidae and comprised 93% (115.5), 95% (115.9), and 91% (116.6) of the total organisms collected. "The October-sampics were dominated by Ephemeroptera, Trichoptera, Chironomidae, and Stenet .s sp. adults (93% (115.5),-86%.(115.9), and 93% (116.6) of the total organisms present). Species ' diversity (H' BAR) values for Dendy sa:nplesL raken at HNP during 1979 and 1980 are presented in - Figures 4.3-1. The HBAR values ~for the Dendy samplers for'1980 are'similar throughout the year with the excep-tion of slightly depressed values during the April, 1980, sample. The decrease was duetto a large seasonal increase in'Simulidae which com-

          -prised 50% (115.5), 39% (115.9),,and 44% (116.6) of tha organisms col-1ected. There wereJalso large numbers of Chironomidae present in the          '

. ( ][ April, 1980, samples from all stations.- A comparison of.the 1979 and

          -1980 HBAR values shows them to be similar.

20

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

r O HNP ANNUAL REPORT TABLE 4.3-1 NUMBERS OF INDIVIDUALS COLLECTED ON DENDY SAMPLERS DURING 1980 Station Taxa 115.5 115.9 116.6

       *Ephemeroptera Isonychia sp.                                           8                                  35     15 Tricorythodes sp.                                214                                       38     50 Ephemerella sp.                                    54                                      47     41 Caenis sp.                                              1 stenonema sp.                                    258                                     417    403
           *Heptageniidae                                       80                                      86     52          :

Heptagenia sp. 139 76 83 [

           *Baetidae                                            39                                      51    34 Baetis sp.                                      180                                      182    179 Odonata                                                                                                            -

Argia sp. 1 O. ~

      '*Plecoptera                                              12 8      5 pteronarcys sp.                                      3                                      1
           *Perlidae                                            12                                       5      7 Neoperla sp.                                          4                                      8      2 perlesta sp.                                       55                                      27     20 Acroneuria ap.                                        1                                      7-     1
           -Paragnetina sp.                                    55                                      43     49 Isoperla-sp.                                          1 Isogenus sp.                                                                                 1      1 Megaloptera Corydalus sp.                                      22~                                     21     19 Coleoptera Stenelmis sp. Adult                             145                                      342      61           ;

Macronychus glabratusLAdult 12, 6 6

        '*Elmidae Larvae                                                                                        1 Stenelmis.sp.-Larvae                              A0                                      10       2
          - Macronychus glabratus Larvae                       19                                       8    14 Trichoptera.                                                .
          'Chimarra sp.                                           1 Neureclipsis sp.                                   .2.                                     .1      1
         *Hydropsychidae.                                   130                                       38     40            1
          'Macronema sp.                                       ~1                                              1

(). .Hydropsyche sp. 19 5 8' 4-21

N p), k TABLE 4.3-1 (con't.) Station Taxa 115.5 115.9 116.6 Ilydropsyche incommoda 321 129 115 liydropsyche orris 321 61 62 Cheumatopsyche sp. 101 61 55

                     *Hydroptilidae.                                                   81               18                           42.

Ceraclea sp. 14 5 5 Nectopsyche sp. 3 i

Diptera 1
Ceratopogonidae 1 1

Chironomidae 1114 870 624

                     *Simulidae                                                    612             596                              463
                     *Empididae                                                          7                 2                            3 Atherix sp.                                                        2                 2                           4

Annelida 8

                  *011gochaeta                                                           2                1                            3 m              *Isopoda                                                                                                              1
                 *Hydracarina                                                            1
                 *Were not identified ueyond the indicated taxonomic leve) 1 V                                                                                                                                   .

4-22

                               - .-.       _         _. ,                   . , . - _ ,_               - . . _ .    . . , . .          . . _ . ~ _ . . . _.      . ~ . -

   .m    . . _ _ _ _ _ _   _             . _ . . _   . _ _ _ _ _ . _ _ . _ _ _ _ _ _ .                    _ __.   . . _ . _ - -          _ . . _ _ _

i l 1 l O IINP ANNUAL REPORT i TABLE 4.3-2 AVERAGE STREAM VELOCITY MEASUREMENTS (cm/sec) TAKEN AT BENTilIC STATIONS DURING 1979 AND 1980 STATION DATE 115.5 115.9 116.6 01/31/79 92.7 75.3 87.5 04/26/79 119.8 123.0 142.8 I 07/16/79 83.5 56.0 50.6 10/09/79 96.3 79.3 75.9 01/31/80 113.4 137.3 111.0 I 04/28/80 120.8 148.2 115.4 I g 07/21/80 85.8 52.1 55.3 10/06/80 80.4 45.5 57.2 t ( O . l 4-23

                         -    .~ .                 .                    ~ . . _ , . - - - - . - . . -

A U HNP ANNUAL REPORT TABLE 4.3-3 TAXA, TOTAL NUMBERS, AND PERCENT COMPOSITION OF ORGANISMS COLLECTED ON DENDY SAMPLERS AT STATION 115.5 DURING 1980 Total Number Percent Date Taxa Of Organisms Composition 01/31/80 Ephemerella sp. 54 16.4 Stenonema sp. 21 6.4 Heptageniidae 28 8.5 Heptagenia sp. 23 7.0 Baetidae 39 11.9 Baetis sp. 47 14.3 Plecoptera 5 1.5 Per11dae 3 0.9 Neoperla sp. 1 0.3 Isoperla sp. 1 0.3 Stenelmis sp. Adult 1 0.3 Stenelmis sp. Larvae 2 0.6 Hydropsychidae 1 0.3 f3 Hydropsyche sp. 7 2.1 () Hydropsyche incommeda 21 6.4 Hydropsyche orrie 23 7.0 Cheumatopsyche sp. 19 5.8 Chironomidae 33 10.0 04/28/80 Isonychia sp. 1 0.1 Stenonema sp. 11 0.9 Heptageniidae 1 0.1 Heptagenia sp. 58 4.8 Baetis sp. 23 1.9 Plecoptera 2 0.2 Pteronarcys sp. 1 0.1 Neoperla sp. 1 0.1 Perlesta sp. 55 4.5 Stenelmis sp. Adult 12 1.0 Macronychus glabratus Adult 2 0.2 Macronychus glabratus Larvse 1 0.1 Hydropsychidae 40 3.3 Hydropsyche incommoda 23 1.9 Hydropsyche orris 42 3.5 Cheumatopsyche sp. 31 2.5 Chironomidae 304 25.0 Simulidae 608 50.0 Empididae 1 0.1 A G

                                     .4-24

\-

TABLE 4.3-3 (Con't.) Total Number Percent Date Taxa Of Organisms Composition 07/21/80 Isonychia sp. 6 0.4 Tricorythodes sp. 204 13.5 Caenis sp. 1 0.1 Stenonema sp. 148 9.8 Heptageniidae 20 1.3 Heptagenia sp. 21 1.4 Baetis sp. 55 3.6 . Plecoptera 4 0.3 1ceronarcys sp. 2 0.1 Perlidae 3 0.2 Acroneuria sp. 1 0.1 Paragnetina sp. 21 1.4 Corydalus sp. 10 0.7 Stenelmis sp. Adult 128 8.5 Macronychus glabratus Adult 10 0.7 Stenelmis sp. Larvae 35 2.3 Macronychus glabratus Larvae 13 0.9 Chimarra sp. 1 0.1 Macronema sp. 1 0.1 e~x Hydropsychidae 70 4.6 k_) Hydropsyche sp. 12 0.8 Hydropsyche incommoda 147 9.7 Hydropsyche orris 209 13.8 Cheumatopsyche sp. 39 2.6 Hydroptilidae 2 0.1 Ceraclea sp. 9 0.6 Chironomidae 329 21.8 Simulidae 2 0.1 Empididae 6 0.4 Hydracarina 1 0.1 10/06/80 Isonychia sp. 1 0.1 Tricorythodes sp. 10 0.9 Stenonema sp. 78 7.5 Heptageniidae 31 3.0 Heptagenia sp. 37 3.6 Baetis sp. 55 5.3 Plecoptera 1 0.1 Perlidae 6 0.6 Neoperla sp. 2 0.2 Paragnetina sp. 34 3.3 Corydalus sp. 12 1.2 Stenelmis sp. Adult. 4 0.4 Stenelmis sp. Larvae 3 0.3 Macronychus glabratus Larvae 5 0.5 Neureclipsis sp. 2 0.2 7_ - e v) - 4-25

G TABLE 4.3-3 (Con't.) Total Number Percent Date Taxa Of Organisms Composition 10/06/80 Hydropsychidae 19 1.8 Hydropsyche incommoda 130 12.5 Hydropsyche orris 47 4.5 Cheumatopsyche sp. 12 1.2 Hydroptilidae 79 7.6 Ceraclea sp. 5 0.5 Nectopsyche sp. 3 0.3 Ceratopogonidae 1 0.1 Chironomidae 448 43.1 Simulidae 2 0.2 i Atherix sp. 2 0.2 Annelida 8 0.S 011gochaeta 2 0.2 4 llI O 4-26

t b}' HNP ANNUAL REPORT TABLE 4.3-4 TAXA, TOTAL NUMBERS, AND PERCENT COMPOSITION OF ORGANISMS COLLECTED ON DENDY SAMPLERS AT STATION 115.9 DURING 1980 Total Number Percent Date Taxa Of Organisms. Composition 01/31/80 Ephemerellts sp. 47 15.5 Stenonema sp. 29 9.6 Heptageniidae 26 8.6 Heptagenia sp. 22 7.3 Baccidae 27 8.9 Baetis sp. 62 20.5 Perlidae 1 0.3 Neoperla sp. 2 0.7 Isogenus sp. 1 0.3 Macronychus glabratus Larvae 1 0.3 Hydropsyche sp. 3 1.0 Hydropsyche incommoda 22 7.3 Hydropsyche orris 17 5.6 Cheumatopsyche sp. 17 5.6 Hydroptilidae 1 0.3 (- ) Chironomidae 25 8.3 04/28/80 Isonychia sp. 1 0.1 Stenonema sp. 16 1.1 Heptageniidae 10 0.7 Heptagenia sp. 34 2.2 Baetidae 24 1.6 Baetis sp. 38 2.5 Plecoptera 5 0.3 Perlesta sp. 27 1.8 Acroneuria sp. 1 0.1 Paragnetina sp. 3 0.2 Stenelmis sp. Adult 17 1.1 Macronychus glabratus Adult 2 0.1 Stenelmis sp. Larvae 2 0.1 Macronychus glabratus Larvae 1 0.1 Hyd opsychidae 37 2.4 Hydropsyche sp. 2 0.1 Hydropsyche incommoda 20 1.3 Hydropsyche orris 17 1.1 Cheumatopsyche sp. 24 1.6 Hydroptilidae 5 0.3 Chironomidae 632 41.7 Simulidae 596 39.3 011gochaeta 1 0.1 L) 4-27

TABLE 4.3-4 (Con't.) Total Number Percent Date Taxa Of Organisms Composition 07/21/80 Isonychia sp. 31 2.9 Tricorythodes sp. 31 2.9 Stenonema sp. 287 26.6 Heptageniidae 48 4.5 Heptagenia sp. 7 0.6 Baetis sp. 54 5.0 Argia sp. 1 0.1 Plecoptera sp. 2 0.2 Pteronarcys sp. 1 0.1 Per11dae 2 0.2 Acroneuria sp. 6 0.6 Paragnetina sp. 18 1.7 Corydalus sp. 15 1.4 Stenelmis sp. Adult 304 28.2 Macronychus glabratus Adult 4 0.4 Stenelmis sp. Larvae 4 0.4 Macronychus glabratus Larvae 3 0.3 Hyd ropsychidae 1 0.1 Hydropsyche incommoda 79 7.3 (-] Hydropsyche orris 26 2.4 (_/ Cheumatopsyche sp. 19 1.8 Ceraclea sp. 2 0.2 Chironomidae 129 12.0 Empididae 2 0.2 Atherix sp. 2 0.2 10/06/80 Isonychia sp. 3 1.0 Tricorythodes sp. 7 2.2 stenonema sp. 85 27.2 Heptageniidae 2 0.6 Heptagenia sp. 13 4.2 Baetis sp. 28 8.9 Plecoptera 1 0.3 Perlidae 2 0.6 Neoperla sp. 6 1.9 Paragnetina sp. 22 7.0 Corydalus sp. 6 1.9 Stencimis sp. Adult 21 6.7 Stenelmis sp. Larvae 4 1.3 Macronychus glabratus Larvae 3 1.0 Neureclipsis sp. 1 0.3 Hydropsyche incommoda 8 2.6 Hydropsyche orris 1 0.3 Cheumatopsyche sp. 1 0.3 Hydroptilidae 12 3.8 ,S , Ceraclea sp. 3 1.0 (_,! Chironomic.ae 84 26.8 4-28

HNP ANNUAL REPORT TABLE 4.3-5 TAXA, TOTAL NUMBERS, AND PERCENT COMPOSITION OF ORGANISMS COLLECTED ON DENDY SAMPLERS AT STATION 116.6 DURING 1980 Total Nunber Percent Date Taxa Of Organisms Composition 01/31/80 Ephemerella sp. 40 12.4 Stenonema sp. 21 6.5 Heptageniidae 19 5.9 Heptagenia sp. 31 9.6 Baetidae 23 7.1 Baetis sp. 50 15.5 Plecoptera 2 0.6 Perlidae 1 0.3 Paragnetina sp. 2 0.6 Isogenus sp. 1 0.3 Hydropsychidae 2 0.6 Hydropsyche sp. 1 0.3 Hydropsyche incommoda 28 8.7 r~' Hydropsyche orris 26 8.1 ( Cheumatopsyche sp. 24 7.5 Chironomidae 51 15.8 04/28/80 Isonychia sp. 2 0.2 Ephemerella sp. 1 0.1 Stenonema sp. 18 1.7 Heptageniidae 6 0.6 Heptagenia sp. 22 , 2.1 Baetidae 4 0.4 Baetis sp. 47 4.5 Plecoptera 3 0.3 Perlidae 1 0.1 Neoperla sp. 1 0.1 Perlesta sp. 20 1.9 Paragnetina sp. 4 0.4 Stenelmis sp. Adult 14 1.3 Macronychus glabratus Adult 1 0.1 Stenelmis sp. Larvae 1 0.1 Macronychus glabratus Larvae 1 0.1 Macronema sp. 1 0.1 Hydropsychidae 31 3.0 Hydropsyche sp. 7 0.7 Hydropsyche incommoda 16 1.5 Hydropsyche orris 12 1.1 Cheumatopsyche 8 0.8

-s,-

Ceratopogonidae 1 0.1 N 4-29

im \- TABLE 4.3-5 (Con't.) Total Number Percent Date Taxa Of Organisms Composition 04/28/80 Chironomidae 357 34.2 Simulidae 462 44.2 Oligochaeta 3 0.3 Isopoda 1 0.1 07/21/80 Isonychia sp. 12 2.2 Tricorythodes sp. 40 7.4 Stenenema sp. 238 44.2 Heptagenia sp. 5 0.9 Baetis sp. 60 11.1 Paragnetina sp. 17 3.2 Corydalus sp. 11 2.0 Stenelmis sp. Adult 25 4.6 Macronychus glabratus Adult 3 0.6 Stenelmis sp. Larvae 1 0.2 Macronychus glabratus Larvae 10 1.9 Hydropsyche incommoda 22 4.1 Hydropsyche orris 15 2.8 Cheumatopsyche sp. 16 3.0 Hydroptilidae () 1 0.2

Diptera 1 0.2 Chironomidae 57 10.6 Empididae 3 0.6 Atherix sp. 2 0.4 10/06/80 Isonychia sp. 1 0.2 Tricorythodes sp. 10 1.8 Stenonema sp. 126 22.2 Heptageniidae 27 4.8 Heptagenia sp. 25 4.4 Baetidae 7 1.2 Baetis sp. 22 3.9 Perlidae 5 0.9 Neoperla sp. 1 0.2 Acroneuria sp. 1 0.2 Paragnetina sp. 26 4.6 Corydalus sp. 8 1.4 Stenelmis sp. Adult 22 3.9 Macronychus glabratus Adult 2 0.4 Elmidae Larvae 1 0.2 Macronychus glabratus Larvae 3 0.5 Neureclipsis sp. 1 0.2 Hydropsychidae 7 1.2 Hydropsyche incommoda 49 8.6 Hydropsyche orris 9 1.6 Cheumatopsyche sp. 7 1.2 g V 4-30

              <                           -             w         -

9

 ,I I                                                                                                                                                                                                                                            l 7

9 TABLE 4.3-5 (Con't.) I l Total Number Percent Date Taxa Of Organisms Composition i 10/06/80 Hydroptilidae 41 7.2 Ceraclea sp. 5 0.9 Chironomidae 159 30.0

Simulidae 1 0.2 l

Atherix sp. 2 0.4 i h r i I l i a l i G

4-31

(D Comparison of the number of taxa collected on Dendy samplers for 1979 and 1980 shows no major differences between years. Ten taxa of Cole-optera were collected in 1979 and only five in 1980. The decrease in taxa from 1979 to 1980 was due to the collection of four different taxa in 1979 that are not usually obtained on a regular basis. The major Colepteran taxa, Elmidae, occurred both years. The percent composition of dominant taxa (Ephemeroptera, Trichoptera, Chironomidae, Simulidae, and Stenelmis sp. adults) for Dendy samples were quite similar for 1979 and 1980 (Table 4.3-6). Ephemeroptera, Trichoptera, and Chironomidae dominated all stations in January for both years. In April, there was an added seasonal appearance of Simulidae, which apparently matured, emerged, and was replaced in July and October by Elmid beetles. The data also demonstrated a seasonal occurrence of large numbers of Tricorythodes sp. at Station 115.5 with smaller numbers at 115.9 and 116.6 for both 1979 and 1980. The occurrence of these organisms in higher numbers at Station 115.5 may be related to current velocity. The Environmental Protection Agency in Environmental Requirements and Pollution Tolerance of Ephemeroptera (EPA-600/4-78-061), lists a common southeastern species of Tricorythodes as being rheobiontic, that is, occurring in water with a faster current. The current velocity at Station 115.5 was faster than at either of the other two stations in 1979 and 1980. /~T L/ An analysis of variance (ANOVA) was performed on the Dendy data for HBAR, number of taxa, and number of individuals (transformed as Log (number of; individuals + 1)) for 1979 and 1980. .Factorsanalyzedwdhe station, month, year, and station-month, station-year, month year, station-month-year interactions. This analysis showed significant interactions which precluded detecting significant differences among main effects (year, station, month). Results are presented in Tables 4.3-7 through 4.3-9. 4.3.3.2 Petersen Data Table 4.3-10 presents a list of the taxa collected in Petersen samples at HNP during 1980. The Coleoptera (Beetles) were represented almost entirely by Stenelmis

      -sp. larvae. The predominat Diptera (Flies) were Chironomidae and Ceratopogonidae. Corbicula sp. (Pelecypoda) and 011gochaetes also occurred in'large numbers. The cercarial stage of Trematode flukes were also abundant. The other taxa present were represented by rela-tively low numbers of individuals, some of which (i.e. Hydropsychid Caddisflies) were not usually associated with the predominately loose sand substrate which occurs at all stations.

Percentage composition data for the Petersen samples are presented in Tables 4.3-11 through 4.3-13. Petersen data exhibited more variation ,~s than the Dendy data, but similar taxa occurred among stations within ( ! date periods, and there were taxa common to all stations for all sam-pling periods. Chironomids were present in all samples for all date 4-32

(b/ ' HNP ANNUAL REPORT TABLE 4.3-6 PERCENT COMPOSITION OF DOMINANT TAXA

COLLECTED AT HNP ON DENDY SAMPLERS FOR 1979 AND 1980 115.5 115.9 116.6 DATE PERIOD 1979 1980 1979 1980 1979 1980 January 97 86 94 99 97 93 April 98 94 97 96 99 95 July 95 93 99 95 90 91 October
90 93 81 86 88 93

            *Ephemeroptera, Trichoptera, Chironomidae, Simulidae, Elmidae - see text 7-  s,

(, ! a 4-33

_r~\ U IciP ANNUAL REPORT TABLE 4.3-7 AVERACE VALUES AND ANALYSIS OF VARIANCE FOR HBAR DATA FROM DENDY SAMPLES COLLECTED DURING 1979 AND 1980 Station Year Jan. Apr. Jul. Oct. 115.5 1979 2.73 1.92 3.40 3.33 1980 3.25 2.25 3.22 2.88 115.9 1979 2.90 1.82 3.01 3.20 1980 3.06 2.16 2.84 2.84 116.6 1979 2.66 1.29 2.74 3.21 1980 3.10 2.21 2.67 3.11 Analysis of Variance: Source df ss ms F 7s Station 2 1.48 0.74 6.39*** i )

 ~' '

Month 3 31.07 10.36 89.63**** Year 1 0.47 0.47 4.07* Station

Month 6 1.67 0.28 2.41*

Station

Year 2 0.63 0.32 2.74NS Month
Year 3 4.33 1.44 12.49****

Station

Month
Year 6 0.49 0.08 0.71NS Error 120 13.86 0.12 Total 143 54.00

       *Significant for a = 0.05
       ****Significant for a = 0.001 NS = Not Significant df = Degrees of Freedom ss = Sums of Squares ms = Mean Squares 7,
%__l 4-34

 '                                                                                                                j 2

l ' l 1 O. me

;                                                          ANNUAL REPORT IABLE 4.3-8.

_ AVERACE VALUES AND ANALYSIS OF VARIANCE FOR NUMBER OF I ! . TAXA DATA FROM DENDY SAMPLES COLLECTED DURING 1979 AND 1980 Station Year Jan. Apr. Jul. Oct. f 2 115.5 1979 9.83 16.83 18.33 15.17 11.83 11.83 18.83 16.67 1980c 113.9 1979 10.67 15.17 14.50 13.50 1980 10.83 14.33 15.17 12.50

                              - 116.6           1979         7.83~         13.17          14.67      16.00 1980       10.67-          13.67          12.83      15.50
     ,                      Analysis of Variance:

Source . df. ss ms F

          .                : Station                      .2        97.72         48.86          9.78****

Month 3 626.97 R208. 99 41.84**** Year 1 0.25 0.25 0.005NS -

                           . Station

Month 6. 151.28 25.21 5.05****

Station

Year ~2 2.00 1.00 0.02NS

                          , Month

Year 3 53.64' 17.88 3.58*

l

                          ! Station

Month
Year' -6 480.78 13.46 2.70*

Error . 120 599.33 4.99 Total 143. 1611.97 ! ~ ;*Significant for a_= 0.05-

                            ****Significant-for.a = 0.001-i t

f A G r.) . r r 4-35

                  ,         .      - ._                      _ ~ .      . . - _ ~ _ , . . ___-        -    - ..          -..      .                        .     -        .    .
!~

4 O MNe ANNUAL REPORT i TABLE 4.3-9 AVERAGE VALl'ES AND ANALYSIS OF VARIANCE FOR

                                                  ' NUMBER OF INDIVIDUALS (LOG                                    NUMBER OF INDIVIDUALS + 1)

DATAFROMDENDYSAMPLESC0bkECTEDDURING1979AND1980 Station Year Jan. Apr. Jul. Oct. 115.5 1979 1.82 2.65 2.37 1.99 i 1980 1.72 2.25 2.39 2.23. 4 115.9. 1979 1.74 2.58 2.25 1.69

                                                                        ' 1980                        1.70                  2.36               2.25           1.71 116.6                        1979                      1.51                 2.67                2.07           1.98 1980                    -1.65                  2.21                1.95           1.98               ,

Analysis of Variance:

                                                    -Source                                       df               ss                   ms                    F
                                         . Station                                                 .2             0.84                 0.42            11.97****

Month 3 11.97.- 3.99 114.12**** Year 1 0.22 0.22 6.16*-

                                        ' Station

Month 6 1.30 0.22 6.19****

Station

Year 2 ' O.02 - 0.01 0.31N3 ,

i ~

                                      - Month

Year 3 1.01- 0.34 9.61****

Station

Month
Year 6 0.31. .0.05 1.46Mi 4.20 0.03 Error 120-4

                                        . Total-                                                 143            19.85 i
                                         *Significant for a = 0.05--                                                                                                             i
                                         ****Significant for'a = 0.001
              .y-i

. y\-

                                                                                                          ;4-36.

4 h e, e .. ,p ; e , ,, ,u.. . , . , . , 0.

                                                                            , . . - , , ,      '..,>,m      ..;,,-,,,,.,-,

e , - .Av, , an -L-,,-,.~, ,,

                      .      - ~ ,               .- . - _      .
                                                                    ..~     . _ .                 - -_        - - _ . _ - -             .. . -

H

10 HNP ANNUAL REPORT T

TABLE 4.3-10 NUMBERS OF INDIVIDUALS COLLECTED IN PETERSEN SAMPLES DURING 1980 Station Taxa 115.5 115.9 116.6

                                . *Ephemeroptera                                                                                   1
                                                                                              ~

, *Ileptageniidae 1 1 Caenis sp. 10 i Baetis sp.; .1 2

                                   *Plecopteray                                            2~                                      8 e                                       *Perlidae                                           3                                    12 Nemocapnia sp.                                    1 i                                          s-Coleoptera
                                       *Elmidae Larvae                                     1 c                                       .Stenelmis sp. Larvae                             72-                 56                187
                                   ~ Trichoptera
                                       *Hydropsychiidae                                   .1
                                       ' Macronema sp.                                     1-lCheumatopsyche sp.                                '2
                                      *Leptoceridae                                                                                3
                                       ' Nectopsyche sp.                                                       3                   2 Decctis sp.                                                             1 Diptera
                                     '* Ceratopogonidae                                  52                  29                 61

Chironomidae 114 125 325

                                      *Simu11dae                                                                                   1 Mollusca:                             '

1-*Pelecypeda. 32 Corbicula sp. 92 143- 281

                                ' Annelida.-
                                      *011gochaeta                                      .22                 130                281             -.
                          ^-

Platyhelminthes

                                      *Planariidae                                                                                 1-

Trematoda. .45- 12. -101-

           -- .                    -' Arthropoda                        '

Copepoda. 1 2

E'= -

                                      *Isopoda                                                                                     1.
                                      *Amphipoda-                                                              1 :.

4 , t t A

L 9- TABLE 4.3-10 (Con't.) Station Taxa 115.5 115.6 116.6

                             *Hydracarina                            2
                             *Collembola                             2               1                3
                        *Nematod2-                                   1               1                3

, *Rhynchocoela Prostoma rubrum 12 2 1 d

                        *Were not identified beyond the indicated taxonomic level.

l f P d .; i

@ l 4-38 !

A. v

  ,    . . ~ - . . _ , .           . , _                                                                      ,

i 1 ,n\ C/ HNP ANNUAL REPORT TABLE 4.3-11 SPECIES, TOTAL NUMBERS, AND PERCENT COMPOSITION OF ORGANISMS COLLECTED IN PETERSEN SAMPLES AT STATION 115.5 DURING 1980 Total Number Percent Date Taxa Of Organisms Composition 01/31/80 Nemocapnia sp. 1 0.7 Steneimis sp. Larvae 13 9.5 Ceratopogonidae 4 2.9 Chironomidae 48 35.0 Corbicula sp. 14 10.2 Trematoda 55 40.1 Collembala 2 1.5 04/28/80 Baetis sp. 1 2.0 Ceratopogonidae 2 4.1 Chironomidae 25 51.0 Corbicula sp. 6 12.2 011gochaeta 2 4.1 ,. 3 Trematoda 12 24.5 () Nematoda 1 2.0 07/21/80 Plecoptera 2 1.2 Elmidae Larvae 1 0.6 Stenelmis sp. Larvae 6 3.6 Hydropsychidae 1 0.6 Ceratopogonidae 32 19.4 Chironomidae 6 3.6 Pelecypoda 32 19.4 Corbicula sp. 55 33.3 011gochaeta 19 11.5 Trematoda 11 6.6 10/06/80 Per11dae 3 1.8 Stenelmis sp. Larvae 53 32.5 Macronema sp. 1 0.6 Cheumatopsyche sp. 2 1.2 Ceratopogonidae 14 8.6 Chironomidae 35 21.5 Corbicula sp. 17 10.4 011gochaeta 1 0.6 Trematoda 23 14.1 Prostoma rubrum 12 7.4 Hydracarina .2 1.2 o, 4-39

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

l O- HNP . ANNUAL REPORT TABLE 4.3-12 i i-SPECIES, TOTAL NUMBERS, AND PERCENT COMPOSITION OF ORGANISMS COLLECTED IN PETERSEN SAMPLES AT STATION 115.9 DURING 1980 Total Number Percent Date Taxa Of Organisms Composition 01/31/80 Stenelmis sp. Larvae 1 14.3

                                                 , Chironomidae                                                    1              14.3 Corbicula sp.                                                   5              71.4 a

04/28/80 Ceratopogonidae 5 2.6 Chironomidae- 79 40.5 ' Carbicula sp. 15 7.7 011gochaeta 87 44.6 Copepoda 1 0.5 Amphipoda 1 0.5 Trematoda 6 3.1 Nematoda 1 0.5

07/21/80 Heptageniidae . 1 0.7 s, : Stenelmis sp. Larvae 17 12.3 Ceratopogonidae 23 16.7-Chironomidae 12 8.7 Corbicula sp. 52 37.7 011gochaeta 28 20.3. , -Trematoda 4 2.9 Collembola 1. 0.7 10/06/80 ' Stenelmis sp. Larvae 38 22.9 Decetis sp. 1 ~0.6

Nectopsyche sp. 3 1.8 2 Ceratopogonidae 1 0.6 Chironomidae 33 19.9-Corbicula sp.- 71 42.8 r

011gochaeta 15 .9.0 Trematoda 2 1.2

Prostoma rubrum . 2 1.2 I

  -v n

4-40 M *-~e- , .mc . g + - -

                                                                  . - . , . ,  y     g  , .,  y     ,p. p      - - ,

y y , ,g

HNP ANNUAL REPJRT TABLE 4.3-13 SPECIES, TOTAL NUMBERS, AND PERCENT COMPOSITION OF ORGANISMS COLLECTED IN PETERSEN SAMPLES AT STATION 116.6 DURING 1980 Total Number Percent Date Taxa Of Organisms. Composition 01/31/80 Stenelmis sp. Larvae 4 13.3 Ceratopogonidae 1 3.3 Chironomidae 2 6.7 Corbicula sp. 17 56.7 Trematoda 4 13.3 Collembola 2 6.7 04/28/80 Baetis'sp. 2 0.4 Plecoptera 1 0.2 Stenelmis sp. Larvae 1 0.2

                         -Ceratopogonidae                                 23           5.7 Chironomidae-                                  264'        65.0
                         -Simulidae                                          1         0.2 Corbicula sp.                                   26           6.4
 )s                       011gochaeta~                                    69         17.0 ag _)                    Copepoda                                           2         0.4
                         . Isopoda ..                                        1         0.2 Trematoda.                                      14           3.4
                         -Nematoda                                           2         0.4 07/21/80      -Caenis sp.                                      10           2.4
                         -Plecoptera        .

7 1.7

Stenelmis sp. Larvaez 80- 19.2 Nectopsyche sp. 1- 0.2

                        ~Leptoceridae.                                       3         0.7 Ceratopogonidae                                 35           8.4 Chironomidae                                    27           6.4 Corbicula sp.                                  140         33.6 011gochaeta                                     85         20.4
                         -Trematoda-                                      27           6.5 Nematoda                                           1       '0.2 Collembola-                                        1         0.2 10/06'/80     'Ephemeroptera.                                     1         0.4 .

Perlidae- '

12. ' 4. 7 '

LStenelmis sp. LErvae

                                                                      .'iLZ "        39.8 Nectopsyche'sp.                                    1         0.4 Ceratopogonidae                                    2.        0.8
                        . Chironomidae                        .           32-        12.5
  . ..                    Corbicula sp.'.

198' 38.3 f~') . - 011gochaeta- ' 6 '2.3-A> . Planariadae - -1 .0.41 Prostoma rubrum _ 1~ 0.4 41' ,

[i A/ periods ranging from 3.6% to 65.0% of the organisms collected during any particular survey. Oligochaetes composed 0.0% to 44.6% and Corbicula sp. 6.4% to 71.4% of the total organisms collected for any particular survey. Stenelmis sp. larvae were also abundant and ranged from 0.0% to 39.8% of the total organisms collected on any particular su rvey. Species diversity values for Petersen samples taken at HNP during 1979 and 1980 are presented in Figure 4.3-2. The Petersen HBAh values for April, 1980, demonstrated a decrease similar to that found in the Dendy values. Chironomidae accounted for 51% (115.5), 41% (115.9), and 65% (116.6) of the total organisms collected during April, 1980; thus causing the depressed HBAR values. The low HBAR for Station 115.9 in January, 1980, was due to 71% of the sample being composed of Corbicula sp. Comparison of the 1979 and 1980 HBAR values shows them to be generally similar. Results of the ANOVA performed on the Petersen data are presented in Tables 4.3-14 through 4.3-16. Factors analyzed were the same as those for Dendy data. This analysis also showed significant interactions which precluded detecting significant differences among main effects (year, station, and month). 4.3.4 Summary

    ,,      When the data obtained from Dendy and Petersen samples for 1979 and 1980 at HNP are compared with respect to relative abundance, number of

(#

'~

taxa, HBAR, and number of individuals, they indicate a healthy benthic macroinvertebrate community both upstream and downstream from HNP. Seasonal and yearly population cycles are also in evidence. Based on the results of these studies, HNP Units 1 and 2 ha;e had no detectable effects on the benthic macroinvertebrate populations, nor have they created an objectionable or damaging pollution condition in the Altamaha River in the vicinity of HNP. This completes the requirements set forth by the NPDES Permit No. CA-0004120 and'the 316(a) demonstration plan of study and completion sche-dule approved by the Georgia Environmental Protection Division (EPD). In accordance with the NPDES permit, a final report will be submitted to the Georgia EPD for review and comment. Upon approval of the study, the NRC will be notified.

  !    4 4-42 i

,- \ HNP ANNUAL REPORT TABLE 4.3-14 AVERAGE VALUES AND ANALYSIS OF VARIANCE FOR HBAR DATA FROM PETERSEN SAMPLES COLLECTED DURING 1979 AND 1980 Station Year Jan. Apr. Jul. Oct. 115.5 1979 0.86 0.58 2.02 1.60 1980 1.26 0.95 1.72 1.80 115.9 1979 0.71 0.42 2.06 2.08 1980 0.20 0.93 1.70 1.91 116.6 1979 1.00 0.55 1.97 1.10 1980 0.75 1.77 2.30 1.47 Analysis of Variance: Source df ss ns F ,e 3 Station 2 0.31 0.155 0.39NS (_/ Month 3 32.63 10.88 27.37<*** Year 1 0.75 0.75 1.88NS Station

Month 6 6.45 1.08 2.71*

Station

Year 2 1.64 0.82 2.06NS Month
Year 3 3.57 1.19 2.99*

Station

Month
Year 6 1.93 0.32 0.81NS 3*

Error 107 42.52 0.40

        - Total                   130         90.14
         *Significant for a = 0.05
         ****Significant for a = 0.001
                                     +

e--, \ / 4-43

m (v) HNP ANNUAL REPORT TABLE 4.3-15 AVERAGE VAL [ -- "U " SIS OF VARIANCE FOR NUMBER OF TAXA DATA FROM PEh m m3 COLLECTED DURING 1979 AND 1980 Station Year Jan. Apr. Jul. Oct. 115.5 1979 3.0 2.0 6.0 5.0 1980 3.8 3.0 5.2 4.6 115.9 1979 2.0 1.8 6.5 7.0 1980 1.2 3.8 5.0 5.2 116.6 1979 2.5 1.8 6.3 4.0 1980 2.2 5.8 7.2 5.0 Analysis of Variance: Source df ss ms F g- Station 2 2.43 1.22 0.36NS 's_ / Month 3 282.14 94.05 27.68**** Year 1 3.67 3.67 1.08NS Station

Month 6 50.34 8.39 2.47*

Statton* Year 2 20.25 10.12 2.98NS Month

Year 3 42.73 14.24 4.19**

Station

Month
Year 6 14.33 2.39 0.70NS Error 107 363.57 3.40 Total 130 788.31

     *Significant for n = 0.05
     **Significant for a = 0.01
     ****Significant for a = 0.0001
<~ .

t - 4-44

r

   >O                                                                                        HNP ANNUAL REPORT s

TABLE 4.3-16 ^ AVERACE VALUES AND ANALYSIS OF VARIANCE FOR NUMBER OF INDIVIDUALS (LOG (NUMBER OF INDIVIDUALS + 1)) DATA FROM PETERSEN SAMPLb COLLECTED DURING 1979 AND 1980 f. Station- Year Jan. Apr. Jul. Oct. i 115.5 1979 '0.84 0.67 1.55 1.64 1980 1.21 0.93 1.43 1.38 115.9 1979 0.84 0.64 1.83 1.55 , 1980 0.37 1.23 1.38 1.48 i 116.6 -1979 0.87 .0.60 1.84 ' 1.44

                                                         .1980                   0.64                          41.56                       1.87.                             1.61 Analysis of Variance:
                                            . Source-                     df.                         ss                      ms                                             F Station                                    2'                   O.43                      0.22'                                     1.03NS
                                 -Month-                                      3                   17.34                      5.78                                  27)37****

Year 1. 0.14 0.14 0.64NS Station

Month. 6 1.71 0. 28 ' - 1.35NS.

Station

Year 2 0.59 0.24 -1.41NS-Month
Year' 3 3.20' 1.07 5.05***

                                 . Station

Month
Year . 6 1.65- . 0.28 1.30NS

                                . Error                                 107                       22.60                     0.21
                                - Total                                 130.                    ' 48.03                                                                                               ,

t

                                  *Significant for'a = 0.05
                                  ****Signifi' cant for a = 0.001 d

E ,7

   .a_/                                                                    ,

,4-45'

            .                                                                                                                                                                                                           +
     '*y          , M,      -+g     f     y      T      y     y- ( g y       Tr  f   v w- r#r 1     y    (     = pmgwy 9         a9p q % ++f4y-F t " - we'-py fY-fggyes         -wie**s-. y     + %   =4-W (tv-"Wt'"

,m \.

HNP ANNUAL REPORT 4.4 Aerial Remote Sensing 4.4.1 Specification Aerial remote sensing of the HNP site was conducted according to the HNP-2-ETS 3.1.2.2.1 as follows: Plant communities of the site shall be aerially photographed to detect and assess the significance of damage, or lack thereof, related to deposition of cooling tower drift. IR photographs and vegetation reconnaissance in the drif t field are the methods recommended for detecting possible adverse ef fects of drif t deposition on vegetation. 4.4.2 Results and Discussion Color and color infra-red aerial photographs were made of the HNP site at approximately 2:00 p.m. on November 2,1980. A Zeiss RMK 15/23 6-inch focal length mapping camera was used with Kodak aerochrome infra-red 2443-Estar base film. The prints are stereoscopic pairs with 1" = 1,200' scale. Flight altitude was approximately 7,300 feet. The film

T     is sensitive to green, red, and infra-red. The photographs were examined

( / with a stereoscopic viewer for the occurrence of stressed vegetation related to deposition of cooling tower drift. No areas of dead or stressed vegetation were observed on the IR aerial photographs; therefore, no field reconnaissance of the site was necessary. These aerial photo-graphs indicate that the cooling tower drift from HNP has had no notice-able effect on the plant communities in the drift area. 4-46

HNP ANNUAL REPORT 4.5 References

1. Ellis, M. M., B. A. Westfall, and M. D. Ellis. 1946. Determination aof water quality. U.S. Department of Interior, Fish and Wildlife Service Res. , Rep. 9. 122 pp.

2.- Georgia Environmental Protection Division. 1974. 'Pages 701-731 in Rules and regulations for water quality control, chapter 291-3-6, revised June, 1974. Georgia Department of Natural Resources, Atlanta, Georgia.

3. Georgia Power Company. '1974. Edwin I. Hatch Nuclear Plant - Unit No. 1, semiannual environmental surveillance report No. 1, period ending December 31, 1974. Georgia Power Company, Atlanta, Georgia.

4. Georgia Power Company. 1975. Edwin I. Hatch Nuclear Plant - Unit No. 1, annual environmental surveillance report No. 2, January 1 -

December 31, 1975. Georgia Power Company, Atlanta, Georgia.

5. Georgia Power Company. 1976. Edwin I. Hatch Nuclear Plant, annual environmental surveillance report No. 3, January 1 - December 31, 1976. - Georgia Power Company, Atlanta, Georgia.

x'

6. Georgia Power Company. 1977. ' Edwin I. Hatch Nuclear Plant, annual

environmental surveillance' report for calendar year 1977. Georgia Power Company, . Atlanta, Georgia.

7. Georgia Power Company. 1979. Edwin I. Hatch Nuclear Plant, annual environmentali surveillance report for calendar year 1979. Georgia

                     . Power Company," Atlanta, Georgia.

t- .I 1 4 . L/ ! p 4 ,

            ,     y       ,- g - - r -w , s-       y -     s                 , , - - - . ,e-- ,. y , ---r---

O 30 = ' 29 - 28 . i 27 - 26 - 25 - 24 - 23 - 22 -

   $ 21 -

g 20 - 5 19 - 84 <> 18 - 17 - g 16 - h 15 - f 14 - 13 - 12 - 11 - 10 - 9-8- 7-6- I I I i 1 I I I I I I I J F M A M J J A S O N D MONTH GEORGIA POWER COMPANY EDWIN I. HATCH NUCLEAR PLANT (~ ANNUAL REPORT 1980 WATER TEMPERATURES FOR THE ALTAMAHA RIVER AT THE BEGINNING OF EACH IMPINGEMENT SURVEY AT HNP FROM JANUARY, 1980-DECEMBER, 1980. FIGURE 4.1-1

30 - 29 - 28 - 27 - 26 - 25 - 24 - 23 - 22 - $ 21-M 2 20 - 19 - 6 W 18 - t i g g 17-g 16- < 15 - 14 - 13 - 12 - 11 - 10 - , 9-8- 7-6- I I I i i i i 3 i e i ! J F M A M J J A S O N D MONTH GEORGIA POWER COMPANY EDWIN I. HATCH NUCLEAR PIANT ANNUAL REPORT 1980 WATER TEMPERATURES FOR THE ALTAMAHA RIVER AT THE END OF EACH IMPINGEMENT SURVEY AT HNP FROM JANUARY,'1980-DECEMBER, 1980. FIGURE 4.1-2

O - 82 -

      ' 81-80 -

79- ' 78 - 77 - m 76-U 75 - E v 74..

  !    73-                   I N   72 -

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O' $ g 69- <> 68 - 67-66-65-64 - 63-1 1 1 I I I I I I I I I J F M A M J J A S O N D MONTH GEORGIA POW ER COMPANY EDWIN I. HATCH NUCLEAR PLANT ANNUAL REPORT 1980 RIVER ELEVATION FOR THE ALTAMAHA RIVER AT THE BEGINNING OF EACH IMPINGEMENT SURVEY AT ILNP FROM JANUARY, 1980-DECEMBER, 1980. FIGURE 4.1-3 w w g nm. ~

                                                                                   .n   m  --     w --

O 82 - o 81 - 80 - 79 - l 78 - 77 -

     -   76 -

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8 73 = H I 72 - b 71-g 70= E " 69 " 68 = 67 = 66 = 65 = 64 - 63 = I 3 I I I I I I I I I I J F M A M J J A S O N D MONTH GEORGIA POWER COMPANY EDWIN I. HATCH NUCLEAR PLANT ANNUAL REPORT 1980 (--)g L RIVER ELEVATION FOR THE ALTAMAHA RIVER AT THE END OF EACH IMPINGEMENT SURVEY AT IC.'P FROM JANUARY, 1980-DECEMBER, 1980. FIGURE 4.1-4

O I DAY NIGHT --- 34 - 32 - 30 - 28 - m 8 26 - 24 -

                                        ,              /a p*

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 'q                                                                                   ANNUAL REPORT 1980 y/

AIR TEMPERATURES FOR THE DAY AND NIGHT ENTRAIN-MENT SURVEYS ON THE ALTAMAHA RIVER AT H57 FROK ' l ! FEBRUARY,1980-SEPTEMBER, 1980.

l FIGURE 4.2-1 l

O DAY NIGHI --- 32 - Et, 30 -

28 -

26 - n S 24 w 22 -

                                   /
        $     20 -

f

'~

h 18 - b H 16 - ' g 14 - ta y 12 - 3 10 -

METER MALFUNCTION 8-6-

I I I I I I I i 13 18 16 20 17 14 11 17 F M A M J J A S l l MONTH 1 l l GEORGIA POWER COMPANY l EDVIN I. HATCH NUCLEAR PLANT ANNUAL REPORT 1980 j 'v WATER TEMPERATURES FOR THE DAY AND NIGHT EN-l TRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT HNP i FROM FEBRUARY, 1980-SEPTEMBER, 1980.

                                                 ,_                                           FIGURE 4.2-2

l DAY - NIGHT ---

METER MALFUNCTION 10 -

k 9-if R

       $    8-              /5 fT V

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                           /   's
                                    \                -4

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       $*  6-         /

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I d 5-3 I I I I I I i 13 18 16 20 17 14 11 17 F M A M J J A S MONTH l l GEORGIA POWER COMPANY EDWIN I. HATCH NUCLEAR PLANT l ,3 ! O ANNUAL REPORT 1980 l DISSOLVED OXYGEN CONCENTRATIONS FOR THE DAY AND NIGHT ENTRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT HNP FROM FEBRUARf,1980-SEPTEMBER, 1980. FIGURE 4.2-3 i

O DAY NIGHT --- 7-e e

                               %          e       %
                       /
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I l GEORGIA POWER COMPANY l EDWIN I. HATCH NUCLEAR PLuiT f) x_/ ANNUAL REPORT 1980 pH VALUES FOR THE DAY AND NIGHT ENTRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT 10.? F"DM FEB-l RUARY, 1980-SEPTEM3ER, 1980. FIGURE 4. 2-4 I I

O 140 -

                                                                                          ?
                                                                                       /

130 - /

120 -

n [ 110 - '

           $                                                         /

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                                      /

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V 30 - L I I I I I I I 13 18 16 20 17 14 11 17 F M A M J J A S MONTH GEORGIA POWER COMPANY EIMIN I. HATCH NUCLEAR PLANT ANNUAL REPORT 1980 [x_/-

SPECIFIC CONDUCTANCE FOR THE DAY AND NIGFJ l ENTRAINMENT SURVEYS ON THE ALTAMAHA RIVER AT HNP FROM FEBRUARY,1980-SEPTEMBER,1980. FIGURE 4.2-5

O O O i i l South North Bank Bank Intake I I L i i I i

                                                                                                         .4  .4    .5  .5
                                                                                                         .4                      *
                                                                                                             .3    .5
                                                                                              .6             .3    .4
                                                                                                                       .5  .5 3    '9
                                                                                                                              .4 3                                 .4 g                                      .5 v
                                                                                         .c  1.2                              .4 g                                       .5 i                                                                                             1.5 3.8 GEORGIA POWER COMPANY EDWIN 1. HATCH NUCLEAR PLANT ANNUAL REPORT 1980 ALTAMAHA RIVER CROSS SECTION AND VELOCITY PROFILE FOR RIVER ELEVATION 19.7 m.

FIGURE 4.2-6

m T$> kMit f)++/ TEST TARGET (MT-3)

                                   %*4 1.0   EDE EA m

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                                                                                                                         .6 .6 0                                                      .5 4

t 2.7 g .5 .6 . E 4 x 3.0 .5 ) $ 6 3 3.4 3.7 ,i 4 ( EORGIA POWER COMPANY EDWIN I. IIATCH NUCLEAR PLANT ANNUAL REPORT 1980 4 ALTAMAHA RIVER CROSS SECTION AND VELOCITY PROFILE FOR RIVER ELEVATION 21.5 m. i FIGURE 4.2-7

l

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I l 1 a 1 i 0 HNP t ANNUAL REPORT i t CHAPTER 5 l ADMINISTRATIVE CONTROLS i' TABLE OF CONTENTS , i. i Section Title Page 5.1 SPECIFICATION 5-1 i 5.2 DISCUSSION 5-1 ! I f l i

t k k

l 9 5 4. i k E e 5-i

.q

. : V yy

 ,                                                 ANNUAL REPORT

5. ADMINISTRATIVE CONTROLS 5.1 Specification

                  -In accordance with Section 5.7.1 of the HNP-ETS, Units I and II, the HNP Annual Environmental Surveillance Report will include a sammary of: all instances of Environmental Technical Specifications (ETS) non-compliance and corrective action taken, changes in federal and state s                    permits and certificates, changes in the Environmental Program Descrip-tion Document (EPDD), changes in station design or operation which could involve an environmental impact, changes to the ETS, and copies of all reports regarding stations discharges made in accordance with NPDES Permit No. GA-0004120.

5.2 Discussion According to Section 5.5 of the ETS, the licensee shall comply with the requirements set forth in the. currently applicable 401 certification dated December 22, 1972, and amendments thereto issued to the licensee by the Georgia Environmental Protection Division.

                ' Contrary to the above, two violations of.these requirements occurred

('ih

   - 4. .-     Ld uring 1980. Both instances involved exceeding limiting valuta for free residual chlorine. The violations occurred on May 12, 1980, and June'19,31980, and are documented in Section 1.4.2 of this report.

I An. organizational change was made in 1980 relating to environmental

activities as depicted in Figure 5.2.1 of the ETS. The change invcived the transfer of Nuclear Engineering from Power Supply Engineering and

               . Services to Power Generation. In accordance with Section 5.2 of the
               - Hatch ETS, the change was ' reported to the Nuclear Regulatory Commission (NRC) within 30 days, via a letter dated February 5,1980, from W. A.

2 Widner, Georgia Power Company Vica President and General Manager of-Nuclear Generation, to James P. O'Reilly, NRC Region 2, Atlanta.

               'There were'no changes.to-federal-or_ state permits and certificates in 1980. There were also no changes to the EPDD. No changes in station design or operation occurred during the year which could involve an
               ~ environmental effect.
                  . Cop'ies of all reports.regarding-station discharges made in accordance with NPDES Permit No. GA-0004120 are included in Appendix A.

Rfm _ b s_/ , c 5-1.

. O
,                                           HNP ANNUAL REPORT f

I T i 4 l i i } Appendix A i NPDES Operation Monitoring Reports l Plant Edwin I. Hatch ' 1980 l .. I s O

w r,...rv.u ,;m,m 2:0 YextJwc ti wt Pv,t Othcc Cox 4',15 Atbnta. Ccorja 7,303 Telepnuno 404 522-(CG0 Power Supply Engineerin2 and Services C CI r,. ,r . va . .>- April 14, 1980 Mr. Gene B. Welsh, Chief Water Protection Branch Environmental Protection Division 270 Washington Street, S.W. Atlanta, Georgia 30334

                                          -Re: Plant Arkwright                       - NPDES Permit No. GA 0026069 Plant Bowen                       - NPDES Pemit No. GA 0001449 Plent Brar.ch                     - NPDES Permit No. CA 0026051
                                                \ Plaat Ha=mond                      - NPDES Permit No. GA 0001457 APlant Hatch                          NPDES Permit No. GA 0004120 Plant McDonough-Atkinson - NPDES Permit No. GA 0001431 Plant McManus                     - NPDES Permit No. GA 0003794 Plant Mitchell                    - NPDES Permit No. GA 0001465 Plant Wansley                     - NPDES Permit No. GA 0026778 Plant Yates                       - NPDES Permit No. GA 0001473

Dear M'r. Welsh:

h . As required by the above referenced NPDES permits, we hereby submit the Operation Monitoring Reports for each of the corresponding power plants for the quarter ending March 31, 1980. If you have any questions or comments, please advise. Sincerely, T. E. Byerley Manager of. Environmental Affairs CMH/mw e. Attachments-xc: W. M; Jernigan (W/O' Attachments) i bc:' (All W/O Attachment) J..H. Boykin D. O. Foster r3 O. C. Rittenhouse (w/ attachments)

            ! ).                  R.' H.' Bohler
 .,_2_, .

y

QUARTERLY OPERATIoS MONITORING REPORT ~

   'SG eorgia. Power Company.                                             From: 01-01-80
      < Plant Hatch-                                                        To: 03-31-20 P.O. Box 4545                                            Permit Number:   000tl20 Atlanta, Georgia -30302 Discharge Location: 001A, - Low Volume Waste (neutralization tank)

Type of. Sample: Grab Frequency of Analysis: 2/mo

      . Parameter:                    Suspended Solids        oil & Grease cg/l   -

cg/l Avg.- 30 Avg. 15 Limits: Max. 100 Max. 20

     'Date
       '~o1-07-80                            99.o                  <5 01-21-80'                            40.o                  <5

'02-05-80 32.6 <5 02-18 51'.2 <5 103-03-80 0.6 ,

                                                                   <5 b 3-17-So                             53.8                    5 Number of Sa=ples:                    .6                     6 Average Value:                        46.41                   5 Maximi:= Value-                       99.o                    5 Mini =um Value:                        .o.6                 <5 ILimits-Exceedeo:'                        1                    0 Notes: cl) The high suspended solids at this discharge.primarily result frc= precipitation of calcium sulfate in'the regeneration waste.

(7 - .\ ./ g 9 h

Page'2 of 8 i QUARTERLY OPERATION MONITORING REPORT

 'G:orgia Power Company                                               From: 01-01-80 Plant Hatch                                                           To: 03-31-80 P.O. Box 4545 Atlanta, Georgia       30302                              Permit Number:   0004120 Discharge Location:       001A 2 - Low Volume Waste (pressure filter backwash)

Type of Sample: Grab Frequency of Analysis: 2/mo. Parameter: Suspended Solids Oil & Grease mg/l mg/l Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Location Date Filter A 01-07-80 0.1 <5 Filter B 01-07-80 0.0 <5 Filter C 01-07-80 0.0 <5 Filter D 01-07-80 0.0 <5 vilter A 01-21-80 0.1 <5 filter B 01-21-80 0.4 <5

 ~ Filter C      01-21-80                 0.7                   <5 Filter D       01-21-80                 0.4                   <5 Filter  A      02-05-80                 2.6                   <5 Filter  B      02-05-80                 1.7                   <5 Filter  C     02-05-80                  3.4                   <5 Filter  D     02-05-80                  19                    <5 Filter   A     02-18-80                 5.6                     8 Filter  B     02-18-80                 4.0                     7 Filter   C     02-18-80                 2.0                     6 Filter   D     02-18-80                 1.6                    <5 Filter  A      03-03-80                 0.4                    <5 Filter   B     03-03-80                 0.4                   <5 Filter   C     03-03-80                 0.3                   <5 Filter   D     03-03-80                 0.1                   <5 Filter  A      03-17-80                 2.0                     5 Filter   B     03-17-80                 3.5                     5 Filter  C      03-17-80                 2.0                   <5 Filter   D     03-17-80                 1.4                     9 Number of Samples:                     24                      24 Avirage Value:                          1.4                     5 (g aximum Value:                          5.6                     9 inimum Value:                         0.0                   <5 Limits Exceeded:                        0                       0 F

4 QUARTERLY OPERATION MONITORING REPORT s G'corgia Power Company From: 01-01-80 ~(')PlantHatch To: 03-31-80 P.O. Box 4545 Atlanta, Georgia. 30302 Permit Number: 0004120 Discharge Location: 001B - Cooling Tower Blowdown Frequency of Analysis: 1/wk. Location: Intake Mixing Zone Tower Type of Sample: In Situ In Situ Grab s Parameter: Temperature Temperature Chlorine OF OF mg/l C12 Limits: AT of 50 AT of 50 Avg. 0.2 Max. 900 Max. 900 Max. 0.5

     'Date 01-02-80                        49-                   50                  2 01-09-80                        48                   49 01-16-80                         50                  51 101-23-80                          52-                  52 I')01-30-80

\_- 50 50 02-06-80 44 44 02-14-80 46 47 02-20-80 48- 48 02-28-80 51 52 03-05-80 48 48 14-80 54 54 19-80 56 55 03-26 60 60

    . N' umber of Samples             13                   11 3
     ' Maximum Value                  60                    60 Minimum Value -                 44                    44 Limits' Exceeded                -

0 Notes: 2) NPDES regulations no longer- require reporting of this discharge. However,;see attachment (Hatch Log Sheet 16C) for chlorination data. . h

Y

r s u, , vi o -- ! ' '- QUARTERLY OPERATION MONITORING REPORT t . .

--(GeorgiaPower.. Company From: 01-01-80
- Plant Hatch- To: 03-31-80

. P.O. Box'4545 Atlanta,. Georgia 30302 Permit Number: 0004120 i~ Discharge Location: 001C - Sewage Treatment Plant Type of Sample: Grab I. Frequency of Analysis: 2/yr. 1 ?- Parameter: Sussended Solids 5-Day BOD Free Chlorine

                                                         ' ml/l          mg/l        mg/l C1 2 l

- Limits: Avg. 30 Avg. 30 -; Max. 45 Max. 45 -

j.

i. :Date J

        ~01109-80                                           11.6           11           1.5 i.

I Limits' Exceeded: 0 0 - 1-c i . w. 3 +

t. .

t 1 I 4

h .- i l t lC 3 l ~_;w) \ i

I

                                                                                                   ' WW

Page 5 or 8. QUARTERLY OPERATION MONITORING REPORT (GeorgiaPowerCompany From:01-01-80 Plant Hatch To:03-31-80 P o. Box 4545 Atlanta, Georgia 30302 - Permit Number: 0004120 Discharge Location: 001Di- Liquid Radwaste System (Unit I) Type of Sample: Grab

                     - Frequency of Anal'ysis:

2/mo. Parameter: Suspended Solids oil & Grease pH mg/l mg/l pH ' - Lg Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date 01-09-80 .o.o ~1 8. 2 7.0 01-21-80 0.0 14.1 7.1 02-04-80 0.4 2.7 7.0

;         .02-18-80                              1.8                          4.2            7.0 03-03-80                              0.0                          0.8            7.4 v 3-18-80 o                                     0.0                          8.o            6.9 Number of-Samples                       6                            6              6 Average. Value                        0.4                          8.0 Maximu   Value.                       1.8                        18.2             7.4 Minimum Value                         0.0                          0.8            6.9 Limits Exceeded'                        o                            o               -

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QUARTERLY OPERATION MONITORING REPORT Georgia Power Company- Frcm: 01-o1-80 4

     -p Plant Hatch                                                                                                To : 03-31-80 e      L/P. o. Box 4545 Atlanta, Georgia        30302                                                         Permit Number:                  0004120 Discharge Location:                 001Dz - Liquid Radwaste System (Unit II)

Type of Sample: Grab Frequency of Analysis: 2/mo. 2

        ~ Parameter:                         Suspended Solids                             oil & Grease                           pH mg/l                                       =g/l                pH Units Limits:                                Avg.                 '-3 0                   Avg.          15 Max.                100                      Max.          20 Date 01-08-80                                     < 1.o                                         1.1                        6.9                       .
         ~01-22-80_                                         o.o                                     o.o                         7o o2-04-80                                          0.0                                     o.o                         7.2 02-19-80                                          0.0                                     8.o                         7.o o3-03-8o                                      18.8                                        0.1                         7.5 rwo3-17-80                                        77.8                                        1.3                         7.2 Li
                   ~

Number of samples 6 6 6-

        ._ Average Value                                16.3                                        23 Maximum- Value                             - 77.8                                        8.0                         7 5-Minin's Value                                    o.O                                     o.o                         6.9 Limits Exceeded                                     o                                        o                        . -

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rase t v* v J QUARTERLY OPERATION MONITORING REPORT From: 01-01-Eo L(])GeorgiaPowerCompany To : 03-31-80 Plant Hatch P.o. Box 4545 Permit Number: 0004120 Atlanta, Georgia 30302 Discharge L'ocation: 001E - Combined Plant Waste (Unit 1) t

                       ~ Frequency offAnalysis: 1/wk.

Grab Grab Type of Sample: In Situ Average Free Temperature Chlorine pH Parameter: pH Units

                                                'F           . mg/l C12    ~
                                                                          -                Min. 6.0 Limits:                                                       -                Max. 9.0 Date=

01-02-80 po < o .1 8.0 101-09 48 6.9 01-11 c.15 16-80' 51 0.13 6.9 01-23-80' 52 o.15 7.o

           'ol-30-80                             50                                              7.2 102-05-80                                                    < o .1 02-06                           44                                               6.6 02-12-80                                                    0.10 7.o-48 (302-13                               48                      0.15                     7.o s_/o2-Co-80                                                                                6.8 02-27-80                         - 15 2 o2-29-80                                                  < o .1
         '03-05                             48~                     o.18                     79 03-12                                                                            7.1 03-14-80                            54                    < o .1 03-19-80
                                                               .                                 6.6
         .03-20-80                                                    < o.1 25-80                                                    0.20 03-26-80 6.6 Rumber of Samples                  ;11                           12                    13 Average : Value                                             o.13 Maximum Value                                          0.20                    .8.0 Minimum Value                       44                    <: 0.1                     6.6 Limits Exceeded                    --   .
                                                                           -                       O'
         ; Notes:      3) Temperature: recorder out offservice.because of high river elevation.

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QUARTEKLY OPERATION MONLToRInu REtodT Georgia. Power Company From: 01-01-30 Plant Hatch To : 03 80 C P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001E 2 - Combined Plant Waste (Unit II) Frequency of Analysis: 1/wk. Type of Samples: ,In Situ Grab Grab Parameter: Temperature Average Free pH Chlorine

                                    '~
                                       '?       .'

mg/l C1, pH Units Limits: - - Min. 6.0 Max. 9.0 Date o1-02.-80

o.3.0 7.0 01-09-80 7o

    .01-11-80                                                   0.30 01-16-80                                                  0 35                 7.2
    '01-23-80                                                   0.15                 6.9 01-30-80                                                                       7.2 02-05-80                                                   o.35 02-06-80                                                                        79 02-12-80                                                   0.20 m     02-13                                                                       7.1

( 102-20-80 0.25 7.0

' '02-27-80                                                                          6.4 02-29-80                                                   0.30 03-05-80                                                   0.185                7.5
    '03-12-80                                                                        7o 03-19-80                                                         5 6.5 03-26-80                                                         5 6.5 Number of Samples                                           9                    13 Average Value                                              0.26 Maximum Value                                              o.35                 7.9
   - Minimum - Value                                            o.15                 6.4 Limits-Exceeded                                        .    -

0 Nctes.: 4) See-page 7 for temperature data.

5) No chlorination -- unit off line.

l I. certify that I am familiar with the.information cuntained in this report

   -end that to the best- of my knowledge and belief such' information is true, complete, and accurate..

T. E. Byerley Manager of Environmental Affairs April 15, 1980 JBS:pse b

ATTACHMENT . Georgia Power Company Plant Hatch The following six (6) pages contain ; chlorination data for the cooling tower blowdowns at Plant Hatch. l Ch ,

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                   // ?O                                         CHLORINATORS                           DIOTREND.                               C1                                  CHANGtD                .
                                                                                                                                                                                                                       $      b

____________ ___.____________ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .__.___ .______ ._______2 ____________ ___________ ___ . , t'D OATE FHEOUENCY CL .I NJ EC T NO. 1 NO. 2 DEFORE /FTER FREE mg/l DISC +fARGE DATE IH111At.6 >

   ._____          ._________.      _ _ _2________

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                                                                                                                                                          . _________             _____.         .__________           %gh g
                                                                                                                                                                                                                                                ._g g

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     .__.__        __________.      _______ __ .        .___. __.            .________          _ _____           ______.        .____        ____.       ._________.             ._____        ._________.            i                         >
                                         ^
                                    .__4_tv_____        .da _a. ______5.4. a s                                    ._____.

Co#_,. l_a . ..__________ ______ ..__ ______. 0,. i LIMIT AVC. O.20 2 HR/ DAY

                      .,                                                                                        ,                  MAX. 0.50
                                                                                                .           _____.. ___ __ . __ ..._____                                        _                                                 ;          ,1        1 o                    o n

t's G O MEASURED \T TOWER ONRFLOW DURING CHLOhlNATION CYCLE 5 9 EIs E rn

                                                                                                                                                                                                                            #                      *T r 20
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             ..         Id.Th ,r.c404 520C',3 o                                                                                                          &
                      - Power Suppfy Engineering and Service.                                        Georgia Power no tst*.so ,.. *  ,av July 15, 1980                                               ;

Mr. Gene 3. Welsh, Chief

                           . Water Protection Branch Environ = ental Protection Division 270 Washington Street, S.W.

Atlanta, Georgia 30334 Re: Plant Arkvright NPDES Permit No. GA 0026069 Plant Bowen NPDES Per it No. GA 0001449

!                                             Plant Branch-                    NPDES Per=it No. GA 0026051 Plant Ha==ond                   NPDES Permit No. GA 0001457 t Plant Hatch                       NPDES Per=it No. GA 0004120 Plant McDonough-Atkinson        NPDES Per=it No. GA 0001431 Plant McManus                   NPDES Permit No. GA 0003794

. Plant.Mitchell- NPDES Permit No. GA 0001465 Plant: Wansley . NPDES Permit No. GA 0026778

j. Plant Yates NPDES Permit No. GA 0001473 qG

Dear Mr. Welsh:

As required _by the above referenced NPDES permits, we-hereby sub=it the Operation Monitoring Reports for each of the corresponding power. plants for the quarter ending June 30, 1980. If you have'any questions or comments, please advise. 4 Sincerely,

                                                                       ;T. E.       yerley Manager-of Environmental Affairs
                          . CMH:bjk.

i

                           -Attachments
                          .xc:      W.'  M.'Jernigan.(Without Attachments)

.1 L J. 6 n

_ W

        ,_                        .-           .- - . - . - - _.-. . - . . . _ . . - .- - _ - . - - . . .                                          -       _~. . . .... .. .. . . - - .      .-

1 l . ' bc .. (All Without Ar ,chments) f ' J. H. Boykin i

D. O. Foster ! i

                        ' 1:                                                    O. C. Rittenhouse (With Attachments)

W. T. Nickerson H. C. Lowe l R. L. Boatright j J. R. Jordan I j C. P. Stinespring

r. 'R.'H. Bohler >

}, -J. C. Causey, i t' C. L. Donaldson, Jr. 1 . f . A. R. Perdue, Jr. t 3 4

                                                                             - W.-A. Widner                                                                                                           '

O. C. Smith ;

!'                                                                            'P. S. Nix j
                                                                             - R. L. Boyer                                                                                                            r i

R. A. Master-4

                                                                             ' M. Manry-                                                                                                             1 I.                                                                              R.LA.-Pollock

l. W. L. Walthall- lf A.' C. Daniels

j H.'L. Patrick j~ D. T. Loomis . e- i 3 1 f k i 4 4 l l' s k' j ', _ y, 1 - , h.' I e b cf s z> < b t (,

                        +
                 .,? ":'                             .                ..

! c ,,-. n

             . -v r,r . -       -,,,vm,~,v.r,-,,                   yg.,_,,,,h.,,.......w.s,.,ve,,,..-,,m.e ,w.,,,,,m..e,,,,#,...,e,-u,,,,.,.,w.,,#                                       .,e    . -,

                  ~     ~

QUARTEl< OPE'usT10N r mon 11onitiG 1(E. (T C'corgia Power Company S' rom : o}-01-80

c. Plant flatch To: 00-30-80

( JP.O. Box 4545

   '" Atlanta, Georgia                    30302                                          Permit Number: 0004120 Discharge Location: 001A, - Low Volume Waste (neutralization t ae-Type of Sample:              G ra. S Frequency of Analy sis.                     2/mo Parameter:                                    Suspended Solids                Oil & Grease mg/l                            mg/l Limits:                                       Avg.                 30         Avg.         15 Max.                100         Max.         20 Date-                                                                                    '

0h-07-80 2.3 <5 oh-21-So 89 5 <5 05-05-50 23 <5 05-19-Eo 0.1 <5 06-02-80 1.4 <5 r*6-16-So

 ,                                                          5.4                             <5 L/

Iiu:focr of Samples: 6 6 Average Value: 16.8 <5 Maxicum value: 89.5 <5 Minimun Value: 0.1 <5 Exceeding : o O L #

QtfARTERI.Y OPERATION MONLTURING REPORT (~"ieorgia Pow >.r Comp.sny From:0l-01-80 k /lant Ha t e'. To:06-30-80 : P.O. Box' .545

Atlanta.,Guargia 30302 . Permit Number: 0004120 Discharge L'ocation: 001A, - Low Volume Waste (pressure filter backwash)

Type of Sample: Grub Frequency of Analysis: 2/mo.2 Parameter: Suspended Solids Oil & Grease me/l mg/l Limits: Avg. 30 Avg. _ 15 Max. ,100 Max. 20 4 Locktion Date

          ?ilter.A'         Oh-07-80               0.7                   <5
       ,, Filter 3         -Oh-07-30               6.0                     6 Filter C.         02-07-50               :2. 5                   6         -

Filter D Oh-07-90 09 <5 - Filter A- 04-21-30 1.8 <5

         ' Filter B         00-21-30               0.8                   <5 711ter C'      -Oh-21-30                1.2                   <5 ff'dilter-3 21-80.              O.4                   <5 Filter A        .05-05480                0.9                   <5
         -Filter-a          05-05-80               4.1                   <5 LPilter:C-        ~05-05-30               R2. 5                  <5
     ~ Filter-D            05-05-e0                1.7                   <5
        -Filter'A'         05-19-80                2.0                   <5 Filter B.        05-19-80              'O.2                    <5 Filter.C         05-19-80                03                    <5 Filter D-        05-19-80                o.1                   <5
         ' Filter A       .06-02-80                1.7                   <5
        . Filter-B         06-02-80                1.0                 . <5 Filteric         LO6-02-80               .l.2                   <5 Filter D          06-02-80               1.8                    <5
       ; Number or-samples:                         20                    20
  ,      Avoragelvalue:                          -1,6                     5
  ' .Mnximum value:                               6.0                     6 Minimum value:                           .O.1                    <5 Limits Exceeded:                            O.                    O xNotes: 1) Errective 05-12-80 the: required frequency-or analysis for this
    ,jy .              diucharge~was. changed'to once per quarter.
    .q V

Pacc 3 or lo QUARTER. OPERATION MONITORINd REI .T Georgia Power Company From: 04-01-80 Plant !!a t ch To: 0G-30-80 (~)/ P .O . Box 4 545

     -Atlanta, Georgia          30302                                      Permit Number:   0004120 Discharge Location: 001B - Cooling Tower Blowdown Frequency of Analysis: 1/wk.

Location: Intake Mixing Zone Tower Type.of Sample: In Situ In Situ Grab

     ' Parameter:                    ~ Temperature            Temperature            Chlorine CF                       OF              mg/l Clr Limits:                        AT   of       50        AT    of      53'      Avg. 0.2 Max.         90         Max.         90        Max. 0.5 Date 04-02-80                               62                     61 04-09                              E3                     62 05-16-E0                               6L                     6h
      '04-25-80                              67                . 67 kI 04-30                               ~64                      64-05-07-80                              68                      69 05-14-80                               '75                     75 05-22-80                               76-                     76 05-28-80                               73                      73 06-05-80                              -76           .

76 06-11-80 79- 79 06-18-80 81 81 06-25-80 181 18 1 Number ofzSamples: 13 13

    " Maximum Value:                        81                      81 Minimum Value:                         62                      61
    ; Limits J Rxceeded: -                     --                   o
    ' Notes: 2) t!PDES regulations no longer require reporting of this discharge.

fx

 %)                                           ~

e

QUARTEL / OPERATION MONITORING Rt_.JRT Georgia Power Company From: 04-01-80 Plant llatch To: 06-30-80 0PO. . Box 4545 Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001Di- Liquid Radwaste System (Unit 1) Type of Sample: Grab Frequency of Analysis. 2/mo. Parameter: Suspended Solids oil & Grease pH mg/l mg/l pH Units Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date 04-09-20' O.o <5 7.5 21-80 0.0 <5 7.3 05-06-SO- o.o 14,7 7,3

           '05-19-30                                             0.0                                 2.1           7.1

( ) 06-09-50 15 '14.5 7.8 16-80 0.2 <5 73 4 ' ~ Number of. Samples: Average Value: Maximum Value: Minimum Value: Exceeding: M l-

  ./    l'.
   - (__/ -
                       =

1 -

                                  ,c  -

e ve-y--"ge r wv - -

                                                                                          ,.g.---w--           --

           . o-   -- ..                                  -

QUARTERLY OPERATING MONITORING REPORT []v Georgia Power Company From: 04-01-80 Plant llatch To: 06-30-80 P.O. Box 4545

         ' Atlanta, Geo.rgia    30302                               Permit Number:   0004120 001D2 -

Discharge Location: Liquid Radwaste System (Unit II) Type of Sample: Grab Frequency of Analysis: 2/mo. Parameter: Suspended Solids Oil & Grease pH mg/l mg/l pH Units Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date 04-03-80 o.o <5 75 04-24-8G 75 <5 73 05-06-so 0.0 0.8 7.3 05-19-80 0.0 0.5 7.4

?%)

06-02-80 2.2 <5 72 06-16-80 97 <5 7.o Number.of samples: Average .Value: Maximum Value: Minimum Value: iLimits Exceeded: i

 ,f *%
 . \.) -

esm e

                               .                  QUARTERLY OPERATION MONITORING KLi'0"~

i Ceurgio Power Company Fruu: 04-01-H0 ' Plant Hatch To: 06-30-80 Permit Number: 0004120 (~/) P.O. BoxCeurgia Atlanta, 4545 30302 Location: 001E - Combined Plant Waste Type of Sample: In Situ Crab Orab Crab Crab Cenerating Unit: One Two One Two i Temperature Parameter: Average Free Chlorine pH pH 8 F mg/l C12 mg/l C12 PH Units pH Units Limits: - - - Min. 6.0 Min. 6.0 Max. 9.0 Max. 9.0 Date

'04-01-80 6.5 6.7 04-02-80 6.7 6.8 04-03-60 <0.1 <0.1 6.7 6.8 04-04-S0 7.0 6.9 04-05-80 6.8' 6.9

   -ll                                                                                       6.7                  6.8 a 04-05eSO 04-07-80                                                                           6.7                  6.7 04-03-80                                                                           6.6                  6.7 04-09-80                     2                                                     6.7                  6.7 i

10-80 <0.1 <0.1. 6.6 6.8 04-11-80 6.6 6.7 04-12-80 6.7 6.7 + 04-13-80 6.4 6.8 04-14 6.7 6.8 04-15-80 6.6 6.7 04-16-80 64 6.5 6.3 04-17 6.1 . 6.3

          '04-18-80.                                        < 0.' l -         <0.1            6.6                   6.5

( ) 04-19-80 6.6 6.5

         ;04-20                                                                           7.0                   6.9

QUAR"HLY OPERATION MON 1'!OMING MEPut' Gworgia Power Cucipany Fran: 04-01-80 Plant Hatch To: 06-30-80

'~' P.O. Box 4545                                                            Permit Number: 0004120
 - Atlanta Georgia 30302 Location:  001E.- Combined Plant Waste Type of Su=ple:    In Situ              Crab             Crab          Crab             C:ab Cenerating Unit:                        One              Two           One              Two Para ecer:         Te=perature         Average      Free Chlorine        pH              pH
                              'F             me/l C12       mg/l Cl2        PH Units       pii Units Limits:                  -                 -               -

Min. 6.0 Min. 6.0 Max. 9.0 Max. 9.0 Dnte 04-21-30 6.9 6.8 22-SO 6.6 6.6 04-23-30 6.5 6.6 04-24-S0 7.1 7.5 04-25-80 66 '<0.1 <0.1 - 6.5 6.9 { )04-26-80 6.4 7.5 04-27-50 6.4 6.S 04-28 6.8 6.9 04-29-80 6.6 6.6 04-30-30 67 6.5 6.8 05-01-80 05-02-80 -

    '05-03        05-04-80 05-06-80 05-07-80'                -*

6.6 6.8 05-08-80 05-09-80 g. ( j05-10-80

     '05-11-80.

    =-~                   - - * '                                                                    ~~ ~~~

quatu t.Mt.x un.KAT1orrMONITOlt1NU 10}DitT~~~ Ceorgio Power Company Frum: 04-01-HG Plant flatch To: 06-30-80 P.O. Box 4545 Permit Number: 0004120 Atlanta, Georgia 30302 Location: 001E - Combined Plant Waste Type of Sample: In Situ Crab Grab Crab Crab Cenerating Unit: One Two One Two Parameter: Temperature Average Free Chlorine pH Pil

                                         'F             mg/l C12         mg/l Clr              pH Units                            pH Units Limits:                       -                -

Min. 6.0 Min. 6.0 Max. 9.0 Max. 9.0 Date 05-12-80 05-13-SO 05-14-30 75 7.0 6.5 05-15-80 05-16-50 05-17-80 05-18-30 05-19-80 20-80 05-21-80 7.2 6.9

        .05-22-80                      77 05-23-80 05-24-80                                                                                                                         '

05-25-80 05-26-80. 05-27-80 05-28-80 73. 7.0 6.6 29-80 -t n(05-30-80 j

 ' s05-31-8o.

                                           .g...,,       ,
                                                             ._,,..........,%           ..m. , , ,

Georgio Power Company P'lant hatch F rm. : 04-01-ec P. O. Bue. 4545 to: 06-30-eu Atlanta. Georgia 30202 Perwit Numbur: 0094120 m# Locatlun: 001L - Combined Plant Waste Type of Sample: In Situ Crab Crab Crab Crab Cenerating Unit: One Two One Twu Pcra:eter: Temperature Average Free Chlorine pH pH

                                    *F                cg/l Clr                e2/1 C1 2            pH Units         pH Unita Limits:                 -                     -                       -

Min. 6.0 Min. 6.0 Max. 9.0 Max. 9.0 Date 06-01-80 6.6 7.2 06 02-S0 6.4 6.9 06-03-80 6.4 6.7 05-04-30 <0.1 <0.1 6.6 6.4 5 06-05-b0 6.7 7.0 06-06-SO 6.6 7.1 06-07-50 6.5 , 3

          /                                                                                                            6.9 06-08-80                                                                                  6.9              6.9 06-09-50                                                                                  6.7              7.2 06-10-60                                                                                  6.9              7.2 06-11-80                   3 6.9              7.2 06-12-80                                                                                  7.2              7.6 06-13-80                                  < 0.1                     < 0.1                 7.5              7.6 06-14-80                                                                                 7.5              8.2 06-15-80                                                                                 7.5              8.0 06-16-80                                                                                 7.4              7.8 06-17-80                                                                                  7.4              8.0 06-18-80                   3 6.9              7.5 06-19-80                                  < 0.1                      < 0.1                6.8              8.2 06-20-80                                                                                  6.9              8.5 06-21-80                                                                                   8.2              8.2

Pege 10 of 10 QttAk dt.Y OPERMION MON!' LOR 1tJG RLl'ut. Georgia Power Company From: 04-01-80 d Plant !!atch To: 06-30-80 P.O. Bor 4545 Permit number: 0004120 Atlanta, Georgia 30302 Location: 001E - Combined Plant Waste Type of Sacaple: In Situ Crab Crab Crab Crab Canerating Unit: One Two One Two , Parameter: Tamperature Average Free Chlorine pH pH 8 F _ mg/l Cl2 mg/l Cl2 pH Units pH Units Limits: - - - Min. 6.0 Min. 6.0 Max. 9.0 Max. 9.0 2 Dste 06-22-80 8.2 7.5 06-23-80 8.0 8.0 06-24-80 7.7 8.3 3 06-25-80 <0.1 <0.1 7.7 8.4 06-26-80 7.4 7.9 01-27-80~ 7.1 7.5 06-28-80~ 7.6 7.6 06-29-80 7.4 7.7 06-30-80 6.9 7.5 Number of Samples: Average Value: Maximum Value: Minianna Value: Limits Exceeded: N tes:.3) No temperature readings, due to recorder maintenance 4)' No temperature reading, probe out of: water

5) No temperature reading, recorder under water.

I~ certify 'that I am familiar with the information contained in this report and that to the best of my knowledge and belief such information is true, complete, and accurate. f) v-T. E. Byerley Man.y;er of Environmental Af fairs July 15. - 1980

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                     .teenom t.1.11atCn Nuclear I'lant                                                                     ' * * * *
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October 15, 1980
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Mr. Gene B. Welsh, Chief Water Protection Branch Environmental Protection Division 270 Washington Street, S.W. k{g[ 0
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Atlanta, Georgia 30334 Re: Plant Arkwright NPDES Permit No. GA 0026069 Plant Bowen NPDES Permit No. CA 0001449 Plant Branch NPDES Permit No. GA 0026051 Plant Haccond NPDES'Pemit No. GA 0001457 Plant Hate' NPDES Permit No. GA 0004120 Plant McDonough-Atkinson NPDES Permit No. GA 0001431 Plant McManus NPDES Permit No. GA 0003794 Plant Mitchell NPDES Permit No. GA 0001465 Plant Wansley NPDES Permit No. GA 0026778 Plant Yates NPDES Permit No. GA 0001473
Dear Mr. Welsh:
O As required by the above referenced NPDES Permits, we hereby submit the Operation' Monitoring Reports for each of the corresponding power plants for the quarter ending September 30, 1980. If you have any questions or comments, please advise. Sincerely, [ T. E. Byerley Manager of Environmental Affairs CMH:bjk Attachments xc: W. M. Jernigan, Without Attachments)
]%
e- -
be: J. H. Boykin
~O- D. O. Foster
0. C. Rittenhouse, With Attachment)
W. T. Nickerson . H. C.- Lowe . R. L. Boatright J. R. Jordan C. P. Stinespring i R.'H. Bohler i J. C. Causey C. L. Donaldson, Jr.. A. R. Perdue, Jr. W. A. Widner 4 O. C. Smith P. S. Nix, Jr.
1. L. Boyer R. A. Masters M. Manry R. A. Pollock-

W.'L. Walthall l
A. C. Daniels H. L. Patrick ,
.D. T. Loomis t
I' WW
QUARTERLY OPERATION MONITORING REPORT r :orgia Power Company From: 07-01-80
. knt liatch To: 09-30-80 P.O. Box 4545 Atlanta, Georgia 30302 ,
Permit Number: 0004120 Discharge Location: 001A i Low Volume Waste (neutralization. tank) Type of Sample: Grab Frequency of Analysis: 2/mo Parameter: Suspended Solids Oil & Grease
'mg/l mg/l Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date 07-08-80 27.5 <5 2
07-21-80 248 6 08-04-80 09 <5 08-18-80 1.7 <5 09-03-80 79 7 80 2.4 6 Number of Samples: 6 6 Average Value: 60
5.7 Maximum Value: 248 7 Minimum Value: 09 <5 Limits Exceeded: 2 o Not:s: -) The high suspended solids at this discharge primarily result from precipition of calcium sulfate in the regeneration waste.
1.,; a -s------- i Qt'ARTERLY GPERATIoti M0!iITORI?;G REl' ORT
'e la Power Company From: 07-01-Po Icnt llat,h To: 09-30-Po .0. Box 45t5 0004120 .tirnta, Georgia 30302 Permit flumbe r :
Discharge Location: 001A 2 - Low Volume Waste (press,rc filter backwash) Type of Sample: Grab "rcqu ncy of Analysis: 1/Qtr. trcmater: Suspended Solids Oil & Grease mg/l mg/l 'imits: Avg. 30 Avg. 15 Max. 100 Max. 20 "^cntion - Date Filt;r A 08-04-80 3.8 <5 Filt;r B 08-04-80 8.0 <5 Filter c 08-04-80 6.0 <5 ?grD 08-04-80 4.9 <5 ~.' umber of Samples: 4 4 .!varage Value: 57 <5
'.axim4m Value: 8.o <5 Einimum Value: 38 <5 O
Limits Exceeded: O . N
I
.........m .m . v iu Georgia Power Company Plant flaLch From: 07-01-80 P.O. Box 4545 To: 09-30-80 tIanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001B - Cooling Tower Blowdown Frequency of Analysis: 1/wk.
Location: Intake Mixing Zone Type of Sample: In Situ Tower In Situ Grab Parame te r: Temperature Temperature OF Chlorine OF mg/l Cl2 Limits: AT of 50 hT of 50 Avg. 0.2 Max. 900 Max. 90 Max. 0.5 Date 07-02-80 ' 79.3 79.7 2 07-09-80 84.4 84.2 07-16-80 86.2 86.2 07-23-80 83.8 83.8 08-06-80 85.8 86.0 08-13-80 85.1 85.3 08-20-80 85.1 84.9 08-27-80 80.0 79.7 80 82.6 84.2 9-10-80 81.5 81.9 09-17-80 82.6 84.0 09-24-80 82 83 Number of Samples: 12 12 Maximum Value: 86.2 86.2 Minimum Value: 79.3 79.7 Limits Exceeded: 0 0 Notes:
2) NPDES regulations no longer require reporting of this discharge.
V
- _ %,r -age 4 of 8 . QUARTERLY OPERATION M0!!1 TORI:;G REPORT ' Frot.: 07 o C rgia Power Company To: 09-30_.o Plcnt Hatch l P.O. Box 4545 Permit Number: 0004120 . Atlcnta, Georgia 30302 f Discharge Location: 001C - Sewage Treatment Plant { Type of Sample: Grab Frequency of Analysis: 2/yr. Suspended Solids 5-Day BOD Free Chlorine Pcrameter: mg/l mg/l mg/l C12 _ Avg. 30 Avg. 30 Limits: Max. 45 Max. 45 - D7tn 2.8 2.8 0.75 07-08-80 O O Limit: Exceeded: i
~__,I
_,,/
race ; vr o -- QUARTE .Y OPERATION !!CNITORING RF TRT - G:orgia Power Company From: 07-01-80 Plant llatch To: 09-30-80 .'l.o. Box 4545 \-Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Locstion: 001D.- Liquid'Radwaste System (Unit 1) Type of Sample: Grab Frequency of Analysis: 2/mo. Parameter: Suspended Solids oil & Grease pH mg/l mg/l pH Units Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 D9te 07-07-80 51.3 1.0 7.2 07-21-80 30 59 7.2 08-04-80 o.o 6.o 73 08-18-80 25 1.3 7.2 09-02-80 2.27 2.66 7.7 09-16-80 o.o 2.o 7.7 unter or samples: 6 6 6 srage Value: 9.8 31 Maximum Value: 51 3 6.0 7.7 Minimum Value: 0.0 1.0 7.2 Limits Exceeded: o o G A
Pace 6 of A QUARTERLY OPERATING MONITORING REPORT From: 07-01 "o grgiaI'owerCompany To: 09-30 90 PIcnc llatch P.O. Box 4545 Permit Number: 0004120 30302 Atlanta, Georgia , l Di--harge Location: 001Da - Liquid Radwaste System (Unit II) Type of Sample: Grab F requency of Analysis: 2/mo. Suspended Solids oil & Grease pH Parrmeter: mg/l pH Units mg/l Avg. 30 Avg. 15 Limits: 20 Max. 100 Max. Dnto 82.0 4.0 7.3 07-08-80 0.4 7.2 07-21-80 < 1.0 of-04-80 0.0 0.2 7.3 OE 80 4.0 4.2 7.2 00-01-80 0.01 0.2 73 0.0 1.0 7.6 g16-80 6 6 6 Number of Samples: Average Value: 14.5 1.7 M2ximum Value: 82.O h.2 7.6 Minimum Value: 0.0 0.2 72 i 0 0 - Limits Fxceeded: , O L
Y',0 '( o f 7", QUARTERLY OPERATION MONITORING REPvdT horgia Power Company From: 07-01 90 P' 'it llatch To: 09-30J o
<_;. Box 4545 Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001'E 3 Coebined Plant Waste (Unit 1)
Frequency of Analysis: 1/wk. l Iypa of Sample: In Situ Grab Grab Average Free Percme ter : Temperature Chlorine pH
'F mg/l C12 pH Units Lirits: - -
Min. 6.0 Max. 9.0 D^t's 07-02-80 80 < 0.1 6.8 07-09-80 83 < 0.1 73 07-16-80 90 < 0.1 7.0 07-23-80 79 <0.1 7.7 07-31-80 90 <o.1 7.4 g6-80 86 <o.1 7.4 08-13-80 78 <o.1 70 08-20-80 95 <o.1 7.4 08-28-80 90 <o.1 7.4 09-03-80 93 8.3 09-10-80 89 8 7.1 09-17-80 86 8 6.9 09-24-80 92 8 6.7
'Jumber or samples: 13 9 13 .4verar;e Value: 87 <o.1 "aximum Value: 93 <o.1 8.3 ** 1 ni mum Va1ue: 78 <o.1 6.7 '_imits Exceeded: - - o Ltcs: 3) No chlorination during this week. ~
t
. o_ _ _ _
QUAKTEF' " OPERATION MOM 110RIMG REPORT : Georgia Power Company From: 07-01-80 Plant Hatch To: 09-30-80 P, 0 . Box 454) . ( :nta, Georgia 30302 Permit Number: 0004120 l f Discharge Location: 001E 2 - Combined Plant Waste (Unit II) ; Frequency of Analysis: 1/wk. i Typa of Samples: In Situ Grab Grab i Parameter: Temperature Average Free pH Chlorine 5 F mg/l Cl, .pH Units Lic:its : - - Min. 6.0 Max. 9.0 D^to 07-02-80
" <0.1 7.9 07-09-80 89 <0.1 7.2 07-16-80 90 <0.1 6.8 07-23-80 94 <0.1 6.8 07-31-80 * <0.1 7.3 08-06-80 82 <0.1 7.2 08-13-80 88 <0.1 7.1 08-20-80 90 <0.1 7.3 08-28-80 86 <0.1 7.1
$03-80 92 5 7.7 W 80 76 s 6.6 09-17-80 85 s 6.8 09-24-80 92 5 6.7 Numb 2r of Samples: 11 9 13 Av;rege Value: 88 <0.1 Maximum Value: 94 <0.1 7.9 Minimum Value: 76 <0.1 6.6 Limits Exceeded: - - 0 Notes: 4) Sample was not taken because pump was out of service.
5) No chlorination during this week.
I c rtify that I am familiar with the information conta*ned in this report cnd that to the best of my knowledge and belief such information is true, complete, and accurate. T. E. yerley Manager of Environmental Affairs October 15, 1980 JBS:dft/jiw
\ ,='
c ATTACHMENT Q Georgia Power Company Plant Hatch The following six (6) pages contain chlorination data for the cooling tower blowdowns at Plant Hatch. O O Y W
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f C1 O e..-s - ,t.2 . ,- .>s - . . ccorsiaeower n.. wen er. January 14, 1981 n't O Mr. Gene B. Welsh, Chief Water Protection Branch A Environmental Protection Division 270 Washington Street, S.W. Atlanta, Georgia 30334 Re: Plant Arkvright NPDES Permit No. GA 0026069 Plant Bowen NPDES Pemit No. GA 0001449 Plant Branch NPDES Pemit No. GA 0026051 Plant Hammond NPDES Permit No. CA 0001457 Plant Hatch /. NPDES 'Pemit No. GA 0004120 Plant McDonough-Atkinson NPDES Permit No. GA 0001431 Plant McManus NPDES Permit No. GA 0003794 Plant Mitchell NPDES Permit No. GA 0001465
, Plant Wansley NPDES Pemit No. CA 0026778 Plant Yates NPDES Permit No. GA 0001473
Dear Mr. Welsh:
/] As required by the above referenced NPDES Permits, we hereby (f submit the Operation Monitoring Reports for each of the corresponding power plante for the quarter ending Dece=ber 31, 1980.
If you have any questions or comments, please advise. Sincerely, T. E. Byerley Manager of Environmental Affairs CMH:bjk Attachments xc: W.-M.~Jernigan, Without-Attachments)
[)
v e 6 fi
. . be: J. H. Boykin D. O. Foster - N 0. C. Rittenhouse, With Attachment -
W. T. Nickerson R. L. Boatright . .
^
J. R. Jordan C. P. Stinespring R. H. Bohler J. C. Causey C. L. Donaldson,'Jr. ! A. R. Perdue, Jr. W. A. Widner O. L. Smith P. S. Nix, Jr. R. L. Boyer-
R. A. Masters M. Manry R. A. Pollock -
W. L. Walthall A. C. Daniels H. L. Patrick D. T. Loomis f
. O:
( N 9
,o M
Page 11of-7 QUARTisRI.Y OPERATION MONITORING ltEPORT i (mscorgia~ Power Company From: 10-01-80
" Plant lia och To:12-31-80 P.O. Box 4545 Atlanta.. Georgia 30302 Permit Number: 0004120 1 Discharge Location: 001A, - Low Volwne Waste (neut.alization tank)
Type of Sumple: Grab Frequency of Analysis: 2/mo _ Parameter: Suspended Solids Oil & Grease mg/l mg/l Limits:. A /g . 30 Avg. 16 Max. 100 Max. 20 Date' . 10-09-80 21 <3 7 01 10-20-80 <5
-10-80 33 <5 11-19-80. 6- <5 1 -02 50 1 <5
,_ ~12-15-80 31 6 Number:of Samples: 6: (, Average Value: 39 5. Maximum Value:' 70 6 i Minimum Value: 6 <3 I.ini c s Ex c e e d e d : .- 5 0 , t
.1) The ..high^suspenace' solids.at .this discharge'primarily result from Notes:
precipitation.of calcium sulfate in-the regeneration waste. [ .. t-1: 2 t f f]- y., i .,
' eMN*'
N - ' * - - - (-m e e - m. e.
s se % % ges w . ..m , , - --
w.
.. . ~ _ _ _ - . _ _ - . -. . . -.. -. --- . - - . - _ . _ _ _ - - . - . . . - . = . .
Page 2 of 7 a QUARTERLY OPERATION MONITORING REPORT
.p- . Georgia Power Company From: 10-01-80 Plant Hatch To: 12-31-80 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: 0004120
. Discharge ~ Loca ti er.. 001A 2 -
Low Volume Waste (pressure filter backwash) ,. Type of Sample: Grab 4 Frequency of Analysis: 1/Qtr. l Parameter: Suspended Solids Oil & Grease mg/l ma/l
' Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 ,
4 Location ' Date i Filter A 11-03-80 2.9 <5
-. Filter B 03 1.6 <5 ~ . Filter C ~ 11-03-80 3.1 <5 Filter D 11-03-80 2.6 <5 4
i . Number of Samples: 4L 4 ,
. Average Value: . 2. 6 <5
- Maximum Value

3.1 <5 i Minimum Value: 1.6 <5
. Limits Exceeded: ~
, 0 0 P l 4 I k L
'\.). '
r
Pege 3 of 7 QUARTERLY OPERATION MONITORING REPORT 'I]
\
Georgia Power Company Plant Hatch From: 10-01-80 To: 12-31-80 P.O. Box 4545 Atlanta, Georgia 30302 Nrmit Number: 0004120 Discharge Location: 001B - Cooling Tower Blowdown Fre'quency of Analysis: 1/wk. Location: Intake Mixing Zone Tower Type of Sample: In Situ In Situ Grab Parameter: Temperature Tempxcature Chlorine OF OF mg/l C12 Limits: AT of 50 AT of 56 Avg. 0.2 Max. 90 Max. 90 Max. 0.5
~Date 10-01-80 72 73 2 10-08-80 68 68 10-15-80 66~ 67 10-22-80 68 68 10-29-80 62 64 p: 11-05-80 11-12-80 62 64 As 58 60 '11-19 57 57-11-26-80-- 54. 57 12-03-80 54' 54 12-10-80 55 56 ~12-17-80 51 51 24-80 48 48 12-31-80 49 47 Number of Samples: 14 14 Maximum Value: 72 73 -Minimum Value: 48 47 Limits Exceeded: ~
0 Note: 2)' NPDE9 regulations'no longer. require reporting of this discharge. nU _.
' ~
Pags 4:of 7 i~ , QUARTERLY OPERATION MONITORING REPORT
. Georgia Power Company > Plant. Hatch From: 10-01-80 P.O. Box 4545- To: 12-31-80 ; .-Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Locstion: 001Di- Liquid Radwaste System (Unit 1)
Type'of Sample: Grab - ? Frequency of Analysis: 2/mo. j Parameter: Suspended Solids Oil & Grease pH
~ mg/l mg/l pH Units 4
2-Limits: Avg. 30 Avg. 15 ' Max. 100- Max. 20 ,g-Date;
;10-08-80' O.2~ 0.7 7.6 1G-20-80 0.0 0.0 7.4 11-03-80 0.0' 4.2 6.7 11-17-80_ 0.0 13.9 6.7 4
l ' 12-06-80 .3.2 0.0 6.4
. _ 12-15-80 5.3 0.0 7.2 r NJ O
Nurber.of Samples:. 6 6 6
' Average.Value: 1.4 3.1 Maximum Value: -5.3 13.9 7.6
!- . Minimum Value: 0.0 0.0 6.4
, Limits Exceeded: 'O' 0 --
i f. I. i: I] L t i;-.- JOL m , p i I.
.Pags 5'of 7 i
j QUARTERLY OPERATING MONITORING PfPORT t-From: 10-01-8C l'pdPlantGeorgia n Hat _h Power Company: To: 12-31-80 i 'P.O.1 Box 4545
_ Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001D2 - Liquid Radwaste System (Unit II)

' Type of.-Sample: . Grab 1
Frequency of Analysis: 2/mo. Parameter: Suspend'ed Solids Oil & Grease pH mg/l mg/l pH Units Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 1 Date
.7.7 06-80 9.2 10.9 10-20-80. 1.5 0.0 7.6 03 0.0 2.5 ' 6.8 .'11-17-80 :0.0 15.6 6.7 12-01-80~ . 0.6 18.2 7.2
-..__ 12-15 0.5 6.4 7.2
, .Numberiof Samples: '6- -6 6-
.Avsrage Value: ~ 2.0 8.9

Maximum Value: 9 . 2. - 18.2-7.7
-Minimum Value:. 0.0' - 0.0 : 6.7 Li-its Exceeded: 'O O -
l ic l'
-a
(. L k-T w:- - e .- i
,g- 'S ,
E 1
^
e s' .. ..
, ~ +
Y'
Pagn 6 of.7 QUARTERLY OPERATION MONITORING REPORT
' ~(ieorgia Power Company From: 10-01-80 ')lant Hatch To: 12-31-80 P.O.. Box 4545' Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001Ei - Combined Plant Waste (Unit I)
Frequency of-Analysis: 1/wk. I Type of Sample: In Situ Grab Grab Average Free Parameter: Temperature Chlorine pH
'F mg/l C12 pH Units Limits: - -
Min. 6.0 Max. 9.0 Date 10-01-80' 83
~
04-80 <0.1 7.0 110-08 83 <0.1 6.9 10-15-80 - 67 10-16 <0.1 8 . .t 10-22-80 83 <0.1 7.E
.10-29-80 83' <0.1 7.9 11-05-80 74 7] 11-06-80 <0.1 7.8
(y 11-12-80 73 <0.1 -7.7 11-19-80 .71 <0.1- 7.5 11-26-80 70 <0.1 1.0 12-03-80 59- '<0.1 7.0 12-10-80 7 7-- .<0.1 7.6 12-17-80 69 <0-1 7.8 12-23-80 68 <0.1 7.4
'12-31-80 61 0.1 7.9 s
Number of Samples: 14 14 14
} Average Value:
Maximum Value: 83 0.1 8.2 Minimum Value: '59 <0.1 6.9 Limits Exceeded: - - 0
/
- l t
.,-n,, , , - , , ,~-,n-- - - , . - - - .~v -es w~- *- +
Page 7 of;7 QUdRTERLY OPERATION MONITOR? SNG REPORT Georgia Power Company From: 10-01-80 3 Plant Hatch To: 12-31-80
-(V - P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: 0004120 Discharge Location: 001E 2 - Combined Plant Waste (Unit II)
Frequency of Analysis. 1/wk. 2
- Type of Samples: In Situ Grab Grab Parameter:
Temperature Average Free pH Chlorine i
*F mg/l C1, pil Units Limits: - -
Min. 6.0 Max. 9.0 Date
'10-01-80 80 10-04-80 <0.1 6.7 10-08-80 75 <0.1 6.7 10-15-80 79 8.0 10_-16-80 0.1 10-22-80 80 <0.1 7.7 10-29-80 84- <0.1 7.8 11-05-80 67 3 7.3 11-12-80 63 7.3 ; 11-19-80 60 7.6 ']'v 26-80 58 7.0
+ 12-03-80 56 '6.9
; 12-10-80 60 7.2 ! _ 12-17-80 54 7.5 12-23-80 52 7.5 12-31-80 45 7.8 -Number of~ Samples: 14 5 14 Maximum _Value: 80 0.1 8.0 Minimum Value: 45 <0.1 6./
Limits Exceeded: - -
0 Note: 3) Unit sas off line.
~
I certify that I am familiar with the _ information contained.in this report and that to the
.best of my knowledge and-belief such information is true, complete, and accurato.
T. E. Byerley Manager of Environmantal Affairs January 15, 1981 A JBS:pse-( .I
4
^rr^cansur O Georgia Power Cornpany Plant IIatch i
l The following six (6) pa6es contain chlorination data for the cooling tower y I blowdowns at Plant Hatch. I i O : 9 l ( l t l O
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ML20003E411: Difference between revisions

Latest revision as of 23:17, 17 February 2020

Contents

Text

1.5 REFERENCES

2.6 CONCLUSION

SUMMARY

SUMMARY

4.5 REFERENCES

1.5 REFERENCES

2.1 INTRODUCTION

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

4.5 REFERENCES

Dear M'r. Welsh:

Dear Mr. Welsh:

Dear Mr. Welsh:

Dear Mr. Welsh:

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ML20003E411: Difference between revisions

Latest revision as of 23:17, 17 February 2020

Text

1.5 REFERENCES

2.6 CONCLUSION

SUMMARY

SUMMARY

4.5 REFERENCES

1.5 REFERENCES

2.1 INTRODUCTION

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

4.5 REFERENCES

Dear M'r. Welsh:

Dear Mr. Welsh:

Dear Mr. Welsh:

Dear Mr. Welsh:

Navigation menu

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