Text

Annual Environmental Surveillance Rept - 1991
	ML20094M464
Person / Time
Site:	Hatch
Issue date:	12/31/1991
From:	Hairston W; GEORGIA POWER CO.
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	HL-2121, NUDOCS 9203310300
	Download: ML20094M464 (75)
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w. c. n etsn. iii HL-2121 003150 March 25, 1992 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 PLANT HATCH - UNITS 1, 2 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF ANNVAl ENVIRONMENTAL SVRVEllLANCE REPORT Gentlemen:

In accordance with the Plant Hatch Units 1 and 2 Environmental Technical . Specifications, (Appendix B to the Operating Licenses), Section 5.6.1, Georgia Power Company is submitting the enclosed Annual Environmental Surveillance Report for 1991, if you have any questions in this regard, please contact this office at any time.

Sincerely,

10. $ 2? W ~

W. G. Hairston, Ill SRM/cr

Enclosures:

Annual Environmental Surveillance Report cc: (See next page.)

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} U.S. Nuclear Regulatory Connission March 25, 1992 Page Two cc: Georaia Power Company Mr. H. L. Sumner, General Man;ger - Nuclear Plant Mr. C. M. Hobson, Manager - Environmental Affairs I NORMS U.S. Nuclear Reaulatory Commission. Washinaton. D.C.

Mr. K. Jabbour, t.icensing Project Manager - Hatch M.S. Nuclear Reaulatory Commission. Reaton 11

. 7.; f Mr. S. D. Ebneter, Regional Administrator

, y. 7{ Mr. L. D. Wert, Senior Resident Inspector - Hatch E

003150

ENCLOSURE PLANT HATCH - UNITS 1, 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 ANNUAL ENVIRONMENTAL SVRVEILLANCE REPORT JM1 Specification in accordance with the Edwin I. Hatch Nuclear Plant Technical Specifications, Appendix B, Section 5.6.1, this report is submitted summarizing the environmental activities for Units 1 and 2 of the Edwin 1. Hatch Nuclear Plant for the period January 1,1991 through December 31, 1991.

Reportina Reouirements A. Summaries, Analyses, and Interpretations of the Environmental Monitoring Activitics Results for the Report Period No nonradiological environmental mcnitoring activities were performed at Plant Hatch during the reporting period beyond those performed in accordance with NPDES Permit No. GA0004120. Monitoring activities performed in accordance with NPDES Permit No GA0004120 are referenced in Section H.

B. Comparison With Preoperational Studies, With Operational Controls, and With Previous Monitoring Reports Comparisons with preoperational studies, operational controls, and previous monitoring reports were not necessary because no nonradiological monitoring programs were conducted during the monitoring period beyond those performed in accordance with NPDES Permit No. GA0004120.

C. An Assestment of Observed Impacts of Plant Operation on the Environment No significant environmental impacts were associated with plant operation during the reporting period.

l D. Environmental Technical Specifications (ETS) Noncompliances and Corrective l Actions Taken

No instances of ETS noncompliance occurred during the reporting period.

! E. Changes to Federal and State Permits or Certificates No changes to any permits or certificates described in section 5.6.3 of the Environmental Technical Specification occurred in 1991.

l 003150 HL-2121 E-1

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ENCLOSURE (Continued)

ANNUAL DiVIRONMENTAL SURVEILLANCE REPORT 1911 F. Changes in Station Design or Operation That could Involve an Environmental Impact or Change in the Findings of the Final Environmental Statement In 1991 no changes were made in station design or operation which presented significant environmental impact or resulted in a change in the findings of the Final Environmental Statement.

G. Changes in the Environmental Technical Specifications One amendment was issued to the Environmental Technical Specifications on each unit in 1991. Amendment 116 on Unit 1 and Amendment 175 on Unit 2

. reflected organizational and title change .

H. Copies of All Reports Regarding Station Discharges Made in Accordance with NPDES Permit No. GA0004120 Enclosure 1 contains copies of reports submitted to the State of Georgia Department of Natural Resources - Environmental Protection Division related to events which resulted in exceedance of Plant Hatch NPDES Permit limitations on August 19, 1991, November 7, 1991, and December. 30, 1991, respectively. There were no observed impacts to the environment as a result of the events. The NRC was notified of each event in accordance with the provisions of Section 4.3 of the ETS (references 1, 2 and 3).

Copies of the 1991 quarterly NPDES Operational Monitoring Reports and the 1991 Flow Monitoring and Characterization. Study are included as Enclosures 2 and 3.

References:

1) letter HL-1789 dated August 26, 1991 J. T. Beckham to U.S. Nuclear Regulatory Commission,

Subject:

NPDES Permit Noncompliance

, 2) Letter HL-1925 dated November 15, 1991 J. T. Beckham to U.S. Nuclear Regulatory Commission.

Subject:

NPDES Permit Noncompliance i

i: 3) Letter HL-2002 dated January 3, 1992 i

J. T. Beckham to U.S. Nuclear Regulatory Commission,

Subject:

NPDES Permit Noncompliance l

l 003150

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ENCLOSURE 1 1991 NPDES REPORTS e

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Chris ht. Hopen Ma'a;e-L.come.; e :cer-e rce August 22, 1991 M 14T match NPDES Permit No. GA 0004120 Mr. David M. Word 13eorgia EPD 205 IJtler Street, SE Room 1058 Atlanta, Georgia 30334 Daar Mr.' Word:

Attached is a report of an event which has been discovered at our Plant Hatch. This report is being submitted in compliance wLth the provisions of Part II.A.2. of the above reference NPDES permit. The required ta'ephone (24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) notification was made to Mr. Lawrence W. Hedges on August 20, 1991.

Please infore me of your concurrence with our, proposed interim chlorination program as soon as possible. If you have any questions or consants, please advise.

Yours very truly, C.M.HobsNIO4 l GNG:kd

! Attachment l

xc Mr. Lawrence W. Hedges, Program Manager L Mr. Larry P. X1ost, Environmental Engineer l-bc: J. T. Bookhar.

H. L. Sumnar (All With Attachments) l W. C. Carr X. W. McCrackan DOW 073RL,03.co '

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F PLANT Z. I. MATCM '

NPDES PIRMIT Fo. GAooo4120 Rg g ittien of Ivant On August 19, 1991, the Plant Hat:h Unit 1 cooling tower blowdown valve (1N71-F200) was determined to have been designed with an -

inherent leak rate allowing approvinately 1000 m continuous flow through the valve when in the closed position. This configuration is attributed to the original sy' stem design which '

provided continuous blowdown from the circulating water system.

Plant Match' procedures for chlorinating the circulating water system require the blowdown valve to be closed during per13ds of chlorination. T*e discovery of this design configuration indicates that coatinuous blowdown has occurred during plant operation, including periods of circulating water system chlorination. - As a result, not all of the NPDES Permit requirements for monitoring during periods of chlorination havs been satisfied for Unit-1. Specifically, samples were not taken on the cooling tower blowdown line prior to mixing with other '

waste streams. This event is not applicable to Unit 2.

The discharge from the referenced valve mixes with other effluent water streams. The combined stream is routed to the Altamaha River via the plant discharge structure. Monitoring conducted routinely at the discharge structure, including periods of circulating water system chlorination, has not indicated the presence of chlorine residuals in the final discharge stream.

The procedure used at Plant Hatch for performing circulating water system chlorination _also has ensured that chlorine levels in the system'are non-detectable prior to establishing normal system operation upon completion of the chlorination. Based on this data, no adverse-environmental impact is judged to have occurred due to the periods of unmonitored chlorine discharge.

cause of Event The cause of this event is apparently an oversight in the original. design configuration for the blowdown system relative to NPDES Permit requirements. The original system desip was, in part, intended to provide continusus blowdown as a dilution mechanism for continuous releases from the Unit 1 liquid-radwaste system and- to naintain_ cycles of encontration in the circulating water system. Releases from the liquid radvaste actually are

_ performed on_a batch basis, but tas impact of the blowdown valve design-was not recognited relativa to HDPES requiraments.

Paried of Event The design of the blowdown valve-has allowed continuous discharge from the Unit 1 circulating water system since initial operation, excluding cutage periods when the system was not operational.

On Friday, August 16, 1991, at approximately 1500 hours0.0174 days 0.417 hours 0.00248 weeks 5.7075e-4 months EDT, ,

Plant Hatch personnel identified the potentially adversa valva design impact on the NPDES permit monitoring requiraments.

Chlorination of the Unit 1 circulating water systan was immediately suspended and an investigation into the status of the valva was initiated, No additional chlorination has occurred to date.

Actiens ?aken te Reduce. Elininate, and Prevent Recurranga As stated previously, chlorination of the Unit 1 circulating water systam was suspended upon identification of the suspected valva design. The valve design inpact on NPDES monitoring requiraments was confirmed on August 19, 1991, at approximately 1600 hours0.0185 days 0.444 hours 0.00265 weeks 6.088e-4 months EDT. Georgia Power Company Environmental Affairs was immediately notified upon confirmation of the valve design. On August 19, 1991 at 1300 hours0.015 days 0.361 hours 0.00215 weeks 4.9465e-4 months EDT, Environmental Affairs notified Mr. Lawrence W. Hedges, State of Georgia Envirennantal Protection Division (EPD), of the avant. Mr. Hedges is the Program Nanagar for the EPD Industrial Wastavater Program.

Plant Hatch Unit 1 is scheduled for a refueling outage to begin on september 18, 1991. The Unit ' cooling tower blevdown valve (1N71-F200) will be replaced during the outage with a valva designed to support full closura. This permanent corrective action will prevent recurrance of this event.

As indicated to Mr. Hedgas on August 20, 1991, it say be

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necessary to resume sons fern of chlorination in the Unit I circulating water system prior to the Septerbar 18, 1991, outage data to prevent savara biofculing. The condition of the Unit 1 circulating water system will be closely monitorri during the period prior to the outage and action will be tanan to ramune chlorination only if necesst.ry. In the event conditions in the Unit 1 circulating water system requirs resu=ption of chlorination prior to the scheduled outage, the following mechanism is proposed to ensura compliance with the provisions of l the plant Hatch NPDES Parmit:

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1. A ta=perary dachlorination a7stam will be installed on tha l cooling tower Slowdown line and operated to ensure ce=plete renoval of all chlorine residual contained in the approximataly 1000 ypm leakage flow passing through the blowdown valva. The dochlorination system will utilize an appropriata chlorine reducing agent (sodium bisulfite -

Buckman Laba BUIAB 9602) which will be fed immediately I

1 downstream of the blowdown valva.

2. Chlorine residuals (FAC and TRC) will be monitored in the circulating water fiume at a representative point to determine the concentration prasant in the blowdern line.

l 3. The feed rate of the dachlorination system will be set to l provide co=plete neutralization of chlorine residuals in the

1 blowdown line based on mass balance. An appropriate overfeed-of dochlorination chemical vill be provided as a contingency.

4. Due to system design, a representative monitoring point downstream of dochlorination prior to combination with other streams is not available. As such, total residual chlorine (TRC) will be monitored on thirty minute intervals at the discharge structure during the entire chlorination period.

5. If TRC is detected, additional sonitoring for FAC will be initiated on 15 minute intervals and the feedrate will be adjusted on the dochlorination equipment, se necessary, to ensure complete neutralizatien.

6. All data and supporting information will be recorded and submitted for EPD review in the quarterly NPDIS Operations Monitoring Report (oMR) for Plant Hatch.

su--ary Based on the previous infor=ation, no adverse environmental impact is believed to have occurred due to the. periods of unmonitored chlorine discharge. Ilant Hatch also is taking appropriate action to preclude future releases of r.hlorine frc=

the Unit 1 circulating water system.

The above inferr.ation is submitted in accordance with the provisions of Part II A. 2. of the Plant Hatch NPDES Permit (No.

GAC004120). It is understood t. hat EPD will provide a response regarding the acceptability of the proposed contingency plan for chlorination discussed above upon receipt and review of this report.

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Geo'g e %v Company D l' O 'IVU2 l

333 Pacmoat unve A9ama Geota ?;r8 Telephone 404 526 6526 Maihn; 4sess

& cst O'hce Bon d545 Atiama Ger;,a 30302 Georgia Power the sovnern e ecuc system Chris W. flobson Ma nage'.

trensing eno comptance October 15, 1991 PLANT HATCH NPDES Permit No. GA0004120 Proposed Consent Order Mr. Lawrence W. Hedges, Program Manager, Industrial Wastewater Program 205 Butler Street, SE - Room 1070 Atlanta, Georgia 30334

Dear Mr. Hedges:

Attached is a Fact Sheet which further explains circumstances and operating conditions associated with the Plant Hatch Unit 1 coolir;, tower blowdown valve leakage. This information is being submitted in response to the letter and proposed Consent Order from Mr. H. F. Reheis, dated September 23, 1991 and in accordance with our discussions with you and Mr. David M. Word on October 4, 1991. < '

Also attached is a proposed revision of the consent Order by EPD to resolve and settle alleged violations of Plant Hatch's NPDES permit. The revisions which are being proposed by Georgia Power Company include: 1) minor wording changes; 2) addition of a statement which acknowledges that no environmental damage occurred to the Altamaha River; 3) provisions for continued operation of Unit 1 in the event that the newly installed replacement valve should be faulty and: 4) proposes a reduced settlement in the arount of $9,500 which is based on actual operations of Unit 1 as detailed in the fact Sheet.

Georgia Power Company appreciates the opportunity to provide the Division with this additional information to be considered as mitigation in arriving at a fair and equitable settlement of this issue.

4 If you have. questions or comments, please advise.

Yours very truly, ;

b'Yll C. M. Hobson 2dM >

GNG:kd

- Attachments xc Mr. David M. Word, Chief, Water Protection Branch Mr. Larry P. Kloat, Environmental Engineer

.bc D. H. Evans All With Attachments J . .- T . Beckham H. L. Sumner W. C..Carr "

K..A. Macfarlane POW 07-02-12-00 POW-23-01-01-00 7 .

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n FACT 5HEET E. I. HATCH NUCLEAR PLAKT RESPONSE TO PROPOSED CONSENT ORDER

Background

On September 23, 1991, GPC received a draft Consent Order from the State of Georgik EPD in response to en NPDES Permit noncompliance reported on August 20, 1991. The Consent Order allegM violations of the NPDES Permit terms for failure to . monitor FAC and TRC dis;. sarges, exceedance of the 0.2/0.5 discharge limits for FAC and exceedance of the 120 minute time limit for discharge of TRC at the E.1. Hatch Nuclear Plant Unit I cooling tower blowdown. The order proposed a substantial monetary penalty (530,000) for the alleged violations.

Purpose This f act Sheet is provided for the record as documentation of the Georgia PowerCompany(GPC)/SouthernNuclear(SNC)positionwithregardtoresolution of the September 23, 1991 Proposed Consent Order for E. I. Hatch Nuclear Plant NPDES Pemit No. GA0004120. The followin; paragraphs provide information which supports reduction of the propcsed find to an amount which reflects the overall impact of the incident.

Supporting Information ht odi of Event It is understood that the period January 1, 1983 to August 19, 1991 was used by EPD to evaluate the period of noncompliance for the purpose of assigning the monetary penalty proposed in the Consent Order. January 1, 1983 approximates the effective date of the EPA Steam Electric Guidelines which were published in the federal Register on November 19, 1982. As such, the penalty was assessed based on a period of 3149 days.

Review of tb operating records for HNP Unit I for the referenced period indicates the unit was out of service due to outage activities for approximately 786 days. This represents a 25 percent reduction in the period of noncompliance used by EPD in assessing the proposed penoty which brings the period of non compliance to 2363 days.

In addition to the above, the period,of noncompliane4 should also be reduced based on the practice of alternate day chlorination. This represents an additional 50 percent reduction in the noncosiplia ce period to a total of 1181 days. The 50 percent reduction is a conservative estinate. Based on

! actual chlorination data for Unit I during a 304 day period in 1990/1991, chlorination took place on 111 days. This data indicates that chlorination only occurs on approx sately 37 percent of the available days.

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Hatch NPDES fact Sheet Page 2 The original $ 30,000 proposed penalty was assessed based on an assumption that the alleged noncompliance occurred each day during the defined 1983 to 1991 period. The above information indicates that ths initial assumption was incorrect and provides the basis for reducing the proposed penalty amount accordin Based on the above, the proposed penalty amount should have been $1),250gly. instead of the original $30,000.

Environmental Iroati The approxi'otely 1000 vpm leakage flow from the Unit I cooling tower blowdown valve was mixed with other Unit 1 effluent streams prior to reaching a mixing box where the Unit 1 and Unit 2 discharge streams combine and are routed to the Altamaha F.iver via the plant discharge structure Based on a review of available dilution flows from Unit I and Unit 2 off1 Lee.t streams and circulating water system chloriaation information, the approximately 1000 gpm leakage flow from the blowdown valve wou'd not result in discharge of detectable levels of residual chlorine to the river. Monitoring :enducted routinsiv at the discharp dructure, including peribds of circulating water system cblorination M . m ndicated the presence of chlorine residuals in the final discharge st. mi . Based on the above information, it can be concluded that no adverse environmenta) impact resulted from the periods of unmonitored chlorine discharge.

Conclusions The NPDES incident discussed above represents a situation in which a condition unknown to the permittee resulted in noncomplience with the adminip,rative and technical terms of the NPDES Permit. The incident was l self identified and reported by the parmittee; no adverse environmental i impact resulted from the incident. The configuration of the valve was not !

apparent and corrective action was taken immediately upon discovery of the valve design.

GPC/SNC believe that a consent order with a fine, which is comensurate with i the severity of the incident, .is acceptable. The fine proposed by EPD is i excessive and should be reduced based on the above information.

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ENVIRONMENTAL PROTECTIDH DIV28 ION DEPARTMENT OF NATtTRAL RESOURCE 8 STATE OF DEORGIA IN RE GEonGIA POWER CONPANY )

PLANT MATCH )

BAILEY, APPLING C0tTNTY ) ORDER MO. RPD-WQ-GEORGIA CONSENT ORDER WHEREAS, Georgia Power Company (hereinafter the " Company")

presently owns and operates Plant Hatch, a steam electric power generation plant in Baxley, Appling county, Georgia; and WHEREAJ, the Director of the Georgia Environmental Protection Division (hereinaf ter the "Directo:") issued to the company ilational Pollutant Discharge Elimination System Permit No. GA0004120 (hereinafter the "Pc mit") for Plant Hatch's wastewater discharge to the Altamaha River; and WHEREAS, Part III A.1 of the Permit requires cooling tower blowdown to be monitorad for free available ch1crine (FAC) and total rapidual chlorine (TRC) at fifteen minuto intervals on grab samples of the blowdown during discharges of FAC and TRC, and the blowdown in required to meet ave age and instantaneous maximum concuntration limits for FAC; and WHEREAS, FAC and-TRC will be present in cooling water during periods of chlorinating the circula' tion water to the cooling towers; and

- WHEREAS, the maximum time limit in the Permit for discharges of TRC is 120 minutes; and l

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INEREAS, Plant Hatch's normal operating procedure is to draw the water level down below the overflows in the circulation flume and close the blowdown valve during periods of chlorination, and the blowdown valve is riot reopened until the chlorination is I

completed and TRC is nondetectable in the water in the circulation fiume; and WHEREAS, chlorination of cooling towers is normL11y performed on an alternate day basis during summer and on a less i frequent basis in the winter and cycles last approximately four hours,* and WHEREAS, on August 19, 1991, the company determined that due to the design of the blowdown valve on the plant Hatch Unit 1 cooling tower, the blowdown valve has a potential leakage rate of up to 1000 gallons per minute of cooling water while in the closed position; and WHEREAS, the Director alleges that due to the recently discovered potential design leakage rate through the closed valve, the company has f ailed to monitoi' FAC and TRC dischargeo caused by chlorination of the Plant Hatch Unit 1 cooling tower, as required in the Permit; and WHEREAS, the Director alleges tha't violations of the permissible instantaneous maximum FAC limit of .5 mg/1, the average FAC limit of .2 mg/1, and 120 minute time limit for TRC discharges in blowdown are likely during each chlorination cycle of the Plant Hatch Unit 1 cooling towers since the issuance of the Permit in 1983, which incorporated guidelines for the Steam 2

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Electric Power Point Source Category, 40 CTR 423, promulgated November 19, 1982; and WHEREAS, the Company immediately undertook control measuren to eliminate potehtial TRC discharges in the blowdown from the Plant Hatch Unit 1 during chlorination cycles, upon discovery of the potential valve design leakage, as evidenced in their August 22, 1991 letter to EPD; and WHEREAS , no environmental damage to the Altamaha River has occurred as a result of the alleged violations; and WHEREAS , O.C.G.A. 512-5-29(a) of the Georgia Water Quality Control Act (hereinafter the " State Act") makes it. unlawful to use any of the waters of the State for the disposal of sewage, industrial vastes cr other vastes, except in such a manner as to conform to and comply with the provisions of the Act and all rules, regulations, orders and permits established under the provision of thu State Act; and WH EREAS 0. C . G . A . 512-5-52(a) of the State Act provides,

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inter alla, that any person violating any provision of the State Act or any permit condition or limitation established pursuant to the State Act or, negligently or intentionally, failing or refusing to comply with any final or emergency order of the Director as provided by the Statt Act, shall be liable to a civil penalty not to exceed _S50,000.00' per day for each day during which such violation continues; provided, however, that a separate and later incident creating a violation within a 12 month period shall be liable for a civil penalty not to exceed 3

$100,00C.00 per day for each day during which such violation continues; and WHEREAS, the Director and the Company desire to resolve the matter of the alleged HPDES Permit violations associated with the alleged discharge of TRC and FAC in the Plant Hatch Unit 1 cooling tower blowdown; and WHEREAS, the Director agrees that the terms of this order fully resolve and settle the matter of any alleged violations specified above through the date of execution of this order; NOW, THEREFORE, the Director hereby ORDERS and the Company hereby AGREES to the following:

1. The Company shall pay to the State of Georgia the sum of Nine Thousand Five Hundred Dollars ($9,500.00). This sum shall be forwarded to the office of the Director within thirty (30) calendar days from the date of issuance of this order, and shall be considered solely as the negotiated consideration of a settlement agreement.

2. Following the scheduled shutdown of Plant Hatch Unit 1 on September 18, 1991, the Unit 1 cooling tower cooldown valve will be replaced with a valve designed to support full closure. This valve shall be operational pricr to the restart of Unit 1.

3. As an interim neasure until shutdown of Unit 1, the company will conform to the following requiremento:

a. A temporary dechlorination system vill be installed on l the Unit I cooling teuer blowdown line and operated to l 4 l

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ensure complete removal of all chlorine residual contained in the approximately 1000 gallons per minute

" leakage" flow.

b. Chlorine residual, (both TAC and TRC), will be monitored in the circulating water fiume at a representative point selected by the Company. Feed rate of the dochlorination system will be set to provide neutralization of chlorine residuals in the blowdown line based on mass balance and an appropriate factor of safety.

c. Total residual chlorine (TRC) will be monitored on 30 minute intervals at the discharge structure (Dischargo 001) during the entiro chlorination period. If TRC is detected, both TAC and TRC will be munitored on 15 minute intervals and the feed rate will be adjusted, as necessary, to ensure neutralization.

d. All data and supporting information will be submitted to EPD on the quarterly NPDES operation Monitoring Report. The 120 minute time limit specified in the permit for TRC and FAC discharges will be applicable to the Unit 1 combined discharge (outta11 001).

4. The Company shall submit a statement spmeifying the type of valve utilized as a replacement part and varifying that replacement was made prior to restarting Unit 1.

5. During operation of Unit 1 subsequent to replacement of the i blevdown valve, should the Company determine that the 5

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4 replacement valve installed pursuant to Paragraph 2 above is ineffective or faulty, the Company will comply with the interim naasures set forth in Paragraph 3 above until the next scheduled shutdown, at which time the valve shall be replaced or repaired.

By agreement of the partins, this order shall be considered final and effective immediately, and shall not be appealable, and the Company doen hereby waive any hearing on the terms and conditions of same.

This order is made by agreement and with the consent of the Director and the Company and the same shall not constitute a finding or adjudication of violation of any Federal or State ,

laws, rules or regulations by the Company, nor does the company, by its consent to this order, admit any violation of law, rule or regulation or any liability to any third party or parties.

It is so ORDERED, CONSENTED, and AGREED to this day of , 1591.

!!AROLD F. REHElS, Director Environmental Protection Division Department of Natural Resources State of Georgia GEORGIA POWER COMPANY By:

Title:

Date:

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. Uc'el! ins eno comnuance November 12, 1991 >

PLANT MATCH NPDES Permit No. GA0004120 Unit 2 Cooling Tower Blowdown Valve :

Mr. Lawrence W. Hedges Program Manager, Industrial Waste Water Program ,

205 Butler Street,-SE - Room 1070 '

Atlanta, Georgin 30334

Dear Mr. Hedges:

Attached is a description of the Unit 2 cooling Tower Blowdown .

Valve malfunction and unplanned releans of chlorine to the Altamaha-River which was previously reported to you on November 7, 1991. This, report is submitted in accordance with ,

Part II A.2. of the above referenced NPDES-permit. ,

If you have questions or comments, please advise.

Yours very truly, ;

. . k g C. M. Hobson GNGtkd Attachment xc Mr.-Larry P. Kloat, Environmental Engineer I 9

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Plant E. I. Hatch NPDES Permit No. GA0004120 Descrintion of Event .

On Thursday November 7, 1991, at approximately 0800 EST, Plant Hatch water system.began a normal chlorinte.ron cycle for the Unit 2 circulating The cooling tower flume level had been previously lowered and sodium hypochlorite was injected into the system until approximately 0815 EST. After closing the valve on the sodium hypochlorite tank, plant Hatch Chemistry personnel obtained a sample from the cooling tower basin snd recorded a value of greater than 2 ppm Free Available Chlorine / Total Residual Chlorine (TAC /TRC) . Chemistry personnel then proceeded to obtain a sample from the flume. At this time it was observed that the fiume level '

had decreased significantly. Operations personnel investigated the situation and determined that the valve was open. The Unit 2 control room was immediately notified, Unit 2 cooling tower blowdswn and the valve was manually closed locally.

As a result of the valve being open, not all of the NPDES Permit requirements for monitoring of the Unit 2 cooling tower blowdown line during periods of chlorination were satisfied. Samples are not required to be routinely taken from the cooling tower blowdown .

linn; therefore, there were no samples taken from the line during the approximate 50 minuto period of unplanned chlorine dischargo.

The discharget irem the blowdown valve was diluted'with other effluent water streams prior to discharge to the Altamaha River.

No adverse environmental impact was obJerved to have occurred as a result of the period of unmonitored chlorine discharge.

Cause of Event The primary cause of the event is attributed to malfunction of the Unit 2 cooling tower blowdown valve torque switch. Failure to follow procedure contributed to the cause of the event. The Operations procedure requires the operator to observe the flume level when the blowdown valve is open and to observe the flume level for one hour following manipulation of the valve until the fiume level stabilizes. In this case the operator returned to the control room for shift change without waiting the prescribed time of one hour. This resulted in the decrease in flume level remaining unobserved during the discharge to the river.

Prior to beginning the chlorination process the cooling tower blowdown illuminated. valve had " red and " green" position indicating lights The normal indication for valve position is " red" for open and " green" for closed. A " red" and " green" indication reflects the valve being in an immediate position. The valve was confirmed to be in the closed position earlier in the shift with ,

both lights on the panel illuminated. Though not required this confirmation was normally performed as a good practice and consisted of a verification that dilution flow from the valve was I

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zero as read in the radwaste control room. On the morning of November 7, 1991, the valve was returned to the closed position following operation of the valve to lower the flume level. At this time both indicating lights again were illuminated. The cooling tower blowdown valve torque switch malfunctioned such'that the valve did not properly close. This failure to close was not properly identified due to the malfunction of limit switches which provide the open and closed valve indication in the control room.

The torque switch senses valve closure and terminates valve movement. No additional verification of the valve position as previously describod was conducted when both indicating lights were illuminated. The operator assumed the valve was closed and approved the initiation of circulating water system chlorination.

However, the torque switch had malfunctioned and the valve remained in an intermediate position.

As a result of the torque switch malfunction and the failure to properly follow the procedure the valve remained open during the chlorination cycle.

Period of Event

' The duration of the event was approximately 50 minutes.

Chlorination of the Unit 2 circulating water system began at approximately 0800 EST and was terminated at 0815; the blowdown valve was secured at approximately 0850 EST.

Actions Taken to_ Reduge. Eliminate, and Drevent Recurrence Upon discovery of the open condition, the blowdown valve Pas manually secured. chlorination of the circulating water system was suspended pending investigation into the cause of the problem. No additional mitigative action was necessary. No adverse environmental impact to the Altamaha River was observed as a result of the incident.

Georgia power Company Enviconmental Affairs was notified upon confirmation of details associated with tne incident.

Environmental Affairs notified Mr. Lawrence Kloat, State of Georgia Environmental Protection Division (EPD), of the incident at approximately 1415 EST. The Nuclear Regulatory Commission was subsequently 30tified.

The torque switch and the position, indication circuitry for the Unit 2 cooling tower blowdown valve *have been repaired.

Appropriate personnel vill be counseled with regard to the failure to follow the referenced procedure.

Summary Based on assessment of the abovo information, no advorpe environmental impact to the Altamaha River occurred he a result of this incident. Plant Hatch has taken appropriate actions to ensure l the incident does n0t recur.

The above information is submitted in accordance with the provisions of Part II A. 2.

GA0004120). of the Plant Hatch NPDES Permit (No.

Geo+gto 89*** Comesny 331 PeeamoN Avenv3

Aroma Gosg<a30308

1eiephone eM 626(126 ,

. Waang Aooress

Fest Othee aos a$a6 Anama Georg a 303:2 GeorgiaPower c M e u. M een , w menern ewve smee wenapet. <

ucensit. anocomphance January 3, 1992 PLANT MATCH NPDES Permit No. GA0004120

-Mr. Lawrence W. Hedges Program Manager Industrial Wastavater Proyram 205 Butler street, S.E., Room 1070 Atlanta, Georgia- 30334 Dear-Mr. Hedges -

In accordance with Part II.A.2. of the above-referenced NPDES

_ permit, attached is a report of--the circumstances of the-chlorine exceedance which was reported to Mr. Michael S.

creason by telephone on December--30, _1991.- ,

If you-have questions or comments, please advise.

Yours very truly,

,. y ! ,'

'u 'Al < S~-

c. M. Hobson GNGael Attachment xc Mr. Michael S. crencon, South Unit coordinator Mr. Larry P. Kloat, Environmental Engineer I

bc D.-H. Evans All-With. Attachments W. R. Woodall, Jr.

J. T. Beckham W. c. Carr H. L. Sumner B. K. Feinster y >

T. c. Moorer

. POW 07-03-05-00 POW 07-02-12-00

i Plant E. I. Hatch NPDES Pemit No GA 0004120 Descrietion of Evgqi -

A weekly sample from the Unit 1 finni discharge mixing chamber (05N 01) taken at 0905 hours0.0105 days 0.251 hours 0.0015 weeks 3.443525e-4 months on 12/30/91 indicated that chlorinated water was being discharged to the Altamaha River with a total residual chlorine (TRC) concentration of 1.4 parts per million (ppm) and a free available chlorine concentration (FAC) of 1.2 ppa.

No specific chlorine limits for CSN 01 are specified in the NPDES Permit.

However, the permit does require an increased samoling frequency at 05N 01 of once par 15 minutes during periods of chlorinated water discharge.

A measurable therefore, chlorinesampling this increased concentration at was frequency OSNnot01 wasperforrwe being not expected and,d prior to the analysis of the weekly sample. An increased sampling frequency was initiated upon discovery of the measurable chlorine concentration.

Cause of Event The direct cause of the event was an internal failure of the valve which isolates the chlorine addition system from the Unit I service water system intake. The chlorine addition system serves the service water intakes for both Unit 1 and Unit 2. Due to the valve failure the Unit 1 service water system was receiving an unintentional chlor lne treatment during a planned chlorine addition to the Unit t tervice water system. The Unit 1 service water system was aligned at thi t n e to discharge directly to OSH 01.

Period of hent The discharge of chlorinated water began at 0730 when the Unit I service water rystem was first aligned to discharge directly to OSN 01. At 1000, following identification of the failed valve, the chlorine addition to the service water systems was teininated. TRC and FAC concentrations at OSN 01 both decreased to <0.1 ppm by 1040. The time of chlorine discharge through OSN 01 was approximately 190 minutes.

Actions Taken to Prevent Recurrengg

1. The failed plant service water chlorine addition valve has been replaced.

2. The corresponding valve for Unit 2 will be inspected for sintlar conditions as was found on Unit I within the next 30 days.

1

.s

3. As an additional sensure to preclude an unplanned discharve of ehlorine chlorine from the site due to an undetected valve failurely will normally be edded to a plant service water system on when the service water systems of both units are aligned to discharge to the circulating water system of the respective unit. - At times tihen chlorination of the plant service water system is required and the above alignment is not possible (e.g., with either unit's plant

- service water system beinp diverted directly to the final discharge mixing chamber) then samp ing will be performed at the final disciarse mixing chamber of both units to verify that the chlorine eddition is

- occurring only on the desired unit's plant service water system,

4. Chlorination of the plant service water systems for both units has beer. Suspended until the necessary operating procedures have been moditted as described above.

i 0

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ENCI.05URE 2 1991 NPDES OPERATION MONITORING REPORTS I

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Anama. Goorp<a 30307 4 Georgia Power thescu nt<ntwtrts, a gig.

Chns W. Heb6en M a h49 t t.

LJCensrh; 860 Comp 4 ESC 9 l April 19, 1991 )

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Mr. D. M. Word Chief, Water Protection 5 ranch 203 Butler Street, S.E. - Room 1070 Atlanta, Georgia 30334

Dear N,

r. Words As required by the fellowing NPDES Pa':.utts, we are submitting the operation Monitoring Reports for ecch of the power plants for the quarter ending March 31, 1991.

PLANT ARXWRIGHT - HPDES PERMIT Ho. GA 0026069 PLANT BRANOSI

- HPDES PERMIT No. GA 0026051 PIRIT MA5.250ND - HPDES PERMIT No. GA 0001457 PINTT MATCH a NPDEF PERMIT Ho. GA 0004120 PIRIT MCDON/ATX - HPDES PERMIT NO. GA 0001431 PINiT MCMANUS HPDES PERMIT Ho. GA 0003794 PIRiT HITCHELL ~ NPDES PERMIT No. /,A 0001465 PINIT SCHERER - HPDES PERMIT NO. GA 0035564 WALLACE DAM

- NPDES PERMIT No. GA 0035581 PLANT WANSLEY

- HPDES PERMIT No. GA 0026778 PIRIT YATES - HPDES PEPRIT No. GA 0001473 BARTLETT'S PEUY - NPDES PEPMIT NO. GA 00014PO Phie 't.5 e information contained in this report is a true, and vwr and complete presentation of naasurements au).ytt;al results observed, such information is subject to the 1 en it variabilities to make the measurements not and results. the SW. variabilities and inaccuracies are within reasonable control of the permittee. The permittee reserves the right to clain all legal and equitable defenses available to it in connection with any exceedances reflected in this report, For these reasons, among othors, this report should not be of permit interpreted as an admission by the permittee 1 violations.

\

t All values reported arr subject to the analytical variability of the approved test procedures as follows:

Parameter Eanna 1 0.9 ag/l 80D3 i 1.3 mg/l TSS t 1.s ag/l

- o&G pH i 0.05

0.03 ag/l

. cr d 0.06 ag/l En 7, t 0.05 mg/l 1 0.01 ag/l Mn i 0.003 ag/l Total P Temperature 1 0. 9't.

If you have questions or cozzents, please advise.

Yours very truly, lt C. M. Hobson

GNGlaj Enclosure bct Messrs. c. K. McCoy P. P. Boren w/a J. T. Deckham R. E. Honnan w/a

c. L. Donaldson K. M. Stafanini w/a R. L. Boyer

c. W. Modges J. M. Mostellar w/a M. D. Kee w/a J. L. Conn W. B. Shipman w/a M. L. Suanar w/a R. L. LeGn.nd w/a J. R. Pope. v/a B. R. Quick w/a W. E. Pitts w/a R. A. Pollock w/a R. Z. Leggett w/a J. M. Jones w/a M. L. Beacher w/a K. W. McCrackan w/a W. c. Savall w/a A. P. Sasvas w/o E. . Joyner w/a la 07-03-01

-l

,. [ POVe 1 of 13-HPDIS: OPERATION MONITORING REPORT Georgia Power Company From: 01-01-91 Tot 03-31-91 Plant E.2. Hatch P.O. Box 4545 Atlanta, Georgia 30502 Permit Number GA0004120 Discharge Location: 01G - Lov Volume Waste (Neutralization Tank)

Type of samples Grab Frequency of' Analysis 2/Ho coder _ (530) (550) ,

Paranater Suspended Solids Oil & Grease ug/l ng/l Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Dates -t 01-17-91 9.6 <5 01-24-91 3.5 <5 02-08 1.3 <5 02-19-91' 9.0 <5 03-04-91 0.0 <5 03-28-91 5.4 <5 Number of Samples 6 6 Average. Values 4.8 <5 Maximun Valust 9.6 <5 Minimun Values 0.0 <5 Idnits Exceeded: 0 0 W

8

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

I Page 3 og 13 j

i NPDES: OPERATI0li hollITORING REPORT l

FrcM 01-01-91 Georgia Power Company *a's ! 03-31-91 Plant E.2. Hatch P.O. Box 4545 Parmit Number GA0004120 I

Atlanta, Georgia 30302 Discharge-location: 01'M - Icv Voluna Waste (Pressure Filters Backvash)-

Type of sample Grab Frequency of Analysis: 1/Qtr Codes (530) (550) ,

Parameters suspended Solids oil & Grease ug/l ag/l Avg. 30 Avg. 15 Limits: Max. 20

. Max. 100 Date:

2.0 <5.0 02-18-91 (A) <5.0 02-18-91 (B) 2.0 1.0 <5.0 02-18-91 (C) <5.0 02-18-91 (D) 3.0 i

Number of samples: 4 4 Average Values 2.0 <5.0 .

3.0 <5.0 Maximum Values- <5.0 Hinimun Values 1.0 Limits Exceeded: 0 0 e

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Pago 3 c2 13 j

NPDES OPERATION NONITORING REPORT Front 01-01-91 Georgia Power Cospany Tot 03-31-91 Plant E.1. Hatch P.O. Box 4545 Permit Numbert GA0004120 Atlanta, Georgia 30302 Discharge Location 01A - Cooling Tower Blowdown Unit one iccatient Blovdovn Blowdown Blowdown Tower Basin Tower Basin Mitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab Typet 1/Qtr Frequency: 1/Wh/ Unit 1/Wk/ Unit 1/WX/ Unit 1/Qtr Chromium Parameter FAC-avg. Tac-max. Total Time zinc of TRC rol sax. max.

& TRC avg.

(ng/1) (ng/1) (nin.-ng/1) (ag/1) .

(29/1) 0.2 0.5 120 1.0 0.2 Limits:

50064 61400-50060 1092 1034 Codest 30064 Date:

01-01-91 <.1 <.1 0 <.1 01-09-91 <.1 <.1 0 <.1 --

01-16-91 <.1 <.1 0 <.1 01-23-91 <.1 <.1 0 <.1 # --

01-30-91 <.1 <.1 0 <.1 --

02-04-91 <.1 <.1 0 <.1 --

02-11-91 <.1 <.1 0 <.1 02-21-91 <.1 <.1 0 <.1 --

0 <.1 <.1 <.1 02-27-91 <.1 <.1 --

03-06-91 <.1 <.1 0 <.1 --

03-13-91 <.1 <.1 0 <.1 --

03-21-91 <.1 <.1 0 <.1 --

03-27-81 <.1 <.1 0 <.1 --

Number of 1 1 Samples t 13 13 13 13

<.1 <.1 0 <.1 <.1 <.1 Avg Valuat

<.1 0 <.1 <.1 <.1 Max Values <.1

<.1 Min Valust <.1 <.1 0 <.1 <.1 Limits 3 0 0 0 Exceededt 0 0 f

~ - - __ .. __ _ _ _

Pago 4 of 13 I ,

WPDES: OPERATION MONITORING REPORT l

Georgia Power Company From: 01-01 Plant I.I. Hatch Tot 03-31-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number GA0004120 Discharge 1ccation: 02A - Cooling Tower Blowdown Unit Two Iccation: Blowdown Blowdown Blowdown Tower Basin Tower Basin Types Hitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab Traquency: 1/WX/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter TAC-avg. Tac-max. Total Time Zinc . Chromium of TRC rol max. max.

& TRC avge (29/1) (29/1) (sin.~ngcl} (ag/1) . (ag/1) j Limits: 0.2 0.5 120 1.0 0.2 l Codes: 50064 50064 81400-50060 1092 1034 Date: _i 01-02-91 <.1 <.1 0 <.1 --

01-09-91 <.1 <.1 0 <.1 --

01-16-91 <.1 <.1 0 <.1 --

01-23-91 <.1 <.1 0 <.1 --

01-30-91 <.1 <.1 0 <.1 --

02-04-91 <.1 <.1 0 <.1 -- !

02-12-91 <.1 <.1 0 <.1 --

02-21-91 -- -- - -- --

02-27-91 <.1 <.1 0 <.1 <.1 <.1 03-06-91 <.1 <.1 0 <.1 --

03-13-91 <.1 <.1 0 <.1 --

03-21-91 <.1 <,1. O <.1 -- --

03-27-91 --

Number of samples: 11 11 11 11 1 3.

Avg Values <.1- <.1- 0 <.1 <.1 <0.1 Max Values <.1 <.1 0 <.1 <.1 <0.1 Min-Values <.1 <.1 0 <.1 <.1 <0.1 Limits Exceeded: 0 0 0 0 0 0

unit in outage. .

9

Page 5 of 13

/

NPDIS: OPERATIO}t M0)(170 RING REPORT Georgia Power Company From: 01-01-91 To 03-31-91 Plant I.2. Hatch P.O. Box 4545 Atlanta, Georgia 30302 Permit Number CA0004120 Discharge Location: 01B - Unit one cooling Water overflow 1ccation: Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

Type Mitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab Frequency: 1/Wk/ Unit 1/WK/ Unit 1/RX/ Unit 1/Qtr 1/Qtr Parameter FAC-avg. Fac-max. Total Time Eine Chromium of TRC rol max. max.

& TRO avg.

(ng/1) (ng/1) (nin.=ng/1) (ag/1) ,

(ag/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes 50064 50064 $1400-50060 1092 1034 Date:

03 *4-91 -- -- ~~ <.1 <.1 Humber of samples: 0 0 0 1 1 Avg Values -- -- -~ <.1 <.1 Max Values -- -- -- <.1 <.1 Min Value s -- -- -- <.1 <.1 Idmits Exceeded: 0 0 0 0 0 There was no sampling of this discharge location for FAC or 7.RC because there were no overflows of chlorinated water.

O e

Pago C of 13 j

NPDES: OPIRATICH MONITORING REPORT Georgia Power Company ,

From: 01-01-91 Plant I.I. Hatch To: 03-31-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge location: 02B - Unit Two cooling Tower overflov To Stern Drains location: Blowdown Blowdown Blovdown Tower Disch. Tower Disch.

Type: Mitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab Frequency: 1/WX/ Unit 1/WX/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter: FAC-avg. Fac-max. Total Time Zine Chromits of TRC rol nax. max.

& TRC avg. ,

(29/1) (29/1) (min.-ng/1) (ng/1) (2g/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-50060 1092 1034 Date:

03-19-91 ~~ -- -- <0.1 <0.1 Number of Samples: 0 0 0 1 1 Avg Value: 0 0 0 <0.1 <0.1 Max Value: 0 0 0 <0.1 <0.1 Min Value: 0 0 0 <0.1 <0.1 Limits Exceeded: 0 0 0 0 0 There was no sampling of this discharge location for FAC or TRC because there was no overflow of chlorinated water.

I-- , _ ,

Page 7 of 13 s

HPDt3: OPERATIOli HollITORIllG RIPORT Georgia Power Company Front 01-01-91 Plant E.I. Hatch Tot 03-31-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge Location: 02C - Unit Two Cooling Water overflow Locatient Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

Typet Mitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab Fre quency! 1/WX/ Unit 1/WX/ Unit 1/WX/ Unit 1/Ctr 1/Qtr Parametert FAC-avg. Fac-max. Total Time Zine Chromium of TRC rol max. Bax.

& TRC avg.

(29/1) (29/1) (nin.-ng/1) (2g/1) (29/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-50060 1092 1034 Datet 03-19-91 -- -- -- <0.1 <0.1

/

Humber of Samplest 0 0 0 1 1 Avg valuet 0 0 C <0.1 <0.1 Max Value 0 0 0 <0.1 <0.1 Min Value: 0 0 0 <0 1 <0.1 Limits Exceeded O O O O O There was no sampling of this discharge location for FAC or TRC because there was no overflow of chlorinated vatar.

l l

. - , r. + y- -

" P0ge 8 og 13 NPDESt OPERATION MONITORING REPORT !

Georgia Power Company Prom: 01-01-91 Plant E.I. Hatch Tot 03-31-91 P.D. Box 4545 AtInnta, Georgia 30302 Permit Numbert GA0004120 i

Discharge Location: 012 - Low Volume Waste (Liquid Radwaste System Unit one) ;

Type of Samplet Grab Prequency of Analysist 2/Mo

- codet (530) (550)

Parameter: Suspended Solids Oil & Greake i ag/l ag/l l Limitst -Avg. 30 Avg. 15 Max. 100 Max. 20 i

Date 01-07-91 16.0 5.1 01-21-91 17.1 10.6 '

02-05-91 16.0 13.2

02-21-91 15.0 11.9 03-04-91 13.4 10.2 03-18-91 28.0 2.4 Number of _ Samplest 6 6 Average Valust 17.6 8.9 i

Maximum Value 28.0 13.2 . .

Minimum Value 13.4 2.4 Limits Exceededt .O O t

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Page 9 og 23 NPDEst OPIRATION MONITORING REPORT Georgia Power Conpany Front 01-01-91 Tot 03-31-91 Plant E.I. Match P.O. Box 4545 Permit Numbers CA0004120 Atlanta, Georgia 30302 02E - Lov Volume Waste (Liquid Radwaste Systen j Discharge Locationt y

Vnit Two) i Type.cf sasplet Grab !

Frequency of Analysis 2/Mo .

codet- (530) (550)

Paranater Suspended Solidt, oil & Grease

- ng/l ag/l r

Avg. 30- Avg. 15 Limits:

Max. 300 Max. 20 Date:

2.5 <5 01-09-91 <5 01-21-91 0.87

<5 ;

02-04-91 1.0 02-20-91' 2.0 <5 03-04-91 0.6 <5 18-91 1.4 <5 Humber of samplest. 6 6 Average Valtae f 1.38 <5 Maximum value 2.5 <5 l

Minimun Value: 0.6 <5

.0 0 Limits Exceededt h

e t"TNY+-T-77~-r*7#M--T7*Rw=r-~f**-m';-*V'v*+" T

--+ni-*- -e ,.saw---e g g-.e,,gi%,- , ,,,,,,,4,,ec_,_,,, ,,,sm.-y g, ae- wtay.%4 4me-._yp,%yr- et-r*w PW P T ** FdcF-W*'W 9 WT

P0g3 10 of 13

~

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l NPDES: OPERATION MONITORING REPORT .

i Georgia Power company Prom: 01-01-91 To: 03-31 91 PJant E.1. Hatch P.O. Box 4545 Parmit Number: GA0004120 Atlanta, Georgia 30302 Discharge location: 01 - Combined Plant Waste streams Unit one Frequency of Analysis: 1/WX Grab Type of Sanples In situ Grab Grab Parameter Tarperature T.R.C. T.A.C. pH Limits: Deg. T N/A N/A .

Min. 6.0 Max. 9.0 Codes (11) (50060) (50064) (400)

Date:

01-07-91 69 <.1 <.1 7.4 01-14-91 73 <.1 <.1 7.3 01-21-91 61 <.1 <.1 7.3 01-28-91 75 <.1 <.1 7.6 02-04-91 67 <.1 <.1 6.6 .

<.1 6.2 02-11-91 74 <.1 6.9 02-18-91 68 <.1 <.1 02-25-91 68 <.1 <.1 7.9 03-04-91 71 <.1 <.1 7.4 03-11-91 71 <.1 <.1 7.4 03-18-91 78 <.1 <.1 7.6 03-25-91 64 <.1 <.1 7.7 Number of Samples: 12 12 12 12 Average value 69.9 <.1 <.1 7.28 Maximum Values 78 <.1. <.1 7.9 Minimum Velu 61 <.1 <.1 6.2 Limits Exceedad: 0 0 0 0 b

9

Page 18 of 33 s

HPDES OPERATION MONITORING RIPORT ;

Georgia Power Company Front 01-01-91 ;

Plant E.7.. Hatch Tot 03-31-91 [

P.O. Box 4545 .

Atlanta, Georgia 3030' Permit Humbert GA0004120 Discharge location 02 - Combined Plant Waste streams Unit Two Frequency of Analysist 1/Wk Type of samplest in situ Grab Grab Grab Parameter Temperature T.R.C. F.A.C. pH :

Limitst Dag. T N/A N/A ,

Min. 6.0 Max. 9.0 l 2 odes (11) (50060) (50064) (400)

Date:

01-07-91~ 82 <.1 <.1 8.2 01-14-91 62 <.1 C.1 7.0 01-21-91 61 <.1 <.1 7.2 01-28-91 59 <.1 <.1 7.0 02-04-91 77 <.1 <.1 7.4 02-11-91 66 <.1 <.1 7.4 02-18-91 68 <.1 '4.1 7.1 02-25-91 68 <.1 <.1 7.6 03-04-91 73 <.1 <.2 7.6 03-11-91 71 <.1 <.1 7.4 03-18-91 82 <.1 <.1 7.8 03-25-91 68 <.1 <.1 7.2 Number of samples. 12 12 12 12 Average Value 69.8 <.1 <.1 7.41 Maximum value 82 <.1 <.1 s.2 Mininum Value 59 <.1 <.1 7.0 Limits Exceeded: 0 0 0 0 s

4'

p, Pago 12 of 13 NPDES: OPERATION HONITORING RIPORT Georgia Pev.. Company From: 01-01-91 Plant I.I. ;tch Tot 03-31-91 P.P . P V 4 L ,' 5 Atlan- Rbrgin 30302 Permit Number GA0004120 7 ne*ify und6r the penalty of lav that this document and all a t t." vere preparea under the direction or w parvision in a system designed to assure that qualified personnel

-c' is a and evalute the information submitted. Based on my inquir. Se person or persons who manage the system, or those per-sons dirit.t resoonsible for ga'.hering the information, the infor-u.stion summitted is, to the best of my knowledge and belief, true, accur:te, nnd c:mpInta, ' an aware that there are significant penaltier for submitting false information, including the possibi2ity of fine and imprisonment for k.nowing violations.

s

-:%a-was svensr General Manager f

Page 13 og 13 NPDES: OPIPATION P.ONITORI!;G REPORT Georgis Power Company Trom: 01-01-91 Plant E.I. Hatch To: 03-31-91 P.O. Box 4545 Atlanta, Georgia 30301 Permit Number GA00C4120

.o All values reported are subject to the analytical variability of the approved test procedures as fol3ows:

Parameter EAD2e BOD +/- 0.9 ng/l TSS +/- 1.3 mg/l O&G +/- 1.8 ng/l pH +/- 0.05 Cr +/- 0.03 ng/l 2n +/- 0.06 ug/l Fe +/- 0.05 mg/l im +/- 0.01 mg/l Total P +/- 0.003 mg/l Temperature +/- 0.9 F l

l 1

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l' P L A N T ti."^mt NPDES LOG IU.USE AND ACTION TAKEN TO ANTICIPATED OR APPROX.

I DATE / TIME REDUCE / ELIMINATE / PREVENT, SAMPLES SAMPt.Ei EVENT ACTUAL DATE/ FLOW TAKEN FIEBUL TS DEGAN RATE HECUFREHCE*

TIME CEASES N/A Rone-1015 Intermittant Approx. 600 galloas of untreated sewage was 23 Jan 91 0915 23 Jan 91 discharged onto the ground from the lift

.tation located f r. front of the Unit One __

Turbine Building. The cause of the discharge

.s due to a piece of "A" cloth which had

~ ~

l covered the inlet pipe to the booster pumps.

I This was found after maintenance pumped the .

' receiving tank down to the inlet pipe level.

fler problem was corrected the lift station as placed back into service at 1600 EST 23 Jan 91. No further action required.

\

l I

N :h: BKF PLANT MANAGER G M w s.y A # u A fe/s / / \

II.L. Surrstr - General Marmer, Nuclear Plant

Gergis Ptwet Comesny

- ?!) Petomom Artwe -

o e 4II,26 6 us,,,,, . .e,s Post ottice boi 4545 Anama Geo's a 30302 L

GeorgiaPower n um eas,e m,,,

nmuon..m.an.v.

-July ?.7, 1991 Mr. D. M. Word Chief, Water Protection Branch 205 Butler Street, S.E. ~ Room 1070 Atla'ita, Georgia 30334 Dear Mr. Word As required by the following NPDES Permits, we are submitting the operation Monitoring Reports for each of the power plants for the quarter ending June 30, 1991.

PIANT ARXWRIGHT

- HPDES PERMIT No. GA 0026069 PIANT BOWEN

- NPDES PERMIT No. GA 0001449 PIANT BRANCH

- NPDES PERMIT No. GA 0026051 PIANT MA)O!OND

- NPDES PERMIT No. GA 0001457 PLANT MATCH

- HPDES PERMIT No. GA 0004120 PLANT MCDON/ATK

- NPDES PERMIT No. GA 0001431 PIANT MCMANUS HPDES PERMIT No. GA 0003794 PIANT MITCHELL

- NPDES PERMIT No. f.A 0001465 PLANT SCHERER

- NPDES PERMIT No.' GA 0035564 WALIACE DAM

- NPDES PERMIT No. GA 0035581 PIANT WANSLEY

- NPDES PERMIT No. GA 0026778 PIANT YATES

- HPDES PERMIT NO. GA 0001473 BARTLL"IT'S TERRY

- HPDES PERMIT No. GA 0001490 TALLULAH - FALLS HYDRO - NPDES PERMIT No. GA 0004162 While the information contained in this report is a true, beasurements and accurate and complete presentation of analytical results observed, such information 1s subject to the inherent variabilities to make the naasurements and results.

and inaccuracies are not within the Such variabilities reasonable control of the permittee. The permittee reserves the right to claim all legal- and equitable defenses ave.11able to it in connection with any excendances reflected - in this report.

For these reasons, among others, this report -- should not be of permit interpreted as . an ' admission by ' the permittee violations.

L y

All values reported are subject to the analytical variability of the approved test procedures as follows:

Parareter Eange BOD3 1 0.9 29/1 TSS 2 1.3 29/1 O&G d 1.8 Eg/l pH t 0.05 Cr i 0.03 zg/l Zn 1 0.06 ag/l _

Fe t 0.05 mg/l Mn 2 0.01 mg/l Total P t 0.003 mg/l Temperature 2 0.9'F.

If you have questions or cor.=ents, please navise.

Yours very ly,

/W T-C. N. Hobson GNG:KD -

Enclosura bc: Messrs. C. K. McCoy P. P. Boran v/a J. T. Beckham R. E. Norman v/a C. L. Donaldson K. M. Stefanini- wfa R. L. Boyer J. M. Moste11ar v/a J. L. Conn M. D. Ese v/a H. L. Sur.ner v/a W. B. Shipman v/a J. R. Pope w/a R. L. LeGrand v/a W. E. Pitts v/a B. R. Quick v/a R. E. Leggett w/a R. A. Pollock w/a H. L. Beacher v/a J. H. Jones v/a ti. C. Savell y/a W. C. Carr v/a E. Joyner v/a A. P. Reeves v/a File 07-03-01 ..... . . . . _

... Page.1'of 13 NPDES: OPERATION MONITORING REPORT i

Georgia' Power Company From: 04-01-91 .

Plant E.I. Hatch Tot-06-30-91

'P.O.' Box 4345.

Atlanta, Georgia 30302 Permit Numbert GA0004120 Discharge Location: 01G - Low Volume Waste (Neutralization Tank)

. Type of-Sample: Grab Frequency of Analysis: 2/Mo code: (530) (550)

Parameter: Suspended Solids 011 & Grease 29/1 mg/l

. Limits:. Avg. 30 Avg. 15 Max. 100 Max. 20 Date:

04-04-91 92.5 <5-04-16-91 1.8 <5

05-07 23.3 <5 05-22-91 4.3 <5 06-08 27.7 <5 06-21-91 16.5 <5 Number of' Samples 6_ 6 Average Value:- 27.6- . <5 Maximum Value: 92.5 <5

-Minimum Value:. 1.8 <5 Limits Exceeded: 0 0 i=

l c .:v .

l E

l l;

' Pogo 2 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power company From: 04-01-91 Plant E.~.. Hatch To 06-30 1 P.O. Scx 4545 Atisrsta, Georgia 30302 Permit Number: GA0004120 Discharge Location: O1H - Low Volume Waste (Pressure Filters Backwanh)

Type of sample: Grab Frequency of Analysis: 1/Qtr Code: (530) (550)

Parameter: Suspended Solids Oil & Grease ug/l mg/l Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date:

05-07-91 (A? 2.0 <5.0 05-07-91 (B) 2.0 <5.0 05-07-91 (C) 2.0 9.0 05-07-91 (D) 7 3 <5.0 Number of Samples: 4 4 Average Value: 2.0 <5.0 Maximum Values 2.0 9 Minimum Value: 2.0 <5.0 Limits Exceeded: 0 0

Page 3 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 04-01-91 Plant E.1. Hatch To: 06-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge Location: 01A - Cooling Tower Blowdown Unit One Location: Blowdown Blowdown Blowdown Tower Basin Tower Basir Type Mitpl Grab Mitpl Grab Mitpl Grab Grab Grab Frequency: 1/Wk/ Unit 1/WX/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter: FAC-avg. Fac-max. Total Time Zinc Chromium of TRC rel max. 27. % .

& TRC avg.

(mg/1) (2g/1) (min.-mg/1) (mg/1) (mg/1)

-Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-50060 JS92 1034 Date:-

04-03-92 <.1 <.1 0 <.1 --

04-04-91 -- -- - --

<.1 <.1 04-10-91 <.1 <.1 0 <.1 -- --

04-17-91 <.1 <.1 0 <.1 --

04-24-91 <.1 <.1 0 <.1 --

05-01-91 <.1 <.1 0 <.1 - ,< --

05-09-91 <.1 <.1 0 .1 -- --

05-15-91 <.1 <.1 0 <.1 -- --

05-22-91 <.1 <.1 0 <.1 -- --

05-29-91 <.1 <.1 0 <.1 -- --

06-05-91 <.1 <.1 0 <.1 -- --

06-12-91 <.1 <.1 0 <.1 -- --

06-19-91 <.1 <.1 0 <.1 -- --

06-26-91 <.1 <.1 0 <.1 -- --

Number of Samples: 13 13 13 13 1 1 Avg value: <.1 <1 0 <.1 <.1 <.1 Max Value <.1 <.1 0 .1 <.1 <.1 Min Valum: <.1 <.1 0 <.1 <.1 <.1 Limits Exceeded: 0 0 0 0 0 0 3 -' 4 - ,. ,m

4 Pago 4 of 13 NPDES:-OPERATION MONITORI!iG REPORT Georgia Power' Company From: 04-01-91 Plant E.I.: Hatch 708-06-30-91 P.O. Box 4545 Atlanta,-Georgfa -30302 Permit Number: GA0004120

+

Discharge Location: 02A - Cooling Tower Blowdown Unit Two Location: Blowdown Blowdown Blowdown Tower Basin Tower Basin Type Mitpl Grab Mltpl Grab Mitpl Grab Grab Grab L Frequency:-1/Wk/ Unit 1/K.:/ Unit 1/Wk/ Unit _ 1/Qtr 1/Qtr-

" Parameter: FAC-avg. Fac-max. Total Time Zinc Chromium i of TRC rol max. max. '

& TRC avg.

4

_(29/1) .(29/1) (min.-mg/1) (ag/1) (2g/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes - 50064 50064 81400-50060 1092 1034

--Date:

04-03 * * . * *

o4-10 91 04 17-91 04-24 * * * * * *

- 01-91

05-08-91 .

05-10-91 05-22-91 * * * * *

05-29-91 05-91 <.1 <.1 0 <.1 -- --

12-91 <.1 <.1 0 <.1 <.1 <.1 06-19-91 <.1 <.1 0 ,c .1 --

06-26 .1 .1 0 0.2 -- --

N2mber of Samplest 13 13 13 13 1 1 Avg. Values.<.1 <.1 0 <.1 <.1 <0.1

-__ Max Value: .1 .1 0 .2 <.1 <0.1 Min-values <.1 <.1 0 <.1 <.1 < 0.1-Limits

Exceeded: 0 0 0 0 0 0

-unit in 4tage.

Page 5 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power Co=pany From: 04-02-91 To: 06-30-91 P2.J4t E.I. Ilatch P.O. Box 4545 Atlanta, Georgia 30302 Permit Namber: GA0004120 Discharge Location: 01B - Unit One Cooling Water Overflow Location: Blowdown Blowdown Blovdown Tower Disch. Tower Disch. -

Mitpl Grab Mitpl Grab Mitpl Grab Grab Grab Type:

Frequency: 1/Wk/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter: FAC-avg. Fac-max. Total Time Zinc Chromium of TRC rel max. max.

& TRC avg.

(mg/1) (mg/1) (min.-mg/1) (mg/1) (mg/1) 0.2 0.5 120 1.0 0.2 Limits:

Codes: 50064 50064 81400-50060 1092 1034 Date:

-- -- <.1 <.1 04-04-91 --

Number of Samples: 0 0 0 1 1

-- -- <.1 <.1 Avg value: --

-- -- <.1 <.2 Max values -- <.1 Min Value: -- -- -- <.1 Limits 0

. Exceeded: 4 0 0 0 There was no sampling of this discharge ?octtien for FAC or TRC because there were no overflows of chlorinated water.

. Page 6 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 04-01-91 Plant E.I. Hatch To: 06-30-91 P.O. Box 4545 Atlan a, Georgia 30302 Permit Number GA0004120 Discharge Location: 02B - Unit Two Cooling Tower overflow To Storm Drains Location: Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

Type: Mitpl Grab Mitpl Grab Mitpl Grab Grab Grab Frequency: 1/WX/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtt Parameter: FAC-avg. Fac-tax. Total Time Zinc Chromium

. of TRC rol max. max.

& TRC avg.

(mg/1) (mg/1) (min.-mg/1) (mg/1) (ag/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-50060 1092 1034 Date:

06-01-91 -- -- -- <0.1 <0.1 Number of camples: 0 0 0 1 1 Avg Value 0 0 0 <0.1 <0.1 Max Value: 0 0 0 <0.1 <0.1 Min Value: 0 0 0 <0.1 <0.1 Limits Exceeded: 0 0 0 0 0 There was no sampling of this diset.arge location for FAC or TRC because there was no overflow of chlorinated water.

.- '- Page 7 of 13 ..

NPDES: OPERATION MONITORING REPORT Georgia-Power Company From: 04-01-91 Plant E.I. Hatch To: 06-30-91

- P.O. Box 4545 J

- Atlanta, Georgia 30302 Permit Number: Gh0004120 Discharge Location: 02C - Unit Two cooling Water Overflow Incation: Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

- Type:. Mitp1 Grab Mitpl Grab Mitpl Grab Grab Grab Frequency: 1/Wk/ Unit 1/Wk/ Unit 1/WK/ Unit 1/Qtr 1/Qtr Paramkter: FAC-avg. Fac-max. Total Time Zinc Chromium of TRC rel max. max.

& TRC avg.- _

(mg/1)' (mg/1) (min.-mg/1) (mg/1) (mg/1)

-Limits: 0.2 0.5- 120 1.0 0.2 Codes: 50064 50064 81400-50000 1092 1034 cate:

06-01-91 -- -- -- <0.1 <0.1

=

9 s

0 Number of-Sampies: 0'- 0 0 1 1-

--Avg Value: 0 -- 0. O <0.1 <0.1 Max Valur" 0 0 0 <0.1 <0.1 Min value: 0 0 0 <0.1 <0.1 Limits Exceeded: 0 0 0 0 0' There was no sampling of this discharge iocation for FAC or TRC because tAere was no overfinw of chlorinated water.

9 a

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

i -- ,

Page 8 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power Company - From: 04-01-91

- Plant-E.I. Hatch To: 06-30-91 ,

P.O. Box--4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge Location: 01E - Low Volume Waste (uiquid Radwaste System Unit One)

Type of - Sample: Grab Frequency of Analysis: 2/Mo codes (530) (550) s

- Parameter: Suspended Solids Oil & Grease ag/1_ mg/l Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 D' ate:

04-02-91' 8.0 8.3 .

04-15-91 2.0 0.7 05-06-91 15.0 8.8 05-20-91 28.0 15.3 06-03-91 2.4 0.0 06-17-91' 20.0 J.5 Number.of Samples: 6 6 ,

Average Value: 12.5 5.6 Maximum.Value: 28.0 15.3

Minimum Value: 2.0 0 Limits Exceeded: 0 0 s

l .

I:

m , w , r. e ,_ n , e, -

,m,. -w- --- , , e

Paga 9 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 04-01-91 Plant E.I. Hatch To: 06-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge Location: 025; - Low Volume Waste (Liquid Radwaste System Unit Two)

Type of Sample Grab Frequency of Analysis: 2/Mo Code: (530) (550)

Parameter: Suspended Solids Oil & Grease Eg/l ag/l Limits: Avg. 30 Avg. Ib Max. 100 Max. 20 Date:

04-01-91 0.0 2.7 04-15-91 3.0 2.4 05-06-91 1.3 1.5 05-20-91 2.0 0.6 06-08-91 1.7 0.4 06-21-91 2.7 2.1 Number of Samples: 6 6 Average Value: 1.8 1.6 Maximum Value: 3.0 2.7 Minimum Value: 0 0.4 Limits Exceeded: 0 0 4

y

. Page 10 of 13 NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 04-01-91 Plant E.I. Hatch To: 06-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120

- Discharge Location: 01 - Combined Plant Waste Streams Unit one Frequency of Analysis: 1/Wk Grab Type of samples: In situ Grab Grab Temperature T.R.C. F.A.C. pH Parameter: ,

Limits: Dog. F N/A N/A Min. 6.0 Max. 9.0 Code: (11) (50060) (50064) (400)

Date:

73 <.1 <.1 7.3 04-01-91 3 04-08-91 75 1.1 <.1 7.0 82 <.1 <.1 7.6 04-15-91 7.3 04-22-91 75 <.1 <.1 84 <.1 <.1 7.8 04-29-91 84 <.1 <.1 6.8 05-06-91 6.9 05-13-91 84 <1 <.1 82 <.1 <.1 6.8 05-20-91 7.0 05-27-91 84 <.1 <.1 80 <.1 <.1 7.6 06-03-91 06-10-91 82 <.1 <.1 7.6 88 <1 <.1 7.6 06-17-91 91 <.1 <.1 7.7 06-24-91 Number of Samples: 13 13 13 13 Average Value: 82 <.1 <.1 7.3 91 <.1 <.1 7.8

. Maximum value: 6.8 Minimum value: 73 <.1 <.1 0 0 0 LiLits Exceeded: 0 i.

e

Pago 11 of 11 NPDES: OPERATION MONITORING REPORT Georgia Power Ccmpany From: 04-01-91 Plant E.I. Hatch To: 06-30-91 P.O. Box 4545 Atlanta,.Gaorgia 30302 Permit Number: CA0004120 Discharge Location: 02 - Combined Diant Waste Streams Unit Two Frequency or Analysis: 1/Wk Type of samples In situ Grab Grab Grab Parameter: Temperature T.R.C. F.A.C. pH Limits: Deg. F N/A N/A Min. 6.0 Max. 9.0 Code: (11) (50060) (50064) (400)

Date:

04-01-91 66 <.1 <.1 7.4 04-08-C1 68 <.1 <.1 6.8 04-15-91 69 <.1 <.1 7.0 04-22-91 69 <.1 <.1 7.2 04-29-91 71 <.1 <.1 7.0 05-06-91 71 <.1 #4.1 7.4 05-13-91 74 <.1 <.1 7.3 05-20-91 77 <.1 <.1 7.4 05-27-91 78 <.1 <.1 7.4 06-03-91 77 <.1 <.1 7.5 06-10-91 85 <.1 <.1 7.8 06-17-91 89 <.1 <.1 7.5 06-24-91 89 <1 <.1 8.2 Number of Samples: 13 13 13 13 Average Value 76 <.1 <1 7.4 Maximum Value: 8? <.1 <.1 8.2 Minimum Value: 59 <.1 <.1 6.8 Limits Exceeded: 0 0 0 0

Pago 12 of 13 HPDESt OPERATION MONITORING REPORT Georgia Power Company Prom: 04-01-91 Plant E.I. Hatch Tot 06-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number GA0004120 y

I certify under the penalty of law that this document and all atti.chments ware prepared under the direction or rupervision in

, accordance vita a system designed to assure tc ct qualified personnel properly gather and evalute the information submitted. Based on ry inquiry of the person or persons who manage the system, or those per-sons directly responsible for gathering the information, the infor-nation submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant panalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

i~-- % ..

H. L. sumner, Jr.

General Manager [ (/

Nuclear Plant H

Mr81 > > n C. M. Hobson Manager, Licensing & Compliance Environmental Affairs

Pago 13 of 13 NPDES: OPERATION MONITORING REPORT Goorgia Power Company From: 04-01-91 To: 06-30-91 Plant E.I. Hatch P.O. Box 4545 Perr.it Number: CA0004120 Atlanta, Georgia 30302 All values reported are subject to the analytical variability of the approved test procedures as f:llows:

Parareter Rance BOD +/- 0.9 ng/l TSS +/- 1.3 ng/l O&G +/- 1.8 mg/l pH +/- 0.05 Cr +/- 0.03 ug/l ,

Zn +/- 0.06 ng/l Te +/- 0.05 mg/l Mn +/- 0.01 mg/l Total P +/- 0.003 mg/l Temperature +/- 0.9 F

+

_______._.__________-_-__--_.--__-___a

,(j f Gecen a Nwe Company 333 P,ecmom Avenue O f"d Ausma Geo<g a 30%!

leiephone (04 L25 (Eh Vaihng A30'est

' hs; O*i.ce Bos a545 Acanta Geo's a 3030 M Georgia Power W sww me,: srsre-Chris M. Hobson Mana;er October 18, 1991 ocensin; ano compnance Mr. D. M. Word Chief, Water Protection Branch 205 Butler Street, S.E. - Room 1070 Atlanta, Georgia 30334

Dear Mr. Word:

As required by the following NPDES Permits, we are submitting the Operation Monitoring Reports for each of the power plants for the quLrter ending September 30, 1991.

PLANT ARXWRIGHT NPDES PERMIT NO. GA 0026069 PLANT BOWEN

- NPDES PERMIT NO. GA 0001A49 PLANT BRANCH NPDIS PERMIT NO. GA 0026051 PLANT MAMMOND NPDES PERMIT NO. GA 0001457 PLANT HATCH NPDES PERMIT No. GA 0004120 PLANT MCDON/ATK NPDES PERMIT NO. GA 0001431 PLANT MCMANUS

- NPDES PERMIT NO. GA 0003794 PLANT MITCHELL

- NPDES PERMIT NO. GA 0001465 PLANT SCHERER NPDES PERMIT NO. GA 0035564 PLANT VOGTLE NPDES PERMIT NO. GA 0026786 WALLACE DAM

- NPDES PERMIT NO. GA 0035581 PLANT WANSLEY

- NPDES PERMIT NO. GA 0026778 PIRIT YATES -

HPDES PERMIT NO. GA 0001473 BARTLETT'S FERRY

- HPDES PERMIT NO. GA 0001490 7ALLUIRi FALLS MYDRO - NPDES PERMIT NO. GA 0004162 While the information contained in this report is a true, and accurate and complete presentation c? measurements analytical results observed, such informa* 'on is subject to the inherent variabilities to make the meascements and results. the Such variabilities and inaccuracies are not within reasonable control of the permittee. The permittee reserves the right to claim all legal and equitable defenses available to it in connection with any exceedances reflected in this report.

For these reasons, among others, this report should not be permit as an admission by the permittee of interpreted violations.

)

S

All values: reported are subject to the analytical variability-of the approved test procedures as_follows:

4 Parameter R&nstt bod.3 t 0.9 ag/l TSS- t 1.3-29/1 :

O&G- i 1.8 29/1 e pH t 0.05 cr- t 0.03 mg/l ,

En. t 0.06 ng/l t- Fe 1 0.05 mg/l Ma f 0.01 mg/1-Total P i 0.003 mg/l Temperatute

0.9'F.

. If you have questions or comments, please advise.-

Yours very truly,_

/ s Ff w

-c. M.-Hobson GNG:KD

_ Enclosure ,

I~ bc:- Messrs. C.-K. McCoy P. P. Boren- w/a- -

J. T. Beckham. A. R. James- w/a C. L. Donaldson K. M.-Stefanini' W/a -_

R..L. Boyer J. M. Mostellar t'/a J. L. Conn M.-D.-Kee- w/a

-H. L. Sumner w/a W. B. Shipman- w/a J. R. Pope w/a R. L. IAGrand . w/a W. E. Pitts w/a B. R. Quick w/a.

R. E. Imggett w/a . R. A. Pollock w/a.

H. L. Beacher w/a J. H. Jones w/a

W. C. Sewell w/a w/a-l W C. Carr '

i E. E. Joyner w/a A. P. Reeves w/a-L le 07-03-01 1

i-e

n. - --,.o - ~ , , - - - - , . , , --- - -

NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 07-03-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 .

Atlanta, Georgia 3030*t Permit Number: GA0004120 Discharge Location: 01G - Iow Volume Waste (Neutralization Tank)

Type of sample: Grab Frequency of Analysis: 2/Mo Code: (530) (550)

Parameter: Suspended Solids oil & Grease _

mg/l ag/l Limits: Avg. 3n Avg. 15 Max. 100 Max. 20 Date:

07-08-91 12.0 <5 08-04-91 10.6 <5 08-09-91 7.0 <5 08-23-91 11.0 <5 3 09-02-91 12.5 <5 09-19-91 2.2 <5 Number of Samples: 6 6 Average Value: 9.21 <5 Maximum Value: 12.5 ~

<5 Minimum Value: 2.2 -

<5 Limits Exceeded: 0 0

Dage 8 os14 NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 07-01-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 ,

Atlanta, Gec,rgia 30302 Pa'anit Humbert GA0004120 .

Discharge Location: O1H - 14v Volume Waste (Pressure Filters Backvash)

Type of Sample: Grab Frequency of Analysis 1/Qtr Code: (530) (550)

Parameter: Suspended Solids Oil & Grease 29/1 ug/l Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date:

06-03-91 (A) 1.0 <5.0 08-28-91 (A) <1.0 <5.0 08-14-91 (B) 2.0 <5.0 08-26-91 (C) 2.0 <5.0 08-14-91 (D) <1.0 <5.0 Number of Samples: 5 5 _

Average Value: 1.0 <5.0 Maximum Value: 2.0 <5.0 Minimum Value: <1.0 <5.0 LIMITS EXCEEDED 0 0

EPD COMPLIANCE AUDIT CROSSCHECK SAMPLE

HPDES: OPERATZON MONITORZNG REPORT Georgia Power Company - From: 07-01-91 TPlant E.I. Hatch To: 09-30-91 P.0;' Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge. Location: 01A - Cooling Tower Blowdown Unit One .

Locationi Blowdown Blowdown Blowdown Tower Basin Tower Basin LTypes Mitpl Grab Mitpl-Grab Mitpl Grab Grab Grab Frequency _1/Wk/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter FAC-avg. Fac-max. Total Time Zinc Chromium of TRC rol max. max.

& TRC avg.

(ag/1) (ag/1) (min.-mg/1) (mg/1) (ag/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes:- 50064 50064 81400-50060 1092 1034 Date:

07-03-91 <.1 <.1 0 <.1 -- --

07-03-91 -- -- - -- <.1 <.1 07-10-91 <.1 <.1 0 <.1 --- --

~07-17-91 <.1 <.1 0 <.1 -- --

07-25-91 <.1 <.1 0 <.1 -- --

07-31-91 <.1 <.1 0 <.1 -- --

08-07-91 <.1 <.1 0 .1 -- --

08-14-91 <.1 <.1 0 <.1 -- --

08-21-91. < .1 - <.1 0 <.1 -- --

08-27 <.1- <.1 0 <.1 -- --

09-03-91 <.1 <.1 0 <.1 -- --

09-12-91 <.1 <.1 0 <.1 -- --

19-91 <.1 <.1 0 <.1 -- --

09-20-91 <.1 <.1 - --

<.1 <.1 09-27-91 <.1 <.1- 0 <.1 -- --

Number of

? Samples: 14 14 14 14 2 2 Avg-value: <.1 <.1 0 <.1 <.1 <.1 Max Value: <.1 <.1 0 .1 <.1 <.1 Min-Value: <.1 - <.1 0 <.1 <.1 <.1 Limits Exceeded: 0 0 0 0 0 0

PRIOR TO DRAINING UNIT ONE COOLING TOWER BASIN DURING UNIT ONE QUTAGE <

NOTE: SEE ATTACHMENT 1 FOR DATA CONCERNING UNIT ONE CIRC WATER CHLOR-INATION/ DECHLORINATION-DURING THE TIME-PERIOD OF 8-28-91 TO 9-15-91.

- , .w-, -- + - , - a - ~, a w - - . . , ,, - . - - ,

1 NPDES: OPERATION MONITORING REPORT Georgia Power Company From: 07-01-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge Location: 02A - Cooling Tower Blowdown Unit Two ,

Location: Blowdown Blowdown Blowdovn Tower Basin Tower Basin Type: Mitpl Grab Mitpl Grab Mitpl Grab Grab Grab Frequency: 1/WX/ Unit 1/WX/ Unit 1/WK/ Unit 1/Qtr 1/Qtr Parameter: FAC-avg. Fac-max. Total Time Zinc chromium of TRC rel max. max.

& TRC avg.

(mg/1) (mg/1) (min.-mg/1) (mg/1) (ag/1)

Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-50060 1092 1034 Date:

07-03-91 <0.1 <0.1 0 <0.1 .10 <0.1 07-10-91 <0.1 <0.1 0 <0.1 -- --

07-17-91 <0.1 <0.1 0 <0.1 -- --

07-25-91 <0.1 <0.1 0 <0.1 -- --

07-31-91 <0.1 <0.1 0 <0.1 -- --

08-07-91 <0.1 <0.1 0 <0.1 -- --

08-13-91 <0.1 <0.1 0 <0.1 --

j 08-21-91 <0.1 <0.1 0 <0.1 -- --

08-27-91 <0.1 <0.1 0 <0.1 -- --

09-04-91 <0.1 <0.1 0 <0.1 -- --

09-12-91 <0.1 <0.1 0 <0.1 -- --

09-18-91 <0.1 <0.1 0 <0.1 -- --

09-25-91 <0.1 <0.1 0 <0.1 -- --

Number of

-Samples: 13 13 13 1 1 Avg Value: <.1 <.1 0 <.1 <.1 <0.1 Max value: <.1 <.1 0 <.1 .1 <0.1 Min Value: <.1 <.1 0 <.1 <.1 <0.1 Limits Exceeded: 0 0 0 0 0 0

-- = - _ - .-_ _

l Page 5 of 14 l i

NPDES: OPERATION HONITORING REPORT l

Georgia Power Company From: 07-01-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 Discharge Location: 01B - Unit One Cooling Water overflow Location: Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

Type: Mltpl Grab Mitpl Grab Mitpl Grab Grab Grab Frequency: 1/Wk/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter: FAC-avg. Fac-max. Total Time Zine Chromium of TRC rel max. max.

& TRC avg.

(mg/1) (mg/1) (min.-mg/1) (mg/1) (mg/1)

Limits: 0.2 0.5 120 1.0 0.2 i Codes: 50064 50054 81400-50050 1092 1034 Date:

09-19-91 -- -- -- <.1 <.1 Number of Samples: 0 0 0 1 1 779 Value: -- -- -- <.1 <.1 Max Value: -- -- -- <.1 <.1 Min Value: -- -- --

<.1 <.1 Limits Exceeded: O O O O O There van no sampling of this discharge location for FAC or TRC because there were no overflows of chlorinated water.

s -

0 sfo 4 IMAGE EVAL.UATION (('f '

,0q%

9 y (qf? TEST TARGET (MT-3)

/

\/g//

0 s

'Q '

\\N # g g p % k59 (g<e(~f" l I.0 :..M ", J1-l- c cs',,:: E2 =

be poma j,1 ;

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'!I.25 11.4

ame T i.6

= i

4 150mm 4

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+ ///p

.n s ,

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vs o o;y. , a^

m B IMAGE EVAL.UATION

/lkl00A,, +

\9 f/

'O e,@f TEST TARGET (MT-3) ff,,Tf

s. a v- g, f$' bl 4fp Ik ts~

dr %~

I.0 F "!422*

tu ! 32 a ,u Gs

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,,,1{m j,j .

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6" s%

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fff

gyNgyN, e

gy e

n ,,.a

,s ye n'4s %(g g IMAGE EVALUATION f/

\/g Of 'k @[' Q$8' TEST TARGET (MT-3) 6R f' ,f?4g s

\ e p hf/

9 gr s%#,,

l.0 c ' ? " "A

} e-] Ell I.1 MR

$d1 1.25

((t I.4J =m =i.6_= =j 4 150mm 6"

h'

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46 . .:

g%li L :f& Qy o, , ,:s v

WQ

L NPDES: OPERATION M011ITORING REPORT Georgia Power Company '

From: 07-01-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Parmit Number: GA0004120 Discharge Location: 02B - Unit Two cooling Tower overflow To Storm

Drains Location: Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

Type: Mltp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab Frsquency: 1/WX/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter: FAC-avg. Fac-max. Total Time Zinc Chromium of TRC rol max. max.

& TRC avg. __

(ag/1) (29/1) (min.-mg/1) (mg/1) (ag/1) ;

Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-53060 1092 1034 Date:

06-03-91 -- ' -- --

<0.1 <0.1 08-14-91 -- -- -- <0.1 <0.1

~ Number of Samples: 0 0 0 2 2 Avg Value: 0 0 0 <0.1 <0.1 Max Value: 0 0 0 <0.1 <0.1 Min value: 0 0 0 <0.1 <0.1 Limits Exceeded: 0 0 0 0 0 There was no sampling of this discharge location for FAC or TRC because there was no t:.verflow of chlorinated wa*ar.

EPD COMPLIANCE' AUDIT CROSSCHECK SAMPLE.

1 1

NPDES: OPERATION HONITORING RIPonT Georgia PoNer Company From: 07-01-91 Plant E.I.-Hatch To 09-30-91 P.O. Box 4545

-Atlanta, Georgia 30302. Permit Number: GA0004120 Discharge Location:. 02C - Unit Two Cooling Water Overflow

-Location: Blowdown Blowdown. Blowdown Tower Disch. Tover Disch.

Typer Mitp1 Grab Mitpl Grab Mitpl Grab Grab Grab

. Frequency: 1/WX/ Unit- 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parameter -FAC-avg. Tac-max. Total Time Zine Chronium of TRC rel max. max.

& TRC avg.

(2g/1) (29/1) (min.-mg/1) (mg/1) (mg/1)

-Limits: 0.2 0.5 120 1.0 0.2 Codes: 50064 50064 81400-50060 3092 1034 Date:

Number of Samples: 0 0 0 0 0 Avg Value: 0 0 0 0 0

. Max-value:- 0 0 0 0 0 Min-Value: 0 0 0 0 0 Limits =

Exceeded: 0 0 ,0 ,

0 0 There was no sampling of this discharge location for FAC or TRC because there was no overflow of chlorinated water.

Pogo 8 of 14 NPDES: OPERATION MONITORING REPORT Georgia'Fower Company From: 07-01-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 .

Atlanta, Georgia 30302 Permit Number GA0004320' Discharge Location: 01E - Low Vulues Waste (Liquid Radwnste System Unit One)

Type of Sample: Grab -

Frequency of Analysis: 2/Mo Code: (530) (550)

Pararater: Suspended Solids Oil & Grease mg/l mg/l 1imits: Avg. 30 Avg. 15 Max. 100 Max. 20 Date:

07-02-91 8.0 4.p 07-15-91 16.5 0.6 08-06-91 0.2 0 08-19-91 2.8 0 09 02-91 4.3 0.7 09-16-91 3.5 1.8 Number of' Samples: 6 6 Average Value: 5.88 1.18 Maximum Value: 16.5 4.0

-Minimum Value: 0.2 0 Limits Exceeded: 0 0

\

. ~

NPDES: OPERATION MONITORING RIPCLRT Cecry:i2 J' Power company From: 07-01-91 Plant R . Hatch To: 09-30+91 P . O . Ic:c : 4545 Atlartr.., Georgia 30302 Perrit Ntmmber: GA0004120 e l l

Disc.tA.,ve location: 02E - Lov Volume Maste (Liquid FamiwastG System Unit Two)

Type cf ZSample: Grab Traque=py of Analysis 2/Mo code: (530) (55C; Pars.nc.amr : Suspended Solids oil &. Grease ug/l m:g/l Lir.its: Avg. 30 A.vg . 1.15 Max. 100 Max. 3 0 Date:

07-01-91.1 3.0 0 07-15-51.1 10.5 12.1 0 8 - 0 5-s ' *. 0.2 2.7 08-19-9*1 1.B C.4 09-08-9C 0.3 2.6 09-16-s*. 0.6 0.6 Numbe. cmf Samples: 6 6 Ave. rape -"Value: 2.7 ,3 .1 Mavi n ~Value: 10.5 12.1 Minisca -~Value: 0.3 0 Limits EExceeded: 0 0 e

d i

i

~ - . _ . . . ..

Pago 10 of 14 NPDES: OPERATICA HONITORING RIPORT Georgia Power Company Fro =: 07-01-91 Plant E.I. Hatch To: 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120',

Discharge Location: 01 - Combined Plant Waste Streams Unit one Frequency of Analysis: 1/Wk Type of Samples: In Situ Grab Grab Grab Parameter: Temperature T.R.C. F.A.C. pH Limits: Deg. F N/A N/A Min. 6.0 Max. 9.0 Code: (11) (50060) (50064) (400)

Date:

07-01-91 87 .15 .15 6.9 07-08-91 88 <.1 <.1 7.7 07-15-91 93 .10 .14 7.0 07-22-91 87 <.1 .10 6.6 07-29-91 87 <.1 <.1 6.8 08-05-91 86 <.1 <.1 6.3 08-12-91 78 <.1 <.1 7.3 08-19-91 84 <.1 <.1 7.8 08-26-91 84 <.1 <.1 7.5 09-02-91 82 <.1 <.1 6.9 09-09-91 84 <.1 <.1 7.5 09-16-91 86 <.1 <.1 8.3 09-23-91 75 <.1 <.1 7.5 09-30-91 75 <.1 <.1 7.4 Number of Samples: 14 14 14 14 Average Value: 84 <.1 <.1 7.25 Maximum Value: 93 .15 .15 B.3 Minimum Value: 75 <.1 <.1 6.3 Limits Exceeded: 0 0 0 0

Pago 11 of 14 NPDES: OPERATION MONITORING RIPORT Georgia Power Company Fren: 07-01-91 Plant E.I. H2tch To: 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120" Discharge Iccation: 02 - Combined Plant Waste Streams Unit Two Frequency of Ana"ysis: 1/Wk Type of Samples: In Situ Grab Grab Grab Parameter: Temperature T.Rac. Y.A.C. pH Limits: Deg. F N/A N/A Min. 6.0 Max. 9.0 Code: (11) (50060) (50064) (400)

Date:

07-01-91 89 .1 .2 8.0 07-08-91 86 <.1 <.1 7.9 07-15-91 90 <.1 <.1 7.1 07-22-91 91 <1 .1 7.4 07-29-91 91 <.1 <.1 7.7 '

08-05-91 M6 <.1 <.1 6.4 08-12-91 86 <.1 <.1 S0 08-19-91 86 <.1 <.1 8.2 08-26-91 82 <.1 <.1 7.2 09-02-91 B4 <.1 <.1 7.6 09-09-91 80 <.1 <.1 7.5 09-16-91 87 <.1 <.1 7.6 09-23-91 80 <.1 <1 7.9 09-30-91 78 <.1 <.1 7.5 Number of Samples: 14 14 14 14 Average Value: 85 <.1 <.1 7.6 Maximum value: 91 .1 .2 S.2 Minimum Value: 78 <.1 <.1 6.4 Limits Exceeded: 0 0 0 0 l

l l

l

NPDES: OPERATION HONITORING REPORT Georgia Power Company From: 07-01-91 Plant I.I. Hatch To 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120 I-certify under the penalty of law that this document and all attachments were prepared under the direction or supervision in accordance with a systen designed to assure that qualified personnel properly gather and evalute the information submitted. Based on my

quiry of the person or persons who manage the system, or those per-sons directly responsible for gathering the information, the infor-nation submitted is, to the best of my knowledge and bel - m true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and i=prisonment for knowing violations. ,

c %e c_ H. L. SUMNER , JR.

GENERAL MANAGER NUCLEAR PLANT

NPDES: OPERATION MONITORING REPORT Georgia Power Compt.ny From: 07-01-91 Plant E.I. Hatch To 09-30-91 1.O. Box 4545 Atlanta, Georgia 30302 Permit Number: GA0004120',

All values reported are subject to the analytical variability of the

approved test procedures as follows

Paraneter R_ance BOD +/- 0.9 ng/l TSS +/- 1.3 ng/l O&G +/- 1.8 mg/l 2 pH +/- 0.05 Cr +/- 0.03 ng/l On +/- 0.06 mg/l Te +/- 0.05 mg/l Mn +/- 0.01 mg/l Total P +/- 0.003 mg/l Temperature +/- 0.9 F M

9

Attachmant 1 Unit One Circulating Water Sampling, Unit One Discharge Structure During Pariod of Chlorination / Dechlorination

. I U1 Flume Discharge Structure Maximum Total .

M e t'. NaOC1 ppm Dackground ppm Discharge ppm DJscharge Date FAC TRC FAC TRC FAC TRC TRC/ Min g 00-28-91 1.6 1.6 (.1 .2 <.l_ <.1 0 __

09-40-91 2.5 2.5 <1 .1 <.1 (.1 O l

1 09-01-91 2.0 2.5 <.1 <.1 <.3 <1 O l l

09-03-01 1.6 2.5 <.1 <.1 <.1 <.1 0 __

09-05-91 1.6 2.5 <.1 .2 <1 <.1 O 09-00-91 2.2 jbj) <.1 <,1 <.1 <.1 0 09-11-91 3.0 3.0 <.1 <.1 <.1 <.1 0 During chlorination / dechlorination samples were obtainec in 15 minute intervals at the Discharge Structure to ensJre that no chlorinatec water was being discharged to the Altamaha River.

Attama. Georg's 30308 bennone 4N 5:6 6526

US$ng Ao? ell Post ottice Bos 4545 Attama. Georg.a 30300 M

' Georgia Power IV 3W'" NN l'W C M 6bl Hobson Mana ge'.

ucens.ng ccompance January 21, 1992 Mr. D. M. Word Chief, Water Protection Branch 205 Butler Street, S.E. - Room 1070 Atlanta, Georgia 30334

Dear Mr. Word:

As required by the following NPDES Permits, we are submitting the operation Monitoring Reports for each of the power plants for the quarter nnding December 31, 1991.

m PLANT ARKWRIGHT - NPDES PERMIT No. GA 0026069 PLANT BOWEN HPDES PIMIT No. GA 0001449 PLANT BRANCH NPDES PERMIT No. GA 0026051 P1 ANT HAMMOND NPDES PERMIT No. GA 0001457 PIANT HATCH - NPDES PERMIT No. GA 0004120 PLANT MCDON/ATK - NPDES PERMIT No. GA 0001431 '

PLANT MCMANUS

- NPDES PERMIT NO. GA 0003794 PLANT MITCHELL -

NPDES PERMIT No. GA 0001465 PIANT SCHERER - NPDES PERMIT No. GA 0035564 PLANT VOGTLE - NPDES PERMIT No. GA 0026786 WALLACE DAM - NPDES PERMIT No. GA 0035581 PLANT WANSLEY - NPDES PERMIT No. GA 0026778 PIANT YATES -

NPDES PERMIT No. GA 0001473 BARTLETT'S FERRY - NPDES PERMIT No. GA C 001490 TALLULAH FALLS HY3R0 - NPDES PERMIT No. GA 0004162 While the information contained in this report is a true, and accurate and complete presentation of measurements analytical results observed, such information is subject to the inherent variabilities to make the measurements and results.

Such variabilities and inaccuracies are not within the reasonable control of the permittee. The permittee reserves the right to claim all legal and equitable defenses available to it in connection with any exceedances reflected in this report.

For these reasons, among others, this report should not be interpreted as an admission by the permittee of perv.it violations.

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

. i If you have questior.s or comments, please advise.

J Yours very truly,

.\

Q I ?

C. M. Hobson GNGtKD:-

, Enclosure ..... .

1

-l bc Messr s. -. C. K. McCoy P. P. Boren v/a l J. T.--Beckham A. R. James w/a-C. L. Donaldson K. M. Stefanini w/a R. L. Boyer J. M. Mostellar w/a

'J. L.. Conn M. D. Kee w/a H. L. Sumner w/a W. B. Shipman w/a J. R. Pope w/a R. L. IdrGrand w/a W. E. Pitts w/a - B. R. Quick w/a- ,

R. E. Leggett w/a R. A. Pollock -w/a H. L. Beacher w/a J.- H. Jones w/a

-W. C. Sewell w/a W. C. Carr - w/a E. E. Joyner w/a A. P. Reeves W/a File 07-03-01 ,

I

+

W b

.- , k m. + . , - . . _ . - _ - . . . _ . . _ . ~ , - . .

000-13-?00 22:50 T- 2032-03 Page 1 of 13 NPDES: OPERATION MON nVRING REPORT Georgia. Power Company From: 10-01-91 Plant E.I.-Natch To: 12-31-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Stuabert GA0004120 .,

Discharge Zacation: 01G - Low Volume waste (Neutralisation Tank)

Type of sample Grab ,

Frequency of_Analysist 2/Mo codes (530) (550)

Parameter: _ suspended Solids oil & Grease ag/l~ 39/1 ,

Limits:- Avg. 30 Avg. 15 Max. 100 Max. 20 Date:

10-08-91. 3.8 <5 10-23-91' O 18.5 11-04-91 1.3 <5 11-19-91 3.3 <5 12-02-91 3.6 <5

12-16-91 4.6 <5 Number of samples 6 6 Average values 2.5 3 .1 -

Nazimum vs.lue 4.6 18.5 Minimuu Valuet 0 45 Limits-Exceeded: 0 0 .

+ "

Page 2 08 13 NFDES OPERATION MONITORING REPORT Coorgia Power company From: 10-01-91 Plant E.I. Hatch Tot 12-31-91 0 P.O. Box 4545 Atlanta, Osorgia 30302 Parmit Numbert GA0004120 Disch rge Location: 01R - Low Volume Wasts (Pressura Filters Backwash)

[ Type of Samples Grab L Prequancy of Analysin: 1/Qtr Codet (530) (550)

Parameter Suspended Solids 011 & Gransa ag/l ag/l

\ Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Datet 11-05-91 (A) --

<5.0 11-05-91 (B) --

<5.0 11-05-91 (C) --

<5.0 11-05-91 (D) --

45.0 11-19-91 (A) <1.0 --

11-19-91 (B) <1.0 --

11-19-91 (C.5 <1.0 --

, 11-19-91 (D) < 1. 0 , --

Number of Banples: 4 4 Average Valuet <1.0 <5.0 Maximum Valua: <1.0 <5.O Minimum Valust <1.0 <S.0 LIMITS XXCIIDED 0 0 l

\

1 Page 3 og 13 l y HPDES: OPERATION MONITORING REPORT Fren 10-01-91 fji Georgia Power company Tot 12-31-91 Plant E.I. Hatch P.O. Box 4545 Permit Numbert GA0004120 Atlante, Georgia 30302 Discharge Location 01A - Cooling Tower Riovdown Unit One Slowdown Riowdown Tower Basin Tower Easin Location Mitp1 Blowdown Grab Type Grab Mitp1 Grab Mitp1 Grab Grab 1/Qtr 1/Qtr Frequency: 1/WX/ Unit 1/wx/ Unit 1/wx/ Unit Chromiu:

Fac-max. Total Time 2Lnc Paramstart FAC-avg. max. max.

of TRC rol

& TRC avg.

(min.~ag/1) (ag/1) (aq/1)

(ag/1) (ag/1) 120 1.0 0.2 Limita 0.2 0.5 81400-50060 1092 1034 Codes: 50064 50064 Dates DOS 003 00S 005

10-04-01 00S 00S 008 DOS DOS 00S OCS

10-09-91 003 00S 005 008 00S 00S OCS

10-16-91 00S 003 005 00S 008

10-23-91 OOS 00S 005 00S 00S 00S

10-30-91 00S <.1 -- --

4.1 4.1 0 11-06-91 <.1 0 <.1 -- --

11-14-91 <.1 0 <.1 -- ~~

11-20-91 <.1 <.1 -- --

<.1 0 <.1

- 11-27-91 <.1

~~ -- -- <.1 <.1 12-01-91 --

0 0.25 -- --

12-04-$1 0.1 0.1 -- --

<1 <.1 0 0.1 12-11-91 0 0.12 -- -- .

12-18-91 0.1 0.1 ~~ --

<.1 0 <.1 12-25-91 <.1 Numhte of 8 8 8 1 1 Samplest 6 0 <.1 <.1 <.1 Avg value <.1 <.1 <.1 0.1 0.1 0 0.25 <.1 Max Valuat 0 <.1 <.1 <.1 Min Valuas <.1 <.1 Limits 0 0 0 0 0 Exceadad 0

01A COOLING TOWER BIDWDOWN IS 008 DUE TO OUTAGE.

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

Page 4 of 13 NPDEst OPERATION MONITORING - REPORT ,

Georgia Power Cospany Front 10-01-91 Plant E.I. Natch Tot 12-31-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Numbers GA0004120 Discharge 14 cation: 02A - Cooling Tower Blowdown Unit Two F

% atient Blowdown Slowdown Blowdown Tower Basin Tower sasin Types Mitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab .

Frequency: 1/Wk/ Unit 1/Wk/ Unit 1/Wk/ Unit 1/Qtr 1/Qtr Parametart FAC-avg. Fac-max. Total Time Eine Chromina of TRO rei max. max.

& TRc avy.

(29/1) (39/1) (min.-ag/1) (kg/1) (59/1) i Limitst 0.2 0.5 120 1.0 0.2 Codest 50064 50064 81400-50060 1092 1034 l

Date -

10-04-91 <0.1 <0.1 0 <0.1 -- --

10-07 91 ~~ -- -- --

<0.1 <0.1

, 10-09-91 <0.1 <0.1 0 <0.1 -- --

10-16-91 <0.1 <0.1 0 <0.1 -- --

10-24-91 <0.1 <0.1 0 <0.1 -- --

10-30-91 <0.1 <0.1 0 (0.1- -v ~~

11-06-91 <0.1 <0.1 0 <0.1 -- --

11-07-91 >2.0 >2.0 50 >2.0 -- --

11-14-91 <0.1 <0.1 0 <0.1 -- --

11-20-91 0.1 0.1 0 0.13 -- --

11-27-91 <0.1 <0.1 0 0.13 -- --

12-04-91 <0.1 <0.1 0 0.13 -- --

12-11-91 0.1 0.1 0 0.12 -- --

A2-18-91 0.1 0.1 0 0.14 -- --

12-25-91 <0.1 <0.1- 0 <0.1 -- --

Muaber-of samples: 14 14 14 14 1 1 Avg Values .15 .15 3.57 .19 <0.1 <0.1 Max Valust >2.0 >2.0 50 >2.0 <0.1 <0.1 Min valuet <0.1 <0.1 0 <0.1 <0.1 <0.1 Limits Exceeded: 1 1 0 0 0 0

SEE ATTACHMINT I i

1

g_ _y _y.

r NPDES: OPEMTICH MON 8TORING REPORT Coorgia Power company From: 10-01-91 Plant E.1. Hatch Tot 12-31-01

.P.O. Box 4S45 Atlanta, Georgia 30302 Parmit Number: OA0004120 Discharge Location: 013 - Unit One Cooling Water Overflow Location: Blowdown Blowdown Blowdown Tower Disch. Tower Disch.

Type Mitp1 Grab Mitp1 Grah Mitp1 Grab Grab Grab Frequency -1/WX/ Unit 1/Wk/ Unit 1/WX/ Unit 1/Qtr 1/2tr Parameter FAC-avg. Fac-mar. Total Time Eine Chromium of TRC rol max. max.

& TRC avg.

(ag/1) (mg/1) (min.-mg/1) (ag/1) (mg/1)

Limita: 0.2 0.5 120 1.0 0.2 Codos 50064 50064 81400-50060 1092 1034 Datet 12-01-91 -- -- -- c.1 <.1 Number of Sampleet 0 0 0 1 1 Avg Valust == -- --

c.1 <1 Max-valuet -- -- --

<.1 <.1 Min values -- -- --

4.1 <.1 Limita-Exceeded: 0 0- 0 0 0 l

1

POge'6 of 83 ;

MPDES: OPERAT20N MONITORIMO REPORT Georgia Power Company From: 10-01-91 -

Plant E.I. Retch Tot 12-31-91 P.O. Box 4S45-Atlanta, Georgia 30302 Permit _ Number GA0004120 Discharge Location: 035 - Unit Two coolitig Tower Overflow To 4torm

.- Drains Locations- 31owdown 510wdown slowdown Tower Disch. Tower Disch.

Type Mitp1 Grab Mitp1 Grab Mitp1 Grab Grab Grab i Frequency: 1/Wk/ Unit 1/WX/UnAt 1/WX/ Unit 1/Qtr 1/Qtr i Parameter FAC-avg. Fac-max. Total Time Eine Chromium of TRC rol max. max. '

i & TRC avg.

(ag/1) (ag/1) (min.-ag/1) (39/1) (ag/1)

Limits: 0.2 0.5 120 1.0 0.2 Cojes 50064 50064 51400-50060 1092 1034 !

Date 12-01-91 -- -- -- <0.1 <0.1 1

4

-Number of 4 samples 0 0 0 1 1

. Avg Value O O O <0.1 <0.1 Max Value: 0 0 0 <0.1 <0.1 Min-Value 0 0 0 <0.1 <0.1 ,

Limits Exceedad 0 0 0 0 0 >

I i

..- ~ -_

, Page 7 of 13 NPDES 8 QPFJLAT30N MONITORING REPORT Georgia Power Company Prost 10-01-91 Plant E.I. Hatch Tot 12-31-91 i

P.O. Box 4545 l Atlanta, Georgia 30302 Permit Numbert GA0004120 l i: Discharge Locationt 02C - Unit Two Cooling Water Overflow Escatient. Slowdown Slowdown Blowdown Tower Disch. Tower Disch.

i l

. Typet K1tp1 Grab Mitp1 Grab Mitp1 Grah Grab Grab Frequency: 1/Wk/ Unit 1/WX/ Unit 4

Parameter: FAC-avg. Tec-max.

1/Wk/ Unit 1/Qtr 1/Qtr Total Time Eine Chromium i of TRC rol max. max.

& TRC avg.

(ag/1) (39/1) (min.-ag/1) (ag/1) (ag/1) j Limitat 0.2 0.5 123 1.0 0.2 codes:

50064 50064 41400-50060 1092 1034 Dates 12-01-91 == -- --

<0.1 <0.1 6

i

' Number of Sampleet. 0 0 0 1 Avg Value: 1 0- 0 0 Max Value

<0.1 <0.1

C 0 0 <0.1 <0.1 L Min Valuat 0 0 0 <0.1 <0.1 Idmits Exceededt. 0 0 0 0 -0 i

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!!PDES: CPERATION MONITORING REPORT Georgia Power company From: 10 01 91 Plant E.I. Match Tot 12-31-91 _

P.O. Box 4545 -

Atlanta, Georgia 30302 Permit Number GA0004120 _.

' Discharge locationt 01E - Low Volume Waste (Liquid Radwaste systen Unit One) ,

Type of Sample Grab Frequancy of Analysist 2/Mo Codas (530) (550) -

Parameter: Euspended Solids 011 & Grease ng/l ag/l _

Limits: Avg. 30 Avg. 15 Max. 100 Max. 20 Datet 10-07-91 0.19 2.86 10-21-91 0 4.83 11-04-91 12.5 7.19 11-18-91 32.0 t <61 -

12-02 91 1.5 0.09 12-17-91 57.0 18.0

~

Humber of samplest 6 6 Average value 17.20 7.03 Maximua value: $7.0 16.0 Minimun Value 0 0.09 Limits ExcaedtM4 0 0

+

gpg = .ga #

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Page 9 08 13

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NPDES: OPERATION MONITORING REPORT l 4

Georgia Power Coupany From: 10-01-91 Plant E.I. Hatch Tot 12-31-91 P.O. Eor 4545 Atlanta, Georgia 30302 Permit Numbert GA0004120 Discharge Location 02E - Lov Voluna Waste (Liquid Radvaste System Unit Two)

Type of Sample: Grab Frequency of Analysis: 2/Mo codes (530) (550)

Paramatart Bunpended solids oil & Gretas 29/1 h7/1 Linits: Avg. 30 Avg. 15 Max. 100 Max. 20 Data:

10-08-91 7.14 0 30-21-91 1.07 4.55 ,

11-04-91 2.84 0.59 11-18-91 0.57 1.55 12-02-91 0.68 1.13 12-16-91 0.20 0 Number of Samples: 6 6 Average values 2.08 1.30 Maximum Values 7.14 4.55 Minimum value 0.2 0 Limits Exceedad: 0 0

P8ge 10 of 13 NPDES: OPERATION MONITORING REPORT Georgia-Power Compkny- -Fram 01-91 Plant E.I. Match 7o8 12-31 P.O. Box 4545-Atlanta, Georgia 30302- Permit Numbert Sh0004120-Discharge Location: 01 - Combined Plant Waste streana Unit One Frequency of Analysis 1/WX Type of samples In situ Grab Grab Grab 1 Parametert- Tamperature T.R.C. F.A.C. pN Limits: Dog. F N/A W/A Min. 6.0 Max. 9.0 Codes (11). (50060) (50064) (400)

Date:

10-07-91 69 <0.1 <0.1 7.5 10-14-91 71 <0.1 <0.1 6.9-10-21~91 69 <0.1. <0.1 7.7 10-38 70 <0.1 <0.1 7.2 i '

<0.1 <0.3 7.7

, 11-04-91 57 11-11-91 53 <0.1 <0.1 7.8 '

11-18-91, 64 <0.1 < <0.1 7.8 11-25-91: 51- . <0.1 <0,1- 7.8 12-02-91' 80 <0.1 <0.1 8.3 12-09-91 78 <0.1 <0.1 7.4 12-16-91 69 <0.1 <0.1 7.4 12-23-91 75 (0.1 <0.1 -7.8 .

12-30-91 57 1.2 1.4 7.6 13 13

. Number of sampless. 12 13'

' Average Value 46.7 <0.1 .11- 7.61 1.2 Maximum Values 80 1.4 8.3 Minimum Values 51 <0.1 <0.1 6.9 Limits Exceeded: 0 0 0 0

SEE ATTACHMENT-II f

l m'ei m .-5.--.w . ~ . , . , ,. , .__,,- ,, ~~ . w.py- ,, ._,,g. rm--w---

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, Paga la et 12 NPDEst OPERATION MONITORING RIPORT Georgia Power company Front 10-01-91 Flant E.I. Natch Tot 12-31-91 P.O. Box 4545 Atlanta, Georgia 30303 Parmit Muabert GA0004120 Discharge Location 02 - Combined Plant '#E3ta Streams Unit Two Frequancy of Analysis: 1/WX Type of Jazplest In Situ Crab Grah Grab Parameter: Tampar'ture a T.R.C. F.A.C. pH Limitst Dwg. F N/A N/A Min. 6.0 Max. 9.0 i

Codet (11) (50060) (50064) (400)

Datet 10-07-91 77 <0.1 <0.1 7.7 10-14-91 69 <0.1 <0.1 7.2 10-21-91. 75 <0.1 <0.1 7.9 10-28-91 79 <0.1 <0.1 7.5 11-04-91 68 <0.1 <0.1 8.0 11-07-91 66 <0.1 <0.1 7.8 11-11-91 66 <0.1 <0.1 4.6 11-16-91 60 <0.1 <0.1 7.6 11-2S-91 66 <0.1 <0.1 7.9 12-02-91 70 <0.1 <0.1 7.7 12-09-91 66 <0.1 <0.1 7.5 12-16-91 64 <0.1 <0.1 7.5 -

12-23-91 62 <0.1 <0.1 7.9 12-30-91 62 <0.1. <0.1 7.5 Number of samples: 14 14 14 14 Average Values 67.9 <0.1 <0.1 7.7 Maximua Valta 79 <0.1 <0.1 4.6 Minimum Valust 60 <0.1 <0.1 7.2 Limits F.xceededt 0 0 0 0 l

Page 82 ef 13 NPDESt OPERATION MONITORING REPORT Georgia Power Company From: 07-01-91 Plant E.I. Hatch To 09-30-91 P.O. Box 4545 Atlanta, Georgia 30302 Permit Number GA0004120 I certify under the penalty of law that thin document and all attschments were prepared under the direction or supervision in accordance with a systaa designed to assure that qualified personnel ,

properly gather and evaluta the information submittad. Based on my inquiry of the person or persons who ma.nage the systam, or those per-sons directly responsible for gatharing the information, the infor-nation submitted is, to the best of my knowledge and belief, true, accurate, and complete. I an aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

4b r (4 mud M . L. $ t/MNER , n.

GENERAL MANAGER HUCLZAR PIMt 9

l Page 13 of 13 NPDESI 0FDATICH. MONITOR.ING REPORT 1 Georgia-Power Company Front 07-01-91 F1knt E.1. Match Tot 09-30-91' P.O. Box 4545

-Atlanta, Georgia 30302 Permit Numbert GA0004120 All values reported are subject to the analytical variability of the 5

approved test procedures as follows:

Paramatar Eggg3 BOD +/- 0.9 ag/l TSS +/- 1.3 mg/l O&G +/- 1.s ag/l pH +/- 0.05 Cr +/- 0.03 mg/l 2n +/- 0.06 ag/l Fa +/- 0.03 mg/l Kn +/- 0.01 39/1 -

Otal P +/- 0.003 3g/1 Tamperature +/- 0. 9 T

_--_________-___-___-_-_______-___-___a

i PLANT t i >aic" NPDES LOG C AUSE AND ACTION TAKEN TO I i ,

DATE / TIME l ANTICIPATED Od APPROX. REDUCE /ELIMlHATE / PREVENT, IsAMPLEs sAmets)

EVENT ACTUAL DATEI FLOW RECURRENCE

TAKEN ftEBULTS DEGAN TIME CEASE 8 RATE 11/07/910 0800 ESl 11/07/91 9 0850 EST Unkrwrm During rmtine chlortnation of the thf t 2 Tes ~ r fn Circ Wate; system chlorinated water was d!scharged to the river as a result of the thf t 2 cooling tower blowdown valve torque _

switch failure. This allowed chlorinated i

water to t>e d!sel.arged at the discharge -

structure. Mter the valve was determined 4

to have failed, the valve was manually closed. Since this incident the valve torque switch has been repatred. This incident was reported to the GA EI'D via j written report on 11/12/91.

e e

i

A TACHMENT 2 PLANT t i >=>c" _

NPDES LOG DATE / TIME IANTICIPATED OR APPROX. CAUSE AND ACTION TAKEN TO L l EVENT A C T U A t. D A T E / FLOW REDUCE /ELIMlHATE IPREVENT, aAMFLEs ' s Aur tie'l RECURRENCE

TAKEN REPUt_TS DEGAN T!ME CEASES RATE 12/30/91 90730. 12/30/91 91000 , Unknown Duriag a weekly _saapiina.of the Dischar le 'yes TRC 1.4ppe 5tructure it was indicated that chloria nted FAC 1.2 ppa water was being discharaed. The reason g, for the discharge was determined to be j

{

a failed olant service water chlortue l t

addittnn valve. One to the failure, the

}

Unit 1 Service water system was receivi ,g an unintentional chlorine treatment. An' j Event review was performed on this inct ient and measures wlil be taken to alleviate 3

this from occuring anatn. This incident p

was reported to the State EPD via a wri Lten repor ,.

j 0.

PLANT MANAGEROnen e d(e

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- 1991 FLOW MONITORING AND CHARACTERIZATION STUDY i

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Gen e Nwe co-can, 332 P'eoment Avenue Anan:a Geps; a 303M Te6epnone ca 506 (E.M u..hno Aa n st Fest oil.ce Bos 645 Anan:a Georg a 303^ ? h Georgia Power chris u. Hoe $on tv seem e e.c s.s+-

Manecer, ticens.ng ena comonance January 21, 1992 NPDES PERMIT REOUIREMENTS Flow Monitoring and Characterization Studies Annual Priority Pollutant Certification b Mr. Lawrence W. Hedges Program Manager Industrial Waste Water Program 205 Butler Street, S. E., Room 1070 Atlanta, Georgia 30334

Dear Mr. Hedges:

As taquired by the following NPDES Permits, attached are the subject studies for the referenced plants:

Plant Arkwright - MPDES Permit No. GA 0026069 Plant Bowen -

NPDES Permit No. GA 0001449 Plant Branch -

NPDES Permit No. GA 0026051 Plant Hammond -

HPDES Permit No. GA 0001457 Plant Match -

HPDES Pernit No. GA 0004120 .

Plant Vogtle -

NPDES Permit No. GA 0026706 Plant Mitchell -

NPDES Permit No. GA 0001465 Plant Wansley -

NPDES Permit No. GA 0026778 Plant Yates -

NPDES Permit No. GA 0001473 The flow study for Plant McDonough/Atkinson (NPDES Permit No.

0001431) has not yet been completed due to technical problems and unit outages. The required report will be submitted as soon hs it is available.

In accordance with the provisions of the following NPDES permits, Georgia Power Company certifies that no priority pollutants, other than chromium or zine are present in detectable amounts in the cooling water discharges of the referenced plants. This certification is based on manufacturer's certification for their products and this certification applies to pollutants present as a result of their presence in wat er treatment chemicals added by Georgia Power Company and nA their presence in raw water supplies.

Plant Mwen -

NPDES Permit No. GA 0001449 Plant n'ansley -

NPDES Permit No. Ga 0026778 Plant lates -

NPDES Permit No. CA 0901473 Plant Hatch -

NPDES Permit No. GA 0004120 Plant Vogtle -

NPDES Permit No. GA 0026786

If you have any questions or comments, please advise.

Yours very truly, i l/

)M n C. H. Hobson GHGlel Attachnorts bet c. L. Hecoy J. T. Beckham i J. L. Conn l', L. Boyer C. L. Por,aldson P. P. Boren w/a A. R. James w/a K. M. Stefanini w/a J. M. Mostvilar w/a A. P. Reeves w/a M. D. Ree w/4-H. L. Aumner R. E. Leggett w/a ,

W. C. Sewell w/a J. H. Jones w/a W. B.-Shipman w/a + . .

W. C. Carr w/a W. C. Philips w/a=

POW 07-02-01-00 w/a POW 07-02-02-00 w/a 4

POW 07-02-03-00 w/a POW 07-02-04-00 w/a POW 07-02-05-00 w/a POW 07-02-07-00 w/a i POW 07-02-09-00 w/a ;

POW 07-02-11-00 w/a POW u7-02-12-00 w/a i POW 07-02-13-02 w/a f

Pago 1 of 7 LLhEI_r.I. lihIgn NPDES TLOW CRARACTERIZATION STUDY 1991 OCT 141991 tu wtm mau This flow study was performed in accordance with Part III, Section B.9, of the Georgia Power Company, E.1. Hatch Nuclear Generating racility, National Pollutant Discharge Elimination System, (NPDES), Permit No. GA 0004120; issued by the State of Georgia, Department of natural Resources, Environmental Protection Division, on January 29, 1980.

DACYGROUND This study was conducted on the NPDES permitted vaste streams using data collected during the time period of June 24 to July 7, 1991. A 5 . description of the vaste streams are as follows:

1. NON-CONTACT COOLING This system consisted of discharges from the plant Auxiliary Heat Exchangers and the Diesel Generator Cooling.

[

The Plant Auxiliary Cooling Systems consisted of heat exchangers located in the control, radvaste, reactor, turbine and vaste gan buildings. This system was supplied by the plant service water

,~

system and discharges into the circulating water system (cooling towers) to provide make-up water. Flow rates were calculated using pump name plate data.

The diesel generator cooling water system was nupplied by the plant service water syster and discharges to the disch.srge structure mixing chamber via the radvaste discharge line. This system was used for cooling the emergency diesel generators. The diesel generators for Unit one, (1A and IC), normally had a continuous flow of cooling water regardless of th,ir operational status. Unit One's diesel generator (IB) and Unit Tvo's diecel generators, (2A and 2C),

were supplied with cooling water only during system operation; which consisted of testing and emergencinc. Flow rates and measurements were calculated using pump name plate data.

2. LOW VOLUME WASTE (NEUTRALIZATION TANK) 01G This vaste stream consisted of domineralizer regeneration vaste composed of sulfuric scid, sodium hydroxide and rinse water. All regenerative vaste was collected ir a sump and recirculated into a 38,000 gallon above-ground tank until the pH vas between 6 and 9.

Chemical addition for pH adjustment was possible, if necessary. The neatralization tank was discharged via gravity into the Unit one mixing chamber. The naximum flow rate achievable was calculated using the volume of the tank and the radius of the discharge pipe.

The daily average flow rate was calculated by dividing the total volume discharged by the total ninutes in the test period. The flov rato neacurements of this system were based on its calculated maximum flow rates and discharge duration.

m i

Pago 2 of 7 t

3. LOW VOLUME WASTE (PRESSURE TILTEst DACKWASH) 01H This vaste stream consisted of backwash water originating from four pressure sand filters that preceded the domineralizer unit. The backwash waste gravity drained into the neutralization tank discharge line. The maximum flow rate achievable was based on the '

backwash pump name plate data. The daily average flow rate was calculated by using backwosh flow rate data and operating times during the test period. The flow rate measurerents of this system were based on flow indicators for each pressure filter.

4. COOLING TOWER BLOWDOWN (UNIT ONE) 01A This vaste stream consisted of discharger from the Unit one.

closed-loop circulating water system. Make-up water for this system was derived from non-contact auxiliary plant cooling water. The discharge originated at the circulating water pumps discharge and The may,imum flow rate was routed to the Unit one mixing chamber.

achievable was based on the total pumping capacity of the plant service water system. The daily average flow rate was calculsted using the difference between the Unit one nixing chamber flow rates and the other Unit one waste streams. The flow rate measurementa of this system were based on mathematical computations relating this waste stream to all the others that were applicable.

5. COOLING TOWER BLOWDOWN (UNIT TWO) 02A This vaste stream consisted of discharges from the Unit Two closed-loop circulating water systum. Make-up water for this system was derived from the non-contact auxiliary plant cooling water. The discharge originated at the circulating water pumps dischcrge and was routed to the Unit Two mixing chamber. Tha maximum flow rate.

achievable was based on the total pumping espheity of the plant service water system. The daily avercge flow rate was calculated using the differsnee between the Unit Two mixing chamber flow ratee and the other Unit Two waste streams. The flow rate measurements of this system were based on mathematical computations relating this waste stream to all the others that were applicable.

6. COOLING WATER OVERFLOW (UNIT ONE) 01B This waste streen consisted of discharges from the closed-looped circulating water systet. Make-up water for the system originated from the non-contact auxiliary plant cooling water system. The discharge originated at the Unit one cooling tower flume and was routed to the Unit one mixing chamber. The maximum flow rate achievable was based on the total pumping capacity of the plant service water systen. The daily average flow rate was calculated by dividing the total gallons discharged by the total minutes in the test period. The flow rate measurements of this stream were based on the best conservative estimate at the time of subsequent discharge.

NOTE: This vaste stream was permitted for use in lieu of outfall number 01A.

Page 3 of 7

7. COOLING WATER OVERT 14W TO STORM DRAINS (UNIT TWO) 02B This vaste stream consisted of discharges from the closed-looped circulating water system. Hake-up vater for the system originated from the non-contact auxiliary plant cooling water system. The discharge originated at the Unit Two cooling tower basins and was routed to storm drains, then to the river. The maximum flow rate achievable was based on the total pumping capacity of the plant service water system. The daily average flow rate was calculated by dividing the total gallons discharged by the total minutes in the test period. The flow rate measurements of this stream were based on the best conservative estimate at the time of subsequent discharge.

NOTE: This vaste stream was permitted for une in lieu of outfall number 02A.

8. COOLING WATER OVERTLOW (UNIT TWO) 02C This vaste streau consisted of discharges from the closed-looped circu14 ting water systen Make-up water for the system originate

from the non-contact auxiliary plant cooling water syatum. The discharge originated at the Unit Two cooling tower fiume and was routed to the Unit Two mixing chamber. The maximum flow rate achievable was based on the total pumping capacity of the plant service water system. The daily average flow rate van calculated by dividing the total gallons discharged by the total minutes in the test period. The flow rate measurements of this stream were based on the best conservative estimate at the time of subsequent discharge.

NOTE: This vaste stream van permitted for use in lieu of outfall number 02A.

9. BOW VOLUME WASTE (LIQUID RADWASTE SYSTEM, UNIT ONE) 01E This vaste stream consisted of vaste water generated primarily in the reactor and turbine buildings. Examples of the vaste water sources were floor draine, laundry drains, laboratory drains, seal -

cooling waters and bearing cooling waters. The collective vaste was filtered and demineralized then discharged to the Unit One mixing chamber or reused in-plant depending on the chemical and radiological quality. the maximum flow rate achievable van derived from the pump name plate data. The average daily flow was calculated by dividing the total volume discharged by the total minutes in the test period. The flow rate measuroments of this stream were based on integrator readings and dischargo duration.

10. IDW VOLUME WASTE (LIQUID RADWASTE SYSTEM, UNIT TWO) 02E This vaste stream consisted of vaste water generated primarily in the reactor and turbine buildings. Examples of the vaste water sources were floor drains, laboratory drains, seal cooling waters and bearing cooling waters. The collective vaste was filtered and demineralized, then discharged to the Unit Two mixing chamber or reused in-plant depending on the chemical and radiological quality.

The maximum flow rate achievable van derived from the pump name plate data. The average daily flow was calculated by dividing the total volume discharged by the total minutes in the test period.

The flow rate measurements of this stream were based on integrator readings and discharge duration.

Pago 4 of 7

11. COMBINED WASTE STREAMS (UHlT ONE) 01 This vaste stream consisted of the total volume of all liquid waste being discharged from Unit one. The maximum flow rate was achieved using the total surface water pumping capacity on plant site. The dLily average discharge was calculated from the Unit One daily discharge flow rates during the tast period. The flow rate measurements were based on readings obtained from flow rate strip charts.

12. COMBINED WASTE STREAMS (UNIT TWO) 02 This vaste stream consisted of the total volume of all liquid waste being discharged from Unit Two. The asximum flow rate was achieved using the total surface water pumping capacity on plant site. She daily average discharge was calculated from the Unit Two daily discharge flow rates during the test period. The flow rata measurements were basse on readings obtained from flow rate strip charts.

13. INTAKE SCREEN BACKWASH 03 This vaste streem consisted of river water being used continuously to backnash thw plant's traveling water intake screen. The river water used to backwash the intake screen was gravity fed back to the river. The ma timum flow rate achievable was based on the total pumping capacity of the plant service water system for both units.

The daily average finu rate was calculated by dividing the total test period. The slow rate measurements were based on the constant backwash from the plant service water system and the engineering data review of the backwash pump name plate data.

14. 2P65 CHILLER WATER BLOWDOWN 04 This waste stream consisted of discharges from the Unit Two Reactor Building and the Radwaste Building closed-loop circulating water afstkas. Make-up water for this system originated from the plant sanitary water system. The maximum flow rate achievable was calculated using the pump name plate data. The daily average flow rate was calculated by dividing the total gallons of water discharged by the total minutes in the test period. The flow rate mahnurements were based on engineering data reviews.

15. SEWAGE TREATMENT EFFLUENT 01F This vaste stream consisted of the plant domestic sewage vaste that was created by two aeration package treatment plants. Dischargo from this facility was routed to the Unit One mixing chamber. The maximum flow rate achievable was calculated using the designed capacity of the aeration plants. The daily average flow rate was calculated by dividing the total gallons of water discharged by the total minutes in the test period. The flow rate measurerents were based on readings obtained from a flow rate strip chart.

Pago 5 of 7 PLANT-I.I. HATCll 673 F14W CHARACTERIZATION STUDY (CCH'T) 1991 IAMJ f,Q,$1J. g? ZR AND NAME MAXIMUM fanm) DAILY / AVG farm) run-Contact Cooling Water 3,500 1,410 (a)

(Diesel Generator Cooling) i Hon-contact Cooling Water 68,000 45,000 (i) !

.(Plant Auxiliary Systems) l OlG Low Volume Waste 650 9 (b) j (Neutralization Tank) 01H Low Volume Waste 1,050 2 (c)

(Pressure Filter Backwash) l 03.A Cooling Tower Blowdown 34,000 (f) 15,820 .

(Unit One) 02A Cooling Tcwar_ Blowdown 34,000 (f) 8,000 (Unit 1vo) 01B Cooling Water Ovarflow 34,000 (f) 0 (Unit One) ,

02B Cooling Tower Overflow 34,000 (f) O to Sterm Drains /

(Unit Two) 02C Cooling Water Overflow 34,000 (f) 0 (Unit Two) 01E Low Volume Wasta, Liquid 100 12 (d) ;

Radwaste (Unit One) 02E Low Volume Warde, Liquid 100 7 (e) i Radwaste (Unit Two) i 01 Combined Plant Waste 50,000 15,900 i Streams (Unit One) 02 Combined Plant Waste 50,000 8,000 Steams (Unit Two) 03 Intake Screen Backwach 68,000 412 (g) 04 2P65 Chiller Water Blowdown 500 5-(h) '

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01F Sewage Treatment Plant 50 8 Y

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Pago 6 of 7 I ELANT r.1. MATc11 1

, NPDES FLOW CHARACTERIZATICH STUDY (CON'T) l 1991 TOOTNOTES

. (a) The daily average flow rate for cooling water for the diesel generators 1,400 gpm. However, during the flow stud-/ test period, the diesels operated only 4.0 hours0 days 0 hours 0 weeks 0 months .

(b) During the sample period, 174,400 gallons were discharged in 7 batches at a rate of 650 gpm. The total discharge time during the

. two week period was 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months .

(c) Actual backwash time during.the two week period was 40 mAnutes at a rate of 710 gpm and 40 minutes at a rate of 250 gpm.

(d) Duririg-the sample period, 243,160 gallons of waste water were discharged from the Unit one mixing chamber at an average rate of ,

4 65.6 gpm for 61.8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

(a) During the gample period,- 139,109 gallons of waste water were discharged from_the Unit Two mixing chamber at an average rate of 50.8 gpm for 39.4--hourn.-

This figure reflects the-total-surface water withdrawal capabilities (f) at the plant consisting of service water espacity of 68,000 gpm and residual heat removal (RHR) piping capacity of 16,000 gpm. RHR is .

used primarily during plant shutdown.

(g) Under normal operating conditions, the Intake Screen Backwash r discharges.at a daily average rate of 412 gpm.

(h) Under, normal operating conditions, the 2p6b Chiller Water Blowdown discharges at a daily average rate of 5 gpm.

(i) Under normal operating conditions,-the Unit one Plant Auxiliary System uses approximately 22,000 gpm and under normal operating canditions, the Unit Two Plant Auxiliary System uses approximately 21,250 gpm.

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Pago 7 of 7 PLMIT r. I . HATgli NPOES FI.4W CHARACTERIZATION iiTUDY (CON'T) 1991 WATER TREATHENT CliEMICAL INVDITORY This js a list of the chemicals used at Flant Edwin I. Hatch for the purpose of water treatment:

1. ALS-345-220 Corrosion Inhibitor

2. Borax

3. Boric Acid

4. Ortho-Phosphate

5. Sanuril 115 (calcium flypochlorite)

6. Sodium Hydroxide

7. Sodium Hypochlorite

8. Sodium Nitrite

9. Sodium Pentaborate

10. Sulfuric Acid I

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HL-2121, Annual Environmental Surveillance Rept - 1991

Contents

Text

Enclosures:

References:

Subject:

Subject:

Subject:

Dear Mr. Hedges:

Background

Title:

Dear Mr. Hedges:

Dear N,

Dear Mr. Word:

= i

Dear Mr. Word:

Dear Mr. Hedges:

Navigation menu

HL-2121, Annual Environmental Surveillance Rept - 1991

Text

Enclosures:

References:

Subject:

Subject:

Subject:

Dear Mr. Hedges:

Background

Title:

Dear Mr. Hedges:

Dear N,

Dear Mr. Word:

= i

Dear Mr. Word:

Dear Mr. Hedges:

Navigation menu

Search