ML20012C724

NPDES Permit NC0024392,issued to Duke Power Co

ML20012C724
Person / Time
Site:	McGuire, Mcguire
Issue date:	01/19/1990
From:	Wilms R NORTH CAROLINA, STATE OF
To:
Shared Package
ML20012C702	List: ML20012C701 ML20012C724
References
NC0024392, NC24392, NUDOCS 9003230121
Download: ML20012C724 (36)

Text

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, , , Permit No. NC0024392:

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I STATE OF NORTH CAROLINA DEPARTMENT 0F NATURAL RESOURCES AND COMMUNITY DEVELOPMENT DIVISION OF ENVIRONMENTAL MANAGEMENT ,

1 P_E R H I T 1 To DISCHARGE WASTEWATER'UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM in compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina-Environmental Management Commission, and the Federal Water Pollution Control-Act,;as amended, Duko Power Company is hereby authoriznd to discharge wastewater from a facility located at McGuire Nucinar Station Mncklenburg County to recniving waters designated as Catawba River in thn Catawha River Basin

.i n accordance with effluent limitations, monitoring requirements, .and other ,

conditions set forth in Parts I, II, and III hereof. I This permit. shall hncomo effective February 1,1990 This permit and the authorization to discharge shal1 expire at midnight on  ;

January 31, 1995 l l

Signed this day January 9, 990 f ] 'f \

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[ R. Paul Wilms, Division

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of Env (irowen:n Management _;

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By Authority of the Ens'ronmental Management Commission 90032-3011.I i f W C ' l' 9 003, yh 0' y>0Lo cuo 36 g

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Permit No. NC0024392 SUPPIE. MENT *!U . PERMIT COVER SHEET Duke power Company is hereby authorized to:

1. Continue to operate wastewater treatment facilities necessary to comply with final effluent limitations contained . in this permit located at the McGuire Nuclent Station (See Part III of-this Permit), and

2. Continue to discharge condenser cooling water, conventional low pressure service water, nuclear service water, and turbine building sumps (outfall 001) at the location specified on the attached map into Lake Norman which is classified Class "WS-III" and "B" waters in the Catawba River Basin, and-

3. Continue to discharge steam generator. blowdown, condensate domineralizer backwash, waste treatment system backwash, domineralizer bachwash, building. drains, metal cleaning wastes, and. turbine-building sumps after treatment in the wastewater treatment system consisting of an initial holding pond, two settling ponds, a final holding pond, ar.d ef fluent pil adjustment consisting of automated CO2 addition (outfall 002) at the location specified on the i attached map into the Catawba River which is classified Class "WS-III" waters in the Catawba River Itasin, and

4. Continue to dischnrge domestic waste from the sanitary wastewater  ;

treatment plant consisting of a multicellular nerated-facultative lagoon,=a j chlorine contact chamber, and a parshall flume (outfall 003) via the Wastewater Collection Basin (outfall 005) at the location specified on the attached map into the Catawba River which is classified Class "WS-ITI" waters in the Catawba River Basin, and

5. Continue to discharge low level liquid radwaste,from the radwaste system  !

consisting of filters, ovaporators, and demineralizers (outfa11-004) via l outfall 001 at the location specified on the attached map into j hake Norman which is classified Class "WS-III" and Class "B" waters in'the Catawba River Basin, and i 1

6. Continue to discharge effluent from the sanitary waste treatment system, overflow from the standby nuclear service water pond, a laboratory sink, and floor drain, building drains, and condenser cooling water system unwatering from a large settling pond with a surface baffle (outfall 005) at the location specified on the attached map into the Catawba River which is classified Class "WS-III" waters in the Catawba River Basin.

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A.- (1). EFFIDENT LIMITATIONS AND MONITORING REQUIREME!GS Final NPDES No. NC0024392 .

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During the period beginning on the effective date of the permit and lasting until expiration, the Permitt'ee is authorized to discharge from outfall(s) serial number (s)001 - Once through cooling water. Such discharges shall be limited and monitored by the Permittee as specified below:

Effluent Characteristics Discharge Limitations Monitorinz Requirements Lbs/ day Other Units (Specify) Measurement Sample

• Sample Mn Am a Man MW Am DaHy Max. hequency h h tion 3

Intake Flow - m / day (BGD) Report Report Daily Pump Logs Temperature (October through June) 95 degrees F Daily Recorder Temperature (July, August, September) 99 degrees F Daily Recorder Total Residual Chlorine (mg/1)*** 0.20 mg/1** Weekly. Multiple Grabs **

Time of Chlorine Addition *****

Hydrazine 0.06 mg/l **** Calculations Acute Toxicity ****** Quarterly Composite Simultaneous chlorination of units is permitted.

Discharge of any product registered under the Federal Insecticide, Fungicide, and Rodenticide Act is prohibited unless specifically authorized elsewhere in this Permit.

• Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location (s): Flow shall be monitored at the intake; temperature, acute toxicity, and hydrazine shall_be monitored at the discharge canal bridge; chlorine shall be monitored at the discharge structure corresponding to an individual unit.

• • Multiple grabs shall consist of grab samples collected at the approximate beginning of TRC discharge and once every 15 minutes thereafter until the TRC is no longer detectable. " Daily maximum" as it applies to TRC means ti>e instantaneous maximum at any time.

• • • Monitoring of TRC is not required except during and subsequent to chlorination. Monitoring shall begin immediately upon start-up of chlorination and shall discontinue when TRC is no longer detected. Total residual chlorine may.

not be discharged from any single generating unit for more than two hours per day unless the discharger demonstrates to the State that discharge for more than two hours is required for sacroinvertebrate control.

• • • • The hydrazine limit shall be calculated once on any day on which a discharge of hydrazine occurs from the Radwaste System and turbine building sumps (based on process knowledge). The calculations shall take into account flows from the Once Through Cooling Water and the Radwaste System or turbine building sumps. There shall be no discharge of floating solids or visible foam in other than trace amounts outside of an area five meters from the discharge point.

• • C** The permittee shall maintain a log on file at the plant of any chlorination events within each unit. The log shall contain a listing of each system that is chlorinated, the volume (flow in GPM) of the system, the total minutes for the chlorination event, and the beginning and ending time for each chlorination event. The log

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shall be kept on file for review by DEH representatives end copies must be submitted to the DEM upon request by any representative of this Division. Chlorination events in closed loop systems that result in a non detectable level of Total Residual Chlorine are allowed to be discharged without maintaining a log or conducting sampling at the effluent.

• • • • • • Acute Toxicity (Daphnid 24 hr.) No Significant Nortality at 90%; February, May, August and November; See

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A. (2). EFFLUEIR LIMITATIONS AND MONI'IDRING REQUIREMEPGS Final NPDES No. NC0024392-During the period beginning on the effective date and lasting until expiration the Permittee is authorized to discharge from outfall(s) serial number (s)002 - Conventional Wastewater Treatment -Facility. Such discharges shall be limited and monitored by the Permittee as specified below:

Effluent Characteristics Discharge Limitations Monitoring Requirements Ibs/ day Other Units (Specify) Measurment Sample

• Sample Monthly Avg. Daily Max. . Monthly Avg. Daily Max. Frequency Type Location Flow Daily Instantaneous E Oil & Grease 15.0 mg/l 20.0 mg/l Monthly Grab E NH3 as N Monthly Grab E Total Suspended Solids 30.0 mg/l 100.0 mg/l Monthly Grab E Total Residual Chlorine *** Monthly Grab E pH Monthly. Grab ~ 'E Hydrazine 4.4 mg/l Weekly Grab E Total Phosphorus Quarterly Grab E Total Nitrogen . Quarterly Grab E MBAS Monthly Grab E Sulfate Monthly Grab E Lead **** Grab E Acute Toxicity ** .

. Quarterly Grab E-Pollutant Analysis ***** Annually E Sample locations: E - Effluent

• Effluent sampling shall be conducted at the discharge prior to mixing with .any other waste' stream.

• O Acute Toxicity (Daphid 48 hr) LC50 80*.; February, May, August and November; See Part III, Condition X.

• • O Total residual chlorine shall be monitored once per batch within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of injection when chlorine is used for' treatment purposes.

The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be --

monitored as indicated above.

• • • • Lead shall be monitored once per month for a period of twelve months. Monitoring for lead may be discontinued after the twelfth month unless specified in other correspondence by the DEM.

There shall be no discharge of floating solids or visible foam in other than trace amounts outside an area five meters from the discharge point.

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A. (3). EFFIJJENT LIMITATIONS Ale MONI1T3 RING REQUIREMEN13 Final NPDES No. NC0026392 .

During the period. beginning on the effective date of the permit and lasting until expiration,the Pemittee is authorized to discharge from outfall(s) serial number (s) 003 ik-== tic Wastewater Treatment Facility. Such i'

discharges shall be limited and monitored by the Permittee as specified below:

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Effluent Characteristics Discharme Limitations Monitorinz Requirements i

Ibs/ day Other Units (Specify) Measurement 5 ample'

• Sample Monthly Avg. Daily Max. Monthly Avg. Daily Max. Frequency Type _Locatica Flow Weekly Instantaneous E BOD,5 Day, 20 C 30.0 mg/1. 45.0 mg/l 2/ month Grab E-

~TSS 90.0 mg/l 135.0 mg/l -2/ month Grab E Fecal Coliform (geometric mean) 200.0/100 ml 400.0/100 ml 2/ month Grab E Total Residual Chlorine Weekly Grab E-i

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• Sample locations: E - Effluent

• Me pH shall not be less than n/a standard units nor greater than n/a standard units and shall be .

monitored monthly at the effluent by grab sample.

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d A. (4). EFFIEENT LIMITATIONS AND MONI11) RING REQUIREMENTS Final NPDES No. NC0024392 During the period beginning on the effective date of the permit and lasting until expiration the Permittee is authorized to discharge from outfall(s) serial number (s) 004 Radwaste - Processing System **.

Such discharges shall be limited and monitored by the Permittee as specified below:

Effluent Characteristics Discharge Limitations Monitoring Requirements Lbs/ day other Units (Specify) Measurement Sample

• Sample Monthly Avg. Daily Max. Menthly Avg. Daily Max. Frequency Type Imcation Flow Weekly Instantaneous Effluent TSS 30.0 mg/l 100.0 mg/l Quarterly Grab Effluent Oil and Grease 15.0 mg/l 20.0 mg/l Quarterly Grab Effluent Hydrazine *** Grab Effluent O Effluent - Monitoring will be required after radweste treatment but prior to any. dilution with cooling water.

In the event the turbine building sumps are discharged to Lake Norman'and are not treated in the radwaste processing system, the above discharge limitations shall also apply to the turbine building sump discharge.' .Each discharge from the turbine building sumps shall be monitored for flow, TSS, oil and gresse, and hydrazine, if applicable, as specified above by grab samples.

000 Each batch that contains hydrazine that is collected in the Radwaste' System or turbine building sumps shall be monitored.

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A. (5). EFFIDENT LIMITATIONS AND MONIERING REQUIREMENTS Final NPDES No. NC0024392 During the period beginning on the effective date of the permit and lasting until expiration the Permittee is authorized to discharge from outfall(s) serial number (s) Wastewater Collection Basin 005. Such discharges shall be limited and monitored by the Permittee as specified below:

Effluent Characteristics Discharme Limitations Monitoring Requir==masats

~Lbs/ day Other Units (Specify) Measurement Sample

• Sample Monthly Avg. Daily Max. Monthly Avg. Daily Max. Frequency Type Iecation Flow Daily Instantaneous E BOD,5-day, 20 degrees C Monthly Grab E~

Total Suspended Solids Monthly Grab E Fecal Coliform (geometric mean) Monthly Grab E Oil and Grease 15.0 mg/l 20.0 mg/l 2/ month Grab E Total Copper . Monthly Grab. E Total Iron Monthly Grab E Chronic Toxicity ** Quarterly Grab E Alkalinity ' Monthly Grab .E' Total Phosphorus Monthly Grab 'E TKN Monthly Grab -E NO2 + NO3 Monthly Grab E.-

NH3 as N Monthly Grab' E

• Sample locations: E-Effluent, I-Influent

• • Chronic Toxicity (Ceriodaphnia) P/F at 12*.; January, April, July, October; See Part-III, Condition R.

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The pH shall be monitored monthly at the effluent by grab sample.

There shall be no discharge of floating solids or visible foam in other than. trace amounts.

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o A. (6). EFFLUENT LIMITATIONS AND MONITORING REQUIREMDTIS Final NPDES No. NC0024392 During the period beginning on the effective. date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number (s) 006 - Chemical Metal Cleaning Wastes.

Such discharges shall be limited and monitored by the Permittee as specified belott:-

Effluent Characteristics Discharme Limitations Monitoring Requirements Lbs/ day Otber Units (Specify) Measurement- Sample

• Sample Monthly Avg. Daily Max. Monthly Avg. Daily Max. Frequency Type Imcation Flow 1/ batch Instantaneous E Total Copper ** 1.0 mg/l 1.0 mg/l 1/ batch Grab E Total Iron ** 1.0 mg/l 1.0 mg/l 1/ batch Grab E These limitations apply to all chemical metal cleaning wastes treated at the facility.

The treated wastewater from the chemical metal cleaning wastes operation is allowed to be discharged through any other permitted outfall. All limitations on outfall No. 006 must be met prior- to intermixing with any other wastes streams except for pH when the waste is sent through the Conventional Wastewater Treatment Facility. The pH must ' be met.at the outfall from the Conventional Wastewater Treatment Facility when discharged through the facility.

O- Sample location: E - Effluent 00 Monitoring and reporting for flow, pH, iron and copper are required only when chemical. metal cleaning is performed.

"Ihe pH shall not be less than 6.0 standard units nor greater.than 9.0 sta=dard units and shall be monitored once per batch by grab samples at the effluent.

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Part I t

B. Schedule nf Compliance

1. The permittee shall comply with Final Effluent Limitations specified for discharges in accordance with the following schedule:

i Permittee shall. comply with Final Effluent Limitations by the effective

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i date of the permit.

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2. Permittee shall at all times provide the operation and maintenance necessary to operate the existing facil.ities at optimum efficiency,

3. No later than 14' calendar days following a date identified in the above -

schedule of compliance, thn permittee shall submit either a report of progress or, in the case of specific actions being required by identified dates, a written notice. of compliance or noncompliance. In the latter ,

case, the notice shall include the cause of noncompliance, any remedial '

actions-taken, and the probability of meeting the next schedule requirements.

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'k Part II Page 1 of 14 PART II .

STANDARD CONDITIONS FOR NPDES PERMITS SECTION A. GENERAL CONDITIONS

1. Duty to Comply The permittee must comply with all conditions of this permit. Any permit-noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation'and reissuance, or modification; or for denial of a permit renewal application.

2. Penalties for Violations of permit Co.nditions Any person who violates a permit condition is subject to a' civil penalty not to exceed $10,000 per. day of such violation. Any person who willfully or negligent 1'; violates a permit condition is guilty of a misdemeanor punishable by a fine not to exceed $15,000 per day of violation, or by imprisonment not to exceed six months or both.

3. Duty to Mitigate

• The permittee shall take all reasonable steps to minimize any adverse impact to navigabic waters resulting from noncompliance with any effluent limitations-specified in this permit, including accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge.

4. Permit)Jodification After notice and opportunity for a hearing pursuant to NCGS 143-215.l(b)

(3) and NCGS 143-215.1(c) respectively, this permit may be modified,' suspended,.

or revoked in whole or in part during its term for causn including, but not limited to, the following:

a. Violation of any terms or conditions of this permit; I b. Obtaining this permit by misrepresentation or failure to disclose fully all relevant facts;

c. A change in any condition that requires either a temporary or permanent reduction or elimination of the authorized discharge; or i d. Information newly acquired by the Division indicating the discharge. poses a threat to human health or welfare.

If the permittee believes that any past or planned activity would be cause for modification or revocation and reissuance, the permittee must report such information to the Permit Issuing Authority. The submittal of a new application

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Part II.

Page 2 of 14 may be required of the permittee. The filing of a request by the perm'ttee i for

-a permit modification, revocation and reissuance, or termination,_or a notification of planned changes or anticipated noncompliances, does not stay any permit condition.

5. Ioxic Pollutants Notwithstanding Part II, A-4 above, if a toxic effluent standard or prohibition (including any schedule of compliance specified in such effluent standard or prohibition) is established under Section 307(a) of the Act for a toxic pollutant which is present in the discharge, if such standard or prohibition

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is raore stringent than any limitation for such pollutant in this permit, this 'l permit shall be revised or modified in accordance with the toxic effluent standard prohibition and the permittee so notified.

The permittee shall comply with effluent standards or prohibitions established 3 under Section 307(a) of the Clean Water Act for toxic pollutants within the l time provided in the regulations that_ establish those standards or prohibitions,  !

even if the permit has not yet been modified to incorporate the requirement. L

6. Civil and Criminal Liabilily

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T.xcept as provided in permit conditions on " Bypassing" (Part 11,- B-3) and 3

" Power Failures" (Part II, B-6), nothing in this permit shall be construed  !

to relieve the permittee from any responsibilities, liabilities, or penalties i for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the permittee is' responsible for

consequent ial damages, such as fish kills, even though the responsibility for ef fect ive complinnce may be temporarily suspended.

7, Oil and Hazardous Substance Liability 4

-l Nothing in this permit shall be construed to preclude the institution of any i legal act ton or relieve the permittee from any responsibilities,: liabilities, or penalties-to which the permittee is or may be subject to under-NCGS 143-215.75 et seq. or Section 311 of the Federal Act, 33 USC'1321. Furthermore, the permittee is responsible for consequential damages, such as fish kills, l even though the responsibility for effective compliance may be temporarily  ;

suspended.

8. , Property Rights 1 The issuance of this, permit does not convey any property rights in either real  !

or personal property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations, i

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Part II '

Page 3 of 14

9. Onshore oL;0ffshore Construction This permit does not authorize or approve the construction of-any onshore or offshore physical-structures or facilities or the undertaking of any work' in any-navigable waters.

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10. Severability The provisions-of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the remainder of this permit, shall not be affected thereby' .

11. Du.t.y to Provide Information 4 The permittee shall furnish to the Permit Issuing Authority, within a reason-able time, any information which the Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit. She permittee shall also furnish to the Permit Issuing Authority upon request, copies of records required to be kept by this permit.

SECTION D. OPfERA_T_1,0N AND MAlhTENANCE OF P,0_L.LUT10N CONTR_0LS

1. . Proper Operation and Maipt.enance The permittee shall at all times maintain in good working order and operate -

as efficiently as possible all treatment or control facilities or systems installed or used by the permittee to achieve compliance with the terms and conditions of this permit.

2. Need to linit or Reduce not a Defense

• It shall not he a defense for a permittee in an enforenment action that it would have been necessary to halt or reduce the permitted _ activity in order to maintain compliance with the condition of this permit.

3. Bypassing Any diversion from or bypass of facilities is prohibited, except (1) where unavoidable to prevent loss of life or severe property damage, or (ii) where excessive storm drainage or runoff would damage any facilities necessary for compliance with.the effluent limitations and prohibitions of this permit. All permittees who have such sewer bypasses or_ overflows of this discharge shall submit, not later than six months from the date of issuance of this permit, detailed data or engineering estimates which-identify:

a. The location of ea.ch sewer system bypass or overflow;

b. The frequency, durntion and quantity of flow from each sewer system bypass or overflow.

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I part II Page 4 of 14 4

This requirement is waived where infiltration / inflow analyses are scheduled to be. performed as part of an Environmental Protection Agency facilities planning project.

The permittee shall report by telephone to either the' central office or, appropriate regional office of the Division as soon as possible,~but in no case more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or on the next working day following the occurrence or first knowledge of the occurrence of any division from or bypass of facilities.

4. Upsets

" Upset" means an exceptional incident in which there is unintentional and' temporary noncompliance with technology based permit effluent limitations-because of factors beyond the reasonable control of the. permittee. An upset -

does not include noncompliance to the extent caused by. operational error improperly designed treatment facilities, inadequate treatment facilities,.

lack of preventive maintenance, or careless or improper operation. An upsat constitutes an affirmative defense to an action brought for noncompliance with such technology based permit limitation if the requirements of 40 CFR S i 122.41(n)(3) are met. .

5. Remoted Substances Solids, sludges, filter backwash, or other pollutants removed in the course of-treatment or control of wastewaters shall be disposed of in accordance with NCGS 143-215.1 and in a manner such as-to prevent any pollutant from such materials from entering waters of the State or navigable waters'of the United States.

6. Power Failures l The permittee is. responsible for maintaining ndequate' safeguards as required by DEtt Regulation. Title 15, North Carolina Administt ative Code, Subchapter 211,

.0124 Reliability, to prevent the discharge of untreated or inadequately treated-wastes during electrical power f ailures either by means of alternate power sources, standby generators or retention of inadequately treated effluent.

SECTION C. MONITORING AND RECORDS

1. Representative SamplinR Samples collected and measurements taken, as required herein, shall be characteristic of the volume and nature of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is characteristic of the discharge over the entire period which the sample represents. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified , before the effluent joins or is diluted liy any other wastestream, body of water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit issuing Authority.

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Part II Page 5 of 14-

2. Reporting Monitoring results obtained during the previous month (s) shall be summarized' for-each month and reported on a monthly Discharge Monitoring Report (DMR) Form (DEM No. MR 1. 1.1, 2, 3) or alternative forms approved by the Director,.DEM,.

postmarked no later than the 30th day following the completed reporting period.

The first DMR is due on the last day of the month following the. issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge.- Duplicate signed copies of these, and all other I reports. required herein, shall be submitted to the following address:

Division of Environmental Management Water Quality Section ATTENTION: Central Files

• Post Office Box 27687 r Raleigh, North Carolins 27611 ,

3 Elow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to fusure the accuracy and reliability of measurements of the volume of monitored discharges. .The.

devices shall be installed, calibrated and maintained to insure that the accuracy of the measurements are consistent with.the accepted capability'of that type of device. Devices selected shall be capable of measuring flows with a maximum daviation of less then.+ 10% from the true discharge rates-throughout the range of expected discharge volumes. Once-through condenser cooling water flow which is monitored by pump logs,.or. pump hour-meterstas.

specified in Part i of this permit and based on the manufacturer's pump.

curves shall not he subject to this requirement.

l 4 Ie.st,Prncedures Test procedures for the analysis of pollutants shall -conform to the EHC

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regulations published pursuant to NCG3 143-215.63 et seq, the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section 304(g),

33 USC 1314, of the Federal Water Pollution Control Act, as Amended, and Regulation 40 CFR 136.

To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined capable of achieving minimum detection sand icporting levels below permit discharge requirements, then the most sensitive l (method with the lowest possible detection and . reporting level) approved method must he used.

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5. Penalties for Temnerina The Clean Water Act provides that any person who falsifjes, tampers with, or knowingly renders inaccurate, any monitoring device or method required to be maintained under this permit shall, upon conviction, by punished by a fine of i not more than $10,000 per violation, or by imprisonment for.not more_than six months per violation, or by both.

6. Recor_ds_ Retention All records and information resulting from the monitoring activities required' by this permit including all records of analyses performed and calibration and maintenance of instrumentation and recordings from continuous monitoring instrumentation shall be retained for a minimum of three (3) years by the permittee. This period of retention shall be extended during the course-of any unresolved litigation or if requested by the Division of Environmental Management or the Regional Administrator of the Environmental Protection Agency.

7. Fecord_ina_Results For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record the following information:

a. The exact place, date, and time of sampling;

h. The dates the analyses were performed; #

c. The person (s) who performed the analyses; and

d. The results of such analyses.

8. RIAht of Entry The permittee shall allow the Director of the Division of Environmental Management, the Regional Administrator, and/or their authorized representatives, upon the presentations of credentials:

a. To enter upon the permittee's premises where an effluent source is located or in which any records are required to be kept under the terms and conditions of this permit; and

b. At reasonable times to have access to and copy any records required to be kept under the terms and conditions of this permit; to inspect any monitoring equipment or monitoring method required in this permit; and

-to samplo any discharge of pollutants.

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SECTION D. REPORTING REQUIREMENTS 1

L 1. Channe in Discharne-All discharges authorized 'herein shall be' consistent with the terms and conditions of this permit. The' discharge of any pollutant. identified in.

L this permit more frequently than'or at a level in excess of that authorized l shall constitute a violation of the. permit. Any anticipated facility l- expansions, production increases, or process modifications which will' result.

in new, different, or increased discharges of pollutants must be reported by submission of a new NPDES-application or, if such changes will not violate l

the effluent limitations specified in this permit,.by notice to the DEM of ,

such changes. .Following such notice, the permit may be modified to specify and limit any pollutants not previously limited.

2. Anticipated Noncompliance The permittee shall give notice to the Permit' Issuing Authority of any planned change in the permitted facility or activity which may result in. noncompliance l

with parmit requirements. Any maintenance of facilities, which might l necessitate unavoidable interruption of operation and degradation of effluent!

, quality, shall be scheduled during noncritical water quality. periods and carried.

out in a manner approved by-the Permit Issuing Authority.

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3. Transfer of Owne.r_ ship or Control l This permit is not transferable. In the event of any change.in name, control or ownership of facilities from which the authorized discharge emanates or is contemplated, the permittee shall notify the prospective owner or controller :by letter of the existence of this permit and of the need to obtain a permit in the name of the prospective owner. A copy of the letter shall be forwarded to the Division of Environmental Management.

4 Additional Monitoring by_ Permittee ,

If the permittee monitors any pollutant at the location (s) designated herein more frequently than required by this permit, using approved analytical methods as specified above, the results of such monitoring shall be included in the calculation and reporting of the. values is required in the DMR. Such increased frequency shall also be indicated. The_DEM may require more frequent-monitoring i or the monitoring of other pollutants not required in this permit by written-l notification.

5. Averaging _of Measurements Calculations for limitations which require averaging of measurements shall' utilize an arithmetic mean unless otherwise specified by the Permit Issuing Authority in the permit.

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Part II Page 8 of'14

6. Noncompliance Notification The permittee shall report by telephone to either the central office or the i appropriate regional office of the Division as soon as possiblei but in '

no case more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or on the next working day following the occurrence or first knowledge of the occurrence of any of the following:

a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in, t quantity or characteristic, such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. -,

h. Any process' unit failure, due to known or unknown reasons, that render the f acility incapable of adoquate wastewater treatment such as mechanical or electrical failures of pumps, serators,' compressors, etc.

c. Any failure of a pumping station, sewer line, or treatment factifty resulting in a by pass directly to receiving waters without treatment of all or any portion of the influent t; such station or facility,

d. Any timo that self-monitoring information indicates that the facility has gone out of compliance with its NPDES permit litnitations.

Persons reporting such occurrences by telephone shall also file a written report in letter form within 15 days following first knowledge of the occurren<e.

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! 7. Changes in Discharges.of_T_ox_ic Substaniesi The permittee shall notify the Parmit issuing Authority as soon as. it knows or has reason to believe:

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n. That any activity has occuri ed or will occur which would result in the discharge, on a routine or frequent basis, of any toxic-substance (s) (listed at 40 CFR S 122, Appendix D, Table 11 and III) which is not limited-in the ermit, if that discharge will exceed the highest of the following p' noti fication levels".

(1) One hundred micrograms per liter (100 ug/1);

(2) Two hundred micrograms per liter (200 ug/1) for acrolein and acrylonitrile; five hundred micrograms per liter (500 ug/1) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/1) for antimony; or (3) Five (5) times the maximum concentration value reported for that pollutant (s) in the permit application.

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Part II Page 9 of 14

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b. That any activity has occurred or will occur which would result in any discharge, on a non-routine or infrequent basis, of a toxic. pollutant (listed at 40 CFR S 122, Appendix D. Table II and III) which is not limited in the permit, if that discharge will exceed the highest of the-following " notification levels":

(1) Five hundred micrograms per. liter (500-ug/1);

(2) One milligram per liter (1 mg/1) for antimony; or (3) Ten-(10) times the maximum concentration value reported for that pollutant (s) In the permit application,

8. Expiration sf_ Permit Permittee is not authorized to discharge after the expiration date. In order to receive authorization to discharge beyond the expiration date, the permittee shall submit such information, forms, and fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date.

Any discharge without a permit after the expiration will subject the permittee i to enforcement procedures as provided in NCGS 143-215',6 and 33 USC 1251 et seq -

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9. Signatory Requirements i

All appifcations, reports, or information submitted to the Permit Issuing Authority shall be signed and certified.

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a. All permit applications shall be signed as follows:

(1) For a corporation: by a responsible corporate officer. For the I purpose of this Section, a responsible corporate officer means:

(n) a president, secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or. decision making -

functions for the corporatien, or (b) the manager of one or more manufacturing production or operating facilities employing more than 250 persons or having gross annual sales or expenditures exceeding 25 million (in second quarter 1980 dollars), if authority

( to sign documents has been assigned or delegated to the manager in l accordance with corporate procedures.

(2) For a partnership or sole proprietorship: by a general partner or r

the proprietor, respectively; or (3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official.

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Part II Page 10 of 14

b. All reports required by the permit and other.information requested by the Permit Issuing Authority shall be signed by a person described above.or by a duly authorized. representative of'that person. A person is a' duly authorized representative only if:

(1) The authorization is made in writing by a person' described; above; (2) The authorization specified either an individual or a positionI having responsibility for the overall operation- of the regulated facility or activity, such'as the position of plant manager, operator of a well-or ,

well field, superjntendent, a position of equivalent responsibility, or an individual or position having overall responsibility for environ-mental matters for the company. (A duly. authorized representative may thus be either a named individual or any individual occupying a named position.); and (3) The written authorization is submitted to the Permit Issuing Authority,

c. Certification. Any person signing a document under paragraphs a. or b. of '

this section shall making the following certification:

"I certify, under ' penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a' system designed to assure that qualified personnel properly gaths.r and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for: gathering the information, the inic,rmation submitted is, to the best of my knowledge and-l believe, true, accurate, and complete. I am aware that there are-significant penalties for submitting-falso information, including 1the i

possibility of finns and imprisonment for knowing violations."

l j 10 Availab1113ty of_Regortss Except~for dawa determined to be confidential under NCGS 143-215.3(a)' (2)-_or Section 308 of the Federal Act, 33 USC 1318, all reports prepared.in accordance with the terms shall be available for public inspection at the offices of.the Division of Environmental Management. As required by the Act', effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result'in the imposition of criminal penalties as provided for in NCGS 143-215.1(b) (2) or.in Section 309 of the Federal Act,

11. Ee_nalties for Falsific_ation of Reports The Clean Waier Act provides that any person who knowingly makes any false statement, representation, or' certification in any record or other document-submitted or required to be maintained under this permit, including monitoring, reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment 4

for not more thnn six months per violation, or by both.

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SECTION E. DEFINITION .i l

1. Permit Issuing Authority  !

The Director of the Division of Environmental Management..

2. DEM or Division i Means the Division of Environmental Management, Department of Natural Resources and Community Development. 3. EMCi i Used herein means the North Carolina: Environmental Management Commission.

3. EMC Used herein means the North Caroline Environmental Management Commission.

4. Act or "the Act" The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251, et. seq.

5. Mass / Day Measurements

a. The " monthly average discharge: is defined as the total mass of all daily dischargos sampled and/or mea =ured during a calendar month on which daily discharges are sample and measured ~, divided by the number of daily discharges samples and/or measured during such month. It is therefore, an arithmetic mean found by adding the weights =of the .

pollutent found each day of the' month and then dividing this sum by the number of days the tests were reported. The limitation is identified as " Monthly Average" in Part I of the permit.

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b. The " weekly average discharge" is defined as the total mass of; all daily discharges sampled and/or measured during the calendar week (Sunday-Saturday) on.which daily dis' charges are sampled and measured',

divided by the number of daily discharges samples and/o. measured during such week. It is, therefore, an arithmetic mean found by t adding the weights of pollutants found each day of the week and then dividing this sum by the number of days.the tests were reported. This limitation is identified as " Weekly' Average" in Part I of the permit,

c. The " maximum daily discharge" is the total mass (waight) of a pollutant discharged during a calendar day. If only one sample is taken during any calendar day the weight of pollutant calculated from it is the " maximum daily discharge." This limitation is identified as

" Daily Maximum." in Part I of the permit.

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d. The " average annual discharge" is defined as the total' mass of all daily-discharges sample and/or measured during the calendar year on which daily.

discharges are sampled and measured, divided by the number of ; daily +

discharges sampled and/or measured during such year. . It.is, therefore, an arithmetic mean found by adding the weights of_ pollutants found.each day of-the year and then dividing this sum . by the number of' days' the tests wera-reported. This limitation is defined es " Annual Average" in Part I of the permit.

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6. Concentration Hessurement

a. The " average monthly concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all daily discharges samples and/or measured-during a calendar month on which' daily discharges .

are sampled and measured, divided by the number of daily discharges sampled 1 and/or measured during such month-(arithmetic mean of the daily concentration values). The daily concentration value is equal to the l concentration of a composite sample or in the case of grab samples . is the l arithmetic mean (weighted by-flow value) of all the samples collected I

during that calendar day. The average monthly count for' fecal coliform I

bacteria is the geometric mean of the counts for samples collected during a

calendar month. This limitation is identified 1as " Monthly Average" l under "Other Limits" in

Part 1 of the permit.

b. The " average weekly concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all daily discharges sampled and/or l measured during a calendar week (Sunday / Saturday) on which daily discharges

! are sampled and measured divided by the number of daily discharges sampled-and/or measured during such week (arithmetic mean of the daily concentration values). The daily concentration value is equal to the concentration of a composite sample or in the case of.grah samples is the -

I arithmetic mean (weighted by flow value) of all the samples collected'during that calender day. The average weekly count for focal coliform. bacteria is the geometric mean of the counts-for samples collected during a calendar-week. This limitation is identified as " Weekly Average" under "Other-i Limits" in Part I of the permit.

c. The " maximum daily concentration" is the concentration ~of a pollutant.

discharge during a calendar day. If only one sample is taken during any calendar day the concentration of pollutant calculated from it is the "Haximum Daily Concentration". It is identified as " Daily Maximum" under "Other T.imits ' in Part i of the permit.

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d. The " average annual concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all daily discharges sampled and/or measured during a calendar year on which daily discharges are sampled and measured divided by the number of daily l discharges sampled and/or measured  !

during such year (arithmetic mean of the daily concentration values). The daily concentration value is equal to the concentration of a composite sample or in the case of grab samples is the arithmetic mean-(weighted by' flow value) of all the samples collected during-that' calendar day. The average yearly count for fecal coliform bacteria is the geometric mean

of the counts for samples collected during a calendar year. This limitation is' identified as " Annual Average";under "Other Limits",in Part 1 of the permit,

e. The " daily minimum-concentration" (for dissolved oxygen only) is the minimum allowable amount of dissolved oxygen ~ required to be available in the effluent prior to discharge. It is identified.as " Daily Minimum"'under "Other 1.imits" in Part 111 of the permit.

7. Other Measurements

a. Flow. (MGD): The flow limit expressed in this permit is the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> )

average flow, averaged monthly. It is determined as the arithmetic mean- .i l of the total daily flows recorded during the calendar month. ,

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b. An " instantaneous flow measurement" is a measure of flow taken at the. time j 1 of sampling, when both the sample and flow will be representative of.the l l total discharge, i I

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l Types of Samply

a. Composite Sample: These samples consist of grab samples co11ceted at equal intervals and combined proportional to flow, a sample continuously collected proportionally to flow, or equal volumes taken at varying time intervals. If a composite sample is obtained from grab samples, the j fol. lowing requirements apply. The intervals between influent grab samples shall be no greater than hourly. Intervals between effluent grab sampics shall be no greater than hourly except where the detention time '

of the wastewater in the facility is greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, in which l case, the interval between grab samples shall be no greater in number.of hours than the detention time in number of days; provided, however, in' no case may the time between effluent grab samples be greater than six Li hours nor the number of grab samples less than four during any discharge  !

period of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or less.

b. Grab Sample: Grab samples are individual samples collected over a ,

period of time not exceeding 15 minutes; the grab sample can be taken ]

manually.

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9. . Calculation of Means

a. Arithmetic Mean: The arithmetic mean of any set of values is'the-summation 1 i

! of the individual values divided by the number of individual values.

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a Geometric Mean: The geometric mean of any set of values is the Nth; root of b.

the product of the individual values where N is equal to the.numberfof individual values. The geometric mean is equivalent to the antilog of' the arithmetic mean of the' logarithms of the individut' " ~.es- . -For-purposes of calculating the geometric mean, values of _..v (0) shall be considered to b3 one (1). ,

c. Weighted by Flow Value: Weighted by' flow value means the summation of.each [

concentration times.Its respective flow divided by the summation of.the respective flows.

10. Calendar Day A calendar day is defined as the period from midnight of c e day until midnight of the next day. Ilowever, for purposes of.this permit, any consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. -i

11. Hazardous Substance A hazardous substance means any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean Water Act,

12. Toxic Pollutant A toxic pollutant is any pollutant listed as toxic under Section 307(a)(1) of '

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Revised 6/89

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PART III OPHER REQUIREMENTS A. Previous Permfis All previous State water quality permits issued to this facility, whether for construction or operation or dischargo, are hereby revoked by issuance of this permit. The conditions, requirements, terms, and provisions of this permit '

authorizing discharge under the National Pollutant Discharge Elimination System govern discharges from this facility.

B. Conytruction No construction of unstawater treatment facilities or additions thereto shall be begun until final Piens and Epecifications have been submitted to the Division of Environmental Managemer.t and written approval .and Authorization to Construct has baen issued. -

C. 9erti Qe,d,QpeLatqr Pursuant to Chapter 90A 44 of North Carolina General Statutes, the permittee shall employ a certified wastewater treatment plant operator in responsible-

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charge f0RC) of the wastewater treatment facilities. Such operator must hold a certification of the grado equivalent to or greater. than the ,

classification assigned to the wastewater treatment facilities. The perm!ttee'shall notify the Division's Oparator Training and Certification  ;

Uaft within five days of any change in the ORC status.

D. Grqundwater_ Mon 110 ting The permittee shall, upon written notice from *.he Director of the Division of Environmental Management, conduct groundwater monitoring as may be required to determine the compliance of this NPDES permitted facility with the current

' groundwater standards.

E. bimitations_Reppener .

This permit shall be modified or alternatively, revoked and reissued, to comply

[ with any applicable effluent guideline or water quality standard issued or l approved under Sections 302(b) (2) (c), and (d), 304(b) (2), and'307(a) (2) of the Clean Water Act, if the effluent guideline or water quality standard so issued or approved:

1. contains dif ferent conditions or is otherwise more st ringent than any l effluent limitation in the permit; or i

2. controls any pollutant not limited in the permit.

l The permit as modified or reissued under this paragraph shall also contain any' other requiremants in tha Act than applicable.

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Part III Permit No. NC0024392 F. Toxicity Reopener This permit shall be modified, or revoked and reissued to incorporate toxicity limitations and monitoring requirements in the event toxicity testing or other studies conducted on the effluent or receiving stream indicate that detrimental effects may be expected in the receiving stream as a result of this discharge.

G.

In the event that waste streams from various sources are combined for treatment or discharge, the quantity of each pollutant or pollutant property attributable to each controlled waste source shall not exceed the specified limitation for that waste source.

II . There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for transformer fluid.

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The permittee shall not use any blocides except these approved in conjunction with the permit application. The permittee shall notify the Director-in writing not later than ninety (90) days prior to instituting use of any additional biocide used in cooling systems which may be toxic to aquatic life other than those previov<ly reported to the Division of Environmental Management. Such notification shall include completion of Blocide Worksheet Form 101 and a map locating the discharge point and receiving stream.

J. Continued intake screen backwash discharge Js permitted without limitations or monitoring requirements, llowever , the discharge of oil and grease is prohibited from this discharge.

K. Nothing contained in this permit shall be construed as a waiver by the permittee of any right to a hearing it may have pursuant to State or Federal I,aws or regulations.

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The term " low volume waste sources" means the waste is taken collectively as if from one source except those for which specific limitations are otherwise established in this part, low volume wastes sources include but are not limited to: wastewaters from wet scrubber air pollution control systems, ion exchange water treatment system, water treatment evaporator blowdown, laboratory and sampling etreams, boiler blowdown, floor drains, cooling tower.

basin cleaning wastes, and recirculating house service water systems.' Sanitary and air conditioning wastes are not included.

M. The term " chemical metal cleaning waste" means any wastewater resulting from the cleaning of any metal process equipment with chemical compounds including, but not limited to, boiler tube c1 caning.

N. It has been determined from information submitted that the plans and procedures in place at McGuire Nuclear Station are equivalent to that.of a BMP.

O. Yard drains may be discharged without limitations or monitoring requirements.

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' demon:trati;n and has concitd:d th;t tha cxisting tharm31-linitction3 cra sufficient to protect the aquatic environment of Lake Norman.  ;

Q. Mixing Zone A mixing zone has been defined containing an area of no.more'that 3500 acres .  ;

.and lying upstream of the dam and south of a line originating on the west bank I of NC Coordinates E-1, 416,900 and N-633,600 and extending south 70 -00 east  ;

intersecting the point of land on the eastern shore. Water quality stream i standards for temperature shall be met outside the mixing zone.

'R. Chronic Toxicity Testing Requirement  :

The effluent discharge shall at no time exhibit chronic toxicity in any two t consecutive toxicity tests, using test procedures outlined in:

1 1). The North Carolina Ceriodaphnia chronic effluent bionssay. procedure (North Carolina Chronic Bionssay Procedure - Revised.* April.1989) or subsequent version. .

The effluent concentration at which thero may be no observable inhibition of reproduction or significant mortality is 12% (defined as treatment two in the North Carolina procedure document). The permit holder shall perform quarterly monitoring using this procedure to establish compliance with the permit.

condition. The first test will be performed after thirty days from issuance of '

this permit during the months of January, April, July, and October. Effluent  !

sampling for this testing shall be performed at the NPDES permitted final  !

effluent discharge below all treatment processes.

• All toxicity testing results required as part of this permit condition will be .

L entered on the Ef fluent Dist.harge Monitoring Form (MR-1) for the month in which

( it was performed, using the parameter code TGP3B, Additionally, DEN Form AT-1 (original) is to be sent to the following address:

l Attention: Technical Services Branch r North Carolina Division of Environmental Management l P,0. Box 27687 '

Raleigh, N C. 27611 Test data shall be complete and accurate and include all. supporting cheminal/ physical measurements performed in associntion with the toxicity tests, as well as all dose / response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream, b

Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a j single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above.

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Sh:cid cny L:st data from this monit: ring requirement cr tests p;rf;rmed by tha North Car: liza Division cf Envir:nmentcl M: nag: ment indicato potcntic1 imp: cts to the receiving stream, this permit may be reopened and modified to include  ;

alternate monitoring requirements or limits.

" Failure to achieve test conditions as specified in the cited document, such as '

minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting (within 30 days of initial monitoring event). Failure to submit suitable test results will constitute non-compliance with monitoring requirements, but will not subject the permittee to civil penalty if the permittee has demonstrated a diligent attempt to conduct a suitable retest and has engaged the services of a laboratory with valid certification under North Carolina's laboratory certification program.

S. Releases of radioactive materials shall be monitored and conducted in accordance with all conditions and limitations required by NRC and as specified in the Final Safety Analysis Report, Technical Specifications and Environmental Statement for the McGuire Nuclear Station.

T. The Lake Norman aquatic environment maintenance monitoring program approved by the Division of Environmental Management shall be continued. The monitoring results shall be submitted annually.

U. Discharge of any product registered under the Federal Insecticide, Fungicide, and Rodenticide Act to any waste stream which may ultimately be released to lakes, rivers, streams or other waters of the United States is prohibited unless specifically authorized elsewhere in this permit. This requirement is not applicable to products used for lawn and agricultural purposes. Discharge of chlorine from the use of chlorine gas, sodium hypochlorite, or other similar chlorination compounds for disinfection in plant potable and service water systems l and in sewage treatment is authorized.

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V. The permittee is hereby authorized to discharge as follows:

n. The Cowans Ford Dam Underdrain discharge to the Catawba River which includes bearing lubrication and gland seal water, and possibly sitt from the cyclone separators, and

b. Fire protection water (approved blocide) to Lake Norman (Catawba River).

l W. Acute Toxicity Testing Requirement The permittee shall conduct acute toxicity tests on a guarterly basis using protocols defined in the North Carolina procedure Document entitled " pass / Fail

! Methodology For Determining Acute Toxicity In A Single Effluent Concentration". The monitoring shall be performed as a Daphnia pulex 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> static test, using effluent collected as a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite. The effluent concentration at which there may be at no time significant acute mortality in any two consecutive toxicity tests is 90% (defined as treatment two in the North Carolina procedure document). Effluent samples for self-monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The first test will be performed pfter thirty days from issuance of this permit during the' months of February, Hay, August, and November.

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• All t:xicity testing reculta rcquired c2 p:rt of thic perait condition till be ent:r:d on the Effluent Dicch:rg3 Monitcring F rm (MR-1) f:r th] month in thich it was performed, using the parameter code TGE3D. Additionally, DEM Form AT-2 (original) is to be sent to the following address:

Environmental Sciences Branch North Carolina Division of Environmental Management p0 Box 27687 Raleigh, North Carolina 27611-7687 Test data shall be complete and accurate and include all supporting chemical / physical measurements performed in association with the toxicity tests, as well as all dose / response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.

Should any single quarterly monitoring-indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a '

single test in passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above.

Should any test data from either these monitoring requirement or tests performed by the North Carolina Division of Environmental Management indicate potential impacts to the receiving stream, this permit may be re-opened and modified to include alternate monitoring requirements or limits.

" Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting (within 30 days of initial monitoring event), Failure to submit suitable test results will constitute non-compliance with monitoring requirements, but will not subject the permittee to civil penalty if the permittee hns demonstrated a diligent attempt to conduct a suitable retest and has engaged the services of a laboratory with valid cert ification under North Carolina's laboratory certification program.

X. Acute Toxicity Testing Requirement The permittee shall conduct acute toxicity tests on a guarterly basis using protocols defined as definitive in epa Document 600/4-85/013 entitled "The Acute Toxicity of Effluents to Freshwater and Marino Organisms". The monitoring shall be performed as a Daphnia pulex or .Ceriodaphnia 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> static test, using effluent collected as a grab sample. The LC50 of this effluent using the previously stated methodology may at no time in any two-consecutive toxicity tests be less than 80%. Effluent samples for self-monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The first test will be performed after thirty days from issuance of this permit during the months of February, May.

August and November.

The parameter code for this test if using Daphnia pulex is TAA3D. The-parameter code for this test if using Ceriodaphnia is TAA3B. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally, DEM Form AT-1 (original) is to be sent to the following address:

Technical Services Branch North Carolina Division of Environmental Management PO Box 27687 Raleigh, North Carolina 27611-7687 1

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e-s : s Test data shall be comp 10to and accurato and includ3 all supporting chemical / physical measurements performed in association with the toxicity tests, as well as all dose / response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorino is employed for disinfection of the waste stream. i Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a '

i single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above.  ;

Should ant test data from either this monitoring requirement or tests performed by the Noeth Carolina Division of Environmental Management indicate potential impacts t3 the receiving stream, this permit may be reopened and modified to l

include alternate monitoring requirements or limits, j

" Failure to schieve test conditions as specified in the cited document, such as i

minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting (within 30 days of initial monitoring event). Failure to submit suitable test results will constitute non-compliance with monitoring requirements, but will not subject the permittee to civil penalty if the permittee has demonstrated a diligent attempt to conduct a suitable retest and has engaged the services of a -

laboratory with valid certification under North Carolina's laboratory .l certification program.  !

t Y. Duke Power must perform the following as part of the 316(a) variance:

1. Duke monitoring shall include a sampling program whose intent is to determine the abundance and distribution over the critical summer period, both in time and space, of fish species in the mixing zone. The use of hydroacoustical sampling equipment is suitable for these purposes and is to '

be performed in conjunction with vertical temperature and dissolved oxygen profiles. In addition, these dates will be analyzed, where appropriate (using other lake specific information collected either by Duke Power Company or other agencies) with regard to striped bass usage of the mixing zone. 1

2. Duke shall remodel and assess the impact of 100% load factor during the months of June-August and 90% for the remainder of the year. '

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3. Duke shall address maximum discharge tempntatures from McGuire which will occur each month when the units are operating at maximum output. This discussion shall entail the possible effect on swimmers / fallen skiers in the thermal plume area during the summer months.

Z. The permittee shall conduct a test for priority pollutants annually at the effluent from the treatment plant. The discharge shall be evaluated as follows:

1) A pollutant analysis of the effluent must be completed annually using EPA approved methods for the following analytic fractions: (a) purgeables (i.e., volatile organic compounds); (b) acid extractables; (c) base / neutral extractables; (d) organochlorine pesticides and PCB's (e) herbicides; and (f) metals and other inorganics. The Annual Pollutant Analysis (APA) Honitoring Requirement Reporting Form A, to l be provided to all discharges affected by this monitoring requiremant, describes the sampling and analysis requirements and lists chemicals to be included in the pollutant analysis. This monitoring requirement is to be referred to as the " Annual Pollutant Analysis" (APA).

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PART IV ANNUAL ADMINISTERING AND COMPLIANCE FEE REQUIREMENTS i

A. The permittee must pay the annual administering and compliance fee .sithin 30 *

(thirty) days after being billed by the Division. Failure to pay the fee in a timely manner in accordance with 15 NCAC 2H .0105(b)(4) may cause this Division i to initiate action to revoke the permit.

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State of North Carolina Department of Natural Resources and Community Development Division of Enviro ,mentel Management 512 North Salisbury Sercet

• Raleigh, North Carolina 27611 James C. Martin, Covernor R. Paul Wilms William W. Cobey, Jr., Secretary February n , 1989 Di"C' '

MEHORANDUM To: HPDES Permit Hold rs From: Steve Tedder Water Quality Secti Chief

SUBJECT:

NPDES Effluent Limitations The Division of Environmental Management has recently received a number of questions about limitations in NPDES permits. Many permit holders do not understand how or why their permit limitations can change. For your information, I have enclosed a brief explanation which should help explain some of the factors af fecting permit limitations. Also included are some reasons why these limitations may changt.

If you have any questions on this matter, please do not hesitate to contact Mr.

Arthur Mouberry of the Permits staf f or Mr. Trever Clements of the Modeling staf f at 919/733-5083.

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• jpjg g}qqQ ) g,ll ?gg,k[ h hqglgg pg I)lh 7},' Qf An Equal Opro unity Abmanve Action Emplover

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i TACTORS ATpECTING WASTE LOAD ALLOCATIONS Over the past decade North Carolina has experienced rapid population growth and r ipdustrial development. With this growth has come more jobs and better housing opportunities. This prosperity has also brought an increasing demand on our State water's as locations for vastewater discharges.

These waters are a resource with only limited capacity to accept vastewater. Additional discharges, in many cases, result in a requirement for upgraded treatment by the existing dischargers. This is an unfortunate side effect of our growth, but it is one that '

you must consider nov, and throughout the life of your project.

Beginning on page three of your NPDES permit are the effluent limitations that you are receired to neet. These 11 citations were derived to protect the vater quality in your receiving streat under existing. conditions. The effluent limits contained in your permit are usually effective throughout the term of the perrit.

Novever, these litits can change during the term of the permit (usually five years) '

if: (1) a vettr quality concert. is documented in the receiving stres: or, (2) the f e6eral guidelines change for f acilities with limits based on effluent guidelines. '

Effluent lir.its in the percit are also subject to change at the time of r eissuance of the NPDES Pe rr.i t . This change can result from several factors, for example: (1) more discharges in your ittediate area, (2) an increase in total permitted flov to your streat,. (3) a change in the condition of your strean, (4) an increase in our understanding of your receiving stream. If your limits ,

do change, you vill be itsponsible for taking the action necessary to upgrade your treatment facility to meet your nev effluent limits. As the Division becomes avar e of 6 change in the 11 tit ation of existing dischargers, ve vill provide you with as t

ruch notice er is possit'e so that you car. begin caking plans to ceet those new 1

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. 's6 State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Mana gement

$12 Nonh Salisbury Street

• Raleigh, Norti Carolina 27611 James G. Manin, Governor George T. Everen, Ph. D.

William W. Cobey, Jr., Secretary Director February 6,1990 Mr. Tom Griffin Duke Power Company PO Box 33189 Charlotte, NC 28242

Subject:

NPDES Permit Modification NPDES Permit No. NC0024392 Duke Power McGuire Mecklenburg County

Dear Mr. Griffin:

On January 19,1990 the Division of Environmental Management issued NPDES Permit l No. NC0024392 to Duke Power Company. A review of the permit file has indicated that a page was inadvenently omitted from the pemut. Attached is the missing page which should be insened I into the subject permit.

All other terms and conditions contained in the original permit remain unchanged and in full effect. This permit modification is issued pursuant to the requirements of Nonh Carolina General -

Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.

! Environmental Protection Agency. This permit modification becomes effective immediately.

I If any pans, measurement frequencies, or sampling requiremerts contained in this perrtit modification are unacceptable to you, you have the right to an adjudicatory hearing

. request within thirty (30) days following receipt of this letter. This request the fonn ofmust be a written petition, confonning to Chapter 150B of the North Carolina General Statutes, and filed '

with the Office of Administrative Hearings, Post Office Drawer 11666, Raleigh, North Carolina 27604. Unless such demand is made, this decision shall be final and binding, Polhaim Prenatim Pays P.O. Box 27687, Raleish. Nonh Carolina 27611 7687 Telephone 919 733 7015 An Equal Oppanunity Affrmative Action Emplo3w

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If yes have any questions conceming this permit modification, please contact Mr. Dale Overcash at (919) 733 5083. ,

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Mr. Jim Patrick, EPA  :

cc:

Mooresville Regional Omce +

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• 2) Othor significt.nt levels of synth3 tic org:nic choalcals cust.b3

= 0 id::ntified end opproxicatoly quantified. Fct the purpose cf ispicoonting this requirement, the lart:st 10 GC/MS peaks in occh organic chemical analytic fraction (or fewer than 10, if less than 10 unidentified peaks) occur for chemicals other than those'specified on the APA Monitoring Requirement Reporting Form A should be identified and approximately quantified as stated in the APA Reporting Form A instructions. This part (item 2) of the APA monitoring requirement is to be referred to as the "10 significant peaks rule".

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