ML20065T282

Mod to NPDES Permit NC0024392,issued to Duke Power Co

ML20065T282
Person / Time
Site:	Mcguire, McGuire
Issue date:	05/07/1990
From:	Everett G NORTH CAROLINA, STATE OF
To:
Shared Package
ML20065T276	List: ML20065T275 ML20065T282
References
NC0024392-01, NC24392-1, NUDOCS 9012280023
Download: ML20065T282 (32)

Text

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Permit No. NC0024392 l

STATE OF NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT DIVISION OF ENVIRONMENTAL MANAGEMENT PERMIT 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 -

LEnvironmental Management Commission, and the Federal Water Pollution Control Act, as

. amended, Duke Power Company is'hereby. authorized to discharge wastewater from a facility located at McGuire Nuclear Station off NC Highway 73 northwest of Charlotte Mecklenburg County to-receiving waters designated as Catawba River in the Catawba River' Basin in accordance .with . effluent limitations, monitoring- requirements, and other conditions set forth in Parts I, II, and III hereof.

This' permit shall become effective May 7,~1990 This permit and - the . authorization to discharge shall expiro at midnight on January 31, 1995 1

Signed this day 7th day o May, 1990 t

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George T. EvereYt s , @irecor Division of Envirimthe Management By Authority of the En ronmental Management Commission hbk kDO F P

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4-Permit No NC0024392 SUPPIIMENT TV PERMIT COVER SHEET

Duke Power Company is hereby authorized to:

1. Continue to operate wastewater treatment facilities necessary to comply

'- with final effluent 1.im it a t ion s contained in this permit located at the McGuire Nuclear Station (See Part !!! of this Permit), and

2. Continue to discharge condenser cooling water, convent.ional low pressure service water, nuclear service water, and turbine building sumps (outf all 001) at the location specified on the attached map into Lake Norman which 4.

is classified Class "WS III" and "B" waters in the Catawba River Basin, and

3. Continue to discharge steam generator blowdown, condensate demineralizer backwash, waste treatment system backwash, domineralizer backwash, building drains, metal cleaning wastes, turbine building sumps, and landfill leachate after treatment in the wastewater treatment-system consisting of an initial holding pond, two settling ponds, a final holding pond, and effluent pH adjustment consisting-of automated.C02 addition (outfall 002) at the location specified on the attached map-into the Catawba River which is classified Class "WS-III" waters in'the Catawba River Basin, and

4. Continue to discharge domestic waste, vehicle maintenance washdown, construction and. maintenance building and shop drains, and Quality Assurance and medical facility photographic wastes from the sanitary wastewater treatment plant consisting of a multicellular aerated-facultative lagoon, a chlorine contact chamber, and a parshall fiume (outfall 003) via the Wastewater Collection Basin

-(outfall 005) at the location specified on the attached map into teh Catawba' River which is classified Class'"WS-III" waters in the Catawba River Basin, and 5.. Continue to discharge low level liquid radwaste with occasional

- oxidation treatment from the radwaste system consisting of -filters, evaporators, and domineralizers (outfall 004) via outfall 001 at the

- location specified on the attached map into Lake Norman which is classified Class "WS-III" and Class "B" waters in the Catatba River Basin, and

6. Continue to discharge effluent from the sanitary waste treatment system, overflow tros the standby nuclear service water pond, a laboratory-sink, and fn'or drain, building drains,=and condenser cooling

- water system ucwatering 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). EFFLUENT TJMITATI(FS AND MONI'II) RING 2EQtJIREMENTS Final NPDES No. N00024392 During tha period beginning on the effectiva dato of the permit and lasting until expiration, the Permittee 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 Monitoring Requirements Lbs/ day _Other Units (Specify) Measurement Sample

• Sample .

Monthly Avg. Daily Max. Monthly Avg. Daily Max. Frequency Type location Intake Flow - m /3day (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 (eg/1)*** 0.20 mg/l** Weekly Multiple Grabs **

Tine of Chlorine Addition ***** '

Hydrazine 0.06 mg/l **** Calculations Acute Toxicity = " Quarterly Composite Simultaneous chlorination of units is permitted. I Discharge of any product registered under the Federal Insecticide, Fungicide, and Rodenticide Act is prohibited unless specifically authorized elsewhere in this Permit.

l 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 ence every 15 minutes thereafter until the TRC is no longer detectable. " Daily maximum" as it applies to TRC means the 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. Totcl residual chlorine may i not be discharged from any single generating unit for more than two hours per day unless the discharger demonstrates to the State that discherge for more than two hours is required for macroinvertebrate control.

• • • • The hydrazine limit shall be caJculated once on any day on which a discharge of hydrazine occurs from the Radwaste System and turbine building sunps (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.

• • • • • The permittee shall maintain a log on file at the plant of any chlorination events within each unit. The log s

chall contain a listing of each system that is chlorinated, the volume (flow in GPM) of the system, the total mitiutes for the chlorination event, and the beginning and ending time for each chlorination event. The log shall be kept on file for review by DEM representatives and copies must be submitted to the DEM upon request t 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  !

coaducting sampling at the effluent.

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Acute Toxicity (Daphnid 24 hr.) No Significant Mortality at 90*.; February, May, August and November; See Par.t_1LL,_ Condition V.

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a NPDES No. NC0024392 A. (2). EFFIDENT LIMITATIONS AND MONITORING REQUIREMFNIS Final During the period beginning on the effective date and lasting until expiration the Permittee is author Such zed to dist-hnrge fross outfall(s) serial number (s)D02 - Conventional Wastewater Treatment Facility.

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

Discharge Limitations Monitoring Requirements Effluent Characteristics Other Units (Specify) Measurement Sample

• Sample Ibs/ day Daily Max. Monthly Avg. Daily Max. Frequency Type focation Monthly Avg.

Daily Instantaneous E Flow 20.0 mg/l Monthly Grab E 15.0 mg/l 011 & Grease Monthly Grab E NH3 as N 100.0 mg/l Monthly Grab E 30.0 mg/l Total Suspended Solids Monthly Grab E Total Residual Chlorine *** Monthly Grab E pH 4.4 mg/l Weekly Grab E Hydrazine Quarterly Grab E Total Phosphorus Quarterly Grab E Total Nitrogen Monthly Grab E MBAS Monthly Grab E Sulfate Grab E Leed**** Quarterly Grab E Acute Toxicity ** Annually E Pollutant Analysis *****

Sample locations: E - Effluent

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

• • Acute Toxicity (Daphid 48 hr) LC50 79%; February, May, August and November; See Part III, Condition X.

• • • Total residual chlorine shall be monitored once per batch within 24 heurs 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 PEM.

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.

• • • • • - e Part_111 Condi. tion.Z

A. (3). EFFIEDir LIMITATIONS AND MONI'IURING 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) 003 Domestic Wastewater Treatment Facility. - Such discharges shall be limited and monitored by the Permittee as specified below:

Effluent Characteristics Discharme Limitations' Monitoring Requiremments Lbs/ day- Other Units (Specify) Measurement Sample

• Sample ~

Monthly Ava. Daily Max. Monthly Avg. Daily Max. Frequency Type Iocation Flow Veekly Instantaneous E BOD,5 Day', 20 C 30.0 mg/l 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 / mon t h Grab E Total Residual Chlorine Weekly Grab E Oil and Grease 30.0 mg/l 60.0 mg/l 2/ month Grab E MBAS Monthly Grab E

• Sample locationss E.- Effluent The pH shall not be less than n/a standard units nor greater than n/a standard units and shall be maattored monthly at the effluent by grab sample.

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A. (4). EFF11JENT LIMITATIONS AND' MONITURING REQUIREMENTS Final NPDES No. NC0024392 During the period beginning on the effective date of the permit and lasting until expiration the- i Permittee is authorised to discharge from outfall(s) serial number (s) 004 Redwaste Processing System **

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

Eff1:ent Characteristics Discharge Limitations Monitoring Requira===ts i

IAs/ day i other Units (Specify)- Measuremen t Sample

• Sample i Monthly Avg. Daily Max. Monthly Avg. Daily Max. Frequency Type Iecation Flow Weekly TSS Instantaneous Effluent 30.0 mg/l 100.0 mg/l Quarterly Grab

011 and Grease Effluent 15.0 mg/l 20.0 mg/l Quarterly Grab Hydrazine Effluent

• • • Grab Effluent

• Effluent - Monitoring will be reasired after radwaste treatment but prior to any dilution with cooling water.

In the event the turbine building sucy- are discharged to Lake Norman and are not treated in the radwaste processing system, the above discharge limitations . all also apply to the turbine building sump discharge. Each <lischarge from the turbine building sumps shall he monitored for flow, TSS, oil and grease, and hydrazine, if applicable, as specified ebove by grab samples.

j *** Each bitch that contains hydrazine that is collected in the Radwaste System or turbine building sumps shall be monitored.

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A. (5). EFFIDEKr LIMITATIONS AND MONITORING 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 - tm Lbe/ day Other t! nits (Specify) Measurement

. Sample

• Sample Monthly Avg. Daily Max. Monthly Aym. Daily Max. Frequency Type Incation 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 Grab 2/ month 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 cs 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.

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

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

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l A. (6). EFFIDENT LIMITATIONS AND MONITURING REQUIREMEffrS 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 Vastes.

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

f Effluent Characteristics Discharge Limitat. ions Monitoring Requirements Ibs/ day Other Units (Specify] Measurement Sample

• Sample

( ,

Monthly Avg. Daily Max. Monthly Avg. Daily Max. Frequency h location  !

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 para:itted 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 pli must be met at tha outfall from the Conventional Wastewater Treatment Facility when discharged through the facility.

• Sample location: E - Effluent

• • Monitoring and reporting for flow, pH, iron and copper are required only when chemical metal cleaning is performed.

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

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l Part I B. Schedule of Cnmpliance

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

Permittee shall comply with Final Effluent Limitations by the effective date of the permit.

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

3. No later than 14 calender days following a date identified in the above schedule of compliance, the permittne shall submit either a report of progress or, in the case of specific actions being required by identified dates, a writtan notice of compliance or noncorpliance. In the latter case, the notice shall include the cause of noncompliance, any remedial actions taken, and the probrallity of meeting ths next schedule requirements.

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I Part II Page 1 of 14 PART II STANDARD CONDITIONS FOR NPDES PERMITS S_ECTION 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 Vater 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 Conditions 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 wh> willfully or negligently violates a permit condition is guilty of a misdemeanor punishable by a fine not to exceed $15,000 per day of violation, or by impri"onment not to excend six months or both.

3. Duty to Mitigate The parmittee shall taka all reasonable steps to minimize any adverse impact to navigable 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 dodification After notice and opportunity for a hearing pursuant to NCGS 143-215.1(b)

(3) and NCGS 143-215.l(e) respectively, this permit may be modified, suspended, or revoked in whole or in part during its term for causn including, but not limitad to, the following:

a. Violation of any terms or conditions of this permit;

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

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 reissuanca, the permittee must report such information to the Permit Issuing Authority. The submittel of a new application

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t Part II Page 2 of 14 r

may be required of the permittee. The filing of a request by the permittee 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. Iof c Pollutants Notwithstanding Part II, A-4 ab<.ve, if a toxic effluent standard or prohibition

-(including'any schedule of compliance specified in such effluent standard or prohibition) ois established under Section 307(a) of the Act for-a toxic

-pollutant which is present.in the discharge, if such standard or prohibition is more stringent than any limitation for such pollutant in this permit, this

_ permit shall be; revised _or modiffed in accordance with the toxic effluent standard prohibition and the perm'Ittee so notified.

The permittee shall comply with effluent standards or prohibitions established under=Soction 307(a_) of the Clean Water Act for toxic pollutants within the' time _provided.in the regulations that establish those standards or prohibitions, even if'the permit--has not yet been modified to incorporate the" requirement.

6l Civil-and Criminal'Liabilliy Except as_ provided in permit conditions on " Bypassing'.' (Part II, B-3) and

" Power Failures" (Part II, B-6), nothing in this permit shall be construed; to relieve.the permittee from any responsibilities, liabilities, or penalties for noncompifance-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 consequenttal damages, such as fish kills,'even though the responsibility l

for effective compliance may be temporarily _ suspended.

7; 0i, Land _ _HyaJ d ou.s - Subs tance Liabi lity-H .

.Nothing[inthispermitshallbeconstruedtoprecludetheinstitutionofany legal action or relieve the permittee from any responsibilities, liabilities',

l. -or penalties to which the permittee is or may be subject to under NCGS 1 L 143-215.75 et-seq. or Section 311 of the Federal Act. 33 USC 1321. Furthermore, lL the: permittee-is responsible for consequential damages, such as fish kills,

! t even though the responsibility-for effectivo compliance may be temporarily _

suspended.

l 8 .= -Property R1Rhts~

The issuance of this permit does not convey any property rights in either real L

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.

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• 8 Part II Page 3 of 14 9 Onshore of Of fshor e Construction This permit does not authorire or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters.

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. Dut,y to Provide Information 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. The permittee shall also furnish to the Permit Issuing Authority upon request, copies of records required to be kept by this permit. -

SECTION B. OPERATION AND MAINTENANCE OF POLLUTION CON'TROLS

1. Proper Operation and Maintenance 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 wi.th the terms and conditions of this permit.

2. Need to Halt or Reduce not a Defense It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to enintain compliance with the condition of this permit.

3. Bypassing Any diversion from or bypass of facilities is prohibited, except (i) where unavoidable to prevent loss of life or severe property damage, or (ii) where excessive storm drainage or runof f 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 each newer system bypass or overflow;

b. The f tcquency, duration and quantity of flow f rom each sewer system bypass or overflow.

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.. T E Part II

~ Page 4 of 14 This requirement is waived where infiltration / inflow enalyses are scheduled to be performed as part of.an Environmental Proteccion 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.fs 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,

'leck of preventive maintenance, or careless or improper operation. An upset.

constitutes an affirmative defense to an action brought for noncompliance with such technology based permit limitation if the requirements of 40 CFR S

122.'41(n)(3) are met.

5. ' Removed Substances l  : 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 L -States.

l l1 '6. ' Power Failures

'nie'permitteefts responsible for maintaining; adequate safeguards as-required by(DEM Regulation, Title 15, North. Carolina Administrative Code,-Subchapter 2H,

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

, sources,- standby generators or retention of inadequately treated ef fluent.

SECTION C. MONITORING AND RECORDS l '. LRepresentative Sampling-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 loss 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 dilutad by any other wastestream,' body of water, or substance. Monitoring points shell- not be changed without notification to and the approval of the Permit issuing Authority.

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Part II Page 5 of 14 Reporting 2.

Monitoring results obtained during the pravious month (s) shall be summarized for each month and reported on a monthly Discharge Monitoring Report (DMR) Form l

-(DLil 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 followfug the issuance of the

. permit or in the case of a new f acility, on the last day _ of the month following

.the commencement of discharge. Duplicate signed copies of- these, and all other reportscrequired herein, shall be submitted to the following address:

.F Division of Environmental Management Water Quality Section ATTENTION - Central' Files i Post.0ffica Box 27687  !

Rnleigh, North Care 1 ins 27611

^3  : Flow Measurements Appropriate flow ~ measurement devices and methods consistent wit [h' accepted I

. scientific practices shall be' selected and used to insure 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 typo of dovice. Devices selected shall be capable of-measuring flows with a maximum deviation of less than + 10% from the true discharge rates I.

throughout the range;of- expected _ discharge volumes. -Once-through condenser-

._ cooling water flow which is monitored by pump;1ogs, or pump hour meters-as

'specified .in- Parta t - of this permit and . based on - the manuf acturer's -pump curves'shall not. be subject to this .requiremont.

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41 IA51.P.rocedu re s ETest procedures for the analysis of pollutants shall conform to the EMC 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. i i

To meet the11ntent of the monitoring required by this' permit, all test '

procedurns_must produce minimum detection and reporting levels that are'below ithe permit discharge requirements and'all-data generated must be reported-down l' to' the -minimum detection or lowor _ reporting level of the procedure. If no i; Lapproved methods are determined capable of achieving minimum detection and L reporting levels E be low permit discharge requirements, then the most sensitive (method with the lowest possible detection and reporting level) approved method i

-must he used, 3

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'i Part II Page 6 of 14

5. Penaltles for Tamperina The Clean Water Act provides that any person who falsifies, 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 not more-than $10,000 per violation, or by imprisonment for not more than '

six months;per violation, or by both.

6. Records Reten_ tion 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 f rom 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. RecordinJLR esults ,

For each measurement or samplo taken pursuant to the requirements of-this permit, the permitteo shall record the following information:

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

b. The. dates the analyses were performed;

c. The person (s) who-performed the analyses; and ud. The results of such-analyses.

. 8. - Right of- Engy -

i 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 1 to sample any discharge of pollutants.

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Part II Page 7 of'14 SE_CTION D. REPORTING REQUIREMENTS

1. ChanRe in Discharge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. Any anticipated facility 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 '

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 with permit requirements. -Any main'inance of fecilities, whi.ch might ,

necessitate unavoidable interruption of operation and degradation of effluent  !

quality, shall be scheduled during noncritical water quality periods and carrieo out-in a manner approved by the Permit Issuing Authority.

3. Trans fer of Ownership or- Cont rol 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 aor 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 Monitorinn_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 tna indicated. The DEM may require more frequent monitoring or the monitoring of other pollutants not required in this permit-by written notification.

5. Averazing_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. Noncompjiance Notification The permittee shall report by telephone to either the central office or the 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 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 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.

b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.

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

d. Any time that self monitoring information indicates that the f acility has gone out of compliance with its NPDES permit limitations.

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

7. Changes in Discharges of Toxic Substances:

The permittee shall notify the Permit Issuing Authority as soon as it- knows or has reeson to believe:

a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of any toxic substance (s) (listed at 40 CTR 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) 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 11 Page 9 of 14 .

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

. (listvo 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) t imes the maximum ' concentration value reported for that pollutant (s) in the permit application.

= 8. Expiratioq,of_ 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 af ter the expiration will subject- the permittee i to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et seg,  ;

9. -S l anatory R'eauirements All applications, reports, or information submitted to the Permit Issuing i

- Authority shall be signed and certified.

n'. All: permit applications shall be signed as'follows:

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

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

. functions l tor' the -corporation, 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 -

accordance with corporate procedures.

(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; ore

_ (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 position 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, superintendent, a position of equivalent responsibility, or an individual or position having overall responsibility for environ-mental matters for the company. (A duly authorized representative i 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 gather 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 information submitted is, to the best of my knowledge and believe, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."

10. Ayallability of Repst.s Except for data 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.l(b) (2) or in Section 309 of the Federal Act.

11. Penalties for Falsifica. tion of Reports The Clean Water 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 violet ten, or by imprisonment for not nore than six months per violation, or by both.

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Part II Page 11 of 14 SECTION E. DIEINITION

1. Permit Issulnn Authority The Director of the Division of Environmental Management

2. DEM or Division Means the Division of Environmental Management, Department of Natural Resources and Community Development. 3. EMC:

Used herein means the North Carolina Environmental Management Commission.

3. E.dC Used herein means the North Carolina Environmental Managnment Commission.

4 bet or."t,he Ac't" -

-The Federal Water Pollution Control Act, al'so known as the Clean Water Act, as amended, 33 USC 1251, et, seq.

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5. Mass / Day Measurements -

a. The "mo..thly average discharge: is define 3 the total mass of all

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daily discharges sampled and/or mesaured 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 arithmatic mean- found: by adding the weights of the

. pollutant _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'Averago" in Part I of the permit.

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 discharges are sampled and measured, "

divided by the number. of daily discharges samples and/or measured during such week. It is, therefore, an; arithmetic mean found by adding the weights of pollutants found each day of the week and then p 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.

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c. The " maximum daily discharge" is the total mass (weight) 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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i Part II Page 12 of 14

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 as " Annual Average" in Part I of the permit.

6. Concentra jon Measureme_ng

a. The " average monthly concentr .i.un," 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 measura:d, divided _by the number of daily discharges sampled.

and/or measured during such month (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 i during.that calendar day. The average monthly count for fecal coliform

--bacteria is _the geometric mean of the counts for samples collected during a calendar month. This-limitation-is identified as " Monthly Average" under:"Other Limits" in Part I of the permit.

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b. The " average weekly concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all- daily _ discharges sampled and/or

-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 grab samples is the-arithmetic mean.(weighted by flow value) of all-the samples collected during -3 that calendar day. The average weekly count for fecal coliform bacteria is R the geometric mean.of the counts for samples collected during a calendar week. This limitation is identifled as " Weekly Average" under Other 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

" Maximum Daily Concentration". It is identified as " Daily Maximum" under "Other IJmits" 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 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 Limits" in Part III 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 of the total daily flows recorded during the calendar month,

b. An " instantaneous flow measurement" is a measure of flow taken at the time of. sampling, when both the sample and flow will be representative of the

-total discharge.

8. Types of Samples I

a. Composite Sample: . These . samples L consist of grab samples collected at E

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 following. requirements apply. The intervals between influent grab samples.shall be no greater than hourly. . Intervals between effluent grab samples 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 case, the interval between grab samples shall be no greater in: number of' hours than the dstention time in number of days; provided, however, in no -case may toe .tiede 'oetween effluent grab samples be greater than six L hours nor the number of grab samples less than four during any discharge period ofl24 hours 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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i Part 11 Page 14 of 14

9. Calculation of Means

a. Arithmetic Mean: The arithmetic mean of any set of values is the summation

_ of the individual values divided by the number of individual values. >

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b. Geometric Hean: .The geometric mean of any set of values is the. Nth root of the' product of the individual values where N is equal to the number of individual values. The geometric.mean is equivalent to the antilog of  ;

the-arithmetic mean of the logarithms of the individual values. For

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purposes of calculating the geometric mean, values of zero (0) shall be considered to be one (1). 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.

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10. Calendar' Day; A1 calendar-day'Is defined as the period from midnight offone day until midnight

of the next day.- However, 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 Vater Act.

12L-Toxic Pollutant ~

-A' toxic' pollutant is any pollutant listad as toxic under Section.307(a)(1) of

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PART III OTHER REQUIREMEKTS A. Previous Permits

'All previous State water quality permits issued to this facility, whether for construction or operation or discharge, 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. -Constructipn No construction of wastewater treatment. facilities or additions thereto shall be begun until Final Plans and Specifications have been submitted to the i Division of Environmental Management and written approval and Authorization to Construct han been issued.

C. Certified Operator a '

Pursuant to Chapter.90A-44 of North Carolina General Statutes',1 the permittee shall_ employ a certified wastewater treatment plant operator in responsible charge (ORC) of the wastewater treatment facilities, Such operator must hold a certification of the grade equivalent to or greater than the classification assigned to the wastewater treatment facilities. The permittee:shall notify the. Division's Operator Training and Certification Unit within five days of any change in.the ORC status.  ;

-D. Gg,oundwater Monitori_ng The permittee shall, upon wr.itten , notice from the 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.

EE. ohimitations_ Reopener '

'This; permit shall be modified or alternatively, revoked and reissued, to-comply with.any applicable effluent guideline or water quality standard issued or approvedLunder 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 differta conditions or is otherwise more stringent than any effluent limita: ion'in the permit; or

2. -controls any pollutant not limited in the permit.

The permit as modified or reissued under this paragraph shall also contain any

other requiremants in the Act than applicable.

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, i 'c - o a E Part III Permit No. NC0024392 F. Toxicity Roopener 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 dischargei 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.

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

.I. 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 previously reported to the Division of-Environmental-Management. Such notification shall include completion of Biocide Worksheet Form 101 and a map locating the discharge point and receiving stream.

J. Continued intake. screen backwash discharge is permitted without limitatio'ns or i monitoring requirements. However, 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-Laws or regulations.

L. 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' -i limited to: wastewaters from wet scrubber air pollution _ control systems,_ ion-exchange water' treatment system, water treatment evaporator blowdown, laboratory and sampling streams, boiler blowdown, floor drains,: cooling tower basin 'eleaning wastes, _ and recirculating house service water systems. Sanitary-and air conditioning wastes are not included.

H .- The term " chemical metal cleaning waste" means-any wastewater resulting from the cleaning of any metal-process-equipment with_ chemical compounds including, but not-limitedito, boiler' tube cleaning. '

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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• The ' Division of Environmental- Management has approved the submitted 316(a) demonstration and has concluded that the existing thermal limitations are sufficient to protect the aquatic environment of-Lake Norman.

Q. Mixing Zone l

A m'ixing 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 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 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 consecutive toxicity tests,-using test procedures outlined 1.n:

1). The North Carolina Ceriodaphnia chronic ef fluent bloassay procedure (North Carolina Chronic Bioassay Procedure - Revised

• April 1989) or subsequent version.

The effluent concentration at which there 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 af ter thirty days f rom 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 entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B, Additionally, DEM Form AT-1 (original) is to be sent to the following address:

Attention: Technical Services Branch l North Carolir.a Division of

-Environment,il Management  ;

P P.O. Box 27687 Raleigh, 't C. 27611 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.

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

Should any test data from this monitoring requirement or tests periermed by the North Carolina Division of Environmental Management indicate potential impacts

.to the receiving stream, this permit may be reopened and modified to include p alternate monitoring requirements or limitr.

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" 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 imn.ediate retesting (within 30 days 1

, of: initial monitoring event). Failure to submit suitable test results will ..

constitute non-compliance with monitoring requirements, but will not subject _ l 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.

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

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T .- ' Die Lake Norman aquatic environment maintenance monitoring program approved by the Division of-Environmental Management shall'be continued. The monitoring

- results shall be. submitted annually, j 4

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 and in sewage treatment is. authorized. - - i LV. The permittee is hereby= authorized to discharge as follows:

a, The'CowansLFord Dam Underdrain discharge to the Catawba River which includes

-uncontaminated bearing lubrication and gland seal water, and possibly silt from the cyc' lone separators, and

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

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W. Acute' Toxicity Testing Requirement The permittee shall conduct acute toxicity tests on a quarteriv basis using i protoco'Is-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 or Ceriodachnia 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> static test.lusing' effluent l collected as.a 24 hour-composite.- The effluent concentration at which there may be at no time

.significant acute' mortality in any two consecutive toxicity tests is 90%

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.(defined as treatment two in the North Carolina procedure document). Effluent samples for self-monitoring purposes must be obtained during representative' c 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.

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e The parameter . code for this test if us ing Daphnia pulexis TGA3D. The I

. parameter' code ~for this test if using Ceriodaphia is TGA38.

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 parameter code TGE3D. Additionally, DEM Form-AT-2' (original)'is to be.sent to the following addrnss:

Environmental Sciences Branch North Carolina Division of Environmental Management PO 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 '

.ef fluent 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 _is passed. Upon passing, this monthly test rnquirement 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 to1 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 constituto 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 withuvalid certification under North Carolina's-laboratory

, certification: program.-

" X .'  : Acute Toxicity. Testing Requirement -

-The permittee'shall. conduct acute toxicity tests on a quarterly basis using-

, protocols defined as definitive in EPA Document 600/4-85/013 entitled "The-

[. Acute Toxicity of Effluents to Freshwater and.Martne Organisms". The monitoring shall be performed as a Daphnia putex 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 affluent collected as a' grab samp'le. The LC50 of this H

' effluentfusing the previously stated methodology may at no time in any two consecutive toxicity tests be less than 79%. Ef fluent samples - for self-monitoring; purposes must be obtained during representative effluent discharge below all waste treatment. The first test will be. performed after

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thirty days from-Issuance of this permit during the months of' February, May, August and. November.

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The parameter code for this-test if using Daphnia pulex is TAA3D. The

-parameter' code:for this test if using Ceriodaph .ia D is TAA3D. 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:

Environmental Sciences Branch North Carolina Division of Environmental Management PO 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 ef fluent 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 tima that a single test is; passed. Upon passing, this monthly test requirement will revert to quarterlyHin the months specified above. 3 Should any test data from_either this monitoring requirement or tests performed by.the North-Carolina Division'of Environmental Management indicate potential impacts to'the receiving stream, this permit may be reopened and modified to include alternate monitoring requirements or limits. , j

'" Failure to achieve test. conditions as specifled in the cited document,_such as minimum. control organism survival and appropriate environmental controls, shall 3 constitute:an invalid test and will require immediate retesting (within 30 days  :

-of initial. monitoring event). Failure to submit suitable test results will i 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 rotest and has engaged the services of a laboratory with valid certification under North Carolina's laboratory

. 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 f

' determine ths. abundance and oistribution 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

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profiles.-In-addition, these datea will be analyzed, where appropriate (using other lake specific information-collected either by Duke Power Company-or'other agenciesj wit.h regard to striped bass usage of the mixing zone.

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

l l: 3. Duke shall address maximum discharge temperatures f rom McGuire which will L occur-each month when the units are operating at maximum output. This l discussion shall entail the possible ef fect on swimmers / fallen skiers in l the thermal plume area during the summer months.

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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) Monitoring Requirement Reporting Form A, to be provided to all discharges affected by this monitoring requirement, 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).

2) Other significant levels of syt '.hetic organic chemicals must be identified and approximately quantified. For the purpose of implementing this requirement, the largest 10 GC/MS peaks in each 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" f

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PART IV ANNUAL ADMINISTERING AND COMPLI ANCE FEE REQUIREMENTS A. The permittee must pay the annual administering and compliance fee within 30 (thirty) days af ter 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 to initiate action to revoke the permit.

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