ML17273A043

NPDES Permit Fl 0002208,issued to Fl Power & Light

ML17273A043
Person / Time
Site:	Saint Lucie
Issue date:	01/29/1982
From:	Traina P ENVIRONMENTAL PROTECTION AGENCY
To:
Shared Package
ML17212B369	List: ML17212B368 ML17273A042 ML17273A043
References
FL-0002208, FL-2208, NUDOCS 8202100393
Download: ML17273A043 (53)

Text

Perm o.: FL0002208 UNITED STATES ENVIRONMENTALPROTECTION AGENCY REGION IV 545 COURTLAND STREET ATLANTA, GEORGIA 30363 AUTHORIZATIONTO DISCHARGE UNDER THE NATIONALPOLLUTANT DISCHARGE ELIMINATIONSYSTEM In compliance with the provisions of the Clean Water Act, as amended (33 U.S.C. 1251 et. seq; the "Act"),

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Florida Power and Light Company Post Office Box 529100 Miami, Florida 33152 is authorized to discharge from a facility located at St. Lucie Nuclear Power Plant Units 1 and 2 Hutchinson Island St. Lucie County, Florida to receiving waters named Atlantic Ocean from discharge points enumerated herein,, as serial numbers 001, 002, 003, 004, 005, 006, 007 and 008 in accordance with effluent limitations, monitoring requirements and other conditions set forth in Parts I, II, and III hereof. The permit consists of this cover sheet, Part I ll pages(s), Part II 2 1 page(s) and Part III 3 page(k).

This permit shall become effective on 4AN 3 9 1982 This permit and the authorization to discharge shall expire at midnight, JAN 88, Igg7, JAN 2 9 19S2 Date Signed Paul J. Traina Director Water Management Division (c~ A

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A. EFFLUENT LL~IITATIONSAND 41ONIYORING REQUI REMEN'I'S During the period beginning on e ff ective date and lasting through start o f Unit 2 chlorination the permittee is authorized to discharge from outfall(sl serial number(s) 001 Condenser cooling wa ter and auxiliary cooling water discharged to the Atlantic Ocean (includes other planr wastes).

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

Effluent Cataract ristic D is ch ar g e L imi t a t ion s Monitoring Requirements Instantaneous Measurement Sample Maximum Frequency 'I'ype Flow-m /Day (MGD) 0 N/A Hourly Pump logs Discharge Temperature 0 C( F) 45(113) 1/ Hourly Recorders Temperature Rise C( F) 16.7(30): 1/ Hourly Recorders Total Residual Oxidants-auxiliary systems(mg/1) 0.03 1/week Multiple Grabs Total Residual Oxidants-coedenser (mg/1) 0.10 2/ 1/week Mult'pie Grabs Mixing Zone Temperature C( 1') 3/ N/A N/A Gondenser Chlorine Addition (minutes/day) 120 N/A N/A Discharge of intake screen backwash is permitted without limitat ion or monitoring requirements.

Auxiliary cooling water systens for Unit I may be continuously chlorinated; however, TRO shall not exceed a naximum instantaneous concentration of 0.03 mg/1 prior to entry into the Altantic Ocean at times when only this source and/or the sewage treatment plant is being chlorinated. An intensive sampling program shall be instituted for at least 30 days following start of. system chlorination to assure compliance. In the event that TRO levels at the terminus of the discharge canal equal or exceed 0.02 mg/1, permittee shall imnlement a minimization studv as indicated in Part III.J. io 0 0 e a Permittee shall investigate the availability of continuous recording TRO monitors with low levels of sensitivity (0 .01 to 0 . 03 mg/1) and shall field test such unit(s)

Not later than the start of Auxiliary cooling water system chlorination, permittee o

shall install a continuous TRO recorder, if an acceptable device is found, at the terminus of the discharge canal. I;n the event that a continuous recorder cannot be installed by start of chlorination, efforts shall continue (with progress reports C)

C) submitted quarterly) and monitoring for TRO shall be 1/week on not less than six o grab samples during daylight hours. Additional grab samples shall be conducted during period(s) of TRO discharge from condensers. C7 (CONTINUED)

A. EFFLUENT LL11 STATIONS AN D il lONITORING REQUIREMEN1'S During the period beginning on ef f ective date and Lasting through start of Unit 2 chlorination the permittee is authorized to discharge from outfall{sl serial numbcr{s) 001 Condenser cooling water and auxiliary cooling water discharged to the Atlantic Ocean (includes other plant wastes) ~

(CONTINUED)

Samples taken in compliance with the monitoring requirements specified above shall hc taken <<t the following lacation{s).

(a Intake temperature and flow at plant intake and all p charge canal prior to discharge to the Atlantic Ocean.

1/ Under the following conditions the maximum discharge temperature shall be limited to 47.2 C(117 F) and the temperature rise to 17.8(32): (1) Condenser and/or cir-culating water pump maintenance, (2) trottling circulating water pumps to minimize use o f c hl o rine and (3) fouling 0 of circulating water system. In the event that discharge temperature exceeds 45 C(113 0 F) permittee shall notify the C ie, a er Permits Branch in a manner similar to that provided for in Part II.A.3.c. (5 days).

2/ Total residual oxidants (TRO) shall not exceed a maximum instantaneous concentration of 0-10mg/l. TRO shall not be discharged from Unit 1 condensers for more than two hours per day.

3/, The ambient ocean surface temperature snail not exceea exceed 36.1 C(97 P) as an instan-taneous maximum at any point.

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A. EFFLUENT LLillTATlONSAND hlOYITORlNG REQUI REMEN'1'8 During the period beginning on start of Unit 2 chlorination and lasting through expiration the permittee is authorized to discharge from outfall(sl serial number(s) 001 and 008 Condenser cooling water and auxiliary, cooling water discharged to the Atlantic Ocean (includes other plant wastes) from Units 1 and 2, respectively.

Such discharges shall be limited arid monitored by the permitted as specified below:

Effluent Charact ristic Dischar e Limitations h1onitoring Requirements Instantaneous Measurement Sample Maximum Frequency Type Flow-m3/Day (MGD) 0 N/A Hourly Pump logs 0

Discharge Temperature 0 0 C ( F) 45(113) 1/ Hourly Recorders Temperature Rise C( F) 16.7(30) 1/ Hourly Recorders Total Residual Oxidants-auxiliary systems.'gmg/1) 0.03 1/week Multiple Grabs Total Residual Oxidants-condensers (mg/1) 0.10 1/week Multiple Grabs Free Residual Oxidants fmg)l) See Below 1/week Multiple Grabs Mixing Zone Temperature C( F) 36. 1 (97) 2/ See P~rt III.I.

Condenser Chlorine Addition (minutes/day/unit) 120 per unit Daily T,ng Discharge of intake screen backwash is permitted without limitation or monitoring requirements.

Free available oxidants shall not exceed and average concentration of 0.2 mg/1 to and a an in-maximum instantaneous concentration of 0.5 mg/1 at the outlet corresponding dividual condenser during any chlorination period. Neitherfrom free available oxidants (FAO) nor total residual oxidants (TRO) may be discharged either unit condensers for more than two hours in any one day and not more than oneTROunit may discharge FAO shall not exceed a or TRO from its condensers at any one time. Additionally, maximum instantaneous concentration of 0.10 mg/1 at any time as measured in the dis- a 0

charge canal prior to discharge to the Atlantic Ocean.

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Auxiliary cooling water systems for Unit may be continuously chlorinated; however, TRO 1

shall not exceed a maximum instantaneous concentration of 0.03 mg/l prior to p'

entry into the Altantic Ocean at times when only these sources and/or the sewage treatment plantare being chlorinated. An intensive sampling program shall be C')

instituted for at least 30 days following start of system chlorination to assure C)

C) compliance. In the event that TRO levels at the terminus of the discharge canal equal or exceed 0.02 mg/1, permittee shall implement a r inimization study as C) indicated in Part Ill.J.

(CONTINUED)

A. EFFLUENT LDIITATIONSAND hIONIYORING REQUIREMEN'I' During the period beginning on start of Unit 2 chlorination and lasting through expiration the permittee is authorized to discharge from outfall(sl serial number(s) 001 and 008 Condenser cooling water and auxiliary cooling water dischar"ed to the Atlantic Ocean (includes other plant wastes) from Units 1 and 2, respectively.

(CONTINUED)

Not later than three years after promulgation or July 1, 1987, whichever is earlier, there shall be no discharge of TRO. Notwithstanding the foregoing, the permittee may upon successfully showing the Director, Water Management Division, that the facility must use chlorine for cooling water system biofouling control, discharge the minimum amount of TRO necessary to operate the facility. In no case shall TRO be discharged for more than two hours per day nor shall the TRO exceed an instantaneous maximum of 0.0l mg/l at the terminus of the discharge canal. Not later than one year after promul-gation, permittee shall submit a proposed implementation schedule to expeditiously pro-vide controls necessary to comply with these requirements. Note: In the event that BAT regulations for control of TRO or chlorine are promulgated in a manner inconsistent with the October 14, 1980, proposed guidelines, requirements of this paragraph will be modi-fied consistent with the promulgated regulations (40 CFR 423).

Permittee shall investigate the availability of continuous recording TRO monitors with low levels of sensitivity (0.01 to 0.03 mg/l) and shall field test such unit(s).

Not later than the start of Auxiliary cooling water system chlorination, permittee shall install a continuous TRO recorder, if an acceptable device is found, at the terminus of the discharge canal. In the event that a continuous recorder cannot be installed by start of chlorination, efforts shall continue (with progress reports submitted quarterly) and monitoring for TRO shall be 1/week on not less than six grab samples during daylight hours. Additional grab samples shall be conducted during period(s) of TRO discharge from condensers.

Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): Intake temperature and flow at plant intakes and all other parameters in the discharge canal prior to discharge to the Atlantic Ocean, except that TRO and FRO shall also be monitored at the condenser discharge for each Unit prior to entry into the plant discharge canal.

1/ Under the following conditions the maximum discharge temperature shall be limited to 47.2 0 C(117 0 F) and the temperature rise to 17.8(32): Condenser and/or circu-=

lating water pump maintenance, and (2) fouling of circulating water system. In the event that discharge temperature exceeds 45 C(113 F) permittee shall notify

. the Chief Water Permits Branch in a manner similar to that provided for in Part II.A. 3.c. (5 days).

2/ The ambient ocean surface temperature shall not exceed 36.1. C(97 F) as an in-stantaneous maximum at any point.

A. EFFLUENT LL~IITATIONSAND MONITORING REQUIREMENTS Duringthe period beginning on the effective date of this permit and lasting through exp ira t ion the permittee is authorized to discharge frum outfall(sl serial number(s) 002 1/ Low volume waste discharge to intake canal from Vnits 1 and 2 Such discharges shall be limited and monitored by the permittee as specified below:

Effluent Characteristic Discharge Limitations Monitoring ltequirements kg/day (lbs(day) Other Units ('mg/l )

Measurement Sample Daily Avg Daily Max Daily Avg Daily Max Frequency Type Flow-m3(Day (MGD) N/A N/A N/A N/A 1/week Calculation Oil and Grease Al(90) 55(120) 15 20 1/week Grab Total Suspended Solids 82(180) 270(600) 30 100 1/week Composite Prior to the start of discharges from Vnit 2, quantity limitations shall be one-half of the limitation shown.

Xn the event that .this waste is directed to an evaporation/percolation pond from which there is no discharge, these effluent limitations and monitoring requirements will not applv ~

The pH shall not be less than 6 0 standard units nor greater than

~ 9 ~ 0 standard units and shall be monitored 1/batch on a grab sample.

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

Samples taken in compliance with the monitoring requirements specified above shall be taken at the f~>llowinv. h r-;uion(s):.

ischarge from the neutralization basin prior to mixing with any other waste '0 stream. 9 00 lD Z H 1/ Serial number assigned for identification and monitoring purposes.

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A. EFFLUENT LDIITATIONSAND MONITORING REQUIREMENTS During the period beginning on the effective date of this permit and lasting through expiration the permittee is authorized to discharge from outfall(sl serial number(s) 003 1/ Pre-opera tional metal cleaning wastes from Unit 2 and similar cleaning operations discharged to discharge canal Such discharges shall be limited and monitored by the permittee as specified below:

Effluent Cataract ristic Disrharge Limitations Monitormg Requirements kg/batch (lbs/batch) Other Units I mg/1 )

Measurement Sample Daily Avg Daily Max Frequency Type 0

Flowm3/Day (MGD) 2/ N/A N/A I. /day Determination (s)

Oil and Grease 2/ 15 20 2/ Grab Total Suspended Solids 2/ 30 100 2/ Composite Copper, Total 2/ 1.0 1.0 2/ Composite Iron, Total 2/ 1.0 1.0 2/ Composite Phosphorus as P 2/ 1.0 1.0 2/ Composite Metal cleaning wastes shall mean any cleaning compounds, rinse waters, or any other water-borne residues derived from cleaning any metal process equipment. The quantity of pollut-ants discharged from this source shall not exceed the quantity determined by multiplying the flow of metal cleaning wastes times the concentrations listed above.

In the event that this waste is directed to an evaporation/percolation pond from which there is no discharge, these effluent limitations and monitoring requirements will not apply.

The pH shall not be less than 6. 0 standard units nor greater than 9 .0 standar<l units and shall be monitored on representative grab samples.

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

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Samples taken in compliance with the monitoring requirements specified above shall he lak<<n at the foll<<winy, in< ation(s): z H discharge from the metal cleaning wastes treatment facility(s) prior to mixing with any other waste stream. ~ J r

CD 1/ Serial number assigned for identification and monitoring purposes. o o

2/ The total quantity of each pollutant discharged shall be reported. In no case shall the quantity discharged exceed the quantity determined by multiplying O the volume of. the batch o f metal. cleaning waste genera ted times the concen- OQ trations noted above (i.e., 3.8 kg (8.3 lbs) of iron, copper and phosphorus; 57 kg (125 lbs) ol'i i I an<I grease, and 114 kg (250 ebs) of total suspended solids per mi l ion ga1 iona of meta'I cleaning waste generated) . The permi 1

itt pollutan tee shall sh lutants also report the frequenry of measurem<nt <<sed to adequately quantify the o discharged. Total vol<<me of wastewater generated and discharge shall be reported-

A. EFFLUENT LLiIITATIONSAND MONITORING REQUI IKEMENTS During the period beginning on the effective date of this permit and lasting through expiration the permittee is authorized to discharge from outfall(sl serial number(s) 004 1/ Radwaste System Discharge to discharge canal from Units 1 and 2.

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

Effluent Characteristic Disrharge Limitations Monitoring Requirements kg/day (lbs/day) Other Units ( mg/l )

Measurement Sample Daily Avg Daily Max Daily Avg Daily Max Frequency Type N/A 1/batch Calculation ow Flow m/

m Daay( MGD ) N/A N/A N/A Oil and Grease 4.1(9.0) 5.5(12.0) 15 Total Suspended Solids 8.2(18) 27.0(60.0) 30 Prior to the start of discharges from Unit 2, quantity limitations shall be one-half of the limitation shown.

In the event that metal cleaning wastes are discharged through this serial number, limi-tations shall not exceed those provided for outfall serial number 003.

This discharge is regulated by the Nuclear Regulatoryto Commiss~on under the provisions of its o crating license and is the monitored and reported the Nuclear Regulatory Commission.

No additional monitoring of radiological aspects of this discharge are required herein.

The pH shall not be less than N/A standard units nor greater than 9. 0 standar~l units and shall be monitored 1/batch. n 9

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

Samples taken in compliance with the monitoring requirements specified above shall he tak<<n at the followinv, iof 'uion(s):

discharge from the radwaste system prior to mixing with any other waste stream. r C) 1/ Serial number assigned for identification and monitoring purposes. C) 2/ If radwastes is passed through filter and demineralizer system, sampling C) shall be 2/month on representative batches. If data for a one-year period C)

.indicates that all oil and grease determinations are less than 10 mg/1, this CO monitoring may be discontinued.

A. EFFLUENT LL~IITATIONSAND MONITORING REQUIREMENTS During the period beginning on the effective date of this permit and lasting through expiration the permittee is authorized to discharge fron> outfall(sl serial number(s) 005 1/ Dewatering wastes from Unit 2 construction discharged to intake or discharge canal Such discharges shall be limited and monitored by the permittee as specified below:

Effluent Characteristic Discharge Limitations Monitoring Requirements hleasurement Sample Daily Max Daily Avg Frequency Type Flow-m3/Day (MGD) N/A N/A 2/month Calculation Total Suspended Solids (mg/1) 55 115 2/month Grab

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

2 H Samples taken in compliance with the monitoring requirements specified above shall he taken at the following i: i ation(s): I 00 point(s) discharge prior to entering the intake or discharge canals. r C)

C) 1/ Serial number assigned for identification and monitoring purposes. C) hD C)

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A. EFFLUENT LLilITATIONS AND MONITORING REQUI REMEN'I'S During the period beginning on effective date and lasting through expiration the permittee is authorized to discharge from outfall(sl serial number(s) 006 1/ Sewage Treatment Plant Discharge Such discharges shall be limited and monitored by the permittee as specified below:

Effluent Otaracteristic Discharge Limitations Monitoring Requirements mg/1(except as noted)

Daily Avg. Daily Max. Measurement Sample Frequency I ype Flowm /Day (MGD) N/A 64(0.017) 1/week Instantaneous BOD5 30 60 1/quarter Grab 2/

Total Suspended Solids 30 60 1/quarter Grab 2/

Fecal Coliform organisms/100 ml N/A N/A 1/quarter Grab In addition to the specific limits, the daily average effluent BOD5 and suspended solids concentrations shall not exceed 10 percent of the respective daily average influent con-centrations.

Effluent shall be aerobic at all times.

The pH shall not be less than 6. 0 standard units nor greater than 9. 0 standanl units and sl.all l)e lclotlltc)f d 1/week.

AC) C) 0 There shall be no discharge of floating solids or visible foam in other than trace amounts: o Ch) g Samples taken in rompliance with the monitoring requirements specified above shall l)r rt MI t;tkrn at tlte fc llo>>to~ tc)cat'.o .(:):

Sewage treatment plant discharge prior to mixing with any other waste streams. 0 1/ Serial number assigned for identification and monitoring purposes.

2/ Influent and eCflucnt. CD CD CD CD 00

A. EFFLUENT LL~IITATIONSAND MONITORING REQUIREMENTS Ouringthe period beginning on ef f ective date and lasting through expiration the permittee is authorized to discharge from outfall(sl serial number(s) 007 3./ Steam Cleanup System Blowdown to discharge canal from Units 1 and 2 Such discharges shall be limited and monitored by the permittee as specified below:

Effluent Cataract ristic Discharge Limitations Monitoring Requirements Measurement Sample Daily Avg. Daily Max. Frequency Type Flow-m3/Day (MQD) N/A m/A 2/ Calculation Oil and Grease img/1) 15 20 2/ Grab Total Suspended Solids (mg/l) 30 100 2/ Grab Total Iron (mg/1) 1.0 1.0 2/ Grab Total Copper (mg/1) 1.0 1.0 2/ Grab

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There shall be no discharge of floating solids or visible foam in other than trace amounts. g rt HI S amp!es

! taken in <<ompliance with the monitoring requirements specified above shall h<< taken <<l the fcitloiAA"~orat'.o'.I..):

point(s) of discharge prior to entering the discharge canal. o a 1/ Serial number assigned for identificatio ica ion an d monitoring purposes.

2/ One ne per dis er discharge event or one per week whichev ieverr is. more f.requent. Total CD volum ume of batch and period of discharge shall be reported Co

PART I Page I-11 permit No. FL0002 208 B. SCHEDULE OF COWIPLIANCE

1. The permittee shall achieve compliance with the effluent limitations specified for discharges in accordance with the following schedule:

a. All effluent limitations shall be met on effective date or start of discharge

b. Aquatic monitoring program (Part III.F.)

(1) Implement 'Continuing (2) Annual Reports April 30 of each year C ~ Discharge structure operation (Part III.G.)

(1) Operational scheme December 31, 1981 operation of Unit 2 condenser pumps

a. Thermal Plume Monitoring (Part III.I.)

(1) Study Plan Three months prior to fuel loading of Unit 2 (2) Report 15 months after commercial operation date of Unit 2

e. Auxiliary Cooling System Chlorine Minimization (Part III.J)

(1) Implement Start of system chlorination (2) Status reports Quarterly (4 reports)

(3) Final Report 15 months after implementation

2. No later than 14 calendar days following a date identified in the above schedule of compliance, the 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 scheduled requirement.

,Part II Page II-1 A. MANAGEMENT REQUIREMENTS

1. Discharge Violations All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant more frequently than, or at a level in excess of, that identified and authorized by this permit constitutes a violation of the terms and conditions of this permit. Such a violation may result in the imposition of civil and/or criminal penalties as provided in Section 309 of the Act.

2. Change in Discharge 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 at least 180 days prior to commencement of such discharge. Any other activity which would constitute cause for modification or revocation and reissuance of this permit, as described in Part II (B) (4) of this permit, shall be reported to the Permit Issuing Authority.

3. Noncompliance Notification

a. Instances of noncompliance involving toxic or hazardous pollutants should be reported as outlined in Condition 3c. All other instances of noncompliance should be reported as described in Condition 3b.

b. If for any reason, the permittee does not comply with or will be unable to comply with any discharge limitation specified in the permit, the permittee shall provide the Permit Issuing Authority with the following information at the time when the next Discharge Monitoring Report is submitted.

(1) A description of the discharge and cause of noncompliance; (2) The period of noncompliance, including exact dates and times and/or anticipated time when the discharge will return to compliance; and (3) Steps taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge.

Part II Page II-2

c. Toxic or hazardous discharges as defined below shall be reported by telephone within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after permittee becomes aware of the circumstances and followed up with information in writing as set forth in Condition 3b. within 5 days, unless this requirement is otherwise waived by the Permit Issuing Authority:

(1) Noncomplying discharges subject to any applicable toxic pollutant effluent standard under Section 307(a) of the Act; (2) Discharges which could constitute a threat to human health, welfare or the environment. These- include unusual or extra-ordinary discharges such as those which could result from bypasses, treatment failure or objectionable substances passing through the treatment plant. These include Section 311 pollutants or pollutants which could cause a threat to public drinking water supplies.

d. Nothing in this permit shall be constr'ued to relieve the permittee from civil or criminal penalties for noncompliance.

4. Facilities Operation All waste collection and treatment facilities shall be operated in a manner consistent with the following:.

a. The facilities shall at all times be maintained in a good working order and operated as efficiently as possible. This includes but is not limited to effective performance based on design facility removals, adequate funding, effective management, adequate operator staffing and training, and adequate laboratory and process controls (including appropriate quality assurance procedures); and

b. Any maintenance of facilities, which might 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.

c. The permittee, in order to maintain compliance with this permit shall control production and all discharges upon reduction, failure of the treatment facility until the facility is loss,'r restored or an alternative method of treatment is provided.

5. Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to waters of the United States resulting from

Part II Page II"3 4

noncompliance with any effluent limitations specified in this permit, including such accelerated or additional monitoring as necessary to determine the nature of the noncomplying discharge.

6. Bypassing "Bypassing" means the intentional diversion of untreated or partially treated wastes to waters of the United States from any portion of a treatment facility. Bypassing of wastewaters is prohibited unless all of the following conditions are met:

a. The bypass is unavoidable-i.e. required to prevent loss of life, personal injury or severe property damage;

b. There are no feasible alternatives such as use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment down time;

c. The permittee reports (via telephone) to the Permit Issuing Authority any unanticipated bypass within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after becoming aw'are of it and follows'up wi:th written noti'fication .

in 5 days. Where the necessity of a bypass is known (or shoul'd be known) in advance, prior notification shall be submitted to the Permit Issuing Authority for approval at least 10 days beforehand, if possible. All written notifications shall contain information as required in Part II (A)(3)(b); and

d. The bypass is allowed under conditions determined to be necessary by the Permit Issuing Authority to minimize any adverse effects.

The public shall be notified and given an opportunity to comment on bypass incidents of significant duration to the extent feasible.

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

7. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the United States.

Part II Page II-4

8. Power Failures The permittee is responsible for maintaining adequate safeguards to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources, standby generators or retention of inadequately treated effluent. Should the treatment works not include the above capabilities at time of permit issuance, the permittee must furnish within six months to the Permit Issuing Authority, for approval, an implementation schedule for their installation, or documentation demonstrating that such measures are not necessary to prevent discharge of untreated or inadequately treated wastes. Such documentation shall include frequency and duration of power failures and an estimate of retention capacity of untreated effluent.

9. Onshore or Offshore 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 waters of the United States.

BE RESPONSIBILITIES 1.. Right of Entry The permittee shall allow the Permit Issuing Authority and/or authorized representatives (upon presentation of credentials and such other documents as may be required by law) to:

a. 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;

b. Have access to and copy at reasonable times any records required to be kept under the terms and conditions of this permit;

c. Inspect at reasonable times any monitoring equipment or monitoring method required in this permit;

d. Inspect at reasonable times any collection, treatment, pollution management or discharge facilities required under the permit; or

e. Sample at reasonable times any discharge of pollutants.

Part II Page II-5

2. Transfer of Ownership or Control A permit may be transferred to another party under the following conditions:

a. The permittee notifies the Permit Issuing Authority of the proposed transfer;

b. A written agreement is submitted to the Permit Issuing Authority containing the specific transfer date and acknowledgement that the existing permittee is responsible for violations up to that date and the new permittee liable thereafter.

Transfers are not effective if, within 30 days of receipt of proposal, the Permit Issuing Authority disagrees and notifies the current permitttee and the new permittee of the intent to modify, revoke and reissue, or terminate the permit and to require that a new application be filed.

3. Availability of Reports Except for data determined to be confidential under Section 308 of the Act, (33 U.S.C. 1318) all reports prepared in accordance with the terms of this permit shall be available for public inspection at the offices of the State water pollution control agency and the Permit Issuing Authority. 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 Section 309 of the Act (33 U.S.C. 1319).

4. Permit Modification After notice and opportunity for a hearing, this permit may be modified, terminated or revoked for cause (as described in 40 CFR 122.15 et seq) including, but not limited 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 thatrequires either temporary interruption or e1.imination of the permitted discharge; or

d. Information newly acquired by the Agency indicating the discharge poses a threat to human health or welfare.

Part II Page II-6 If the permittee believes that any past or planned activity would be cause for modification or revocation and reissuance under 40 CFR 122.15 et seq, the permittee must report such information to the Permit Issuing Authority. The submission of a new application may be required of the permittee.

5 ~ Toxic Pollutants a ~ Notwithstanding Part II (B)(4) above, if a xic 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 authorized herein and such standard or prohibition is more stringent than any limitation fo" such pollutant in this permit, this permit shall be revoked and reissued or modified in accordance with the toxic effluent standard or prohibition and the permittee so notified.

b. An effluent standard established for a pollutant whic? is injurious to human health is effective and enforceable by the time set forth in the promulgated standard, even though this permit has not as yet been modified as outlined in. Condition .5a.

6. Civil and Criminal Liability Except as provided in permit conditions on Bypassing", Part II (A) (6), nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for noncompliance.

7. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may be subject under Section 311 of the Act (33 u.S.C. 1321).

8. S ta te l.aws Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties established pursuant to any applicable State law or regulation under authority preserved by Section 510 of the Act.

Part II Page II-7

9. Property Rights 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 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 circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby.

ll. Permit Continuation A new application shall be submitted at least 180 days before the expiration date of this permit. Where EPA is the Permit Issuing Authority, the terms and conditions of this permit are automatically continued in accordance with 40 CFR 122;5, provided that the permittee has submitted a timely and sufficient application for a renewal permit and the Permit Issuing Authority is unable through no fault of the permittee to issue a new permit before the expiration date.

C. MONITORING AND REPORTING Representative Sampling Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored discharge.

2. Reporting Monitoring results obtained during each calendar month shall be summarized for each month and reported on a Discharge Monitoring Report Form (EPA No. 3320-1). Forms shall be submitted at the end of each calendar quarter and shall be postmarked no later than the 28th day of the month following the end of the quarter. The first report is due by the 28th day of the month follow'ing the first full quarter after the effective date of this permit.

Part II Page II-8 Signed copies of these, and all other reports required herein, shall be submitted to the Permit Issuing Authority at the following address(es):

lfater Permits Branch Environmental Protection Agency Region IV 345 Courtland Street, N.E.

Atlanta, Georgia 30365

3. Test Procedures Test procedures for the analysis of pollutants shall conform to all regulations published pursuant to Section 304(h) of the Clean'Water Act, as amended (40 CFR 136, "Guidelines Establishing Test Procedures for the Analysis of Pollutants" ).

4. Recording of 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;

b. The person(s) who obtained the samples or measurements;

c. The dates the analyses were performed;

d. The person(s) who performed the analyses;

e. The'nalytical techniques or methods used; and

f. The results of all required analyses.

5. 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 required in the Discharge Monitoring Report Form (EPA No. 3320-1). Such increased frequency shall also be indicated.

Part II Page II-9

6. Records Retention The permittee shall maintain records of all monitoring including:

sampling dates and times, sampling methods used, persons obtaining samples or measurements, analyses dates and times, persons performing analyses, and results of analyses and measurements. Records shall be maintained for three years or longer if if there is unresolved litigation or requested by the Permit Issuin'g Authority.

D. DEFINITIONS

1. Permit Issuing Authority The Regional Administrator of EPA Region IV or designee.

2. Act "Act" means the Clean Water Act (formerly referred to as the Federal Water Pollution Control Act) Public Law 92-500, as amended by Public Law 95-217 and Public Law 95-576, 33 U.S.C. 1251 et seq.

3 ~ Mass/Day Measurements

a. The "average monthly discharge" is defined as the total mass of all daily discharges sampled and/or measured during a calendar month on which daily discharges are sampled and measured, divided by the number of daily discharges sampled and/or measured during such month. It is, therefore, an arithmetic mean found by adding the ~eights of the pollutant found each day of the month and then dividing this sum by the number-of days the tests were reported.

This limitation is identified as "Daily Avera'ge" or "Monthly Average" in Part I of the permit and the average monthly discharge value is reported in the "Average" column under "Quantity" on the Discharge Monitoring Report (DMR) ~

b. The "average ~eekly discharge" is defined as the total mass of all daily discharges sampled and/or measured during a calendar week on which daily discharges are sampled and/or measured divided by the number of daily discharges sampled and/or measured during such week. It is, therefore,'n arithmetic mean found by 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 and the average weekly discharge value is reported in the "Maximum" column under "Quantity" on the DMR.

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

Part II Page II-l0 calculated from it is the "maximum daily discharge". This limitation is identified as "Daily Maximum," in Part I of the permit and the highest such value recorded during the reporting period is reported in the "Maximum" column under "Quantity" on the DMR.

4, Concentration Measurements

a. The "average monthly concentration," other than for fecal coliform bacteria, is the concentration of all daily discharges sampled and/or measured during a calendar month on which daily discharges are sampled and measured 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 grabs samples is the arithmetic mean (weighted by flow value) of all the samples collected during that calendar day. The average monthly count for fecal coliform bacteria is the g eometric mean of the counts for samples collected during a calendar month. This limitation is identified as "Monthly Average" or "Daily Average" under "Other Limits" in Part I,of the. permit and the average monthly concentration value is reported under 'the "Ave'rage" column under "Quality" on the D".fR.:

b, The "average weekly concentration," other than for fecal coliform bacteria, is the concentration of all daily discharges sampled and/or measured during a calendar week 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 samples collected during that calendar day. The average weekly count for fecal 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 Limits" in Part I of the permit and the average weekly concentration value is reported under the "Maximum" column under "Quality" on the DMR.

c, The "maximum daily concentration" is the concentration of a pollutant discharged during a calendar day. It is identified as "Daily Maximum" under "Other Limits" in Part I of the permit and the highest such value recorded during the reporting period is reported under the "Maximum" column under "Quality" on the DMR.

Part II Page II-ll

5. Other Measurements

a. The effluent flow expressed as M3/day (MGD) is the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> average flow averaged monthly. It is the arithmetic mean of the total daily flows recorded during the calendar month.

Where monitoring requirements for flow are specified in Part I of the permit the flow rate values are reported in the "Average" column under "Quantity" on the DMR.

b. Where monitoring requirements for pH, dissolved oxygen or fecal coliform are specified in Part I of the permit the values are generally reported in the "Quality or Concentration" column on the DMR.

6. Types of Samples

a. Composite Sample A "composite sample" is any of the following'.

(l) Not less than four influent or effluent portions collected at regular intervals over a period of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and composited in proportion to flow.

(2) Not less than,.four equal volume influent or effluent portions collected over a period of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />'t intervals proportional to the flow.

(3) An influent or effluent portion collected continuously over a period of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a rate proportional to the flow.

b. Grab Sample: A "grab sample" is a single influent or effluent portion which is not a composite sample. The sample{s) shall be collected at the period(s) most representative of the total discharge.

7. 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'.

Geometric Mean: 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'ndividual values. The geometric mean is equivalent to the antilog of the arithmetic mean of the logarithms of the individual values. For purposes of calculating the geometric mean, values of zero (0) shall be considered to be one (1).

Part II Page II-12

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.

8. Calendar Day

a. A calendar day is defined as the period from midnight of one 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.

Part III Page III-1 Permit No. FL0002208 PART III OTHER REQUIREMENTS A. There shall be no discharge of polychlorinated biphenyls com-pounds such as those commonly used for transformer fluid.

B. The company shall notify the Director, plater Management Division in writing not later than sixty (60) days prior to instituting use of any additional biocide or chemical used in cooling systems, other than chlorine, which may be toxic to aquatic life other than those previously reported to the Environmental Protection Agency. Such notification shall include:

1. name and general composition of biocide or chemical,

2. quantities to be used,

3. frequencies of use,

4. proposed discharge concentrations, and

5. EPA registration number, if applicable.

C. Plant stormwater which is uncontaminated by plant wastes may be discharged without limitation or monitoring requirements.

D. Intake screen backwash may be discharged without limitation or monitoring requirements.

E. All environmental monitoring reports besubmitted to the U. S.

Nuclear Regulatory Commission shall submitted to EPA .

F ~ Permittee shall continue the approved non-radiological aquatic monitoring program (revised continuation of existing program) which serve as St. Lucie 1 operational and St. Lucie 2 pre-oper-ational and operational. The program will continue for at least two years after Unit 2 begins commercial operation. After this period the program will be evaluated by the Permittee and EPA to assess the continued need or possible deletion and/or modifi-cation of the program. Reports shall be submitted annually not later than April 30 of the year following the reporting period.

G. Subsequent to the commercial operation date of Unit 2, heated water shall be discharged from the Unit 2 multiport discharge line when only one unit'is operating. Periods of short-term, one-unit operation shall not be subject to this requirement.

Not later than December 31, 1981, a proposed operational scheme, including a definition of "short-term", hall be sub-mitted for approval by the Director, Hater Management Division and State Director to assure conformance with these require-ments.

Part III Page III-2 Permit No. FL0002208 H. If an applicable standard or limitation is promulgated under sections 301(b)(2)(C) and (D), 304(b)(2), and 307(a)(2) and that effluent standard or limitation is more stringent than any effluent limi.tation in this permit or controls a pollutant not limi,ted in this permit, this permit shall be promptly modi-fied or revoked and reissued to conform to that effluent standard or limitation.

I. Permittee shall implement a monitoring program to assure com-pliance with temperature limitations provided herein and with thermal requirements of the Florida Water Quality Standards.

Such program to include field surveys, infrared thermal imagry overflights and/or other monitoring to assure compliance. A study plan shall be submitted for approval not later than three months prior to fuel loading of Unit 2 and shall be expedi-tiously implemented on approval. A report shall be submitted not less than 15 months after implementation.

J. Permittee shall conduct a chlorine minimization program for the auxiliary cooling water system levels at the terminus of the if discharge the TRO concentration canal during contin-uous chlorination of the auxiliary system(s) equal or exceed 0.02 mg/L. Such study if required, shall be conducted gen-erally in conformance with techniques and concepts published in Appendix A, ~ 68354, October 14 1980> to the extent im-plementable on the auxiliary cooling system at the St. Lucie Plant. Implementation of the plan, if required, shall be no later than 30 days after the Permittee becomes aware that the concentration level of TRO equals or exceeds 0.02 mg/L. Brief status reports shall be submitted quarterly with the first report due at the end of the third full month following im-plementation of the study. A final report shall be submitted not less than the end of the fifteenth full month of the im-plementation,

Part III Page III-3 Permit No. FL0002208 Copies of reports submitted in accordance with Part III.F.

shall be forwarded by the permittee as follows:

Number of Co ies Addressee 2 ChieX, Water Permits Branch, EPA (Atlanta) 1 Chic f, Ecology Branch, EPA(Athens)

Florida Dept. of Environmental Regulation 2

(Tallahassee)

Assistant Director for Environmental Technology USNRC (Washington)

Regional Director, Fish and Wildlife Service (Atlanta)

Regional Director, National Marine Fisheries Service (St. Petersburg)

Additionally, two copies of all plans and reports submitted in accordance with Parts III. G, I and J shall be submitted to FLDER (Tallahassee) and USEPA (Atlanta) and one copy to EPA (Athens).

L. The State of Florida Department of Environmental Regulation has certified the discharge(s) covered by this permit with conditions (Attachment B). Section 401 of the Act requires that conditions of certification shall become a condition of the permit. The monitoring and sampling shall be as indicated for those parameters included in the certification.

Any effluent limits, and any additional requirements, spec-ified in the attached state certification which are more stringent supersede any less stringent effluent limits pro-vided herein. During any time period which the more strin-gent state certification effluent limits are stayed or in-operable, the effluent limits provided herein shall be in effect and fully enforceable.

ATTACHMENT A NPDES No. FL0002208 ST. LUCIE PLANT WASTEWATER FLOW DIAGRAM UNIT Il STP 006 UNIT I2 DEWATERING 005 INTAKE WASTES CANAL NEUTRALIZATION BASIN 002 FLOOR DRAINS EVAPORATION/

CONSTRUCTION PERCOLATION AREA RUNOFF PONDS UNIT UNIT Cl I2 UNIT I2 STP METAL CLEANING WASTES 003.

DISCHARGE RADWASTE 004 CANAL DISCHARGE IT 2 004 STEAM GENERATOR CLEAN-UP SYSTEM BLOWDOWN 007 UNIT g2 UNIT 01 MULTIPORT PIPE DIFFUSER Y DIFFUSE 008 ATLANTIC OCEAN

ATTACHMENT B NPDES No. FL0002208 STATE OF FLORIDA DEPARTMENT OF ENVIRONMENTALREGULATION BOB GRAHAM GOVERNOR TWIN TOWERS OFFICE BUILDING 2600 BLAIR STONE ROAD VICTORIA J. TSCHINKEL TALLAHASSEE, FLORIDA 32301 SECRETARY I

~EOf fW

%AVER m'0R~T BRANCH January 27,1982 IRZIKlllP JAR 29 t982 Paul J. Traina Director, Water Division EPA-REGION VI U.S. Environmental Protection Agency ATLANTA, GA.

345 Courtland Street, N.E.

Atlanta, Georgia 30365

Dear Mr. Traina:

Pursuant to Section 401 of the Federal Water Pollution Control Act, Public Law 92-500, as amended, the State of Florida hereby issues certification to:

Florida Power & Light Company FL0002208 St. Lucie Nuclear Power Plant Units 1 and 2 St. Lucie County an applicant for a National Pollutant Discharge Elimination System permit.

State certification for Unit 1 is issued subject to the following conditions:

A. The applicant meets all effluent limitations, monitoring and other requirements developed for the revised draft NPDES permit dated October 15, 1981.

B. The applicant complies with all applicable requirements of Chapter 403, Florida Statutes, and Chapter 17 series, Florida Administrative Code.

1. The concentration of pollutants discharged from this facility must meet State water quality standards at the point of discharge in accordance with Chapter 17-3, F.A.C.,

unless a mixing zone has been obtained in accordance with Chapter 17-4, F.A.C. If a mixing zone has been approved, State water quality standards would apply at the edge of the mixing zone. Certain minimum criteria still apply to those waters located within mixing zones approved by the Department (see Section 17<<3.051, F.A.C.). The mixing zone is defined according to Chapter 17-4.244, Florida Administrative Code.

Protecting Florida and Your Quality of Life

Paul J. Traina Page two

2. In accordance with Chapter 17-3.061(2)(j), Florida Adminis-trative Code, the following surface water standards shall be met in the receiving body of water except within zones of mixing:

a. Dissolved or emulsified oils and greases shall not exceed 5.0 mg/1.

b. No undissolved oil or visible oil defined as iridescence, shall be present to cause taste or odor, or otherwise interfere with the beneficial uses of waters.

State certification for Unit 2 is issued subject to the following conditions:

A. The applicant meets all effluent limitations, monitoring and other requirements developed for the revised draft NPDES permit dated October 15, 1981.

B. The applicant complies with the terms and requirements of the conditions of certification in Case No. PA-74-02 as revised on 3/12/80 and modified on 12/7/81 (see Attachment I) pursuant to applicable requirements of Chapter 403, Florida Statutes, and Chapter 17 series, Florida Administrative Code.

If the above requirements are met, the discharge from this facility will comply with Sections 301, 302, and 303 of the Federal Water Pollution Control Act, as amended.

Insofar as the Department can determine, there are no further limi-tations under Sections 306 and 307 of the Act applicable to this discharger.

The Department may modify the effluent limitations and other conditions placed on this facility pursuant to Federal and State law, should further water quality analysis of the discharge, its volume and character, together with the flow and characteristics of the receiving body of water, indicate that the discharge will not meet and comply with applicable water quality standards contained in Chapter 17-3, Florida Administrative Code.

The correct address for submission of Florida's copy of the Discharge Monitoring Reports is:

Paul J. Traina Page three Florida Department of Environmental Regulation South Florida Subdistrict Branch Office 2745 Southeast Morningside Blvd.

Port St. Lucie, FL 33452 Sincerely, Su ne P. Walker Ch , Bureau of Permitting SPW:hpp cc: District w/attachment Applicant w/attachment

PERMIT RATIONALE ST. LUCIE NUCLEAR POWER PLANT UNITS 1 and 2 FLORIDA POWER AtlD LIGHT COMPANY JANUARY 7, 1982 I. Applicable Regulations A. The proposed conditions provide for compliance with (1) Effluent Guidelines and Standards for the steam electric power generating point source category (40 CFR 423) as romul ated on October 8, 1974 (39 Federal Re ister 86 , and with ro osed guide-snes revsssons published on October , 980 (45 FR 68328), for plant chemical wastes; and (2) a tentative determination under Section 316(b) of the Clean Water Act for the plant cooling water intake; as well as, B. Provisions of the Florida Water guality Standards (Chapters 17-3 and 17-4 Florida Administrative Code).

The receiving waters have been classified by the State of Florida as Class III - Recreation - Pro-pagation and Management of Fish and Wildlife - Sur-f ace waters.

II. Effluent Limitations A. Out fall Serial Numbers (OSN) 001 and 008 - Once thr ough condenser cooling water and auxiliary coo ling water:

Temperature: Discharge temperature of 45 C(113 F) at the terminus of the discharge canal, except under specific abnormal operatinq conditions when limitation is 47.2 0 C(117 0 F) and temperature rise of 16.7 C(30 F) and 17.8 C(32 F), respec-tively. Limitations are as requested by the applicant and are supported by biological sam-pling data.

2. Total residual oxidants (includes total residual chlorine):

a. An instantaneous maximum limitation of 0. 1 mg/1 due to condenser chlorination for a maximum period of two hours per day per unit. Limi-tation is based on Water guality Standards requirements which are more stringent than effluent guidelines. Florida Standards (17-4.244(4)) preclude a maximum pollutant concentration within a mixing zone which exceeds the amount lethal to 50 percent of the test organisms in 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> (96-hr LC50) for a species significant to the indigenous aquatic community. The 96-hr LC50 value for Blue Crabs of 0.10 mg/1 has been used to establish the effluent limit.

b. An instantaneous maximum limitations of 0.03 mg/1 due to continuous chlorination of auxiliary cooling systems at times other than during main condenser chlorination has been included, as a best professional judgement.

A minization study is required if TRO levels .

from this source exceed 0.02 mg/1 at the terminue of the discharge canal.

c. Requirements of the October 8, 1974, promul-

~ated and October 14, 1980, ro osed regula-tions and a reopener provision ave been included also.

2 1 d by ~)d ~d OSN 002 - Low volume wastes:

d Limitations are as guantity limstations are computed using a waste flow of 0.72 MGD, based on historical records

'123.12( )(3).

from Unit 1.

OSN 003 - Metal 2 d y ~)d cleaning wastes: Limitations are 123.12(b)id) osed 423.13(g), except that a best professional gu gement limitation for phosphorus of 1.0 mg/1 d 3 has been included.

OSN 004 - Radwaste: Limitations are as required 3 '123.12(b)[3) 2 volume wastes using a f ow of 0.07 MGD, based on historical records for Unit 1. NOTE: The radio-active component of this discharge is regulated by the U. S. Nuc1 ear Regul atory Commi ss i on and is not subject to NPDES permitting requirements.

Comments relative to the radioactive component of this discharge should be directed to NRC and may not be considered by EPA in its permitting decisions.

OSN 005 - Dewatering Wastes from Unit 2 Con-struction: Concentration limitations on total suspended solids are included based on best pro-fessional judgement and historical records.

Due to the highly variable nature of this waste flow, quantity limitations are not provided.

OSN 006 - Sewage treatment plant discharge:

Limitations are generally based on secondary treatment requirements (40 CFR 102) for do-mestic waste. However, the one-day maximum, limitations of 60 mg/1 each for total sus-pended solids and biochemical oxygen demand (BOD) proposed is extrapolated from the seven-day average limitation of 45 mg/1 presented in the regulations. This extrapolation was made to conform with the proposed monitoring frequency.

G. OSN 007 - Steam d

guantity limitations

~1d cleanup system blowdown:

4(( ((

Limi-423.12(( { {

are not included due to the infrequent nature (normally recycled) and vari-able flow of the waste stream.

H. guant ity Limitations: guanti ty imi tat ions are 1

calculated as follows:

guantity (lbs/day)=8.345 x Flow (NGD) x Allowed Concentration (mg/1) where: 8.345 is the appropriate conversion factor, flows are based on historical data from Unit I and information provided by the applicant, and con-centrations (mg/1) ar e as provided in applicable subsections of 40 CFR 423.

I. Proposed Permit Period: Five years. The NPDES permit requires compliance with the most stringent requirements of either the ~ro-mul ated (October 8, 1974) or ro osed (Octo-er 4, 1980) regulations (40 CFR 23. 12, etc.).

Data on priority pollutants has been submitted from Unit I. Samples can not be collected from Unit 2 waste sources since the Unit is not yet in operation. Evaluation of data submitted by the applicant for Unit I and expected effluent.

quality from Unit 2, have led the permit writer to the tentative conclusion that additional treatment for priority pollutants is not likely for any pollutants and that a full five-year permit should be issued. However, to assure that this judgement is correct, a reopener clause is included in the permit (Part III.H.)

in the event that more stringent requirements are ultimately promulgated by EPA.

January 29, 1982 ST. LUCIE NUCLEAR PLANT BEST TECHNOLOGY AVAILABLE (BTA) FINDING FOR CIRCULATING WATER SYSTEM MODIFICATIONS A BTA finding of fact for the existing intake system was con-ducted by EPA in 1981. Since that finding, Florida Power and Light Company (FPSL) submitted an application proposing a third cooling water pipeline to correct for predicted headlosses and reductions in canal water level when unit 2 becomes operational'nformation found in EPA's finding of fact (1981) and documents submitted on December 3, 1981 by FPSL are the substance of the following findings for the proposed intake structure.

FINDINGS o An ocean pipeline and channel extension to convey cooling water from the At,lantic Ocean into the existing intake canal is proposed. The 1515 ft long pipeline is 16 ft inside diameter, extends 1195 ft offshore, and it is buried beneath the dunes and ocean bottom. The pipe will terminate into a velocity cap adjacent to the existing caps. The velocity cap structure will be similar in size and design to the existing structures (EPA, 1981).

o The new pipeline will have a maximum design flow velocity of approximately 6.8 fps, 3.2 fps less than the velocity of the two existing pipelines.

o The location of the velocity caps are in a high energy/low impact area as characterized in EPA's (1981) prior finding of fact.

o Permanent losses include 1/2 acre of mangrove swamp pre-empted for an access road and canal widening. Removal of less than 1/2 an acre of the swamp represents about 1% of the mangrove between the intake and discharge canals.

o Temporary impacts because of construction activities include 14.7 acres of disturbed benthos, disruption of littoral flow of sand, decreases in turtle nesting, and excavation of a strip of dune vegetation and sand less than 100 ft wide ~

o Specific provision designed to minimize impact caused by construction include:

oo construction of a temporary beach dune when cut-ting through the natural dunes, oo use of sheet piling and/or silt screens around excavation work to limit turbidity to <50 Jackson units, oo disposal of soils in an approved onshore disposal, oo a turtle nest surveillance and relocation program on those areas of beach potentially affected by construction activity, and oo dune area contours restored to pre-construction conditions, and the disturbed areas replanted with native dune-stabilizing species.

OPINION Based upon the information received from FP&L and our experience

3. n assessing th a t power plant impacts over the past decade, it is our th e d e sign capacity, construction and locationn oof opinion th e ir oc ean intake structure of the St. Lucie Nuclear an th' reflects BTA for minimizing adverse impacts to terrestra.aial com-munities and oceanic fishes and invertebrates.

B ecause o i increased e intake capacity of this power plant and the present entrapment rate of endangered sea tur es, i s in our opinion, that the company should assess technology aimed at preventing entrapment of sea turtles at the velocity cap of this new structure. Best technology available does 'not preclude, in our opinion, additional improvements upon BTA to protect en-dangered species.

REFERENCES EPA, 1981. St. Lucie Nuclear Plant 316(b) Finding for Best Tech-nology Available. Region lV, Atlanta, Georgia.

FP&L transmittal of information to Mr. Traina, Direct ector of Water Management Division. December 3, 1981.

1 August 15, 1981 ST. LUCIE NUCLEAR PLANT 316(b) Finding for Best Technology Available Section 316(b) of P.L.95-217 requires that the location, design, construction and capacity of cooling water intake structures reflect the best technology available (BTA) for minimizing adverse environmental I

impacts. Decisions relating to BTA are to be made on a case-by-case basis using such factors as size and type of water body and relative magnitude of flow withdrawn for cooling (40CFR, Pt. 402). Through deliberations between Florida Power and Light Company (FPL) and several government agencies, BTA was determined for the St. Lucie Nuclear Plant intake system prior to plant operation.

FINDINGS The 2-unit 1612 net NW St. Lucie Nuclear Plant is located on a 1130-acre site of Hutchinson Island, Florida approximately mid-way between Ft. Pierce and St. Lucie inlets. The nuclear plant is bound on the west by the Indian River and on the east by the Atlantic Ocean.

The condenser cooling water is provided by a once-through I

circulating water system which consists of intake and discharge

I pipes in the ocean linked by canals to the nuclear plant. The ocean intake for Units 1 and 2 is located 1200 ft from the Atlantic shoreline in a high energy/low impact area characterized by water turbulence and shifting sand or sand-shell substrate with a lack of bottom cover or outcroppings. The unstable substrate precludes the establishment of macrophytes or attached benthic communities.

From the ocean intake point, water is drawn through 2 buried pipe-lines (I.D. 12.0 ft) at 10 fps to the intake canal. This 300-it ft wide canal hecfins 450 ft west of the shoreline where funnels the cooling water some 500 ft to the nuclear plant intake structures (bars and screens). Pumps at the nuclear plant provide a design flow of 2290 cfs (5.62 x 10~ m3/day) for condenser cooling through the nuclear plant. Approach velocities to each of 8 traveling screens are less than 1.0 fps. Traveling screen washings are sluiced to a trash pit where organisms and trash are collected for disposal.

The top of the ocean intakes (Figure 1) are situated approxi-mately 8 ft below the water surface at mean low water. A vertical section to prevent sanding and bottom organism migration and a velocity cap to minimize fish entrapment were installed for each pipe. Pre'sently, with one unit operating, horizontal intake velocities are 0.5 fps; with both units, velocities will increase.

to approximately 1.0 fps. The design .l of the ocean intake is similar to that employed by Southern California Edison Company at their El Segundo fossil fuel plant. At El Segundo, 272 tons of fish were entrapped during the first year of operation when no velocity cap was used and the flow vectors entering the in-take were vertically downward. After installation of a velocity cap with maximum design flows of 3.5 fps, only 15 tons of fish were entrapped in the following year (94.5% reduction) (USAEC, 1974) ~ Velocity ~caps are designed to provide flow rate in a hori-zontal radial direction because fish are familiar with horizontal velocities, and they usually will tend to swim against a current even when their net movement is downstream. Vertical velocities<

however, are not commonly found in nature, and a detection response mechanism does not seem to exist for them in fishes (USAEC, 1974) ~

The Florida Department of Natural Resources'iami Research Laboratory in conjunction with FPL conducted preoperational base-line environmental studies of the marine environment adjacent, to the St. Lucie Nuclear Plant from September 1971 to July 1974-In 1975, Applied Biology, Inc. continued the monitor'ing through 1980. Unit 1 was placed on-line in 1976. The nuclear plant was base loaded throughout 1977, 1978, 1979 and 1980. Monitoring information pertaining to entrapment of fishes and invertebrates over the years shows that:

I o The primary commercial fishes in St. Lucie and Martin Counties are Spanish Mackerel, King Mackerel, and Blue-fish. During the past 5 years, only 5 Spanish Mackerel; 10 King Mackerel and 24 Bluefish have been collected in the intake canal by gill netting designed to determine accumulations of fishes and shellfishes in the canals o The greatest yearly canal catch over the past 5 years was 1501 fish in 1980. Total estimated fish biomass lost to the Atlantic Ocean that year was 6818 kg or about 0.2% of the St. Lucie and Martin County commercial catches. A total of 121 shellfish weighing 42.5 kg was also collected during the same period.

o Five species of marine turtles are found along Hutchinson Island. The most common is the Atlantic loggerhead turtle followed by the green turtle, leatherback turtle, hawksbill turtle, and the Atlantic Ridley turtle. The leatherback turtle and the Florida population of green turtles are classified as endangered species by the Federal Government ECFR 41 (208):47180-47198; CFR 43:32,808j, and all marine turtles are protected by Florida Statute 307.12; 1974.

o Total sea turtle entrapment in the St. Lucie intake canal over a 6-year period amounted to 572 loggerheads, 51 greens, 6 leatherbacks, 1 hawksbill, and 1 Atlantic Ridley ~ Annual entrapment of all 5 species has ranged from 0 to 173 '

Ichthyoplankton was generally abundant during the spring and summer of each year. The most common larval fishes were herrings and anchovies. Eggs and larvae collected averaged from 0.13 to 5.50/m3 as compared to the baseline sampling of 0.23/m3. These concentrations are substantially I

lower than concentrations found in a more productive area, the upper Indian River, where mean densities of eggs and larvae were 132.83/m3 (Applied Biology, Inc. and Ray L.

Lyerly and Associates, 1980).

o,Average egg and larval populations in the intake canal (0 '89 eggs/m3 and 0.080 larvae/m3) were lower than average populations found offshore.

o To put the impact of entrainment into perspective, an offshore boundary was determined for the region from which ichthyoplankton is potentially withdrawn by the nuclear

plant. The distance between the designated offshore boundary I

and the shoreline is 3500 m and the average depth is 9.2 m for a calculated cross-sectional area of 32,200 m The percentage loss estimates from 1976 through 1980 for fish eggs ranged from 0. 13 to 0. 50 and for fish larvae losses ranged. from 0.01% to 0.18%.

Ecology Branch staff has been assessing power plant impacts over the past decade. There is nothing in the monitoring infor-mation reviewed that, in our opinion, warrants a detailed 316(b) study nor the continued monitoring of the intake for fishes and invertebrates. The design, capacity and location of the ocean in-take structure of the St. Lucie Nuclear Plant reflects, in our opinion, BTA for minimizing adverse impacts upon these organisms.

ln view of the declining world populations of marine turtles, the Hutchinson island turtle rookery is of special importance in maintaining marine turtle populations. Because of the nuclear plant's location on Hutchinson Xsland and the protected status of sea turtles, it is our opinion that continued monitoring of turtle entrapment is necessary to fully evaluate intake location, design and capacity.

REFERENCE Applied Bio1ogy, Inc. and Ray L. Lyerly and Associates. 1980.

Biological and environmental studies at the Florida Power and Light Co. Cape Canaveral Plant and the Orlando Utilities Commission Indian River Plant. Vol. I.

U.S. Atomic Energy Commission. 1974. Final EIS related to con-struction of St. Lucie Plant Unit 2, Florida Power and Light Company Docket No. 50-389.

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FLORIDA POWER St LIGHT COMPANY November 9, 1981 - ~ ~', tA Mr. Charles Kaplan US-FPA Region IV 345 Courtland Street Atlanta, Georgia Re: Comments on St. Lucie Plant NPDES Permit Public Notice

Dear Charlie:

FPL has reviewed the subject document dated October 15, 1981 and submits the following comments for your consideration:

1) First page of Permit Rationale, Item II.A.1.

It is suggested that language be added to this item specifying that compliance with these thermal limitations will be demonstrated at the terminus of the discharge canal.

2) Second page of Permit Rationale, Item II.A.2.b.

This item should be amended as follows: ......discharge at times other than durin main condenser chlorination.

3) Page I-3 In column entitled Effluent Characteristic, change Condenser Chlorine Addition to Condenser Chlorine ~Disohar e.

Last paragraph, first sentence should be amended to read ....Atlantic Ocean at times when onl this source is bein chlorinated.

4) Page I-4 First paragraph third sentence should be amended to read .....0.1 mg/L at the terminus of the dischar e canal.

Second paragraph, add the following after the second sentence; This re uirement a lies onl if an instrument has demonstrated suecessFul o eration as re uired b the last ara a h a e I-l of this ermit.

Sincerely,

.~ Mp>(

e W. J. Barrow, Jr.

Manager of Permitting and Programs W JBjr:ADB:ku PEOP . SERVING PEOPLE

anuary 29, 1982 Response to Comments St. Lucie Nuclear Power Plant NPDES Permit No. FL0002208 A. Florida Power and Light Company, November 9, 1981.

1. Revision included.

2. Revision included.

3a. Revision not included per discussions with Nr. Frank M. Gavila of the FP & L staff. As stated in Footnote 2 Page I-2 and the middle paragraph (below effluent limi-tations) on Page I-3, it is the Agency intent to limit only the discharge of TRO from condenser chlorination to two hours per day per unit. However, it has been agreed between EPA and FP & L staff that for monitoring purposes, it was easier to document the time of chlorine addition which is approximately equal to the time of discharge. At some future time should FP & L prefer to analyze for TRO in the condenser effluent to document that TRO is being discharged for only two hours per day per unit. EPA would concur.

3b. Revision included but with reference to Sewage Treatment Plant (Page I-1 also).

4a. Revision included.

4b. Revision not included. EPA concurs that use of a con-tinuous recorder will only be applicable if demonstrated successful. The referenced paragraph on Page I-1 is identical to that on Page I-4.

P.O. BOX 529 I 00 I l I '.; I, F L 33152 FLORIDA POWER & LIGHT CO' '. 1 September 15, 1981 Mr. Michael Taimi, Chief Consolidated Permits Branch U.S.E.P.A., Region IV 345 Courtland St., ¹E.

Atlanta, Georgia 30308 Re: St. Lucie Unit No. 1 NPDES No. FL0002208

Dear Mr. Taimi:

This transmittal constitutes an official request to amend FPRL's St. Lucie Unit No. 1 NPDES application disclosing FPRLIs intention to continuously chlorinate the auxiliary cooling systems for Unit No. 1.

FPRL had determined that continuous and direct low level chlorination of these systems is the most efficient manner to prevent the auxiliary heat exchanger from experiencing biofouling pr oblems.

FPRL may institute continuous chlorination of these systems as early as November 1981.

FPRL estimates there vill be no measurable discharge of chlorine to the Atlantic Ocean as a result of this activity nor will there be any adverse environmental impact to the receiving body of water.

Should there be a need of clarification of the above disclosure, please have your staff contact Frank M. Gavila at telephone 305-552-3568.

Sincerely, Robert E. Uhrig Yice President Advanced Systems k Technology REU:FMG:dc cc: Buck Oven State of Florida DER

ST. LUCIE PLANT AUXILIARY COOLING WATER SYSTEM CHLORINE MONITORING PROGRAM Initial Start up of Auxiliary Cooling Water System Chlorination at 24 hr./day schedule.

Day 1 TRC Test Locations Freauenc Heat Exchanger Outlet 2/day End of Unit 2 Discharge Canal 2/day Terminus of Facility Discharge Canal 1/hour Blank on Intake Water 2/day Record Chlorinator Flow Rate 12/day If TRC is detectable at the terminus of the facility discharge canal during the initial 1.5 hrs. of chlorination, injection of chlorine to. the auxiliary system chlorination will be terminated for Day 1 and resumed on Day 2 at lower dose rate. Day 1 procedure will be followed until such time that no TRC is detectable at terminus of discharge canal utilizing aperometric titration test method.

Day 2 through Day 7 TRC Test Locations Fre uenc Heat Exchanger Outlet 2/day End of Unit 2 Discharge Canal 2/day Terminus of Facility Discharge Canal 6/day Blank on Intake Water 2/day Record Chlorinator Flow Rate 12/day Day 8 through 2 Months TRC Test Locations Fre uenc Heat Exchanger Outlet 1/day End of Unit 2 Discharge Canal 1/day Terminus of Facility Discharge Canal 1/day Blank on Intake Water 1/2 weeks Record Chlorinator Flow Rate 6/day Evaluation of test results to be made concurrently with test program from Day 1 through 2 months. FP&L will report prior to completion of the test period to EPA via telephone results, general conclusions drawn from results and proposed schedule of monitoring beyond the two month test period.

AUXILILARYSYSTEM CHLORINE MINIMIZATION STUDY GUIDELINES The effectiveness of chlorine treatment on the auxiliary cooling water heat exchangers will be examined using the following techniques:

1) Visual observations of heat exchangers during maintenance outages including photographs and maintenance cleaning records.

2) Measurement of pressure differentials between inlet and outlet sides of heat exchanger.

3) Correlation of chlorine dose rates with results of visual observations and measurement of chlorione concentrations at the terminus of the discharge canal.

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