ML102700607
| ML102700607 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/23/2010 |
| From: | Hartz L Dominion Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 10-554, FOIA/PA-2011-0115 | |
| Download: ML102700607 (93) | |
Text
Dominion Nuclear Connecticut, Inc.
5000 Dominion Boulevard, Glen Allen, Virginia 23060 Web Address: www.dom.com September 23, 2010 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Serial No.
NSSLIWES Docket No.
License No.10-554 RO 50-423 NPF-49 DOMINION NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 3 NRC NOTIFICATION OF RENEWED NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT In accordance with the Millstone Power Station Unit 3 Facility Operating License No.
NPF-49, Appendix S, Section 3.2, Dominion Nuclear Connecticut, Inc. hereby submits the renewed National Pollutant Discharge Elimination System Permit.
Should you have any questions in regard to this submittal, please contact Wanda Craft at 804-273-4687.
Sincerely, c!:?~zJ Vice President - Nuclear Support Services Commitments made in this letter:
None
Attachment:
Millstone Power Station Unit 3 NPDES PERMIT ID CT0003263
Serial No.10-554 Docket No 50-423 NRC Notification of Renewed NPDES Permit Page 2 of 2 cc:
U. S. Nuclear Regulatory Commission Region I Regional Administrator 475 Allendale Road King of Prussia, PA 19406-1415 C. J. Sanders NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 08-83 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station
Serial No.10-554 Docket No. 50-423 ATTACHMENT MILLSTONE POWER STATION UNIT 3 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT 10 CT0003263 DOMINION NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 3
STATE OF CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION NPDES PERMIT issued to Location Address:
Dominion Nuclear Connecticut, Inc.
Millstone Power Station (MPS)
Rope Ferry Road Waterford, CT 06385-0128 Facility ID: 152-003 Receiving Stream: Long Island Sound Watershed SECTION 1: GENERAL PROVISIONS Millstone Power Station Rope Ferry Road Waterford, CT 06385 Permit ID: CT0003263 Permit Expires: 08/3112015 (A)
This permit is reissued in accordance with section 22a-430 of Chapter 446k, Connecticut General Statutes
("CGS"), and Regulations of Connecticut State Agencies ("RCSA") adopted thereunder, as amended, and sections 316(a), 316(b) and 402(b) of the Clean Water Act, as amended, 33 USC 1326(a), 1326(b) and 1251, respectively, and pursuant to an approval dated September 26, 1973, by the Administrator of the United States Environmental Protection Agency for the State of Connecticut to administer an N.P.D.E.S.
permit program.
(B)
The discharge is subject to the effluent guidelines and standards for the steam electric power generating point source category promulgated on November 19, 1982 pursuant to Section 301 of the Federal Clean Water Act, as amended. Specifically, this discharge is subject to 40 CFR Parts 122, 123, 124, 125 of the National Pollutant Discharge Elimination System and Part 423 of the effluent guidelines and standards.
(C)
Dominion Nuclear Connecticut, Inc., ("Permittee"), shall comply with all of the terms and conditions of this permit including the following sections of the RCSA that have been adopted pursuant to section 22a-430 of the CGS and are hereby incorporated into this permit. The Permittee's attention is especially drawn to the notification requirements of subsection (i)(2), (i)(3), O)(l), 0)(6), 0)(8), 0)(9)(C), 0)(1O)(C), 0)(1l)(C),
(D), (E), and (F), (k)(3) and (4) and (1)(2) of section 22a-430-3.
Section 22a-430-3 General Conditions (a) Definitions (b) General (c) Inspection and Entry (d) Effect of a Permit (e) Duty (f) Proper Operation and Maintenance (g) Sludge Disposal (h) Duty to Mitigate (i) Facility Modifications; Notification U) Monitoring, Records and Reporting Requirements PERMIT # CT0003263 (Printed on Recycled Paper) 79 Elm Street
_ Hartford, CT 06106-5127 www.ct.gov/dep All Equal Opportunity Employer
(k) Bypass (1) Conditions Applicable to POTWs (m) Etfluent Limitation Violations (Upsets)
(n) Enforcement (0) Resource Conservation (p) Spill Prevention and Control (q) Instrumentation, Alarms, Flow Recorders (r) Equalization Section 22a-430-4 Procedures and Criteria (a) Duty to Apply (b) Duty to Reapply (c) Application Requirements (d) Preliminary Review (e) Tentative Determination (f) Draft Permits, Fact Sheets (g) Public Notice, Notice ofHearing (h) Public Comments (i) Final Determination.
G) Public Hearings (k) Submission ofPlans and Specifications. Approval.
(1) Establishing Effluent Limitations and Conditions (m ) Case by Case Determinations (n) Permit issuance or renewal (0) Pennit Transfer (p) Permit revocation, denial or modification (q) Variances (r) Secondary Treatment Requirements (s) Treatment Requirelllents for Metals and Cyanide (t) Discharges to POTWs - Prohibitions (D)
Violations of any ofthe terms, conditions, or limitations contained in this permit may subject the Permittee to enforcement action including, but not limited to, seeking criminal or civil penalties, injunctions and/or forfeitures pursuant to applicable sections ofthe CGS and RCSA or federal law.
(E)
Anyfalse statement by the Permittee in any information submitted pursuant to this permit or in the Permittee's application may be punishable as a criminal offense under section 22a-438 or 22a-131a ofthe CGS or in accordance with section 22a-6, pursuant to section 53a-157b ofthe CGS.
(F)
The authorization to discharge under this permit may not be transferred without prior written approval of the Commissioner of Environmental Protection ("the Commissioner"). To request such approval, the Permittee and proposed transferee shall register such proposed transfer with the Commissioner, at least 30 days prior to the transferee becoming legally responsible for creating or maintaining any discharge which is the subject ofthe permit transfer. Failure, by the transferee, to obtain the Commissioner's approval prior to commencing such discharge(s) may subject the transferee to enforcement action for discharging without a pennit pursuant to applicable sections ofthe CGS and RCSA.
(G)
No provision ofthis permit and no action or inaction by the Commissioner shall be construed to constitute an assurance by the Commissioner that the actions taken by the Permittee pursuant to this permit will result in compliance or prevent or abate pollution.
PERMIT # CT0003263 2
(H)
Nothing in this pennit shall relieve the Permittee of other obligations under applicable federal, state and local law.
(I)
The Permittee shall pay an annual fee for each year this pennit is in effect as set forth in section 22a-430-7 ofthe Regulations of Connecticut State Agencies.
(J)
This pennitted discharge is consistent with the applicable goals and policies ofthe Connecticut Coastal Management Act (section 22a-92 ofthe Connecticut General Statutes).
SECTION 2: DEFINITIONS (A)
The definitions ofthe terms used in this permit shall be the same as the defmitions contained in section 22a-423 ofthe CGS and section 22a-430-3(a) and 22a-430-6 ofthe RCSA, except for "No Observable Acute Effect Level (NOAEL)" which is redefined below. '
(B)
In adqition to the above, the following definitions shall apply to this pennit:
"-----,, in the limits column on the monitoring table means a limit is not specified but a value must be reported on the DMR.
"All Life Stages" means eggs, larvae,juveniles, and adults.
"Annual" in the context of a sampling frequency, means sampling is required in the month of January. Ifthere is no discharge during the month of January the Pennittee shall report "No Discharge" in the Discharge Monitoring Report ("DMR") and sample during the subsequent month when discharge becomes available.
"Average Monthly Limit"; when expressed as a concentration (e.g. mg/l), shall mean the maximum allowable "Average Monthly Concentration" as defined in section 22a-430-3(a) ofthe RCSA; otherwise, it shall mean "Average Monthly Discharge Limitation" as defined in section 22a-430-3(a) ofthe RCSA.
"Alternate Sample Location" means a representative sample ofthe same system wastewater. The discharge can be sampled from the alternate location based upon the following factors, including but not limited to: (a) operational status of a unit (e.g., startup, shutdown, operation); (b) maintenance and/or repair on systems that would preclude the use ofthe primary sample location; or (c) administrative controls (Millstone Power Station or NRC). Reporting of alternate sample location'use will be included in the monthly DMR.
"Batch" means the contents of a tank or sump that has been sampled and has no inputs prior to being discharged unless otherwise described in process description.
"Calculation Baseline" means an estimate of impingement mortality and entrainment that would occur at your site assuming that: the cooling water system has been designed as a once-through system; the opening ofthe cooling water intake structur,e is located at, and the face ofthe standard 3/8-inch mesh traveling screen is oriented parallel to, the shoreline near the surface ofthe source waterbody; and the baseline practices, procedures, and structural configuration are those that your facility would maintain in the absence of any structural or operational controls, including flow or velocity reductions, implemented in whole or in part for the purposes ofreducing impingement PERMIT # CT0003263 3
mortality and entrainment. You may also choose to use the current level of impingement mOltality and entrainment as the calculation baseline. The calculation baseline may be estimated using:
historical impingement mortality and entrainment data you're your facility or from another facility with comparable design, operational, and environmental conditions; current biological data collected in the waterbody in the vicinity ofyour facility cooling water intake structure; or current impingement mortality and entrainment data collected at your facility.
"Clean Water Washes or Drains" shall mean the draining or washing of equipment and the washing of component surfaces (internal or external), building surfaces, and yard surfaces, consisting of or containing seawater, demineralized water (not containing corrosion inhibitors) or domestic water without the use of any other cleaning chemicals or the presence of any system or subsystem chemical additives except those otherwise authorized for the specific discharge serial number. The equipment or surface to be washed or drained shall be visibly free of liquid chemicals and/or petroleum products.
"Closed-cycle Recirculation System" shall mean a system designed, using minimized makeup and blow-down flows, to withdraw water from a natural or other water source to support contact and/or non-contact cooling uses within the facility. The water is usually sent to a cooling canal or channel, lake, pond or tower to allow waste heat to be dissipated to the atmosphere and then is returned to the system. New source water (make-up water) is added to the system to replenish losses that have occurred due to blow-down, drift and evaporation.
"Critical Test Concentration (CTC)" means the specified effluent dilution at which the Permittee is to conduct a single-concentration Aquatic Toxicity test.
"Daily Concentration" means the concentration ofa substance as measured in a daily composite sample, or, the arithmetic average of all grab sample results defining a grab sample average.
"Daily Quantity" means the quantity ofwaste discharged during an operating day.
"Diel" means daily and refers to variation in organism abundance and density over a 24-hour period due to the influence ofwater movement, physical or chemical changes, and changes in light intensity.
"Domestic Water" shall mean the water, and any constituents that may be in it, as supplied to the MPS from the public water supply system.
"Entrainment" means the incorporation of aquatic organisms, including all life stages offish and shellfish, with intake water flow entering and passing through a cooling water intake structure and into a cooling water system.
"Fire Suppression System Discharges" shall mean the draining, flushing, and/or testing offrre suppression system components utilizing domestic water and/or seawater to assess the operability and integrity ofthese systems.
"Floor Drains Wastewaters" shall include but not be limited to, the draining ofwater to or from floor drains, plant component/systems, incidental leakage from system components such as packing leak from a pump, incidental groundwater in-leakage (e.g., cracks in building foundation),
hydrolazing, and washing with water (domestic water, demineralized water, and seawater). This defmition does not include any chemical spills.
PERMIT # CT0003263 4
"Hydrolazing" shall mean the high pressure surface cleaning ofsystem components utilizing domestic, demineralized, or sea water to clean system components, including the removal of attached biological growth.
"Incidental System Leakage" shall mean once through and/or closed loop cooling water minor leakage from piping, pipe components, valves, flanges, gland seal water, pressure reliefvalves during start up, shut down, plant operation and maintenance activities. Incidental System Leakage shall also include minor leakage offrre water, Millstone pure water treatment system side streams, demineralized water, condensates, domestic water systems, reactor water, primary and secondary system water as a result ofminor leakage from various conveyance systems such as piping, pumps and valves. This defmition does not include any chemical spills.
"Instantaneous Limit" means the highest allowable concentration of a substance as measured by a grab sample, or the highest allowable measurement of a parameter as obtained through instantaneous monitoring.
"Instantaneous Sampling" means a grab sample collected manually, or with automatic equipment, or in-line analysis with automated instrumentation, including but not limited to flow, temperature and pH.
"In stream Waste Concentration (IWC)" means the concentration of a discharge in the receiving water after mixing has occurred in the allocated zone of influence.
"Impingement" means the entrapment of aquatic organisms, including all life stages offish and shellfish, on the intake structure or against a screening device during periods of intake water withdrawal.
"Maintenance wastewaters" shall mean those wastewaters described in this definition and generated as a result ofrepair, replacement, modification, testing, calibration, cleaning, emergency shutdown, draining, filling and/or decommissioning activities. This wastewater may include once through and/or closed loop cooling water, in addition to minor leakage offrre water, Millstone pure water treatment system side streams, demineralized water, condensates, domestic water systems, reactor water, primary and secondary system water as a result ofminor leakage from maintenance on various conveyance systems such as piping, pumps and valves.
"Maximum Daily Limit", means the maximum allowable "Daily Concentration" (defmed above) when expressed as a concentration (e.g. mg/!); otherwise, it means the maximum allowable "Daily Quantity" as defmed above, unless it is expressed as a flow quantity. If expressed as a flow quantity it means "Maximum Daily Flow" as defined in section 22a-430-3(a) ofthe RCSA.
"Moribund" means dying; close to death.
"mg/I" means milligrams per liter.
"mgpd" means million gallons per day.
"NA" as a Monitoring Table abbreviation means "not applicable".
"NR" as a Monitoring Table abbreviation means "not required".
PERMIT # CT0003263 5
"No Observable Acute Effect Level (NOAEL)" means any concentration equal to or less than the critical test concentration in a single concentration (pass/fail) toxicity test conducted pursuant to section 22a-430-3(j)(7)(A)(i) RCSA demonstrating greater than 50% survival oftest organisms in 100% (undiluted) effluent and 90% or greater survival oftest organisms at the CTC.
"OF" means degrees Fahrenheit.
"Quarterly", in the context ofa sampling frequency, means sampling is required in the months of January, April, July and October. Ifthere is no discharge during a sampling month the Pennittee shall report no discharge in the Discharge Monitoring Report (DMR) and sample during the subsequent month when discharge becomes available.
"Range During Sampling" ("RDS"), as a sample type on any parameter, means the maximum and minimum of all values recorded as a result of analyzing each grab sample of; 1) a Composite Sample, or, 2) a Grab Sample Average. Range During Sampling means the maximum and minimum readings recorded with the continuous monitoring device during the Composite or Grab Sample Average sample collection.
"Range During Month" ("RDM"), as a sample type, means the lowest and the highest values ofall ofthe monitoring data for the reporting month.
"Semi-Annual" in the context of a sampling frequency, means sampling is required in the months of January and July. Ifthere is no discharge during a sampling month the Permittee shall report "No Discharge" in the Discharge Monitoring Report (DMR) and sample during the subsequent month when discharge becomes available.
"Sludge Lancing" for the purposes ofthis pennit shall mean the process for cleaning the internal portions ofsteam generators and the associated components. The process utilizes a series of flushes/drains and high pressure washing utilizing demineralized water. Wastewaters are processed through a filtration unit prior to discharge.
"Total Residual Chlorine" means the sum oftotal oxidants as measured by the methods for total residual chlorine approved pursuant to the Code ofFederal Regulations, Part 136 ofTitle 40 (40 CFR 136), or as set forth pursuant to Sections 6 (A)(9) and (10) ofthis permit.
"ug/l" means micrograms per liter.
"Wet lay-up" means a condition where the Steam Generators are filled with water and may, or may not, contain elevated levels ofhydrazine, ammonium hydroxide and/or ethanolamine depending on the need to scavenge oxygen and control pH.
SECTION 3: COMMISSIONER'S DECISION (A) The Commissioner has issued a final detennination and found that continuance ofthe existing systems to treat the discharges would protect the waters ofthe state and continuance ofthe existing discharges would not cause pollution ofthe waters ofthe state. With the issuance ofthis final detennination by the Commissioner emergency authorization Number EAO100176 has expired, and is no longer of any force or effect. The Commissioner's decision is based on Application No.199701876 for pennit reissuance received on June 13, 1997, transferred on March 30, 2001, and including all addenda, correspondence and submittals by MPS and the administrative record established in the processing ofthat application. Accordingly, the Commissioner hereby authorizes the Pennittee to discharge wastewaters in accordance with the provisions PERMIT # CT0003263 6
ofthis permit. This permit also includes detenninations regarding section 316(a) ofthe federal Water Pollution Control Act 33 U.S.C. § I326(a), and compliance with this permit is sufficient to assure the protection and propagation of a balanced indigenous population of shellfish, fish and wildlife in and on the receiving waters. This permit also contains a determination under section 316(b) ofthe federal Water Pollution ControlAct, 33 U.S.C. § 1326(b) and Conn. Gen. Stat. § 22a-430(a). This 316(b) determination is in Section 10(K) ofthis permit.
(B)
The Commissioner hereby authorizes the Permittee to discharge in accordance with the provisions ofthis pennit, the above referenced application, and all approvals issued by the Commissioner or the Commissioner's authorized agent subsequent to the issuance ofthis permit for the discharges and/or activities authorized by, or associated with, this permit.
(C)
The Commissioner reserves the right to make appropriate revisions to the permit in order to establish any' appropriate effluent limitations, schedules of compliance, or other provisions which may be authorized under the Federal Clean Water Act or the CGS or regulations adopted thereunder, as amended. The permit as modified or renewed under this paragraph may also contain any other requirements ofthe Federal Clean Water Act or CGS or regulations adopted thereunder which are then applicable.
SECTION 4: GENERAL EFFLUENT LIMITATIONS AND REQUIREMENTS (A)
No discharge by the Permitte~'s shall contain, or cause in the receiving stream, a visible oil sheen or floating solids, or cause visible discoloration or foaming in the receiving stream.
(B)
No discharge by the Permittee's shall cause acute or chronic toxicity in the receiving water body beyond any zone of influence specifically allocated to that discharge in this permit.
(C)
All samples taken by the Pennittee to comply with this permit shall be comprised ofonly those wastewaters, or a portion ofthose wastewaters, described in the "Wastewater Description" section ofthe tables listed in section 5. Samples for each discharge assigned a serial number shall be collected at the "Monitoring Location Description" for that discharge serial number and shall be collected prior to combination with receiving waters or with wastewaters of any other discharge assigned a serial number. The requirements of this section shall apply, even for wastewaters that can be directed to an alternative pathway pursuant to section 4(H) ofthis permit. All samples collected by the Permittee shall be representative ofthe discharge during standard operating conditions.
(D)
In cases where limits and sample type are specified but sampling is not required by the Permittee in this permit, the limits specified shall apply to all samples which may be collected and analyzed by the Department ofEnvironmental Protection personnel, the Permittee, or other parties.
(E)
The limits imposed on the discharges listed in this permit take effect on the issuance date ofthis permit, hence any sample taken after this date which, upon analysis, shows. an exceedance ofpermit limits will be considered non-compliance.
(F)
The monitoring requirements begin on the date of issuance ofthis permit ifthe issuance date is on or before the 12rl1 day of a month. For permits issued on or after the 13 th day of a month, monitoring requirements begin the 1st day ofthe following month.
(G)
Monitoring and reporting ofradioactive liquid releases are performed in accordance with the applicable 10 CFR 50.36A and 10 CFR 20.130I Appendix B values Table 2 effluent concentrations "Standards for Protection Against Radiation" and 40 CFR 190.
All annual monitoring reports submitted to the Federal Nuclear Regulatory Commission (NRC) shall be sent to Connecticut Department of PERMIT # CT0003263 7
Environmental Protection, Bureau ofAir Management, Radiation Control Division.
(H)
Whenever the Permittee redirects a discharge to an alternative pathway(s) that is specified in a table listed in section 5 ofthis permit, the Permittee shall comply with all requirements, including but not limited to, effluent and flow limits, monitoring, sampling, record-keeping, applicable to both the location in which the discharge originated and the alternative pathway(s). Before redirecting a discharge to an alternative pathway(s), the Permittee shall collect a sample or take any other action that may be necessary to determine compliance with all requirements applicable to the location in which the discharge originated. The Permittee shall also comply with section 22a-430-3(0)(2) ofthe RCSA when discharging at an altemative location. The Pennittee may redirect a discharge to an "alternate pathway" specified in the Tables in Section 5, based upon the following factors:
(a) operational status ofa Unit (start-up, shut down, operational);
(b) a necessity to route process water, not normally radiologically contaminated, to radiological treatment and subsequent discharge when radiological contamination is detected and such action is mandated by Dominion Nuclear Connecticut, Inc. (DNC) administrative controls consistent with NRC requirements; (c) maintenance and/or repair on systems that would preclude use ofthe primary pathway; and (d) discovery of constituent(s) in a discharge that would require removal by another pathway's treatment system in order to preclude a potential permit violation or would otherwise damage plant systems.
(I)
The Permittee is prohibited from discharging polychlorinated biphenyl compounds.
PERMIT # CT0003263 8
SECTION 5: SPECIFIC EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (A) The Pennittee shall ensure that its discharges shall not exceed and shall otherwise conform to the specific terms and conditions listed below. The discharges are restricted by, and shall be monitored in accordance with, the tables below.
(B) The Permittee shall comply with the "Remarks" and "Footnotes" noted in the tables that follow and such footnotes and remarks are enforceable like any other tenn or condition ofthis pennit. The Pennittee shall comply with a remark in such table even when the direction to "See a particular remark" does not appear in the table.
(C) References in the "Remarks" or "Footnotes" section ofthe tables listed in section 5, to maintain certain records on-site, shall mean compliance with the record retention requirements ofRCSA Section 22a-430-3(j)(9)(B).
PERMIT # CT0003263 9
Table A Discharge Serial Number: 001-1 I Monitoring Location: 1 Wastewater
Description:
Discharge Points at Quarry Cut (East & West) from Units 1,2 and 3 including discharges DSN 001A, DSN OOlB, DSN OOIC, DSN 005 and DSN 009; fire suppression system 'discharges and wastewater from de-silting operations from Units 2 and 3 intake structure (Discharge Code 101060z)
Monitoring Location
Description:
Quarry Cut Outlets Discharge is to: Long Island Sound via Quarry Cut FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type Instantaneous Sample//
Sample Type Monthly Daily Limit Reporting or limit or Reporting or Limit Frequency 2 Measurement required range Frequency 2 measurement to be reported to be reported Aquatic Toxicity (Invertebrate) 4 NA NOAEL> I00%
Quarterly Daily NOAEL>IOO%
NA Grab Composite Aquatic Toxicity (Vertebrate) 4 NA NOAEL>100%
Quarterly Daily NOAEL>100%
NA Grab Composite Flow, Average and Maximum 1.6 gpd 2,255,625,000 Weekly//Monthly Daily Flow NA NR NA Flow, Total (Day of Sample Collection) gpd NA 2,255,625,000 WeeklY//Monthly Daily Flow NA NR NA pH, continuous (see remark 1)
S.U.
NA NA NR
,NA 6.0 to 9.0 Hourly ROM Free Available Chlorine 5 mg/l NA NA NR NA Weekly Grab Temperature (see remark 2) of NA NA NR NA 105.0 Hourly Instantaneous Temperature, intake/outlet differential (see remark of NA NA NR NA 32.0 Hourly Instantaneous 12)
Total Residual Chlorine 5 mg/l NA NA NR NA 0.1 Weekly Grab Turbidity (see remark 9)
NTU NA NA NR NA Daily Grab Turbidity differential (see remark 9)
NTU.
NA NA NR NA 5.0 Daily Grab 10 PERMIT # CT0003263
Table A Footnotes and Remarks:
Footnotes:
I For this parameter the Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Average Monthly Flow and the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
4 See Section 7 for additional aquatic toxicity requirements and Tables II and J1.
5 Chlorine monitoring shall be conducted during time periods when chlorine is being added at one of the condensers for biofouling control in accordance with Table A, remark (6).
6 See Section 10(B) for alternative flow limitations during winter flounder entrainment season.
Remarks:
(1)' The pH ofthe discharge shall not be less than 6.0 nor greater than 9.0 Standard Units at any time, shall be monitored on a continuous, hourly basis, and reported on a monthly basis. The pH range for each month is defined as the highest and lowest single pH reading during all operating days ofthe month including periods when sampling is not performed. The Permittee shall monitor pH and temperature manually every four hours whenever the automated equipment malfunctions or is out ofservice for maintenance.
(2)
The maximum temperature of the discharge shall be 105°F. The Permittee shall report the maximum temperature ofthe discharge and the maximum temperature increase for each month.
(3)
The temperature of any discharge shall riot increase the temperature ofthe receiving waters above 83°F, or, in any case, raise the temperature ofthe receiving waters by more than 4 OF. For purposes ofthese conditions, cognizance will be given to reasonable time and distance to allow mixing ofthe effluent and receiving waters, but the boundary of the mixing zone for the: (i) increase in temperature ofthe receiving waters above 83°F; and (ii) the 4 OF rise in temperature shall not exceed a radius of 8,000 feet from the discharge outlet at the quarry cuts.
(4)
The thermal plume allowed within the permissible mixing zone as defined by these conditions shall not block zones offish passage.
. (5)
The discharge and operation of all facilities shall not alter significantly the color, turbidity, taste, odor or levels of coliform bacteria from ambient levels in the receiving waters; nor shall the level of dissolved oxygen in the receiving waters fall below 6.0 mg/l as a result of such discharge.
PERMIT # CT0003263 11
(6)
Chlorine shall not be discharged in the condenser cooling water of more than one unit at anyone time or for more than two hours per unit in anyone day.
(7)
The discharge shall contain no other chemical constituents in concentrations which are harmful to human, animal or aquatic life, or which make the receiving waters unsafe or unsuitable for fish or shellfish or their propagation, impair the palatability of same, or impair the waters for other uses.
(8)
The Permittee shall maintain onsite the following data:
Daily range of pH Daily range offlow Daily maximum temperature (OF)
Daily minimum temperature (OF)
Daily average temperature ("F)
Daily maximum temperature increase (OF)
Daily minimum temperature increase (OF)
Daily average temperature increase (OF)
(9)
Turbidity monitoring is only required on days when desilting operations wastewater from either Unit 2 or Unit 3 is discharged to the Quarry. The background sample for turbidity to determine compliance with the effluent limitation shall be a grab sample from the vicinity ofthe Millstone Harbor or the Environmental Laboratory Boat Dock.
(10) The report shall include a detailed explanation of any violations of the limitations specified above.
(11) The Permittee shall maintain all free available chlorine and total residual chlorine analytical data on-site and shall report on the DMR the lowest and highest values for the month.
(12) The differential temperature increase at the Quarry Cut above the intake water temperature under unusuai conditions may be increased to 44 OF for a period not exceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. In the event the temperature differential exceeds 32 OF, the Department ofEnvironmental Protection shall be notified at once or by the next working day and a written report filed within 5 working days. During the reduced intake flow period specified in Section ID(C) of this permit, the differential temperature shall not exceed 41°F.
PERMIT # CT0003263 12
TABLEB I Monitoring Location: 1 Discharj~e Serial Number: 001A Wastewater
Description:
Unit 1 Miscellaneous Decommissioning Wastewaters from Sumps: batch discharge comprised ofwastewaters from various Unit 1 sumps including groundwater, roof drains, cooling water (either demineralized plant makeup water or domestic water), system leakage, component makeup water, domestic water, fire suppression system water, sample collection wastewater, wastewater from maintenance activities, incidental leakage during operation and maintenance activities, system drain downs, and the Unit 1 evaporator system storage tanks (including wastewater from DSNs 00IB-2, 00IB-3, 001 C-2, 00.lC-3 and stack sump water that may be directed to this storage tank as an alternate pathway in accordance with Section 4 (H) above). Unit 1 decommissioning and safe store system waters may be directed to this discharge from the Unit 1 spent fuel pool, Unit 1 spent fuel pool cooling system, and from draining and flushing from decontamination of MP1 plant components. (Discharge Code: 153000N)
Monitoring Location
Description:
Immediately following treatment; sample tap offthe effluent sample pump. (Discharge Code 117000n)
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 measurement to be reported Flow, Total gpd NA 40,000 Monthly Daily Flow NA NR NA Flow, Maximum 1 gpd 40,000 Daily Daily Flow NA NR NA Oil & Grease, Total mgll NA NA NR NA 15.0 Quarterly Grab pH S.u.
NA NA NR NA 6.0 to 9.0 Weekly Grab Ethanolamine mg/I NA NA NR NA Weekly Grab Chlorodifluoromethane 4 mg/I NA NA NR NA Weekly Grab Dichlorodifluoromethane 5 mg/I NA NA NR NA Weekly Grab Hydrazine mg/I NA NA NR NA Weekly Grab Boron mg/I NA NA NR NA Weekly Grab Lead mg/I NA NA NR NA Weekly Grab Nickel mg/I NA NA NR NA Weekly Grab Total Suspended Solids mg/I NA NA NR NA 30.0 Quarterly Grab Zinc, Total mg/I NA NA NR NA 1.0 Weekly Grab PERMIT # CT0003263 13
Table B Footnotes:
I The Pennittee shall maintain at the facility a record of the total flow for each day ofdischarge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. lfthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. lfthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
4 Sampling analysis shall consist ofthe total measurement ofchlorodifluoromethane concentration.
5 Sampling analysis shall consist ofthe total measurement ofdichloroditluoromethane concentration.
PERMIT # CT0003263 14
TABLEC I Monitoring Location: I Discharge Serial Number: OOIB I
Wastewater
Description:
Unit No.2 Discharge, including DSNs 00IB-1 through 001B-I1: Unit 2 condenser non-contact cooling water and service water, intake pump seal and lubricating water, miscellaneous cooling water system leakage and drainage, hydrolazing, drainage of plant systems and components during start-up, shutdown, plant operation, incidental system leakage and maintenance wastewater, intake bay maintenance and dewatering activities, service water strainer backwash, intake desilting wastewater (Discharge Code 10I060Z)
Monitoring Location
Description:
Mouth ofdischarge tunnel OOIB, which feeds into the quarry Discharge is to: Long Island Sound via Quarry Cut FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample!!
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Average and Maximum I gpd 844,652,000 Continuous Daily Flow NA NR NA Flow, Total gpd NA 844,652,000 Weekly Daily Flow NA NR NA pH, Continuous (see remark I)
S.U.
NA NA NR NA 6.0 to 9.0 Hourly RDM Chlorine, Free Available mg/I NA NA NR NA 0.25 Weekly Grab Hydrazine mg!1 NA NA NR NA Monthly Grab Molybdenum mg/I NA NA NR NA Quarterly Grab Temperature, intake and outlet differentiat(see OF NA NA NR NA 32.0 Hourly Instantaneous remarks 2 and 6)
PERMIT # CT0003263 15
Table C Footnotes and Remarks:
Footnotes:
I For this parameter the Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Average Monthly Flow and the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(l)
The Permittee shall report the highest and lowest single pH and temperature reading ofthe month including periods when sampling is not performed. The Permittee shall monitor pH and temperature manually every four hours whenever the automated equipment malfunctions or is out ofservice for maintenance.
(2)
The differential temperature increase at the Unit 2 discharge above the intake water temperature shall not exceed 32°F during full condenser cooling water flow operations and shall not exceed 44"F for more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> due to pump failure or maintenance. During reduced flow due to extended (more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) pump outage or maintenance, the delta T shall not exceed 38°F with a corresponding limit of 44°F for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> due to failure or maintenance ofan additional pump. During the reduced intake flow period specified in_Section lO(C) ofthis permit, the delta T shall not exceed 46°F during periods of reduced flow with a corresponding limit of 48°F for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> due to pump failure or maintenance.
(3) Free available chlorine shall not be discharged in the condenser cooling water for more than two hours in anyone day. Free available chlorine shall not be discharged in the condense'r cooling water ofmore than one unit at anyone time. Whenever the Unit 2 circulating water system is operating, weekly monitoring offree available chlorine shall be performed when chlorination ofcondenser cooling water occurs.
(4) The Permittee shall maintain all free available chlorine analytical data onsite and shall report on the DMR the lowest and highest values for each month.
(5) The Permittee shall maintain onsite the following data:
Daily range ofpH Daily range offlow Daily maximum temperature (OF)
Daily minimum temperature (OF)
Daily average temperature (OF)
Daily maximum temperature increase (OF)
Daily minimum temperature increase (OF)
Daily average temperature increase (OF)
(6) Routine operating procedures include the elevation ofthe intake water temperature on each condenser by a thermal backwash process required for the control ofsea mussels and a condenser backfIush process for the removal ofdebris during and/or after storm events or following thermal backwashes. The true temperature difference between the intake water and discharge water into the Quarry shall be allowed to exceed the permit limit for very brief periods (Le. a maximum offour hours per intake bay per backwash) during these backwash/backfIush procedures.
PERMIT # CT0003263 16
TABLED I Monitorinll Location: I Discharge Serial Number: OOIB-l Wastewater
Description:
Unit No.2 Steam Generator blowdown tanks and blowdown generated during open cycle Steam Generator blowdown during startup, standby, hot standby, operation and shutdown.
In accordance with Section 4 (H), DSN OOIB-l(a) may be redirected to this alternative location during maintenance activities. (Discharge Code 101060N)
Monitorinl!: Location
Description:
Turbine Building sample tap for either Steam Generator, Auxiliary Building Primary Sample Room Valves, or RecirculationlPump Down Skid Sample Valve.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2
. Measurement to be reported Flow, Average and Maximum I gpd 1,440,000 Weekly/lMonthly Daily Flow NA NR NA Flow, Total (Day of Sample Collection) gpd NA 1,440,000 Weekly/lMonthly Daily Flow NA NR NA Ammonia as Nitrogen mg/I NA NA NR NA Quarterly Grab Ammonia as Nitrogen kg/day NA NA NR NA Quarterly Grab Nitrate mg/I NA NA NR NA Quarterly Grab Nitrite mg/I NA NA NR NA Quarterly Grab Total Kjeldahl Nitrogen (TKN) mg/l NA NA NR NA Quarterly Grab pH S.U.
NA NA NR NA Weekly Grab Ethanolamine mg/I NA NA NR NA Monthly Grab Hydrazine mg/l NA NA NR NA Weekly Grab Oil and Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Boron mg/l NA NA NR NA Quarterly Grab PERMIT # CT0003263 17
Table D Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
Z The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) Grab sample shall be a flow proportional composite ofgrab samples ofall Unit 2 Steam Generators in use at the time ofsampling.
PERMIT # CT0003263 18
TABLEE I Monitoring Location: 1 Discharge Serial Number: OOIB-l(a)
Wastewater
Description:
Unit No.2 Steam Generator Secondary Side Wet Layup Discharge: Steam Generators system drainage for maintenance, chemical control and startup, hot standby, and hot shutdown blowdowns and/or Quench tank and sludge lancing (Discharg;e Code l17000N)
Monitoring Location
Description:
Turbine Building sample tap for each Steam Generator, Auxiliary Building primary sample room valves, or recirculation/pumpdown skids sampling valves.
For Sludge lancing: After the filtration unit FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or Reporting or Frequency 2 be reported required Frequency 2 Measurement range to be reported Hydrazine mgtl NA NA NR NA 125.0 Weekly Grab Ethanolamine (see remark 2) mgtl NA NA NR NA Monthly Grab Flow, Maximum I (see remark 3) gpd NA 280,000 Daily/lMonthly Daily Flow NA NR NA Copper, Total (see remark 1) mgtl NA NA NR NA Quarterly Grab Iron, Total (see remark 1) mgtl NA NA NR NA Quarterly Grab Lead, Total (see remark 1) mg!l NA NA NR NA Quarterly Grab Nickel, Total (see remark 1) mgtl NA NA NR NA Quarterly Grab Oil & Grease, Total (see remark 1) mgtl 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Total Suspended Solids (see remark 1) mgtl 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Zinc, Total (see remark 1) mgtl NA NA NR NA Quarterly Grab PERMIT # CT0003263 19
Table E Footnotes and Remarks:
Footnotes:
1 The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'RepOliing Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I) The Permittee shall sample sludge lancing wastewater after filtration at least once per year for the following pollutants: copper, iron, lead, nickel, oil & grease, total suspended solids and zinc.
(2) Sampling and analysis for ethanolamine is only required when ethanolamine is being added to the Steam Generator in wet lay up.
(3) Only one unit may discharge secondary side wet lay up drainage at anyone time.
PERMIT # CT0003263 20
TABLEF I Monitoring Location: I Discharge Serial Number: 001B-2 Wastewater
Description:
Unit No.2 Aerated Waste Monitor Tan!c Discharge: wastewaters from the Reactor Building, Radiological Controlled Areas, Turbine Building sumps, Auxiliary Building sumps, Chemistry Laboratory drains and coolant waste wastewaters (from DSN 00lB-3) directed to DSN 00lB-2 during startup, shutdown, operation, incidental system leakage and maintenance, Unit 1 and Unit 2 radiologically contaminated wastewaters. Unit 3 Auxiliary Boiler system leakage and drains from maintenance activities, Steam Generator blowdown, roof drains, groundwater, domestic water, and plant makeup water (pure water). Also, an alternative pathway for Steam Generator blowdown, sludge lancing and wet lay-up via a containment sump that is normally directed to DSN 00 IB-1 and 00 IB-1(a).
RBCCW that is normally directed to DSN 001B-9 may be directed to this discharge via the RBCCW sump during maintenance activities, if radiologically contaminated. In accordance with Section 4(H),
wastewaters including service water drains may be redirected to this location from DSNs OOIA, OOIB-I, OOlB-I(a), 00IB-2(a), 00lB-2(b), 00lB-3, 00IB-5, 00lB-9, OOlB-II, stack sump water and Unit 2 Turbine Building sumps. (Discharge Code 117000N)
Monitoring Location
Description:
Sample valve in auxiliary building primary sample room or sample valves on recycle/mixing piping leg of discharge pump for aerated waste monitoring tank.
FLOWITIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level UNITS Test 3 PARAMETER Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit RepOiting Measurement to limit orrequired Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum J gpd NA 15,000 Daily/lMonthly Daily Flow NA NR NA Ethanolamine mg/I NA NA NR NA Monthly Grab Hydrazine mg/I NA NA NR NA Weekly Grab pH S.u.
NA NA NR NA Weekly Grab Boron mg/I NA NA NR NA Quarterly Grab Molybdenum (see remark I) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab PERMIT # CT0003263 21
Table F Footnotes and Remarks:
Footnotes:
1 The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(I) A molybdenum sample shall be collected and analyzed during any closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 22
TABLEG I Monitoring Location: 1 Discharge Serial Number: 00lB-2(a)
Wastewater
Description:
Unit No.2 Steam Generator Chemical Cleaning and Chemical Decontamination Wastewaters Discharge (Discharge Code 101070n)
Monitoring Location
Description:
DSN 00lB-2 or DSN 00lB-3 discharge monitoring location (See Section 10 Paragraph B ofthis permit)
Maximum Frequency of Discharge: Approximately 30 days during an outage Expected Frequency: One activity per year FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Boron, Total mg/l Weekly Daily Composite NA NR NA Copper, Total mg/l 1.0 1.0 Weekly Daily Composite 1.5 NR NA Iron, Total mg/I 1.0 1.0 Weekly Daily Composite 1.5 NR NA Cadmium, Total mg/I 0.1 0.5 Weekly Daily Composite 0.75 NR NA Chromium, Total mg/I 1.0 2.0 Weekly Daily Composite 3.0 NR NA Flow, Maximum I gpd NA 60,000 Monthly Daily Flow NA NR NA Hydrazine mg/I Weekly Daily Composite NA NR NA Lead, Total mglI 0.1 0.5 Weekly Daily Composite 0.75 NR NA Molybdenum (see remark I) mg/I Weekly Daily Composite NA NR NA Nickel, Total mg/l 1.0 2.0 Weekly Daily Composite NA NR NA Zinc, Total mg/I 1.0 2.0 Weekly Daily Composite 3.0 NR NA pH S.U.
NA NA NR NA 6-9 Weekly Grab Total Suspended Solids mg/l 20.0 30.0 Weekly Daily Composite 30.0 NR NA Oil & Grease, Total mg/I 10.0 15.0 Weekly Grab Sample 15.0 NR NA Average PERMIT # CT0003263 23
Table G Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph CA) ofthis permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed weekly during closed cooling system drainage ifmolybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 24
TABLEH I Monitoring Location: 1 Discharge Serial Number: 00lB-3 Wastewater
Description:
Unit No.2 Coolant Waste Monitor Tank Discharge: wastewater from the Auxiliary Building, Reactor Building and Reactor Coolant sumps, Aerated Waste Monitoring Tanks, aerated waste collected in the Coolant Waste Monitoring Tanks, and other radiological controlled areas during plant startup, operation, shutdown, incidental system leakage and maintenance, Unit 1 and Unit 2 radiologically contaminated wastewaters. Unit 3 Auxiliary Boiler system leakage and drains from maintenance activities, Steam Generator blowdown, groundwater in-leakage and roof drains and domestic water. In accordance with Section 4 (H), wastewaters may be redirected to this location from DSN OOlB-l (Steam Generator blowdown, sludge lancing, and wet lay-up), DSN OOlB-I(a), the aerated waste drain tank (and all its inputs), DSNs 00 lA, 00IB-2, 00IB-2(a), 00lB-2(b), 00lB-9, OOlB-II, stack sump water and Unit 2 Turbine Building sumps. (Discharge Code 1I7000N)
Monitoring Location
Description:
Sample valve in auxiliary building primary sample room on discharge piping ofcoolant waste tank(s) discharge pump FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Samplell Sample Type or Instantaneous Samplell*
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported "range Frequency 2 Measurement to be reported Flow, Maximum I gpd NA 90,000 DailyIIMonthly Daily Flow NA NR NA Ethanolamine mg/l NA NA NR NA Monthly Grab Hydrazine mg/l NA NA NR NA Weekly Grab pH S.U.
NA NA NR NA Weekly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Boron mwl NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Table H Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' ismonthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 25
TABLE I I Monitoring Location: I Dischar2e Serial Number: 00lB-5 Wastewater
Description:
Unit No.2 Auxiliary Heat Exchanger: service water discharge, including pump lubrication water, pump seal water, hydrolazing wastewaters, circulating water and service water system drainage during startup, shutdown, plant operation, incidental system leakage, and maintenance (Discharge Code 102000N)
Monitoring Location
Description:
Turbine Building closed cooling heat exchangers service water sampling valve, Reactor Building closed cooling heat exchangers service water discharge piping manifold sampling valve, emergency diesel service water line sampling valve, or auxiliary building service water sample valves.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level UNITS Test 3 PARAMETER Average Maximum Samplell Sample Type or Instantaneous Samplell Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2
_be reported range Frequency 2 Measurement to be reported Flow, Average and Maximum I gpd 51,840,000 Weekly Daily Flow NA NR NA Flow, Total (Day of Sample Collection) gpd NA 51,840,000 WeeklyllMonthly Daily Flow NA NR NA Chlorine, Free Available (see remarks) mgtl NA NA NR NA 0.25 Weekly See remark 2 below Table I Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Average Monthly Flow and Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) The Permittee shall maintain all free available chlorine analytical data on-site and shall report on the DMR the lowest and highest values for the month.
(2)
Grab samples for free available chlorine monitoring shall be composed of a flow proportioned average ofthe operating service water trains.
PERMIT # CT0003263 26
TABLEJ I Monitoring Location: 1 Discharge Serial Number: 001B-6 Wastewater
Description:
Condensate Polisher Regeneration Wastewater Neutralization Tank Discharge: Unit 2 Condensate Polishing Facility operation including system area floor drains, vents, incidental leakage, and maintenance activity wastewater, resin regeneration and drain wastewater, condensate system polisher wastewater, fire water, waste evaporator feed tank water, service water (seawater), Unit 3 Auxiliary Boiler system steam and drainage from condensate recovery tank, domestic water, hot water heating system drainage, plant equipment domestic water washwater, feed water and condensate system drainage (secondary system), air conditioner and air compressor condensate drains, condenser pit sumps, condenser pit sumps GAC filter backwash, Steam Generator drainage from wet lay-up during startup, shutdown, plant operation, incidental system leakage, and maintenance. This discharge is essentially a batch discharge; however, some ofthe minor inputs are continuous.
Continuous inputs include domestic water inputs from pump and fan seal water and sample sink drains.
In accordance with Section 4 (H), DSN 0018-I(a) and condenser pit sumps may be redirected to this alternative location during plant operation and maintenance activities. (Discharge Code 106000N)
Monitoring Location
Description:
Sample valves in the Condensate Polishing Facility on the filter outlet.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample/!
Sample Type or Instantaneous Sample/!
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum 1 gpd NA 75,000 Daily/lMonthly Daily Flow NA NR NA Ammonia as Nitrogen mg/I NA NA NR NA
.Monthly Grab Ammonia as Nitrogen kg/day NA NA NR NA
. Monthly Nitrate mg/I NA NA NR NA Quarterly Grab Nitrite mg/I NA NA NR NA Quarterly Grab Total Kjeldahl Nitrogen (TKN) mg/l NA NA NR NA Quarterly Grab Hydrazine mg/I NA NA NR NA 37.5 Weekly Grab Ethanolamine mg/l NA NA NR NA Monthly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Boron mg/I NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab pH S.U.
NA NA NR NA 6.0 to 9~0 Weekly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Zinc, Total mg/I NA NA NR NA Quarterly Grab PERMIT # CT0003263 27
~.,
Table J Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 28
TABLEK I Monitoring Location: 1 Discharge Serial Number: 00lB-8 Wastewater
Description:
Unit No.2 Condenser Hotwell Discharge during start-up, shutdown, plant operation, incidental system leakage, and maintenance: Steam Generator(s) system drains during Unit 2 outages, drainage from feedwater and condensate systems, secondary system drainage including wet lay-up and Turbine Building drains during maintenance activities, incidental system leakage and maintenance activities including hydrolazing. DSN 001 B-1 and DSN 001B-1(a) may be redirected to this alternative location in accordance with Section 4(H) (Discharge Code 117000N)
Monitoring Location
Description:
Sample valves on the discharge piping ofthe condensers or sample valves on the discharge piping ofthe condensate pumps.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum 1 gpd NA 250,000 Daily/lMonthly Daily Flow NA NR NA Hydrazine mg/I NA NA NR NA Monthly Grab pH S.U.
NA NA NR NA Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Ethanolamine mg/I NA NA NR NA Monthly Grab Boron mg/I NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Table K Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 29
TABLEL I Monitoring Location: 1 Discharge Serial Number: 001B-9 Wastewater
Description:
Unit No.2 Closed Cooling Water System Drainage: Turbine Building, Reactor Building closed cooling water drainage, chilled water system drainage, hydrolazing wastewaters, domestic water, demineralized water, service water and incidental system leakage during startup, plant operation, and maintenance. In accordance with Section 4 (H), DSNs 00lB-5, 00lB-8 and 001B-ll may be redirected to this alternative location. (Discharge Code 102000N)
Monitoring Location
Description:
Sample valves for reactor or Turbine Building sample sink, Turbine Building closed cooling water heat exchangers sample valves; Reactor Building closed cooling water heat exchangers sample valves, chilled water heat exchanger sample valves, or chilled water pump discharge sample valves.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum I gpd NA 30,000 Daily/lMonthly Daily Flow NA NR NA Chlorodifluoromethane (see remark 1) mg/l NA NA NR NA Monthly Grab Dichlorodifluoromethane (see remark I) mg/l NA NA NR NA Monthly Grab Ethanolamine (see remark 3) mg/l NA NA NR NA "Monthly Grab Hydrazine (see remark 4) mg/l NA NA NR NA Weekly Grab Molybdenum (see remark 2) mg/l NA NA NR NA Quarterly Grab Table L Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day ofdischarge and shall report the Maximum Daily Flow for each month.
2 The first entry in this colunm is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'RepOlting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I)
Sampling for chlorodifIuoromethane and dichlorodifIuoromethane is required when discharging closed cooling water system drainage.
(2)
A molybdenum sample shall be collected and analyzed during closed cooling system drainage ifmolybdenum is being used as a corrosion inhibitor.
(3)
Ethanolamine sample shall be collected and analyzed ifethanolamine is being used.
(4)
Hydrazine sample shall be collected and analyzed ifhydrazine is being used.
PERMIT # CT0003263 30
TABLEM I Monitorinl!:Location: 1 Discharge Serial Number: OOlB-lO Wastewater
Description:
Unit NO.2 - 16 inch standpipe discharge to the circulating water tunnel including Unit No.2 Feedwater heaters shell & tube side drains, water box priming pumps, groundwater leakage, circulating water leakage, alternative pathway for the redirection ofDSNOOlB-8 (condenser hotwells) DSN OOlB-S and DSN 001B-9 (TBCCW and chill water drainage), auxiliary feed water pump room sump discharge, Unit 2 feed and condensate drains, floor drains, Turbine Building closed cooling water, chilled water, de-icing pit sump, condenser pit sumps, mechanical vacuum pumps, secondary sample sink cooling water, auxiliary steam and condensate recovery, incidental system leakage during startup, shutdown, plant operation and maintenance, seal water and hydrolazing wastewater. DSNs 001B-5, 001B-8, 001B-9 and condenser pit sumps may be redirected to this alternative location only in accordance with Section 4 (H).
(Discharge Code 106000N)
Monitorinl!: Location
Description:
Dip sample of discharge water from the Turbine Building sump or sample of source water being discharged to standpipe.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly.Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Average and Maximum I gpd 150,000 Daily//Monthly Daily Flow NA NR NA Hydrazine mg/I NA NA NR NA Weekly Grab pH S.u.
NA NA NR NA Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Ethanolamine mg/I NA NA NR NA Monthly Grab Ammonia - Nitrogen mg/I NA NA NR NA Monthly Grab Boron mg/l NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average PERMIT # CT0003263 31
Table M Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'SampleFrequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 32
TABLEN I Monitoring Location: 1 Discharge Serial Number: OOlB-II Wastewater
Description:
Unit No.2 service water drainage and incidental system leakage from the Reactor Building closed cooling water (RBCCW) system, hydrolazing wastewater, floor drains, auxiliary building sumps, domestic washwater, RBCCW relief valve discharges, during startup, shutdown, plant operation, and maintenance and DSN 001B-9 may be redirected to this alternative location in accordance with Section 4 (H).
(Discharge Code 106000N)
Monitoring Location
Description:
Auxiliary Building Sump FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level UNITS Test 3 PARAMETER Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Average and Maximum I gpd 150,000 Daily//Monthly Daily Flow NA NR NA Hydrazine (see remark 3) mg/I NA NA NR NA WeeklY Grab pH S.U.
NA NA NR NA Weekly Grab Ethanolamine (see remark 2) mg/I NA NA NR NA Quarterly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Boron mg/l NA NA NR NA Quarterly Grab Molybdenum (see remark I) mg/l NA NA NR NA Quarterly Grab Oil & Grease, Total mg/l 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average PERMIT # CT0003263 33
Table N Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day ofdischarge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(1)
A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
(2)
Ethanolamine sample shall be collected and analyzed ifethanolamine is being used.
(3)
Hydrazine sample shall be collected and analyzed ifhydrazine is being used.
PERMIT # CT0003263 34
TABLE 0 I Monitoring Location: I Discharge Serial Number: OOIC Wastewater
Description:
Unit 3 discharge, including DSNs OOIC-I through 00IC-9, Non-contact cooling water discharge from Unit 3 circulating water pumps/condenser system, service water, intake pump operation discharges (seal, lube and strainer backwash water) returned to intake bays, and miscellaneous cooling water system leakage and drainage of plant systems and components during plant start up, shut down, plant operation, incidental system leakage and maintenance wastewater, intake desilting wastewater, intake bay maintenance and dewatering activities. (Discharge code 101060Z)
Monitoring Location
Description:
Dip sample from the mouth of discharge tunnel OOI-C, which feeds into quarry FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level UNITS Tese PARAMETER Average Maximum Daily Sample/lReporting Sample Type Instantaneous Sample//
Sample Type Monthly Limit Frequency 2 or limit or required Reporting or Limit Measurement range Frequency 2 Measurement to be reported to be reported Flow, Average and Maximum 1 gpd 1,410,933,000 Continuous/lMonthly Daily Flow NA NR NA Flow, Total (Day of Sample Collection) gpd NA 1,410,933,000 Weekly/lMonthly Daily Flow NA NR NA pH (see remark I)
S.U.
NA NA NR NA 6.0 - 9.0 Hourly ROM Chlorine, Free Available mg/I NA NA NR NA 0.25 Weekly Grab Hydrazine mg/I NA NA NR NA Monthly Grab Molybdenum mg/I NA NA NR NA Quarterly Grab Temperature, intake/outlet differential (see remarks OF NA NA NR NA 28.0 Hourly Instantaneous 2 and 6)
PERMIT # CT0003263 35
Table 0 Footnotes and Remarks:
Footnotes:
I For this parameter the Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Average Monthly Flow and the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I) The Permittee shall report the highest and lowest single pH and temperature reading of the month including periods when sampling is not performed. The Permittee shall monitor pH and temperature manually every four hours whenever the automated equipment malfunctions or is out ofservice.
(2) The differential temperature increase at the Unit 3 discharge above the intake water temperature shall not exceed 28°F during full condenser cooling water flow operations and shall not exceed 30°F for more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> due to pump failure or maintenance. During reduced flow due to extended (more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) pump outage or maintenance, the delta T shall not exceed 30°F with a corresponding limit of 36°F for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> due to failure or maintenance ofan additional pump. During the reduced intake flow period specified in Section IO(C) ofthis permit, the delta T shall not exceed 38°F during periods of reduced flow with a corresponding limit of40°F for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> due to pump failure or maintenance.
(3) Free available chlorine shall not be discharged in the condenser cooling water for more than two hours in anyone day. Free available chlorine shall not be discharged in the condenser cooling water ofmore than one unit at anyone time. Whenever the Unit 3 circulating water system is operating, weekly monitoring offree available chlorine shall be performed when chlorination of condenser cooling water occurs.
(4) The Permittee shall maintain all free available chlorine analytical data onsite and shall report on the DMR the lowest and highest values for each month.
(5) The Permittee shall maintain onsite the following data:
Daily range ofpH.
Daily range offlow Daily maximum temperature (OF)
Daily minimum temperature (OF)
Daily average temperature (OF)
Daily maximum temperature increase (OF)
Daily minimum temperature increase (OF)
Daily average temperature increase (OF)
(6) Routine operating procedures include the elevation ofthe intake water temperature on each condenser by a thermal backwash process required for the control ofsea mussels and a condenser backflush process for the removal ofdebris during and/or after storm events or following thermal backwashes. The true temperature difference between the intake water and discharge water into the Quarry shall be allowed to exceed the permit limit for very brief periods (I.e. a maximum of four hours per intake bay per backwash) during these backwash/backflush procedures.
PERMIT # CT0003263 36
TABLEP I Monitoring Location: 1 Discharge Serial Number: OOlC-l Wastewater
Description:
Unit 3 Steam Generator blowdown tanks and blowdown generated during open cycle Steam Generator blowdown during startup, standby, hot standby, operation and shutdown.
DSN OOIC-I(a) may be redirected to this alternative location per Section 4 (H) ofthis permit.
(Discharge Code101060N)
Monitoring Location
Description:
Auxiliary building primary sink sample valve tapped from the Steam Generator blowdown (~D) piping, or secondary sample sink tapped from the BD line in the Unit 3 Turbine Building, or BD sample filters inlet drain valve also in the Unit 3 auxiliary building.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum 1 gpd NA 1,400,000 Weekly/lMonthly Daily Flow NA NR NA Flow, Total (Day of Sample Collection) gpd NA 1,400,000 Weekly//Monthly Daily Flow NA NR NA pH S.U.
NA NA NR NA Weekly Grab Ammonia as Nitrogen mg/I NA NA NR NA Quarterly Grab Ammonia as Nitrogen kg/day NA NA NR NA Quarterly Grab Nitrate mg/I NA NA NR NA Quarterly Grab Nitrite mg/I NA NA NR NA Quarterly Grab Total Kjeldahl Nitrogen (TKN) mg/I NA NA NR NA Quarterly Grab Ethanolamine mg/I NA NA NR NA Monthly Grab Hydrazine mg/I NA NA NR NA Weekly Grab Oil and Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Boron mg/I NA NA NR NA Quarterly Grab PERMIT # CT0003263 37
Table P Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(I) Grab sample shall be a flow proportional composite of grab samples ofall Unit 3 Steam Generators being used.
PERMIT # CT0003263 38
TABLEQ I Monitoring Location: I Discharge Serial Number: OOIC-l(a)
Wastewater
Description:
Unit 3 Steam Generator (4) wet lay up drainage for maintenance, plant start up and shut down, chemical control and sludge lancing (Discharge Code 117000N)
Monitoring Location
Description:
Sampling valve on the wet lay up recirculation pump skid discharge piping and drain valve for each Steam Generator recirculation header in the Unit 3 containment building, or the main steam valve building discharge header.
For SludQ"e LancinQ": After the filtration unit FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Samplell Sample Type or Instantaneous Samplell Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum I (see remark 3) gpd NA 576,000 DailyllMonthly Daily Flow NA NR NA Hydrazine mg/I NA NA NR NA 125.0 Weekly Grab Ethanolamine (see remark 2) mg/I NA NA NR NA Monthly Grab Nickel, Total (see remark 1) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total (see remark 1) mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average pH S.U.
NA NA NR NA Weekly Grab Total Suspended Solids (see remark 1) mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Iron, Total (see remark 1) mg/I NA NA NR NA Quarterly Grab Lead, Total (see remark 1) mg/I NA NA NR NA Quarterly Grab Copper, Total (see remark I) mglI NA NA NR NA Quarterly Grab Zinc, Total (see remark 1) mg/I NA NA NR NA Quarterly Grab PERMIT # CT0003263 39
Table Q Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I) The Permittee shall sample sludge lancing wastewater after filtration at least once per year for the following pollutants: copper, iron, lead, nickel, oil & grease, total suspended solids and zinc.
(2) Sampling for ethanolamine is only required when ethanolamine is being added to the Steam Generator in wet layup.
(3) Only one unit may discharge secondary side wet lay up drainage at anyone time.
PERMIT # CT0003263 40
TABLER I Monitoring Location: I Discharge Serial Number: 001C-2 Wastewater
Description:
Unit No.3 Radiation Waste Test Tank Discharge: Waste Test Tanks and Boron Test Tanks including wastewater from areas within the Auxiliary Building, Auxiliary Boiler, Steam Generator blowdown, sludge lancing, wet lay-up, Reactor Building and othe!" radiologically controlled areas and various sumps located within the Unit 3 Turbine Building, Chemistry Laboratory drains, during plant start up, shut down, operation, maintenance and incidental system leakage. In accordance with Section 4 (H) ofthis permit, DSN OOIC-I, 001 C-I (a), 00IC-3, 001C-9 and the Unit 3 Turbine Building Sump may be redirected to this alternative discharge location. (Discharge Code 153000N)
Monitoring Location
Description:
Boron Test Tanks sampled from the primary sample sink or from the Boron Test Tank recirculation pump discharge. Waste Test Tanks sampled from the liquid waste sample sink or from the Waste Test Tank recirculation pump discharge.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//
Sample Type or Instantaneous Sample!!
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 measurement to be reported Flow, Maximum I gpd NA 50,000 Daily//Monthly Daily Flow NA NR NA Dirnethyldithiocarbamate (see remark 2) mg/I NA NA NR NA Monthly Grab Ethanolamine mg/I NA NA NR NA Monthly Grab Hvdrazine mg/I NA NA NR NA Weekly Grab Dirnethylamine (see remark 2) mg/I NA NA NR NA Monthly Grab Boron mg!1 NA NA NR NA Quarterly Grab Molvbdenurn(see remark I) mg/l NA NA NR NA Quarterly Grab Oil & Grease, Total mg/l 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average pH S.U.
NA NA NR NA Weekly Grab Total Suspended Solids mgll 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab PERMIT # CT0003263 41
Table R Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
) Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(I) A molybdenum sample shall be collected and analyzed duringclosed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
(2) A dimethyldithiocarbamate and dimethylamine sample be collected and analyzed if wastewaters containing either Bulab 6013 (dimethyldithiocarbamate) or Bulab 8007 (dimethylamine) is being discharged.
If either ofthe water treatment chemicals have not been used within the previous two years sampling for the compound not in use is not required. In such a case, for DMR reporting purposes, note "Not Discharged (ND)" as the sample result with an explanation in the cover letter ofthe monthly DMR.
PERMIT # CT0003263 42
TABLES I Monitoring Location: 1 Discharge Serial Number: 001C-3 Wastewater
Description:
Low Level Radiation Waste Drain Tank Discharge: Unit 3 Low Level Waste Drain Tank discharges including waste water from areas within the Reactor Building, Auxiliary Boiler, Steam Generator blowdown, sludge lancing, wet lay-up and other radiologically controlled areas, Chemistry Laboratory drains and various sumps located within the Unit 3 Turbine Building during plant start up and shut down, operation, maintenance, and incidental system leakage. In accordance with Section 4 (H) ofthis permit, DSN OOIC-I, 001C-2, OOlC-l(a), 00IC-9, and the Unit 3 Turbine Building Sump may be redirected to this alternative location. (Discharge Code 117000N)
Monitoring Location
Description:
Low Level Radiation Waste Drain Tanks - Sample valves located in the Unit 3 liquid waste building and tapped from the recirculation pipe for the low level radiation waste drain tanks (A or B) at the discharge ofthe low level radiation waste drain tank discharge pumps (A or B). An alternate sample location is the Low Level Radiation Waste Drain Tank discharge recirculation pump discharge pressure gauge instrument block in the waste building.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level UNITS Test 3 PARAMETER Average Maximum Sample//
Sample Type or Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Reporting Measurement to limit or required Reporting or Frequency 2 be reported range Frequency 2 Measurement to be reported Flow, Maximum I gpd NA 20,000 Daily//Monthly Daily Flow NA NR NA Ethanolamine.
mg/l NA NA NR NA Monthly Grab Dimethyldithiocarbamate (see remark 2) mg/I NA NA NR NA Monthly Grab Dimethylamine (see remark 2) mg/I NA NA NA NA Monthly Grab Hydrazine mg/l NA NA NR NA Weekly Grab pH S.U.
NA NA NR NA Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Boron mwl NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average PERMIT # CT0003263 43
Table S Footnotes and Remarks:
Footnotes:
1 The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
Z The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears:
Remarks:
(I) A molybdenum sample shall be collected and analyzed quarterly during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
(2) A dimethyldithiocarbamate and dimethylamine sample shall be collected and analyzed monthly if wastewaters containing either Bulab 6013 (dimethyldithiocarbamate) or Bulab 8007 (dimethylamine) is being discharged.
If either ofthe water treatment chemicals have not been used within the previous two years sampling for the compound not in use is not required. In such a case, for DMR reporting purposes, note "Not Discharged (ND)" as the sample result with an explanation in the cover letter ofthe monthly DMR.
PERMIT # CT0003263 44
TABLET I Monitoring Location: 1 Discharge Serial Number: 001C-4 Wastewater
Description:
Unit No.3 Secondary System Wet Lay up Drainage, condenser cleaning wastewater, hydrolazing, and incidental system leakage, Secondary System Drainage and Auxiliary Boiler Stack Drainage. DSNs 00 IC-6, 00IC-6(b), 001C-9 and Unit 3 Reactor Containment Building Footing Drains may be discharged at this alternative location in accordance with Section 4 (H) of this permit.
(Discharge Code 106000N)
Monitoring Location
Description:
Sample valve from the make up waste neutralization sump pump common discharge/recirculation pipe in the Unit 3 Turbine Building FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample/lReporting Sample Type or Instantaneous Sample//
Sample Type Monthly Daily Limit Frequency 2 Measurement to limit or required Reporting or Limit be reported range Frequency 2 Measurement to be reported Flow, Average and Maximum J gpd 80,000 Daily//Monthly DailvFlow NA NR NA Hydrazine mg/l NA NA NR NA Weekly Grab pH S.U.
NA NA NR NA Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Ethanolamine mg/I NA NA NR NA Quarterly Grab Boron mg/I NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Table T Footnotes and Remarks:
Footnotes:
J The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(I) A molybdenum sample shall be collected and analyzed during closed cooling system drainage ifmolybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263" 45
TABLEU I Monitoring Location: 1 Discharge Serial Number: 001C-5 Wastewater
Description:
Unit 3 service water from auxiliary heat exchangers during start up, shut down, operation, incidental system leakage and maintenance, continuous discharge of non-contact cooling water containing residual chlorine, including pump lubrication water, pump seal water, hydrolazing waste water, incidental leakage from heat exchanger tube leaks and cooling water supplied from the Unit 3 circulating water system during service water pump maintenance. Demineralized water used to flush the service water side ofthe RSS heat exchangers.
Monitoring Location
Description:
Sampling valves at the service water discharge ofthe A, B & C reactor plant closed cooling water heat exchangers.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample/!Reporting Sample Type Instantaneous Sample/!
Sample Type Monthly Limit Daily Limit Frequency 2 or limit or required Reporting or Measurement range Frequency 2 Measurement to be reported to be reported Flow, Maximum) gpd NA 86,400,000 Weekly/!Monthly Daily Flow NA NR NA Flow, Total (Day of Sample Collection) gpd NA 86,400,000 Weeldy/lMonthly Daily Flow NA NR NA Chlorine, Free Available (see remarks I & 2) mg/l NA NA NR NA 0.25 Weekly See remark below Table U Footnotes and Remarks:
Footnotes:
) The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Average Monthly Flow and Maximum Daily Flow for each month.
Z The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
J Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
- 1. The Permittee shall maintain all free available chlorine analytical data onsite and shall report on the DMR the lowest and highest values for month.
- 2. Grab samples for free available chlorine monitoring shall be composed of a flow proportioned average ofthe operating service water trains.
PERMIT # CT0003263 46
TABLE V I Monitorinl! Location: 1 Discharl!e Serial Number: 001C-6 Wastewater
Description:
Unit 3 Condensate Polishing Facility discharge: Unit 3 Condensate Polishing Facility operation including system area floor drains, vents, incidental leakage, maintenance.
activity wastewater, resin regeneration and drain wastewater, condensate polisher system wastewater, fire water, waste evaporator feed tank water, service water (seawater), Steam Generator wet lay up drainage, hot water heating system drainage, secondary system drainage and air conditioner and air compressor condensate drains during plant start up, plant operation, shut down, incidental system leakage, 3ABD-TK2 overflow and flow from 3ABD-TKI or 3ABD-TK2 during maintenance activities. This discharge is essentially a batch discharge; however, some of the minor inputs are continuous.
Continuous inputs include domestic water inputs from pump and fan seal water and sample sink drains.
DSNs 00IB-6, OOIC-I(a), 00 IC-6(b) may be redirected to this alternative location in accordance with Section 4 (H) ofthis permit. (Discharge Code 106000N)
Monitorin2 Location
Description:
Sample valve on the common discharge line from TK-IO & TK-II CPF sample sink on the filter outlet in the Unit 3 Turbine Building.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample/lReporting Sample Type or Instantaneous Sample/!
Sample Type Monthly Daily Limit Frequency 2 Measurement to limit or required Reporting or Limit be reported range Frequency 2 Measurement to be reported Flow, Maximum I gpd NA 75,000 Daily/lMonthly Daily Flow NA NR NA Ammonia as Nitrogen mg/I NA NA NR NA Monthly Grab Ammonia as Nitrogen kg/day NA NA NR NA Monthly Nitrate mg/I NA NA NR NA Quarterly Grab Nitrite mg/I NA NA NR NA Quarterly Grab Total Kjeldahl Nitrogen (TKN) mg/I NA NA NR NA Quarterly Grab Hydrazine mg/I NA NA NR NA 37.5 Weekly Grab pH S.U.
NA NA NR NA 6.0-9.0 Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily Composite 30.0 Quarterly Grab Ethanolamine mg/I NA NA NR NA Monthly Grab Boron mg/l NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/I NA NA NR NA Quarterly Grab Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Zinc, Total mg/I NA NA NR NA Quarterly Grab PERMIT # CT0003263 47
Table V Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
Z The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent'than monthly then the 'Reporting Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
J Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed during closed cooling system drainage ifmolybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 48
TABLEW I Monitoring Location: 1 Discharge Serial Number: 00IC-6(a)
Wastewater
Description:
Unit No.3 Steam Generator Chemical Cleaning and Chemical Decontamination Wastewater (Discharge Code 106000N)
Monitoring Location
Description:
DSN 001C-2 or DSN OOIC-3 discharge location (See Section 10, Paragraph B of this permit)
Maximum Frequency of Discharge: Approximately 30 days during an outage Expected Frequency: One activity per year FLOWlTIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Samplel/Reporting Sample Type or Instantaneous Samplell Sample Type Monthly Limit Daily Frequency 2 Measurement to limit or required Reporting or Limit be reported range Frequency 2 Measurement to be reported Flow, Maximum 1 god NA 60,000 Monthly Daily Flow NA NR NA Boron, Total mg/I Weekly Daily Composite NA NR NA Cadmium, Total mgt I 0.1 0.5 Weekly Daily Composite 0.75 NR NA Chromium, Total mgt I 1.0 2.0 Weekly Daily Composite 3.0 NR NA Copper, Total mg;1 1.0 1.0 Weekly Daily Composite 1.5 NR NA Iron, Total mg/I 1.0 1.0 Weekly Daily Composite 1.5 NR NA Hydrazine mg/I Weekly Daily Composite NA NR NA Lead, Total mg/l 0.1 0.5 Weekly Daily Composite 0.75 NR NA Nickel, Total mg/l 1.0 2.0 Weekly Daily Composite 3.0 NR NA Zinc, Total mgll 1.0 2.0 Weekly Daily Composite 3.0 NR NA pH S.U.
NA NA NR NA 6.0 to 9.0 Weekly Grab Total Suspended Solids mg/l 20.0 30.0 Weekly Daily Composite 30.0 NR NA Oil & Grease, Total mg/l 10.0 15.0 Weekly Grab Sample 15.0 NR NA Average Molybdenum (see remark 1) mg/I Weekly Daily Composite NA NR NA
/
PERMIT # CT0003263 49
Table W Footnotes and Remarks:
Footnotes:
I The Pennittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the MaximumDaily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 50
TABLE X I Monitoring Location: 1 Discharge Serial Number: 00IC-6(b)
Wastewater
Description:
Intermittent discharge of the Unit 3 Auxiliary Boiler blowdown including continuous discharge ofAuxiliary Boiler components during Auxiliary Boiler operation, hot water heating system drainage, intermittent discharge ofthe Auxiliary Boiler enclosure oil and water separator and drainage ofsecondary system wastewater during plant start up, shut down, plant operation, incidental system leakage and maintenance. (Discharge Code 117000N)
Monitoring Location
Description:
Sample valve tapped from the outlet pipe downstream of3ABD-TK2-pump discharge in the east CPF enclosure in the Unit 3 Turbine Building.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test J Average Maximum Sample//Reporting Sample Type Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Frequency 2 or limit or required Reporting or Measurement range Frequency 2 measurement to be reported to be reported Flow, Maximum I gpd NA 72,000 Weekly/lMonthly DajlyFlow NA NR NA Ethanolamine mg/l NA NA NR NA Monthly Grab Hydrazine mg/l NA NA NR NA Weekly Grab Molybdenum (see remark I) mg/I NA NA NR NA Quarterly Grab pH S.U.
NA NA NR NA Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily 30.0 Quarterly Grab Composite Oil & Grease, Total mg/I 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Zinc, Total mg/l NA NA NR NA Quarterly Grab Table X Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day ofdischarge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 51
TABLEY I Monitoring Location: 1 Discharge Serial Number: 00IC-8 Wastewater
Description:
Unit 3 Condenser Hotwell wastewater discharged directly from the condensate pump discharge including secondary system wastewater drainage for maintenance, secondary system drainage to control secondary plant water inventory (condensate surge tank level) during plant start up and shut down, secondary system wet lay up wastewater and hotwell wet lay up drainage during start up, shut down, operation, incidental system leakage and maintenance. DSNs OOIC-I and OOIC-I(a) may be redirected to this alternative location in accordance with Section 4 (H) ofthis permit.
(Discharge Code 1I7000N)
Monitoring Location
Description:
Condensate pump discharge sample valve in secondary sample sink in the Unit 3 Turbine Building.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//Reporting Sample Type Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Frequency 2 or limit or required Reporting or Measurement range Frequency 2 Measurement to be reported to be reported Flow, Maximum I gpd NA 250,000 Daily//Monthly Daily Flow NA NR NA Boron mg/I NA NA NR NA Quarterly Grab Molybdenum (see remark 1) mg/l NA NA NR NA Quarterly Grab Ethanolamine mg/l NA NA NR NA Monthly Grab Hydrazine mg/I NA NA NR NA Monthly Grab pH S.U.
NA NA NR NA
_..oo_-
Weekly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily 30.0 Quarterly Grab Composite Oil & Grease, Total mg/l 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average Table Y Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
Remarks:
(1) A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
PERMIT # CT0003263 52
TABLEZ I Monitorinf! Location: 1 Dischan!e Serial Number: 001C-9 Wastewater
Description:
Unit No.3 Closed Cooling Water System Drainage: Turbine Building and Reactor Building closed cooling water drainage, reactor plant and control building chilled water system drainage, service water system drainage. DSN 001 C-8, condenser hotwell drainage, may be redirected to this alternative location in accordance with Section 4 (H) of this permit.
(Discharge Code 102000N)
Monitoring Location
Description:
Sample from collection, container, isolated system, or DSN 00lC-8 when drained via this DSN.
FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample//Reporting Sample Type Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Frequency 2 or limit or required Reporting or Measurement range Frequency 2 measurement to be reported to be reported Flow, Maximum I gpd NA 30,000 Daily/lMonthly Daily Flow NA NR NA Ethanolamine (see remark 3) mg!1 NA NA NR NA Monthly Grab Hydrazine (see remark 4) mg!1 NA NA NR NA Weekly Grab Molybdenum (see remark 2) mg!1 NA NA NR NA Quarterly Grab Total Suspended Solids mg/I 20.0 30.0 NR Daily 30.0 Quarterly Grab Composite Oil & Grease, Total mg/l 10.0 15.0 NR Grab Sample 15.0 Quarterly Grab Average pH S.U.
NA NA NR NA Weekly Grab Chlorodifluoromethane (see remark 1) ug/l NA NA NR NA Monthly Grab Dichlorodifluoromethane (see remark 1) ug!l NA NA NR NA Monthly Grab PERMIT # CT0003263 53
Table Z Footnotes and Remarks:
Footnotes:
I The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
2 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. If the 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) ofthis permit, where an asterisk appears.
Remarks:
I.
Sampling for chlorodifluoromethane and dichlorodifluoromethane is required when discharging closed cooling water system drainage.
2.
A molybdenum sample shall be collected and analyzed during closed cooling system drainage if molybdenum is being used as a corrosion inhibitor.
3.
Ethanolamine sample shall be collected and analyzed if ethanolamine is being used.
4.
A hydrazine sample shall be collected and analyzed if hydrazine is being used.
PERMIT # CT0003263 54
TABLEAA DISCHARGE SERIAL NUMBER: 003-1 MONITORING LOCATION: I WASTEWATER DESCRIPTION:
Unit No.2 Screen Washwater Discharge, including non-chlorinated sea water taken from the intake used to wash down the traveling screens in all intake bays, and domestic water from wash downs and hydrolazing activities, domestic water used as bearing lube water for screenwash pumps and system leakage, drains, and incidental system leakage and maintenance activities during startup, operation and shutdown and screen wash strainer backwash, intake desilting wastewaters, service water pump header discharge and strainer backwash, and fire water used in an emergency to clean the traveling screens. These discharges are normally directed to the Unit 2 fish return (DSN 003a) through the fish and invertebrate return trough. This discharge may be directed to DSN 003a as an alternate pathway in accordance with Section 4(H) of this permit.
(Discharge Code 106000N)
MONITORING LOCATION DESCRIPTION:
Service water strainer sample stop valves LIA, LIB and LIC MAXIMUM DAILY FLOW: 3,888,000 gallons per day DISCHARGE IS TO: Niantic Bay PARAMETER LIMITS & MONITORING Maximum Sample/lReporting Sample Type Instantaneous Frequency!
Limit Chlorine, Total Semi-annual (see Grab Residual (mg/I) (see remark I) remark 4)
Maximum, Flow (gpd)
See remark 2 Monthly Daily Flow below Table AA Footnotes:
I The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
Table AA Remarks:
(I)
Monitoring at DSN 003 shall be conducted during the backwash ofthe Unit 2 service water system strainer.
(2)
The Permittee shall maintain at the facility a record of the total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
(3)
Routine operating procedures include the elevation ofthe intake water temperature on each condenser by a thermal backwash process required for the control of sea mussels and a condenser backflush process for the removal of debris during and/or after storm events or following thermal backwashes. The wastewater from thermal backwashing shall not reenter Niantic Bay except in de minimis quantities.
(4)
Minimum level of20 ug/l for chlorine, total residual applies to this discharge.
PERMIT # CT0003263 55
TABLEBB DISCHARGE SERIAL NUMBER: 003a-1 IMONITORING LOCATION: I WASTEWATER DESCRIPTION:
Unit No.2 fish and invertebrate return trough discharge including wastewaters incorporated in DSN 003 may be directed to this alternate pathway in accordance with Section 4(H) ofthis permit. (Code 1060000)
MONITORING LOCATION DESCRIPTION:
Service water strainer sample stop valves LIA, LIB and LIC MAXIMUM DAILY FLOW: 3,888,000 gallons per day DISCHARGE IS TO: Niantic Bay PARAMETER LIMITS & MONITORING Maximum Sample/lReporting Sample Type Instantaneous Frequency)
Limit Chlorine, Total Semi-annual (see Grab Residual (mg/l) (see remark I) remark 3 below)
Maximum, Flow (gpd)
See remark 2 Monthly Daily Flow below Table BB Footnotes:
1 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. If the "Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
Table BB Remarks:
(I) Monitoring at DSN003(a) shall be conducted during the backwash ofthe Unit 2 service water system strainer.
(2) The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
(3)
Minimum level of20 ug/l for chlorine, total residual applies to this discharge.
PERMIT # CT0003263 56
TABLECC DISCHARGE SERIAL NUMBER: 004-1 MONITORING LOCATION: 1 WASTEWATER DESCRIPTION:
Unit No.3 Screen Washwater Discharge, including the debris conveyor and backside refuse trough located on the southeast corner ofthe Unit 3 intake structure and the Unit 3 fish return trough located on the northwest corner ofthe Unit 3 intake structure, domestic water from wash downs, hydrolazing activities, service water pump strainer backwashes, fire suppression system discharges, incidental system leakage and screen wash strainer backwash. (Code 1060000)
MONITORING LOCATION DESCRIPTION:
The fish return trough located on the northwest corner ofthe Unit 3 intake structure MAXIMUM DAILY FLOW: 11,520,000 gallons per day DISCHARGE IS TO: Niantic Bay PARAMETER LIMITS & MONITORING Maximum Sample//Reporting Sample Type Instantaneous Frequency!
Limit Chlorine, Total Semi-annual (see Grab Residual (mg/I) (see remark 1) remark 4 below)
Maximum, Flow (gpd)
See remark 2 Monthly Daily Flow below Table CC Footnotes:
1 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
Table CC Remarks:
(1)
Monitoring at DSN 004 shall be conducted during the backwash ofthe Unit 3 service water system strainer.
(2)
The Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Maximum Daily Flow for each month.
(3)
Routine operating procedures include the elevation of the intake water temperature on each condenser by a thermal backwash process required for the control of sea mussels and a condenser backflush process for the removal of debris during and/or after storm events or following thermal backwashes. The wastewater from thermal backwashing shall not reenter Niantic Bay except in de minimis quantities.
(1)
Minimum level of 20 ugll for chlorine, total residual applies to this discharge.
PERMIT # CT0003263 57
Monitoring Location: 1 TABLEDD Discharge Serial Number: 006-1 Wastewater
Description:
Unit No.2 and Unit NO.3 floor drains, surface runoff and yard drains including: Unit 2 and Unit 3 Secondary System Drainage, Unit 2 and Unit 3 Turbine Building floor drains; Unit 3 control building floor drains; Unit 3 Engineered Safety Feature building roof drains; Unit 2 and 3 emergency diesel jacket cooling water drainage; Unit 2 and Unit 3 secondary system incidental leakage and drainage during plant start up, shut down, operation and maintenance; Unit 2 and Unit 3 secondary system sample waste; Units 2 and 3 condensate surge tank drainage; hydrolazing and water washes including domestic water, de-ionized water and seawater; clean water drains; service water system drainage; domestic and fire system drainage; continuous reject flow from reverse osmosis treatment of make-up water from Unit 2 and Unit 3 pure water treatment systems; Units 2 and 3 intake structure debris dumpster leakage; above wastewaters generated during start up, shut down, and plant operation, incidental system leakage and maintenance; fire suppression system discharges, including flush phase offire water system test; air conditioning and compressor condensate drains; Millstone Radwaste Reduction Facility sump; condensate polishing facility spent ion exchange resin dewatering drainage and Unit 3 Reactor Building footing drain water, Unit 2 and Unit 3 emergency diesel generator room floor drains through oil/water separators; transformer area yard drains through oil/water separators; and generator stator cooling drains. (Discharge Code 101060N)
Monitoring Location
Description:
Sampling manhole approximately 245 feet from outlet Discharge is to: Long Island Sound via Niantic Bay FLOW/TIME BASED MONITORING INSTANTANEOUS MONITORING Minimum Level PARAMETER UNITS Test 3 Average Maximum Sample/lReporting Sample Type Instantaneous Sample//
Sample Type Monthly Limit Daily Limit Frequency 2 or limit or required Reporting or Measurement range Frequency 2 Measurement to be reported to be reported Aquatic Toxicity, Mysidopsis bahia Invertebrate 4 NA NA NR NA LC50>33%
NR Grab Aquatic Toxicity, Cyprinodon variegatus NA NA NR NA LC50>33%
NR Grab Vertebrate 4 Flow, Average and Maximum I gpd 216,000 432,000 Hourly//Monthly Daily Flow NA NR NA Flow, Total gpd 432,000 Weekly//Monthly Daily Flow NA NR NA pH (see remarks 2 and 3)
S.U.
NA NA NR NA 6.0-9.0 Weekly RDS pH (see remarks 2 and 3)
S.U NA NA NR NA 6.0 - 9.0 Hourly RDM Ammonia as Nitrogen mg/I Quarterly Daily NA NR NA Composite Boron mg/I Qumterly Daily NA NR NA Composite Ethanolamine mg/I Monthly Daily NA NR NA Composite Hydrazine ug/I 50.0 100.0 Monthly Daily 140.0 NR NA Composite Oil & Grease, Total (see remark 1) mg/l 10.0 15.0 Quarterly Grab Sample 15.0 NR NA Average Surfactants - Anionic mg/l Quarterly Daily NA NR NA Composite Total Suspended Solids (see remark 2) mgll 20.0 30.0 Quarterly Daily 30.0 NR NA Composite PERMIT # CT0003263 58
Table DD Footnotes and Remarks:
Footnotes:
I For this parameter the Permittee shall maintain at the facility a record ofthe total flow for each day of discharge and shall report the Average Monthly Flow and the Maximum Daily FloW for each month.
Note: The average monthly and maximum daily flow limit excludes stormwater run-offfrom storm events greater than 0.1 inch ofrain or observed snow melt.
2 The first entry in this column is the 'Sample Frequency'. Ifthis entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
3 Minimum Level Test refers to Section 6, Paragraph (A) of this permit, where an asterisk appears.
4 See Section 6(B) of this permit for additional aquatic toxicity requirements.
'Remarks:
1.
A quarterly_sample shall be collected and analyzed for oil and grease, total during a period of discharge from oil-water separator(s).
2.
Sample shall be collected and analyzed for total suspended solids and pH during dry weather flows in accordance with the frequency specified above.
3.
The Permittee shall monitor flow and pH manually every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> whenever the automated equipment malfunctions or is out ofservice for maintenance.
PERMIT # CT0003263 59
TABLEEE-T Discharge Serial Number (DSN): 006-1 Monitoring Location:
T Wastewater
Description:
Unit No.2 and Unit No.3 floor drains, surface runoff and yard drains including: Unit 2 and Unit 3 Secondary System Drainage, Unit 2 and Unit 3 Turbine BUilding floor drains; Unit 3 control building floor drains; Unit 3 Engineered Safety Feature building roof drains; Unit 2 and 3 emergency diesel jacket cooling water drainage; Unit 2 and Unit 3 secondary system incidental leakage and drainage during plant start up, shut down, operation and maintenance; Unit 2 and Unit 3 secondary system sample waste; Units 2 and 3 condensate surge tank drainage; hydrolazing and water washes including domestic water, de-ionized water and seawater; clean water drains; service water system drainage; domestic and fire system drainage; continuous reject flow from reverse osmosis treatment of malee-up water from Unit 2 and Unit 3 pure water treatment systems; Units 2 and 3 intake structure debris dumpster leakage; above wastewaters generated during start up, shut down, and plant operation, incidental system leakage and maintenance; fire suppression system discharges, including flush phase offire water system test; air conditioning and compressor condensate drains; Millstone Radwaste Reduction Facility sump; condensate polishing facility spent ion exchange resin dewatering drainage and Unit 3 Reactor Building footing drain water. Unit 2 and Unit 3 emergency diesel generator room floor drains through oil/water separators; transformer area yard drains through oil/water separators; and generator stator cooling drains.
(Discharge Code 101060N)
Monitoring Location
Description:
Manhole 245 feet from outlet Allocated Zone of Influence (ZQI): 342,000 gallons per hour In stream Waste Concentration (!We):
2.6%
Maximum Minimum PARAMETER Units Daily Sampling Frequency Sample Level Limit Type Analysis See Section 6 Aquatic Toxicity, Mysidopsis bahia Invertebrate LC50> 100%
Quarterly Daily Composite Aquatic Toxicity, Cyprinodon variegatus LC50> 100%
Quarterly Daily Composite Vertebrate Chlorine, Total Residual mgll Quarterly Daily Composite 20.0 ugll Boron, Total mg/I Quarterly Daily Composite 1.0 mg/I Copper, Total mg/l Quarterly Daily Composite 5.0 ug/I Lead, Total mg/l Quarterly Daily Composite 5.0 ug/I Nickel, Total mg/l Quarterly Daily Composite 5.0 ug/l Nitrogen, Ammonia (total as N) mg/I Quarterly Daily Composite Total Suspended Solids mg/l 30.0 Quarterly Daily Composite Surfactants - Anionic mg/l Quarterly Daily Composite PERMIT # CT0003263 60
TABLEEE-T Discharge Serial Number (DSN): 006-1 Monitoring Location:
T Zinc, Total II mg/l II I
Quarterly Daily Composite II 20.0 ug/l PERMIT # CT0003263 61
TABLEFW DISCHARGE SERIAL NUMBERS: 005,007,008,009,012,014,015,016,019, 021,022024, 024A, 027, 028, 032, fire water system flow test to Niantic Bay WASTEWATER DESCRIPTION:
Fire suppression system discharges, including flow phase offire water system test, clean water washes or drains, air conditioning condensate to all stormwater discharges listed above and oil/water separator discharge from Unit 2 lube oil storage room. (Discharge Code 108000N)
MAXIMUM DAILY FLOW: Intermittent MONITORING LOCATION: Fire Water Tank DISCHARGE IS TO: Niantic Bay PARAMETER LIMITS & MONITORING Maximum Sample//Reporting Sample Type Instantaneous Frequenci Limit Chlorine, Total NA Annual Grab Residual (mg/I)
(Note: Minimum level of 20 ugll for chlorine, total residual applies to this discharge.)
TABLE FF DISCHARGE SERIAL NUMBERS: 008, 013, 014,018,019, 020,023, 024A, 025, 026,028,029, SMA-I, SMA-2, SMA-3, SMA-4 WASTEWATER DESCRIPTION:
Parking area and/or roadway stormwater runoff (Discharge Code 108000N)
MAXIMUM DAILY FLOW: Intermittent MONITORING LOCATION: No monitoring required DISCHARGE IS TO: Niantic Bay PERMIT # CT0003263 62
TABLEGG-l DISCHARGE SERIAL NUMBER: 017-1 WASTEWATER DESCRIPTION:
Marine Biology Laboratory Seawater Return Receiving Stream: Jordan Cove Maximum Daily Flow: Variable MONITORING LOCATION: No monitoring required TABLEGG-2 DISCHARGE SERIAL NUMBER: 017a-l WASTEWATER DESCRIPTION:
Marine Biology Laboratory Filter Backwash MAXIMUM DAILY FLOW: Variable MONITORING LOCATION: 2-inch discharge line to quarry PARAMETER LIMITS & MONITORING Maximum Sample/lReporting Sample Type Instantaneous Frequency' Limit Chlorine, Total Annual Grab Residual (mg/I) (Note:
Minimum level of 20 ug/l for chlorine, total residual applies to this discharge.)
Total Suspended Annual Grab Solids PERMIT # CT0003263 63
64 TABLEIllI Monitoring Site No. 001 MONITORING LOCATION: 7 MONITORING LOCATION DESCRIPTION:
Unit Nos. 2 and 3 Intakes (Before Condensers)
PARAMETER Sample//
Sample Type Reporting Frequency I Intake flow limits for cooling water purposes Hourly Instantaneous (as determined by the (see Section ID(C) of this permit)
Environmental Data Acquisition Network or equivalent)
Temperature of Hourly Instantaneous Total Suspended Solids (mg/l)
Daily, (see remark 3)
Grab, (see remark 3)
Turbidity (NTU)
Daily, (see remark 3)
Grab, (see remark 3)
Table HH Footnotes:
1 The first entry in this column is the 'Sample Frequency'. If this entry is not followed by a 'Reporting Frequency' and the 'Sample Frequency' is more frequent than monthly then the 'Reporting Frequency' is monthly. Ifthe 'Sample Frequency' is specified as monthly, or less frequent, then the 'Reporting Frequency' is the same as the 'Sample Frequency'.
Table HH Remarks:
(1)
The Permittee shall record and retain on-site the flow and temperature at the Unit 2 and Unit 3 intakes.
(2)
The temperature at the intake units shall be used in determining and reporting the change in temperature required to be reported by this permit at various discharge monitoring locations.
(3)
Turbidity and total suspended solids monitoring is only required on days when desilting operations wastewater from either Unit 2 or Unit 3 is discharged to the Quarry. The background sample for turbidity to determine compliance shall be a grab sample from the vicinity ofthe MillstoneHarbor or the Environmental Laboratory Boat Dock.
PERMIT # CT0003263
TABLE II Testing protocol DSN 001-1 Mysid 48-hour acute and 7-day chronic tests Testing procedure Acute: first 48-hours of the chronic test as modified below.
Chronic: EPA-821-R-02-014, except as modified below.
Test type Static with daily renewal Salinity Laboratory control water (26 to 32 parts per thousand); Effluent, as is (DSN 001-1), site control water, as is (Niantic Bay)
Temperature 26°C+/- 1 Light Ambient laboratory illumination Photoperiod 16-h light, 8-h dark Test chamber type Glass or plastic (250 - 400 mL capacity)
Test solution volume 200 mL per replicate Test solution renewal Daily Age of test organisms 7 days old No. of test organisms 5 per replicate chamber Replicates 12 - 100% effluent and 12 - Site control, 12 Laboratory control water Source of food Newly hatched (less than 24-hour old) brine shrimp nauplii. Concentrate brine shrimp nauplii with ~ 150 urn sieve mesh and rinse with seawater.
Feeding regime About 150 brine shrimp nauplii per mysid once per day (about one concentrated drop). Feed after test solution renewal.
Cleaning test chambers Siphon excess food prior to test solution renewal.
Aeration None, unless DO falls below 4.0 mg/l, then gently aerate all chambers.
Control water Niantic Bay water collected near the intakes of MPS, grab samples, three separate collections:
collected on day 0, day 2, and day 4.
Effluent 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite collected at DSN 001-1 (quarry cut). Collected on day 0, day 2 and day 4.
Test duration Acute: 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> Chronic: 7 days Endpoint Acute: Survival Chronic: Survival, growth and percent oftotal females with eggs in oviducts.
Mortality observations Each test chamber is examined for mortality at 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> intervals. Dead individuals are removed and if any individuals are missing (via cannibalism) they are noted.
Physical-chemical Temperature, salinity, DO and pH ofthe effluent and control test solutions are measured at the measurements of solutions beginning, at 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> intervals and at test termination. These parameters are measured prior to in test chambers and after test solution renewals.
PERMIT # CT0003263 65
Physical-chemical Prior to test initiation the following parameters are measured or aliquots preserved for later measurements of measurement with each of three composite sample collections at DSN 001-1 and each grab composite effluent sample sample collected from the intake area: salinity, pH, total residual chlorine, ammonia as N, and control grab test nitrate as N, nitrite as N, total suspended solids, total recoverable and dissolved boron, total sample recoverable and dissolved copper, total recoverable and dissolved lead, total recoverable and dissolved nickel, total recoverable and dissolved zinc, total recoverable and dissolved molybdenum, total kjeldahl nitt"bgen, and hydrazine.
Reference toxicant Sodium dodecyl sulfate with an acute endpoint (48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />) and chronic endpoint.
Test acceptability criteria:
Acute: 90% survival (averaged) in laboratory_controls Chronic: 80% survival (averaged) in laboratory control after 7 days. A minimum average dry weight of0.2 mg per surviving mysid in controls is required.
Fecundity shall be used as an endIJoint if50% or more ofthe females in the laboratory control produce eggs.
TABLEJJ Testing protocol DSN 001-1 Sheepshead minnow 48-hQur acute and 7-day chronic tests Testing procedure Acute: first 48-hours ofthe chronic test as modified below.
Chronic: EPA-821-R-02-014, except as modified below.
Test type Static with daily renewal Salinity Laboratory control water (26 to 32 parts per thousand); Effluent, as is (DSN 001-1), site control water, as is (Niantic Bay)
Temperature 26°C+/- 1 Light Ambient laboratory illumination Photoperiod 16-h light, 8-h dark Test chamber type Glass or plastic (l Liter capacity)
Test solution volume 500 - 750 mL per replicate Test solution renewal Daily Age of test organisms
- ,,;24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> old No. oftest organisms 10 per replicate chamber Replicates 6 - 100% effluent and 6 - Site control and 6 Laboratory control water Source offood Newly hatched (less than 24-hour old) brine shrimp nauplii. Concentrate brine shrimp nauplii with:,,; 150 urn sieve mesh and rinse with seawater.
Feeding regime Feed once a day concentrated brine shrimp at a rate per replicate of0.1 mL (2 drops) on days 0-2 and 0.15 mL(3 drops) on days 3-6. Feed after test solution renewals.
Cleaning test chambers Siphon excess food prior to test solution renewal.
Aeration None, unless DO falls below 4.0 mg/I, then gently aerate all chambers.
PERMIT # CT0003263 66
Controi water Niantic Bay water collected near the intakes ofMPS, grab samples, three separate collections:
collected on day 0, day 2, and day 4.
Effluent 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite collected at DSN 001-1 (quarry cut). Collected on day 0, day 2 and day 4.
Test duration Acute: 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> Chronic: 7 days Endpoint Acute: Survival.
Chronic: Survival and growth Mortality observations Each test chamber is examined for mortality at 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> intervals. Dead individuals are removed.
Physical-chemical Temperature, salinity, DO and pH ofthe effluent and control test solutions are measured at the measurements ofsolutions beginning, at 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> intervals and at test termination. These parameters are measured prior to in test chambers and after test solution renewals.
Physical-chemical Prior to test initiation the following parameters are measured or aliquots preserved for later measurements of measurement with each of three total composite sample collections at DSN 001-1 and each grab composite effluent sample sample collected from the intake area: salinity, pH, total residual chlorine, ammonia as N, and control grab test nitrate -as N, nitrite as N, total suspended solids, total recoverable and dissolved boron, total sample recoverable and dissolved copper, total recoverable and dissolved lead, total recoverable and dissolved nickel, total recoverable and dissolved zinc, total kjeldahl nitrogen, total recoverable and dissolved molybdenum, and hydrazine.
Reference toxicant Sodium dodecyl sulfate with an acute endpoint (48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />) and chronic endpoint.
Test acceptability criteria:
Acute: 90% survival (averaged) in laboratory controls Chronic: 80% survival (averaged) in laboratory control after 7 days. A minimum average dry weight of 0.6 mg per surviving organism in laboratory controls (unpreserved).
PERMIT # CT0003263 67
SECTION 6: SAMPLE COLLECTION, HANDLING AND ANALYTICAL TECHNIQUES (A) Chemical Analysis (1)
Unless otherwise specified in this permit, the Permittee shall perform chemical analyses to determine compliance with effluent limits and conditions established in this permit, including all of the Tables, using the methods specified in the Code of Federal Regulations, Part 136 ofTitle 40 (40 CFR 136) unless an alternative method has been approved in writing (a) by the Regional Administrator U.S.EPA Region I pursuant to 40 CFR 136.5, or (b) as provided in section 22a-430-3G)(7) ofthe RCSA. Chemicals which do not have methods ofanalysis specified in 40 CFR 136 shall be analyzed in accordance with methods specified in this permit.
(2)
The Minimum Levels specified below represent the concentrations at which quantification must be achieved and verified by the Permittee for the parameters identified in Section 5 ofthis permit.
Except for chlorine, free available and chlorine, total residual, analyses for these parameters must include check standards within ten percent ofthe specified Minimum Level or calibration points equal to or less than the specified Minimum Level.
Parameter Boron Chlorine, Free Available Chlorine, Total Residual Copper Hydrazine (iodine titration)
Hydrazine (UVNIS Spectrophotometric)
Lead Nickel Zinc Minimum Level 1.0 mg/I 20.0 ug/L 20.0_ug/L 5.0 ug/L 350 ug/L+
5.0 ugIL+
5.0 ug/L 5.0 ug/L 20.0 ug/L
+ This Minimum level applies to the discharges noted in section 6(A)(6) ofthis permit.
(3)
The Permittee shall report the value of each parameter for which monitoring is required under this permit to the maximum level of accuracy and precision possible consistent with the requirements ofthis section ofthe permit.
(4)
The Permittee shall report effluent analyses for which quantification was verified during the analysis at or below the minimum levels specified in this section and which indicate that a parameter was not detected as "less than x" where 'x' is the numerical value equivalent to the analytical method detection limit for that analysis.
(5)
Results of effluent analyses which indicate that a parameter was not present at a concentration greater than or equal to the Minimum Level specified for that analysis shall be considered equivalent to zero (0.0) for purposes ofdetermining compliance with effluent limitations or conditions specified in this permit.
(6)
The Permittee shall test for hydrazine using iodine titration with a minimum detection level of350.
ug/l and shall use this test method to determine compliance with the limit for hydrazine for the following discharges: DSN OOIB-l(a), DSN 00lB-2(a), DSN 00lB-2, DSN 00IB-2(b), DSN 00IB-3, DSN 00IB-6, DSN 00IB-8, DSN 00IB-9, DSN OOlB-lO, DSN OOIB-Il, DSN OOIC-lea), DSN 00IC-2, DSN 00IC-3, DSN 00IC-4, DSN 00IC-6, DSN 00IC-6(a), DSN 00IC-6(b),
DSN 00IC-8 and DSN 00 IC-9. The Permittee shall test for hydrazine using UVNIS spectrophotometric with a minimum detection level of 5.0 ug/l and shall use this test method to PERMIT # CT0003263 68
detennine compliance with the limit for hydrazine at all other discharge locations.
(7)
To detEmnine compliance with the limit for boron at all specified discharge locations, the Pennittee shall test for boron using acid-base titration with a detection limit of 1.0 mg/1.
(8)
The Pennittee shall use the following analytical methods to detennine compliance with the limits for the following substances in this pennit:
Parameter Chlorine, Free Available Chlorine, Total Residual Ethanolamine (ETA)
Ethanolamine (ETA)
Lithium Total Suspended Solids Methodology DPD Colorimetric Method, SM 4500-Cl G DPD Colorimetric Method, SM 4500-Cl G Ion Chromatography (IC)
Total Organic Carbon, EPA Method 415.1 (SM53 10)+
SM 3120B, excluding sample digestion EPA Method 160.2 or modified method for ultra-pure wastewaters++
+
Use ofthis methodology is restricted to analysis for Steam Generator secondary side wet lay-up and Steam Generator cool down drains
++
Total suspended solids analysis of ultra-pure wastewaters will be performed using a one-liter sample ofthe wastewater (9)
As an alternative to the test method specified in Section 6(A)(8), the Permittee may use the following test method to analyze for free available chlorine and total residual chlorine: N,N-diethyl-p-phenylenediamine(DPD) methodology as perfonned by the HACH Pocket Colorimeter Chlorine Test Kit (The HACH Kit). The HACH Kit shall meet the requirements of Standard Method 4500-CLG, shall have a minimum level of 0.02 mg/l for free available chlorine and total residual chlorine and shall measure Total Residual Oxidants in salt water.
(B) Acute Aquatic Toxicity Test (1)
Unless this pennit prescribes otherwise, the Pennittee shall collect and handle samples for monitoring ofAquatic Toxicity for DSN 006-1 as prescribed in "Methods for Measuring the Acute Toxicity ofEfflilents and Receiving Waters to Freshwater and Marine Organisms" (EPA/821-R-02-012). When collecting and handling any such samples the Pennittee shall:
(a)
Chill composite samples as they are collected. Grab samples shall be chilled immediately following collection. Samples shall be held at 0 - 6 degrees Celsius until Aquatic Toxicity testing is initiated.
(b)
Not dechlorinate, filter or modify effluent samples in any way, prior to testing for Aquatic Toxicity, unless specifically approved in writing by the Commissioner.
(c)
Conduct chemical analyses ofthe parameters identified in Section 5 Table EE-T on an aliquot ofthe same sample tested for Aquatic Toxicity as follows:
PERMIT # CT0003263 (i)
At a minimum, pH, specific conductance, salinity and total residual chlorine shall be measured in the effluent sample and, during Aquatic Toxicity tests, in the highest concentration oftest solution and in the dilution (control) water at the beginning ofthe test and at test tennination. IfTotal Residual Chlorine is not detected at test initiation; it does not need to be measured at test tennination.
69
Dissolved oxygen, pH, and temperature shall be measured in the control and all test concentrations at the beginning ofthe test, daily thereafter, and at test termination.
(ii)
For tests with saltwater organisms that require salinity adjustment ofthe effluent, The Permittee shall conduct chemical analyses on an aliquot ofthe effluent sample collected for Aquatic Toxicity testing and on an aliquot ofthe effluent following salinity adjustment. Both sets ofresults shall be reported on the Aquatic Toxicity Monitoring Report (ATMR) submitted under Section 8(B) of this pennit.
(d)
Initiate tests for Aquatic Toxicity within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> of sample collection.
(2)
The Permittee shall determine compliance with the permit limit for Aquatic Toxicity (invertebrate)
(Table EE-T) by conducting testing for 48-hours utilizing neonatal Mysidopsis bahia (1-5 days old with no more than 24-hours range in age)
(3)
The Permittee shall determine compliance with the permit limit for Aquatic Toxicity (vertebrate)
(Table EE"T) by conducting testing for 48-hours utilizing larval Cyprinodon variegatus (1-14 days old with no more than 24-hours range in agey.
(4)
Except as specified below, the Permittee shall conduct static non-renewal acuteJests for Aquatic Toxicity as prescribed in "Methods for Measuring the Acute Toxicity ofEffluents and Receiving Waters to Freshwater and Marine Organisms" (EPA/821-R-02-012), except as specified below.
(a)
Defmitive (multi-concentration) testing; with LC50 as the endpoint, shall be conducted to determine compliance with limits on Aquatic Toxicity and monitoring conditions and shall incorporate, at a minimwn, the following effluent concentrations:
(i)
For Aquatic Toxicity Limits expressed as LC50 values of 33% or greater:
100%,75%,50%,25%,12.5%, and 6.25%
(b)
Sodium lauryl sulfate or sodiwn dodecyl sulfate shall be used as the reference toxicant.
(c)
Synthetic seawater for use as dilution water or controls shall be prepared with deionized water and artificial sea salts as described in EPA/821-R-02-012.
Cd)
Aquatic toxicity tests with saltwater organisms shall be conducted at a salinity between 26 and 32 parts per thousand.
(e)
Salinity adjustment that may be required in tests with saltwater organisms shall utilize the approved EPA method and the effluent shall be adjusted using synthetic sea salts.
(5)
Compliance with limits on Aquatic Toxicity shall be determined as follows:
(a) For limits expressed as a minimum LC50 value, compliance shall be demonstrated when the results of a valid defmitive Aquatic Toxicity test indicates that the LC50 value for the test is greater than the Aquatic Toxicity Limit.
SECTION 7: CHRONIC TOXICITY MONITORING CONDITION (A)
The Permittee shall monitor the chronic toxicity of discharge DSNOO1-1 in accordance with the following requirements:
PERMIT # CT0003263 70
(1)
Chronic toxicity testing ofthe discharge shall be conducted four times per year in the months ofJanuary, April, July and October.
(2)
Except as modified in the testing protocol (see Tables II and JJ) single concentration, static renewal chronic toxicity tests shall be perfonned on the discharge in accordance with the test methodology prescribed in Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Marine and Estuarine Organisms (EPA 821-R-02-014) as referenced in 40 CFR 136 for Cyprinodon variegatus larval survival and growth and Mysidopsis bahia survival, growth, and fecundity; (3)
Daily composite samples ofthe discharge DSN 001-1, collected atthe quarry cut outlet and grab samples ofNiantic Bay water collected in the vicinity ofthe cooling water intake structures for use as site control water, shall be collected on day 0, day 2, and day 4 ofthe test.
(4)
Samples ofDSN 001-1 and site control water shall not be dechlorinated, filtered or chemically altered in any way. Removal of any indigenous organisms that may be present shall be accomplished using an eye dropper.
(5)
Test solutions shall be renewed daily. Samples collected on day 0 shall be used for day 1 and day 2 ofthe test, samples collected on day 2 shall be used for days 3 and 4, and samples collected on day 4 shall be used for the reminder ofthe test. In no case shall samples ofDSN 001-1 or the site control water be held longer than 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> prior to their*
first use for renewal oftest solutions.
(6)
Laboratory control water shall be adjusted to a salinity of26 to 32 parts per thousand.
(7)
A reference toxicant test shall be conducted with each chronic toxicity monitoring test using sodium lauryl sulfate or sodium dodecycl sulfate with an acute LC50 as the endpoint. The reference toxicant test shall report both the Lowest Observable Effect Concentration (LOEC) and Chronic No Observable Effect Concentration (CNOEC) endpoints.
(B)
Compliance with the pennit limit for Aquatic Toxicity specified in Table A shall bedemonstrated when the 48-hour results ofa valid chronic test, which meets acute test acceptability criteria, demonstrates mean survival equal to or greater than 90% in the undiluted effluent sample.
(C)
If any chronic toxicity test result indicates a significant difference (i.e., as detennined by means of a one-tailed t-test at an alpha level of0.05) in mortality oftest organisms between samples ofDSN 001-1 and the control, the Permittee shall immediately notify the Department and submit to the Department within 30 days ofthe conclusion ofthe test a brief summary ofthe test results which includes at a minimum percent survival in each replicate test chamber and all supporting chemicalJphysical measurements performed in association with the toxicity test.
SECTION 8: REPORTING REQUIREMENTS (A)
The Permittee shall enter the results ofall monitoring and analyses used to demonstrate compliance with Section 5 ofthis permit, all chemical analyses and any aquatic toxicity test required by this permit on the Discharge Monitoring Report (DMR) prescribed by the Commissioner, and shall send the DMR to the Bureau ofMaterials Management and Compliance Assurance (Attn: DMR Processing) at the following address. The report shall also include a detailed explanation of any violations ofany limit ofthis pennit reported on the DMR, including any corrective action taken. The Permittee shall ensure that the DMR shall be received at this address by the last day ofthe month following the month in which samples are collected.
PERMIT # CT0003263 71
Bureau ofMaterials Management and Compliance Assurance Water Permitting and Enforcement (Attn: DMR Processing)
Connecticut Department ofEnvironmental Protection 79 Elm Street Hartford, CT 06106-5127 (B)
The Permittee shall enter on the Aquatic Toxicity Monitoring Report (ATMR) form prescribed by the Commissioner complete and accurate aquatic toxicity test data, including percent survival oftest organisms in each replicate test chamber, LC50 values and 95% confidence intervals for definitive test protocols, and for chronic tests the LOEC and CNOEC and all supporting chemical/physical measurements performed in association with any aquatic toxicity test, including measured daily flow and hours ofoperation for the day of sample collection and shall send such report to the Bureau of Water Protection and Land Reuse at the following address:
Bureau ofWater Protection and Land Reuse (Attn: Aquatic Toxicity)
Connecticut Department ofEnvironmental Protection 79 Elm St.
Hartford, CT 06106-5127 The Permittee shall ensure that the ATMR is received at this address by the last day ofthe month following the month in which samples are collected.
The Permittee shall prepare a complete and thorough report ofthe results ofthe chronic toxicity monitoring for DSN 001-1 as outlined in Section 10 of "Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Marine and Estuarine Organisms" (EPA 821-R-02-014). The Permittee shall submit reports for chronic testing required by sections 5, 6, and 7 ofthis permit to the Bureau of Water Protection and Land Reuse, at the address in section 8(A) for review within 60 days oftest completion.
(C)
Ifthis permit requires monitoring ofa discharge but a discharge has not occurred within the frequency of sampling specified in the permit, the Permittee must submit the DMR and ATMR, as scheduled, indicating "NO DISCHARGE".
(D)
The reporting requirements ofthis permit shall be in addition to any reporting required by Section 22a-430-
- 30) ofthe RCSA.
SECTION 9:
RECORDING AND REPORTING OF VIOLATIONS, ADDITIONAL TESTING REQUIREMENTS (A)
If any sample analysis indicates that an Aquatic Toxicity effluent limitation in Section 5 ofthis permit has been exceeded, or that the test was invalid, the Permittee shall collect and test another sample ofthe effluent for Aquatic Toxicity and associated chemical parameters, as described above in Section 5, Section 6, and Section 7, and the Permittee shall report the results to the Bureau ofMaterials Management and Compliance Assurance (Attn: DMR Processing), at the address listed above, within 30 days ofthe exceedance or invalid test. The Permittee shall also report the results to Aquatic toxicity as specified in Section 8 Paragraph (B) above. Results ofall tests, whether valid or invalid, shall be reported.
(B)
If any two consecutive test results or any three test results in a twelve month period indicates that an Aquatic Toxicity Limit has been exceeded, the Permittee shall immediately take all reasonable steps to eliminate toxicity wherever possible and shall submit a report to Bureau of Water Protection and Land Reuse (Attn: Aquatic Toxicity) for the review and approval ofthe Commissioner in accordance with section 22a-430-3U)(l0)(c) ofthe RCSA describing proposed steps to eliminate the toxic impact ofthe discharge on the receiving water body. Such a report shall include a proposed time schedule to accomplish toxicity reduction and the Permittee shall comply with any schedule approved by the Commissioner regarding toxicity reduction.
PERMIT # CT0003263 72
(C)
The Pennittee shall notify the Bureau of Materials Management and Compliance Assurance, Water Permitting and Enforcement Division, within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and in writing within thirty days ofthe discharge of any substance listed in the application but not listed in the pennit ifthe concentration or quantity ofthat substance exceeds two times the level listed in the application.
SECTION 10: COMPLIANCE SCHEDULE (A)
The Permittee shall conduct or continue to conduct biological studies ofthe supplying and receiving waters.
The scope ofsuch studies shall include intertidal and subtidal benthic communities, finfish communities, entrained plankton, lobster populations and winter flounder populations in accordance with the provisions of (1), (2) and (3) ofthis subsection as follows:
(1)
On or before September 30th ofeach calendar year, the Permittee shall submit for the Commissioner's review and written approval a scope of study relating to the continuation of biological studies for the next year. The annual scope of study shall include but not be limited to the following:
(a) an outline ofstudies and monitoring to be conducted during the next year; (b) a description of any other related entrainment and impingement mortality monitoring and studies planned or underway; (c) a summary of any proposed changes in research or monitoring from the previous year.
(2)
On or before July 31st of each calendar year, the Pennittee shall submit for the review ofthe Commissioner a detailed report (Annual Ecological Report) ofthe results ofbiological studies conducted based on the approved scope ofwork for the previous calendar year.
(3)
In conjunction with the above, the Pennittee shall maintain an electronic data base ofthe comprehensive time series of all data collected in association with these biological studies and that such data, or subsets ofdata, will be made available in an agreed upon electronic format within thirty (30) days following a written request for such data from the Department.
(B)
For the duration ofthis pennit, the Pennittee shall ensure that all planned spring refueling outages for Unit 2 and Unit 3 at MPS occur between April 4th and May 14th ("the designated period") ofthe calendar year.
Notwithstanding the foregoing, ifForce Majeure events as described in Section lO(W) occur, planned spring refueling outages for either Unit 2 or Unit 3 may occur sometime other than the designated period, although the Pennittee shall take all reasonable steps to conduct planned spring refueling outages between April 4th and May 14 ofthe calendar year, even ifForce Majeure events occur. IfForce Majeure events occur that will result in the Permittee not being able to conduct planned spring outages within the designated period, the Pennittee shall notify the Commissioner in writing pursuant to 10(W), describing fully the event that occurred and explaining in detail the reason for not being able to conduct spring refueling outages during the designated period, including all steps taken to try and conduct planned spring refueling outages within the designated period.
(C)
Cooling Water Intake Flow Limits:
(1)
Effective from the issuance ofthis pennit up to and including December 31, 2010, the Pennittee shall comply with the intake flow limits in Table 1:
PERMIT # CT0003263 73
Table 1: INTAKE FLOW LIMITS ON OR BEFORE DECEMBER 31, 2010 Cumulative intake flow limit Cumulative intake flow limit Cumulative intake flow limit (average) for Unit 2 and Unit 3 (average) for Unit 2 and Unit 3 (average) for Unit 2 and Unit 3 combined, except during the Interval combined during the Interval in combined during the Interval in in calendar years 2008 and 20 I0 calendar year 2008 calendar year 2010 (Unit 2 planned spring refueling (Unit 3 planned spring refueling outage) outage 2,190.0 mgpd 1,861.5 mgpd 1,642.5 mgpd Remarks:
"mgpd" means million gallons per day.
"intake flow limit (average)" means taking the average of all ofthe total daily flows taking into account each day of the Interval.
"intake flow" means the amount of water that may be withdrawn from Niantic Bay for cooling water purposes for the operation ofUnit 2 and Unit 3 at MPS.
"Interval" means from April 4th to May 14th or the fust day after May 14th when the intake water temperature reaches 52 degrees F, whichever is later, but in no event later than June 5th.
(2)
Effective January 1,2011, the Permittee shall comply with the intake flow limits in Table 2.
Table 2: INTAKE FLOW LIMITS ON OR AFTER JANUARY 1,2011 Cumulative intake flow limit (average) for Unit 2 and Unit 3 combined except during the Interval for the calendar years described in this table 2,190.0 mgpd Cumulative intake flow limit (average) for Unit 2 and Unit 3 combined during the Interval in calendar year 2011 and every three (3) calendar years thereafter (Unit 2 planned spring refueling outage) 1,270.2 mgpdt Cumulative intake flow limit (average) for Unit 2 and Unit 3 combined during the Interval in calendar year 2012 and every three (3) calendar years thereafter (no planned spring refueling outage) 1,467.3 mgpdt Cumulative intake flow limit (average) for Unit 2 and Unit 3 combined.
during the Interval in calendar year 2013 and every three (3) calendar years thereafter (Unit 3 planned spring refueling outage) 1,095.0 mgpd*t Remarks:
"mgpd" means million gallons per day.
"intake flow limit (average)" means taking the average of all ofthe total daily flows taking into account each day of the Interval.
"intake flow" means the amount ofwater that may be withdrawn from Niantic Bay for cooling water purposes for the operation ofMPS.
"Interval" means from April 4th to May 14th or the first day after May 14th when the intake water temperature reaches 52 degrees F, whichever is later, but in no event later than June 5th.
- IfForce Majeure events as described in Section lO(W) interfere with the anticipated Unit 3 refueling outage scheduled for calendar year 2013 and every three (3) calendar years thereafter, the cumulative intake flow limit (average) for Unit 2 and Unit 3 combined during the Interval in such calendar year shall be 1,270.2 mgpd.
tFor the period beginning May 14th to June 5th, or until the water temperature as measured at the inlet to the Unit 2 and Unit 3 cooling water intake structures reaches 52 degrees F, whichever is sooner, the average ofall ofthe total daily flows for each day ofthis period for Unit 2 and Unit 3 combined shall not exceed 1467.3 mgpd.
PERMIT # CT0003263 74
(3)
Subject to the Commissioner's written approval, ifthe Permittee establishes that implementation of the Variable Frequency Drives and any planned spring refueling outages cannot achieve compliance with the flow reductions set forth in Table 2 ofthis paragraph, the Permittee may implement additional entrainment mitigation technologies, operating controls and other measures beyond those authorized by the terms and conditions ofthis permit which, in combination with the Variable Frequency Drives and any spring refueling outages, provide an equivalent amount of entrainment reduction as the flow limitations specified in Table 2 ofthis paragraph would provide during the most productive period ofwinter flounder spawning (Le. optimal spring winter flounder larval entraimnent season: April 4th through May 14th). The Permittee shall not implement any such additional technology, operating controls or measures beyond those authorized by the terms and conditions ofthis permit until either: (a) the Commissioner notifies the Permittee in writing that a permit modification is unnecessary; or (b) if in the Commissioner's judgment the activity would result in a discharge or a cumulative intake flow beyond the terms and conditions ofthis permit and require a modification ofthis permit in accordance with R.C.S.A. Sections 22a-430-4(g) and 22a-430-4(p). Nothing in this paragraph shall excuse compliance with Sections 22a-430-3(i), 22a-430-4(g) and 22a-430-4(p).
(4)
The Permittee shall submit, each July 31st ofthe calendar year, an Annual Ecological Report.
Such report shall include, among other things, a complete and thorough description of all work undertaken for the implementation offlow reduction and/or entrainment mitigation technologies, operational methods or other measures undertaken in the previous calendar year. Such report shall include flow monitoring data and/or other measurements as necessary to demonstrate compliance with the entraimnent reduction performance standards in effect as described above including a calculated estimate ofthe reduction in entrainment of larval winter flounder achieved.
(5)
Variable Frequency Drives: The Permittee shall design, acquire, construct, install, operate and maintain variable condenser cooling water flow technology ("variable frequency drives") to comply with the flow limits established in Table 2, above, in accordance with the following:
(a)
On or before December 31, 2008, the Permittee shall submit to the Commissioner:
(i) a detailed schedule for the design, acquisition, construction, installation, operation, and maintenance of variable frequency drives, including applying for and obtaining all permits and approvals. Any downtime ofgenerating units to accommodate installation or maintenance shall be scheduled to coincide with otherwise necessary downtime (e.g., for refueling outages, repair, overhaul, or routine maintenance ofthe generating units) to the greatest extent practicable; and (ii) a list of all permits and approvals required for the construction, installation, operation and maintenance of such variable frequency drives, including but not limited to any permits required under sections 22a-32, 22a-42a, 22a-342, 22a-361, 22a-368 or 22a-430 ofthe Connecticut General Statutes.
(b)
Beginning December 31,2008, and continuing quarterly thereafter until the actions taken to comply with Section 10(e) have been completed, the Permittee shall submit to the Commissioner quarterly status reports. The status reports shall describe the progress being made since the last status report regarding the design, acquisition, construction, installation and operation ofthe variable frequency drives. Status reports shall include, but not be limited to, a detailed description ofprogress made by the Permittee in performing actions required by this section ofthe permit including, but not limited to, PERMIT # CT0003263 75
development ofengineering plans and specifications, construction activity, contract bidding, operational changes, preparation, submittal of permit applications and dates the variable frequency drives were operated during each quarterly status report period.
(c)
The Permittee shall design, acquire, construct, install and have operational at MPS variable frequency drives capable of achieving compliance with the cumulative intake flow limits (average) specified in Table 2, above, no later than December 31,2010.
Within fifteen (15) days after completing such actions, the Permittee shall certify to the Commissioner in writing that the variable frequency drives required by and compliant with the terms and conditions ofthis permit have been installed and are operational at MPS.
(d)
Notwithstanding IO(C)(5)(c), contingent upon obtaining all necessary pelmits and authorizations pursuant to lO(C)(5)(a)(ii) above, the Pennittee shall use diligent efforts to construct and install variable frequency drives at Unit 2 during its planned Fall 2009 refueling outage and to operate the variable frequency drives during the Interval in calendar year 2010. The Permittee shall use diligent efforts to install variable frequency drives at Unit 3 during its planned Spring 2010 refueling outage.
(e)
On or before July 1,2012, the Permittee shall submit for the Commissioner's review and written approval a report that, at a minimum:
(i) evaluates the efficacy ofthe operation ofthe variable frequency drives in achieving compliance with the intake flow limits described in Section lO(C) of this permit; (ii) evaluates, based upon experience acquired by the Permittee in the first year of operation ofthe variable frequency drives, whether such variable frequency drives, individually or in combination with other existing operational measures, are capable of extending the duration ofthe flow reductions beyond the Interval at Unit 2 and Unit 3 at MPS; (iii) recommends any further evaluation to determine whether such variable frequency drives, individually or in combination with other existing operational measures, are capable ofextending the duration ofthe flow reductions beyond the Interval at Unit 2 and Unit 3 at MPS; and (iv) provides a schedule for the performing the further evaluation.
(D)
The Permittee shall undertake a study to examine, in a laboratory setting, the efficacy of fine-mesh screens to reduce entrainment ofwinter flounder larvae in accordance with the approved scope of study and schedule submitted in correspondence D17445 dated April 30, 2003, from Dominion Nuclear Connecticut, Inc. to the Department and revised in a submittal (D17518) received on November 20, 2003.
(E)
On or before December 1, 2008, the Permittee shall submit for the Commissioner's review and written approval a comprehensive and thorough report that describes its fmdings on the study performed in accordance with Section 10(D) ofthis Permit. The feasibility of implementing fme mesh screen technologies at the Unit 2 and Unit 3 cooling water intake structures at MPS will be part ofthe evaluation to be conducted pursuant to Section 10(K).
(F)
On or before ninety (90) days after the issuance ofthis permit, the Permitteeshall submit for the Commissioner's review and written approval a scope of study that defmes the Permittee's role and commitment for its participation during the tenure of a Nitrogen Work Group established by the Department PERMIT # CT0003263 76
to review and evaluate nitrogen loading and management in the Niantic River. The scope ofstudy shall also include a substantive plan and schedule of investigations to be conducted by the Permittee or by funding a mutually acceptable outside party, contributory and complementary to studies and monitoring identified by the Work Group, and endorsed by the Work Group, which may include but not be limited to:
(1)
Monitoring of ambient nitrogen concentrations in the Niantic River and other environmental conditions relevant to water quality in the Niantic River; (2)
Identification ofthe sources ofnitrogen to the Niantic River; (3)
Quantification ofthe load ofnitrogen to the Niantic River from human and natural sources; (4)
Aqualitative assessment regarding the degree to which nitrogen impacts eelgrass bed health or dissolved oxygen conditions in the Niantic River; (5)
An estimate ofnitrogen loads to the Niantic River that would be consistent with a healthy eelgrass condition; and (6)
Providing assistance in evaluation of categorical management actions that would help reduce nitrogen loads to the Niantic River.
Note: Nitrogen Work Group will be drawn from the following organizations: DEP - Bureau of Water Protection and Land Reuse - Planning and Standards Division, Office ofLong Island Sound Programs and Marine Fisheries Division; U.S. EPA-Office ofResearch and Development, Narragansett Bay-Rhode Island; University of Connecticut - Avery Point and/or Stamford Campuses; US Fish and Wildlife Service; US Geological Survey; Dominion Nuclear Connecticut, Inc.; and others deemed necessary by the DEP.
(G)
In accordance with a schedule adopted by the Nitrogen Work Group, the Permittee shall make available all data collected pursuant to Section 10(F) above and contribute to a fmal report prepared under the auspices ofthe Nitrogen Work Group, which provides a comprehensive and thorough analysis ofthe Permittee's activities and accomplishments in the Nitrogen Work Group effort. The Permittee shall also make reference to these activities, and incorporate a summary ofthose activities, in its comprehensive Annual Ecological Report of environmental studies to the DEP.
(H)
On or before 180 days after the issuance ofthis permit, the Permittee shall submit for the Commissioner's review and written approval a scope of study on the feasibility ofaugmenting natural reproduction ofthe Niantic River population of winter flounder by transplanting pre-spawn winter flounder collected from other areas ofLong Island Sound or Block Island Sound to the Niantic River or by other alternative augmentation measures. The scope of study may be based on similar experiences with winter flounder in the U.S. or related species in the U.S. or worldwide. The scope of study shall include a substantive plan.and schedule for conducting the investigation including but not limited to the following:
(1)
The feasibility of hiring commercial fishermen to catch and hold live fish from eastern Long Island Sound or Block Island Sound and transplanting these fish to the Niantic River; (2)
Compensating commercial fishermen to return to the water any winter flounder taken in proximity to Niantic Bay in order to maximize survival ofNiantic origin fish; (3)
The specific time period for transplanting pre-spawn winter flounder to maximize the benefits to the Niantic River population; PERMIT # CT0003263 77
(4)
The size range, sex ratio and number offish required to be transplanted to enhance year class strength; (5)
The mechanisms by which transplanted fish could be retained in Niantic River ~nd/or methods by which the percentage oftransplanted fish remaining to spawn in the River will be determined; (6)
Means ofreducing egg loss due to predation iftransplanted fish are penned; and (7)
A discussion ofthe potential benefits to the Niantic River populations based on similar efforts in the U.S. or world-wide in transplanting winter flounder or related species.
(1)
The Permittee shall perform the study described in Section lO(H) above in accordance with the written scope ofstudy and schedule approved in writing by the Commissioner. The Permittee shall submit for the Commissioner's review and written approval a comprehensive and thorough report developed in accordance with the approved scope of study which describes in detail the investigation performed and includes but is not limited to the following:
(1)
The feasibility oftransplanted fish staying in the Niantic River versus straying into Long Island Sound; (2)
The potential impact ofthe transplant program on the survival ofyoung-of-year fish, including an evaluation ofpotential causes ofmortality that might prevent the formation ofa strong year class ofjuveniles and recommendations for enhancing survival; (3)
The potential for a transplant program to provide a meaningful contribution to stock abundance in the Niantic River; (4)
The potential for the "contributing stock" (donor stock) to be impacted by removal ofpre-spawn individuals for transplant to the Niantic River; and (5) a recommendation, as appropriate, for a pilot demonstration project to determine the feasibility and long term efficacy of a full-scale winter flounder stock augmentation program for the Niantic River population.
(1)
On or before 365 days after the issuance ofthis permit, the Permittee shall submit for the review and written approval ofthe Commissioner, a report that evaluates the following winter flounder population dynamics and impact assessment modeling issues:
(1)
Examination ofprojected trends (1960 - 2045) in flounder female spawning biomass in the Stochastic Population Dynamics Model (SPDM) under several scenarios in future (2005 - 2045) projections, including fishing mortality rates (F) including 0.20 through 0.50 at 0.10 increments coupled with conditional entrainment mortality (f) rates of 0.20 through 0.60 at 0.10 increments for Unit 2 operation through 2035 and Unit 3 through 2045; (2)
Examination ofthe potential array offactors in the Extended Ricker Model, including depensation, that might account for the persistent over-prediction of adult female spawners to the Niantic River stock from 1995 to 2002, according to the DEP Marine Fisheries Division Report ofJune 18, 2003; and (3)
Provide a discussion as to why annual mean February water temperatures from 1978 to 2001 were inversely related (P, 0.05) to both female adult recruitment and age 1 recruitment from those year-PERMIT # CT0003263 78
classes, but were statistically independent to larval and juvenile abundance indices from the same year classes, according to the DEP Marine Fisheries Division Report ofJune 18,2003.
(K)
Pursuant to Section 316(b) ofthe federal Water Pollution Control Act, 33 U.S.c. § l326(b), and Conn.
Gen. Stat. § 22a-430(a), the location, design, construction, and capacity ofthe Unit 2 and Unit 3 cooling water intake structures at the Millstone Power Station ("MPS") shall reflect the Best Technology Available
("BTA") for minimizing adverse environmental impacts. The COlnmissioner has determined that the current location, design, construction and capacity ofthe Unit 2 andUnit 3 cooling water intake structures at MPS does not represent the BTA for minimizing adverse environmental impacts. The Commissioner has made a determination that there have been findings that reducing cooling water intake flows through the use ofclosed cycle recirculation systems reflect the BTA for minimizing adverse environmental impacts. The information provided with the Permittee's application identified reducing cooling water intake flows through the use ofclosed cycle recirculation systems as the most effective technology to minimize adverse environmentaI impacts. This identification was based upon the technologies that exist and not on an evaluation ofwhether any particular technology can be implemented for the Unit 2 and Unit 3 cooling water intake structures at MPS. To determine the BTA that can be implemented for the Unit 2 and Unit 3 cooling water intake structures at MPS, the Permittee shall perform an evaluation in accordance with the following:
(1)
On or before December 15,2008 the Permittee shall submit for the Commissioner's review and written approval a proposed scope of study and schedule for a detailed and comprehensive evaluation of all technological and operational measures, individually or in combination
("measures"), for minimizing adverse environmental impacts associated with the use ofthe Unit 2 and Unit 3 cooling water intake structures at MPS ("Study"). At a minimum, the scope ofstudy shall include a proposal for:
(i) identifying all measures to be evaluated that are available to minimize adverse environmental impacts from impingement mortality and entrainment for the Unit 2 and Unit 3 cooling water intake structures at MPS, including but not limited to all fine-mesh screen technologies and closed-cycle recirculation systems. The evaluation of closed-cycle recirculation systems shall include but not be limited to closed-cycle recirculation systems that are capable of limiting the maximum cumulative daily intake flow to not more than 219 million gallons per day, or achieving a ninety percent (90%) or greater reduction in impingement mortality and entrainment from the calculation baseline derived pursuant to Sections 10(0) to 10(R), inclusive, below for Unit 2 and for Unit 3 at MPS; (ii) including a narrative description ofthe design and operation ofeach ofthe measures to be evaluated, the reasons for selecting each ofthe measures to be evaluated, the information used to demonstrate the performance ofeach ofthe measures, and whether or not each of the measures is in use at other facilities; (iii) identifying measures for which a detailed and comprehensive evaluation will not be performed. This shall include a detailed description ofthe proposed criteria and rationale for not fully evaluating a measure; (iv) identifying all permits, licenses or approvals required for constructing, implementing and operating each ofthe measures, including but not limited to any permits required under Sections 22a-32, 22a-42a, 22a-342, 22a-361, 22a-368 or 22a-430 ofthe Connecticut General Statutes; (v) identifying the level ofpreliminary design and engineering calculations, drawings and estimates to be prepared by a professional engineer licensed in Connecticut, for each of PERMIT # CT0003263 79
the measures to be fully evaluated, sufficient to detennine whether such measures can be implemented at MPS; (vi) identifYing all known or potential biological, chemical and environmental impacts from each ofthe measures to be evaluated, including but not limited to the waters ofthe state and to air quality. The proposal shall also include a detailed description ofthe proposed method for measuring such impacts and proposals to minimize such impacts to the extent practicable; (vii) estimating the cost for installing and operating each ofthe measures to be evaluated for the purposes ofevaluating the cost effectiveness of such measures; (viii) identifYing impacts, including costs and reliability, that each ofthe measures to be evaluated will have on Connecticut's electrical supply grid or other energy impacts and proposals to minimize such impacts to theextent practicable; (ix) identifYing siting, seismic, geologic and hydrologic impacts that each ofthe measures will have at MPS and proposals to minimize such impacts to the extent practicable; (x) a proposed schedule for the design, construction, installation and operation of each ofthe measures to be evaluated. Any downtime of generating lUlits to accommodate construction, installation or maintenance shall be scheduled to coincide with otherwise necessary downtime (e.g., for repair, overhaul, or routine maintenance ofthe generating units) to,the greatest extent practicable. Where additional downtime is required, the Permittee may propose coordinating scheduling ofthis downtime with regulatory or other entities to ensure that impacts to electric reliability and supply are minimized; (xi) identifYing the energy efficiency of each ofthe measures to be evaluated; (xii) identifYing any conflicts with all plant safety and human health and safety requirements established by the Nuclear Regulatory Commission (NRC) or any other state or federal agency associated with the measures to be evaluated. With respect to any such conflict, the scope ofstudy shall include a proposal to describe in detail the safety requirement at issue, the legal or other basis for the requirement; and all attempts that have or will be taken to resolve any such conflict; (xiii) a comprehensive evaluation, including supporting documentation, ofthe constraints or impediments that preclude the implementation ofeach ofthe measures evaluated. Such evaluation shall include all federal or state safety or other direct conflicts, engineering or locational constraints, energy impacts and any other constraints or impediments that preclude the implementation ofsuch measures; (xiv) calculating the reduction in impingement mortality and entrainment of all life stages of fish and shellfish that would be achieved by each ofthe measures evaluated. In proposing to calculate any such reduction, the Pennittee shall assess the total reduction in impingement mortality and entrainment against the calculation baseline determined in accordance with the Impingement Mortality and Entrainment Characterization Study; (xv) for any impacts or impediments related to the implementation of any measures described in sections lO(K)(l)(i) through (xiii), propose measures to the extent practicable to minimize the environmental impacts or impediments.
PERMIT # CT0003263 80
(Unless clearly specified otherwise in the Scope of Study, the requirements of subdivisions (i) to (xv), inclusive, shall apply to each measure to be evaluated).
(L)
The Commissioner may approve the Scope ofStudy as submitted or with such conditions or modifications that the Commissioner deems necessary or ifthe Scope of Study does not comply with the requirements of this Permit, the Commissioner may deny approval ofthe Scope ofthe Study. The Permittee shall perform the evaluation in accordance with the Scope of Study and schedule approved by the Commissioner pursuant to Section 10(K) and submit for the Commissioner's review and written approval a thorough comprehensive report by no later than January 20,2012. Ifthe Commissioner approves the Scope of Study after March 31, 2009 then the Permittee shall have two years and ten months from the date of approval ofthe Scope of Study to perform the evaluation and submit a thorough and comprehensive report. The report shall, at a minimum, (i) address in a comprehensive manner the issues in the Scope of Study approved by the Conunissioner pursuant to Section 10(K); (ii) describe in detail the findings of its evaluation; and (iii) include a recommendation ofthe preferred measure for installation at MPS in accordance with the findings ofthe evaluation.
(M)
Ifthe evaluation performed by the Permittee pursuant to Section 1O(L) does not fully evaluate whether a measure can be implemented at MPS or provide information on a measure to the satisfaction ofthe Commissioner, the Permittee shall provide any additional information requested by the Commissioner in accordance with a supplemental plan and schedule approved in writing by the Commissioner. Unless otherwise specified in writing by the Commissioner, the supplemental plan and schedule shall be submitted for the Commissioner's review and written approval on or before thirty (30) days after notice from the Commissioner that such plan and schedule is required.
(N)
On or before September 30,2008, the Permittee shall submit for the Commissioner's review and written' approval a comprehensive and thorough scope ofstl,Idy, including a proposed schedule for completion, for perfOlming an Impingement Mortality and Entrainment Characterization Study to provide information to characterize current impingement mortality and entrainment and to support the development ofa calculation baseline bas{:d on actual operations for evaluating impingement mortality and entrainment associated with the cooling water intake structures in use for Unit 2 and Unit 3 at MPS. In addition, this information shall also be incorporated as a separate part ofthe scope of study required by Section 10(K). The scope ofstudy shall include a proposal for providing all ofthe necessary details to accurately characterize impingement mortality and entrainment associated with MPS operations including but not limited to the following:
(1) a proposal to calculate baseline levels for impingement mortality and entrainment that are occurring with the existing once through cooling water intake structures in use for Unit 2 and Unit 3 at MPS without including any structural or operational controls, including but not limited to flow or velocity reductions, implemented in whole or in part for the purposes ofreducing impingement mortality and entrainment; (2) taxonomic identifications ofall life stages of fish and shellfish (including macrocrustaceans, molluscs and horseshoe crabs), as well as any other species that are protected under federal or state law (including, but not limited to, threatened or endangered species and species of special concern identified in Conn. Agencies Regs §§ 26-306-4 to 22a-306-6, inclusive) in the vicinity ofthe cooling water intake structure(s) for Unit 2 and Unit 3 at MPS that are susceptible to impingement and entrainment. All taxonomic identifications will differentiate those species previously identified in prior studies from those species not previously identified in prior studies; (3) a characterization of all life stages offish and shellfish (including macrocrustaceans, molluscs and horseshoe crabs), as well as any other species that are protected under federal or state law (including, but not limited to, threatened or endangered species and species ofspecial concern identified in Conn. Agencies Regs §§ 26-306-4 to 22a-306-6, inclusive), including but not limited to, a description ofthe abundance and temporal and spatial characteristics in the vicinity ofthe PERMIT # CT0003263 81
cooling water intake structure(s) for Unit 2 and Unit 3, based on data, including data acquired fi'om a minimum oftwo (2) years ofnew field studies or as otherwise deemed acceptable by the Commissioner, to sufficiently characterize annual, seasonal, and diel variations (taking into account the spring-neap tidal cycle) in impingement mortality and entrainment. All characterizations will differentiate those species previously identified in prior studies from those species not previously identified in prior studies. In providing this characterization the Permittee may propose to include previous study or data characterizing: (1) impingement mortality and entrainment at MPS; (2) the physical and biological conditions in the vicinity ofthe cooling water intake structures for Unit 2 and Unit 3; provided that the study or data were collected using appropriate quality assurance/quality control procedures, and that any such study or data are representative ofthe current operation ofMPS and ofbiological conditions at and in the vicinity of MPS, or are otherwise relevant to the proposed Impingement Mortality and Entrainment Characterization Study. In addition, the Permittee shall propose to make available, ifrequested by the Commissioner, any data study listed or referred to pursuant to this paragraph; (4) documenting the current impingement mortality and entrainment of all life stages of fish and shellfish (including macrocrustaceans, molluscs and horseshoe crabs), as well as any other species that are protected under federal or state law (including, but not limited to, threatened or endangered species and species of special concern identified in Conn. Agencies Regs §§ 26-306-4 to 22a-306-6, inclusive). Such documentation will differentiate those species previously identified in prior studies from those species not previously identified in prior studies. To put sampling results in context, any proposal shall indicate what impingement mortality and entrainment data currently exist and shall propose a method for considering the relationship between the existing data and the new data to be gathered as well as considering the relationship between impingement mortality and entrainment and current and historical abundance of species in question; (5) a sampling plan for a minimum oftwo (2) years or as otherwise deemed acceptable by the Commissioner ofnew field studies the Permittee proposes to conduct in order to ensure that the Pennittee has sufficient data to develop a scientifically valid estimate ofimpingement mortality and entrainment. Any proposed sampling plan shall provide for year round sampling including, but not limited to, entrainment sampling when species are likely to be entrained. Any proposed sampling plan shall include an explanation ofthe reasons for the sampling plan. Any proposed sampling plan shall further include all methods and quality assurance/quality control procedures for sampling and data analysis. The sampling and data analysis methods proposed shall be valid for a quantitative survey and shall include consideration ofthe methods used in other studies performed in Long Island Sound in the vicinity ofMPS. The proposed sampling plan shall include a description ofthe study area (including the area of influence for the cooling water intake structures for Unit 2 and Unit 3), provide a taxonomic identification ofthe sampled or evaluated biological assemblages (including all life stages offish and shellfish) and shall ensure that samples are collected during periods ofrepresentative operational flows for the cooling water intake structure for Unit 2 and Unit 3 and the flows associated with any such proposed samples.
Environmental and operational factors (e.g., the flow rate, temperature, salinity and weather) shall be recorded during entrainment and impingement monitoring. The raw data generated during sampling, in full and in summary, shall be provided to the Department in hard copy and in a usable electronic format, and any proposed sampling plan shall include a proposal for making the data available; (6) a proposal on how naturally moribund fish and shellfish that enter the cooling water intake structure for Unit 2 and Unit 3 would be identified and taken into account in assessing each measure evaluated; PERMIT # CT0003263 82
(7) an evaluation of low pressure fish spray wash technology and the feasibility of installing such technology in the Unit 2 intake structure, if necessary, to reduce impingement mortality; and (8) any other information necessary to char.acterize impingement mortality and entrainment at MPS.
(0)
The Commissioner may approve the Scope ofStudy as submitted or with such conditions or modifications that the Commissioner deems necessary or ifthe Scope of Study does not comply with the requirements of thisPermit, the Commissioner may deny approval ofthe Scope ofthe Study. The Permittee shall perform the study described in Section 10(N) in accordance with the Scope of Study and schedule approved by the Commissioner, in writing, and submit for the Commissioner's review and written approval a comprehensive and thorough report by no later than July 29,2011. Ifthe Commissioner approves the Scope of Study after December 31, 2008, then the Permittee shall have two years and seven months from the date of approval of the Scope of Study to perform the evaluation and submit a thorough and comprehensive report. The study shall, at a minimum, address in a comprehensive manner the issues in the Scope of Study approved by the Commissioner pursuant to this subsection. In addition, this study shall also be incorporated as a separate part ofthe report submitted pursuant to Section 10(L).
(P)
Ifthe study performed by the Permittee pursuant to Section 10(0) does not fully evaluate the baseline impingement mortality and entrainment impacts for the MPS Unit 2 and Unit 3 cooling water intake structures, the Permittee shall provide additional information in accordance with a supplemental plan and schedule approved in writing by the Commissioner. Unless otherwise specified in writing by the Commissioner, the supplemental plan and schedule shall be submitted for the Commissioner's review and written approval on or before thirty (30) days after notice from the Commissioner that such plan and schedule is required.
(Q)
On or before January I and July I of each calendar year following the issuance ofthis Permit, and continuing until all actions required by Sections 10(K) to 10(P), inclusive, ofthis permit have been completed as approved to the Commissioner's satisfaction, the Permittee shall submit progress reports to the Commissioner describing the status ofthe actions the Permittee has undertaken pursuant to Sections lOCK) to 10(P), inclusive, ofthis permit:
(1)
Each progress report shall summarize activities initiated, in progress, and/or completed by the Permittee during the preceding six (6) month period, including a summary ofthe Permittee's progress towards achieving the interim milestones identified in I0(Q)(2) below; (2)
Upon completion ofthe following individual interim milestones in accordance with the schedule below, the Permittee shall submit an interim milestone report to the Commissioner providing a summary ofthe interim milestone completed and attaching the listing resulting from achievement ofthe interim milestone. For interim milestones 1O(Q)(2) (ii-v), the summary shall iJiclude a detailed explanation ofthe reasons for proceeding or not proceeding with each ofthe technological and operational measures identified in the listing. Any explanation ofthe reasons for proceeding or not proceeding with each ofthe technological and operational reasons identified in such listing shall identify any relevant considerations delineated in IO(K)(I) above:
PERMIT # CT0003263 (i)
(ii) within ninety (90) days ofthe approval ofthe Scope of Study pursuant to lO(L),
a listing ofall technological and operational measures to be initially screened as part ofthe study to be performed pursuant to Section 10(K)(1 ) above; within nine (9) months ofthe submittal pursuant to 1O(Q)(2)(i) above or upon the submittal of additional information requested by the Commissioner pursuant to 1O(Q)(5), whichever is later, a listing, based on the initial screening process 83
(iii)
(iv)
(v) described in the Scope of Study, of all technological and operational measures for which further screening will be perfonned; within nine (9) months ofthe submittal pursuant to 10(Q)(2)(i) above or upon the submittal ofadditional information requested by the Commissioner pursuant to 10(Q)(5), whichever is later, a listing, based on the initial screening process described in the Scope of Study, of all technological and operational measures for which further screening will not be performed; within nine (9) months ofthe submittal pursuant to 10(Q)(2) (ii) and (iii) above' or upon the submittal of additional infonnation requested by the Commissioner pursuant to 1O(Q)(5), whichever is later, a listing of all technological and operational measures for which a detailed and comprehensive evaluation will be perfonned pursuant to Section 1O(K)(l)(i) above and the screening process described in the Scope of Study; and within nine (9) months ofthe submittal pursuant to 10(Q)(2) (ii) and (iii) above or upon the submittal of additional information requested by the Commissioner pursuant to 10(Q)(5), whichever is later, a listing of all technological and operational measures for which a detailed and comprehensive evaluation will not be performed pursuant to Section lO(K)(l)(iii) above and the screening process described in the Scope of Study.
(3)
The Pennittee may propose alternate interim milestone dates to the Department for the Commissioner's review and approval. Any such request shall provide an explanation ofthe reasons for proposed changes to the interim milestone dates. Any change in interim milestone dates shall not change the dates specified in Sections 10(L) and (0). Any such request for a change in an interim milestone date shall not be treated as an interim compliance date or a notification ofnoncompliance pursuant to Section 10(W) and (Y) ofthis Pennit; (4)
All progress reports and attachments shall be provided by the Pennittee for the sole purpose of informing the Commissioner ofthe Permittee's progress towards perfonning the tasks specified by the Scopes of Study pursuant to Sections '10(K) and 10(N). The review to be conducted by the Commissioner pursuant to Section 10(R) below shall be based solely on the submittals made by the Pennittee pursuant to Section lO(L), 10(M), 10(0) and 10(P) above; and (5)
If a specific report submitted pursuant to this section 1O(Q) does not infonn the Commissioner to the Commissioner's satisfaction ofthe Pennittee's progress toward performing the tasks specified in this paragraph 10(Q), upon written request by the Commissioner, the Permittee shall submit the additional information requested by the Commissioner.
(R)
Based upon the Commissioner's review and consideration of all the infonnation included in the reports submitted pursuant to Sections 10(L) and 10(0), any supplemental infonnation provided pursuant to Sections 10(M) and 10(P), any other infonnation and any subsequent law or regulation that is in effect at such time, the Commissioner shall make a subsequent BTA detennination, consistent with Section 316(b) of the federal Water Pollution Control Act, 33 U.S.C. § 1326(b), and Conn. Gen. Stat. § 22a-430(a), that requires the Pennittee to implement measures that reflect the BTA for the Unit 2 and Unit 3 cooling water intake structures at MPS to minimize, to the greatest extent, adverse environmental impacts. The Commissioner shall provide notice ofsuch detennination and modifications to this pennit to implement any requirement associated with this subsequent BTA detennination, through a pennit proceeding, including public notice and an opportunity for a public hearing.
PERMIT # CT0003263 84
(S)
On or before 120 days after chemical cleaning and/or chemical decontamination ofthe facilities Unit 2 or Unit 3 Steam Generators discharge(s) has been initiated, the Permittee shall sample and analyze the final effluent and use the analytical results to complete Attachment 0 of the Permit Application, Table I, Table 2 (metal, phenols and cyanide) and Table 3 (constituents known or suspected present) and submit the attachment to the Commissioner for review.
(T)
On or before January 31 of each calendar year the Pelmittee shall submit to the Commissioner an administrative report summarizing all discharges that have been redirected to an alternative pathway, as authorized under Section 4(H) ofthis permit, within the previous twelve month period. The report shall list the date, volume, and location ofthe redirected discharges. The report shall indicate which one ofthe factors listed in Section 4, paragraph (H) ofthis permit, precipitated the redirection of any discharge to an alternative location. In addition, the report shall summarize any violations ofthe effluent limitations specified within this permit for this category of discharges.
(U)
On or before ninety (90) days after the issuance ofthis permit, the Permittee shall submit for the Commissioner's review and written approval, a scope of study and schedule to evaluate changes in the outfall structure to further minimize the areal extent ofthe thermal zone of influence, the pooling of undiluted thermal effluent adjacent to the discharge and the incidence offish migration into the quarry associated with reduced flow velocity. This scope ofstudy shall include a proposal to perform modeling of the thermal plume and a schedule to perform field temperature measurements coincident with adjustments to the outfall release cross-sectional area ofthe quarry cuts.
(V)
The Permittee shall perform the study described in Section IO(U) above in accordance with the scope of study and schedule approved in writing by the Commissioner. The Permittee shall submit for the Commissioner's review and written approval a comprehensive and thorough report describing the results of the study, including but not limited to thennal plume mapping reflecting current and alternative outfall release cross-sectional areas. The thermal plume mapping shall include, at a minimum:
(I) a map ofthe nearfield area, circumscribed by a radial distance of2,000 feet extending outward from the location ofthe Quarry Cut Discharge (DSNOOI-I) into the receiving water body, at a scale ofno greater than 100 feet per inch, delineating eel grass beds, lobster habitat and other shellfish areas. Such map shall also delineate the location of any watercourses, discharges, intakes, designated tidal wetlands, shellfish beds, and structural features such as bridges and culverts; and (2) thermal isotherms delineating the areal extent ofthe plume equivalent to a delta T of I.5°F and a maximum temperature of 83OF. Isotherms shall be labeled for both maximum temperature and maximum temperature increase beginning at the quarry cut and at delta 1.5 OF intervals for summer months and delta 4°F for other seasons. Isotherms should be labeled from point of discharge until the thermal component ofthat plume has been reduced to ambient temperatures. Nearfield temperature increases should be well documented to determine the localized effect ofhigh temperature discharges.
(3)
Plots ofthe depth ofwater below the thermal plume depicted as the difference between water depth and the depth ofthe thermal plume such that vertical zones offish passage below the plume and locations to where the plume extends to the bottom can be quantified.
This report shall include recommendations to modifY the current mixing zone and quarry cut cross-sectional area ifwarranted based on the results ofthe field measurements. The report shall also include a detailed schedule to implement all approved recommendations at MPS.
PERMIT # CT0003263 85
(W)
Force Majeure.
(1)
"Force Majeure" is defined for the purposes ofthis permit as an event arising from causes beyond the control ofthe Permittee and of any entity controlled by the Pennittee, including but not limited to Permittee's contractors and subcontractors, that could not have been avoided or overcome by due diligence and that delays or prevents the performance of any obligation under this permit specified as subject to "Force Majeure". "Force Majeure" shall include, but shall not be limited to, acts of God including floods, blizzards, hurricanes, and other extreme weather; labor strikes; fires; judicial orders; failure of a permitting authority to grant the necessary permit or authorization where the Permittee has taken all necessary steps to obtain the permit or authorization; orders or directives by governmental officials or ISO New England that direct the Permittee to operate MPS to supply electricity; failure ofa permitting authority, including but not limited to the ISO New England's or the U.S. Nuclear Regulatory Agency's failure to grant the Permittee's request for an outage to permit installation oftechnology; and adjustments to the refueling outage cycle due to unanticipated extended mid-cycle outages resulting from large equipment failures. "Force Majeure" does not include unanticipated or increased costs, changed [mancial circumstances or non-attainment ofthe requirements ofthis permit. For the purposes ofthis paragraph, the Permittee shall use all diligent and reasonable efforts to fulfill its obligation including efforts by the Permittee to anticipate any potential Force Majeure event and to address the effects of any such event (a) as it is occurring and (b) after it has occurred such that the delay is minimized to the greatest extent possible.
(2)
To the extent not otherwise required by regulation, when circumstances occur that the Permittee believes constitutes a Force Majeure event, the Permittee shall notify the Commissioner orally of the circumstances within three (3) business days after the Permittee first becomes aware ofthose circumstances. Within seven (7) days after the Permittee first becomes aware of such circumstances, the Permittee shall supply to the Commissioner in writing an explanation ofthe causes(s) of any actual or expected delay, the anticipated duration of any delay, the measures taken and to be taken by Permittee to prevent or minimize the delay, and the timetable or schedule for implementation ofsuch measures. Failure to comply with the notice provisions ofthis paragraph may, as determined by the Commissioner given the reason for failing to comply with the notice provision, constitute a waiver ofthe Permittee's rights to assert a claim ofForce Majeure with respect to the circumstances in question. The Commissioner will notify the Permittee in writing of the length ofthe extension, if any, for performance ofthe obligations affected by the Force Majeure event. Ifthe Commissioner determines that a delay is or was caused by a Force Majeure event, the time for performance will be extended by the Commissioner for such time as the Commissioner deems necessary to complete those obligations.
(3)
In proceedings on any dispute regarding a delay in performance, Permittee shall have the burden of production and proof (1) that the delay is or was caused by a Force Majeure event, and (2) that the amount ofadditional time requested is necessary to compensate for that event.
(4)
Delay in achievement of any requirement in this permit or other relevant documents shall not automatically justify or excuse delay in achievement of any subsequent or other requirement.
(X)
The Permittee shall use best efforts to submit to the Commissioner all documents required by Section 10 of this permit in a complete and approvable form. Ifthe Commissioner notifies the Permittee that any document or other action is deficient, and does not approve it with conditions or modifications, it is deemed disapproved, and the Permittee shall correct the deficiencies and resubmit it within the time specified by the Commissioner or, ifno time is specified by the Commissioner, within thirty days ofthe Commissioner's notice of deficiencies. In approving any document or other action under this Compliance Schedule, the Commissioner may approve the document or other action as submitted or performed or with such conditions PERMIT # CT0003263 86
or modifications as the Commissioner deems necessary to carry out the purposes ofthis section ofthe permit. Nothing in this paragraph shall excuse noncompliance or delay.
(Y)
Dates. The date ofsubmission to the Commissioner of any document required by this section ofthe permit shall be the date such document is received by the Commissioner. The date of any notice by the Commissioner under this section ofthe permit, including but not limited to notice of approval or
, disapproval ofany document or other action, shall be the date such notice is personally delivered or the date three days after it is mailed by the Commissioner, whichever is earlier. Except as otherwise specified in this permit, the word "day" as used in this section ofthe permit means calendar day. Any document or action which is required by this section only ofthe permit, to be submitted, or performed, by a date which falls on, Saturday, Sunday, or, a Connecticut or federal holiday, shall be submitted or performed on or before the next day which is not a Saturday, Sunday, or Connecticut or federal holiday.
(Z)
Notification ofnoncompliance. Except as otherwise provided in this permit, in the event that the Permittee becomes aware that it did not or may not comply, or did not or may not comply on time, with any requirement ofthis section ofthe permit 0; ofany document required hereunder, the Permittee shall immediately notify the Commissioner and shall take all reasonable steps to ensure that any noncompliance or delay is avoided or, if unavoidable, is minimized to the greatest extent possible. In so notifying the Commissioner, the Permittee shall state in writing the reasons for the noncompliance or delay and propose, for the review and, written approval ofthe Commissioner, dates by whiCh compliance will be achieved, and the Pennittee shall comply with any dates that may be approved in writing by the Commissioner.
Notification by the Permittee shall not excuse noncompliance or delay, and the Commissioner's approval of any compliance dates proposed shall not excuse noncompliance or delay unless specifically so stated by the Commissioner in writing.
(AA)
Notice to Commissioner of changes. Within fifteen days ofthe date the Pennittee becomes aware of a change in any information submitted to the Commissioner under this section ofthe perinit, or that any such information was inaccurate or misleading or that any relevant information was omitted, the Permittee shall submit the correct or omitted information to the Commissioner.
(BB)
Submission ofdocuments. Any document, other than a discharge monitoring report, required to be submitted to the Commissioner under this section ofthe permit shall, unless otherwise specified in writing by the Commissioner, be directed to:
Charles Nezianya Department ofEnvironmental Protection Bureau ofMaterials Management and Compliance Assurance Water Permitting and Enforcement Division 79 Elm Street Hartford, CT 06106-5127 (7/J b->lhA"' 1./1.
/; c/O I 0 This permit is hereby issued on (JCfJ ifV-rr I f.K/'-
Susan Frechette Deputy Commissioner PERMIT # CT0003263 87
DATA TRACKING AND TECHNICAL FACTSHEET Permittee: Dominion Nuclear Connecticut, Inc.
PERMIT. ADDRESS. AND FACILITY DATA PAMS Company ID: 115314 PERMIT #: CT0003263 APPLICATION#: 199701876 FACILITY ID. 152-003 Mailing Address:
Location Address:
Street:
Millstone Power Station Street:
Millstone Power Station Rope Ferry Road Rope Ferry Road City:
Waterford ST:
CT Zip: 06385 City:
Waterford ST:
CT Zip:
06385 Contact William D. Bartron DMR Contact William D. Bartron Name:
Supervisor, Nuclear Licensing Supervisor, Nuclear Licensing Phone No.:
(860) 447-1791 Phone No.:
(860) 447-1791 PERMITINFORMATION DURATION TYPE 5 YEAR...L New 10 YEAR Reissuance...L 30 YEAR Modification CATEGORIZATION POINT (x)
NON-POINT ()
GIS #
NPDES(x)
PRETREAT()
GROUND WATER(UIC) ()
GROUND WATER (OTHER) ()
NPDES MAJOR(MA)...L NPDES SIGNIFICANT MINOR QL PRETREATSIU (SI)
NPDES or PRETREATMENT MINOR (MI)
PRETREATSIGNIFICANTINDUS USER(SIU)
PRETREAT CATEGORICAL (CIU)
COMPLIANCE SCHEDULE YES...L NO POLLUTION PREVENTION TREATMENT REQUIREM,ENT_
WATER CONSERVATION WATER QUALITYREQUIREMENT_
REMEDIATION OTHER~
PERMIT # CT0003263 88
OWNERSHIP CODE Private....L Federal State Municipal (town only) _
Other public DEP STAFF ENGINEER: Charles Nezianya/Jim Grier PERMIT FEES Discharge Code DSN Number Annual Fee
- 118000c DSN001-A
$8,175.00 101060z DSN 001-B
$8,175.00 101060z DSN001-C
$8,175.00
- 1080000 Tables FW &
$2,662.50 HH
- Decommissioningactivity related dischargers) originating from Unit 1.
- Individual stormwater discharges are included in the permit.
FOR NPDES DISCHARGES:
Drainage basin Code: 2000 Present/Future Water Quality Standard: SA/SA NATURE OF BUSINESS GENERATING DISCHARGE Electricity generation from steam produced as a result ofthefission ofnuclearfuel. Cooling water, stormwater and process wastewater discharges resultfrom this activity.
Two Nuclear Electrical Generating Units (Units 2 and 3) are presently in operation.
Unit 1 has been shut down and under going decommissioning.
PROCESSAND TREATMENT DESCRIPTION (by DSN)
See detailed NPDES Fact Sheet RESOURCES USED TO DRAFTPERMIT x
Federal Effluent Limitation Guideline 40 CFR 423 name ofcategory x
Performance Standards
..:L Department File Information Connecticut Water Quality Standards Anti-degradation Policy Coastal Management Consistency Review Form
..:L Other - Explain BASIS FOR LIMITATIONS, STANDARDS OR CONDITIONS PERMIT # CT0003263 89
Best Available Technology (BAT)
Best Professional Judgement (See Other Comments)
Case by Case Determination (See Other Comments)
Section 22a-430-4(s) ofthe Regulations ofConnecticut State Agencies In ortler to meet in-stream water quality (See General Comments)
Anti-degradation policy
GENERAL COMMENT
S Water quality based discharge limitations were included in this permitfor consistency with Connecticut Water Quality Standards and criteria, pursuant to 40 CFR 122.44(d). Each parameter was evaluatedfor consistency with the available aquatic life criteria (acute and chronic) and human health (fish consumption only) criteria, considering the zone ofinfluence allocated to the facility where appropriate. The statisticalprocedures outlined in the EPA Technical Support Document for Water Oualitv-based Toxics Control (EPA/505/2-90-001) were employed to calculate the limits. The most restrictive ofthe water quality limitations, aquatic life acute, aquatic life chronic, and human health, was compared with limitations developed according to State and Federal Best Available Technology (BAT).
OTHER COMMENTS See NPDES Fact Sheetfor additional information on the basis for limitations/conditions in the draft NPDESpermit.
PERMIT # CT0003263 90