ML061730244
| ML061730244 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 06/26/2003 |
| From: | Akielaszek J State of VT |
| To: | Thayer J Entergy Nuclear Vermont Yankee, Office of Nuclear Reactor Regulation |
| References | |
| %dam200611, ID-9-0036-2, NS75-0006 | |
| Download: ML061730244 (20) | |
Text
S
"-State of Vermont 3
W AGENCY OF NATURAL RESOURCES O**a,"r'mw~t & Fah " Wo Department or Environmental Conservation Dpaurnet of Forests. Paiks &M Rocatn Wastewater Managerment Division Demrnent of Envlronwent Constrva.on t
1 103 South Maip St. - Sewing Bldg.
sao CGoogist Waterbury VT 05671-0405 RELAY SERVICE FOR THE HEARING IMPAIRED 1-$W2S"O191 T>IW6 JUL 01 2003 Telephone: (802) 241-3822
.. s.-wi Vok*>T0r FAX: (802) 241-2596 June 26, 2003 Jay Thayer B
Entergy Site Vice President Entergy Nuclear Vermont Yankee, LLC 185 Old Ferry Road Brattleboro VT 05302 Re:
Final ID-9-0036-2
':"j.
Dear Mr. Thayer:
Enclosed is the final Indi.rect Discharge Permit ID-9-0036-2 issued to Entergy Nuclear Vermont Yankee, LLC, which I have signed in behalf of the Commissioner 6f the Department of Environmental Conservation.
No comments on the draft permit were rpcelved during the public notice period. Therefore, the final permit is essentially the same as the draft which we sent to you for your review.
Please read the entire permit carefully and become familiar with all of Its terms and conditions.
A set of the approved plans is also enclosed. Please note that no changes shall be made to the plans without prior written approval from the Secretary.
Enclosed please also find a DEC Permit Customer Survey Form. Please complete the form and send it to the Environmental Assistance Division at the address listed on the form. Thank you.
Please feel free to call me at 802-241-3824 If you have any questions.
Sincerely, John J. Aklelaszek, Chief Indirect Discharge Permit Section
Enclosures:
Final ID-9-0036-2; Approved Plans; DEC Customer Survey cc w/permit:
Lynn DeWald, Environmenial Spdciallst Elise Zoli, Esq., Goodwin Procter John Goodell, P.E., SVE Associates Daniel Wilcox, Regional Engineer Permit File ID-9-0036 K:\\Indirect\\lddrafts\\M-O36\\,O.0036-2.fl.doc Regional Offices -Barre/Essex Jct./Pittstord/RutlandlSpringfield/St. Johnsbur/
AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION 103 SOUTH MAIN STREET WATERBURY, VERMONT 05676 AMENDED INDIRECT DISCHARGE PERMIT File Code: LCT-9-0036 Permit No.: ID-9-0036-2 PIN: NS75-0006 SECTION A - "ADMINISTRATION" In compliance with provisions of 10 V.S.A. §1263, and in accordance with the following conditions, the permittee:
Entergy Nuclear Vermont Yankee, LLC 185 Old Ferry Road Brattleboro, Vermont 05302 is authorized to indirectly discharge treated domestic sewage and other laboratory wastes defined herein from subsurface and mound disposal systems serving the Vermont Yankee Nuclear Power Plant to the ground water and Indirectly into the Connecticut River in the Town of Vernon, Vermont. This permit amendment approves the connection of the Power Uprate Building to the Construction Office Building (C.O.B.) sewage disposal system (a.k.a. South System) and also approves the construction of the replacement disposal field for the C.O.B.
sewage disposal system along with modifications to the existing septic tank and pump station for that system. The approved plans for construction are listed in Condition C2. The construction inspection requirements are contained In Condition C3 and certification of construction Is required under Condition C4.
The permit acknowledges that both primary and alternate disposal fields serving the C.O.B. may be utilized during plant outages (see Condition B2). The permit now requires annual alternation of the primary and alternate disposal fields serving the C.O.B. (see Condition D1).
Changes have been made to Condition D2 to add an Inspection requirement for all septic tank effluent filters. Condition D3, Operation During Plant Outages,. has been modified to Include the C.O.B.
system. The monitoring requirements for groundwater (E3) have been modified to reflect the requirements contained in the Indirect Discharge Rules, effective April 30, 2003. References to the Vermont Yankee Nuclear Power Corporation have been removed from Conditions A9 and B2. No other substantive changes have been made to the permit.
Al.
Permit Summary:
Expiration Date Type of Waste Treatment System Disposal System Town Drainage Basin Receiving Stream Drainage Area Stream Flow:
Low Median Monthly (LMM) 7Q10 Total Disposal Capacity Dilution Ratio (stream flow: effluent)
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 2 September 30, 2005 Domestic Sewage/Laboratory Waste Septic Tanks Leachfields/Mounds Vernon Lower Connecticut River Connecticut River 6266 mi 2 1,971,129,600 gpd (est) 984,918,500 gpd (est) 14,347 gpd (normal operation) 30,904 gpd (during plant outages) 17,390: 1 at LMM (normal operation) 68,650: 1 at 7Q10 (normal operation) 63,782: 1.at LMM (during plant outages) 31,870:1 at 7Q10 (during plant outages)
A2.
Compliance Schedule:
The following schedule summarizes the actions and requirements necessary for compliance with the conditions of this permit. The permittee shall complete the requirements in accordance with the dates indicated. See the designated section for specific details.
Condition # and Description Schedule Date A3.
Apply for renewal of Indirect Discharge Permit C3.
Submit a copy of a contract with a Vermont Registered P.E. to provide inspection of system construction C4.
Submit inspecting Engineer's Certification of Construction By June 30, 2005 Before the start of any construction on the collection, treatment, and disposal system Within 30 days following completion of construction
Entergy Nuclear.Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 3 A2.
Compliance Schedule (continued):
'Condition # and Description Schedule Date D2.
Have a Verrront Registered Professlonal engineer complete an inspection of all sewage collection, treatment and disposal systems.
D2.
Submit Annual Inspection Report Submit schedule for implementing engineers recommendations D3.
Submit tabulation of ponding levels D4.
Notify Secretary of pumping of tanks E2(A) Collect and analyze effluent samples E2(C) Record water meter readings E3(A) Collect and analyze groundwater monitor samples E3(B) Measure and record the depths to groundwater in the monitor wells E4(A) Collect and analyze receiving stream samples E2(A), E2(C), E3(A), E3(B), E4(A)
Submit results of monitoring E5.
Submit evaluation by a water quality specialist of all required effluent, ground, and surface water quality data and biological, monitoring data.
Annually In April Annually prior to June 1st Annually by July 15th As specified As Specified As Specified As Specified As Specified As Specified As Specified By the 15th of the second*
month following the date of sampling June 30,2005
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 4 A3.
Expiration Date:
This permit, unless revoked or amended, shall be valid until September 30. 2005 despite any intervening change In Water Quality Standards or the classification of receiving waters. Renewal of this Indirect Discharge permit will be subfect to all rules applicable at the time of application for renewal, including.biological standards-to determine significant alteration of aquatic biota.
The permittee shall apply for an Indirect Discharge Permit renewal by June 30, 2005.
A4.
Effective Date:
This permit'becomes effective on the date of signing.
A5.
Revocation:
The Secretary may revoke this permit in accordance with 10 V.S.A.§1 267.
A6.
Transfer of Permit:
This permit is not transferable without prior written approval of the Secretary.
The permittee shall notify the Secretary immediately, in writing, before any sale, lease or other transfer of ownership of the property from which the permitted discharge originates. The proposed transferee shall make application for a permit to be reissued in their name. Failure to apply shall be considered a violation of this permit. Responsibility for compliance with the conditions of this permit shall be the burden of the permittee until such time as transfer of the permit to the transferee is complete. This permit shall be transferred only upon showing by the permittee or proposed transferee of compliance with the following conditions:
- a.
The transferee shall be a legal entity,-financially and technically competent to operate, inspect, maintain and replace the system;
- b.
If the transferee is a corporation or other legal entity, it shall be
-demonstrated that such legal entity has legal authority to raise revenues for the proper operation, Inspection, and maintenance of the system; and
- c.
The transferee shall provide a written agreement containing a specific date for transfer of permit responsibility, coverage, and liability between the current and new permittee(s) to the Secretary.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 5 A7.
Minor Modifications of Permits:
The Secretary may modify this permit without requiring a permit application, a public notice, or a public hearing to correct typographical errors, or to increase the monitoring frequency in accordance with Condition E(8) of this permit.
A8.
Indirect Discharqe Rules:
This Indirect discharge was reviewed and originally qualified for an Indirect Discharge Permit in accordance with Section 14-B-201 (F), In Situ, In-Ground Effluent Testing, of the Indirect Discharge Rules.
The New Warehouse sewage treatment and disposal system was approved under Water Supply and Wastewater Disposal Permit WW-2-0339. This indirect discharge permit Incorporates by reference all of the terms and conditions of that permit with the exception of Condition #6 of WW-2-0339 which has been superseded by Condition D3 of this permit.
This indirect discharge was reviewed and qualified for an Indirect Discharge Permit In accordance with Section 14-403 (C) of the Indirect Discharge Rules for new indirect discharges of sewage. No Increase In sewage volume is allowed without the written approval of the Secretary.
A9.
REiht of Agency To Inspect:
In accordance with the permittee's security requirements and standard protocol for site inspections, the permittee shall permit the Secretary or the Secretary's authorized representative upon the presentation of their credentials:
- a.
To enter upon permittee's premises in which any effluent source treatment or disposal system is located or in which any records are required to be kept under the conditions of the permit;
- b.
To have access to and copy any records required to be kept under conditions of this permit;
- c.
To inspect any monitoring equipment or method required in this permit;
- d.
To sample any discharge of waste, or groundwater or surface water;, and
- e.
To inspect at reasonable times, any collection, treatment, pollution management and disposal facilities required by this permit.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 6 A10.
Permit Availability:
A copy of the approved plans and this permit shall remain at the office of the permittee and, upon request, shall be made available for Inspection by
-authorized representatives of the Secretary..
Al 1.
Minor Modifications To System:
Minor modifications of the engineering design which do not reduce the treatment effectiveness or increase the capacity of the system may be approved in writing by the Secretary without permit amendment.
.Before making modifications to the treatment and/or disposal system the permittee shall submit plans to the Secretary for review and approval. These plans must be approved before any of the modifications or additions are made.
Al 2. Correction of Failed Systems:
The Secretary may, upon discretion, issue. an Amendment to the Indirect Discharge Permit for the design and reconstruction of a failed wastewater disposal system where the replacement system design was not previously approved..
Before reconstruction of the failed system the permittee shall submit plans to the Secretary for review and approval. These plans must be approved before any reconstruction occurs. Due to the urgency of the need to correct failed disposal systems, the Secretary will process these Amendments as soon as possible.
A13.
Operating Fees:
This indirect Discharge is subject to operating fees. The permittee shall submit the operating fees in accordance with procedures provided by the Secretary.
SECTION B "INDIRECT DISCHARGE" B1.
Location of lhdirect Discharqe:
The indirect discharge is located on the Connecticut River In the Town of Vernon In Windham County, Vermont with a drainage area of 6,266 square miles at the
'point of compliance. The indirect discharge can be located on-the USGS Brattleboro Vermont 15' quadrangle map at Latitude N 420 46' 54" and Longitude W 720 30' 49".
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2.
Page 7 B2.
Nature of Indirect Discharge:
The discharge consists primarily of treated-domestic sewage and may also include small volumes of laboratory waste, primarily pH buffer solutions, acetic acid (5% solution) and potassium. iodide (0.3%.solution).
The wastewater is discharged from subsurface and mound wastewater disposal systems with the following approved capacities:
Normal Operation "Plant Outage" Disposal System Design Capacity (qpd)
Design Capacity (qgd)
Main (North) System (1) 4,950 14,900 C.O.B. (South) System (2) 4,607 9,214 New Office Building System 2,160 2,160 New Warehouse System (3) 2,000 4,000 Governor Hunt House System 540 540 Gatehouse #1 System 90 90 TOTALS 4,347 30,904 (1) During plant outages, the Main (North) system may be loaded to a maximum of 14,900 gallons per day by loading both existing leachfields (combined 9,900 gpd) and the new 5,000 gpd leachfield.
The outage lasts approximately one month and occurs every 18 months. During these outages the permittee adds temporary workers to perform maintenance on the plant.
(2) During plant outages, the COB (South) System may be loaded to a maximum of 9,214 gallons per day by loading both leachfields.
(3) During plant outages, the New Warehouse System may be loaded to a maximum of 4,000 gallons per day. by loading both existing leachfields.
The low median monthly flow (LMMF) of the Connecticut River is approximately 1,971,129,600 gpd and the 7Q10 flow is approximately 984,918,500 gpd. During normal operation, the stream flow/effluent dilution ratio is 137,390:1 at LMMF and 68,650:1 at 7Q10. During plant outages the stream flow/effluent dilution ratio is 74,956:1 at LMMF and 37,454:1 at 7Q10.
Also, please see the previous Fact Sheet for this permit.
Entergy Nuclear Vermont Yankee; LLC Discharge Permit ID-9-0036-2 Page 8 SECTION C "SYSTEM CONSTRUCTION" C1.
Approved Plans - Existing Systems:
A listing of the approved plans for construction of the subsurface sewage disposal systems at Vermont Yankee whose discharges are authorized by this permit can be found in the fact sheet previously issued for this permit.
C2.
Approved Plans - Construction Office Building (South System) Septic Tankage and Pump Station Modifications, Force Main and Northwest Leachfield Construction:
The sewage treatment, and disposal system shall be constructed in accordance with the following plans and specifications for Vermont Yankee prepared by SVE Associates and stamped by John Goodell, P.E., and which have been stamped
"'APPROVED" by the Department of Environmental Conservation. No changes shall be made to the sewage treatment and disposal system as shown on these plans without prior written approval from the Secretary.
Last Sheet Title Date Revised I of 5 Site Plan For Northwest Leachfield 2/11/03 4/30/03
& Force Main From (COB) South Sewage Disposal System -Entergy Nuclear Vermont Yankee, LLC 2 of 5 Site Plan For Northwest Leachfield 2/11/03 5/12/03 (COB) South Sewage Disposal System - Entergy Nuclear Vermont Yankee, LLC 3 of 5 Site Plan For South Leachfield 2/11/03 Pump.Station & Septic Tank (COB) South-Sewage Disposal System - Entergy Nuclear Vermont Yankee, LLC 4 of 5 Profile, Cross-Section Details &
2/11/03 5/12/03 Notes for (COB) South Sewage Disposal System -Entergy Nuclear Vermont Yankee, LLC
Entergy Nuclear Vermont-Yankee; LLC Discharge Permit ID-9-0036-2 Page 9 C2.
Approved Plans - Construction Office Building (South System) Septic Tanka-ge, Pump Station, Force Main and Northwest Leachfield (continued):.
Last Sheet Title Date.
Revised 1 of I Temporary Building - Entergy Nuclear 1/22/03 1/31/03 Vermont Yankee, LLC C3.
Construction Inspection:
Before the start of any construction on any portion of the sewage treatment and disposal system, the permittee shall submit a copy of a signed contract with a Vermont Registered Professional Engineer to provide inspection of the approved construction to the Secretary. The contract, at a minimum, shall provide for the following items:*
- a.
The names and qualifications of personnel providing inspection.
- b.
The location of the force mains and the leachfield shall be staked out by a Vermont Registered Professional Engineer or surveyor in accordance with the approved plans.
- c.
The engineer or designated representative shall be present for the
- pressure and leakage testing of all force mains.
- d.
The engineer or designated representative shall verify that the fill material meets one of the mound sand sieve analyses specifications listed on the approved plan. Sieve analyses shall be performed once per 500 cubic
.yards of manufactured sand or.once per 50 cubic yards of bank run sand.
- e.
The engineer or designated representative shall inspect the preparation of the Infiltration surface of the disposal fields before the crushed stone and distribution piping is installed.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 10 C3.
Construction Inspection (continued):
- f.
The engineer or designated representative shall, prior to backfilling the distribution piping in the disposal field, supervise the testing of the distribution network with clean water to assure that there is complete and even distribution. The minimum pressure at-the end of each distribution line shall be one (1) psi (or 2.3 feet of head). The difference in discharge rate between any two orifices in the same disposal fieldshall not exceed' 15%. Differences in discharge rates greater than 15% and/or pressures less than one psi will require corrective action.
Squirt heights for all distally located orifices must be measured during the testing procedure.
- g.
The engineer shall provide general inspection of the work at reasonable intervals to assure that construction is in accordance with the approved plans and specifications.
- h.
The engineer shall maintain written reports of all inspections performed including dates, items inspected and comments. Copies of all inspection reports shall be submitted to the Secretary a minimum of once every two weeks.
L.
When the system construction is complete and before the inspecting engineer has issued their certification, the permittee shall arrange an inspection of the system with the engineer and the representatives of the Secretary.
C4.
Construction Certification:
Within 30 days following completion of construction of the wastewater collection, treatment and disposal system, the engineer shall certify in writing to the Secretary that the construction is complete and in accordance with approved plans and specifications, and shall submit As-Built drawings for the system. The numerical results of the pressure and leakage testing of the force mains and the results of the distribution testing of the mound leachfield shall be included in the inspecting engineer's certification of construction. The engineer's certification of construction shall be subject to the review and acceptance of the Secretary.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 11 SECTION D "SYSTEM OPERATION" D1.
General Operatin-q Requirements:
The wastewater disposal system shall be operated at all times in a manner that will (1) not permit the discharge of sewage onto the surface of the ground; (2) not result In the surfacing of sewage; (3) not result in the alirect discharge of sewage
- into the waters of the State; (4) not result in a violation of Water Quality Standards; and (5) not cause a significant alteratibn of the aquatic biota in the.
receiving waters.
The disposal fields for the Main, New Warehouse, Construction Office Building (South) and New Office Building sewage disposal systems shall be alternated on an annual basis. The effluent disposal rate to sewage disposal system shall not exceed the Values listed in Condition B(2).
D2.
Annual Inspection:
Annually during the month of April, the permittee shall engage a professional engineer registered in the State of Vermont to make a thorough inspection, evaluation, and report of the complete sewage collection, treatment and disposal system. The engineer's inspection shallinclude, but not be limited to the following:
- a.
verification of the use of alternate disposal fields (Main, New Warehouse Construction Office Building (South System) and New Office disposal systems);
- b.
verification of the proper operation of the lift station pumps and alarms;
- c.
inspecting the entire collection system, removing manhole covers to observe the condition of the sewers and manholes, and noting any signs of inflow or excess infiltration;
- d.
evaluating the accumulation of solids and scum in the septic tanks and verifying the date of pumping of the tanks;
- e.
checking the proper distribution of flow and the levelness of all distribution boxes in the disposal fields;
- f.
checking the depth of ponding in observation wells for those fields in use during the inspection;
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 12 D2.
Annual Inspection (continued):
- g.
checking the calibration of the effluent flow meter (if applicable); and
- h.
noting any necessary repairs, or maintenance that needs to be performed.
Before June 1 st each year the permlttee shall have a professional engineer submit an annual report that includes the following items:
- a.
a complete list of the items Inspected and the results of the inspection;
- b.
a discussion of the recommended repairs and maintenance required;
- c.
the measured depth of sludge and scum in all septic tanks; and
- d.
an evaluation of metered water use, depth of ponding and groundwater table levels in the vicinity of the disposal fields (if groundwater'depth measurement is required).
Before July 15th each year the permittee shall notify the Secretary in writing stating how the engineer's recommendations are to be implemented and including a schedule for the required repairs and maintenance.
D3.
Operation During Plant Outages:
The permittee shall verify that the Main (North) system pump station is properly
-alternating among all three fields during plant outages. At least every two weeks during outages, the permittee shall measure the depth of ponding in the observation wells In the Main (North) system. The permittee shall verify that the New Warehouse system pump station is properly alternating between both fields during plant outages. At least every two weeks during outages, the permittee shall measure the depth of ponding In the observation wells In the New Warehouse system. The permittee shall verify that the Construction Office Building (South System) pump station is properly altemating between both fields during plant outages. At least every two weeks during outages, the permittee shall measure the depth of ponding in the observation wells in the Construction Office Building (South System) mound leachfield. The permittee dhall submit a tabulation of the recorded measurements at the end of each outage period, along with the required flow records.
D4.
Septage Disposal:
During the system's annual inspection the depth of sludge and scum shall be measured in all septic tanks. The septic tanks shall be pumped if: 1) the sludge Is closerthan twelve (12) inches to the outlet baffle or; 2) the scum layer is closer than three (3) inches to the septic tank outlet baffle or, 3) if otherwise
-V..
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 13 D4.
Septage Disposal (continued):
recommended by the inspecting engineer.
Sampling of the septic tank effluent for radioactivity.in accordance with the procedures listed in the approved Quality Assurance/Quality Control Plan must be done each time pumping occurs, prior to pumping the tanks.
Before pumping the septage for land alplication, the permittee shall notify the Secretary in writing, of the name and address of the pumper and verify that the sludge has been tested for radioactivity and will be disposed of in accordance with the Solid Waste Management Facility Certification.
D5.
System Operation and Maintenance:
The sewage collection, treatment; and disposal system shall be operated and maintained at all times in a manner satisfactory to the Secretary and in a manner that will not pose a risk to the public health and safety, or cause contamination of drinking water supplies, groundwater and/or surface water.
D6.
Reporting of Failures:
The permittee shall immediately report any failure of the wastewater collection, treatment, or disposal system to the Secretary, first by telephone on the first working day within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the failure and then in writing within 5 business days of the failure. The written notice shall include a discussion of the.a6tions taken or to be taken to correct the failure.
Notification shall be to the Indirect Discharge Permit Section of the Department of Environmental Conservation at (802) 241-3822.
Reporting of instances when daily average flow exceeds design flow will be initiated only when:
(a) a flow exceedence is associated with a physical or mechanical conditio'n which compromises the performance of the sewage disposal system; or (b) a flow exceedence occurs for three or more consecutive days during an outage period; or (c) a flow exceedence occurs for two or more consecutive days during a non-outage operating period.
Any design flow exceedence shall be investigated to determine if it was associated with a problem in the system's performance..
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 14 D7.
Discharqe Restrictions:
The permittee shall not allow any person to discharge or cause to be discharged anything other than'sanitary wastewater and the laboratory wastes authorized herein to this treatment and disposal facility.
SECTION E "MONITORING" El.
Quality Assurance/Quality Control Plan:
Within 90 days of the completion of construction of the replacement mound disposal field serving the Construction Office Building (South System), the permittee shall submit an amendment to the Quality Assurance/Quality Control Plan showing the As-Built locations of groundwater monitoring wells for that field and their numerical designations.
The laboratory identified in the Quality AssurancelQuality Control Plan shall demonstrate successful performance for U.S. EPA check samples for all parameters and shall analyze any check samples provided by the Secretary.
Failure to obtain an acceptable result for either samples provided by the Secretary or EPA check samples may be a basis for requiring an alternate analytical laboratory.
E2.
Effluent Monitoring:
A.
Chemical The effluent'to the disposal fields for the Main, C.O.B., New Warehouse and New Office Building sewage disposal systems shall be sampled and analyzed as follows:
Measurement Sample Sample Parameter Units Type Frequency
..,Flow (1) gpd Daily Total Continuous Biochemical Oxygen Demand (5-day) mg/L Grab April and October Total Suspended Solids mg/L Grab Apdl and October pH S.U.
Grab April and Oct6ber
Entergy Nuclear Vermont Yankee, LLC Dischatge Permit ID-9-0036-2 Page 15 E2.
Effluent Monitoring:
A.
Chemical (continued):
Measurement Sample Sample Parameter Units Type Frequency Total Kjeldahl Nitrogen mgIL Grab
. April and October Ammonia (as N) mg/L Grab April and October Nitrate/Nitrite Nitrogen (N03 I N02 as N) mg/L Grab April and October Total Phosphorus mgIL Grab April and October Total Dissolved Phosphorus mg/L Grab April and October Chloride (Cl-)
mg/L Grab April and Odtober (1)
The permittee may record daily water use as an altemative to-this monitoring requirement (See E(2)(B) below).
The results of the effluent analysis shall be submittedto the Secretary prior to the 15th day of the second month following the date of sampling.
B.
Sewage Volume:
The permittee shall Install sewage flow meters on the Main'Sewage Disposal system, the C.O.B. sewage disposal system, New Warehouse sewage disposal system and New Office Building system in order to monitor the daily sewage flow to each of these disposal fields.
Alternatively, the permittee may record the daily water meter readings for all units connected to.these sewage disposal, systems, along with any bottled water utilized, to determine the total volume of water used each day. The volume of water used and Individual meter readings shall be submitted to the Secretary by the 15th of the month following the recording period.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 16 E3.
Groundwater Monitoring:
A..
Chemical and Bacterioloaical Monitorina:
The groundwater in the monitoring wells upgradient and downgradient of the Main, Construction Office Building (South.System), New Warehouse and New Office Building sewage disposal fields, both primary and-alternate, as identified in the Quality Assurance/ Quality Control plan, shall
- be sampled and analyzed for the following parameters:
Measurement Units Sample TVDe Sample Frequency Parameter Nitrate (as N)
Total Dissolved Phosphorus (as P)
Chloride (Cl-)
pH Escherichia-coli cot Depth to.Groundwater (below ground surface) mg/L mg/L mgIL S.U.
Grab Grab Grab Grab Grab April and October April and October April and October April and October April and October At.time of sampling onies/100 ml inches-Because of changing water table conditions, the samples from the groundwater monitors might not be collected on the same day or in the same week if water is not available. If a monitor has water at any time during the month then a sample is required to be collected and analyzed.
For the purpose of this section, therefore, weekly groundwater measurements are required in April and October. Once a well is sampled, no further groundwater level measurements will be required for that well for that month.
The results of these analyses shall be submitted to the Secretary prior to the 15th day of the second month following the date of sampling.
V.*
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 17 B.
Groundwater Levels:
The Quality Control/Quality. Assurance plan includes the location of a minimum of six groundwater monitors installed around the Main, C.O.B.
and New Warehouse disposal systems each, three groundwater monitors installed around the New Office Building disposal fields, two groundwater monitors located downgradient of the C.O.B. mound (Northwest) leachfield, and two groundwater monitors installed around the Governor Hunt and Gatehouse #1 disposal systems each, to monitor the level of the ground water table. Upon request by the Secretary, the depth to groundwater (below ground surface) shall be measured and recorded at a frequency determined by the Secretary above that required in E3(A) above. Any such request would be in the form of a letter to the permittee.
E4.
Receivinq Stream Monitoring:
Indirect Discharge Permits normally require regular chemical and biological monitoring of the receiving waters. Due to the extremely large stream flow to effluent flow ratio at low median monthly flow (approx. 161 -740:1), and the size of" the Connecticut River at-the point of compliance, stream water quality monitoring is not required for this system. However, if the Secretary determines stream
-monitoring to be necessary, the permittee shall submit, upon written notice from the Secretary, sampling procedures for chemical and biological sampling of the receiving waters within 90 days of receiving such notice. The requirement for sampling and the frequency of such sampling will be upon written notice.from the Secretary.
E5.
Summary Water Quality Evaluation:
By June 30, 2005 the permittee shall have a qualified water quality specialist submit an evaluation to the Secretary of all past effluent and groundwater quality data and determine what, if any, short or long term impacts there have been on groundwater quality. If chemical and biological monitoring of the receiving waters was conducted, the results of that monitoring shall also be evaluated.
E6.
Sampling and Testing Procedures:
All wastewater, groundwater and surface water sampling, preservation, handling and test procedures used to comply with the monitoring requirements herein shall conform to procedures specified in the most current edition of Standard Methods for the Examination of Water and Wastewater APHA - AWWA - WPCF, and the Vermont Water Quality Standards unless written approval of an alternate method is received from the Agency.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 18 E7.
Miscellaneous:
If the permittee monitors any required parameter set forth in this permit for this treatment and disposal system more frequently than required by this permit, the results of such monitoring shall be included on the Discharge Monitoring Report Form.
All records and information resulting from the monitorifig activities required by this permit including all records of analyses performed and calibration and maintenance of instrumentation and recordings from continuous monitoring Instrumentation shall be retained for a minimum of three (3) years, or longer if requested by the Secretary. Records shall include laboratory bench sheets showing exact location, time and composites of sample as well as analytical procedures used, interim results obtained and all calculations supporting the reported test results.
E8.
Additional Monitoring:
The Secretary reserves the right to require additional monitoring of the system, in accordance with Condition A(7) of this permit, should operation of the system fail to meet the requirements of Conditions D(l) and D(5).
SECTION F - "COMPLIANCE REVIEW" If the results of monitoring the effluent and groundwater (Section E) show there is a possibility that the aquatic permitting criteria of the Indirect Discharge Rules may be exceeded at the designated stream flow conditions, the Secretary may Increase the frequency of, or change the location of monitoring of the ground and surface water. If continued monitoring and analysis Indicates that a violation of the effluent disposal rate, or a violation of the Vermont Water Quality Standards, or a significant alteration of the aquatic biota has occurred, is occurring, or is likely to occur the Secretary may require the permittee to take appropriate corrective actions to eliminate or reduce the possibility of a violation.
The issuance of this amended Indirect Discharge Permit ID-9-0036-2, to Entergy Nuclear Vermont Yankee, LLC., by the Secretary relies upon the data, designs, judgement and other information supplied by the applicant, his consultants and other experts who have participated in the preparation of the application. The Secretary makes no assurance that the systems will meet the performance objectives of the applicant and no warranties or guarantees are given or implied.
Entergy Nuclear Vermont Yankee, LLC Discharge Permit ID-9-0036-2 Page 19 SECTION G - "EFFECTIVE DATE" This Indirect Discharge Permit Amendment, ID-9-0036-2, issued to Entergy Nuclear Vermont Yankee LLC., for the discharge of wastewater from the sewage treatment and disposal systems at the Entergy Nuclear rmont Yankee LLC.,
facility In Vernon, Vermont is effective this...
Nday of 2003.
Jeffrey Wennberg, Commissioner Department of Environmental Conservation By j
I" JoJ.
Aki szek, Chief Indirect Discharge Permit Section K:-\\Fina1\\1ndirect\\M-O36-2.doC