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HomeMy WebLinkAboutWQ0004059_Final Permit_200801181N p` r�Q�i Michael F. Easley, Governor William G. Ross Jr., Secretary D U Q r North Carolina Department of Environment and Natural Resources --i Q Coleen H, Sullins Director Division of Water Quality January 18, 2008 WILLIAM T. SMITH, PRESIDENT SUGARLOAF UTILITY, INC. 2304 WESVILLE CT., SUITE 380 RALEIGH, NC 27607 Dear Mr. Smith: Subject: Permit No. WQ0004059 Sugarloaf Utility, Inc. Atlantic Station Facility High -Rate Infiltration Carteret County In accordance with your permit renewal request received October 31, 2007, we are forwarding herewith Permit No. WQ0004059, dated January 18, 2008, to Sugarloaf Utility, Inc. for the continued operation of the subject wastewater treatment and high -rate infiltration facilities. This permit shall be effective from the date of issuance until December 31, 2012, shall void Permit No. WQ0004059 issued November 18, 2002, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements in this permit, Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. Please note that on September 1, 2006 State Administrative Code 15A NCAC Subchapter 02T — Waste not Discharged to Surface Water was adopted. This permit incorporates the requirement of the new rules, which include new setback requirements. Remember to take the time to review this permit thoroughly, as some of the conditions contained therein may have been added, changed, or deleted from those in previously issued permits. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made this permit shall be final and binding. If you need additional information concerning this matter, please contact David Goodrich at (919) 715-6162 or david.goodrich@ncmail.net. Sincere -.Coleen H. Sullins cc: Carteret County Health Department Wilmington Regional Office, Aquifer Protection Section Technical Assistance and Certification Unit AAq Central Files LAU Files NorthCarolina lVQt!l1a lly Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Telephone : (919) 733-3221 Internet: WW W.ricwateraual#y.org Location: 2728 Capital Boulevard Raleigh, NC 27604 Fax 1: (919) 715-0588 Fax 2: (919) 715-6048 An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper Customer Service: (877) 623-6748 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH HIGH -RATE INFILTRATION SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Sugarloaf Utility, Inc. Cateret County FOR THE continued operation of a 100,000 high -rate wastewater infiltration rotary distributor facilities consisting of an influent bar screen, a 20,000 gallon aerated flow equalization tank with dual 80 GPM submersible pumps and high water alarms, flow control box, dual extended aeration package plants each consisting of a 50,000 gallon aeration tank and a 8,333 gallon clarifier, dual 280 CFM blowers with a stand-by blower of equal capacity, a 100,000 GPD tertiary filter unit including backwash pumps and air scouring blowers, a 8,700 gallon sludge holding tank, a 2,084 gallon chlorine contact tank with dual tablet type chlorinators, an effluent recording flow meter, a 5,863 gallon effluent dosing tank with submersible pumps and high water alarms, two (2) 86-foot diameter rotary distributors, an on -site stand-by generator with sufficient capacity to operate the entire facility, and all associated piping, valves, and appurtenances to serve Sugarloaf Utility, Inc.'s Atlantic Station with no discharge of wastes to the surface waters, pursuant to the renewal request received October 31, 2007, and in conformity with the project plan, specifications, and other supp rting data subsequently filed and approved by the Department of Environment and Natural Resourcegand considered a part of this permit. This permit shall be effective from the date of issuance until December 31, 2012, shall void Permit No. WQ0004059 issued November 18, 2002, and shall be subject to the following specified conditions and limitations: L SCHEDULES Within 60 days of permit issuance, if not already performed, all of the wells (active and inactive) at the site, with the exception of MW-1 and MW-2 need to be properly labeled and have complete descriptive well tags according to the North Carolina Well Construction Standards 15A NCAC 2C .0108(c)(11). Additionally, within 60 days of permit issuance, monitor well MW-3 shall be temporarily abandoned by securing the wellheads to prevent access by hand. Each well shall have a lockable cap and be locked in order to reasonably ensure against unauthorized access and use [15A NCAC 02C ,0108(c)(7)]. The well shall be further secured by placing a compatible watertight cap or seal onto the riser pipe to prevent potential contamination from entering the well. WQ0004059 Version 3.0 Shelf Version 070612 Page 1 of 2. No later than six months prior to the expiration of this permit, the Permittee shall request renewal of this permit on official Division forms. Upon receipt of the request, the Division will review the adequacy of the facilities described therein, and if warranted, will extend the permit for such period of time and under such conditions and limitations as it may deem appropriate. Please note that Rule 15A NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal application. 3. The subject wastewater treatment and disposal facilities shall be connected to an operational publicly owned wastewater collection system within 180 days of its availability to the subject facilities, if the subject wastewater treatment or disposal facilities are in noncompliance with the terms and conditions of this non -discharge permit or the governing statutes or regulations. Prior to the initiation of these connection activities, appropriate approval must be received from this Division. II. PERFORMANCE STANDARDS The high -rate infiltration facilities shall be effectively maintained and operated at all times so that there is no discharge to the surface waters, nor any contravention of groundwater or surface water standards. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions or failure of the high -rate infiltration area to adequately assimilate the wastewater, the Permittee shall take immediate corrective actions including those actions that may be required by the Division, such as the construction of additional or replacement wastewater treatment and disposal facilities. 2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to ground or surface waters resulting from the operation of this facility. 3. Effluent limitations shall not exceed those specified in Attachment A. 4. Application rate(s), whether hydraulic, nutrient, or other pollutant shall not exceed those specified in Attachment B. The compliance boundary for the disposal system is specified by rules in 15A NCAC 02L, Groundwater Classifications and Standards. This disposal system was individually permitted on or after December 30, 1983; therefore, the compliance boundary is established at either 250 feet from the waste disposal area, or 50 feet within the property boundary, whichever is closest to the waste disposal area. An exceedance of groundwater standards at or beyond the compliance boundary is subject to remediation action according to 15A NCAC 02L ,0106(d)(2) as well as enforcement actions in accordance with North Carolina General Statute 143-215.6A through 143-215.6C. The Permittee shall apply for a permit modification prior to any sale or transfer of property that affects a compliance boundary to establish a new compliance boundary. 7. In accordance with 15A NCAC 02L .0107(d), no wells, other than monitoring wells, shall be constructed within the compliance boundary except as provided by 15A NCAC 02L .0107(g). 8. The review boundary is established around the disposal systems midway between the compliance boundary and the perimeter of the waste disposal area. Any exceedance of standards at the review boundary shall require action in accordance with 15A NCAC 02L .0106. 9. The facilities permitted herein must be constructed according to the following setbacks: . a. The setbacks for high -rate infiltration sites shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate 400 ownership: ii. Any habitable residence or place of public assembly owned by the 200 permittee: WQ0004059 Version 3.0 Shell Version 070612 Page 2 of 7 iii. Any private or public water supply source and any streams classified as 200 WS or B: iv. From mean high water in any "SA" or "SB" classified surface waters; from normal high water in any other stream, canal, marsh, coastal waters; from normal high water in any Class 1 or Class H impounded 200 reservoir used as a source of drinking water; any other lake or impoundment: v. Groundwater lowering ditches: 200 vi. Any drainage systems (ditches, drains, surface water diversions) and 200 any surface drainage ditches: vii. Any well with exception of monitoring wells: 100 viii. Any property line: 100 ix. Top of slope of embankments or cuts of two feet or more in vertical 100 height: x. Any water line from a disposal system: 10 xi. Subsurface groundwater lowering drainage systems: 200 xii. Any swimming pool: 100 xiii.Public right of way and other treatment units: 50 xiv. Nitrification field: 20 xv. Any building foundation or basement: 15 xvi. Impounded public water supplies: 500 xvii. Public shallow groundwater supply: 500 b. The setbacks for treatment and storage units shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: ii. Any private or public water supply source: iii. Surface waters: iv. Any well with exception of monitoring wells: v. Any property line: 100 100 50 100 50 10. A usable green area shall be maintained for wastewater disposal. The green area shall have the capability of accommodating the average daily flow of the facility being served without exceeding the loading rates of the green area. A "green area", as defined in 15A NCAC 02H .0404 (g)(7), is an area suitable for waste disposal, either in its natural state or which has been modified by planting a vegetative cover of grasses or low growing shrubbery, III. OPERATION AND MAINTENANCE RE UPREMENTS 1, The facilities shall be properly maintained and operated at all times. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater resulting from the operation of this facility. The Permittee shall maintain an Operation and Maintenance Plan pursuant to 15A NCAC 02T .0707 including operational functions, maintenance schedules, safety measures, and a spill response plan. . 2. Upon classification of the wastewater treatment and high -rate infiltration facilities by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate and employ a certified operator to be in responsible charge (ORC) and one or more certified operator(s) to be back-up ORC(s) of the facilities in accordance with 15A NCAC 08G .0200. The ORC shall visit the facilities in accordance with 15A NCAC 08G .0200 or as specified in this permit and shall comply with all other conditions specified in these rules. WQ0004059 Version 3.0 Shell Version 070612 Page 3 of 7 3. A suitable year round vegetative cover shall be maintained such that crop health is optimized, allows for even distribution of effluent, and.allows inspection of the high -rate infiltration system. 4. Adequate measures shall be taken to prevent wastewater ponding or runoff from the high -rate infiltration field. 5. High -rate infiltration shall not be performed during inclement weather or when the ground is in a condition that will cause ponding or nmoff. 6. All waste application equipment must be tested and calibrated at least once per year. Records of the calibration must be maintained for five years. 7. No type of wastewater other than that from Sugarloaf Utility, Inc.'s Atlantic Station facility shall be disposed onto the high -rate infiltration area. 8. An automatically activated standby power source shall be on site and operational at all times capable of powering all essential treatment units. If a generator is employed as an alternate power supply, it shall be tested weekly by interrupting the primary power source. 9. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 10. The rotary distribution fields shall be raked twice weekly during the months of April through October and once a week during the months of November through March. 11. The screenings removed from the wastewater treatment plant shall be properly disposed in a sanitary landfill or by other means that have been approved by this Division. 12. Vegetative growth must be kept out of the rotary distribution areas at all times. All vegetation must be removed manually so that minimal disturbance will occur to the disposal area. 13. The application of chemicals to the distribution field(s) is expressly prohibited. 14. Diffusers shall be cleaned as needed to ensure that adequate aeration is provided. Records of this maintenance shall be maintained by the permittee. 15. The chlorine tablets used in the disinfection facility shall be of the kind and type specified in the plans and specifications approved by the Division. 16. The residuals generated from these treatment facilities must be disposed / utilized in accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan pursuant to 15A NCAC 02T .0708. 17. A record shall be maintained of all residuals removed from this facility. The record shall include the name of the hauler, the permit authorizing the disposal or a letter from a municipality agreeing to accept the residuals, the date the residuals were hauled, and the volume of the residuals removed. 18. Adequate measures shall be taken to divert stormwater from the high rate infiltration area and to prevent wastewater runoff. 19. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. IV. MONITORING AND REPORTING REQUIREMENTS 11 1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed necessary by the Division to ensure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. WQ0004059 Version 3.0 Shell Version 070612 Page 4 of 7 2. All laboratory analyses for effluent, ground waters, or surface waters shall be made by a laboratory certified by the Division for the required parameter(s) under 15A NCAC 02H .0800. 3. Flow through the treatment facility shall be continuously monitored and daily flow values shall be reported on Form NDMR. The Permittee shall install and maintain an appropriate flow measurement device consistent with approved engineering and scientific practices to ensure the accuracy and reliability of flow measurement. Flow measurement devices selected shall be capable of measuring flows with a maximum deviation of less than 10 percent from true flow, accurately calibrated at a minimum of once per year, and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. The Permittee shall keep records of flow measurement device calibration on file for a period of at least three years. At a minimum, data to be included in this documentation shall be: a. Date of flow measurement device calibration, b. Name of person performing calibration, and c. Percent from true flow. 4. The effluent from the subject facilities shall be monitored by the Permittee at the frequency(ies) and location(s) for the parameter(s) specified in Attachment A. 5. The Permittee tracking the amount of wastewater disposed shall maintain adequate records. These records shall include, but are not necessarily limited to, the following information: a. Date of high -rate infiltration, b. Volume of wastewater infiltrated, c. Field infiltrated, d. Length of time field is infiltrated, e. Loading rates to each infiltration site list in Attachment B f. Continuous monthly and year-to-date loadings for any limited in Attachment B for each field, g. Weather conditions, and non -hydraulic parameter specifically 6. Monitor wells shall be sampled at the frequencies and for the parameters specified in Attachment C. All mapping, well construction forms, well abandonment forms, and monitoring data shall refer to the permit number and the well nomenclature as provided in Attachment C and F4,rure 2. 7. Two copies of the results of the sampling and analysis must be received on Form GW-59 (Groundwater Quality Monitoring: Compliance Report Form), along with attached copies of laboratory analyses, by the Division of Water Quality, Information Processing Unit, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 on or before the last working day of the month following the sampling month. Form GW-59 shall include the number of this permit and the appropriate well identification number. One Form GW-59a certification form shall be provided for each set of sampling results submitted. Three copies of all monitoring data [as specified in Conditions IV.3. and IVA.] on Form NDMR for each point prior to irrigation (PPI) and three copies of all operation and disposal records [as specified in Condition IV.5.] on Form NDAR-1 for every infiltration area shall be submitted on or before the last day of the following month. If no activities occurred during the monitoring month, monitoring reports are still required documenting the absence of the activity, All information shall be submitted to the following address: Division of Water Quality Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 WQ0004059 Version 3.0 Shell Version 070612 Page 5 of 7 A maintenance log shall be maintained at this facility including, but not limited to, the following items: a. Daily sampling results including residual chlorine, settleable matter, and dissolved oxygen in the aeration basin and at the clarifier weir; b. Visual observations of the plant and plant site. c. Record of preventative maintenance (changing of filters, adjusting belt tensions, alarm testing, diffuser inspections and cleanings, etc.); d. Date of calibration of flow measurement device; . e. Date and results of power interruption testing on alternative power supply; and f. Dates fields were raked and arms inspected. 10. Noncompliance Notification: The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910) 796-7215, as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following; a. Any occurrence at the wastewater treatment facility which results in the treatment of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances including ponding in the high -rate infiltration areas or runoff from the high -rate infiltration areas. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. c. Any failure of disposal system resulting in a by-pass directly to receiving waters. d. Any time that self -monitoring information indicates that the facility has gone out of compliance with its permit limitations including, but not limited to, freeboard measurements, effluent limitations, exceedances of groundwater standards, or overloading of any infiltration area. For any emergency that requires immediate reporting (e.g., discharges to surface waters, imminent failure of a storage structure, etc.) outside normal business hours must be reported to the Division's Emergency Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733- 3300. Persons reporting such occurrences by telephone shall also file a written report in letter form within five (5) days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. V. INSPECTIONS 1. Adequate inspection and maintenance shall be provided by the Permittee to ensure proper operation of the subject facilities. 2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall keep an inspection log or summary including at least the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of five years from the date of the inspection and shall be made available upon request to the Division or other permitting authority. WQ0004059 Version 3.0 1 Shell Version 070612 Page 6 of 7 3. Any duly authorized officer, employee, or representative of the Division may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the disposal site or facility at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be maintained under the terms and conditions of this permit, and may obtain samples of groundwater, surface water, or leachate. VI. GENERAL CONDITIONS 1. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statute 143- 215.6A to 143-215.6C. 2. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 3. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data. No variances to applicable rules governing the construction and l or operation of the permitted facilities are granted unless specifically requested and granted in this permit. 4. The issuance of this permit does not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) that have jurisdiction. Of particular concern to the Division are applicable river buffer rules in 15A NCAC 02B .0200, erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under the Division's General Permit NCGO10000, and any requirements pertaining to wetlands under 15A NCAC 02B .0200 and 02H .0500. 5. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permttee, a formal permit request must be submitted to the Division on official Division forms, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The Permittee of record shall remain fully responsible for compliance until a permit is issued to the new owner. 6. The Permittee shall retain a set of approved plans and specifications for the life of the facilities permitted herein. 7. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or permitted under another permit issued by the appropriate permitting authority. The Permittee must pay the annual fee within 30 pay the fee accordingly may cause the Division 15ANCAC 02T .0105(e). Permit issued this the 18th of January 2008 days after being billed by the Division. Failure to to initiate action to revoke this permit pursuant to NORTH C LINA ENVIRONMENTAL MANAGEMENT COMMISSION ,;�-Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0004059 WQ0004059 Version 3.0 Shell Version 070612 Page 7 of 7 ATTASCHMENT A - EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUGARLOAF UTILITY, INC. Permit Number: WQ0004059 Version 3.0 VU4 VVVV A r- L:J I luwr[L F . Ffi-'Q6 EFFLUENT LIMITS Measurement Sample Parameter Description - PCS Code Monthly Average Units Weekly Average Units Daily Maximum Units Frequency Type Chloride (as Cl) - 00940 3 X year Composite BoD, 5-Day (20 Deg. C) 00310 Summer 10 ring/l Weekly Composite BOB, 5-Day (20 Deg. C) 00310 Winter 10 mg/I Monthly Composite Sulf(Is, Total Suspended 00530 Winter 20 mgil Monthly Composite Nitrogen, Ammonia Total (,is N) - 00610 - Winter 4 mg/I Monthly Composite Nitrogen, Nitrate Total (as N) - 00620 - Summer Weekly composite — Solids, Total Suspended - 00530 - Summer 20 mg/1 Weekly Composite Nitrogen, Nitrate Total (as N) - 00620 - Winter Monthly Composite pH - 00400 6A - 9.0 S.u. 5 X week Grab Nitrogen, Ammonia Total (as N) - 00610 - Summer 4 mg/l Weekly composite Solids, Total Dissolved-1 SO Dog.0 - 70300 3 X year composite Coliform, Fecal MF, M-FG Broth,44.5C - 31616 - Winter (geom.mean) 14 X100ml 43 1 #/100:-n1 Monthly Grab Coliform, Fecal MF, M-FC Broth,44.5C 31616 - Summef(georn.mean) 14 #1100m1 431 #/100m1 Weekly Grab Flow, in conduit or thru treatment plant 50050 100,000 gpd Continuous Recorder Chlorine, Total Residual - 50060 5xvveek Grab j Winter September 1 - April 30 Summer May 1 - August 31 3 X year - March, July, November There shall be no discharge of floating solids or visible foam in other than trace amounts W00004059 Version 3.0 Attachment A Page 1 of 1 ATTACHMENT B -Approved Land Application Sites Permit Number: W00004059 Version: 3.0 Sugarloaf Utility Inc A1r F:.. __1:.... lAllArrr �LrieldlZone Id Owner Lessee lCounty I Latitude ILongitude Acreage Dominant Soil Series Parameter Hourly Avg Yearly Max 01 Sugarloaf Utility Inc Carteret 34'41'59" 76-45-04" .13 IDuckston fine SF1 82216 - Spray Irrigation- Apphcafion Rate 10 gpd/sf 02 Sugarloaf Utitity Inc ICarteretl 34041'57" 76-45'02" .13 IDuckston fmc' sand 82216 - Spray hTi ation- AppNeation Rate 10 gpd/sf Total •26 WQ0004059 Version 3.0 Attachment B Page 1 of 1 ATTACHMENT C - GROUNDWATER LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0004059 Version 3.0 Sugarloaf Utility, Inc. an......:4.-.. IAI Ham- RA1Al..4 nAW -3 nmAr-4 "W-r, an j MW-6 CNt�feTFt1571cS LIMITS IV4[11I4xlI3G ItU[1Eltsl5 Parameter Description -PCs Code Daily Minimurn Daily Maximum Units Frequency Measurement Footnotes Water €evel, distance frorn measuring pain: - 82546 3 X year Calculated 1, 2, 3 pH - 00400 6.50 8.50 su 3 X year Grab t Cofiform, Fecal MF, M-FC Breth,44.5C - 31616 3 X year Grab 1 Solids, Total Dissolved- 180 Deg.0 - 70300 500.00 mgll 3 X year Grab t Carbon, Tot Or (TOO) - 00680 3 X year Grab 1,4 Chloride (as Cl) - 00940 250.00 mg/€ 3 X year Grab 1 Nitrogen, AmmoniaTolal (as N) - 00610 3X year Grab 1 Nitrogen, Nitrate Total (as N) - 00620 10.00 mg/I 3 X year Grab 1 Phosphorus, Total (as P) - 00665 3 X year Grab 1 Volatile Compounds, (GClMS) - 76732 Annually Grab 1, 5 L 3X year monitoring shall be conducted in March, July & October. Annual monitoring sball be conducted in October. Monitoring wells shall be reported consistent with the uornenclature and location information provided in Figure 2 and this attachment. 1 "lhe measurement of water levels shall be evade prior to purging the wells.The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of pH shall be made aver purging and prior to sampling for the remaining parameters. 3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top of casing) of all monitoring wells shall be surveyed relative to a conAmn datum 4. If TOC concentrations greater than 10 mg/1 are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/l, this concentration will be taken to represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above. 5. Volatile Organic Compounds (VOC) - In November only, analyze by one of the Following methods: a. Standard Method 6230D, PQL at U µg/L or less b. Standard Method 6210D, PQL at 0.5 µg/L or less C. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less e. Another method with prior approval by the Aquifer Protection Section Chief. Any method used must meet the following qualifications: a A laboratory must be DWQ certified to run any method used. b. The method used must, at a minimum, include all the constituents listed in Table V IR of Standard Method 62301). C. The method used must provide a PQL of 0.5 ug/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents detected above the MDL but below the PQL of 0.5 ug/L must be qualified (estimated) and reported. WO0004059 Version 3.0 Attachment C Page 1 of 1 .. . � ' ; ��_'."—� '.� ' � � �. - �!i ���---•ram' ..�. ""' % �g t � . `,'. '' . • r•• ""-"'��. ",�• `�. ii. � ��1y'�Y ,�L .��/ r^�"-... vim- i �- _,��� r :�,.• �'t� "`fir% �'%"� -r�� eT �`---^r"�— � f—"'--"'--�--...��,• .. i . aro ID + ehea oDa beacon r,A•1 Q%w ght Y iaaCOAsraL `�--1 a lace r O Deybea4oq WATEf2WAY C� IlaYbeecon a A o i]olphina" T {~` - =_ -__= •� Ca rr- %42`3{ Pile 2. 71- `--'` � •^ sue•—�� • �. � _' "' � -` �—~=1''- r � � � - ' � � C f' • • t. •'..�• Got? L" • "_ �i.^��, •r• G:.� - i 1B '.' !' 4 ... ,..r •. • �T ref•- \ f--'7 `'»' S� �-•- '' _ = %�1i f . o IrmlU 43 "Wrilis La ndirtg W...• ... 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