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HomeMy WebLinkAboutWQ0002838_Final Permit_20110916iww�m HCDENR North Carolina. Department of Environment and Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Governor Director September 16, 2011 MR. MATT GETTY - VP OF ASSET MGMT. AMERICAN RESIDENTIAL COMMUNiTFES 4643 S. ULSTER STREET, SUITE 400 DENVE.R, COLORADO 80237 Dear Mr. Getty: Natural Resources Dee Freeman Secretary Subject: Permit No. WQ0002838 Deerhurst Mobile Home Park Wastewater Irrigation System Wake County In accordance with your permit minor modification request received June 8, 2011, site visit performed July 15, 2011, subsequent additional information received August 23, 2011 and August 31, 2011, and comments on the draft permit received September 13, 2011, we are forwarding herewith Permit No. WQ0002838 dated September 16, 2011, to American Residential Communities for the construction and operation of the subject wastewater treatment and wastewater irrigation facilities. The modifications to the subject permit are as follows: • The effluent flow limit has been reduced from 50,750 GPD to 19,229 GPD in accordance with your request; • Effluent monitoring frequency has been increased from 3 X year to 4 X year, in accordance with the Aquifer Protection Section's Wastewater Monitoring Policy for facilities with flows between 10,000 and 100,000 GPD, with the additional monitoring event conducted in January. Please note that groundwater monitoring frequency remains the same (3 X year), • Spray field acreages have been adjusted for each field and reduced slightly in total from 12.02 ac to 11.47 ac to reflect actual acreage deemed usable for spray irrigation; • Spray field dominant soil series have been updated to reflect the findings of the 2009 S&EC soil and agronomic evaluation; and • The spray field hydraulic loading rate has been reduced from 56.28 in/yr to 22 in/yr. The permit format has been updated to the latest version and contains one or more new or expanded permit conditions. Please note the following permit conditions are new since the last permit issuance: ➢ H. Performance Standards, Condition 12 — Provides an expanded number of setback distances to irrigation sites and treatment facilities; RP:J"FER PRCIT=. T!0— SPE: CTIui: 16n iaia : S,arvte Genre , Rani^' . K,rtli 27C-99- , .. _ r 2 Ec ar r fr ;,a�' arc �G 27C, ,ti:. 9 3_?. A F 'One ? 504,, ; uStC�rerSe'v;Ce 4-c""77 0"23 "b74c ine'nr wwv..ncwarer L1ak .oro No%�� C olkia Mr. Matt Getty September 16, 2011 Page 2 of 2 y III, Operation and Maintenance Requirements, Condition 10 — Requires residuals removal and disposal in accordance with 15A NCAC 02T .1100 and a residuals management plan in accordance with 15A NCAC 02T .0508; and ➢ VI. General Conditions, Condition 8 — Provides notification that the permit is subject to revocation or modification in accordance with 15A NCAC 02T .0110. ➢ Please note that the permit requirement to develop and maintain a map of the sewer collection system has been moved from the II. Performance Standards section of the permit to I. Schedules section to allow 12 months for the permittee to comply with this permit condition. This permit shall be effective from the date of issuance until January 31, 2015, shall void Permit No. WQ0002838 issued July 16, 2009 and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements listed in Attachments A, B and C for they may differ from the previous permit issuance. Failure to establish an adequate system for collecting and maintaining the required operational information shall result in future compliance problems. If any parts, requirements or limitations contained in this permit are unacceptable, the Permittee has the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request shall 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 at 6714 Mail Service Center, Raleigh, NC 27699-6714, Unless such demands are made, this permit shall be final and binding. One set of approved plans and specifications is being forwarded to you as well as one set of customized reporting forms NDMR and NDAR-1. Reporting forms are also available on our website at http.- `/portal.ncdenr.org/weblwqlaps/lawrMortinjx#Customized and sorted by permit number. If you need additional information concerning this matter, please contact Cory Larsen at (919) 715-6186 or cory.larsen@ncdenr.gov. Sincerely, v . � oleen H. Sullins cc: Wake County Health Department Raleigh Regional Office, Aquifer Protection Section Jeffrey Titus, PG -- Apex Companies, LLC (136 Fairview Road, Ste 125, Mooresville, NC 28117) Permit File WQ0002838 Notebook File WQ0002838 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH WASTEWATER IRRIGATION 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 Deerhurst Mobile Hoare Park Wake County construction and operation of a 19,229 gallon per day (GPD) wastewater treatment and wastewater irrigation facility consisting of: approximately 15,500 linear feet of 6-inch gravity sewer, a 0.9 million gallon primary stabilization lagoon, a 1.8 million gallon polishing and storage lagoon with access dock and custom fabricated 12 inch screened intake pipe, a tablet chlorinator, a 5,000 gallon chlorine contact tank, primary 340 GPM non - submersible irrigation pump with an audible high water alarm with backup 350 GPM, 20 HP 3-stage non - submersible irrigation pump, a totalizing meter, a 11.47 acre wooded spray irrigation field, an all associated piping and appurtenances to serve Deerhurst Mobile Home Parr, with no discharge of wastes to surface waters, pursuant to the application received June 8, 2011, and subsequent additional information received by the Division of Water Quality, and in conformity with the project plans, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until January 31, 2015, shall void Permit No. WQ0002838 issued July 16, 2009 and shall be subject to the following specified conditions and limitations: WQ0002838 Version -12 Sbell Version 101229 Page 1 of 10 L SCHEDULES In accordance with 15A NCAC 02T .0116, upon completion of construction and prior to operation of this permitted facility, a certification (attached) shall be submitted from a licensed North Carolina Professional Engineer certifying that the permitted facility has been installed in accordance with this permit, Division approved plans and specifications, and other supporting documentation, including the location of all monitoring wells as applicable. If this project is to be, completed in phases and partially certified the Permittee shall retain the responsibility to track further construction a roved under the same permit, and shall provide a final certificate of coin. letion once the entire project has been completed. Mail the Certification to the Division of Water Quality, Aquifer Protection Section, 1636 Mail Service Center, Raleigh, NC 27699-1636. 2. The Raleigh Regional Office, telephone number (919) 791-4200, shall be notified at least 48 hours in advance (excluding weekends and holidays) of operation of the installed facilities such that an in - place inspection can be made. Notification to the Aquifer Protection Section's regional supervisor shall be made from 8:00 am. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 3. Within 12 months from the permit issuance date, a map of the sewer collection system shall be developed and actively maintained. Upon completion of the map, the Raleigh Regional Office shall be notified by telephone or mail at the phone number and/or address above. II. PERFORMANCE STANDARDS The subject non -discharge facilities shall be effectively maintained and operated at all times so there is no discharge to surface waters, nor any contravention of groundwater or surface water standards. In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions due to improper operation and maintenance, or failure of the irrigation areas to adequately assimilate the effluent, the Permittee shall take immediate corrective actions including Division required actions, such as the construction of additional or replacement wastewater treatment or disposal facilities. 2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface water resulting from the operation of this facility. 3. All wells constructed for purposes of groundwater monitoring shall be constructed in accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water Supply), and any other jurisdictional laws and regulations pertaining to well construction. WQ0002838 Version 2.2 Shell Version 101229 Page 2 of 10 4. The wastewater collection facilities shall be properly maintained and operated at all times. The Permittee shall maintain compliance with an individual system -wide collection system permit for the operation and maintenance of these facilities in accordance with 15A NCAC 02T .0400. If an individual permit is not required, the following performance criteria shall be met as provided in 15A NCAC 02T .0403. a, The sewer system shall be effectively maintained and operated at all times to prevent discharge to land or surface waters, and any contravention of groundwater or surface water standards. b. An operation and maintenance plan shall be developed, implemented and maintained. c. Pump stations not connected to a telemetry system shall be inspected every day (i.e., 365 days per year). Pump stations connected to a telemetry system shall be inspected at least once per week. d. High priority sewers shall be inspected at least once every six months. e. A general observation of the entire sewer system shall be conducted at least once per year. f. Overflows and bypasses shall be reported to the Raleigh Regional Office in accordance with 15A NCAC 02B .0506(a), and public notice shall be provided as required per North Carolina General Statute § 143-215. I C. g. A grease control program shall be developed, implemented and maintained, h. Right-of-ways and easements shall be maintained. i. Inspection and maintenance records for Conditions HA.a. through 11.4.i. shall be maintained for a period of at least three years, except for Conditions II.4.b. and IIA.c., which shall be maintained for the life of the system. 5. Effluent limitations shall not exceed those specified in Attachment A. 6. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in Attachment B. 7. The compliance boundary for the disposal system shall be specified in accordance with 15A NCAC 02L .0107(b). This disposal system was individually permitted on or after December 30, 1983; therefore, the compliance boundary is established at either 250 feet from the effluent disposal area, or 50 feet within the property boundary, whichever is closest to the effluent 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. 8. In accordance with 15A NCAC 02L .0108, the review boundary is established midway between the compliance boundary and the effluent disposal area. Any exceedance of groundwater standards at the review boundary shall require action in accordance with 15A NCAC 02L .0106. 9. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to any sale or transfer of property affecting a. compliance boundary. 10. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L .0107(g). WQ0002838 Version 2.2 Shell Version 101229 Page 3 of 10 IL Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is not the Permittee and owns land within the compliance boundary shall execute and file with the Wake County Register of Deeds an easement running with the land containing the following items: a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1); b. Prohibits construction and operation of water supply wells within the compliance boundary; and c. Reserves the right of the Permittee or the State to enter the property within the compliance boundary for purposes related to the permit. The Director may terminate the easement when its purpose has been fulfilled or is no longer needed. 12. The facilities permitted herein shall be constructed according to the following setbacks. a. The setbacks for irrigation sites shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: 400 ii. Any private or public water supply source: 100 iii. Surface waters: 100 iv. Groundwater lowering ditches: 100 v. Surface water diversions: 25 vi. Any well with exception of monitoring wells: 100 vii. Any property line: 150 viii. Top of slope of embankments or cuts of two feet or more in vertical height: 15 ix. Any water line from a disposal system: 10 x. Subsurface groundwater lowering drainage systems: 100 xi. Any swimming pool: 100 xii. Public right of way: 50 xiii. Nitrification field: 20 xiv. Any building foundation or basement: 15 b. The setbacks for storage and treatment units shall be as follows (all distances in feet): i, Any habitable residence or place of public assembly under separate ownership: 100 ii. Any private or public water supply source: 100 iii. Surface waters: 50 iv. Any well with exception of monitoring wells. 100 v. Any property line: 50 M. OPERATION AND MAINTENANCE RE UIREMENTS 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 .0507, which at a minimum shall include operational functions, maintenance schedules, safety measures and a spill response plan. ?. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC) classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or more certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the previously cited rules. WQ0002838 Version 2.2 Shell Version 101229 Page 4 of 10 3. A suitable year round vegetative cover shall be maintained at all times, such that crop health is optimized, allows for even distribution of effluent and allows inspection of the irrigation. system. 4. Adequate measures shall be taken to prevent effluent ponding in or runoff from the irrigation sites listed in Attachment B. 5. lrrigation shall not be performed during inclement weather or when the ground is in a condition that will cause ponding or runoff. 6. All irrigation equipment shall be tested and calibrated at least once per permit cycle. Calibration records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. 7. Only effluent from Deerhurst Mobile Home Park shall be irrigated on the sites listed in Attachment B. 8. No automobiles or machinery shall be allowed on the irrigation sites except during equipment installation or while maintenance is being performed. 9. Public access to the irrigation sites and wastewater treatment facilities shall be prohibited. 10. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan pursuant to 15A NCAC 02T .0508. 11. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is prohibited. 12. Freeboard in the lagoons shall not be less than two feet at any time. 13. A gauge to monitor waste levels in the lagoons shall be provided. This gauge shall have readily visible permanent markings indicating the following elevations: maximum liquid level at the top of the temporary liquid storage volume; minimum liquid level at the bottom of the temporary liquid storage volume; and the lowest point on top of the dam. 14. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e., outside toe of embankment to maximum allowable temporary storage elevation on the inside of the embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen embankment areas shall be kept mowed or otherwise controlled and accessible. 15. Solids and debris shall be pumped from the contact tank and pump tank every six (6) months. Records of this activity shall be maintained in the operations log, in accordance with Condition 1V.6. 16. The Permittee shall annually inform the residents of the Deerhurst Mobile Home Park of the need to keep fats, oils, and grease out of the collection and wastewater treatment system. The Permittee shall maintain records of these education efforts. IV. MONITORING AND REPORTING RE UTREMENTS 1. Any Division required monitoring (including groundwater, plant tissue, soil and surface water analyses) necessary to ensure groundwater and surface water protection shall be established, and an acceptable sampling reporting schedule shall be followed. 2. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all laboratory analyses for the required effluent, groundwater or surface water parameters. VWQ0002838 Version 2.2 Shell Version 101229 Page 5 of 10 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 to ensure the accuracy and reliability of flow measurement consistent with accepted engineering and scientific practices. Selected flow measurement devices shall be capable of measuring flows with a maximum deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year; and maintained to ensure the accuracy of measurements is consistent with the selected device's accepted capability. The Permittee shall maintain records of flow measurement device calibration on file for a period of at least five years. At a minimum, documentation shall include: a. Date of flow measurement device calibration, b. Name of person performing calibration, and c. Percent from true flow. 4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for the parameters specified in Attachment A. 5. The Permittee shall maintain adequate records tracking the amount of effluent irrigated. At a minimum, these records shall include the following information for each irrigation site listed in Attachment B: a. Date of irrigation; b. Volume of effluent irrigated; c. Site irrigated; d. Length of time site is irrigated; e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings; f. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically limited in Attachment B; g. Weather conditions; and h. Maintenance of cover crops. 6. Freeboard (i.e., waste level to the lowest embankment elevation) in the lagoons shall be recorded weekly. Weekly freeboard records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. Three copies of all monitoring data (as specified in Conditions IV.3. and IV.4.) on Form NDMR for each PPI and three copies of all operation and disposal records (as specified in Conditions IV.5. and IV.6. on Form NDAR-1 for every site in Attachment B 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 S. A record shall be maintained of all residuals removed from this facility. This record shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, this record shall include: a. Name of the residuals hauler; b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality agreeing to accept the residuals; c. Date the residuals were hauled; and d. Volume of residuals removed. WQ0002839 Version 2.2 Shell Version 101229 Page 6 of 10 9. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, this log shall include: a. Date of calibration of flow measurement device; b. Visual observations of the plant and plant site; and c. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections and cleanings, etc.). 10. Monitoring wells shall be sampled after construction and within 3 months prior to initiating non - discharge disposal operations. Monitoring wells shall be sampled thereafter at the frequencies and for the parameters specified in Attachment C. All naa in . well construction forms well abandonment forms and monitoring data shall refer to the permit number and the well nomenclature as provided in Attachment C. 11. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last working day of the month following the sampling month. The Compliance Monitoring Form (GW- 59) shall include this permit number, the appropriate well identification number, and one GW-59a certification form shall be submitted with each set of sampling results. 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 12. An annual representative soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted on each irrigation site listed in Attachment B. These results shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, the Standard Soil Fertility Analysis shall include the following parameters: Acidity Exchangeable Sodium Percentage Phosphorus Base Saturation (by calculation) Magnesium Potassium Calcium Manganese Sodium Cation Exchange Capacity Percent Humic Matter Zinc Copper pH WQ0002838 Version) 2 Shell Version 101229 Page 7 of 10 13. Noncompliance Notification: The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 791- 4200, 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 facility resulting in the treatment of significant amounts of wastes that is abnormal in quantity or characteristic, including the known passage of a hazardous substance. b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons, rendering the facility incapable of adequate wastewater treatment. c. Any facility failure resulting in a by-pass directly to receiving surface waters. d. Any time self -monitoring indicates the facility has gone out of compliance with its permit limitations. e, Ponding in or runoff from the irrigation sites. Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of a storage structure, etc.) outside normal business hours shall 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 days following first knowledge of the occurrence. This report shall outline the actions taken or proposed to be taken to ensure the problem does not recur. V. INSPECTIONS 1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the wastewater treatment and disposal facilities. 2. The Permittee or their designee shall inspect the wastewater treatment and disposal facilities to prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may cause the release of wastes to the environment, a threat to human health or a public nuisance. The Permittee shall maintain an inspection log that includes, at a minimum, the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken. The Permittee shall maintain this inspection log for a period of five years from the date of the inspection, and this log shall be made available to the Division upon request. 3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the wastewater treatment and disposal facilities permitted herein at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records required to be maintained under the terms and conditions of this permit, and may collect groundwater, surface water or leachate samples. VI. GENERAL, CONDITIONS Failure to comply with the conditions and limitations contained herein may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statutes 143- 215.6A to 143-215.6C. 2. This permit shall become voidable if the permitted facilities are not constructed in accordance with the conditions of this permit, the Division approved plans and specifications, and other supporting documentation. WQ0002838 Version 2.2 Shell Version 101229 Page 8 of 10 This permit is effective only with respect to the mature and volume of wastes described in the permit application, Division approved plans and specifications, and other supporting documentation. No variances to applicable rules governing the construction or operation of the permitted facilities are granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T .0105(n). 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 jurisdictional government agencies (e.g., local, state, and federal). 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; any requirements pertaining to wetlands under 15A NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of the General Statutes. 5. In the event the permitted facilities change ownership or the Permittee changes their name, a formal permit modification request shall be submitted to the Division. This request shall be made on official Division forms, and shall include appropriate property ownership documentation and other supporting documentation as necessary. The Permittee of record shall remain fully responsible for maintaining and operating the facilities permitted herein until a permit is issued to the new owner. 6. The Permittee shall retain a set of Division 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 pursuant to 15A NCAC 02T .01050). 8. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division Director, in whole or part for the requirements listed in 15A NCAC 02T .0110. 9. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). 10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to pay the annual fee accordingly shall be cause for the Division to revoke this permit pursuant to 15A NCAC 02T .0105(e)(3). Permit issued this the 16th day of September 2011 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Veen ullins, Director Division of Water Quality By Authority of the Environmental Management Commission Peru Number WQ0002838 WQ0002838 Version 2.2 Shell Version 101229 PaLre 9 of 10 Permit No. WQ0002838 American Residential Communities Deerhurst Mobile Home Park ENGINEERING CERTIFICATION ❑ Partial ❑ Final Wastewater Irrigation System September 16, 2011 Wake County In accordance with 15A NCAC 02T .0116,1, as a duly registered Professional Engineer in the State of North Carolina, having the Permittec's authorization to ❑ periodically ❑ weekly ❑ fully observe the construction of the pernnsitted facility, hereby state to the best of my abilities that due care and diligence was used in the observation of the construction, such that the facility was built within substantial compliance and intent of this permit, the Division approved plans and specifications, and other supporting documentation. ❑ Any variation to this permit, the Division approved plans and specifications, and other supporting documentation has been documented in the attached as -built drawings, and shall serve as the Permittee's minor modification request to amend the permit accordingly. Provide, a brief narrative description of any variations: Professional Engineer's Name Engineering Firm Mailing Address City State Zip Telephone E-mail NC PE Seal. Signature & Date THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING INFORMATION AND MATERIALS, SHALL BE SENT TO THE FOLLOWING ADDRESS: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY AQUIFER PROTECTION SECTION LAND APPLICATION UNIT By U.S. Postal Service: By Courier/Special Delivery: 1636 MAIL SERVICE CENTER 2728 CAPITAL BOULEVARD RALEIGH, NORTH CAROLINA 27699-1636 RALEIGH, NORTH CAROLINA 27604 WQ0002838 Version 2.2 Sheli Version 101229 Page 10 of 10 ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS PPI 001 — WWTF Eftlttent Permit Number: WQ0002838 Version: 2.2 EFFLUENT CHARACTERISTICS EFFLUENT LIM ITS MONITORING REQUIREMENTS PCS Code Parameter Description Average Monthly Geometric Mean Daily I�tinirnnrn Daily Maximum Measurement Frequency Sample Type 00310 130D, 5-Day (20 Deg_ C) 4 X year Grab 50060 Chlorine. Total Residual 4 X year Grab 31616 Coliforrm Fecal MF, M-FC Broth.44.5°C. 4 X year Grab 50050 Now. in conduit or thru treatment plant 19,229 GI'D Continuous Recorder 00610 Nitrogen, Animouia Total (as N) 4 X year Grab 00625 Nitrogen, Kjeldah1, Total (as N) 4 X year Grab 00620 Nitrogen. Nitrate Total (as N) 4 X year Grab 00400 pIl 4 X year Grab 00530 Solids. Total Suspended 4 X year Grab . 4 Y year monitoring shall be conducted in January, March, July, and November. WQ0002838 Version 2.2 Attachment A Page I oft THIS PAGE BLANK WQ00025_ ersion 2.2 Attu ei)t A ,e 2 of 2 ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS American Residential Communities — Deerhurst Mobile Home Park Permit Number: WQ0002838 Version: 2.2 IRRIGATION AREA INFORMATION APPLICATION LIMITATIONS Parameter Hourly Yearly Units Field Owner County Latitude longitude net Dominant Acreage Soil Series Rate Max A Arc Communities 15 LLC Wake 35050'48" 78025 3.08 WeB— Wedowee 01284 - Application Surface'22" 0.25 22 inches Loam Irrigation BArc Communities [5 LLC Wake 35050'48" 78025'22" 3.35 WeB — Wedowee 0.1284 - Application Surface 0.25 22 inchesSandy Loam Irrigation L. Arc Communities 15 LLC Wake 35°50'48" 78°25122" 2.46 WcB — Wedowee 01284 - Application Surface0.25 22 inches Sandy Loam Irrigation C? Arc Communities 15 LLC Wake 35050'48" 7$°25'22" 2.58 VaB — Vance 0I284 - Application Surface 0.25 22 inches Sandy Loam. Irrigation Totals 11.47 WQ0002838 Version 2.2 Attachment B Page I oF2 THIS PAGE BLANK WQ00028_ ersion 2.2 All, ent B ,;age 2 of I. ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Monitoring wells: MW-1, MW-2, MW-3, and MW-4 Permit Number: WQ0002838 Version: 2.2 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes 00680 Carbon, Tot Organic (TOC) 3 X year Grab 1,6 00940 Chloride (as Cl) 250 mg/L 3 X year Grab 1 31616 Colifortn, fecal MF, M-FC Broth, 44.5°C 3 X year Grab 1 00610 Nitrogen, Ammonia Total (as N) 3 X year Grab t 00620 Nitrogen, Nitrate Total (as N) 10 tng/L 3 X year Grab 1 00400 1.1 6.5 - 9.5 S.U. 3 X year Grab L 2 70300 Solids, Total Dissolved-180 De .0 500 mg/L 3 X year Grab l 78732 Volatile Compounds, (GC/MS) Annually Grab 1, 4, 5 82546 Water level, distance from measuring point 3 X year Calculated 1, 2, 3 I . 3 X Year monitoring shall he conducted in ]March, July & November. Annual monitoring shall be conducted every November. 2. The measurement of seater levels shall be inade 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 pi 1 shall be made after 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 common datum. 4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods: a. Standard Method 6230D, PQL at 0.5 pg/L or less b. Standard Method 62101), PQL at 0.5 µg/L or less c. EPA Method 8021, Low Concentration, PQL at 0.5 pg/l, or less d, GPA Method 8260, Low Concentration, PQI., at 0.5 pg/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 VIII of Standard Method 6230D. c. The method used must provide a PQL of 0.5 µg/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 l(g/L must be qualified (estimated) and reported. 5. 1 fatly volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Raleigh Regional Office Aquifer Protection Supervisor, telephone number (919) 791-4200, musk be contacted immediately for further instructions regarding any additional follow-up analyses required. 6. Il' TOC concentrations greater than 10 mg/I 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 represcnt 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. 7. Monitoring wells shall be reported consistent with [lie nomenclature and location information provided in this attachment. WQ0002838 Version 2.2 Attachment C Page l of I FORM: NDMR 08-11 NON -DISCHARGE MONITORING REPORT (NDMR) Page of Permit No.: WQ0002838 Facility Name. Deerhurst Mobile Home Park County: Wake Month: Year. PPI: 001 Flow Measuring Point: ❑ fnfluent ❑ Effluent ❑ No flow generated Parameter Monitoring Point: ❑ Influent ❑✓ Effluent ❑ Groundwater Lowering ❑ Surface Water Parameter Code -p, 50050 a LL _ 00310 50060 31616 00610 o = Q 00625 00620 1 2 00400 00530 n Q UH Q :7 £ �' i—(n U b ❑ O m O� wt 0 C� o 6 yw c LL om U 4)0 Y O z r = a m e p n. Q u,tn [n 24-hr hrs GPD mg1L rrigfL. #1100 mL mg1L mg/L mg1L su mgfL - - 1 3 — 5 -- - 6 T1 12 13 _ 14 --- 15 - - - -- 17 --- - 18 - — 19 20 21 22 23 24 25 - 26 27 28 - - 29 30 31 Average: Daily Maximum: -- — - — -- Daily Minimum: — - Sampling Type: Recorder Grab grab -- Grab Grab Grab Grau Gran Grab Monthly Limit: 19,229 — -- - Y Daily Ut: Sample Frequ, h X year X year Continuous 4 X year f47vew 4 X year 4 X year 4 X year 4 X year FORM: NDAR-1 08-11 NON -DISCHARGE APPLICATION REPORT (NDAR-1) Page Permit No.: WQ0002838 Facility Name: Deerhurst Mobile Home Park County: Wake Month: Year: Did irrigation Field Name: A Field Name: B Field Name. C Field Name: D occur at this facility? ❑ YES ❑ NO Area (acres): Cover Crop 308 - Area (acres): 135 - Area {acres]: 246 _ - - 025 Area (acres): 2.58 Cover Crop: Cover Crop- Hourly Bate (in): Cover Crop: Hourly Rate (in): Annual Rate (in)! 0.25 Hourly Rate (in): 0.25 Hourly Rate (in): 0.25 22 Annual Rate (in): 22 Annual Rate (in) _ 22 Annual Rate (in): 22 Weather Freeboard Field Irrigated? ❑ Yl:s - ❑ NO Field Irrigated? ❑ YES ❑ No Field Irrigated? ❑ Yr.�, ❑ NO Field irrigated? ❑ ves ❑ No (G ❑t o , 41 s E 3 ° ° y Q en w °a7 z) .2 a ❑ N = Q > M C ❑ M J E Q m _j � > - �• Ca J E rn o m J EQ O¢ > Q �rn 4xA Q � o J a- a� O E rnC x� ' -6 _ �� J °F in ft ft gal min in in gal ruin in in gal min in _t in - gal min in in 1 3- _ - - 4 5 -- - -' - 7 - -- — a10 -- 9 - -'- - 11 -- -- - -- - 12 13 14 15 16 17 1$ 19 -- 20 -- 2 - 22 23 24 25 -- 26 - - 27 �. 28 - -- ----- 29- - -- 30 •- -nthly Loading: i2 Month ring Total (in): ' _ 7