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HomeMy WebLinkAboutWQ0005849_Final Permit_20070831� WA Q +QQG Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources D %a—mmowk.- 'C Coleen H. Sullins Director Division of Water Quality August 31, 2007 RICHARD DuRHAM — REGIONAL DIRECTOR NORTH TOPSAIL UTILITIES, INC. POST OFFICE Box 240908 CHARLOTTE, NORTH CAROLINA 28224-0909 Subject: Permit No, WQ0005849 North Topsail WWTF Wastewater Treatment, Irrigation and High -Rate Infiltration System Onslow County Dear Mr. Durham: In accordance with your permit modification request received July 25, 2007, and subsequent additional information received August 20, 2007, we are forwarding herewith Permit No. WQ0005849, dated August 31, 2007, to North Topsail Utilities, Inc, for the construction and continued operation of the subject wastewater treatment, irrigation and high -rate infiltration facilities. The subject modification is to: abandon the existing facultative lagoon treatment plant; convert Lagoon 94 into an emergency equalization basin; abandon Fields 1, 13 and a portion of 14 in order to construct infiltration basins IA and IB; construct a membrane bio-reactor (MBR) wastewater treatment plant; and construct a groundwater lowering discharge system. This permit shall be effective from the date of issuance until November 30, 2010, shall void Permit No. WQ0005849 issued December 28, 2005, 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 the Division has adopted the Subehapter 2T rules, a new monitoring policy and permit shell since the previous permit issuance. Therefore, several effluent parameters and their monitoring frequencies may have changed, as well as some standard permit conditions. 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. NorthCarolina Natur-9!!y Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Telephone : (919) 733-322 t Internet: www.ncwater uali .or Location: 2728 Capital Boulevard Raleigh, NC 27604 Fax 1: (919) 715-0588 Fax 2: (919) 715-6048 An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10%Post Consumer Paper Customer Service: (877) 623-6748 One set of approved plans and specifications is being forwarded to you. If you need additional information concerning this matter, please contact Nathaniel Thornburg at (919) 115-616b or nathaniel.thornburg@ncmail.net. cc: Onslow County Health Department Wilmington Regional Office, Aquifer Protection Section Robert G. Burgin, PE --- Burgin Engineering, Inc. Technical Assistance and Certification Unit APS Central Files LAU Files NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH HIGH -RATE INFILTRATION & 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 North Topsail Utilities, Inc. Onslow County FOR THE continued operation of the existing 873,500 gallon per day (GPD) wastewater treatment and irrigation disposal facility consisting of. a Parshall flume; an ultrasonic flowmeter; a manually -cleaned bar screen; a three -cell facultative lagoon that is approximately 42.2 acres in area and contains approximately 57 million gallons of capacity; a fourth facultative lagoon, approximately 9.5 acres in area and containing approximately 22.4 million gallons of storage; a tablet chlorinator; a 138,875-gallon chlorine contact chamber; an irrigation pump station containing duplex 1800 gallon per minute (GPM) pumps and automatic shut-off controls; an effluent flowmeter; and approximately 200.2 acres of irrigation area; the construction and operation of a 2,000,000 gallon per day (GPD) rated wastewater treatment plant consisting of an influent flume; a Parshall flume with an ultrasonic flowmeter; a flow division box; a 40 GPM headworks booster wash pump; two (2) rotary drum screens with 2 millimeter (nun) openings and its associated dewatering conveyor; a drum screen effluent flume; a 12 foot (ft) diameter vortex grit separator with a 250 GPM grit pump and classifier; a drain pump station with two (2) 125 GPM submersible pumps and audible/visual high water alarms; four (4) interconnected 88 ft diameter aerated flow equalization basins with a cumulative volume of 1,480,939 gallons and four (4) 2,536 GPM mixing pumps for the aspirating jet aerators; a BNR feed master pump station with four (4) 694 GPM pumps and four (4) dedicated electromagnetic flowmeters; two (2) 20,217 gallon degas tanks with two (2) three horsepower (hp) mixers; two (2) 40,000 gallon anaerobic selector tanks with two (2) three hp mixers; a 4,000 gallon methanol tank with a chemical metering pump serving the anaerobic selector tanks; an aerobic/anoxic tank with a distribution box, four (4) 133,000 gallon phased aeration cells served by three (3) 1,221 cubic feet per minute (CFM) blowers and four (4) three hp mixers, and a concentric 130,000 gallon secondary anoxic tank with a 3 hp mixer; a 4,000 gallon alum tank with two (2) chemical metering pumps serving the secondary anoxic tank and an alum recirculation pump; a mixed liquor feed forward pump station with four (4) 2,313 GPM pumps (one pump is a swing spare) and three (3) dedicated electromagnetic flow meters; three (3) membrane tanks with a cumulative volume of 152,000 served by four (4) 890 CFM air scouring blowers, forty-two membrane modules, seven (7) 309 GPM permeate pumps and seven (7) dedicated electromagnetic flowmeters; citric acid and sodium hypochlorite (NaOCI) clean in place tanks with two (2) 2.3 GPM chemical transfer pumps and two (2) 30 GPM chemical fill pumps; a 560 GPM membrane booster wash pump; a degas recycled activated sludge (RAS) splitter box; a phased aeration RAS splitter box; a waste activated sludge (WAS) electromagnetic flowmeter; a 576,200 gallon aerated sludge holding basin served by two (2) 2,311 CFM blowers; four (4) turbidimeters; an ultraviolet (UV) disinfection system with two (2) banks and forth -eight total lamps; an auxiliary generator and transfer switch; the WQ0005849 Version 2.1 Shell Version 070612 Page 1 of 12 construction and operation of a 340,128 GPD high -rate infiltration disposal facility consisting pf. a 9,155,482 gallon infiltration basin (1A) with a 1.71 acre footprint and a 8,643,387 gallon infiltration basin (1B) with a 1.50 acre footprint, and both with a designed loading rate of 1.76 gallons per day per square foot (GPD/ft); the construction and operation of a 500,000 GPD groundwater lowering system consisting of: a groundwater lowering underdrain perforated piping system placed at an elevation of 19 feet mean sea level and completely encircling infiltration basins 1A and 1B; a groundwater lowering pump station with two (2) 347 groundwater lowering pumps and a turbine flowmeter discharging to four (4) ponds (i.e., Ponds 2, 3, 4 and 5) south of the proposed treatment plant site; five (5) level spreaders (one in each pond except for Pond #3, which will have two); the conversion of the fourth facultative lined lagoon into an emergency equalization basin with approximately 22.4 million gallons of storage; the abandonment of Fields 1, 13 and a portion of 14 in order to construction infiltration basins 1A and 1B, which will require the removal of approximately 19.86 acres of irrigation area resulting in a new irrigation area of approximately 180.16 acres; the abandonment of portions of the existing treatment facility units (upon construction and operation the wastewater treatment units listed above) specifically consisting of: a Parshall flume; an ultrasonic flowmeter, a manually -cleaned bar screen; a three -cell facultative lagoon that is approximately 42.2 acres in area and contains approximately 57 million gallons of capacity (See Condition 1.7. for the lagoon closure plan requirements); a tablet chlorinator, transfer of following collection system components from permit number WQ0005849 to permit number WQCS00275 under Rule 15A NCAC 2T .0400: approximately 3,200 linear feet of 12-inch gravity sewer, approximately 3,000 linear feet of six-inch force main, approximately 26,730 linear feet of 10-inch force main, approximately 19,100 linear feet of 12-inch force main; a 2,600 gallon per minute (GPM) duplex pump station with high-water alarms, stand-by power; two 1050 GPM duplex pump stations, each with high-water alarms and stand-by power; resulting in a treatment system permitted for 873,500 GPD disposal prior to construction and operation of the subject modifications, and a final disposal design of 1,159,297 GPD (340,128 GPD to Infiltration Basins 1A and 1B, and 819,169 to the remaining irrigation fields) to serve the North Topsail WWTF, with no discharge of wastes to the surface waters, pursuant to the application received July 25, 2007, and subsequent additional information received by the Division of Water Quality (Division), and in conformity with the project plan, 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 November 30, 2010, shall void Permit No. WQ0005849 issued December 28, 2005, and shall be subject to the following specified conditions and limitations: WQ0005849 Version 2.1 Shell Version 070612 Page 2 of 12 �. SCHEDULES L In accordance with 15A NCAC 2T .0505(f) and .0704(f), within 90 days of permit issuance, the Permittee shall provide information demonstrating the Permittee has proper ownership documentation of the North Topsail WWTP site. Documentation shall include either a legal deed showing the Permittee as the owner of the site, or a written notarized lease agreement signed by both Utilities, Inc. and North Topsail Utilities, Inc., specifically indicating the intended use of the property. Mail this information to the Aquifer Protection Section, Division of Water Quality, 1636 Mail Service Center, Raleigh, NC 27699-1636. 2. Upon completion of construction and prior to operation of this permitted facility, a certification (see attached form) must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting materials including the location of all monitoring wells as applicable, if this project is to bg. completed in phases and partially certified,youu shall retain the responsibility to tr c fu rther construction._apuroved under the same permit, and shall urovide a final certificate of completion once the entire project has been completed. Mail the Certification to the Aquifer Protection Section, Division of Water Quality, 1636 Mail Service Center, Raleigh, NC 27699-1636. 3. The Wilmington Regional Office, telephone number (910) 796-7215, shall be notified at least 48 hours in advance (excluding weekends and holidays) of operation of the installed facilities so that an in -place inspection can be made. Such notification to the Aquifer Protection Section regional supervisor shall be made during the normal office hours from &00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 4, Within 60 days of completion of Infiltration Basin IA and IB, and the abandonment of Fields 1, 13 and a portion of 14, the permittee shall submit two original copies of a scaled site map (scale no greater than 1"=100'); however, special provisions may be granted upon prior approval for large properties. The map(s) must include the following information: a. The location and identity of each monitoring well. b. The location of major components of the waste disposal system. c. The location of property boundaries within 500 feet of the disposal areas. d. The latitude and longitude of the established horizontal control monument. e, The elevation of the top of the well casing (which shall be known as the "measuring point") relative to a common datum. f. The depth of water below the measuring point at the time the measuring point is established. g. The location of review and compliance boundaries. h. The date the map is prepared and/or revised. Control monuments shall be installed in such a manner and made of such materials that the monument will not be destroyed due to activities that may take place on the property. The maps and any supporting documentation shall be sent to the N.C. Division of Water Quality, Aquifer Protection Section, 1636 Mail Service Center, Raleigh, N.C. 27699-1636. The permittee is responsible for the geographic accuracy of any map submitted, however produced, 5. If not already installed, waste -level gauges to monitor waste levels in Lagoon #1, Lagoon #2, Lagoon #3 and Lagoon #4 shall be installed within 60 days of issuance of this permit, Waste -level gauges for Infiltration Basin I and Infiltration Basin I shall be installed prior to operation. 6. 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. WQ0005849 Version 2.1 SheIl Version 070612 Page 3 of 12 7. Prior to operation of the subject wastewater treatment plant modifications and in conjunction wilh.the engineering certification requirement in Condition I. I., provide the Wilmington Regional Office's Aquifer Protection Section with a lagoon closure plan for the 3-cell facultative lagoons. For more information regarding lagoon closures, please review the Guidelines for the Closure of Treatment Ponds and Lagoons Memorandum located at; http://h2o.cnr.state.nc.us/lau/policies.html. Upon completion of excavation, the basin shall be inspected by a licensed Geologist to verify that the geologic material present will be capable of receiving the wastewater at the permitted loading rate. The results of this inspection and the required verification shall be signed, sealed and submitted to the Aquifer Protection ,Section, Land Application Unit, 1636 Mail Service Center, Raleigh, NC 27699-1636. The requested information must be received and acknowledged in writing by the Aquifer Protection Section prior to the operation of the subject facility. 9. The Permittee shall advise the Wilmington Regional Office's Aquifer Protection Section in writing of any change in the assignments of the designated farm manager and alternate manager within. 14 days of the change. 10. The farm manager shall always be provided with a copy of the most current version of this permit. II. PERFORMANCE STANDARDS The high -rate infiltration and surface irrigation 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 basins or irrigation areas 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. All wells that are 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 state and local laws and regulations pertaining to well construction. 4. Effluent limitations shall not exceed those specified in Attachment A. 5. Application rates, 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. 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). WQ0005849 Version 2.1 Shell Version 070612 Page 4 of 12 � t 9. , Except as provided for in 15A NCAC 02L ,0107(g), the Permittee shall ensure that any landowner Who owns land within the compliance boundary, but who is not the permittee, shall execute and file with the Register of Deeds in the county in which the land is located an easement running with the land that contains 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. 10. 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. 11. The facilities permitted herein must be constructed according to the following setbacks: a. The setbacks for high -rate infiltration basins shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: 400 ii. Any habitable residence or place of public assembly owned by the permittee: 200 iii. Any private or public water supply source: 100 iv. Surface waters: 100 v. Groundwater lowering ditches: 100 vi. Surface water diversions: 50 vii. Any well with exception of monitoring wells: 100 viii.Any property line: 200 ix. Top of slope of embankments or cuts of two feet or more in vertical height: 100 x. Any water line from a disposal system.: 10 xi. Subsurface groundwater lowering drainage systems: 100 xii. Any swimming pool: 100 xiii.Public right of way: 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 proposed wastewater treatment units (see permit description) 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 WQ0005849 Version 2.1 Shell Version 070612 Page 5 of 12 c. The setbacks for the irrigation fields shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: 400 ii. Surface waters: 100 iii. Any well with exception of monitoring wells: 100 iv. Any property line: 150 v. Public right of way: 50 d. The setbacks for the existing and to be abandoned wastewater treatment and storage units (see permit description) shall be as follows (all distances in feet): i. Any well with exception of monitoring wells: iL Any property line: 100 150 12. The irrigation disposal system shall be connected to a rain or moisture sensor that shall indicate when wastewater application is not appropriate in accordance with Condition 111.4. and III.5. of this permit. 13. A usable green area shall be maintained for the high -rate infiltration wastewater disposal. The green area shall have the capability of accommodating the high -rate infiltration portion of the average daily flow (i.e., 340,128 GPD) 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 REQUIREMENTS 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 and .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 09G .0200 or as specified in this permit and shall comply with all other conditions specified in these rules. 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 irrigation system. Note that such proper maintenance shall also include cover crop harvesting and removal. The crop management plan developed by W.R. Dunlop, Jr., LSS that recommends tall fescue as a cover crop for the wetted area of the spray irrigation facilities shall be followed. Any variation from this plan shall require the recommendation of a North Carolina -licensed professional soil scientist and agronomist as well as the approval of the Wilmington. Regional Offzce's Aquifer Protection Section. 4. Adequate measures shall be taken to prevent wastewater ponding or runoff from the irrigation fields, and high -rate infiltration basin breakout. 5. Irrigation shall not be performed during inclement weather or when the ground is in a condition that. will cause ponding or runoff. 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. WQ0005849 Version 2.1 Shell Version 070612 Page 6 of 12 7. No type of wastewater other than that from the North Topsail WWTF shall be disposed onto the -irrigation area or into the high -rate infiltration basins. S. 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. Public access to the land application sites shall be controlled, Such controls may include the posting of signs showing the activities being conducted at each site, 11. The residuals generated from these treatment facilities must be disposed / utilized in accordance with 15A NCAC 02T .l 100. The Permittee shall maintain a residual management plan pursuant to 15A NCAC 02T .0508 and .0705. 12. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 13. Freeboard in Lagoon #1, Lagoon #2, Lagoon #3, Lagoon #4, Infiltration Basin IA and Infiltration Basin I shall not be less than 2 feet at any time. 14. Waste -level gauges, to monitor waste levels in Lagoon #1, Lagoon #2, Lagoon #3, Lagoon #4, Infiltration Basin 1A and Infiltration Basin 1B, shall be provided. These gauges shall have readily visible permanent markings indicating the 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 elevations. Caution must be taken not to damage the integrity of the liner when installing the gauges in Lagoon #1, Lagoon #2, Lagoon #3 and Lagoon #4. 15. A protective vegetative cover shall be established and maintained on all earthen basin embankments (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 basin dikes or embankments. Earthen basin embanlanent areas shall be kept mowed or otherwise controlled and accessible. 16. The Permittee shall perform soil maintenance with deep tillage as needed to restore the soil percolation capability, checking to determine the need for tillage every ten (10) years. 17. Prior to abandonment of the chlorine disinfection system, 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. 18. Infiltration basins 1A and 113 shall be periodically dredged to remove deposited materials that may impede the infiltration process. Records shall be kept on site for a period of five (5) years, and the Wilmington Regional Office's Aquifer Protection Section shall be notified prior to dredging. IV. MONITORING AND REPORTING REQUIREMENTS 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. 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. WQ0005849 Version 2.1 Shell Version 070612 Page 7 of 12 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 frequencies and locations for the parameters specified in Attachment A. 5, The Permittee tracking the amount of wastewater infiltrated 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. Basin infiltrated, d. Loading rates to each infiltration site list in Attachment B, and e. Weather conditions. 6. The Permittee tracking the amount of wastewater irrigated shall maintain adequate records. These records shall include, but are not necessarily limited to, the following information: a. Date of irrigation, b. Volume of wastewater irrigated, e. Field irrigated, d. Length of time field is irrigated, e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field, f. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically limited in Attachment B for each field, g. Weather conditions, and h. Maintenance of cover crops. 7. Freeboard (i.e., waste level to the lowest elevation on the top of the embankment) in Lagoons #1, 2 and 3 prior to abandonment shall be recorded weekly. Freeboard (i.e., waste level to the lowest elevation on the top of the embankment) in Infiltration Basins IA and 1B, as well as Lagoon #4 shall be recorded weekly. 8. Monitor wells shall be sampled after construction and within three months prior to initiating waste disposal operations. Monitor wells shall be sampled thereafter 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 Figure DENR-I. WQ0005849 Version 2.1 Shell Version 070612 Page 8 of 12 9. 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. 10. Three copies of all monitoring data [as specified in Conditions IV.3. and IV.4.1 on Form NDMR for each point prior to irrigation (PPI) and three copies of all operation and disposal records [as specified in Conditions IV.5. and IV.7.] on Form NDAR-1 for every irrigation area shall be submitted on or before the Iast day of the following month. In addition, three copies of all operation and disposal records [as specified in Conditions IV.6. and IV.7.] on Form NDAR-2 shall be submitted on or before the last day of the following month for every high -rate infiltration basin. 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 11. An annual plant tissue analysis shall be conducted on each irrigation field (i.e., Fields 1 through 34), and the results maintained on file by the Permittee for a minimum of five years. 12. An annual representative soils analysis (Standard Soil Fertility Analysis) shall be conducted on each irrigation field (i.e., Fields I through 34), and the results maintained on file by the Permittee for a minimum of five years. The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following parameters: Acidity Manganese Potassium Calcium Percent Humic Matter Sodium Copper pH Zinc Magnesium Base Saturation (by calculation) Phosphorus Cation Exchange Capacity Exchangeable Sodium Percentage WQ0005849 Version 2.1 Shell Version 070612 Page 9 of 12 13. Noncompliance Notification: V. 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 irrigation areas, runoff from the irrigation areas or high -rate infiltration basin breakout. 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/irrigation 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. 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. 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. WQ0005849 Version 2.1 Shell Version 070612 Page 10 of 12 i 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 i 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 NCG010000, 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 Permittee, 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. 8. The Permittee must pay the annual fee within 30 days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit pursuant to 15A NCAC 02T .0105(e). Permit issued this the 31" day of August 2007 NORTH AL MANAGEMENT COMMISSION Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0005849 WQ0005849 Version 2.1 Shell Version 070612 Page 11 of 12 Permit No. WQ0005849 August 31, 2007 ENGINEER'S CERTIFICATION Partial Final 1, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, Project Name Location and County for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of this permit, the approved plans and specifications, and other supporting materials. Signature Date Registration No. WQ0005849 Version 2.1 Shell Version 070612 Page 12 of 12 ATTACHMENT A _ LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0005849 Version: 2.1 PPI 001 WWTF Effluent — Pre Construction (Sampling regimen prior to completion of the permitted modifications) EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Parameter Description - PCS Code Monthly Average 2 Weekly Average Daily Maximum Measurement Frequency Sample Type SOD, 5-Day (20 Deg. C) — 00310 30 mg/1 2 x month Composite Chloride (as Cl) — 00940 3 x year t Composite Chlorine, Total Residual — 50060 Daily (5 x week) Grab Coliform, Fecal MF, M-FC Broth, 44.5C — 31616 200 #/100 ml 2 x month Grab Flow, in Conduit or thru Treatment Plant — 50050 873,500 gpd Continuous Recording Nitrogen, Ammonia Total (as N) -- 00610 15 mg/l 2 x month Composite Nitrogen, Nitrate Total (as N) — 00620 2 x month Composite pH — 00400 6-9 S.U. Daily (5 x week) Grab Solids, Total Dissolved — 70300 3 x year' Composite Solids, Total Suspended— 00530 30 mg/l 2 x month Composite 1. 3 x year: March, July and November 2. Monthly average for Fecal Coliform shall a geometric mean WQ0005849 Version 2.1 Attachment A Page 1 of 4 PPI 002 WWTF Effluent — Post Construction (Sampling regimen post completion of the permitted modifications) EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENT'S Parameter Description - PCS Code Monthly Average a Weekly Average Daily Maximum Measurement Frequency Sample Type BOD, 5-Day (20 Deg. C) — 00310 10 Mg/1 3 x week Composite Chloride (as Cl) — 00940 3 x year Composite Coliforrn, Fecal MF, M-FC Broth, 44.5C-31616 M #/100 ml 3 x week Grab Flow, in Conduit or thru Treatment Plant -- 50050 1,159,297 gpd Continuous Recording Nitrogen, Ammonia Total (as N) — 00610 4 mg/l 3 x week Composite Nitrogen, Nitrate Total (as N) — 00620 10 mgll 3 x week Composite Nitrogen, Total (as N) — 00600 7 mg/1 3 x week Composite pH — 00400 6-9 s. u. Daily (5 x week) Grab Phosphorus, Total (as P) — 00665 3 Ingll 3 x week Composite Solids, Total Dissolved — 70300 3 x year I Composite Solids, Total Suspended — 00530 15 mg/l 3 x week Composite Turbidity, HCH Turbidimeter — 00076 Continuous Recording I . 3 x year: March, July and November 2. Monthly average for Fecal Coliform shall a geometric mean WQ00058 iersion 2.1 Attachment A e 2 of 4 PP1003 Groundwater Lowering System Effluent — Post Construction (Sampling regimen post completion of the permitted modification) EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Parameter Description - PCS Code Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type SOD, 5-Day (20 Deg. C) — 00310 Weekly Grab Carbon, Tot Organic (TOC) — 00680 3 x year ` Grab Chloride (as Cl) — 00940 3 x year ` Grab Coliforrn, Fecal MF, M-FC Broth, 44.5C— 31616 Weekly Grab Plow, in Conduit or thru Treatment Plant — 50050 500,000 gpd Continuous Recording Nitrogen, Ammonia Total (as N) — 00610 Weekly Grab Nitrogen, Nitrate Total (as N) — 00620 Weekly Grab Nitrogen, Total (as N) — 00600 Weekly Grab pH — 00400 Weekly Grab Phosphorus, Total (as P) — 00665 Weekly Grab Solids, Total Dissolved- 180 Deg C — 70300 3 x year Grab 1. 3 X year monitoring shall be conducted in March, July & November. WQ0005849 Version 2.1 Attachment A Page 3 of 4 PPI 004 ,Surface Water Testing Station #1 (See Figure SWTS-1) EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Parameter Description - PCS Code Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type BOD, 5-Day (20 Deg. C) — 00310 Monthly Grab Coliform, Fecal MF, M-FC Broth, 44.5C — 31616 Monthly Grab Nitrogen, Ammonia Total (as N) — 00610 Monthly Grab Nitrogen, Nitrate Total (as N) — 00620 Monthly Grab Nitrogen, Total (as N) — 00600 Monthly Grab pH — 00400 Monthly Grab Phosphorus, Total (as P) — 00665 Monthly Grab Salinity Monthly Grab Solids, Total Dissolved- 180 Deg C — 70300 3 x year t Grab 1. 3 X year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every.November. WQ0005S lersion 2.1 Attachment A 4 of 4 ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS North Topsail Utilities, Inc. - North Topsail WWTF Permit Number. WQ0005849 Version: 2.1 IRRIGATION AREA INFORMATION APPLICATION LIMITATIONS Fieldf Basin Owner County Latitude Longitude Net Acreage Dominant Soil Series. Parameter Dose Yearly Max Units 1 * North Topsail Utilities, Inc. Onslow 8.18 01284 - Application Surface Irrigation 62.05 inches 2 North 'Topsail Utilities, Inc. Onslow 4.80 01284 -Application Surface Irrigation 52.93 inches 3 North Topsail Utilities, Inc. Onslow 4.28 01284 - Application Surface Irrigation 52.93 inches 4 North Topsail Utilities, Inc. Onslow 3.76 01284 -Application Surface Irrigation 62.05 inches 5 North Topsail Utilities, Inc. Onslow 2.86 01284 -Application Surface Irrigation 52.93 inches 6 North Topsail Utilities, Inc. Onslow 10.00 01284 - Application Surface Irrigation 70.57 inches 7 North Topsail Utilities, Inc. Onslow 8.70 01284 -Application Surface Irrigation 69.35 inches 8 North Topsail Utilities, Inc. Onslow 12.39 01284 - Application Surface Irrigation 69.35 inches 9 North Topsail Utilities, Inc. Onslow 7.27 01284 - Application Surface Irrigation 67.53 inches 10 North Topsail Utilities, Inc. Onslow 4.80 01284 - Application Surface Irrigation. 67.53 inches 1 I North Topsail Utilities, Inc. Onslow 7.14 01284 - Application Surface Irrigation 6T53 inches 12 North Topsail Utilities, Inc. Onslow 7.67 01284 - Application Surface Irrigation 60.83 inches 13 ** North Topsail Utilities, Inc. Onslow 8.05 01284 -Application Surface Irrigation 70.57 inches 14*** North Topsail Utilities, Inc. Onslow 727 01284 - Application Surface Irrigation 69.35 inches 15 North Topsail Utilities, Inc. Onslow 7.40 0 12 84 - Application Surface Irrigation 67.53 inches 16 North Topsail Utilities, Inc. Onslow 7.79 01284 - Application Surface irrigation 67.53 inches 17 North Topsail Utilities, Inc. Onslow 7.92 01284 -- Application Surface Irrigation 60.83 inches 18 North Topsail Utilities, Inc. Onslow 7.92 01284 - Application Surface Irrigation 62.05 inches 19 North Topsail Utilities, Inc. Onslow 6.36 01284 -- Application Surface Irrigation 60.83 inches 20 North Topsail Utilities, Inc. Onslow 1.56 Baymeade 01284 -Application Surface Irrigation 0.2 52.00 inches 21 North Topsail Utilities, Inc. Onslow 1.56 Woodington 01284 - Application Surface Irrigation 0.15 42.20 inches 22 North Topsail Utilities, Inc. Onslow 3.12 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches 23 North 'Topsail Utilities, Inc. Onslow 5.72 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches 24 North Topsail Utilities, Inc. Onslow 7.02 Baymeade 01284 -Application Surface Irrigation 0.2 52.00 inches WQ0005849 Version 2.1 Attachment B Page I of 2 IRRIGATION AREA INFORMATION APPLICATION LIMITATIONS Field/ Basin Owner County Latitude longitude Net Acreage Dominant Soil Series Parameter Dose Yearly Max Units 25 North Topsail Utilities, Inc. Onslow 5.72 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches 26 North Topsail Utilities, Inc. Onslow 5.72 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches 27 North Topsail Utilities, Inc. Onslow 2.60 Baymeade 01284 -Application Surface Irrigation 0.2 52.00 inches 28 North Topsail Utilities, Inc. Onslow 3.12 Baymeade 01284 -Application Surface Irrigation 0.2 52.00 inches 29 North Topsail Utilities, Inc. Onslow 4.68 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches 30 North Topsail Utilities, Inc. Onslow 5.46 Woodington 01284 - Application Surface Irrigation 0.15 42.20 inches 31 North Topsail Utilities, Inc. Onslow 3.90 Woodington 01284 - Application Surface Irrigation 0.15 42.20 inches 32 North Topsail Utilities, Inc. Onslow 2.86 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches 33 North Topsail Utilities, Inc. Onslow 6.50 Baymeade 01284 -Application Surface Irrigation 0.2 52.00 inches 34 North Topsail Utilities, Inc. Onslow 5.72 Baymeade 01284 - Application Surface Irrigation 0.2 52.00 inches Total Area Prior to Abandonment of Fields 1,13 and a portion of 14 200.2 Total Area After Abandonment of Fields 1,13 and a portion of 14 180.16 * To be abandoned in order to construct the proposed wastewater treatment facility ** To be abandoned in order to construct Infiltration Basins IA and 113 *** 3.63 acres of Field 14 is to be abandoned to construct Infiltration Basins I and I resulting in a new area of 3.64 acres INFILTRATION BASIN INFORMATION APPLICATION LIMITATIONS Basin Owner County Latitude Longitude Net Acreage Dominant Soil Series Parameter Rate yearly Max .Units IA North Topsail Utilities, Inc. Onslow 34° 32' 38" -77° 25' 49" 1.71 Baymeade 01284 -Application Surface Irrigation 1.76 gpd/f 2 1 S North Topsail Utilities, Inc. Onslow 34' 32' 34" -770 25' 49" 1.50 Baymeade 01284 -Application Surfacc Irrigation 1.76 gpd/ft? TotalI 1 1 3.22 WQ00058 rersion 2.1 Attachment B ,e 2 of 2 ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Monitoring wells: MW-1, MW-3, MW-4 and MW-5 Permit Number: WQ0005849 Version: 2.1 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS Parameter Description - Parameter Code Daily Maximum .Frequency Measurement Sample Type Footnotes Carbon, Tot Organic (TOC) — 00680 mg/l 3 x Year Grab 1,6 Chloride (as Cl) — 00940 250 mg/l 3 x Year Grab 1 Coliform, Fecal MF — 31616 #/100ml 3 x Year Grab l Nitrogen, Ammonia Total (as N) — 00610 m0 3 x Year Grab 1 Nitrogen, Nitrate Total (as N) — 00620 10 mg/l 3 x Year Grab 1 pH — 00400 6.5-8.5 S.U. 3 x Year Grab 1,2 Solids, Total Dissolved- 180 Deg C — 70300 S00 mg/l 3 x Year Grab I Volatile Organic Compounds (GC/MS) — 78732 mg/l Annual Grab 1, 4, 5 Water level, distance from measuring point— 82546 ft 3 x Year Calculated 1, 2, 3 1, 3 X year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November. 2. The measurement of water levels shall be made 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 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 µg/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 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 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 µg/L must be qualified (estimated) and reported. 5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Wilmington Regional Office Aquifer Protection Supervisor, telephone number (910) 796-72I5, must be contacted immediately for further instructions regarding any additional follow-up analyses required. 6. 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. 7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure DENR-I and this attachment. WQ0005849 Version 2.1 Attachment C Page I of 1 WQ0005849 — N Lh Topsail WWTF 1095 NC Hwy 210 Sneads Ferry, NC 28460 Latitude: 34' 52' 04" Longitude: -770 25' 29" '0_ 1095 No If Igh1 0. s North[} E '0w club �3 I'ri S 0.5 km 1500 _ 4 Ell p1.Ta � DNS le p- pvE C. Figure: SWTS-1 ` � i bid'. _ � ' � n.� _ r .� ,i'. '+S ..� .• FOR BASIN CROSS SECTIONS PROPOSED 10- BASIN SEE SHEET DET-2 DRAIN LINES (TYR SEE SHEET T, N CR CLEAN OUIT (3 IC 1- R4 §EE. DETAIL ET -I TUA SITE LEGEND PROPERTY LINE EXISTING 5' CONTOUR LNE .SE USED PCBCONTOUR LINE'LAIE�JRATI C. SASNL cv EXISTING DIRT ROAD V EXISTING BUILDINGS WETLANDS PR kil 4 v —20— PROPOSED 5' CONTOUR LINE. .......... SE POW PROPOSED 1CONTOUR LINE 7, PROPOSED DIRT ROAD PROPOSED STRUCTURES y. - - - - - - - - - - - - EQUIPMENT SET13ACK LINE — — — — — — PROPOSED 10" DRXN LINES Q EXISTING PROPOSED 10*/16" FORCE MAIN L ON PROPOSED 12" DISTRIBUTION PIPING AIL". GRADING E ABANDONED PROPOSED BASIN WATER ELEV. LINE T TO EXIST. REM WTA 2-12" TAPPING SLEEVE & EXISTIN VALVES LAGOON 2 PROPOSED BASIN DAM LINES 2-12" GATE VALVES --IqIBOXES IRDPO'.LU 11 —CB— COMPLIANCE BOUNDARY REDUCERS RD-----Ro— REkAEW BOUNDARY IwIB" GATE fA.LVE \1-15" GATE 11VZAL011 EXISTING ON 3 /13OX LAGOON PROPOSED OR[ W/80 ON EA GRAPHIC SCALE SOIL LEGEND 't-STUB-CUT FOR 1,92" FOR INFILTRATION PO FUTURE USE LO WELL DRAINED SOL =Most Ike Ela)maod. FrIs Sand IN MT ISTING 6" LINE...... I I-h 30D tL MODERATELY WELL DRAINED SOIL SEE 5 Most Like Goldsboro Sandy Loom . . . ......SP-4 LAGOON%PROPOSED POORLY TO MODERATELY WELL DRAINED SOIL EMUEARLGIZEANCY Mast Llkt WoQ&qn myFlno Sand DON " E ASIN PPROPOSED16" P k FORCE MAIN FORCE MAN rl-10" GATE V W C P North Topsail WWTP Expansion PROPOSED LEVEL OND 4• POND 2 D.E.N.R. Site Map SPREADER (TYR.) 4- North Topsail Lhilities, Inc. 1 1095 Highway 210 Sneads Ferry, NC 28460 POND I 1 7. 2-19" DIP SEWER LINES - PROPIOSED LEVEL S P'R�AQe tt DESIGNED BY: HHS 90 BENDS xi (TC BE FIELD LCCATFO. RY DRAWN BY: Ss DENR-1 • ENMNEfR) .1 . . I i CHECKED BY: HHE 19'. x12',th" TEE '.SEE SHEET OET-I% APPROVED BY: RGS 11- 1 2" GATEVALVE DATE- 13 June 2007 1-STUB-OUT FOR SCALE 300' Arch D SiZ. Sheet FUTURE uSE -7 PROPOSED LEVEL SPRE 'AD (70 BE FE1-O LOCATED aY SHEET D11-1 .iEE v T4l jb7 Robert G. Burgin, Jr., Inc. PO BOX 1804 IRMO, SC 29003 A (803)? '81.2965 ' S I I � e srsr a I I ar ��xsr e a er•rr a eaip. � encs c �.�.� ^._.— _.._._ � "--•�_wm _ x s)_srr a en_az — — — I ......_ ....., I I t emmw o— 0 EXISTING SPRAYFILED AREA _ UA1f fL j0.Pl• /. / POND 1 1-`�^_ - �-_�,�•- . _,. .,_ f � 1s.sz x�:•"�' aunt __ / SPACE- SET ASIDE AS r REQUESTED BY DENR f I X. EXISTING\ LAGOON 1\ ry I r EXI 11NC� rg . ��•• LA A. I ISTING LAGOON 3 ` \ \\ .. U' / } Y`•e. _( GRAPHIC SCALE xqm 49 f�- ..,._r•'_'"— INGO PROPOSEpf• ll i _r i r 3AREAS IvDT ACC6I TABLE 1'OR GREEN SPACE -$'s%g--. I .e +;'� F 4.•5 41.82 AC. — 0E571NG WETLANDS511hitN PROPERTY }} "+ � � i` t L�11.e1 AC. — E7([SIiNG POW AREAS ONO 4 POND 2 j(J /� �. , / ! r... .•-r t a t..-;:. f ! 7 �' bs ,i" 0 �•'I 11,64 AC. — DMKG LAMM AREAS I s�`.. 1..a �Y).. (( {14.�. w s}p .5 ...-""' � r� �.r.,r.✓_ I •� isi err w F\ t « $ s s, !� ��' ,-•�4 II S S� TC� ! Q3 At — EXSTING WFRASIRUCIURE t '1 POND 3 j 207.47 At —LAND IASPc&ALED BASIN SPRAY AND PROPOSED BA51N ACAS 9i4 � M SS 1 jg 4� • y ., } S a ; — X —A�s � ✓ !f 1.32 At — PROPOSED WNW lNFRASTRVMRE � 1 , 20AD At — ROAD FRONTAGE =" \ / '"c 4}} } t ! TOTAL AREA OF SITE = 498.74 ACRES TOTAL AREAS NOT ACCEPTABLE FOR GREEN SPACE= 285.69 ACRES TOTAL GREEN SPACE AREA AVAILA3LF = 213,05 ACRES j ! GREEN SPACE LEGEND 1 213.05 At — AVAILABLE GREEN SPACE AREA l] CRI ON DgTE gY 1 R7UVrSED TOR 1W5FERNr0ENRCCMf49NIS e l G7 SITE LEGEND -- PROPERTY LINE r--- WETLANDS North Topsail W WTP Expansion Green Space Plan North Topsail Utilities, Inc. 1095 Highway 210 Sneads Ferry, NC 28460 DESIGNED EIY: I IH13 �` DRAWN BY: SS CHECKEDBY: HHB APPROVED BY: RGB DATE: 13 June 2GO7 Arch DSize Gheel SCALE: V=300' pi4S C�v a R 1 61it Robert Burgin, Inc. 1 PO 8QX 18G4 lRMO, SC 29G83 29i (803) 7812965 f .... . ..... ... .... ilk P. GRAPHIC SCALE LAGGON 4 6 % Z 131- tt % 51 % SITE LEGEND PROPERTY LINE EXISTING 5' CONTOUR LINE EXISTING f CONTOUR LINE EXnNG DIRT ROAD EXISTING MONITORING WELL EXISTING BUILDINGS WETLANDS North Topsail WWTP Expansion Existing Overall Site Plan North Topsail Utijities, Enc 1095 Highway 210 Sneads Ferry, NC 28460 SP-1 Arch 0 Size Sheet Robert G. Burgin, Jr., Inc. PC BOX 1804 IRM D, GG 29063 (803) IB1 -2966 FOR BASIN CROSS I j I i I SECTIONS J PROPOSED 10" BASIN f sYer� SEE SHEET DET-2 ? DRAIN LINES (TYP.) 1 _ -• a -srE SEE SHE✓=T 00-1 `I- -- -- CLEAN OUT T IC I -- 3 RIL D !-- SEE DETAIL ET-1 rrA� a x.I 4{y1` _ 1� ! £X!ONG 6" LINE - fl cL.Gs6 EwsnNc VA1ME SEILNNa I - uPP¢R sGellcm PROPOSED AIR RELEASE/ _ REftoUTr CwSnHG 12"'.UHE� - - VACUUM VALVE TO REWAIN IN SERML'E : SEE' OETAiL SHEET DET-1 f PROPOSED PROPOSED 12" ! 10" FORCE MAIN - #._..._ DI57RIBPIPING POND 1 - - EXISTING LAGOON 1 T1E TO EXIST. j'2•`SEWERLIAIE PROP08ED. 16'. x10•. REDUGpFI ! WITH 2-12" TAPPING SLEEVES �Ir ! EXISTIN. V \ 2-12' GATE VALVES r LAGOON 2 - PROPOSED 12" A. v(/BtlXES 11- 1 2-58" DIP SEWERL�� •� -PROPOSED 1B PIPIDISTRIULIPON - NG -LO 12" REQUCERS I " rCRCE MAIN F/ 1-15' GATE VALVE ,, a a,, � EXISTING W/BG% �`� LAGOON- r `1-16" GATE VALVE se Weys ,Cr k'1\ ( \\\ W/BDX rr ioias a, �+ _ BLLG STUB -OUT FOR PROPOSED GRADING AFTER i k �r FUTURE USE,'.°'• �t y LAGOONS ARE ABANDONED AND SLUDGE tS REMOVED f ! `4• f' g".',1` CLOSE EXISTING VALVE c� i r �tr''•� ,a `'� , .y PLUG LINE - SEE SHEET LAGOON 4 SIP-4 PROPOSED •-��.e/ L I ` EMERGENCY EQUALIZATION BASIN PROPOSED IT I y PROPOSED 16" / m My 41 FORGE MAIN .I.. FORCE MAIN / �r -10" GATE VALVE / F j tYKhp / / W/BU% To POND w i i I j r i x_ 3 d1 ? oNo aPOND 2 / ) , 1 !! PROPOSED LEVEL .^w �,- f 5PgEApER TYP.) en'10.5'P *u ur y POND 3 1 ` r,_..,�•...1- r• '2-�18" DIP EWER 1.11 JS 'n� a' / p'= 'I PROPOSED LEVEL,A7 1 1 90' DENDS TYP. t 1-18"x12"x16' TEE ex _, 2" GATE VALVE ax 'W/St-sTuU-RE EUI x ei r I i ��',� a� a �•\ � " j PRo>'osFD LFVFI_ sFREADe r (TO BE FI Ei-D LOCATED IV 3� y t I 4r 1 ENGINES EE SHEET DEI--1 (TO 191� FIE1D_LOCAIED1�Y / t \ ? ENgNE€R) 1 SEE SE{F�ET DET-T\ 1 f j I i I GRAPHIC SCALE am ees ezo It h. wo ft SITE LEGEND PROPERTY LINE - - ... ....... EXISTING 5' CONTOUR LINE .... E)3STING 1' CONTOUR LINE EXISTING DIRT ROAD E70SFNG BUILDINGS I J WETLANDS �G PROPOSED S' CONTOUR LINE r1 PROPOSED t' CONTOUR LINE PROPOSED DIRT ROAD PROPOSED STRUCTURES ------------------ EQUIPMENT SETBACX TINE — — — — -- -- PROPOSED IT DRAIN LINES PRDPOSED lCr/16' FORCE MAIN — — ---• -- PROPOSED 12' DISTR3BUTION PIPING PROPOSED BASIN WATER ELEv. UN ....... -.-__ PROPOSED 9ASFN DAM LINES North Topsail W WTP .Expansion Proposed Overall Site Plan North Topsail Utilities, Inc 1095 Highway 210 Sneads Ferry, NC 28460 DRAWN BY: 58 SP-2 CHECKEDI3Y: HHB APPROVED BY: RGB DATE: 13 June 2007 aces e T -inn' Arch D Size Sheet Sz Robert G. Burgin, Jr., Inc. PO BOX 1804 IRMO, SC 29003 (803) 791-2966 1 l I ! I FOR BASIN CROSS 1 I I I I I I SECTIONS PROPOSED 10" BASIN j X 4s's7" SEE SHEET DET-2 I DRAIN LINES (TYP.) I I I r s 3s,'Sy, SEE SHEET DET-1 891.11' N &550'3' E 341� .. -.—"..�-r:.;� CLEAN OUTf SEE DETAIL F ET-1 BASIN 1A I PRCPCSED 16' DISCHARGE PIPE �- fl WATER EL 34.1 SEE DETAIL SHEET DET-1 -�'- DAM EL 36.2 _ F BOTTOM El 24.1 TEMPORARY CONSTRUCTION \' 8g' m CRAPFIIC SCALE 1pO FENCIN-, PROPOSED 12' WATER LEVEL. 4NaGATOR,PIPE t a Y ) J( SEE DETAIL SHEET YiET-1 - = ` - \ t t-h - Opp n 1C HAS _ WATER EL 33.6 DAM EL 36.2 (7I OTTCM EL n ENTR2-ANC£ BE USED FOR - I o n ❑ , w _JNFiLTR�T#ON nsw CONSTRUCTION 1 CUT AND PLUG 1 — r f CLOSEEXISTING EXISTING S" LINE , j1 VALVE SERVING - PROPOSED AIRS RELEASE/ _ _ _ .. _ ,' N �' VACUUM VALVE l �i 1 UPPER SECTION . ' (R � I SEE DETAIL SHEET DET-1 � .. t .RERCQTE EXISTING 12" UNE TO REMAIN IN SERVICE - •� _._ PROPOSED sa't's f 10" FORCE MAIN -' t \ • \ ��2�'a., PROPOSED 12°� DISTRIBUTION Fs PIPING POND 1 r t i ` ti p S e225': 21o.rs 1 4. n j-.....• EXISTING i LAGOON 1 �._ PROPOSED, 16'x10 .% REDS CER WA EXISTING f!o } LAGOON 2 . PROPOSED 12 /._.2-15" DIP SEWER LINE-9 DISTRIBUTJON PROPOSED 16' _ r PIPING A ` 1 17ORCE MAIN = N TI' EXISTING �h 0.3 7g'S7. 1�a 78�7 �—._,. LAGOON 3 PRGPOSED ORME PLATES 5 82 }4 9p.447 W r�r., - . ON EACH LEG 1 FOR INPIL l�fiATION PONDS r 5 N 9�57.7@. ` �.` 2.97- I'M EXISTING SPRAYFIEiA T'� j '} " ,. ^ �% •3 SEE SHEET DET-.T 8=W \�- /,-..F�D GRA©ING AFTER 1 "1, LAGOONS ARE ABANDONED I AND SLUDGE 15 REMOVED ' I ` - : ••1~ A6' $2'pp 9" W •t� y 2t 267.50' S ���� X,F CLOSE EXISTING VAL PLUG LINES .i B S I ., - EXISTING LAGOON 4 7SPE SHEET r a�a, PROPOSED J i r k �/ /- ry�9 y EMERGENCY ro r i e ,7962s1 v7:3�7 ss�J*.• EQUALIZATION / ' s75�"� is r h�, BASIN i rxAT v�1 1�1„• EV DESCM MON 1pA gy ELT CXANG s C R MM 8 4 p� 5 SITE LEGEND - - PROPERTY UNE EXISTING 5' CONTOUR LINE - " EXISTING 1' CONTOUR UNE EXISTING DIRT ROAD EXISTING BUILDINGS WETLANDS PROPOSED 5' CONTOUR UNE Ip PROPOSED 1' CONTOUR LINE PROPOSED DIRT ROAD PROPOSED STRUCTURES - - - - - - - - - - - EOLIMMENT SETBACK LINE — — — — — PROPOSED IV DRAIN ONES PROPOSED 10-/16- FORCE MAIN PROPOSED IV DISTRIBUTION PIPING PROPOSED BASIN WATER ELEV. UN PROPOSED BASIN DAM LINES North Topsail W VVTP Expansion Proposed Basins Area North Topsail TJtilities, Inc. 1095 Highway 210 Sneads Ferry, NC 28460 DESIGNED BY: HHB [1�_ n �] 3 DRAWN BY: S3 CHECKED BY: HMO APPROVED BY: RGB DATE: 13 June 7007 Arch D 5¢e Sheet SCALE: V 200' �51, CAd�p� }rrr! 8jT4�47 V Robert G. Burgin, .fr_, Int . 1 p0 80X 804 IRM O, SC 25063 (803) 781-2965 / 2" PL PIPING F'CS 9 BLOWER CDOUNG PROSEr SHEETS EG BLOWER BE SEE EETS WITH PRERFIK Pa / FU 'IRE SLUCGE PROCESS SLOG NET PREFIX SHEETS ET PREFIX SH I 21 0 _ PROPOSED SLUDGE HOLDING TMKS SSE SHEETS AI PREFIX SLH N PROPOSED SECONDARY ANOXIC TANKS PROPOSED T2" OISTRIEUAON PiRIG SEE SHEETS WI PREFIX PA PROPOSED PHASED AERATION TANKS SEE SHEETS NI PREFIX PA 22 PRCPOSED ANAEROEIG SELECTOR @ DEGASSING TANKS \ SEE SHEETS KITH PREFIX EEL I: PROPOSED ELECTRhLAL - ......... ... -.-.. ... _ - PROPOSED BLOTH EIDO. &AG. � ' ���� �' SEE SHEETS W1TI1 PF+EHx PA 10' WINE STEPS - ' I ..... _ .. }., TOP OF PROPOSED RETAINING WALL A' ELEV. 32.0 2Pj CONCRETE SLAE A' ELEV 31.5- 1 ` PROP D RErAwwc WALL ! - aI 26 25 TH HANDRAIL ... I I DRAIN LINES .. ...._-_. - ..,.... ...__. SHEET TPSP-} .--.. _..` � ••_ '• �.. / ]'PYC 0 HEABWORKS �+/•'` PROPOSED UV E1BC. PROPOSED 20- DI A0A0 SEE SHEET Wrl PROPOSED MEMBRANE TANKS 27— .3Q SEE SHEETS W TH PREFIX Has 1 .,..� Y PROPOSEO ..'H E PLATES DN EACH LEG L PER INFILTRATION PONDS S 292" TOR EXISTING SPRAVIEELD HE DE see SHEET CET-1 PROPOSED HEADW'ORKS SEE SHEETS NTH PREFix HW PROPOSED CONCRETE DUMPSXER PAD AT ELEV 2m SEE HEACWORK5 SHEET "I PREFIX HW FOR `OONCRETE SLAB ELEYAHONS 1R TOP OF PROPOSED RETAINING WALL AT ELEV 22 B CONCRETE SLAG AT 22.8 / TOP OF PROP SF9 RETAINMYG WALL SLOPED FROM ELEV, 24.8 TD ELEV. 22.8 AI�-��- ��I � PROPOSED PUMP STATION ""'R l •TSEE SHEETS W.TH PREFIX HW TOP OF PROPCSM RETAINING WALL AT ELLY. 24.E A CONCRETE SLAB AT ELEV. 22-6 s R PSTINaSED 30- PIP[ TO EXISTING LAGOON 4 4 CONCRETE LAGOON STRUCTURE- , PROPOSED EMERGENCY EQUALIZATION SEE SHEEI DET-2 'I BASIN GRAPHIC SCALE 6. eo w, ( Tx rzrr L L—b - DD EL PROPOSED ENR FEED F`W, SrATICN/ ' SEE SHEETS WITH PRErIX RNR .4 ' PROPOSED EQUALIZER TANKS SET SHEETS WTH, PREFIX ED --�PROPCSED 18 DIP SEWER LINES :1 SEE SHEFT SP"2 FOR CONTINUATION OF 13' DIP SEINER LINES PROPOSED ,0- FORCE MAIN 1-TO- GATE VALVE (TYP. AT EACH POND) SEE SHEET CE7-1 POND 3 0 16" FORCE MAIN POND 4 REV DESCRIPTION DAB BY NR ADnPD PIPE FROM RFEED PNMP STA. TO EX[57ING 1 LAGOON 4 PER NC DEN0. LOMMEN'I'S B 14 G] ES SITE LEGEND ' ---- EXISTING 5' CONTOUR UNE EXISTING V CONTOUR LINE EXISTING D#RT ROAD EXISTING BUILDINGS WETLANI)S 20 PROPOSED 5' CONTOUR UNE 1Z PROPOSED 1' CONTOUR UNE PROPOSED DIRT ROAD PROPOSED STRUCTURES PROPOSED t0"/16" FORCE MAIN - -� — --- PROPOSED 12" DISTRiB11TION PIPING x�y°1O PROPOSED SPOT ELEVATION North Topsail WWTP Expansion Proposed W W TP Site Plan North Topsail Utilities, Inc. 3095 Highway 210 SnPads Ferry, NC 2R460 DESFGNEDBY: HHE ��_� DRAWN BY: SS CHECKED BY: HHB APPROVEDBY: RGB DATE: 13 June 2007 Arch D Size Shoat SCALE: V, m 50' u F4 a I d e . Sy14�b7w Robert Burgin, In 1 23c. PC BOX e04 1RM0, SC 29063 �x (803) 781-296$ FOR BASIN CROSS SECTIONS PROPOSED 10- BASIN SEE SHEET DET-2 DRAIN LINES (TYR SEE SHEET T, N CR CLEAN OUIT (3 IC 1- R4 §EE. DETAIL ET -I TUA SITE LEGEND PROPERTY LINE EXISTING 5' CONTOUR LNE .SE USED PCBCONTOUR LINE'LAIE�JRATI C. SASNL cv EXISTING DIRT ROAD V EXISTING BUILDINGS WETLANDS PR kil 4 v —20— PROPOSED 5' CONTOUR LINE. .......... SE POW PROPOSED 1CONTOUR LINE 7, PROPOSED DIRT ROAD PROPOSED STRUCTURES y. - - - - - - - - - - - - EQUIPMENT SET13ACK LINE — — — — — — PROPOSED 10" DRXN LINES Q EXISTING PROPOSED 10*/16" FORCE MAIN L ON PROPOSED 12" DISTRIBUTION PIPING AIL". GRADING E ABANDONED PROPOSED BASIN WATER ELEV. LINE T TO EXIST. REM WTA 2-12" TAPPING SLEEVE & EXISTIN VALVES LAGOON 2 PROPOSED BASIN DAM LINES 2-12" GATE VALVES --IqIBOXES IRDPO'.LU 11 —CB— COMPLIANCE BOUNDARY REDUCERS RD-----Ro— REkAEW BOUNDARY IwIB" GATE fA.LVE \1-15" GATE 11VZAL011 EXISTING ON 3 /13OX LAGOON PROPOSED OR[ W/80 ON EA GRAPHIC SCALE SOIL LEGEND 't-STUB-CUT FOR 1,92" FOR INFILTRATION PO FUTURE USE LO WELL DRAINED SOL =Most Ike Ela)maod. FrIs Sand IN MT ISTING 6" LINE...... I I-h 30D tL MODERATELY WELL DRAINED SOIL SEE 5 Most Like Goldsboro Sandy Loom . . . ......SP-4 LAGOON%PROPOSED POORLY TO MODERATELY WELL DRAINED SOIL EMUEARLGIZEANCY Mast Llkt WoQ&qn myFlno Sand DON " E ASIN PPROPOSED16" P k FORCE MAIN FORCE MAN rl-10" GATE V W C P North Topsail WWTP Expansion PROPOSED LEVEL OND 4• POND 2 D.E.N.R. Site Map SPREADER (TYR.) 4- North Topsail Lhilities, Inc. 1 1095 Highway 210 Sneads Ferry, NC 28460 POND I 1 7. 2-19" DIP SEWER LINES - PROPIOSED LEVEL S P'R�AQe tt DESIGNED BY: HHS 90 BENDS xi (TC BE FIELD LCCATFO. RY DRAWN BY: Ss DENR-1 • ENMNEfR) .1 . . I i CHECKED BY: HHE 19'. x12',th" TEE '.SEE SHEET OET-I% APPROVED BY: RGS 11- 1 2" GATEVALVE DATE- 13 June 2007 1-STUB-OUT FOR SCALE 300' Arch D SiZ. Sheet FUTURE uSE -7 PROPOSED LEVEL SPRE 'AD (70 BE FE1-O LOCATED aY SHEET D11-1 .iEE v T4l jb7 Robert G. Burgin, Jr., Inc. PO BOX 1804 IRMO, SC 29003 A (803)? '81.2965 ' S I I � e srsr a I I ar ��xsr e a er•rr a eaip. � encs c �.�.� ^._.— _.._._ � "--•�_wm _ x s)_srr a en_az — — — I ......_ ....., I I t emmw o— 0 EXISTING SPRAYFILED AREA _ UA1f fL j0.Pl• /. / POND 1 1-`�^_ - �-_�,�•- . _,. .,_ f � 1s.sz x�:•"�' aunt __ / SPACE- SET ASIDE AS r REQUESTED BY DENR f I X. EXISTING\ LAGOON 1\ ry I r EXI 11NC� rg . ��•• LA A. I ISTING LAGOON 3 ` \ \\ .. U' / } Y`•e. _( GRAPHIC SCALE xqm 49 f�- ..,._r•'_'"— INGO PROPOSEpf• ll i _r i r 3AREAS IvDT ACC6I TABLE 1'OR GREEN SPACE -$'s%g--. I .e +;'� F 4.•5 41.82 AC. — 0E571NG WETLANDS511hitN PROPERTY }} "+ � � i` t L�11.e1 AC. — E7([SIiNG POW AREAS ONO 4 POND 2 j(J /� �. , / ! r... .•-r t a t..-;:. f ! 7 �' bs ,i" 0 �•'I 11,64 AC. — DMKG LAMM AREAS I s�`.. 1..a �Y).. (( {14.�. w s}p .5 ...-""' � r� �.r.,r.✓_ I •� isi err w F\ t « $ s s, !� ��' ,-•�4 II S S� TC� ! Q3 At — EXSTING WFRASIRUCIURE t '1 POND 3 j 207.47 At —LAND IASPc&ALED BASIN SPRAY AND PROPOSED BA51N ACAS 9i4 � M SS 1 jg 4� • y ., } S a ; — X —A�s � ✓ !f 1.32 At — PROPOSED WNW lNFRASTRVMRE � 1 , 20AD At — ROAD FRONTAGE =" \ / '"c 4}} } t ! TOTAL AREA OF SITE = 498.74 ACRES TOTAL AREAS NOT ACCEPTABLE FOR GREEN SPACE= 285.69 ACRES TOTAL GREEN SPACE AREA AVAILA3LF = 213,05 ACRES j ! GREEN SPACE LEGEND 1 213.05 At — AVAILABLE GREEN SPACE AREA l] CRI ON DgTE gY 1 R7UVrSED TOR 1W5FERNr0ENRCCMf49NIS e l G7 SITE LEGEND -- PROPERTY LINE r--- WETLANDS North Topsail W WTP Expansion Green Space Plan North Topsail Utilities, Inc. 1095 Highway 210 Sneads Ferry, NC 28460 DESIGNED EIY: I IH13 �` DRAWN BY: SS CHECKEDBY: HHB APPROVED BY: RGB DATE: 13 June 2GO7 Arch DSize Gheel SCALE: V=300' pi4S C�v a R 1 61it Robert Burgin, Inc. 1 PO 8QX 18G4 lRMO, SC 29G83 29i (803) 7812965 f .... . ..... ... .... ilk P. GRAPHIC SCALE LAGGON 4 6 % Z 131- tt % 51 % SITE LEGEND PROPERTY LINE EXISTING 5' CONTOUR LINE EXISTING f CONTOUR LINE EXnNG DIRT ROAD EXISTING MONITORING WELL EXISTING BUILDINGS WETLANDS North Topsail WWTP Expansion Existing Overall Site Plan North Topsail Utijities, Enc 1095 Highway 210 Sneads Ferry, NC 28460 SP-1 Arch 0 Size Sheet Robert G. Burgin, Jr., Inc. PC BOX 1804 IRM D, GG 29063 (803) IB1 -2966 FOR BASIN CROSS I j I i I SECTIONS J PROPOSED 10" BASIN f sYer� SEE SHEET DET-2 ? DRAIN LINES (TYP.) 1 _ -• a -srE SEE SHE✓=T 00-1 `I- -- -- CLEAN OUT T IC I -- 3 RIL D !-- SEE DETAIL ET-1 rrA� a x.I 4{y1` _ 1� ! £X!ONG 6" LINE - fl cL.Gs6 EwsnNc VA1ME SEILNNa I - uPP¢R sGellcm PROPOSED AIR RELEASE/ _ REftoUTr CwSnHG 12"'.UHE� - - VACUUM VALVE TO REWAIN IN SERML'E : SEE' OETAiL SHEET DET-1 f PROPOSED PROPOSED 12" ! 10" FORCE MAIN - #._..._ DI57RIBPIPING POND 1 - - EXISTING LAGOON 1 T1E TO EXIST. j'2•`SEWERLIAIE PROP08ED. 16'. x10•. REDUGpFI ! WITH 2-12" TAPPING SLEEVES �Ir ! EXISTIN. V \ 2-12' GATE VALVES r LAGOON 2 - PROPOSED 12" A. v(/BtlXES 11- 1 2-58" DIP SEWERL�� •� -PROPOSED 1B PIPIDISTRIULIPON - NG -LO 12" REQUCERS I " rCRCE MAIN F/ 1-15' GATE VALVE ,, a a,, � EXISTING W/BG% �`� LAGOON- r `1-16" GATE VALVE se Weys ,Cr k'1\ ( \\\ W/BDX rr ioias a, �+ _ BLLG STUB -OUT FOR PROPOSED GRADING AFTER i k �r FUTURE USE,'.°'• �t y LAGOONS ARE ABANDONED AND SLUDGE tS REMOVED f ! `4• f' g".',1` CLOSE EXISTING VALVE c� i r �tr''•� ,a `'� , .y PLUG LINE - SEE SHEET LAGOON 4 SIP-4 PROPOSED •-��.e/ L I ` EMERGENCY EQUALIZATION BASIN PROPOSED IT I y PROPOSED 16" / m My 41 FORGE MAIN .I.. FORCE MAIN / �r -10" GATE VALVE / F j tYKhp / / W/BU% To POND w i i I j r i x_ 3 d1 ? oNo aPOND 2 / ) , 1 !! PROPOSED LEVEL .^w �,- f 5PgEApER TYP.) en'10.5'P *u ur y POND 3 1 ` r,_..,�•...1- r• '2-�18" DIP EWER 1.11 JS 'n� a' / p'= 'I PROPOSED LEVEL,A7 1 1 90' DENDS TYP. t 1-18"x12"x16' TEE ex _, 2" GATE VALVE ax 'W/St-sTuU-RE EUI x ei r I i ��',� a� a �•\ � " j PRo>'osFD LFVFI_ sFREADe r (TO BE FI Ei-D LOCATED IV 3� y t I 4r 1 ENGINES EE SHEET DEI--1 (TO 191� FIE1D_LOCAIED1�Y / t \ ? ENgNE€R) 1 SEE SE{F�ET DET-T\ 1 f j I i I GRAPHIC SCALE am ees ezo It h. wo ft SITE LEGEND PROPERTY LINE - - ... ....... EXISTING 5' CONTOUR LINE .... E)3STING 1' CONTOUR LINE EXISTING DIRT ROAD E70SFNG BUILDINGS I J WETLANDS �G PROPOSED S' CONTOUR LINE r1 PROPOSED t' CONTOUR LINE PROPOSED DIRT ROAD PROPOSED STRUCTURES ------------------ EQUIPMENT SETBACX TINE — — — — -- -- PROPOSED IT DRAIN LINES PRDPOSED lCr/16' FORCE MAIN — — ---• -- PROPOSED 12' DISTR3BUTION PIPING PROPOSED BASIN WATER ELEv. UN ....... -.-__ PROPOSED 9ASFN DAM LINES North Topsail W WTP .Expansion Proposed Overall Site Plan North Topsail Utilities, Inc 1095 Highway 210 Sneads Ferry, NC 28460 DRAWN BY: 58 SP-2 CHECKEDI3Y: HHB APPROVED BY: RGB DATE: 13 June 2007 aces e T -inn' Arch D Size Sheet Sz Robert G. Burgin, Jr., Inc. PO BOX 1804 IRMO, SC 29003 (803) 791-2966 1 l I ! I FOR BASIN CROSS 1 I I I I I I SECTIONS PROPOSED 10" BASIN j X 4s's7" SEE SHEET DET-2 I DRAIN LINES (TYP.) I I I r s 3s,'Sy, SEE SHEET DET-1 891.11' N &550'3' E 341� .. -.—"..�-r:.;� CLEAN OUTf SEE DETAIL F ET-1 BASIN 1A I PRCPCSED 16' DISCHARGE PIPE �- fl WATER EL 34.1 SEE DETAIL SHEET DET-1 -�'- DAM EL 36.2 _ F BOTTOM El 24.1 TEMPORARY CONSTRUCTION \' 8g' m CRAPFIIC SCALE 1pO FENCIN-, PROPOSED 12' WATER LEVEL. 4NaGATOR,PIPE t a Y ) J( SEE DETAIL SHEET YiET-1 - = ` - \ t t-h - Opp n 1C HAS _ WATER EL 33.6 DAM EL 36.2 (7I OTTCM EL n ENTR2-ANC£ BE USED FOR - I o n ❑ , w _JNFiLTR�T#ON nsw CONSTRUCTION 1 CUT AND PLUG 1 — r f CLOSEEXISTING EXISTING S" LINE , j1 VALVE SERVING - PROPOSED AIRS RELEASE/ _ _ _ .. _ ,' N �' VACUUM VALVE l �i 1 UPPER SECTION . ' (R � I SEE DETAIL SHEET DET-1 � .. t .RERCQTE EXISTING 12" UNE TO REMAIN IN SERVICE - •� _._ PROPOSED sa't's f 10" FORCE MAIN -' t \ • \ ��2�'a., PROPOSED 12°� DISTRIBUTION Fs PIPING POND 1 r t i ` ti p S e225': 21o.rs 1 4. n j-.....• EXISTING i LAGOON 1 �._ PROPOSED, 16'x10 .% REDS CER WA EXISTING f!o } LAGOON 2 . PROPOSED 12 /._.2-15" DIP SEWER LINE-9 DISTRIBUTJON PROPOSED 16' _ r PIPING A ` 1 17ORCE MAIN = N TI' EXISTING �h 0.3 7g'S7. 1�a 78�7 �—._,. LAGOON 3 PRGPOSED ORME PLATES 5 82 }4 9p.447 W r�r., - . ON EACH LEG 1 FOR INPIL l�fiATION PONDS r 5 N 9�57.7@. ` �.` 2.97- I'M EXISTING SPRAYFIEiA T'� j '} " ,. ^ �% •3 SEE SHEET DET-.T 8=W \�- /,-..F�D GRA©ING AFTER 1 "1, LAGOONS ARE ABANDONED I AND SLUDGE 15 REMOVED ' I ` - : ••1~ A6' $2'pp 9" W •t� y 2t 267.50' S ���� X,F CLOSE EXISTING VAL PLUG LINES .i B S I ., - EXISTING LAGOON 4 7SPE SHEET r a�a, PROPOSED J i r k �/ /- ry�9 y EMERGENCY ro r i e ,7962s1 v7:3�7 ss�J*.• EQUALIZATION / ' s75�"� is r h�, BASIN i rxAT v�1 1�1„• EV DESCM MON 1pA gy ELT CXANG s C R MM 8 4 p� 5 SITE LEGEND - - PROPERTY UNE EXISTING 5' CONTOUR LINE - " EXISTING 1' CONTOUR UNE EXISTING DIRT ROAD EXISTING BUILDINGS WETLANDS PROPOSED 5' CONTOUR UNE Ip PROPOSED 1' CONTOUR LINE PROPOSED DIRT ROAD PROPOSED STRUCTURES - - - - - - - - - - - EOLIMMENT SETBACK LINE — — — — — PROPOSED IV DRAIN ONES PROPOSED 10-/16- FORCE MAIN PROPOSED IV DISTRIBUTION PIPING PROPOSED BASIN WATER ELEV. UN PROPOSED BASIN DAM LINES North Topsail W VVTP Expansion Proposed Basins Area North Topsail TJtilities, Inc. 1095 Highway 210 Sneads Ferry, NC 28460 DESIGNED BY: HHB [1�_ n �] 3 DRAWN BY: S3 CHECKED BY: HMO APPROVED BY: RGB DATE: 13 June 7007 Arch D 5¢e Sheet SCALE: V 200' �51, CAd�p� }rrr! 8jT4�47 V Robert G. Burgin, .fr_, Int . 1 p0 80X 804 IRM O, SC 25063 (803) 781-2965 / 2" PL PIPING F'CS 9 BLOWER CDOUNG PROSEr SHEETS EG BLOWER BE SEE EETS WITH PRERFIK Pa / FU 'IRE SLUCGE PROCESS SLOG NET PREFIX SHEETS ET PREFIX SH I 21 0 _ PROPOSED SLUDGE HOLDING TMKS SSE SHEETS AI PREFIX SLH N PROPOSED SECONDARY ANOXIC TANKS PROPOSED T2" OISTRIEUAON PiRIG SEE SHEETS WI PREFIX PA PROPOSED PHASED AERATION TANKS SEE SHEETS NI PREFIX PA 22 PRCPOSED ANAEROEIG SELECTOR @ DEGASSING TANKS \ SEE SHEETS KITH PREFIX EEL I: PROPOSED ELECTRhLAL - ......... ... -.-.. ... _ - PROPOSED BLOTH EIDO. &AG. � ' ���� �' SEE SHEETS W1TI1 PF+EHx PA 10' WINE STEPS - ' I ..... _ .. }., TOP OF PROPOSED RETAINING WALL A' ELEV. 32.0 2Pj CONCRETE SLAE A' ELEV 31.5- 1 ` PROP D RErAwwc WALL ! - aI 26 25 TH HANDRAIL ... I I DRAIN LINES .. ...._-_. - ..,.... ...__. SHEET TPSP-} .--.. _..` � ••_ '• �.. / ]'PYC 0 HEABWORKS �+/•'` PROPOSED UV E1BC. PROPOSED 20- DI A0A0 SEE SHEET Wrl PROPOSED MEMBRANE TANKS 27— .3Q SEE SHEETS W TH PREFIX Has 1 .,..� Y PROPOSEO ..'H E PLATES DN EACH LEG L PER INFILTRATION PONDS S 292" TOR EXISTING SPRAVIEELD HE DE see SHEET CET-1 PROPOSED HEADW'ORKS SEE SHEETS NTH PREFix HW PROPOSED CONCRETE DUMPSXER PAD AT ELEV 2m SEE HEACWORK5 SHEET "I PREFIX HW FOR `OONCRETE SLAB ELEYAHONS 1R TOP OF PROPOSED RETAINING WALL AT ELEV 22 B CONCRETE SLAG AT 22.8 / TOP OF PROP SF9 RETAINMYG WALL SLOPED FROM ELEV, 24.8 TD ELEV. 22.8 AI�-��- ��I � PROPOSED PUMP STATION ""'R l •TSEE SHEETS W.TH PREFIX HW TOP OF PROPCSM RETAINING WALL AT ELLY. 24.E A CONCRETE SLAB AT ELEV. 22-6 s R PSTINaSED 30- PIP[ TO EXISTING LAGOON 4 4 CONCRETE LAGOON STRUCTURE- , PROPOSED EMERGENCY EQUALIZATION SEE SHEEI DET-2 'I BASIN GRAPHIC SCALE 6. eo w, ( Tx rzrr L L—b - DD EL PROPOSED ENR FEED F`W, SrATICN/ ' SEE SHEETS WITH PRErIX RNR .4 ' PROPOSED EQUALIZER TANKS SET SHEETS WTH, PREFIX ED --�PROPCSED 18 DIP SEWER LINES :1 SEE SHEFT SP"2 FOR CONTINUATION OF 13' DIP SEINER LINES PROPOSED ,0- FORCE MAIN 1-TO- GATE VALVE (TYP. AT EACH POND) SEE SHEET CE7-1 POND 3 0 16" FORCE MAIN POND 4 REV DESCRIPTION DAB BY NR ADnPD PIPE FROM RFEED PNMP STA. TO EX[57ING 1 LAGOON 4 PER NC DEN0. LOMMEN'I'S B 14 G] ES SITE LEGEND ' ---- EXISTING 5' CONTOUR UNE EXISTING V CONTOUR LINE EXISTING D#RT ROAD EXISTING BUILDINGS WETLANI)S 20 PROPOSED 5' CONTOUR UNE 1Z PROPOSED 1' CONTOUR UNE PROPOSED DIRT ROAD PROPOSED STRUCTURES PROPOSED t0"/16" FORCE MAIN - -� — --- PROPOSED 12" DISTRiB11TION PIPING x�y°1O PROPOSED SPOT ELEVATION North Topsail WWTP Expansion Proposed W W TP Site Plan North Topsail Utilities, Inc. 3095 Highway 210 SnPads Ferry, NC 2R460 DESFGNEDBY: HHE ��_� DRAWN BY: SS CHECKED BY: HHB APPROVEDBY: RGB DATE: 13 June 2007 Arch D Size Shoat SCALE: V, m 50' u F4 a I d e . Sy14�b7w Robert Burgin, In 1 23c. PC BOX e04 1RM0, SC 29063 �x (803) 781-296$