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HomeMy WebLinkAboutNC0036935_Authorization to Construct_20030924Michael F. Easley, Governor State of North Carolina William G. Ross, Jr., Secretary Department of Environment and Natural Resources Alan W. Klimek, P.E., Director Division of Water Quality September 24, 2003 Ms. Beverly Schwing Pine Mountain Property Owners Assoc. 8456 Ward's Gap Road Connelly Springs, North Carolina 28612 Subject: Authorization to Construct Permit ATC Number 036935AO1 Pine Mountain WWTP NPDES Permit NCO036935 Burke County Dear Ms. Schwing: A request for an Authorization to Construct (ATC) was received by the Division and final plans and specifications for this project have been reviewed and found to be satisfactory. Authorization is hereby granted for the operation of a 20,000 gallon per day package treatment unit consisting of the following: • An influent screening and flow control box; • A 7,750 gallon flow equalization tank; • A 21,390 gallon aeration tank; • Dual hoppered clarifiers with a total volume of 4,400 gallon; • A 1,790 gallon sludge holding tank; • A 650 gallon chlorine contact tank; and • All necessary piping, pumps, and appurtenances. This Authorization to Construct is issued in accordance with NPDES Permit No. NCO036935 issued October 25, 2000, and shall be subject to revocation unless the wastewater treatment facilities are operated in accordance with the conditions and limitations specified in the permit. Please note that an Authorization to Construct permit must be issued by the Division prior to any future construction. The sludge generated from these treatment facilities must be disposed of in accordance with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement wastewater treatment or disposal facilities. Upon classification of the facility by the Certification Commission, the Permittee shall employ a certified water pollution control treatment system operator to be in responsible charge (ORC) of the water pollution control treatment system. The operator must hold a certificate of the type and grade at least equivalent to or greater than the classification assigned to the water pollution control treatment system by the Certification Commission. The Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of Title 15A, Chapter 8G, .0202. The ORC of the facility must visit each Class I facility at least weekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays, and must properly manage and document daily operation and 1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE 919-733-SO83/FAX 919-733-0719 VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES Permit No. NC0036935 Page 2 September 24, 2003 maintenance of the facility and must comply with all other conditions outlined in Title 15A, Chapter 8G, .0204. Once the facility is classified, the Permittee must submit a letter to the Certification Commission which designates the operator in responsible charge within: (A) Sixty calendar days prior to wastewater being introduced into a new system or (B) within 120 calendar days of the following, (i) after receiving notification of a change in the classification of the system requiring the designation of a new ORC and back-up ORC or (it) a vacancy in the position of ORC or back-up ORC. A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of the facility. The Operational Agreement between the Permittee and the Environmental Management Commission is incorporated herein by reference and is a condition of this Permit. Noncompliance with the terms of the Operational Agreement shall subject the Permittee to all sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with the terms and conditions of this Permit. Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee to an enforcement action by the Division of Water Quality in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. The issuance of this Authorization to Construct does not preclude 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) which have jurisdiction. One (1) set of approved plans and specifications is being forwarded to you. If you have any questions or need additional information, please contact Mr. Mark McIntire, telephone number (919) 733-5083, extension 508. Sincerely, W. Klimek, P.E. cc: Central Files NPDES Unit, Permit File Asheville Regional Office, Water Quality Technical Assistance and Certification Mr. John W. Harris, P.E., 7909 Ocoee Court, Raleigh, NC 27612 Package Style Wastewater Treatment Systems Project Name: Package Wastewater Treatment System Pine Mountain Pine Mountain, N.C. Design Flow 20,000 GPD Wastewater Treatment Facilites Pine Mountain Project Number 2001-20PMT Phase # 1 Design Flow = 20,000 GPD @ 240 PPM BOD5 Tipton Environmental Internatioinal, Inc. 4446 State Route 132 Batavia, OH 45103 Phone 513-735-2777 Fax 513-735-1485 TEII Systems Specifications Sheet Project No. 2001-20JCS Sales Agent: McCall Brothers Design Flow 20,000 GPD Project Name: Pine Mountain, N.C. October 15, 200 ) Project Location: Pine Mountain, N.C. Wastewater Treatment System Specifications TIPTON ENVIRONMENTAL INTERNATIONAL, INC. PACKAGED BIOLOGICAL WASTEWATER TREATMENT SYSTEM EQUIPMENT SPECIFICATIONS Wastewater Treatment System Prefabricated Steel Construction 1.0 GENERAL 1.1 The contractor shall furnish and install one package biological wastewater treatment system, complete and ready for operation in accordance- with the plans and specifications stated herein. The treatment system shall be a Model TEII-200- FESHC package prefabricated steel construction as manufactured by Tipton Environmental International, Inc., Inc. The wastewater treatment system shall be known as the activated sludge type, specifically known as "Extended Aeration". The unit shall be designed for treating a total flow of 20,000 gallons per day with the influent characteristics as described in section 2.1 below. The system shall be complete with the following main equipment components: 1) Flow Equalization System 2) Secondary Treatment System 3) Sludge Treatment System 4) Chlorination Chamber 1.2 The package system shall be factory prefabricated and assembled, so far as possible, taking into consideration shipping and erection limitations. In addition all internal tank piping and wiring shall be supplied and ended at the appropriate joint. All vessel surfaces shall be factory painted as described below. 1.3 The basic equipment furnished by the manufacturer shall include, but not be limited to tank vessels, painting, aeration piping, blower assemblies, clarifier, internal piping, walkways, electrical equipment and/or controls. 1.4 The wastewater treatment plant shall be the product of an equipment manufacturer actively engaged in the design and fabrication of similar equipment. The manufacturer must have provided similar equipment in service for at least five (5) years. It will be necessary that the following information be submitted to the engineer at least fourteen (14) days prior to the scheduled bid date in order to allow adequate time for review of the product. 1.5 THE GENERAL CONTRACTORS FIELD SERVICES The General Contractor shall perform the actual installation of the TEII complete wastewater treatment system. The following is a brief description of the general contractor's responsibilities regarding the installation. The following is a brief description of the General Contractor's field crews area of responsibilities: Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 2.0 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications A. Provide a crane and other equipment for off loading and setting of the wastewater treatment system which come in one major tank onto its foundation pad. Attach the anchoring facilities to be positioned in the foundation pad as defined by the contract drawings. B. Once the system has been set into position, it shall be reconnected including re -assembly of the piping, valving and wiring which may have been disconnected at the factory for shipping purposes. C. The package system shall be delivered to the project site with a majority of the component equipment installed in position. The tank sections shall be constructed in one major tank section. Due to shipping restrictions some of the ancillary equipment such as the blower motor units and the electrical control console, and gratings have been removed. The field contractor is responsible for assembling these items into their proper position. D. The field contractor shall set into its position all the electrical console, Model CP-1 and CP-2, and others. All electrical power to each of these control panel shall be furnished by the general contractor. E. All area requiring touch up painting shall be painted by the Contractors field crew. F. An adequate access road to the plant site shall be provided to enable the lowboy truck into the project site and off loaded. G. Provide facilities and equipment for off loading and setting of the wastewater treatment system onto its foundation concrete pad base, which has been provided by the field contractor. H. Once the plant has been set into position, it shall be reconnected including when required re -assembly of the piping and wiring which may have been disconnected at the factory for shipping purposes. I. All site utilities to the system shall be tied -in to the system. The electrical power requirements at the main power block or main circuit breaker shall be 230 volts, 1 phase, 60 Hz. The sub -panel to be also connected to the main power source by the field contractor. The main power disconnect switch shall be supplied by the field contractor. J. The foundation pad for setting the system on to is to be furnished by the field contractor. K. Once set into position the system to be filled with water prior to start- up and after the drain plugs have been installed. SYSTEM DESIGN PARAMETERS 2.1 Influent Characteristics The following are the influent characteristics of the specified system: A. Maximum daily flow B. Peak hourly flow rate C. 5 day BOD D. Suspended Solids 20,000 gallons per day 3 times the daily flow rate 240 PPM 240 PPM Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 ' TEII Systems Specifications Sheet Project No. 2001-20JCS Sales Agent: McCall Brothers Design Flow 20,000 GPD Project Name: Pine Mountain, N.C. October 15, 2001 Project Location: Pine Mountain, N.C. Wastewater Treatment System Specifications E. Water Temperature Range 98 to 75 degrees F F. Elevation from sea level 800 feet G. Air temperature range 100 to 15 degrees F H. pH Range 7 to 8 2.2 The system shall be capable of treating 20,000 gallons per day of crude raw domestic wastewater. Kitchen waste, such as food, greases, plastics should not be discharged into the wastewater treatment system. Those items to be disposed of directly within the kitchen facilities. 2.3 The organic strength shall be 240 PPM 5 day BQD and 240 PPM suspended solids No substances shall be placed in the system in quantities, which are not biodegradable or toxic to the biological organisms. The system shall be designed to handle the peak flow rates and controlling them so as to create an average daily flow fluctuation over a range of 50% to 100% of the design flow with the peak flow rate not to exceed 250% of the average design flow. 3.0 VESSEL TANK CONSTRUCTION 3.1 All tank vessels shall be fabricated of one-fourth inch structural grade steel plated; (ASTM A-36) joined by arc welding with fillets of adequate section for the joint involved. All walls shall be continuous and watertight and shall be supported by structural reinforcing -members where required. Fabrication and erection shall conform to the appropriate requirements of "AISC Specifications of Buildings". Connection shall conform to the requirements of the American Welding Society's Code and shall develop the full strength of the member. All tank structures will have reinforcing members as required. All other areas such as the floor, end walls, and internal bulkheads to be adequately reinforced. 3.2 All piping and valving shall be provided constructed of a minimum of schedule 40 steel pipe. The painting of this pipe and valving to be as defined in section below: 3.3 The package wastewater treatment system shall be transported to the project site on Lowboy truck in one major section. 3.4 The vessel structure has been designed with vertical and horizontal structural reinforcing. The structural reinforcement is the minimum allowed. If other structural design is used, structural design calculations shall be required with the design submittal data showing this variation and how it shall meet the project tank vessel load requirements. 4.0 PAINTING AND CORROSION CONTROL 4.1 All tank vessel surfaces to be painted shall be properly prepared in a workmanlike manner to obtain a smooth, clean, and dry surface. All rust, metal fragments, dust, weld slag, and mill scale as well as extraneous matter, shall be removed by means of SSPC sandblasting. 4.2 All interior tank vessel surfaces below the main box beam shall be painted with a Tnemec epoxy paint, or equal to a minimum total dry film thickness of 4-6 mils or equal type coating system. Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications 4.3 All exterior tank vessel surfaces including the box beam shall be painted Tnemec epoxy paint, or equal to a minimum total dry film thickness of 4-6 mils or equal type coating system. 4.4 All steel piping & valving shall be painted with Tnemec epoxy paint, or equal to a minimum total dry film thickness of 4-6 mils or equal type coating system. 5.0 FOUNDATION 5.1 A concrete foundation pad shall be constructed conforming to the project specifications for level and flatness as specified by the manufacturer on the foundation drawing. FLOW EQUALIZATION EQUIPMENT SECTION DIVISION 6 - FLOW EQUALIZATION SYSTEM 6.0 To control the peak hourly flow rates entering the wastewater treatment system a surge control system shall be provided. The surge control system shall consist of a prefab steel tank constructed in accordance with the contract drawings complete with dual surge pumps, liquid level control system, electrical controls, air blower, course air diffuser with air manifold. The following equipment shall be provided by Tipton Environmental International, Inc., Inc for the flow equalization system: (A) One Air Blower Unit (B) Four For the Surge Pump Controls Liquid Level Sensors narrow angle type (C) One For the Surge Blower Controls Liquid Level Sensors.wide angle type (D) Two Air Diffusers with drop assemblies complete with air diffusers (E) One Blower Motor Unit (F) One 7,000 gallon surge tank (G) One Flow control box with 22'/z degree v-notch weir (H) One Electrical Control Panel CP-2 6.1 Bar Screen 6.1 Bar screen shall be provided as shown on the contract drawings. Its purpose is to remove any unusually large solids from the incoming crude sewage flow rate. The bar screen shall be fabricated from one-half inch diameter bars spaced one -inch apart and arranged as shown on the drawings. The bars shall be sloped to permit easy cleaning of accumulating debris. 6.3 AIR SUPPLY FOR SURGE TANK (EQUALIZATION TANK) — BM-3 Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications 6.31 For supplying the air requirements of the Flow equalization System control system, one (1) Model BF-25-R22 Blower Motor Unit shall be provided and shall be item BM- 3 and shall be furnished and installed on a structural sound steel skid complete with main secondary blowers and control panel CP-1 at the location shown on the drawings. 6.32 The blower motor unit shall be a Model BF-25-R22 shall be furnished for supplying all the air requirements needed for the flow equalization Basin. The unit shall be capable of delivering 25 SCFM at an operating pressure of 5 psi. 6.33 The blower shall be of the positive displacement type and shall manufactured by Roots Division of Dresser Industries, Inc., Connersville, Indiana or approval equal. The Model number of the blower will be URAI-22 and equipped with a 1" discharge. 6.34 The motor shall be 2 Hp for operation on 230 volt, 3 Phase, 60 Cycle Service, and 1800 RPM. It shall be of the Open Drip -proof fan cooled type. 6.35 The blower unit shall be mounted and installed within a TEII fiberglass enclosure, skid mounted with CP-2 Pre -mounted. The blower and motor shall be enclosed with a weatherproof enclosure. The weatherproof hood shall be designed for easy access to service the blower; motor, filter, or "V" belt drive unit. It shall be equipped with a lifting handle and locking facilities. All enclosure surfaces shall be properly prepared in a neat manner to obtain a smooth, clean dry surface. The enclosure shall have an ivory finish. 6.36 The blower shall be connected to the motor by means of a "V" belt drive unit. The "V" belt drive unit shall be designed for easy adjustment. The "V" belt drive will enable speed adjustment of the blower unit in those applications where flow varies. The motor will be furnished with an adjustable motor mounting base. 6.37 The blower shall be fitted with an air inlet filter type noise silencer. For connecting to the air manifold, the blower shall be fitted with a flexible rubber hose coupling with stainless steel clamps. The blower unit shall be equipped with discharge silencers. 7.0 AERATION CHAMBER 7.1 There shall be supplied, single aeration chamber to work in conjunction with the clarifier chamber. The aeration chamber shall conform to the following specifications: 7.2 The aeration chamber shall be of sufficient capacity to provide a total volume minimum of 24 hours retention of the average daily flow, with a minimum chamber volume of 20.0004 allons. The vessel shall be so shaped on each side to prevent sludge accumulation, to enhance the rotation of the vessel contents, and to scum and froth accumulation. To insure maximum retention and eliminate short circuiting of minuscule sewage particles, the aeration chamber shall be constructed with air diffusers, placed longitudinally along one side of the chamber so as to, in conjunction with flow control baffles, enhance the spiral rotation of the chamber contents. To ensure adequate circulation velocity, the proportion of the chamber width to depth, in the direction of rotation, shall not exceed 1.33 to 1. The velocity of rotation shall be Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications sufficient to scour the bottom and prevent sludge filleting as well as to prevent the escape to the surface of minuscule air diffusion bubbles and by so causing their entrapment to provide maximum oxygenation efficiency. 7.3 An air distribution manifold shall be installed longitudinally on one side of the tank with diffuser drop assemblies connected .thereto. This manifold shall be designed to create a bank of air to supply the air needs of the system, and other ancillary equipment such as the air diffusers, airlift pumps, and scum skimmer to draw from this bank of air. 7.4 Each diffuser drop assembly shall be equipped with an air regulating and/or shutoff valve, a disconnecting union and a diffuser bar with non -clog air diffuser nozzles mounted on the tee bar. The air flow per diffuser shall range from 1 to 5 CFM. This minimum air velocity shall be maintained to insure sufficient velocity for self-cleaning. The diffusers shall be parallel to and near the base of the vessel sidewall and at an elevation, which will provide the optimum diffusion and mixing of the vessel contents. The oxygen transfer capacity of each diffuser shall be such that an adequate supply of oxygen will be maintained in the aeration chamber to meet treatment requirements of the design sewage load. The air diffuser shall be on the air check diaphragm type constructed with a diaphragm mounted on top of the diffuser body. The diffuser body consists of twenty, 3/16" diameter air discharge holes evenly distributed around the diffuser disk. The diffuser will be supplied with standard male pipe thread connections. 8.0 Clarifier Chamber 9.1 There shall be furnished a hopper clarifier chamber to work in conjunction with the aeration chamber of the system. The clarifier chambers shall conform to the following specifications: 8.2 The clarifier chamber shall be of such size as to provide a minimum of four (4) hours retention, based upon the same design flow rate governing the aeration chambers, + d s • an�ll have proper baffling to prevent short circuiting and to provide maximum A(,w�� uniform solids settling area. The clarifier shall be of the hopper clarifier type. Settled v e 9 a�S sludge shall be returned from the clarifier floor sludge well to the aeration chamber �L 33 by the positive sludge return systems, consisting of airlift pump. G j 0 8.3 The clarifier effluent shall pass over the edge of the baffled adjustable effluent weir into the effluent trough and then, out the chamber. The weir plate will be constructed of 1/8" galvanized steel or PVC sheet, and will be gasketed with 1/4" x 1" neoprene strips. 8.4 The clarifier hoppers shall penetrate the foundation pad. The hopper caps shall be reinstalled onto the main clarifier section by the field crew, by field welding. Once the caps are made watertight, the caps are grouted into position by the general contractor's field concrete contractor. 9.0 Airlift Sludge Recirculation System 9.1 Installed within the clarifier chamber for returning the settled sludge consisting of a positive sludge re -circulation system. It consists of two 2 1/2" diameter airlift sludge Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. 10.0 11.0 Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications . . return assembly with BIF Sludge Measuring Trough, meeting the following specifications: The airlift pump system shall have the re -circulation capacity ranging from 0% to 150% of the design flow. The air line supplying air tote pump shall e equipped with a needle valve varying the capacity of the pump. The airlift pump shall be firmly supported and shall be equipped with a clean -out plug to allow for easy cleaning and maintenance. Airlift Scum Recirculation System 10.1 Installed within each clarifier chamber for controlling and returning to floatables and scum, is a positive scum and skimming re -circulation system. It shall consist of two, 2" diameter airlift skimming device meeting the following specifications: The skimming device shall be of the positive airlift pump type, located in a position to skim and return floating material to the aeration chamber. The air line supplying air to the skimming device shall be equipped with a needle valve to regulate the rate of return. The scum intake shall be equipped- with an adjustable assembly which will enable exact positioning of the skimmer at water level without placing a hand under the water. The discharge port shall be sloped to enable the operator to determine the flow rate. Air Supply System 11.1 For supplying the air requirements of the wastewater treatment system, two, model TEII-100-R33 shall be furnished and installed at the location shown on the drawings. Each blower motor unit shall have the capacity of supplying 100% of the wastewater air requirements. Each unit shall be completely factory built and tested before shipping. 11.2 The blower motor units Model Roots URAI-33 shall be furnished for supplying all the air requirements needed for the wastewater treatment system. The units shall be capable of delivering 75 SUM at an operating pressure of 5 psi. 11.3 The blower shall be of the positive displacement type and shall be manufactured by Roots.. Division Dresser Industries; or approved equal. The model number of the blower will be URAI-33 or equal. 11.4 The motor shall be 5 HP for operation on 230 Volt, 3 Phase, 60 Cycle Service, 1800 RPM. It shall be of the ppen drip proof type. 11.5 The blower shall be mounted on a fiberglass base. The base shall be designed to support the blower and motor unit. Furthermore, the base shall have a blue finish. 11.6 The blower shall be connected to the motor by means of a 'Y belt drive unit. The Y' belt drive unit shall be designed for easy adjustment. The 'Y belt drive will enable speed adjustment of the blower unit in those applications where flow varies. The motor will be furnished with an adjustable motor mounting base. 11.7 Each blower shall be fitted with an air inlet filter type noise silencer. For connecting to the air manifold, the blower shall be fitted with a flexible rubber hose coupling with stainless steel clamps. Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1495 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. 12.0 Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications 11.8 Each blower shall and motor shall be enclosed with a fiberglass weatherproof enclosure. The weatherproof hood shall be designed for easy access to service the blower, motor, filter, or "V" belt drive unit. It shall be equipped with a lifting handle and locking facilities. All enclosure surfaces shall be properly prepared in a neat manner to obtain a smooth, clean dry surface. The enclosure shall have a light blue finish. 11.9 Each blower motor unit shall be mounted on a sound reduction skid. The units shall be attached by four (4) vibration pad dampers. This will help reduce blower vibration and noise transmission. For purposes of determining the blower performance, and/or diffuser condition, a pressure relief valve and pressure gauge shall be mounted in the air manifold. MAIN BLOWER ELECTRICAL CONTROL CONSOLE CP-1 12.1 An electrical control center, Model CP-1, shall be installed within a NEMA 4 enclosure complete with a mounting legs and located as shown on the plan drawings. 12.2 The electrical control center shall control the operation of all the auxiliary component equipment requiring electrical power. The blower motor unit operation time will be intermittent and as controlled by the blower timer. The plant operator shall control the operation time. The necessary selector switches shall be provided to allow either automatic or manual operation of the auxiliary equipment. 12.3 The enclosure shall be equal to a NEMA type 4. The electrical controls shall consist of IEC starters, timers, and selector switches necessary. Properly sized circuit breakers or fuses shall protect all electrical equipment and circuitry. 12.4 All wire and conduit required between the control panel and the electrical power service shall be furnished by and installed by the field controller. Wiring and conduit between the control panel and plant equipment shall be furnished by the manufacturer of the Tipton wastewater treatment system. The electrical control system shall be detached for shipping purposes. The main power supply shall be 230 Volt, 3 Phase, 60 Cycle. Power to the control panel shall be 110 volt, 1 phase. A power block in the control panel shall be supplied for the electrical connection. 12.5 The control console shall be a Model CPA and shall be completely factory assembled and tested prior to shipment. 12.6 Controls shall be mounted to a removable sub -panel within the enclosure and shall be wired and spaced in accordance with the latest National Electric Code. 12.7 Blower Operation Controls Method # 1. Each blower for the aeration chamber shall be controlled by the 24-hour, 7-day time clock and shall be capable of being programmed to control the blower run cycle and to adjust both the start set points every 15 minutes on the 24-hour cycle. The clock shall also include a skip -a -day feature which will allow a separate program. The clock shall be by Paragon, Model #1015. A selector switch shall be provided with off, on time clock operation. Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications 12.8 All wiring conductors within the control console shall be UL type MTW, stranded #14 AWG minimum, rated at 110 volts. Power wiring shall be color coded per National Electric Code. Control wiring shall be numbered on each end with a permanent heat -shrinkable sleeving made of flexible, irradiated, flame-retardant polyolefin. 13.0 SLUDGE HOLDING CHAMBER 13.1 There shall be supplied an aerated sludge holding chamber to work in conjunction with the aeration chamber and the clarifier chamber. The aerated sludge holding chamber shall be an integral section of the main system and shall conform to the following specifications: _3ZS5 13.2 The sludge holding chamber shall a of sufficient capacity to provide a total volume minimum chamber volume of allons: The vessel shall be so shaped on each side to prevent sludge accumulation, to enhance the rotation of the vessel contents, and to scum and froth accumulation. To insure maximum retention and eliminate w� } 5u' short circuiting of minuscule sewage particles, the aeration chamber shall be Dconstructed with air diffusers, laced longitudinally along one side of the chamber so P 9 Y 9 as to, in conjunction with flow control baffles, enhance the spiral rotation of the chamber contents. To ensure adequate circulation velocity, the proportion of the 1 •� chamber width to depth, in the direction of rotation, shall not exceed 1.33 to 1. The velocity of rotation shall be sufficient to scour the bottom and prevent sludge filleting as well as to prevent the escape to the surface of minuscule air diffusion bubbles and by so causing their entrapment to provide maximum oxygenation efficiency. 13.3 An air distribution manifold shall be installed longitudinally on one side of the tank with diffuser drop assemblies connected thereto. This manifold shall be designed to create a bank of air to supply the air needs of the system, and other ancillary equipment such as the air diffusers, airlift pumps, and scum skimmer to draw from this bank of air. 13.4 Each diffuser drop assembly shall be equipped with an air regulating and/or shutoff valve, a disconnecting union and a diffuser bar with non -clog air diffuser nozzles mounted on the tee bar. The air flow Der diffuser shall range from 1 to 5 CFM. This ✓r minimum air velocity shall be maintained to insure sufficient velocity for self -cleaning. — The diffusers shall be parallel to and near the base of the vessel side wall and at an elevation which will provide the optimum diffusion and mixing of the vessel contents. The oxygen transfer capacity of each diffuser shall be such that an adequate supply of oxygen will be maintained in the aeration chamber to meet treatment requirements of the design sewage load. The air diffuser shall be on the air check diaphragm type constructed with a diaphragm mounted on top of the diffuser body. The diffuser body consists of twenty, 3/16" diameter air discharge holes evenly distributed around the diffuser disk. The diffuser will be supplied with standard male pipe thread connections. 13.5 The flow into the sludge holding tank shall be direct from the sludge return pump. The necessary piping and valving shall be supplied to allow the to occur manually at the plant operators requirements. A supernantent return facilities shall be provided so that the overflow will return to the aeration chamber. Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine Mountain, N.C. 14.0 SERVICE WALKWAY AND STAIRWAY Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications 14.1 A walkway shall be provided for the Service area to service the.plant equipment and shall be located as shown on the drawings. Grating panels shall consist of one- piece skid resistant steel plate. All grating panels shall be constructed of 18 gauge, galvanized sheet steel with a maximum yield strength of 37,000 psi. Each grating panel has a standard 9-inch surface width, and a 2 1/2-inch rib depth. Furthermore, each. panel shall be so supported as to have a safe uniform load carrying capacity of 50 pounds per square foot. 14.2 Handrails shall be provided for the service area. The handrails shall consist of one (1)1 '/4" aluminum bar and 1 cable rail. 27.0 DISINFECTION CHAMBER A baffle type chlorine contact chamber shall be provided, constructed as an integral part of the treatment system. The contact chamber shall be installed immediately following the clarifier. The tank shall be sized for a capacity of 400 gallons based on 30-minute retention of the design flow rate. Baffles shall be provided to prevent �7 Gs• short-circuiting and shall be designed to keep floating material from leaving the " r � l chamber. �v J re Sufficient flow baffles will be supplied to assure proper mixing of the chlorine solution with the system effluent. The chlorinator shall be supplied by others. 29.0 EFFLUENT CONNECTION The effluent connection of the tertiary treatment system shall be located as shown on''the plans and shall consist of one 6" diameter standard flanged pipe at the location shown. 30.0 FIELD ASSEMBLY The shipment of the "TEII" wastewater treatment system is done by special lowboy trucks directly to the job site. The equipment necessary to unload the plant and set it on the foundation pad must be furnished by the field contractor. The access road into the project site to handle these lowboy trucks will be the responsibility of the field contractor. The package steel treatment systems shall be completely assembled units and are shipped as a unit where shipping height limitations permit. Portion of the equipment must be removed to meet the shipping height limitations. This equipment will be packaged separately at the factory for reassembly at the field. The equipment should be -field assembled and installed by the field contractor. Tipton Environmental international, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 TEII Systems Specifications Sheet Sales Agent: McCall Brothers Project Name: Pine Mountain, N.C. Project Location: Pine -Mountain., N.C. 31.0 FIELD SERVICE Project No. 2001-20JCS Design Flow 20,000 GPD October 15, 2001 Wastewater Treatment System Specifications At the time the wastewater treatment system is filled with water or sewage, all power connections have been completed, and all equipment is approved for service, the contractor shall provide the services of a representative of the manufacturer who shall instruct the owner's representative in the proper operation and maintenance of the wastewater treatment system including instructions in conducting all required operational tests. The manufacturer's representative shall furnish at this time, a service manual on the equipment installed within the wastewater treatment system. The manufacturer's representative shall for a period of one (1) year after delivery is made, make periodic inspections of the system, advising the owner's representative of any operational difficulties. 32.0 Guarantee The manufacturer of the wastewater treatment system shall guarantee for one (1) year from the date of shipment that the vessel and all component equipment shall be free from defective materials and workmanship. The manufacturer shall furnish replacement parts for any component considered in the opinion of the manufacturer to be defective, whether of his other manufacturer during this guarantee period. Tipton Environmental International, Inc. 4446 State Route 132 Batavia, OH 45103 Phone:513-735-2777 Fax:513-735-1485 i r,; YY �5;!VY�'S414�iLRSAR)R]R.i� Based on its experience at Churchland elementary school and other field research, NCA2 offers several suggestions for upgrading wastewater treatment systems at schools in order to meet more stringent effluent quality standards. Design schematics for ABONS at a nursing home. As in the case of schools, NCA2 seeks to utilize the existing infrastructure as much as possible. NCA` developed the Geyser Pump for its Flow Equalization Units. The pump offers many benefits for wastewater treatment ;r/'P 'ZAN dz_ F10w E'�0� %(j ��ifm �_ �� �, �� 4 �� �+ �� � t� ��� 1 �� �i� �':.a �� � ��s ��� I � _ �- -� � �"'�- '� � �/�� _/ r �„-'_- !r ,,_ w.- Y -- -; ... .. r �� �/ �/ w