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HomeMy WebLinkAboutWQ0036942_Contractor Inspection_20221202Aerobic Septic System Inspection Report Maintenance Entity: McFarland Septic, LLC Address: 6801 Mt. Hermon Church Road, Durham, NC 27705 (919)383-1015 www.mcfarlandseptic.com Email: mcfarlandseptic@gmail.com Contact: Bob McDonald Installation Date: 1 1! 10,2015 Required frequency of visits is every 6 mont Date of inspection visit: 1210212022 System Name: Clearstream Serial Number: Model Number: Inspected by: Adam Moneypenny Inspected Item: Aerators Filters Irrigation Pumps Recirculation Pumps Disinfection Device Chlorine Supply Electrical Circuits Distribution System Spray..Drip Field Vegetative Cover Other Item(Specify) Permit Number: WQ0036942 hs. Date of previous visit: 05.`28.'2022 Owner: Tom Tucker Property Address: 5015 Mt. Moriah Rd City, State, Zip: Durham, NC, 27707 Signature: Operational Clearstream alarm Inoperative El El Not Applicable Repairs to system (list all components replaced): 1. The septic tank is due for pumping. 2. The alarm light on the Clearstream unit needs to be replaced. 3. The alarm switchboot is deteriorated and should be replaced. 4. One of the sprayheads in the field is broken which does not allow for the sprayhead to go back down properly. Tests required and results: Influent Results il!BOD NA mg.L TSS NA mglL TKN NA mgi L Effluent Results CBOD NA mg1L TSS NA mg1L NH4N NA mg}L Fecal Coliform NA MPN. 100 mL Comments: 1. The septic tank is due for pumping. 2. The alarm light on the Clearstream unit is not working. 3. The alarm silence switchboot has deteriorated on the Clearstream unit and should be replaced. 4. One of the sprayheads in the sprayfield is broken and remains up when the pump is off. 5. Pulled samples during ORC visit and delivered them to the lab for analysis on 12-02-22. NORTH CAROLINA DEPARTMENT OF HEALTH AND HUMAN SERVICES DIVISION OF PUBLIC HEALTH ENVIRONMENTAL HEALTH SECTION ON -SITE WATER PROTECTION BRANCH CONTROLLED DEMONSTRATION WASTEWATER SYSTEM APPROVAL CONTROLLED DEMONSTRATION NO: CDWS-2009-02-RI Issued To: For: Kevin Sherman Clearstream Wastewater Systems, Inc. PO Box 7568 Beaumont, Texas 77726 409-755-1500; Fax: 409-755-6500 www.cleastreamsystems.com Clearstream advanced wastewater pretreatment system N Models, NC Models, NU Models, NC2 Models, NC3 Models, D Models, DC Models, DU Models, DD Models, DDC Models, DA Models, DCA Models, DUA Models, DDA Models, and DDAC Models Approval Date: February 19, 2009 May 30, 2014 Expansion of approved models and other modifications In accordance with North Carolina General Statute 130A-343 and 15A NCAC 18A .1969 and .1970, a proposal by Clearstream Wastewater Systems, Inc., for approval of subsurface systems utilizing the Clearstream advanced wastewater pretreatment units has been reviewed and the system has been found to meet the standards of a Controlled Demonstration system when all of the following conditions are met: I. General A. Scope of this Controlled Demonstration Approval 1. Clearstream advanced wastewater pretreatment units are designed, installed, operated and maintained to meet TS-I effluent standards in accordance with Rule 15A NCAC 18A .1970. Refer to Rule .1970(a) Table Vll - Effluent Quality Standards for Advanced Pretreatment Systems for treatment performance levels. 2. Obtain field performance data from modified Clearstream advanced wastewater pretreatment systems intended to meet TS-I1 effluent quality standards. 3. Proposal for evaluation of this Controlled Demonstration system. B. This Controlled Demonstration Approval is only applicable to systems that have a design flow not exceeding 1,500 gallons per day. C. Influent waste strength to a Clearstream advanced wastewater pretreatment system shall not exceed domestic septic tank quality effluent standards pursuant to Rule .1970(b). D. Approval is limited to 175 TS-I systems and 25 TS-I-denitrification/disinfection systems (D and DA Models). The intent of this Controlled Demonstration is to gain field experience sufficient to CDWS-2009-02-R 1 May 30, 2014 Page3of13 in accordance with Rule .1970 for an NSF-40 or TS-I system. Siting requirements for subsurface drip systems receiving effluent treated to the NSF-40 or TS-I standard shall comply with the applicable subsurface drip system approval. IV. System Sizing The system sizing criteria shall be based upon the long term acceptance rate specified in the appropriate portion of the rules or innovative and Experimental approval for the type of ground absorption system to be used. V. Special Site Evaluation A special site evaluation may be required based on the proposed ground absorption system. Refer to manufacturer specific drip approvals and Rule .1970(p). VI. Design Critera A. A Clearstream advanced pretreatment system shall utilize models of Clearstream RWTS that have been approved by the State in accordance with Rule .1957(c), in addition to meeting the requirements listed below. B. The Clearstream advanced pretreatment system requires a settling tank that is either an integral chamber of the tank or a separate State approved prefabricated tank. The system model number and the settling tank sizing are specified in Table 1, below. Table 1 Design Flow (gallons per day) Clearstream Model Number Minimum Required Settling Tank Size 500 500-N, 500-NC, 500-D, 500-DC, 500-DA, 500-DCA 250, Separate 600 600-N, 600-NC, 600-D, 600-DC, 600-DA, 600-DCA 300, Separate 600 600-NU, 600-DU, 600-DUA 300, Integral 600 600-NC3 400, Integral 750 750-N, 750-NC, 750-D, 750-DC, 750-DA, 750-DCA 375, Separate 1,000 I000-N, 1000-NC, 1000-D, 1000-DC, 1000-DD, 1000- DDC, 1000-DA, 1000-DCA 500, Separate 1,500 1500-N, 1500-NC, 1500-NCD, 1500-D, 1500-DC, 1500-DCD, 1500-DA, 1500-DCA, 1500-DDAC 750, Separate C. Effluent from Clearstream advanced pretreatment systems may be conveyed to a gravity distribution nitrification field or to a dosing tank. Effluent from a dosing tank may be distributed COWS-2009-02-R I May 30, 2014 Page 5 of 13 Clearstream Wastewater Systems, Inc and the system designer. K. The Clearstream advanced pretreatment system tanks shall not be placed in driveways, parking areas, or areas subject to vehicular traffic. VII. Installation and Testing A. A preconstruction conference is required to be attended by the system designer, engineer (if required), Clearstream manufacturer's representative, Clearstream certified installer, and local health department (LHD) prior to beginning construction of a Clearstream advanced pretreatment system and associated soil absorption system. B. The Clearstream advanced pretreatment system shall be located in compliance with the horizontal setback requirements of Rule .1950(a) and Rule .1970 and shall be located to prevent surface/subsurface water inflow. infiltration. The drainfield horizontal setbacks are in accordance with Rule .1970, as appropriate for an NSF-40 or TS-I system. C. All Clearstream advanced pretreatment systems shall be installed according to directions provided by the manufacturer in their installation manual and instructions found on Clearstream drawings and specifications for each system. Additionally, all Clearstream advanced pretreatment systems and components used with, but not manufactured by Clearstream Wastewater Systems, Inc., shall be installed in accordance with all applicable regulations and manufacturer instructions. D. All individuals.companies installing Clearstream advanced pretreatment systems shall be in possession of all necessary permits and licenses before starting any portion of an installation. The company/individual must be a Level IV installer and Clearstream Wastewater Systems, Inc, certified. E. Watertightness of the tanks shall be demonstrated by a 24-hour leakage test conducted at the installation site or by an approved vacuum testing method prior to backfilling. A water level change of 1/2 inch or more within a 24-inch riser over 24 hours, or visual observation of leakage shall be cause for failure of the watertightness test. Initial water level shall be to 2 inches above the riser/adapter seam. F. The Clearstream manufacturer's representative and engineer or designer of record shall start-up the Clearstream advanced pretreatment system for each installation and provide installation and start-up acceptance letters to the LHD prior to issuance of the operation permit. G. Specified site preparation steps and construction specifications for the soil absorption system shall be strictly adhered to, including specified depth of trenches in relation to site limiting conditions, cover material specifications (if needed), trench installation method, etc. H. Each Clearstream advanced pretreatment system Control Panel shall have a label affixed as shown in Attachment B. I. Prior to Operation Permit issuance, the engineer or designer of record and the manufacturer's representative shall conduct an inspection start-up of all associated system components, including CDWS-2009-02-R 1 May 30, 2014 Page 7 of 13 14. Any structural damage, accessibility issues, adequate ventilation, excess odors, insect infestations, vegetative growth over the drainfield, or surfacing of effluent on the drainfield area. 15. Sample of Clearstream advanced pretreatment system effluent collected from the sampling point to check for effluent clarity and odor, and a sample of influent, as required. E. The ORC shall also conduct other additional observations, measurements, monitoring, and maintenance activities as specified in the Operation Permit and as recommended by the manufacturer. F. Sampling and Testing 1. All sampling shall be done in accordance with Rule .1970(n)(3) and (5). 2. Influent samples shall be taken from beneath the access opening over the settling chamber, from within the outlet tee. The sample shall be taken from the clear zone beneath any scum layer using a sludge judge or similar device. 3. Clearstream advanced pretreatment system effluent samples shall be taken from an approved sampling port, as described above (and see detail in Attachment). The sampling port shall be located immediately following the drainfield dosing pump and filter, when present. The approved sampling port shall include a 1/2-inch tap with ball valve in the discharge line inside the pump tank riser. To obtain the sample, the ball valve shall be fully open with the pump running for at least 30 seconds before taking the grab sample. These samples shall be taken .41 at least quarterly for at least a 12 month period or until Innovative Approval for the system is granted by the State. 4. All systems shall be tested for effluent CBOD;, TSS, NH,-N, and fecal coliform bacteria. Influent shall be tested for BOD5 and TKN. The manufacturer may choose for TS-1 denitrification/disinfection system effluent to be additionally tested for TN. `5. Flow monitoring shall include a determination of the 7-day and 30-day flow for the corresponding time period preceding each ORC inspection/sample collection. Flows shall be determined by using the data -logger or elapsed time meter data in the effluent pumping station control panel, or in the ground absorption system control panel, where applicable. G. Notification and Performance of Maintenance and Repairs 1. The ORC shall alert Clearstream Wastewater Systems, Inc, the LHD, and the system owner in a timely fashion of needed maintenance or repair activities including, but not limited to, landscaping, tank sealing, tank pumping, pipe or control system repairs, blower/filter replacement, and adjustments to any other system component. 2. The ORC shall notify the system owner, Clearstream Wastewater Systems, Inc. and the LHD whenever the pump delivery rate efficiency and/or average pump run time are not within 25% of initial measurements conducted prior to system startup. 3. System troubleshooting and needed maintenance shall be provided to maintain the pump delivery rate and average pump run time within 25% of initial measurements conducted during system startup. 4. The settling tank and/or aeration tank will be pumped as needed upon recommendation of the ORC and in accordance with the Clearstream Wastewater Systems, Inc. O&M Manual. However, at a minimum, the septic tank will be pumped whenever the solids level exceeds 25°.0 of the tank's total liquid working capacity or the scum layer is more than 4 inches thick. 5. The tanks shall be pumped by a properly permitted septage management firm, and the septage handled in accordance with 15A NCAC 13B .0800. CDWS-2009-02-R 1 May 30, 2014 Page 9 of 13 - For coastal resort communities, the two samples shall take place between June 1 and September 8 of each year. The samples must be taken at least six weeks apart. - Other seasonal homes shall be sampled during the projected times of greatest use. A copy of the sample results will be provided directly from the laboratory to the On - Site Water Protection Section. - The State of North Carolina and Clearstream Wastewater Systems, Inc. agree that any systems that are out of compliance due to owner intervention, i.e. excessive flows, chemical disposal, or high strength waste, etc., shall not be considered in the Controlled Demonstration approval. d. Compliance of each site and the system shall be in accordance with the requirements of Rule .1970. IX. Responsibilities and Permitting A. Prior to the installation of a Clearstream advanced pretreatment system at a site, the owner or owner's agent shall fill out an application at the LHD for the proposed use of this system. The LHD shall issue an Improvement Permit or Construction Authorization or amend a previously issued Improvement Permit or Construction Authorization allowing for the use of up to 175 TS-I systems and 25 TS-I denitrification/disinfection systems. B. The Improvement Permit and Construction Authorization shall contain all conditions the site approval is based upon, including the proposed use of the Controlled Demonstration system. The operation permit will include all conditions specified in the Improvement Permit and Construction Authorization. The On -Site Water Protection Branch shall be notified of all permits issued for a Controlled Demonstration system. C. When a special site evaluation is required pursuant to Rule . I970(p)(1) or a drip approval, an evaluation and written, sealed report from a Licensed Soil Scientist regarding the site shall be provided to the LHD. The report shall contain the information as specified in Rule .1970(p)(2) and "Requirements for Submittals of Soil Reports and Pretreatment and/or Dispersal System Designs". The LHD may request the assistance of their Regional Soil Scientist in evaluating this report prior to permit issuance. D. The Clearstream advanced pretreatment system shall be designed by one of the following: a Clearstream Wastewater Systems, Inc. authorized designer or a North Carolina Professional Engineer. E. Prior to the issuance of a Construction Authorization for a Clearstream advanced pretreatment system, a design submittal prepared by an authorized designer or North Carolina Professional Engineer shall be submitted for review and approval by the LHD. The design submittal shall include the information required in "Requirements for Submittals of Soil Reports and Pretreatment and/or Dispersal System Designs". F. A North Carolina Professional Engineer is required for all systems with a design flow greater than 1,000 gallons/day. All design submittals shall be accompanied by a design certification from Clearstream Wastewater Systems, Inc. G. It is recommended that local authorized environmental health practitioners attend a design CDWS-2009-02-R 1 May 30, 2014 Page 11 of 13 Attachment A Model DA and D Drawings GRADE AERATOR NOTE: PRETREATMENT TANK VOLUME MUST BE A MINIMUM OF 50% OF THE GALLON PER DAY RATING OF CLEARSTREAM TREATMENT TANK 1 AERATION CHAMBER INSPECTION/SAMPLING PORT (CLOSED W/ORANGE PLUG) AIR LINE - CONDUIT DIFFUSER TYP (2) ACCESS COVER FOR 12" OPENING r HIGH LEVEL FLOAT / AIR VOLUME CONTROL VALVE AIR SOLENOID VALVE /— ACCESS COVER FOR 12" OPENING AIRLIFT ASSEMBLY CLARIFIER AERATION TANK A GRADE C FLOW LINE CDWS-2009-02-R1 May 30, 2014 Page 13 of 13 Attachment B Label is 4.75" long by 1.5" tall. NON -TYPICAL SEPTIC SYSTEM CLEARSTREAM SYSTEMS CONTROLLED DEMONSTRATION SUBSURFACE WW OPERATOR NAME AND CONTACT INFORMATION NON -TYPICAL SEPTIC SYSTEM CLEARSTREAM CONTROLLED DEMONSTRATION. GRADE II WW OPERATOR REQUIRED. ANY PROBLEMS, CONTACT HEALTH DEPT AT