The URL can be used to link to this page

Home My WebLink AboutNC0083941_Compliance Evaluation Inspection_20190318ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Director Shannon V.Becker Aqua North Carolina, Inc. 202 Mackenan Court Cary, NC 27511 NORTH CAROLINA Environmental Quality March 18, 2019 Subject: Compliance Evaluation Inspection Report Spring Creek W WTP NPDES Permit NCO083925 and Collection System WQCSDO195 Davidson County Dear Mr. Becker: On February 21, 2019, Paul DiMatteo and Jenny Graznak of the Division of Water Resources (Division), Winston- Salem Regional Office met with Charles Pearson, Operator in Responsible Charge (ORC) to conduct Compliance Evaluation Inspections of the above referenced wastewater treatment systems. This inspection consists of a review of the permit and accompanying documentation to determine compliance with permit conditions, and an on -site inspection of several collection system components. The attached inspection form notes the areas that were evaluated for the inspection, with notable findings outlined as follows. 1. The inspector noted a concern with the amount of air gap under the effluent weir's nappe due to the relatively high water level in the downstream basin. If submerged flow becomes apparent, appropriate steps should be taken to ensure accurate readings. 2. Two manholes were inspected: one just outside the wastewater treatment plant, and one near Twin Valley Drive & Twin Valley Court. The latter manhole had a buildup of debris. Mr. Pearson said he recently had someone flush this line, and that we would have them come out again. The inspections were considered compliant. If you have any questions concerning this report please contact Paul DiMatteo at (336) 776-9691 or Lon Snider at (336) 776-9800. Sincerely, oocull Cmidinc SMYt,• 14564BE2YSC84EA... Lon T. Snider, Assistant Regional Supervisor Water Quality Regional Operations Section Winston-Salem Regional Office Division of Water Resources, NCDEQ Enclosures — Inspection Report (x2) CC: WQS Winston-Salem Regional Office —PERGSIWt VS Central Files D_EQ� North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1 450 Hanes Mill Road, Suite 3001 Winston-Salem, North Carolina 27103 me - wvllalmwxr 336.776.9800 United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fee Type 1 IN 1 2 IS I 3 I NCO083941 I11 121 19/02/21 I17 18I t 19 Ls I 201 I 21IIIIII IIIIIIIIIIIIIIIIII I IIIIII IIIII11IIII f6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 CA — -Reserved — 67I I 701 I 71 it1 I 72 1 L�, 1 731 I 174 75I I I I I I I I80 I� LJ J I I I Section B: FacilityData Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 11:OOAM 19/02/21 14/06/01 Spring Creek WWTP 292 Central Rd Exit Time/Date Permit Expiration Date Winston Salem NC 27102 12:30PM 19/02/21 19/05/31 Name(s) of Onsite Representative(s)/Tilles(s)/Phone and Fax Number(s) Other Facility Data Charles Alton Pearson/ORC// Name, Address of Responsible Official/Title/Phone and Fax Number - Contacted Joseph R Pearce,202 Mackenan Crt Cary NC 27511/Director of Operations/919-653-6964/9194601788 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement M Operations & Maintenance Records/Reports Self -Monitoring Program Sludge Handling Disposal 0 Facility Site Review Effluent/Receiving Waters Laboratory.. Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Jennifer F Graznak Ducuslgned by: WSRO WQ//336-771-5000/ ��,��, WSRO WQ//336-776-9691/ 3/18/2019 Paul DiMatteo [11F10C7C2E5BB34D4 . Signature of Management Q A Reviewer Stgnedby: Agency/Office/Phone and Fax Numbers Date H0', —C Siugw 3/18/19 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type (Cont.) 1 31 NCO083941 I11 12 19/02/21 17 18 ICI Section D: Summary of Finding/Comments (Attach additional lssheets of narrative and checklists as necessary) I initially met with Mr. Pearson on 1/30/2019 to get a brief overview of the plant and observe his sample collection practices. Jenny Graznak and I then did a more thorough inspection on 2/21. Sludge hauling by Forsyth Rooter Service, taken to Archie Elledge 11/30/2018 08,000 gal 05/25/2018 12,000 gal 11/28/2017 12,000 gal 11/28/2017 12,000 gal 11/21/2017 06,400 gal 05/26/2017 16,000 gal 04/15/2016 19,200 gal Concern with flow measurement - there was not much of an air gap between the bottom of the weir crest and the downstream water level. This should be monitored. If submerged flow is apparent then appropriate action should be taken to ensure accurate readings. If possible, the downstream water level should be lowered. Page# Permit: NCO083941 Inspection Date: 02/21/2019 Owner -Facility: Spring CreekWWrP Inspection Type: Compliance Evaluation Operations $ Maintenance Yes NO. NA NE Is the plant generally clean with acceptable housekeeping?. 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable 0 ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Mr. Pearson said his primary process control test was Sludge Volume Index (SVI) Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ M ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical ❑ Are the bars adequately screening debris? 0 ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment Equalization Basins Yes No NA NE Is the basin aerated? ❑ 0 ❑ ❑ Is the basin free of bypass lines or structures to the natural environment? 0 ❑ ❑ ❑ Is the basin free of excessive grease? _ ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? ❑ ❑ 0 ❑ Are audible and visual alarms operable? ❑ ❑ 0 ❑ # Is basin size/volume adequate? ❑ ❑ ❑ Page# 3 Permit: NCO083941 Inspection Date: 02/21/2019 Owner -Facility: Spring Creek WWfP Inspection Type: Compliance Evaluation Equalization Basins - Yes No NA NE Comment: Mr. Pearson said he recently got some blowers and diffusers to aerate the EQ basin Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused Is the basin free of dead spots? N ❑ ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ N ❑ Are the diffusers operational? 0 ❑ ❑ ❑ Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? N ❑ ❑ ❑ Is the DO level acceptable? ❑ ❑ ❑ 0 Is the DO level acceptable?(1.0 to 3.0 mg/I) ❑ ❑ ❑ Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? ❑ ❑ 0 ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ 0 ❑ Are weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ - ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive Floating sludge? _ ❑ ❑ ❑ Is the drive unit operational? ❑ ❑ 0 ❑ Is. the return rate acceptable (low turbulence)? E ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately of the sidewall depth) 0 ❑ ❑ ❑ Comment: There was approx. 5 feet of sludge in the clarifier Disinfection - UV Yes No NA NE Are extra UV bulbs available on site? N ❑ ❑ ❑ Are UV bulbs clean? 0 ❑ ❑ ❑ Is UV intensity adequate? ❑ ❑ ❑ Is transmittance at or above designed level? ❑ ❑ ❑ Page# 4 Permit: NCO083941 Owner - Facility: Spring Creek wWTP Inspection Date: 02/21/2019 Inspection Type: Compliance Evaluation Disinfection - UV Yes 'No NA NE Is there a backup system on site? 0 ❑ ❑ ❑ Is effluent clear and free of solids? 0 ❑ ❑ ❑ Comment: B bulbs. Aerobic Digester Yes No NA NE Is the capacity adequate? 0 ❑ ❑ ❑ Is the mixing adequate? 0 ❑ ❑ ❑ Is the site free of excessive foaming in the tank? 0 ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? ❑ ❑ ❑ Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ M ❑ Comment: Bubbler flow meter on 90 degree weir. The level lust beyond the weir was such that there was little space for an air gap. Standby Power Is automatically activatedstandby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate the entire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Comment: Laboratory Are field parameters performed by certified personnel or laboratory? Are all other parameters(excluding field parameters) performed by a certified lab? # Is the facility using a contract lab? Yes No NA NE ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ 0 ❑ ❑ ❑ Page# 5 Permit: NCO083941 Owner - Facility: Spring Creek WWTP Inspection Date: 02/21/2019 Inspection Type: Compliance Evaluation Laboratory Yes No NA NE # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees ❑ ❑ ❑ Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ ❑ 0 Incubator (BOD) set to 20.0 degrees Celsius +/_ 1.0 degrees? ❑ ❑ ❑ Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? M ❑ ❑ ❑ Is sample collected below all treatment units? IN ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency,. sampling type 0 ❑ ❑ ❑ representative)? Comment: Sampler was set to take 100 ml every 7 pulses. with 1 pulse = 50 oallons and no max. Mr Pearson said on average it fills the sample iuo halfway. Effluent Pipe - Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? 0 ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment: Record Keeping Are records kept and maintained as required by the permit? Is all required information readily available, complete and current? Are all records maintained for 3 years (lab. reg. required 5 years)? Are analytical results consistent with data reported on DMRs? Is the chain -of -custody complete? Dates, times and location of sampling Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Yes No NA NE- ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Page# 6 Permit: NCO083941 Inspection Date: 02/21/2019 Record Keeping Transported COCs Are DMRs complete: do they include all permit parameters? Owner -Facility: Spring Creek WWfP Inspection Type: Compliance Evaluation Has the facility submitted its annual compliance report to users and DWQ? (If the facility is = or> 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? Is the ORC visitation log available and current? Is the ORC certified at grade equal to or higher than the facility classification? Is the backup operator certified at one grade less or greater than the facility classification? Is a copy of the current NPDES permit available on site? Facility has copy of previous year's Annual Report on file for review? Comment: Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ Page# 7