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Home My WebLink AboutNC0021849_Compliance Evaluation Inspection_20200819ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director Pamela Hurdle Town of Hertford 324 W Grubb St Hertford, NC 27944 r NORTH CAROLINA Environmental Quality September 17, 2020 SUBJECT: Compliance Inspection Report Hertford WWTP NPDES WW Permit No. NCO021849 Perquimans County Dear Mrs. Hurdle: The North Carolina Division of Water Resources conducted an inspection of the Hertford WWTP on 8/19/2020. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0021849. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". Please respond in writing to this office within 30 days of your receipt of this letter regarding your plans or measures to be taken to address the following issues: The facility was found to barely meet compliance with permit NC0021849. As such, a follow up inspection will be scheduled and conducted within a reasonable time frame agreed upon with the ORC to remedy the issues below. If these issues are not remedied, the facility may be found to be noncompliant and enforcement actions may be pursued. There was vegetation growing on the equipment in the facility. Namely on the blowers in the oxidation ditch, on one of the drivers in one of the clarifiers and in the center of one clarifier. This vegetation needs to be removed in a safe and effective manner that does not violate the permit as soon as possible. Please review permit Condition 2 in Section C in part II "Standard Conditions for NPDES Permits". One of the two dual automatic backwashing disk filters were down. The ORC stated the parts for fixing the filter was already acquired and he was finding the time to fix it. It is expected to be fixed on the follow up inspection of the facility. Na4 =paer tt �rm5taQ'a tvt Dos \ \ it" > ..a `o'ae^ 5nna_S .rs 9ffu 35ol'asr yco.. a.ars Ka It. s:. cgu,., Natt _a 2'.6G'. °2-6 ^ K61 If you should have any questions, please do not hesitate to contact Paul Mays with the Water Quality Regional Operations Section in the Washington Regional Office at 252-948-3940 or via email at paul.mays@ncdenr.gov. Sincerely, PMAL lit. S Paul Mays, Environmental Specialist I Water Quality Regional Operations Section Washington Regional Office Division of Water Resources, NCDEQ ATTACHMENTS Cc: Laserfiche No-¢^ Za eDope ��et .,= -a v f . x.Fzs-- ax Sne Reg". Dix 134Us-g sM1's leasFo[ 2?668 ' 52248 6461 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 Fac Type 1 IN 1 2 15 I 3 I NCO021849 11 12 20/08/19 17 181r 1 191 c 201I 211IIIII IIIIIIIJ1II IIIIIII1IIIIII IIIIII1IIII r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 CA Reserved ------------------- 70 U 71 I I 72 LI rJJ I I I 731 I 174 7 I I I I I I I I8O 67I--------- Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES oermit Number) 02:OOPM 20/08/19 18/07/01 Hertford WWTP 114 W Grubb St Exit Time/Date Permit Expiration Date Hertford NC 27944 03:30PM 20/08/19 22/12/31 Name(s) of Onsite Representative(s)Ttles(s)/Phone and Fax Number(s) Other Facility Data /// Charles Anderson Jones/ORC/252-333-6948/ Name, Address of Responsible OffcialTtle/Phone and Fax Number Contacted Pamela Hurdle,324 W Grubb St Hertford NC 279441Town Manager/252-426-1969/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Sludge Handling Dispo; Facility Site Review EfFluenUReceiving Wate 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 Dwight R Sipe DWR/WARO GW/ - - / Paul M Mays DWR/WARO WQ/252-948-3940/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type (Cont.) 31 Nco021849 11 121 20/08/19 17 18 1 c I Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Permit expires 12/31/2022 On 8/19/2020 Paul Mays and Randy Sipe conducted a compliance evaluation of Hertford WWTP. Below are the findings of the inspection: September 2019 eDMR was spot checked with corresponding lab data without discrepancies. Most of the required documentation was present and provided when asked for. Mr. Jones had to email in the annual compliance report, and it was found to be satisfactory. There was vegetation growing on the equipment in the facility. Namely on the blowers in the oxidation ditch, on one of the drivers in one of the clarifiers and in the center of one clarifier. This vegetation needs to be removed in a safe and effective manner that does not violate the permit as soon as possible. Please review permit Condition 2 in Section C in part II "Standard Conditions for NPDES Permits". One of the two dual automatic backwashing disk filters were down. The ORC stated the parts for fixing the filter that was down was already acquired and he was finding the time to fix it. It is expected to be fixed on the follow up inspection of the facility. A small amount of sludge was present in the chlorine contact chamber. However, the effluent looked to be of good quality. The drying beds have vegetation growing in them. However, they are only utilized in emergency situations and are currently not in use. Effluent sampler is time proportional. A sample is obtained every 15 minutes. The temperature was measured at 4 degrees Celsius for the influent sampler. Influent sampler is time proportional. A sample is obtained every 15 minutes. The temperature was measured at 6 degrees Celsius for the influent sampler. Effluent flowmeter was calibrated on 2/18/2020 Influent flowmeter was calibrated on 2/18/2020 The facility was found to barely be compliant with permit NC0021849. As such, a follow inspection will be scheduled and conducted within a reasonable time frame agreed upon with the ORC to remedy these issues. If these issues are not remedied, the facility may be found to be noncompliant and enforcement actions may be pursued. Page# Permit: NCO021849 Owner -Facility: Hertford WWTP Inspection Date: 08/19/2020 Inspection Type: Compliance Evaluation Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ M ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? 0 ❑ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: Permit expires 12/31/2022 Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all required information readily available, complete and current? M ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? M ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ 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 Transported COCs Are DMRs complete: do they include all permit parameters? 0 ❑ ❑ ❑ 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 operatc ❑ ❑ 0 ❑ on each shift? Is the ORC visitation log available and current? 0 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification' 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ Comment: September 2019 eDMR was spot checked with corresponding lab data without discrepancies. Most required documentation was present and provided when asked for. Mr. Jones had to email in the annual compliance report and it was found to be satisfactory. Operations & Maintenance Yes No NA NE Page# 3 Permit: NCO021849 Owner -Facility: Hertford WWTP Inspection Date: 08/19/2020 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: There was vegetation growing on the equipment in the facility. Namely the blowers in the oxidation ditch on one of the drivers in one of the clarifiers and in the center of one clarifier. This vegetation needs to be removed in a safe and effective manner that does not violate thl permit as soon as possible. Please review permit Condition 2 in Section C in part II "Standard Conditions for NPDES Permits". Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? M ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? N ❑ ❑ ❑ Comment: Flow Measurement - Influent 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? ❑ ❑ ❑ Comment: Influent sampler was calibrated on 2/18/2020 Influent Sampling Yes No NA NE # Is composite sampling flow proportional? ❑ M ❑ ❑ Is sample collected above side streams? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? M ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? 0 ❑ ❑ ❑ Comment: Influent sampler is time proportional. A sample is obtained every 15 minutes.The temperature was measured at 6 degrees Celsius for the influent sampler. Page# 4 Permit: NC0021849 Owner -Facility: Hertford WWTP Inspection Date: 08/19/2020 Inspection Type: Compliance Evaluation Influent Sampling Yes No NA NE Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter? ❑ ❑ M ❑ Is the grit free of excessive odor? 0 ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment Pumps-RAS-WAS Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? 0 ❑ ❑ ❑ Are there adequate spare parts and supplies on site? ❑ ❑ ❑ Comment: Aerobic Digester Yes No NA NE Is the capacity adequate? N ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Comment: Drying Beds Yes No NA NE Is there adequate drying bed space? 0 ❑ ❑ ❑ Is the sludge distribution on drying beds appropriate? M ❑ ❑ ❑ Are the drying beds free of vegetation? ❑ M ❑ ❑ # Is the site free of dry sludge remaining in beds? M ❑ ❑ ❑ Is the site free of stockpiled sludge? M ❑ ❑ ❑ Is the filtrate from sludge drying beds returned to the front of the plant? ❑ ❑ ❑ # Is the sludge disposed of through county landfill? ❑ ❑ ❑ IN # Is the sludge land applied? 0 ❑ ❑ ❑ Page# 5 Permit: NCO021849 Inspection Date: 08/19/2020 Dryina Beds (Vacuum filters) Is polymer mixing adequate? Owner -Facility: Hertford WWTP Inspection Type: Compliance Evaluation Yes No NA NE ❑ ❑ ❑ Comment: The drying beds have vegetation growing in them. However, they are only utilized in emergency situations and are currently not in use. Chemical Feed Yes No NA NE Is containment adequate? 0 ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ Are backup pumps available? M ❑ ❑ ❑ Is the site free of excessive leaking? 0 ❑ ❑ ❑ Comment: Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Is the generator tested by interrupting primary power source? M ❑ ❑ ❑ Is the generator tested under load? 0 ❑ ❑ ❑ Was generator tested & operational during the inspection? 0 ❑ ❑ ❑ Do the generator(s) have adequate capacity to operate the entire wastewater site? M ❑ ❑ ❑ Is there an emergency agreement with a fuel vendor for extended run on back-up power? N ❑ ❑ ❑ Is the generator fuel level monitored? 0 ❑ ❑ ❑ Comment: Oxidation Ditches Yes No NA NE Are the aerators operational? 0 ❑ ❑ ❑ Are the aerators free of excessive solids build up? 0 ❑ ❑ ❑ # Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? ❑ ❑ ❑ Are settleometer results acceptable (> 30 minutes)? ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ ❑ ❑ M Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) ❑ ❑ ❑ Comment: There is vegetation growing on a few of the blowers in the oxidation ditch. This vegetation needs to be removed in a safe and effective manner that does not violate the permit Please review permit Condition 2 in Section C in part II "Standard Conditions for NPDES Permits'. Page# 6 Permit: NCO021849 Inspection Date: 08/19/2020 Owner -Facility: Hertford WWTP Inspection Type: Compliance Evaluation Secondary Clarifier Is the clarifier free of black and odorous wastewater? Is the site free of excessive buildup of solids in center well of circular clarifier? Are weirs level? Is the site free of weir blockage? Is the site free of evidence of short-circuiting? Is scum removal adequate? Is the site free of excessive floating sludge? Is the drive unit operational? Is the return rate acceptable (low turbulence)? Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately Y, of the sidewall depth) Yes No NA NE M ❑ ❑ ❑ ❑ ❑ ❑ M ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: There is vegetation growing in the center and of the driver of one of the clarifiers of the facility. This vegetation needs to be removed in a safe and effective manner that does not violate the permit. Please review permit Condition 2 in Section C in part II "Standard Conditions for NPDES Permits". Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑ Are all pumps present? N ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? ❑ ❑ ❑ Is SCADA telemetry available and operational? ❑ ❑ ❑ Is audible and visual alarm available and operational? ❑ ❑ ❑ Comment Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? M ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ ❑ Comment: Effluent flowmeter was calibrated on 2/18/2020 Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ 0 ❑ ❑ Page# 7 Permit: NCO021849 Owner -Facility: Hertford WWTP Inspection Date: 08/19/2020 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is sample collected below all treatment units? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? E ❑ ❑ ❑ # 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: Effluent sampler is time proportional. A sample is obtained every 15 minutes. The temperature was measured at 4 degrees Celsius for the influent sampler. Disinfection -Gas Yes No NA NE Are cylinders secured adequately? 0 ❑ ❑ ❑ Are cylinders protected from direct sunlight? 0 ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? ❑ 0 ❑ ❑ Is there chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ E ❑ ❑ If yes, then is there a Risk Management Plan on site? ❑ ❑ ❑ If yes, then what is the EPA twelve digit ID Number? (1000-= _) If yes, then when was the RMP last updated? Comment: A small ammount of sludge was in in the conatct chamber. De -chlorination Yes No NA NE Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ ❑ 0 Is storage appropriate for cylinders? ❑ 1111 # Is de -chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑ Comment: Are the tablets the proper size and type? ❑ ❑ ❑ ■ Are tablet de -chlorinators operational? ❑ ❑ ❑ Number of tubes in use? Comment: Page# 8