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HomeMy WebLinkAboutwq0033770_Inspection_20190829 (2)ROY COOPER coo eml K41CHAEL S. REGAN Rre f rry LINDA CULPEPPER Da for Michael J Myers Old North State Water Company LLC 4700 Homewood Ct Ste 108 Raleigh, NC 27609 d � NORTH CAROLINA Environmental Quality October 04, 2019 SUBJECT: Compliance Inspection Report Carolina Plantation WWTP Non -discharge Permit No. WQ0033770 Onslow County Dear Permittee: The North Carolina Division of Water Resources conducted an inspection of the Carolina Plantation WWTP on 8/29/2019. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in Non -discharge Permit No. WQ0033770. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". Please read the CIR in its entirety to address any issues noted. The facility is marginally compliant with permit conditions. 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: • Headworks: The current configuration of the headworks is problematic since the bar screen is located after the equalization basin. Wastewater flow is pumped from the influent pump station to the equalization basin and then to the bar screen. This requires daily scrapping of the bar screen, constant cleaning of the EQ basin, and potential escape of solids to the clarifier. The installation of the static fine screen with auger and dewatering press is still pending (also listed as pending in the September 2017 Inspection Report). • Effluent Parameters (PI 001): WiRO performed a file review for the period 2016-2019. Except for flow through the facility, the plant has been in compliance with the permit parameters. Regarding flow violations, the facility exceeded the monthly average flow in June and July 2019 (168,964 and 151,185.61 gpd, respectively). The average flow from January through July is 96% of the permitted flow of 150,000 gpd for Phase I. In 2016, 2017, and 2018, the average calendar year flow was 88, 83, and 89% of the permitted flow. Given these increasing flows, the DWR requests a report with the status of the plans for expansion and a timeframe for execution. North CarowtsDepartmentof Environrnerta 'Qua.fty I D vsor of Water ReeoLmes Wilm:ngGon Regow; Office 1 127 Cardira. ❑nva Extervson I V.:.mxgtan, North Cara::rs 28405 4310-7E6-7215 • Infiltration Basins: The banks of the infiltration basin need maintenance: de -weeding and repairing areas that are showing signs of erosion. • GW Lowering System (PPI 002): Fecal coliform counts at the GW lowering system pump station are high. In April, May, and Jun 2019 the FC counts were 291, 6706, and 157 col/100 ml, respectively (WiRO acknowledges that there are no effluent limits at PPI 002). Given these high fecal coliform values, the DWR requests taking measures (i.e. verify stormwater ponding at the entrance of the pump station, disinfection, etc.) for the water quality protection of the two amenities ponds that receive water from the GW lowering system that discharge into a man-made ditch, and ultimately to Half Moon Creek. • GW level monitoring (piezometer reporting): Continue monitoring as indicated in the permit. To reduce reporting, the WiRO suggests providing water level records three times a year, when sampling/reporting the rest of the parameters. If you should have any questions, please do not hesitate to contact Morella Sanchez -King with the Water Quality Regional Operations Section in the Wilmington Regional Office at 910-796-7215 or via email at morella.sanchez-king@ncdenr.gov. ATTACHMENTS Uploaded to Laserfiche Sincerely, DocuSigned by: dot bVti ((a S� 6" E3ABA14AC7DC434... Morella Sanchez -King, Regional Supervisor Water Quality Regional Operations Section Wilmington Regional Office Division of Water Resources, NCDEQ North CarodnaDepartmentofEnvironlnentalQaa:§y I D.vsor,ofWater ResoLres Wilm:ngGon Regow; Office 1 127 Cardimi Dr-ve Extervson I V.::mxgtan, North; sra::rs 78405 910-796-7215 Compliance Inspection Report Permit: WQ0033770 Effective: 01/01/17 Expiration: 12/31/21 Owner: Old North State Water Company LLC SOC: Effective: Expiration: Facility: Carolina Plantation WWTP County: Onslow Oldtowne St Region: Wilmington Jacksonville NC 28546 Contact Person: Michael J Myers Title: Phone: 252-235-4900 Directions to Facility: Traveling north on Ramsey Rd. (SR 1324), entance to the site is the first road on the right past (north of) Carolina Elementary school, which is on the left. System Classifications: WW3, Primary ORC: Certification: Phone: Secondary ORC(s): On -Site Representative(s): Related Permits: Inspection Date: 08/29/2019 EntryTime: 11 A5AM Primary Inspector: Morelia Sanchez -King Secondary Inspector(s): Bryan Lievre Reason for Inspection: Routine Permit Inspection Type: High Rate Infiltration Facility Status: Compliant ❑ Not Compliant Question Areas: Treatment Flow Measurement -Effluent Treatment Flow Measurement -Influent Treatment Flow Measurement -Water Treatment Use Records Treatment Filters Record Keeping Treatment Sludge Storage/Treatment Treatment Influent Pump Station Treatment Disinfection End Use -Infiltration Treatment Return pumps Storage Wells (See attachment summary) Exit Time: 01:OOPM Phone: 910-796-7218 Inspection Type: Compliance Evaluation Miscellaneous Questions Treatment Barscreen Treatment Activated Sludge Treatment Clarifiers Treatment Flow Measurement Standby Power Page 1 of 8 Permit: WQ0033770 Owner - Facility: Old North State Water Company LLC Inspection Date: 08/29/2019 Inspection Type : Compliance Evaluation Reason for Visit: Routine Inspection Summary: A site inspection on August 29, 2019 and a file review were performed to verify if the facility was in compliance with the conditions specified in permit WQ0033770. The following personnel were present during the site inspection: (1) for the permittee: Chuck Donnel and Jeff Jarman, (2) for the DWR/ WiRO: Morella Sanchez King and Bryan Lievre. The Division of Water Resources appreciates Mr. Donnel and Mr. Jarman for the assistance provided during the inspection. Please review each section of the report. The following items need attention and a response: 1) Site Inspection Headworks: The current configuration of the headworks is problematic since the bar screen is located after the equalization basin. Wastewater flow is pumped from the influent pump station to the equalization basin and then to the bar screen. This requires daily scrapping of the bar screen, constant cleaning of the EQ basin, and potential escape of solids to the clarifier. The installation of the static fine screen with auger and dewatering press is still pending (also listed as pending in the September 2017 Inspection Report). Infiltration Basins: The banks of the infiltration basin need maintenance: de -weeding and repairing areas that are showing signs of erosion. 2) File Review Effluent Parameters (PI 001): WiRO performed a file review for the period 2016-2019. Except for flow through the facility, the plant has been in compliance with the permit parameters. Reporting errors have been corrected. Regarding flow violations, the facility exceeded the monthly average flow in June and July 2019 (168,964 and 151,185.61 gpd, respectively). The average flow from January through July is 96% of the permitted flow of 150,000 gpd for Phase I. In 2016, 2017, and 2018, the average calendar year flow was 88, 83, and 89% of the permitted flow. Given these increasing flows, the DWR requests a report with the status of the plans for expansion and a timeframe for execution. GW Lowering System (PPI 002): Fecal coliform counts at the GW lowering system pump station are high. In April, May, and Jun 2019 the FC counts were 291, 6706, and 157 col/100 ml, respectively (WiRO acknowledges that there are no effluent limits at PPI 002). Given these high fecal coliform values, the DWR requests taking measures (i.e. verify stormwater ponding at the entrance of the pump station, disinfection, etc.) for the water quality protection of the two amenities ponds that receive water from the GW lowering system that discharge into a man-made ditch, and ultimately to Half Moon Creek. GW59: Groundwater monitoring: Except for sporadic TDS exceedances, all parameters are below the permitted limits. GW level monitoring (piezometer reporting): Continue monitoring as indicated in the permit. To reduce reporting, the WiRO suggests providing water level records three times a year, when sampling/reporting the rest of the parameters. Page 2 of 8 Permit: WQ0033770 Inspection Date: 08/29/2019 Owner - Facility: Old North State Water Company LLC Inspection Type : Compliance Evaluation Reason for Visit: Routine Type Yes No NA NE Single Family Drip ❑ Activated Sludge Spray, LR ❑ Lagoon Spray, LR ❑ Recycle/Reuse ❑ Activated Sludge Spray, HR ❑ Reuse (Quality) ❑ Activated Sludge Drip, LR ❑ Single Family Spray, LR ❑ Infiltration System Treatment Yes No NA NE Are Treatment facilities consistent with those outlined in the current permit? ❑ 0 ❑ ❑ Do all treatment units appear to be operational? (if no, note below.) 0 ❑ ❑ ❑ Comment: Headworks: As indicated in the September 6, 2017 inspection report, the static fine screen with an auger and dewatering press assembly has not been installed. Infiltration basins: There are 3 basins in operation, out of the 4 infiltration basins described in the permit. It seems that the other IB would be available, if needed. Treatment Influent Pump Station Is the pump station free of bypass lines or structures? Is the general housekeeping acceptable? Are all pumps present? Are all pumps operable? Are floats/controls operable? Are audio and visual alarms available? Are audio and visual alarms operational? # Are SCADA/Telemetry alarms required? Are SCADA/Telemetry available? Are SCADA/Telemetry operational? Comment: This is a duplex system which looked well maintained on inspection day. Audio and visual alarms worked when a high water event was simulated. The ORC received an alert phone message. Generator worked when tested. Treatment Flow Measurement -Influent Is flowmeter calibrated annually? Is flowmeter operating properly? Does flowmeter monitor continuously? Yes No NA NE ■❑❑❑ ■❑❑❑ ■❑❑❑ ■❑❑❑ ■❑❑❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■❑❑❑ Yes No NA NE ❑❑■❑ ❑❑■❑ ❑❑■❑ Page 3 of 8 Permit: WQ0033770 Owner - Facility: Old North State Water Company LLC Inspection Date: 08/29/2019 Inspection Type : Compliance Evaluation Reason for Visit: Routine Does flowmeter record flow? ❑ ❑ 0 ❑ Does flowmeter appear to monitor accurately? ❑ ❑ 0 ❑ Comment: Treatment Flow Measurement -Water Use Records Yes No NA NE Is water use metered? ❑ ❑ 0 ❑ Are the daily average values properly calculated? ❑ ❑ 0 ❑ Comment: Treatment Flow Measurement -Effluent Yes No NA NE Is flowmeter calibrated annually? 0 ❑ ❑ ❑ Is flowmeter operating properly? 0 ❑ ❑ ❑ Does flowmeter monitor continuously? 0 ❑ ❑ ❑ Does flowmeter record flow? 0 ❑ ❑ ❑ Does flowmeter appear to monitor accurately? 0 ❑ ❑ ❑ Comment: Delta Svstems calibrated all the facilitv's meters (Mav 2019). On inspection day. the averaae flow through the plant was 140,000 gpd. The permitted flow is 150,000 gpd. Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Is generator tested weekly by interrupting primary power source? 0 ❑ ❑ ❑ Is generator operable? 0 ❑ ❑ ❑ Does generator have adequate fuel? 0 ❑ ❑ ❑ Comment: The generator is exercised every Tuesday. On inspection dav, the genartor responded immediately when activated. Treatment Barscreen Yes No NA NE Is it free of excessive debris? ❑ 0 ❑ ❑ Is disposal of screenings in compliance? ❑ ❑ ❑ Are the bars spaced properly? ❑ ❑ ❑ Is the unit in good condition? ❑ 0 ❑ ❑ Comment: The headworks needs constant cleaning to be free of debris and avoid passing solids. The current confiauration of the headworks is Droblematic since the bar screen is located after the equalization basin. Wastewater flow is pumped from the influent pump station to the equalization basin and then to the bar screen. This requires daily scrapping of the bar screen, constant cleaning of the EQ basin, and potential escape of solids to the clarifier. The installation of the static fine screen with auaer and dewaterina press is still pendina (also listed in the September 2017 Inspection Report Treatment Activated Sludge Is the aeration mechanism operable? Yes No NA NE ■❑❑❑ Page 4 of 8 Permit: WQ0033770 Owner - Facility: Old North State Water Company LLC Inspection Date: 08/29/2019 Inspection Type : Compliance Evaluation Reason for Visit: Routine Is the aeration basin thoroughly mixed? 0 ❑ ❑ ❑ Is the aeration equipment easily accessed? 0 ❑ ❑ ❑ Is Dissolved Oxygen adequate? ❑ ❑ ❑ Are Settleometer results acceptable? ❑ ❑ ❑ Is activated sludge an acceptable color? 0 ❑ ❑ ❑ Comment: The aeration basin looked well mixed. It receives 3 return flows: RAS from the clarifier, flow from the post anoxic tank, and flow from the skimmers. Typically, MLSS is in average 3000 mg/1 and DO — 2-3 mg/I. Treatment Clarifiers Yes No NA NE Are the weirs level? ❑ ❑ ❑ Are the weirs free of solids and algae? ❑ 0 ❑ ❑ Is the scum removal system operational? 0 ❑ ❑ ❑ Is the scum removal system accessible? ❑ ❑ ❑ Is the sludge blanket at an acceptable level? 0 ❑ ❑ ❑ Is the effluent from the clarifier free of excessive solids? 0 ❑ ❑ ❑ Comment: The clarifiers need constant maintenance. There were some solids in the surface of the clarifier and accumulated algae in the weirs. The headworks' upgrade would help the clarifier operational conditions. Treatment Return pumps Yes No NA NE Are they in place? 0 ❑ ❑ ❑ Are they operational? 0 ❑ ❑ ❑ Comment: Pumps are working properly. Treatment Filters Yes No NA NE Is the filter media present? ❑ ❑ ❑ Is the filter media the correct size and type? ❑ ❑ ❑ Is the air scour operational? 0 ❑ ❑ ❑ Is the scouring acceptable? 0 ❑ ❑ ❑ Is the clear well free of excessive solids? ❑ ❑ ❑ Is the mud well free of excessive solids and filter media? ❑ ❑ ❑ Does backwashing frequency appear adequate? ❑ ❑ ❑ Comment Treatment Sludge Storage/Treatment Yes No NA NE Is the aeration operational? 0 ❑ ❑ ❑ Is the aeration pattern even? 0 ❑ ❑ ❑ If required, are Sanitary "Ts" present in tankage? ❑ ❑ 0 ❑ Comment: Lewis Farm handles the sludge from this facility. Page 5 of 8 Permit: WQ0033770 Owner - Facility: Old North State Water Company LLC Inspection Date: 08/29/2019 Inspection Type : Compliance Evaluation Reason for Visit: Routine Treatment Disinfection Yes No NA NE Is the system working? 0 ❑ ❑ ❑ Do the fecal coliform results indicate proper disinfection? 0 ❑ ❑ ❑ Is there adequate detention time (-30 minutes)? ❑ ❑ ❑ Is the system properly maintained? ❑ ❑ ❑ If gas, does the cylinder storage appear safe? ❑ ❑ 0 ❑ Is the fan in the chlorine feed room and storage area operable? ❑ ❑ 0 ❑ Is the chlorinator accessible? 0 ❑ ❑ ❑ If tablets, are tablets present? 0 ❑ ❑ ❑ Are the tablets the proper size and type? ❑ ❑ ❑ Is contact chamber free of sludge, solids, and growth? ❑ ❑ ❑ If UV, are extra UV bulbs available? ❑ ❑ 0 ❑ If UV, is the UV intensity adequate? ❑ ❑ 0 ❑ # Is it a dual feed system? ❑ ❑ 0 ❑ Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ ❑ 0 ❑ 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: Disinfection treatment is adequate. There have not been fecal coliform exceedances in the PPI-001 for the period 2017-2019. The average coliform count for this period is —1.5 col/100 ml. Record Keeping Yes No NA NE Is a copy of current permit available? ❑ ❑ ❑ Are monitoring reports present: NDMR? 0 ❑ ❑ ❑ NDAR? 0 ❑ ❑ ❑ Are flow rates less than of permitted flow? ❑ 0 ❑ ❑ Are flow rates less than of permitted flow? ❑ 0 ❑ ❑ Are application rates adhered to? 0 ❑ ❑ ❑ Is GW monitoring being conducted, if required (GW-59s submitted)? 0 ❑ ❑ ❑ Are all samples analyzed for all required parameters? 0 ❑ ❑ ❑ Are there any 2L GW quality violations? 0 ❑ ❑ ❑ Is GW-59A certification form completed for facility? ❑ ❑ ❑ Is effluent sampled for same parameters as GW? 0 ❑ ❑ ❑ Do effluent concentrations exceed GW standards? 0 ❑ ❑ ❑ Are annual soil reports available? ❑ ❑ 0 ❑ # Are PAN records required? ❑ ❑ 0 ❑ # Did last soil report indicate a need for lime? ❑ ❑ 0 ❑ Page 6 of 8 Permit: WQ0033770 Owner - Facility: Old North State Water Company LLC Inspection Date: 08/29/2019 Inspection Type : Compliance Evaluation Reason for Visit: Routine If so, has it been applied? ❑ ❑ 0 ❑ Are operational logs present? ❑ ❑ ❑ Are lab sheets available for review? 0 ❑ ❑ ❑ Do lab sheets support data reported on NDMR? 0 ❑ ❑ ❑ Do lab sheets support data reported on GW-59s? 0 ❑ ❑ ❑ Are Operational and Maintenance records present? ❑ ❑ ❑ Were Operational and Maintenance records complete? ❑ ❑ ❑ Has permittee been free of public complaints in last 12 months? 0 ❑ ❑ ❑ Is a copy of the SOC readily available? ❑ ❑ 0 ❑ No treatment units bypassed since last inspection? 0 ❑ ❑ ❑ Comment: Flow (PPI-001): The permitted flow is 150,000 qpd (Phase 1). In 2019, The facility exceeded the monthly average flow in June (168,964 qpd) and July (151,185.61 qpd) the average flow from January- July is 96% of the permitted flow for Phase I. In 2016, 2017, and 2018, the average calendar year flow was 88, 83, and 89% of the permitted flow. Given these increasing flows, the DWR requests a report with plans for expansion and timeframe for execution. GW Monitoring (GW-59). Except for sporadic TDS exceedances, all parameters are below the permitted limits. GW level monitoring (piezometer reporting): continue monitoring as indicated in the permit, but provide records three times a year, when sampling/reporting the rest of the parameters. GW Lowering System (PPI 002): Fecal coliform counts at the GW lowering system pump station are high. In April, May, and Jun 2019 the FC counts were 291, 6706, and 157 col/100 ml, respectively (Refer to the Summary section for details). End Use -Infiltration Yes No NA NE # Is the application High Rate or Low Rate? High Rate Are buffers maintained? 0 ❑ ❑ ❑ Are any supply wells within the CB? ❑ 0 ❑ ❑ Are any supply wells within 250' of the CB? ❑ 0 ❑ ❑ Is municipal water available in the area? 0 ❑ ❑ ❑ Are GW monitoring wells required? 0 ❑ ❑ ❑ Are GW monitoring wells located properly w/ respect to RB and CB? 0 ❑ ❑ ❑ Are GW monitoring wells properly constructed, including screened interval? ❑ ❑ ❑ Is a usable green area maintained? 0 ❑ ❑ ❑ Is the disposal site acceptable? 0 ❑ ❑ ❑ Is the distribution equipment acceptable? ❑ ❑ ❑ Is the disposal site free of ponding? 0 ❑ ❑ ❑ Is the disposal site free of breakout? 0 ❑ ❑ ❑ Are the disposal sites free of solids, algae, etc.? 0 ❑ ❑ ❑ Do the records show that the fields are properly maintained? 0 ❑ ❑ ❑ Page 7 of 8 Permit: WQ0033770 Owner - Facility: Old North State Water Company LLC Inspection Date: 08/29/2019 Inspection Type : Compliance Evaluation Reason for Visit: Routine Are the disposal sites free of vegetation? ❑ 0 ❑ ❑ Do any surface water features appear to be adversely impacted by GW discharge? 0 ❑ ❑ ❑ No chemicals or rototiller used to eliminate vegetation, solids, algae, etc.? M ❑ ❑ ❑ Comment: The infiltration basins need maintenance (weed clearing, control erosion in the banks). For freeboard recording, new staff gauges have been ordered to replace the existinq PVC pipes. Surface water Drotection: Given the hiah fecal coliform values from PPI 002 (GW Lowerin System), the DWR requests taking measures (i.e. verifv stormwater pondina at the entrance of the pump station, disinfection, etc.) for the water quality protection of the two amenities ponds that receive water from the GW lowerina system. discharae into a man-made ditch. and ultimately to Half Moon Creek Page 8 of 8