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Home My WebLink AboutWQ0032515_Compliance Evaluation Inspection_20190927ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Director NORTH CAROLINA Environmental Quality September 27, 2019 Mr. Donald Greeley — Director Water Management City of Durham 101 City Hall Plaza Durham, North Carolina 27701 Subject: Compliance Inspection Permit No.WQ0032515 North Durham Water Reclamation Facility Durham County Dear Mr. Greeley, Staff of the Division of Water Resources (DWR), Water Quality Regional Operations Section (WQROS), Raleigh Regional Office (RRO) inspected the Durham Water Reclamation Facility on September 26, 2019. The purpose of this visit was to conduct a compliance inspection to evaluate the reclaimed water program under WQ0032515. John Dodson assisted during this inspection. The current permit which was issued March 7, 2008 and expires November 30, 2016 was reviewed. There have been no violations since the last inspection. The site currently uses Sodium Hypochlorite added to the reclaimed water pump at delivery as UV disinfection system for NPDES discharge flows is after reclaimed water pumps. An in -line chlorine monitor is in use. A chlorine residual of 1ppm is maintained. Reclaimed water is distributed to reclaimed system via 2 pumps with pressure maintained at 80 psi. Pressure relief is released back to filter well for discharge under NPDES permit. Approximately 200,000 gallons/day of reclaimed water is used on site for equipment washing, seal water, odor control make-up, firefighting. Zero to 6000 gpd is distributed from the bulk distribution station. A flow meter is installed near the bulk loading station. The meter was calibrated per permit requirements. Turbidity and chlorine are recorded as water is pumped to tankers. All reclaimed water system components are properly color coded. All Ioading records are appropriately maintained. Operations and Maintenance records are maintained on site computer system. These records are compliant with the permit requirements. North Carolina Department of Environmental Quality Division of Water Resources e�:i�D_EQ Raleigh Rcginnal Office 1 38001iarretl Drive I Raleigh, North Carolina 27609 wlumwM.flrvnomwn7tl sui7\ /— 010 701 .1 Ine) Training records for all users are maintained on -site and users are issued cards verifying training. All required analyses are performed and properly reported. The current reclaimed water treatment components as well as management practices were found to be compliant with permit conditions. Please refer to the attached inspection report. If you have any questions or would like technical assistance, please contact me via email at ray.milosh@ncdenr.gov or at (919) 791-4240. Sincerely, Ra� Milosh Environmental Specialist ray.milosh@ncdenr.gov Attachment: Inspection Report cc: RRO-WQROS Files Water Quality Section Central Files Compliance Inspection Report Permit: WQ0032515 Effective: 12/28/16 Expiration: 11/30/21 Owner: City of Durham SOC: Effective: Expiration: Facility: North Durham WRF County: Durham 1900 E Club Blvd Region: Raleigh Durham NC 27704 Contact Person: John Dodson Title; Phone: 919-560-4384 Directions to Facility: Get on 1-440W. Take US-7OW to E Club Blvd in Oak Grove. Take exit 179 from 1-85NlUS15N. Sharp L onto E Club Blvd, System Classifications: SINC, Primary ORC: Certification: Phone: Secondary ORC(s): On-Slte Representative(s): Related Permits: NC0023841 City of Durham - North Durham WRF Inspection Date: 09/26/2019 Entry Time: 02 OOPM Primary Inspector: Raymond M M lush Secondary Inspector(s): Reason for Inspection: Routine Permit Inspection Type: Reclaimed Water Facility Status: Compliant Not Compliant Question Areas: Miscellaneous Questions Record Keeping End Use -Reuse (See attachment summary) Exit Time: 03 OOPM Phone: 919-7914200 Inspection Type: Compliance Evaluation Treatment Disinfection Page 1 of 5 Permit; W00032515 Owner -Facility: City cfDurham inspection Date: 0912W2019 Inspection Type • Compliance Evaluation Reason for Visit: Routine Inspection Summary: Staff of the Division of Water Resources (DWR), Water Quality Regional Operations Section (WQROS}. Raleigh Regional Office (RRO) inspected the Durham Water Reclamation Facility on September 26. 2019. The purpose of this visit was to conduct a compliance inspection to evaluate the reclaimed water program under W00032515. John Dodson assisted during this inspection. The current permit which was issued March 7, 2008 and expires November 30 2016 was reviewed. There have been no violations since the last inspection. The site currently uses Sodium Hypochlorite added to the reclaimed water pump at delivery as UV dis.nfection system for NPDES discharge flows is after reclaimed water pumps. An in -line chlorine monitor is in use. A chlor ne residual of 1ppm is maintained. Reclaimed water is distributed to reclaimed system via 2 pumps with pressure maintained at 80 psi. Pressure relief is released back to filter well for discharge under NPDES permit. Approximately 200 000 gallonstday of reclaimed water is used on site for equipment washing, seal water, odor control make-up, firefighting zero to 6000 gpd is distributed from the bulk distribution station. A flow meter is installed near the bulk loading station. The meter was calibrated per permit requirements. Turbidity and chlorine are recorded as water is pumped to tankers. All reclaimed water system components are properly color coded. All loading records are appropriately maintained. Operations and Maintenance records are maintained on site computer system. These records are compliant with the permit requirements. Training records for all users are maintained on -site and users are issued cards verifying training All required analyses are performed and properly reported. The current reclaimed water treatment components as well as management practices were found to be compliant with permit conditions. Page 2 of 5 Permit: VVO0032515 Owner - Facility: City of Durham Inspection Date: 09/26/2019 Inspection Type : Compliance Evaluation Reason for Visit: Rout ne Type Yes No NA NE Lagoon Spray, LR Single Family Spray, LR Activated Sludge Spray, LR Activated Sludge Spray, HR Activated Sludge Drip LR Recycle/Reuse ❑ Single Family Drip ❑ Infiltration System Reuse (Duality) ■ Treatment Disinfection Yes No NA NE Is the system working? ■ ❑ ❑ Do the fecal coliform results indicate proper disinfection? . Is there adequate detention time (-30 minutes)? ■ ❑ El El Is the system properly maintained? ❑ El If gas, does the cylinder storage appear safe? ■ Is the fan in the chlorine feed room and storage area operable? Is the chlorinator accessible? ■ If tablets are tablets present? . 11 Are the tablets the proper size and type? .El Is contact chamber free of sludge. solids. and growth? E If UV, are extra UV bulbs available? ❑ ❑ ■ If UV, is the UV intens.ty adequate? ❑ ❑ ■ # Is it a dual feed system? El 1:1 ■ 11 Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS N3. 7782-5G-5)7 ❑ 11 ■ ❑ 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 RNIP last updated? Comment. Record Keepin Yes No NA NE Is a copy of current permit available? ■ Are monitoring reports present NDMR? ■ El NDAR? . Are flow rates less than of permitted flow? ■ ❑ Are flaw rates less than of permitted flow? E3 E3 . El Page 3 of 5 Permit: W00032515 Owner - Facility: City of Durham Inspection Date: 04312612019 Inspection Type : Compliance Evaluation Reason for Visit: Routine Are application rates adhered to? ❑ ❑ E ❑ is GW monitoring being conducted, if required (GW-59s submitted)? ❑ ❑ E ❑ Are all samples analyzed for all required parameters? ❑ ❑ 0 ❑ Are there any 2L GW quality violations? ❑ ❑ N ❑ Is GW-59A certification form completed for facility? ❑ ❑ E ❑ Is effluent sampled for same parameters as GW? ❑ ❑ E ❑ Do effluent concentrations exceed GW standards? ❑ ❑ 0 ❑ Are annual soil reports available? ❑ ❑ E ❑ # Are PAN records required? ❑ ❑ E ❑ # Did last soil report indicate a need for lime? ❑ ❑ 0 ❑ If so, has it been applied? ❑ ❑ E ❑ Are operational logs present? 0 ❑ ❑ ❑ Are lab sheets available for review? ❑ ❑ N ❑ Do lab sheets support data reported on NDMR? ❑ ❑ N ❑ Do lab sheets support data reported on GW-59s? ❑ ❑ E ❑ Are Operational and Maintenance records present? S ❑ ❑ ❑ Were Operational and Maintenance records complete? 0 ❑ ❑ ❑ Has permittee been free of public complaints in last 12 months? 0 ❑ ❑ ❑ 1s a copy of the 50C readily available? ❑ ❑ E ❑ No treatment units bypassed since last inspection? N ❑ ❑ ❑ Comment: End Use -Reuse Yes No NA NE Is the acreage in the permit being utilized? E ❑ ❑ ❑ Does the acreage specified in the permit correspond to the measured acreage at the site? 0 ❑ ❑ ❑ Are all essential units provided in duplicate? ❑ ❑ ❑ Is an automatically activated standby power source available? ❑ Cl ❑ Is the equalization capacity adequate? E ❑ ❑ ❑ Is aerated flow equalization present? N ❑ ❑ ❑ Has the turbidity meter been calibrated in the last 12 months? 0 ❑ ❑ ❑ Does the turbidity meter have recording capabilities? ❑ ❑ N ❑ Is all flow diverted at the appropriate times? ❑ ❑ S ❑ Is all upset wastewater diverted from reuse storage unit? N ❑ ❑ ❑ Is all upset wastewater treated, retreated, or disposed of acceptably? 0 ❑ ❑ ❑ Is upset wastewater treated prior to discharge to irrigation storage? 0 ❑ ❑ ❑ Is public access restricted from irrigation area during active site use? ❑ ❑ N ❑ If golf course, is a sign posted in plaits sight on the club house? ❑ ❑ 0 ❑ Page 4 of 5 Permit: W00002515 Owner - Facility: City of Durham Inspection Date: 0912612019 Inspection Type : Compliance Evatuabon Is the cover crop acceptable? Are buffers adequate? Is the site tree of pondinglrunoff? Is the acreage in the permit being utilized? Is the application equipment acceptable? Is the application area free of limiting slopes? How close is the closest water supply well? Are any supply wells within the CB? Are any supply wells within 250' of the CB? Is municipal water available in the area? Are GW monitoring wells required? Are GW monitoring wells located properly wl respect to RB and CB? Are GW monitoring wells properly constructed, including screened interval? Comment: Reason for Visit: Route. Page 5 of 5