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Home My WebLink AboutNC0020427_Inspection_20070820• O WATT Q: QG i • August 20, 2007 Mr. Monty Crump, City Manager City of Rockingham 514 Rockingham Road Rockingham, North Carolina 28379 Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality SUBJECT: August 14, 2007 Compliance Evaluation Inspection City of Rockingham City of Rockingham WWTP Richmond County Dear Mr. Crump: Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on August 14, 2007.. The cooperation of Larry Cobler, Grade IV ORC, was greatly appreciated. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Chemist, of the Fayetteville Regional Office. The facility was found to' be in Compliance with permit NC0020427. As a reminder, preservation of the Waters of the State can only be achieved through consistent NPDES Permit compliance. COMMENTS • The wastewater plant was clean and neat in appearance at the time of the inspection. • The DMR's for the months of March and June 2007 were compared to the laboratory bench sheets and appeared to be in order at the time of the inspection. • Two new 600,000 gallon_ aerobic. digesters and a new step bar screen have been placed in service sincethe last inspection that occurred in June 2006. . • The Fayetteville Regional Office of the Division of Water Quality strongly encourages all facilities to; maintain less than 12 inches of solids in the chlorine contact chamber. A spot check of the facility's chlorine chambers revealed a small amount of sludge. Mr. Cobler stated that the contact chamber is cleaned about once a month but it is not recorded in the maintenance file. It .is strongly recommended that all maintenance activities be written in the maintenance logbook. North Carolina Naturally North Carolina Division of Water Quality 225 Green Street -Suite 714 Fayetteville, NC 28301 Phone (910) 486-1541 Customer Service Internet: www.ncwaterquality.org Fax (910) 486-0707 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have any questions, please call me at 910-433-3300. Sincerely,, - eett Mark Brantley Environmental Chemist Surface Water Protection Section Fayetteville Regional Office Cc: Larry Cobler, ORC Central Files Fayetteville Files KMB/kmb United States Environmental Protection Agency E PAWashington, D.C. 20460 C Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection 1 I NI'•2 151 31 N00020427 1 11 121 07/08/14 1 17 Type Inspector Fac Type 181 c1 191 s1 201 1. LI I I .III I I I I I I I I I I-166 Remarks 2111 I I I l 1.1 I I I I I I I I I I 1 I I I I II I I I I I I Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 67,1 169 701 31Li 711 NI ' 721 NI 731 1 174 751 I 1 I 1 I I 1 80 Section B: Facility Data - Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Rockingham'WWTP River Rd Rockingham NC 28379 Entry Time/Date 08:30,AM 07/08/14 Permit Effective Date 04/06/01 Exit-Time/Date 12:00 PM 07/08/14 Permit Expiration Date 09/02/28 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s). /// Larry D Cobler/ORC/910-895-9434/ Other Facility Data • Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Monty R Crump,311 E Franklin St .Rockingham NC 28379/City Manager/910-895-9088/9109976617 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement • Operations & Maintenance • Records/Reports • Self-Monitoring.Program Sludge Handling Disposal R Facility Site Review , Compliance Schedules 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 Mark Brantley FRO WQ//910-433-3300 Ext.727/ /7444. 444i-t,i Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Belinda S Henson " uncl'° J, 9j4,i FRO WQ//910-433-33b0 Ext.726/ Y-- 2! - V '7 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 31 NPDES NC0020427 111 121 yr/mo/day 07/08/14 Inspection Type 117 18I C (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) COMMENTS • The wastewater plant was clean and neat in appearance at the time of the inspection. • The DMR's for the months of March and June 2007 were compared to the laboratory bench sheets and appeared to be in order at thetime of the inspection. • Two new 600,000 gallon aerobic digesters and a new step bar screen have been placed in service since the last inspection that occurred in June 2006. • The Fayetteville Regional Office of the Division of Water Quality strongly encourages all facilities to maintain less than 12 inches of solids in the chlorine contact chamber. A spot check of the facility's chlorine chambers revealed a small amount of sludge. Mr. Cobler stated. that the contact chamber is cleaned about once a month but it is not recorded in the maintenance file. It is strongly recommended that all maintenance activities be written in the maintenance - logbook. Page # 2 Permit: NC0020427 Owner - Facility: Rockingham WJVfP Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Compliance Schedules Yes No NA NE Is there a compliance schedule for this facility? n n ■ n Is the facility compliant with the permit and conditions for the review period? • Comment: Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ■ R. n n • Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge • n n n Judge, and other that are applicable? Comment: Facility analyzes MLSS, pH, dissolved oxygen levels, and sludge blankets .. as process controls. Permit (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? # Are there any special conditions for the permit? Is access to the plant site restricted to the general public? Is the inspector granted access to all areas for inspection? 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 Transported COCs Are DMRs complete: do they include all permit parameters? Has the facility submitted its annual compliancereport 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? Yes No NA NE ❑ n®n ■ nnn n n1n ■ rinn ■ nnn. Yes No NA NE ■rinn ■ nnn ■ nnn ■ nnn ■ nnn ■ ■ ■ ■ nnn ■ nnn n n■n Page # 3 Permit: NC0020427 Owner - Facility: Rockingham WWTP Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Record Keeping 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: Tommy Campbell is the back-up ORC and is a grade III operator. Effluent Pipe Is right of way to the outfall properly maintained? Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? Comment: Flow Measurement - Influent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Comment: Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Comment: Aerobic Digester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? # Is tankage available for properly waste sludge? Comment: This facility has two new 600,000 gallon aerobic digestors in service. Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn nn■n Yes No NA NE ■ nnn ■ ann ■ nnn nn■n. Yes No NA NE neon ■ nnn ■ nnn nn■n Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn Page # 4 Permit: NC0020427 Owner - Facility: Rockingham VWVTP Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Solids Handling Equipment Yes No NA NE Is the equipmentoperational? •nn Is the chemical feed equipment operational?, ■ r1 rl ❑ Is storage adequate? ■ ❑ ❑ ❑ Is the site free of high level of solids in filtrate from filter presses or vacuum filters? ■ ❑ 0 ❑ Is the site free of sludge buildup on belts and/or rollers of filter press? • Is the site free of excessive moisture in belt filter press sludge cake? ■ ❑ ❑ ❑ . The facility has an approved sludge management plan? ■ El ❑ ❑ Comment: Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? ■ ❑ ❑ ❑ Are all pumps present? • ❑ ❑ ❑ Are all pumps operable? ❑ • ❑ ❑ Are float controls operable? ■ ❑ ❑ ❑ Is SCADA telemetry available and operational? ❑ ❑ ■ ❑ Is audible and visual alarm available and operational? ❑ ❑ ■ ❑ Comment: Facility is currently replacing one of the variable speed pumps. Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? ■ ❑ ❑ n Is the wet well free of excessive grease? a ❑ ❑ ❑ Are all pumps present? ■ Finn Are all pumps operable? ■ ❑ ❑El Are float controls operable? • ❑ ❑ ❑ Is SCADA telemetry available and -operational? ■ ❑ ❑ 0 Is audible and visual alarm available and operational? ❑ ❑ ■ Comment: Bar Screens Yes No NA NE Type of bar screen a.Manual ❑ b.Mechanical ■ Are the bars adequately screening debris? ■ ❑ ❑ ❑ Page # 5 Permit: NC0020427 Owner - Facility: Rockingham VVVVTP Inspection Date:08/14/2007 Inspection Type: Compliance Evaluation Bar Screens • Is the screen free of excessive debris? Is disposal of screening in compliance? Is the unit in good condition? Comment: This facility has a new step bar screen in service. 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'/4 of the sidewall depth) Comment: There was 4 feet of sludge in clarifiers 1, and 2 at the time of the inspection. The number 3 clarifier was down for annual maintenance at the time of the inspection. Trickling Filter Is the filter free of ponding? Is the filter free of leaks at the center column of filter's distribution arms? Is the distribution of flow even from the distribution arms? Is the filter free of uneven or discolored growth? Is the filter free of sloughing of excessive growth? Are the filters distribution arms orifices free of clogging? Is the filter free of excessive filter flies, worms or snails? Comment: Primary Clarifier Is the clarifier free of black and odorous wastewater? Yes No NA NE ■ nnn ■ n.nn ■ nnn Yes No NA NE ■ nnn ▪ nnn ■ nnn ■ 1nnn ■ nnn' ■ nnn: ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn' ■ nnn Yes No NA NE ■ nnn Page # 6 Permit: NC0020427 Owner - Facility: Rockingham WWTP Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Primary Clarifier 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 sludge blanket level acceptable? Is the sludge blanket level acceptable? (Approximately %4 of the sidewall depth) Comment: Sludge blankets were approximately 1' in all sections of the primary clarifier. Aeration Basins Mode of operation Type of aeration system Is the basin free of dead spots? Are surface aerators and mixers operational? Are the diffusers operational? Is the foam the proper color for the treatment process? Does the foam cover less than 25% of the basin's surface? Is the DO level acceptable? Is the DO level acceptable?(1.0 to 3.0 mg/I) Comment: The dissolved oxygen level was 1.9 mg/I on the morning of the inspection. Disinfection -Gas Are cylinders secured adequately? Are cylinders protected from direct sunlight? Is there adequate reserve supply of disinfectant? Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de -chlorination? Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)? Yes No NA NE ■ nnn ■ nnn ■ nnn ■ n-nn ▪ nnn •nnn ■ nnn ▪ nn.n ■ nnn Yes No NA NE Ext. Air Surface ■ nnn ■ nnn nn■n ■ nnn ■ nnn ■ nnn. ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn En El nn■n Page # 7 Permit:. NC0020427 Owner- Facility: Rockingham WWTP Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Disinfection -Gas 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: De -chlorination Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? Is storage appropriate for cylinders? # Is de -chlorination substance stored away from chlorine containers? Comment: Are the tablets the proper size and type? Are tablet de -chlorinators operational? • Number of tubes 'in use? Comment: Standby Power Is automatically activated standby 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: The generator does not operate the effluent pump station. If the pump station was to fail the effluent would flow in Hitchcock Creek. Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: Laboratory Yes No NA NE n n■n. Yes No NA NE Gas ®nnn . nnn ■ nnn n n■n n n ■ n Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn n ■nn n nn■ o nnn Yes No NA NE ■ nnn • nnn ■ nnn Yes No NA NE Page # 8 Permit: NC0020427 Owner - Facility: Rockingham wwTP Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? • ❑ n ❑ Are all other parameters(excluding field parameters) performed by a certified lab? . ■ ❑ ❑ n # Is the facility using a contract lab? ■ n n ❑ Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? ❑ n ■ El Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? n. n ■ n Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ ■ ❑ Comment: The onsite lab performs TSS and the field parameters: MicroBac labs performs the rest of the parameters. Influent Sampling Yes No NA NE # Is composite sampling flow proportional? n n ■ ❑ Is sample collected above side streams? ■ n n n Is proper volume collected? ■ n n ❑ Is the tubing clean? • ❑ n ❑ Is' proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? ■ n n ❑ Is sampling performed according to the permit? ■ ❑ n Comment:. At the time of the inspection the influent sampler thermometer was reading 2 degrees Celsius. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ■ ❑ ❑ ❑ Is sample collected below all treatment units? ■ n n ❑ Is proper volume collected? ■ n ❑ n Is the tubing clean? ■ n n n Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? ■ ❑ ❑ .n Is the facility sampling performed as required by the permit (frequency, sampling type representative)? • ❑ ❑ ❑ Comment: At the time of the inspection the effluent sampler was reading 2 degrees Celsius. Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ■ n ❑ n Comment: Facility is a member of the Yadkin-PeeDee River Basin Association. Grit Removal Yes No NA NE Type of grit removal Page # 9 Permit: NC0020427 Owner - Facility: Rockingham VWVTP. Inspection Date: 08/14/2007 Inspection Type: Compliance Evaluation Grit Removal Yes No NA NE a.Manual b.Mechanical ■ Is the grit free of excessive organic matter? ■ ❑ ❑ ❑ Is the grit free of excessive odor? ■ ❑ .❑ ❑ # Is disposal of grit in compliance? ■ ❑ ❑ El Comment: Page # 10 Regional Field Inspectors Check List for Field Parameters Name of site to be Inspected: Aa/(,'„g Aotiv) A,4. Date: 8 - / y -07 Field Certification # (if applicable),: / 7 s Inspector: h7, NPDES #: /VL Oo.20 L12 7 Region: r/1 I. Circle the parameter or parameters performed at this site. Residual Chlorine Settleable Solids, al, DQ, Conductivity, Iena e at„re II. Instrumentation: A. Does the facility have the equipment necessary to analyze field parameters as circled above: 1. A pH meter AR i ',s .Gr • 2. A Residual Chlorine meter Oj?.3100 3. DO meter y3J SS-v,t/. 4. A Cone for settleable solids No No res No No 5. A thermometer or meter that measures temperature No y.sT r ry 6. Conductivity meter - es Nis III. Calibration/Analysis: 1. Is the pH meter calibrated with a 2 buffers and checked with a third buffer each day of use? 2. For Total Residual Chlorine, is a check standard analyzed each day of use? 3. Is the air calibration of the DO meter performed each day of use? 4. For,Settleable Solids, is 1 liter of sample settled for 1 hour? --Yes 5. Is the temperature measuring device calibrated annually against a certified thermometer? 6. For Conductivity, is a calibration standard analyzed each day of use? No No to ' ' 'IV. Documentation: 1. Is the date and time that the sample was collected documented. Ye No 2. Is the sample site documented? es No 3. Is the sample collector documented? No 4. Is the analysis date and time documented? es No 5. Did the analyst sign the documentation? es No 6. Is record of calibration documented? No 7. For Settleable Solids, is sample volume and 1 hour time settling time documented? des. Nu 8. For Temperature, is the annual calibration of the measuring device documented Arcs N Comments: Please submit a copy of this completed form to the Laboratory Certification Program. DWQ Lab Certification Chemistry Lab Courier # 52-01-01 FIELD INSPECTOR CHECKLIST REV. 02/14/2007