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Home My WebLink AboutNC0071200_Regional Office E-File Scan Up To 1/15/2021ATTACHMENT A Larry G Scott CASE NUMBER: LV-2005-0087 PERMIT: NCO069965 FACILITY: Scotty's Mobile Village COUNTY: McDowell REGION: Asheville Limit Violations MONITORING OUTFALL/ VIOLATION UNIT OF CALCULATED % OVER PENALTY REPORT PPI LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE LIMIT VIOLATION TYPE $250.00 8-2004 001 Effluent NH3-N 08/31/04 2 X month mg/I 8.5 11.7 37.65 Monthly Average Exceeded $100.00 8-2004 001 Effluent RES/TSS 08/31/04 Weekly mg/I 45 93.1 106.89 Daily Maximum Exceeded $250.00 8-2004 001 Effluent RES/TSS 08/31/04 Weekly mg/I 30 60.6 102.00 Monthly Average Exceeded 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 I NI 2 15I 31 NCO071200 111 121 06/07/12 117 181 DI 19I SI 201 I Remarks 211 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 116 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --------------------------- Reserved ---------------------- 67 I 169 70121 711 I 72 I N I 73I I 174 751 I I I I I I 180 I_I_I 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 permit Number) 11:00 AM 06/07/12 05/07/01 Catawba River WWTP Exit Time/Date Permit Expiration Date NCSR 1506 Marion NC 28752 12.00 PM 06/07/12 09/12/31 Name(s) of Onsite Rep resentative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Larry Dean Carver/ORC/828-652-8843/ Name, Address of Responsible Official/Title/Phone and Fax Number J Robert Boyette,PO Drawer 700 Marion NC 28752/City Contacted Manager/828-652-3551/8286521983 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Flow Measurement 0 Operations & Maintenance 0 Facility Site Review 0 Effluent/Receiving Waters 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 Roy M Davis ARO WQ//828-296-4500 Ext.4659/ Don Price ARO WQ//828-296-4500/ Starr Silvis ARO WQ//828-296-4500/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Roger C Edwards ARO WQ//828-296-4500/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES yr/mo/day Inspection Type 3I NCO071200 I11 12I 06/07/12 I17 181 n1 (cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The time and assistance of the ORC, Mr. Larry Carver, and his staff in conducting the Technical Assistance is appreciated. The Technical Assistance was conducted in response to NOV's the facility has received for BOD and TSS violations. After a review of the current facility size, layout, and loading characteristics it appears the facility is overloaded organically ( high Influent BOD's and TSS's ), compared to typical organic loads most package plants are designed to treat. Most typical package WWTP's are designed and set up to treat flows with organic loads ( BOD's & TSS's ) of between 180 mg/L to 300 mg/L respectively. The current flow to Marion's Catawba River WWTP reveals BOD's and TSS's of up to 664.7mg/L and 502.2 mg/L respectively. A waste stream with this high of a concentration could be better treated in the city's other WWTP, Corpening Creek. Corpening Creek WWTP is set up as a major WWTP with capabilities to handle this type of waste stream. It is suggested that City of Marion staff review the option of modifying the existing influent pump station and force main to send the Catawba River WWTP flow to the Corpening Creek WWTP. If this is not probable, then modifications to the current equalization, aeration system, and return/waste sludge system will be necessary to achieve and maintain compliance with the facility's NPDES permit. Page # 2 Permit: NCO071200 Inspection Date: 07/12/2006 Operations & Maintenance Owner - Facility: Catawba River WWTP Inspection Type: Technical Assistance Is the plant generally clean with acceptable housekeeping? ■ 0 0 0 Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ Judge, and other that are applicable? Comment: On -site measurements for Settleable Solids in both Aeration Basins revealed the following: AB - A 580 ml/L, AB - B 780 ml/L. Grease Removal Yes No NA NE # Is automatic grease removal present? fl ■ fl ❑ Is grease removal operating properly? ■ ❑ ❑ ❑ Comment: Facility does not have automatic grease removal. Facility consist of 2 Package WWTP's operating in parallel. These 2 plants handle the wastewater from over 30 commercial restraunts. The City of Marion has a good Fats, Oils, & Grease program that is addressed through their Wastewater Collection System permit. Review of Influent data from Jan. 2006 to May 2006, indicate BOD's of between 367.5 to 491.2 mg/L and TSS values of between 226.0 to 664.7 mg/L. It appears grease may be the cause of these high concentrations. Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? ■ n n n Is the wet well free of excessive grease? ■ n n n Are all pumps present? ■ n n n Are all pumps operable? ■ n n n Are float controls operable? ■ n n n Is SCADA telemetry available and operational? ■ n n n Is audible and visual alarm available and operational? ■ n n n Comment: Equalization Basins Yes No NA NE Is the basin aerated? ■ n n n Is the basin free of bypass lines or structures to the natural environment? ■ n n n Is the basin free of excessive grease? n ■ n n Are all pumps present? ■ n n n Are all pumps operable? ■ n n n Are float controls operable? ■ n n n Are audible and visual alarms operable? ■ n n n # Is basin size/volume adequate? n ■ n n Page # 3 Permit: NCO071200 Owner - Facility: Catawba River WWTP Inspection Date: 07/12/2006 Inspection Type: Technical Assistance Equalization Basins Yes No NA NE Comment: The current equalization basins are not sized to allow for a longer detention time of the waste stream. Influent BOD and TSS concentrations could be better treated if more time for treatment could be allowed. A short - term solution to the equalization basin issue, would be to install "insert -a -tee" type inverts with control valves into the EQ troughs to allow an adjusted flow to go to the aeration basins, and hopefully increase the time allowed for treatment in the system. Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? ■ n n n Is the site free of excessive buildup of solids in center well of circular clarifier? n n ■ n Are weirs level? ■ n n n Is the site free of weir blockage? ■ n n n Is the site free of evidence of short-circuiting? ■ n n n Is scum removal adequate? n ■ n n Is the site free of excessive floating sludge? ■ n n n Is the drive unit operational? n n ■ n Is the return rate acceptable (low turbulence)? ■ n n n Is the overflow clear of excessive solids/pin floc? ■ n n n Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) n ■ n n Comment: The current secondary clarifiers use "air-lift" return sludge pumps. Pipe size of the air-lift's is only 1 1/2" going into what appeared to be 4" return/waste sludge lines. The air-lift pumps pipe size should be increased to that of the return/waste sludge lines. This should allow for improved sludge removal and prevent the high sludge blankets that were observed during the Technical Assistance. Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused Is the basin free of dead spots? ■ n n n Are surface aerators and mixers operational? n n ■ n Are the diffusers operational? ■ n n n Is the foam the proper color for the treatment process? ■ n n n Does the foam cover less than 25% of the basin's surface? ■ n n n Is the DO level acceptable? n ■ n n Is the DO level acceptable?(1.0 to 3.0 mg/1) n ■ n n Page # 4 Permit: NCO071200 Owner - Facility: Catawba River WWTP Inspection Date: 07/12/2006 Inspection Type: Technical Assistance Aeration Basins Yes No NA NE Comment: Dissolved Oxygen measurements taken on both Aeration Basins were between 0.30 and 0.68 mg/L. This was due to the high organic load from the influent and the size of the current blowers. The ORC has the course bubble diffusers replaced with fine bubble diffusers to improve the oxygen transfer and mixing. Even with this modification, dissolve oxygen levels cannot get much above 1.0 mg/L, even during low flow periods of the day. The facility should review the necessary air requirements for this facility, it appears the facility needs addition aeration to handle both the return sludge needs and the aeration/mixing needs of the high influent concentrations. De -chlorination res NO NA N Type of system ? Tablet Is the feed ratio proportional to chlorine amount (1 to 1)? ■ rl fl Is storage appropriate for cylinders? rl ❑ ■ # Is de -chlorination substance stored away from chlorine containers? ■ ❑ ❑ ❑ Comment: Are the tablets the proper size and type? ■ n n n Are tablet de -chlorinators operational? ■ n n n Number of tubes in use? 2 Comment: Disinfection -Tablet Yes No NA NE Are tablet chlorinators operational? ■ n n n Are the tablets the proper size and type? ■ n n n Number of tubes in use? 2 Is the level of chlorine residual acceptable? n n n ■ Is the contact chamber free of growth, or sludge buildup? ■ n n n Is there chlorine residual prior to de -chlorination? n n n ■ Comment: Page # 5 4kO kit" -A�w'& jt.-wti 3. 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