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Home My WebLink AboutNC0030970_Inspection_20100315A4711 NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Governor Director March 15, 2010 Michael Uskiewicz, Town Manager Town of Spring Lake POBox617 Spring Lake, NC 28390 Subject: COMPLIANCE EVALUATION INSPECTION (CEI) Spring Lake Wastewater Treatment Plant NPDES Permit No. NC0030970 Cumberland County Dear Mr. Uskiewicz: Dee Freeman Secretary Enclosed you will find a copy of the follow-up Compliance Evaluation Inspection (CEI) report for the inspection that was conducted on March 1, 2010. As part of this inspection, a tour of the Wastewater Treatment Plant was conducted. A Notice of Violation (NOV) had previously been issued to the Town of Spring Lake for failure to properly maintain the facilities, and had resulted from the observations of the November 16, 2009 Compliance Biomonitoring Inspection (CBI). The inspectors. (Paul Rawls and I) found that the corrosion cited in the NOV had been corrected. In addition, the SO2 weighing scales were replaced, the SO2 automatic cylinder switchover system was repaired, the SO2 flow paced dosing system was repaired, and the SO2 cylinder securing chains were replaced. In addition, the WWTP's leak check procedure, with Fisher Scientific Ammonium Hydroxide 20% (Fisher Catalog Number 50-823-4523) was being evaluated. Theinspectors observed that new paint had recently been applied at several locations throughout the WWTP, that painting was still in progress, and that pressure washing of the cement was in progress. If you have any questions or comments concerning this report me at (910) 433-3312. --,�,Sincerely, . LDate Lopez Environmental Specialist Enclosure: EPA Water Compliance Inspection Report cc: Henry Taylor, Spring Lake WWTP Back -Up ORC AFRO Files 225 Green St., Suite 714, Fayetteville, NC 28301-5043 Phone: 910-433-33001 FAX: 910-486-0707 d Customer Service: 1-877-623-6748 Internet: www,ncwaterquality.org . An Equal Opportunity l Affirmative Action Employer Out. NorthCarolina Naturally United States Environmental Protection Agency EPA /� Washington, D.C. 20460 r/`! 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 NC0030970 1 11 121 10/03/01 117 Type Inspector Fac Type 181 cl "1 SI 201 166 Remarks 21 111111111111111111111111111111111111111111111 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA —Reserved 671 2.0 169 70 1 3 I • 711 I 721 NI 731.1 174 751 1 1 1 1 1 180 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Spring Lake WWTP 350 Harps St Spring Lake NC 28390 Entry Time/Date 10:00 AM 10/03/01 Permit Effective Date 06/07/01 Exit Time/Date 01:00 PM 10/03/01 Permit Expiration Date 11/05/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Henry Newell Taylor/ORC/910-497-5748/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Larry Faison,PO Box 617 Spring Lake NC 283900617/Town Contacted Manager/910-436-0241/9104362667 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) and checklists as necessary) Operations & Maintenance • Facility Site Review Section D: Summary of Finding/Comments (Attach additional sheets of narrative (See attachment summary) Name(s) an ature(s) of lnspec r(s) Agency/Office/Phone and Fax Numbers Dale Lopez tFRO WQ//910-433-3300 Ext.712/ Date ✓ C „.,1 e r Q Signature of Management Q A R viewer Agency/Office/Phone and Fax Numbers Date f xi 3h (ebb EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES 31 NC00309.70 I11 121 yr/mo/day 10/03/01 Inspection Type 17 18I C (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Enclosed you will find a copy a follow-up Compliance Evaluation Inspection (CEI) report that was conducted on March 1, 2010. As part of this inspection, a tour of the Wastewater Treatment Plant was conducted. A Notice of Violation (NOV) had previously been issued to the Town of Spring Lake for failure to properly maintain the facilities, and had resulted from the observations of the November 16, 2009 Compliance Biomonitoring Inspection (CBI). The inspectors (Paul Rawls and I) found that the corrosion cited in the NOV had been corrected. Other items cited in the NOV had either been repaired or replaced: the SO2 weighing scales were replaced, the SO2 automatic cylinder switchover system was repaired, the SO2 flow paced dosing system was repaired, and the SO2 cylinder securing chains were replaced. In addition, the WWTP's leak check procedure, with Fisher Scientific Ammonium Hydroxide 20% (Fisher Catalog Number 50-823-4523) was being evaluated. The inspectors observed that new paint had recently been applied at several locations throughout the WWTP, that painting was still in progress, and that pressure washing of the exterior aeration basin cement was in progress. Page # Permit: NC0030970 Owner - Facility: Spring Lake VWVTP Inspection Date: 03/01/2010 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? • ❑ ❑ ❑ 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: 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? i n n n Are all pumps present? ■ n n n Are all pumps operable? i ❑ ❑ ❑ Are float controls operable? ■ n n n Is SCADA telemetry available and operational? ❑ ❑ ■ ❑ Is audible and visual alarm available and operational? ■ ❑ n n Comment: The corroded hoist had been removed. Bar Screens Type of bar screen a.Manual b. Mechan ical Are the bars adequately screening debris? Is the screen free of excessive debris? Is disposal of screening in compliance? Is the unit in good condition? Comment: 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? Yes No NA NE n ■ ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ ❑ ❑ ❑ ■ nnn ■ nnn ■ nnn nnn■ ■ nnn ■ nnn Page # 3 Permit: NC0030970 Owner - Facility: Spring Lake WNTP Inspection Date: 03/01/2010 Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE 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 'A of the sidewall depth) !inn. Comment: Aeration Basins Yes No NA NE Mode of operation Ext..Air Type of aeration system Surface Is the basin free of dead spots? ■ n n n Are surface aerators and mixers operational? ❑ 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/I) n n n ■ Comment: Disinfection -Gas Yes No NA NE Are cylinders secured adequately? ■ n n n Are cylinders protected from direct sunlight? ■ n ❑ n Is there adequate reserve supply of disinfectant? ■ n n n 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 Does the Stationary Source have more than 250.0 lbs of Chlorine (CAS No. 7782-50-5)? n n • n If yes, then is there a Risk Management Plan on site? • 0 n • n If yes, then what is the EPA twelve digit ID Number? (1000- - ) If yes, then when was the RMP last updated? Comment: De -chlorination Yes No NA NE Type of system ? Page # 4 Permit: NC0030970 Owner - Facility: Spring Lake VWVfP Inspection Date: 03/01/2010 Inspection Type: Compliance Evaluation De -chlorination Yes No NA NE Is the feed ratio proportional to chlorine amount (1 to 1)? i n n n Is storage appropriate for cylinders? ■ n n n # Is de -chlorination substance stored away from chlorine containers? ■ n ❑ n 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? Comment: Page # 5