The URL can be used to link to this page

Home My WebLink AboutNC0049867_Compliance Evaluation Inspection_20180613ROY COOPER Gm-arxao-r KrIla. 1\- ICHAEL S_ BEGAN Seeretffy Water Resources LINDA CULPEPPER ENYIRUPaMEWFAL QUALITY InknM D1reau, Certified Mail # 7016 1370 0000 2595 7764 Return Receipt Reauested June 13, 2018 Mayor, Danny Gabriel Town of Cleveland Post Office Box 429 Cleveland, NC 27013 SUBJECT: Compliance Inspection Report Cleveland WWTP NPDES WW Permit No. NCO049867 Rowan County Dear Mayor Gabriel: The North Carolina Division of Water Resources conducted an inspection of the Cleveland WWTP on 5/29/2018. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0049867. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". 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: - Dumpster where influent screenings are placed lids do not close creating a vector attraction. - 30 -minute settleability test indicates high solids under aeration. - Sludge balls noted popping up in secondary clarifier with solids going over weir. - Aerobic digester was full sludge. - One of two drying beds were being used to stockpile dry sludge. Upon correction of the above noted deficiencies this Office will schedule a second regulatory review of the subject facility to ensure compliance. State of North Carolina I Environmental Quality I Water Resources 610 East Center Avenue, Suite 301, Mooresville, NC 28115 704-663-1699 If you should have any questions, please do not hesitate to contact Roberto Scheller with the Water Quality Regional Operations Section in the Mooresville Regional Office at 704-663-1699 or via email at roberto.scheller@ncdenr.gov. Sincerely, DocuSigned by: (� E For 91 C2A007838943E.. W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Mooresville Regional Office Division of Water Resources, NCDEQ ATTACHMENTS Cc: WQS Mooresville Regional Office - Enforcement File NPDES Compliance/Enforcement Unit - Enforcement File State of North Carolina I Environmental Quality I Water Resources 610 East Center Avenue, Suite 301, Mooresville, NC 28115 704-663-1699 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 IN 1 2 15 I 3 I NCO049867 111 12 I 18/05/29 I17 18 I S i 19 i G i 201 I 211111 I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I f6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 671 70 I2 71 I tyI 72 I r I 73 I I 174 751 I I I I I I I80 uI 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 oermit Number) 09:55AM 18/05/29 14/08/01 Cleveland WWTP 625 Third Creek Church Rd Exit Time/Date Permit Expiration Date Cleveland NC 27013 01:24PM 18/05/29 19/03/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Paul Stephen Land/ORC/704-642-2165/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Danny Gabriel,PO Box 429 Cleveland NC 27013/Mayor//7042780078 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 Facility Site Review 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 DocuSigned by: Roberto Scheller E_ (-� MRO WQ//252-946-6481/ 6/11/2018 91C2A007838943E.- Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date DocuSigned by: 6/14/2018 W. Corey Basinger MRO WQ//704-235-2194/ For F EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. �-91C2Ao07838943E... Page# NPDES yr/mo/day Inspection Type NCO049867 I11 121 18/05/29 117 18 JCJ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) At time of inspection 30-minute setteability test was conducted on mix liquor samples from each of the oxidation ditches. Mixed liquors settled to about 90% of container. Setteability test is indicative of amount of solids being maintained under aeration. Sludge balls were noted popping up on surface of secondary clarifiers with solids going over weirs. Aerobic digester was full of sludge and dried solids were bing stockpiled on one of two drying beds. Page# Permit: NCO049867 Owner - Facility: Cleveland WWTP Inspection Date: 05/29/2018 Inspection Type: Compliance Evaluation Permit Yes No NA NE (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? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? 0 ❑ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: Permit is for the continued operation of a 0.27 MGD wastewater treatment plant with rotary bar screen, 2-oxidation ditches, 2-secondary clarifiers, C12 and dechlorination, flow measurement, aerobic digester, drying beds and standby power. Current permit became effective August 1, 2014 and expires on March 31, 2019. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ 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 compliance report 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? 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: Page# 3 Permit: NCO049867 Owner - Facility: Cleveland WWTP Inspection Date: 05/29/2018 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: At time of inspection a 30 minute settleabilitv test was conducted on mix liauor samDles from each oxidation ditch. Mixed liquors settled to about 90% percent of container. Settleability is indicative of large amount of solids being maintained under aeration. Sludge balls were noted on surface of secondary clarifier with solids going over weirs. Aerobic digester was full and dried solids were being stockpiled on one of two drying beds. It is recommended that solids be removed from this facility for proper disposal as soon as possible. Please be advised that in accordance with your NPDES Permit NC0049867, Part II, Section C, 2. Proper Operation and Maintenance; The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control which are installed or used by the Permittee to achieve compliance with the conditions of the permit. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? 0 ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? 0 ❑ ❑ ❑ # Is the facility using a contract lab? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ ❑ Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ ❑ Comment: Field analyses is performed under field certification #5004 for DO, PH, Total Residual Chlorine and Temperature. All other analyses are perofrmed by Statesville Analytical, Lab Certification # 440. Bar Screens Type of bar screen a.Manual ❑ b.Mechanical Are the bars adequately screening debris? M ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: It is recommended that dumpster used for influent screening disposal be replaced with dumpster with workable cover to exclude rainwater and prevent vector attraction. Page# 4 Permit: NCO049867 Owner - Facility: Cleveland WWTP Inspection Date: 05/29/2018 Inspection Type: Compliance Evaluation Influent Sampling Yes No NA NE # Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected above side streams? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? 0 ❑ ❑ ❑ Comment: At time of inspection influent sampler was recorded at 3 degrees Celsius. Oxidation Ditches Yes No NA NE Are the aerators operational? 0 ❑ ❑ ❑ Are the aerators free of excessive solids build up? ❑ 0 ❑ ❑ # Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? ❑ ❑ ❑ Are settleometer results acceptable (> 30 minutes)? ❑ 0 ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ ❑ ❑ Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) ❑ 0 ❑ ❑ Comment: It is recommended that the proper laboratory apparatus be used while performing settleability test, either a settlometer and/or 1000 or 2000 mL graduated. Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? 0 ❑ ❑ ❑ Are weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? 0 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? ❑ 0 ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth) 0 ❑ ❑ ❑ Page# 5 Permit: NCO049867 Inspection Date: 05/29/2018 Owner - Facility: Cleveland WWTP Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE Comment: Sludge balls were poping up in secondary clarifier. Solids from sludge balls were -going over weir. Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: RAS-WAS pumps are located in wet well at secondary clarifiers. 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 Ibs of Chlorine (CAS No. 7782-50-5)? 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? Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ ❑ Comment: Facility uses 150 Ibs. cylinders of chlorine and sulfer dioxide stored inside building. 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: ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ Yes No NA NE Gas ❑ ❑ ❑ ■ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ Page# 6 Permit: NCO049867 Owner - Facility: Cleveland WWTP Inspection Date: 05/29/2018 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected below all treatment units? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: At time of inspection effluent sampler was recorded at 3 degrees Celsius. Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Comment: Flow meter was last calibrated on September 27, 2017. Aerobic Digester Yes No NA NE Is the capacity adequate? ❑ 0 ❑ ❑ Is the mixing adequate? 0 ❑ ❑ ❑ Is the site free of excessive foaming in the tank? 0 ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? ❑ 0 ❑ ❑ Comment: It was noted that solids in digester was very thick and digester was full. Drying Beds Yes No NA NE Is there adequate drying bed space? ❑ 0 ❑ ❑ Is the sludge distribution on drying beds appropriate? ❑ 0 ❑ ❑ Are the drying beds free of vegetation? ❑ ❑ ❑ # Is the site free of dry sludge remaining in beds? ❑ ❑ ❑ Is the site free of stockpiled sludge? ❑ ❑ ❑ Is the filtrate from sludge drying beds returned to the front of the plant? 0 ❑ ❑ ❑ # Is the sludge disposed of through county landfill? 0 ❑ ❑ ❑ # Is the sludge land applied? ❑ ❑ ❑ ❑ Page# 7 Permit: NC0049867 Inspection Date: 05/29/2018 Drying Beds (Vacuum filters) Is polymer mixing adequate? Owner - Facility: Cleveland WWTP Inspection Type: Compliance Evaluation Yes No NA NE ❑ ❑ ■ ❑ Comment: WAS is pumped from aerobic digester to drying beds. It as noted at time of inspection that one of the two drying beds was being used to stockpiled dry sludge. 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: Town of Cleveland maintenance department services generator. Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 8