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Home My WebLink AboutNC0043176_Inspection_20070219Mibhael'F: Easley, Governor Williani;G. Ross Jr -.,:Secretary. North Carolina Department of Environment 1nd`Natural Resources Alan_ W: Klimek, P,E.. Director Division of Water Quality February 19, 2007 Ronald D Autry :City;.of burin PO BOX 1.065•. Dunn NC 28335 SUBJECT: February 15, 2007 Compliance Evaluation Inspection City of Dunn - Dunn-WWTP:.; ermit,No; :::NC0043:1:76: Harnett Courity' Dear Mr. Autry: • Enclosed please'frnd a. copy of the Compliance Evaluation Inspection form from the inspection conducted on February 15; 2007. The Compliance Evaluation Inspection was conducted by Mark Brantley of the Fayetteville Regional Office. The cooperation of Donnie Dukes, Temporary -Grade IV ORC,. and Gary Barefoot, Grade II Operator, was greatly appreciated. The facility was found to be - in Compliance with perinit NC0043176. As a ,reminder, preservation of the Waters of the State can only be, achieved through consistent NPDES Permit • compliance. COMMENTS • Facility was clean and neat in appearance at the time of the inspection. • DMR's for the months of July 2006, August 2006, and October 2006 were compared to laboratory bench sheets and appeared to be in order. • Sludge blankets appeared to be at acceptable levels in the clarifiers. There was no sludge detected in the chlorine contact chamber at the time of the inspection. • • As mentioned in previous inspection reports the housing of chlorine gas and sulfur dioxide gas poses a potentially dangerous situation. The town should consider separating these two gases for employee safety purposes. North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 FAX (910) 486-0707 Internet: h2o.enr.state.nc.us An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper Fayetteville, NC 28301 Phone (910) 433-3300 Customer Service 1-877-623-6748 NorthCarolina Naturally Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have any questions, please call me`at 910-433-3327. Sincerely, Mark, Brantley Environmental Chemist Surface Water Protection Section Fayetteville Regional Office 'cc:: Donrie Eldridge Dukes; ORC Central Files Fayetteville Files - United States Environmental Protection Agency _ " Washington,. D.C.20460 EPA - . ".:.' , •.. _;:.. _ . Water:'. Compliance.. Inspection 'Report Form •Approved. 'OMB_No:2040-0057 ... ,aPprovacexphe58-31-98 • • Section A."''National'Data System Coding ('re,`PCS) Transaction Code NPDES yr/mno/day Inspection 1 I NI 2 1 51 31 NC0043176 Ill 12.1 ' .07/02/15 1.17 Type : Inspector Fac Type 18l Cl 191 sl 201 I I 1.1 1 -1 1 1 1 I 11 1 1" 166 LJ Remarks 211.-1. 1 I' I I I.I. I I.I-I'I":I 1 I 1 I 1 II_-l..l I111 1 I 1 1 -I Inspection Work Days Facility. Self.=Monitoring Evaluation Rating B1 QA 671 1 69 701 31 711 N 1 721 N 1 Reserved 751 1 1 1 1 1 1 1 80 ' 731 1 174 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Dunn WWTP Susan Tart Rd - Dunn NC 28335 • Entry Time/Date 09:30 AM 07/02/15 Permit Effective Date 0�/02/0l .. ..... . _ . Exit Tinie%Date 12:30 PM 07/02/15 Permit Expiration bate 11/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Billy Weldon Addison/ORC/910-89272948/ Donrie Eldridge Dukes/ORC/910-892-8162/ . Other Facility Data Name, Address of Responsible Officiat/Title/Phone and Fax Number Contacted Ronald D Autry,PO Box 1065 Dunn NC 28335//910-892-2633/ 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 U 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/ A.A. 0-70.4' ...2-/y,7 Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Belinda S Henson 1, FRO WQ//910-433-3300 Ext.726/ 2- 26 ^ 0 7 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 " / »| , . wPose yr/numay 11 12 17 JiC,004jz76 07/02/1.5 | Inspection Typo � m ICI �~ 1 ` Section D��ummary '��i ' . � (Attach p«n�omdoheo�ufpd�anv�and�haoN�saonecesnary) ' ` Facility was clean and neat inappearance sd the time cfthe ins0ecdnn. Facility . had a pH violation in N,overn-ber 2006 which resulted in a Notice of Violation.. ^ Page# 2 Permit: NC00431.7.6 Inspection Date: 02/15/2007 Owner Facility Inspection Type: unn`.WWTP ompliance''Eyaluation Compliance. Schedules Is there a compliance schedule for this facility? Is the facility compliantwith' the perrnit and 'Conditions'for the review period? • Coinmerit: Operations &_Maintenance Is the plant generally clean with acceptable•housekeeping? Does the facility analyze process control parameters, for ex:-MLSS, MCRT, Settleable Solids, pH, DO, Sludge Judge, and other that are applicable? Comment. `;:'Facility, uses; M•LSS,.is`ettleable;solids,;pH dissolved :oxygen levels, and; 'sludge blanketses=process eontrols. 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? Yes. No NA • NE • nnn • nnn Yes No . NA NE ■ nnn Ili nnn Yes No NA NE n n• n ■ n*nn n n■n • n,nn. inn-n- Comment: - Record Keeping, Yes No NA NE Are records kept and maintained as required by the permit? • fi n n n Is all required information readily available, complete and current? • ❑ n ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? ■ n n n Are analytical results consistent with data reported on DMRs? ■ El n n Is the chain -of -custody complete? ■ n n n Dates, times and location of sampling • - II • Name of individual performing the sampling U Results of analysis and calibration Dates of analysis Name of person performing analyses • Transported COCs • Are DMRs complete: do they include all permit parameters? ■ ❑ ❑ n Has the facility submitted its annual compliance report to users and DWQ? Ennn (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? n n • 11 Page # 3 Permit: NC0043176 Owner - Facility: Dunn w\TP Inspection Date: 02/15/2007 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: Effluent Pipe Is right ofway 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: Effluent flow meter is used for reporting purposes. The influent flow meter was last calibrated in April 2006 and is scheduled to be calibrated in April 2007. 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: Flow meter was last calibrated in April 2006. 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? Yes No NA NE lnnn ■ nnn ■ nnn ■ nnn ■ nnn :Yes, No.. NA .NE,..:.. shbn ■ nn■ n nn■ Yes No NA NE n .iinn ■ ri n n ■ nnn n nn■ Yes No NA NE ■ nnn ■ nnn ■ nnn n nn■ Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Page # 4 Permit: NC0043176 Owner - WWTP Inspection Date: 02/15/2007 . Inspection Type: Compliance Evaluation Aerobic Digester. Comment: Drying Beds: Is there adequate drying bed, space? • Is the sludge distribution bn drying beds appropriate? 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? # Is the sludge disposed of through county landfill? # Is the sludge land applied? (Vacuum filters) Is polymer mixing adequate? Comment: Drying beds are used only in emergency situations. Solids Handling Eg_uipment Is the equipment operational? Is the chemical feed equipment operational? Is storage adequate? Is the site free of high level of solids in filtrate from filter presses or vacuum filters? 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? Comment: The DAF unit was not in operation at the time of the inspection. Pump Station - Effluent 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: Pump Station - Influent Yes No NA NE Yes No NA NE •nnn■ n nn■ n'00• n nn■ n.,nn■ , ni n ri ■ n nn■ nnn. n n'ni Yes. No NA NE n nn n rin1 ■ n n n n nn■ n n■n n n■n ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn n nn■ n nn■ Yes No NA NE Page # 5 Permit: NC0043176 Owner - Facilitq:' Dunn WWTP Inspection Date: 02/15/2007 Inspection Type;; Cbmpliarice Evaluation Pump Station -Influent Yes No NA NE Is the pump wet,well.free of bypass lines or structures? ■ 0 n n Is the wet well free of excessive grease? • n n n Are all pumps present? • ❑ n 'n Are all pumps operable? ■ ❑ n Are float controls operable? • n ❑ n Is SCADA telemetry available and operational? 0 n • n is audible and visual'alarm available and operational? — • .n"'n..n- Comment: Bar Screens Yes No NA NE Type of bar screen a.Manual a b.Mechanical . • Are the bars. adequately screening debris? • ❑ n Is the screen free of excessive debris? • [inn Is disposal of screening in compliance? • ❑ ❑ ❑ Is the unit in good condition? ■ ❑ n n Comment: Facility has a manual back-up bar screen. Grit Removal Yes No NA NE Type of grit removal a.Manual n b.Mechanical Is the grit free of excessive organic matter? ■ n ❑ n Is the grit free of excessive odor? • n n n # Is disposal of grit in compliance? • ❑ n n Comment: 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? • ❑ ❑ ❑ Page # 6 permit: NCQ04317Q Instieetion•Date:, 0/15/2007 9Wrigi•;!Nqility; Dunn WWTP InspectIOfl Type Compliance Evaluation , - Secondary Clarifier 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'blarikeUevel:acceptable?,(ApproXimately%of the sidewall depth) Comment' 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? D6es 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: Dissolved oxygen level ranges from 0.2 to 1.0 mg/I but averages around 0.5 mg/I. 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)? If yes, then is there a Risk Management Plan on site? If yes, then what is the EPA twelve digit ID Number?(1000- •'Yqs No NA NE n Fl • n • Of rl n minno annn Er El El 1-1 • 171 11 17 Yes No NA NE Ext. Air Diffused: • Fl . 000 • Fl Fl •• fl Fl -n • Fl nr1 • nnn • nrin Yes No NA NE • I-1•Fl . 000 o n 11 I-1 • nnn • El 1-1 n • 11 nrl • nnn • nnh Page # 7 Permit: NC0043176 Owner - Facility: Dunn WWTP , Inspection Date: 02/15/2007 Inspection Type:, Compliance Evaluation Disinfection -Gas 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: Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: Laboratory Are field parameters performed by certified personnel or laboratory? Are all other parameters(excluding field parameters) performed by a certified lab? # Is the facility using a contract lab? Yes No NA NE Yes No NA NE Gas Finns' ■ Finn ■ .n n.n nn■n Fin■n Yes No NA NE ■ Finn ■ Finn ■ Finn ■ Finn ■ Finn Fin■n ■Finn Yes _No NA NE ■ Finn ■ Finn ■ Finn Yes No NA NE ■ Finn �nnn MOOD Page # 8 •Permit: NC0043176 Inspection Date: 02/,15/2007. ' Owner =Facility:' Dunn \W P -_ Inspection. Type: 'Compliance Evaluation, Labbrato6r Is proper temperature set for sample storage -(kept at 1.0 to 4.4 degrees Celsius)? Incubator (Fecal Conform) set to 44.5 degrees Celsius+/_ 0.2 degrees?. Incubator (BOD) setto 20.0 degrees,Celsius•,+/- 1'.0 degrees? Comment:' Environment'l Tabs performs BOD and total nitrogen. CET performs the toxcitiy parameter. Influent Sampling• YesNo NA NE # Is composite sampling flow proportional? n • n n Is sample: collected' above s•ide streams?. n n n •Is proper volume collected? • n 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)? ■ f_l n n Is -sampling performed according to the permit? 1 n Q n Comment: The influent temperature was 2 degrees.celsius. The influent is sampled every 15 minutes. Effluent Sampling Is composite sampling flow proportional? •' .n n n Is sample.collected below all treatment units? • ❑ n, Is proper volume collected? ■ ❑ ❑ 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 ❑ ❑ . ■ ❑ El 0 Is the facility sampling performed as required by the permit (frequency, sampling type representative)? Comment: Effluent sampler temperature was at 3 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)? 0 ❑ n ■ Comment: Facility is a member of the Cape Fear River Basin Association. Yes No NA NE El 11 El innn•, nrl.■n Yes No NA. NE Page # 9 Regional Field Inspectors Name of site to be Inspected: i) Field certification # (if applicable): NPDES I. Circle the 'arameteror ararneters= erformed-at.tiiis'si Re sidual Chlorine, Settleable Solids, pH., DO, Conductivity; Tempera II. Instrumentation: A. Does the facility. have the equipmerr necessa 1. A pH meter /1c61;ria7— *2 -.6—d. 2. A Residual Chlorine meter HG. yauo 3. ' DO meter Y,Sz' . s6' •0 . ...=. 4. 5, A thermometer or meter that measures temperature. 6. Conductivity meter III Calibration/Analysis:_. 1. Isthe 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? 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 .Y'o(-/ 02 No