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Home My WebLink AboutNC0024201_Historical information_20201231January 7, 2020 Subject: Dear Mr. Brown: 1. 2. 3. The permit lists the following units; all were observed during the inspection:4. The facility is currently permitted to discharge up to 8.34 MGD into Roanoke River, a Class C waters in the Roanoke River Basin. Current pennit was issued on October 19, 2018, and became effective on December 1,2018. • Automatic and manual bar screens (Huber Rotomat cylindrical screen, manual bar screen serves as backup) • Vortex grit removal Dani el ey Brown, CEO Roanoke Rapids Sanitary District PO Box 308 Roanoke Rapids, North Carolina 27870 Compliance Evaluation Inspection Roanoke River Waste Treatment Plant NPDES Permit No NC0024201 Halifax County ROY COOPER Cowrnor MICHAEL S. REGAN Secretary LINDA CULPEPPER Director --------------- The laboratory was inspected in a cursory manner The facility analyzes BOD, COD, TSS, fecal coliform, ammonia nitrogen, and total phosphorus, and is field certified for TRC, pH, temperature and DO (Certification #70). Log books were kept and showed that incubators were kept at acceptable temperatures. pH buffers were within dates. Calibration logs were present. All other parameters are analyzed by Meritech, Inc. Lab results, chain- ot-custody forms, and DMRs were complete and organized. January and July 2019 DMR data was compared to bench sheets and lab reports; no data transcription errors were noted. Samples were observed to be kept at proper temperature. On December 5, 2019, Cheng Zhang of the Raleigh Regional Office (RRO) conducted a Compliance Evaluation Inspection at the subject facility. The assistance provided by Mr. Steven Ellis, Operator in Responsible Charge (ORC) and Ms. Isabelle Wilcoxon, Lab Supervisor was appreciated. The inspection report is attached. Findings during the inspection were as follows: : 11'; r i" NORTH CAROLINA Environmental Quality North Cdrolin.j Departoie.'it of f.nvirwmt'tilal Qu.ility Division a' Wati.-- Ri-sources Raleigh Ri'yionai Office 'JKOO Ban rt» Drive Raleigh. Net th Carolina 27609 919.7OJ 4200 The plant is classified as a WW -4 wastewater facility. Mr. Steven Ellis is designated as the ORC. Mr. Timothy Skipper is designated as the main backup ORC. Daily operation log books are detailed and are kept onsite going back at least three years. •itvirr/niwitial j^*****^ 5. Attachments: Compliance Inspection Report The right of way to the outfall was properly maintained. The effluent appeared clear and free of solids. There were no visible detrimental impacts to the receiving stream. This facility was found to be compliant with NPDES permit conditions as a result of this inspection. The plant is well maintained and documentation was found to be detailed, organized, and complete. If you have any questions regarding the attached report, please contact Cheng Zhang at 919-791-4200 (or email: cheng.zhang@ncdenr.gov). Sincerely, Scott Vinson, Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources Cc: Central Files w/attachment (Laserfiche) . Raleigh Regional Office w/attachment • Steven ERis, ORC (electronic copy only) • Influent pump station with four pumps • Two 375, 000-gallon equalization tanks (Formerly clarifiers, only used under high flow circumstances) • Two primary clarifiers (one was in operation, with primary sludge pump station) • Two trickling filters (Both were operating, with filter effluent pump station and filter recirculation pump station) • Two 2.000,000-gallon rectangular secondary clarifiers w/ traveling bridge (one was in operation) • Three 500,000 aeration basins (one was in operation) • Two chlorine contact chambers (one was in operation) • Two RAS pump stations • Three anaerobic digesters (two primary and one secondary) with heat exchangers (secondary digester was offline for maintenance), for primary sludge • One WAS Pump Station • Two gravity settling tanks with gravity belt thickener and lime stabilization (for wasted activated sludge) • 1,000,000-gallon solids storage tank • Effluent pump station • Fourteen sludge drying beds • On-Site generator EPA Section A: National Data System Coding (i.e., PCS) Inspection TypeNPDESyr/mo/day Inspector 3 J11 19NC002420119/12/05 21 Bl QA -Reserved- J 72 8073 Section B: Facility Data Entry Time/Date Permit Effective Date 18/12/0110:00AM 19/12/05 Roanoke River WWTP Exit Time/Date Permit Expiration Date135 Aqueduct Rd 19/12'0512 30PM 22/03/31Weldon NC 27890 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number ContactedSteven L Ellis,PO Box 308 Ronok Rpd Afs NC 27870//252-536-4884/2525364885 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) 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 Cheng Zhang DWR/RRO WQ/919-791-4200/ 1/7/^° Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete 1Page# S Permit 9 Self-Monitoring Program 9 Laboratory Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) | Flow Measurement | Operations & Maintenance | Records/Reports 9 Sludge Handling Disposal H Facility Site Review | Effluent/Receiving Waters Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 /// Steven Lee Ellis/ORC/252-536-4884/ United States Environmental Protection Agency Washington. D.C. 20460 Water Compliance Inspection Report Inspection Work Days 671______ Transaction Code 1 12L Facility Self-Monitoring Evaluation Rating 70 u J17 Date LU74 75l I I I I I I I LU 111111 111111111111111111 1111111 .......... ............... Fac Type 20U 71 u 18LU2 Id NPDES 1(Cont.) 3[NC0024201 2Page# f1 yr/mo/day 19/12/05 The permit lists the following units. Automatic and manual bar screens Vortex Grit Removal Influent pump station with four pumps Two 375.000 Gallon Equalization Tanks (Formerly clarifiers, only used under high flow situations) Two primary clarifiers (one was in operation, with primary sludge pump station) Two trickling filters (Both were operating, with filter effluent pump station and filter recirculation pump station) Two 2,000,000 gallon rectangular secondary clarifiers w/ traveling bridge (one was in operation) Three 500,000 aeration basins (one was in operation) Two Chlorine Contact Chambers (one was in operation) Two RAS Pump Stations Three anaerobic digesters (two primary and one secondary) with heat exchangers One WAS Pump Station Two gravity settling tanks with gravity belt thickener and lime stablization 1,000,000 gallons solids storage tank Effluent pump station Fourteen sludge drying beds On-Site generator J17 Inspection Type 181£]12l Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Current permit was issued on October 19, 2018. and became effective on December 1. 2018, Roanoke River WWTP Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? Comment: Permit Yes No NA NE ■ 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: Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical 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? Huber rotamat cylindrical screen, with manual bar screen as backupComment: Grit Removal Yes No NA NE Type of grit removal 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?■ Comment:Vortex grit removal 3Page# Owner - Facility: Inspection Type: Compliance Evaluation Permit: NC0024201 Inspection Date: 12/05/2019 Facility analyzes MLSS, MCRT, Settleable Solids. pH. DO. ammonia, and Sludge Judge for process control. Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH. DO. Sludge Judge, and other that are applicable? Current permit was issued on October 19, 2018, and became effective on December 1, 2018, (If the present permit expires in 6 months or less). Has the permittee submitted a new application? Roanoke River WWTP Equalization Basins Yes No NA NE Is the basin aerated? ■ Is the basin free of bypass lines or structures to the natural environment9 ■ Is the basin free of excessive grease?■ Are all pumps present?■ Are all pumps operable?■ Are float controls operable9 Are audible and visual alarms operable? ■ # Is basin size/volume adequate?■ Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures?■ Is the wet well free of excessive grease?■ 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 operational9 ■ Influent pump station with four pumps.Comment: Primary Clarifier Yes No NA NE 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 sludge blanket level acceptable9 ■ Is the sludge blanket level acceptable? (Approximately Vi of the sidewall depth)■ One of two primary clarifiers was on line at the time of inspection.Comment: 4Page# Permit: NC0024201 Inspection Date: 12/05/2019 Owner - Facility: Inspection Type: Compliance Evaluation Comment: Two 375,000 Gallon Equalization Tanks (Formerly Clarifiers). Only use under high flow situations. Trickling Filter Yes No NA NE 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”? Comment: Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused 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/l)■ Comment:One of three aeration basins was in operation Secondary Clarifier Yes No NA NE 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 of the sidewall depth)■ 5Page# Is the filter free of sloughing of excessive growth? Are the filter's distribution arms orifices free of clogging? Is the filter free of excessive filter flies, worms or snails? Permit: NC0024201 Inspection Date: 12/05/2019 ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Both trickling filters were in operation. Filter effluent pump station with 4 pumps (to secondary clarifiers). Filter recirculation pump station with 3 pumps. Owner - Facility: Roanoke River WWTP Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE Comment:One of two rectangular secondary clarifiers w/ traveling bridge were on line. Disinfection-Liquid Yes No NA NE Is there adequate reserve supply of disinfectant?■ (Sodium Hypochlorite) Is pump feed system operational? ■ ■ Is the contact chamber free of growth, or sludge buildup’’■ Is there chlorine residual prior to de-chlorination’’■ Comment:6% sodium hypochlorite solution was used for disinfection. De-chlorination Yes No NA NE Type of system ?Liquid 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:38% sodium bisulfite solution was used for de-chlorination Are the tablets the proper size and type? ■ Are tablet de-chlorinators operational? Number of tubes in use? Comment: Influent Sampling Yes No NA NE # Is composite sampling flow proportional? ■ Is sample collected above side streams?■ Is proper volume collected?■ Is the tubing clean?■ ■ Is sampling performed according to the permit?■ Comment:No influent flow meter. Effluent Sampling Yes No NA NE 6Page# # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Is bulk storage tank containment area adequate^ (free of leaks/open drains) Is the level of chlorine residual acceptable? Permit: NC0024201 Inspection Date: 12/05/2019 Owner - Facility: Roanoke River WWTP Inspection Type: Compliance Evaluation Roanoke River WWTP Effluent Sampling Yes No NA NE Is composite sampling flow proportional?■ Is sample collected below all treatment units?■ Is proper volume collected?■ Is the tubing clean?■ ■ ■ Comment: Laboratory Yes No NA NE 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?■ ■ Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?■ Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?■ Comment: Standby Power Yes No NA NE 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 Yes No NA NE Are pumps in place?■ Are pumps operational?■ ■ Are there adequate spare parts and supplies on site? 7Page# Permit: NC0024201 Inspection Date: 12/05/2019 # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type representative)-? Owner - Facility: Inspection Type: Compliance Evaluation Pumps-RAS-WAS Yes No NA NE Comment: Anaerobic Digester Yes No NA NE Type of operation Floating cover Is the capacity adequate? # Is gas stored on site?■ Is the digester(s) free of tilting covers?■ Is the gas burner operational? ■ Is the digester heated?■ Is the temperature maintained constantly?■ Is tankage available for properly waste sludge?■ Comment: Aerobic Digester Yes No NA NE 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 sludge9 ■ Comment:1 MG sludge holding tank. Flow Measurement - Effluent Yes No NA NE # 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:The flow meter is calibrated quarterly Effluent Pipe Yes No NA NE 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? ■ 8Page# Permit: NC0024201 Inspection Date: 12/05/2019 Owner - Facility: Roanoke River WWTP Inspection Type: Compliance Evaluation Two RAS pump stations, each with two pumps. One WAS pump station with two pumps. Primary sludge pump station (to anaerobic digesters). Two primary anaerobic digesters were in operation. The secodary digester was off line for maintenance. Roanoke River WWTP Effluent Pipe Yes No NA NE Comment: Drying Beds Yes No NA NE Is there adequate drying bed space?■ Is the sludge distribution on 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? ■ Only one of 14 beds was in use.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: Chemical Feed Yes No NA NE ■ Is containment adequate? ■ Is storage adequate? ■ Are backup pumps available? ■ Is the site free of excessive leaking? Lime, polymer feed with adequate containment and redundant pumps.Comment: 9Page# ■ ■ Permit: NC0024201 Inspection Date: 12/05/2019 Owner - Facility: Inspection Type: Compliance Evaluation V Roanoke Rapids Sanitary District February 27, 2020 NC Dept of Environmental Quality Re: Dear Mr. Vinson: Enclosures Cc: h npdes permit' 19_sys performance ann report Itf.docx Enclosed please find three (3) copies of Roanoke Rapids Sanitary District’s System Performance Annual Report for calendar year 2019. This report is submitted to meet the requirements of the NCDEQ policy to promote public oversight of system performance for reduction and elimination of sanitary sewer overflows (SSO's) from wastewater collection or treatment works. If these documents should be provided to additional DWQ personnel; or if additional information is required, please contact me. Very truly yours, Roanoke Rapids Sanitary District Steven Ellis David Scott File CERTIFIED MA1E 7005 3110 0001 6339 2166 RETURN RECEIPT REQUESTED Mr. Scott Vinson, Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NCDEQ 1628 Mail Service Center Raleigh, N. C. 27699-1628 2019 System Performance Annual Report Collection System #WQC00027 NPDES#NC0024201 NCG110000 Page: 1/1 <C\ ar): I lx P.O. Box 308 1000 Jackson Street Roanoke Rapids, NC 27870 (252)537-9137 Fax: (252)537-3064 www.rrsd.oro a?/ 4 MAR -/2020 Raleigh Regional Office R. Danieley Brown, P.E. Chief Executive Officer https://bimsportal.ncdenr.org/ login.doBIMS *Level of Treatment:None Longitude: Position Datum:-Select Vab . 11/12/2020 Affiliations DWQ 11/16/2020, 11:15 AM1 of I Permit: NC0024201 Facility Name : Roanoke River WWTP Owner : Roanoke Rapids Sanitary District City : Weldon 5 Day Details Bypass/Upset Details 24 Hour Details 5 Day Details 10 Day Details Questions Agencies Events Incident Number : 202003142 County : Halifax Region : Raleigh Emergency Mgmt Contacts: - Select Value - First Name: Middle Name: Public Notice: Add Info Req: Comments: Emergency Mgmt. 09:15 am Unknown Unknown *24 hour Notification Reported to: Date/Time: 11/13/2020 mm/dd/yyyy HH:MM aa DWQ Staff: Hayes, Mitchell S. No • Unknown No No Decimal Latitude: Management SystemBIMS Primary Treatment DD:MM:SS Position Accuracy: —Select Vab Position Method: -Select Vah ♦ Secondary T Yes No • Unknown ^Location of Units being Bypassed? Filter Effluent Pump Station (mm/dd/yyyy) (mm/dd/yyyy) *Bypass/Upset Start Date/Time: n/12/2020 03:00 pm J mm/dd/yyyy HH:MM aa *Est. Volume in gallons: 1000000 How was volume Determined? Weather Conditions during Bypass/Upset event? 5" of rain, high flows. Were Samples taken during bypass? Yes Was WWTP compliant with permit requirements? • Yes *Did Bypass/Upset reach Surface Water? • Yes Surface Water Name? ROANOKE RIVER - 23-(25.5) Other WaterBody: *Fish Killed? North Carolina Permittee: Roanoke Rapids Sanitary District Permit Number: NC00242Q1 Facility Name: Roanoke River WWTP County: Halifax Level of Treatment: None Primary Treatment X Secondary Treatment Chlorination/Disinfection Only Estimated Volume of SpiIl/Bypass:536,877 gallons (must be given even if it is a rough estimate) Did the Spill/Bypass reach the Surface Waters?X Yes No If yes, please list the following: Volume Reaching Surface Waters: 536,877 gallons Surface Water Name:Roanoke River Did the Spill/Bypass result in a Fish Kill? Yes X No Was WWTP compliant with permit reguirements?X Yes No Were samples taken during event?Yes X No Source of the Upset/Spill/Bypass (Location or Treatment Unit): Influent Pump Station and Trickling Filter effluent Pump Station Cause or Reason for the Upset/Spill/Bypass: Heavy Rains coupled with one of the four influent pumps not pumping. Describe the Repairs Made or Actions Taken: Anill/R\/na^Q Rpnnrtinn Form (Ai ini i<;t Incident Started: Incident Ended: RRSD has made all attempts to find and correct all deficiencies in its collection system and will continue to do so. The pump that had the VFD drive fault was reset and is pumping normally. DWR Division of Water Resources Date: 9/18/20 Date: 9/18/20 G»^ WWTP Upset, Spill, or Bypass 5-Day Reporting Form (Please Print or Type Use Attachments if Needed) Opartment of Environment ai^Natural Resources Time: 1:50am Time: 1:10pm Action Taken to Contain Spill, Clean Up and Remediate the Site (if applicable): N/A Action Taken or Proposed to be Taken to Prevent Occurrences: Additional Comments About the Event: 24-Hour Report Made To:Division of Water Resources X Emergency Management Contact Name:Zach Thomas Date:9/18/2020 Time: 10:45am Incident number 202002623 Other Agencies Notified (Health Dept, etc): Person Reporting Event:Steven L Ellis Phone Number: 252-885-0166 Did DWR Request an Additional Written Report?Yes X No If Yes, What Additional Information is Needed: Spill/Bypass Reporting Form (August 2014) In an attempt to minimize or eliminate the bypasses, 1,673,383 gallons of wastewater was equalized with bypass pumping. WWTP Upset, Spill, or Bypaijk-Day Reporting Form Page 2 Regional Inspectors’ Checklist for Field Parameters 14//-V i p TEMP SC SETT E, Yes No I J No O Yes No Yes No E Yes No TRO/ ■J KJ Yes E Yes KI Yes E Yes Yes No No No No No No No ] No No pH HL DO ~V_ i/ iz y i7 / 7F E Yes [KJ Yes l-z v NPDES #: __ Field Lab Certification #: Lab Contact: E Yes No 3 Yes E Yes El Yes Facility Name: f^COo / 7^ ) L^/ '!c e xd'/i Check the parameter(s) performed at this site for reporting purposes. 3 Total Residual Chlorine (TRC) 31 Temperature (TEMP) | I Specific Conductivity (SC) 3 PH S. Dissolved Oxygen (DO) Settleable Residue (SETT) Are the following items documented (Y where applicable): Item : ' 1 Date of sample collection*_________ Time of sample collection*_________ Sample collector’s initials or signature Date of sample analysis*__________ Time of sample analysis*__________ .Analyst initials or signature________ Sample location ________________________L__z_____, ‘Date and time of sample collection and analysis may be the same for in situ or on-site measurements. Regional Plant Inspector:_________________ Regional Inspector Contact #: y 2^rs| Region: Date: | yr/ __________________ III. Total Residual Chlorine _____ _____ . .. -________, ■ - , ■ Total Residual Chlorine meter make and model: P Is a check standard analyzed each day of use? (Circle one: gel dfTiquid standard) What is the assigned/observed value of the daily check standard? / i_ Is a 5-point calibration verification performed? Note date of last verification: Alternatively, does the lab construct a linear regression, using 5 standards, to calculate results? Note date of last calibration curve constructed: True values: I3^pg/L mg/L _p-%d Obtained values: mg/L 2-7 3 S o_ What program are samples analyzed on?_________ Are results reported in proper units? Check one: E pg/L mg/L Are results reported between the facility’s permit limit and the compliance limit of 50 pg/L? If value is less than the low standard, report as “<x”, where x=low standard cone. Are samples analyzed within 15 minutes of collection?____________________________ IV- pH .. . , ...... ... ... ______ pH meter make and model: H ij-'-pOcA Is the pH meter calibrated with at least 2 buffers per mfg's instructions each day of use? Note buffers used: </-, 7 z /O___________ Is the pH meter calibration checked with an additional buffer each day of use? Note check jufferused: -7 C?, , y , J_________ Does the check buffer read within ±0.1 S.U. of the known value?____________________ Are the following items documented: Meter calibration?_______________________ _______________ Check buffer reading?_________________ Are samples analyzed within 15 minutes of collection?____________________________ Are sample results reported to 0.1 pH units? II. General Laboratory (note any exceptions in section XI) Are instruments, meters, probes, photometric cells, etc, maintained in good condition? Are standards, reagents and consumables used within manufacturer expiration dates? [TRC gel standard is exempt.] Yes No No [g Yes No No Yes No Yes Yes K| No Additional comments:XI. Electronic copies may be emailed to linda.chavis@ncdenr.gov . Revision 04/20/2012 Please submit a copy of this completed form to the Laboratory Certification program at: DWQ Lab Certification, Chemistry Lab, Courier # 52-01-01 No No L No No No No No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes “QYes Yes Yes “ OYes Yes Ki Yes Yes K Yes Yes ~~E] Yes V.----Temperature What instrument(s) is used to measure temperature? Check all that apply: pH meter E DO meter Conductivity meter Digital thermometer Glass thermometer Is the instrument/thermometer calibration checked at least annually against a NIST traceable or NIST certified thermometer? \/ Y/ iq______________________ Are temperature corrections (even if zero) posted on the instrument/thermometer? Are samples measured in situ or on-site? [REQUIRED - there is no holding time for temperature]____________________ _______________ Are sample results reported in degrees C?____________________ V|. Dissolved Oxygen ______. ■ • DO meter make and model: z — .A Is the air calibration of the DO meter performed each day of use? Are the following items documented:________________________________________ Meter calibration?________________________________ ____________________ ,Are samples analyzed within 15 minutes of collection? Are results reported in mg/L? ________________________ ____________ VII. Conductivity ___________ _______ Conductivityjmetei^ak^ndjmodel:______________________________________ Is the meter calibrated daily according to the manufacturer’s instructions? Note standard used (this is generally a one-point calibration):_________________________________ Is a daily check standard analyzed? Note value: Are the following items documented:_________________________ ____________ Meter calibration?____________________ ______________________________ Are samples analyzed within 28 days of collection?________ Are results reported in pmhos/cm (some meters display equivalent pS/cm units)? VIII. Settleable Residue Does the laboratory have an Imhoff Cone in good condition?_________________ Is the sample settled for 1 hour?___________________________________________ Is the sample agitated after 45 minutes? ________________________________ Are the following items documented:_____________________________________ Volume of sample analyzed? Note volume analyzed:_________________________ Date and time of sample analysis (settling start time)?________________ Time of agitation after 45 minutes of settling?_______________________________ Sample analysis completion (settling end time)?______________________ Are samples analyzed within 48 hours of collection?_________________________ Are results reported in ml/L? _______________________________ ____________ IX. Was a paper trail (comparing contract lab and on-site data to DMR) performed? If so, list months reviewed:. ~7/ X. Is follow-up by the Laboratory Certification program recommended?z No[ZJ Yes B] Yes No No No Yes No Yes Additional comments:XI. Electronic copies may be emailed to linda.chavis@ncdenr.gov. Please submit a copy of this completed form to the Laboratory Certification program at: DWQ Lab Certification, Chemistry Lab, Courier # 52-01-01 No No Yes ZJ Yes Yes Yes Yes Yes No No No No No No No No No No No No No [_____ No < J No - HYes Yes g) Yes Yes Yes Yes Yes Yes Vr—-Temperature-- ----- --------------- -------------- What instrument(s) is used to measure temperature? Check all that apply: pH meter B DO meter Conductivity meter Digital thermometer Glass thermometer________ Is the instrument/thermometer calibration checked at least annually against a NIST traceable or NIST certified thermometer? [/ ________ Are temperature corrections (even if zero) posted on the instrument/thermometer? Are samples measured in situ or on-site? [REQUIRED - there is no holding time for temperature]________ Are sample results reported in degrees C?________________ VI. Dissolved Oxygen DO meter make and model: z —' A Is the air calibration of the DO meter performed each day of use?_____________________ Are the following items documented:___________________________________________ Meter calibration?_____________________________________________________ Are samples analyzed within 15 minutes of collection?______________________________ Are results reported in mg/L?__________ VII. Conductivity Conductivity meter make and model:_______________________ Is the meter calibrated daily according to the manufacturer’s instructions? Note standard used (this is generally a one-point calibration):_________________________ Is a daily check standard analyzed? Note value:___________________________________ Are the following items documented:____________________________________________ Meter calibration?___________________ ___________________________________ Are samples analyzed within 28 days of collection?___________________ Are results reported in pmhos/cm (some meters display equivalent pS/cm units)?________ VIII. . Settleable Residue Does the laboratory have an Imhoff Cone in good condition? _______________________ Is the sample settled for 1 hour?_________________________________ _____________ Is the sample agitated after 45 minutes?_____________________________ ___________ Are the following items documented:______________________________ Volume of sample analyzed? Note volume analyzed:___________________________ _ Date and time of sample analysis (settling start time)?____________________________ Time of agitation after 45 minutes of settling?___________________________________ Sample analysis completion (settling end time)?__________________ Are samples analyzed within 48 hours of collection? Are results reported in ml/L? IS Yes g] Yes Yes No r X. Is follow-up by the Laboratory Certification program recommended? ^ ; r Yes [Z] Nd