The URL can be used to link to this page

Home My WebLink About#5135-final INSPECTION REPORT ROUTING SHEET To be attached to all inspection reports in-house only. Laboratory Cert. #: 5135 Laboratory Name: Craven County Wood Energy L. P. Inspection Type: Field Maintenance Inspector Name(s): Todd Crawford Inspection Date: June 9, 2010 Date Report Completed: June 11, 2010 Date Forwarded to Reviewer: June 11, 2010 Reviewed by: Chet Whiting Date Review Completed: June 11, 2010 Cover Letter to use: Insp. Initial _ Insp. Reg. X Insp. No Finding Insp. CP Unit Supervisor: Dana Satterwhite Date Received: June 11, 2010 Date Forwarded to Alberta: June 11, 2010 Date Mailed: June 14, 2010 _____________________________________________________________________ On-Site Inspection Report LABORATORY NAME: Craven County Wood Energy L. P. NPDES PERMIT #: NC0075281 ADDRESS: 201 Executive Parkway New Bern, NC 28562 CERTIFICATE #: 5135 DATE OF INSPECTION: June 9, 2010 TYPE OF INSPECTION: Field Maintenance AUDITOR(S): Todd Crawford LOCAL PERSON(S) CONTACTED: Ray Bonner and Harry Purvis I. INTRODUCTION: This laboratory was inspected to verify its compliance with the requirements of 15A NCAC 2H .0800 for the analysis of environmental samples. II. GENERAL COMMENTS: The facility has all the equipment necessary to perform the analyses. Technical Assistance documents for all certified parameters were provided at the time of the inspection. III. FINDINGS, REQUIREMENTS, COMMENTS AND RECOMMENDATIONS: Documentation Comment: The laboratory is documenting the received and opened dates on the bottles of purchased standards and reagents but does not have a system of traceability beyond the life of the bottle. The North Carolina Wastewater/Groundwater Laboratory Certification document, Quality Assurance Policies for Field Laboratories, states: All chemicals, reagents, standards and consumables used by the laboratory must have the following information documented: Date Received, Date Opened (in use), Vendor, Lot Number, and Expiration Date. A system (e.g., traceable identifiers) must be in place that links standard/reagent preparation information to analytical batches in which the solutions are used. Documentation of solution preparation must include the analyst’s initials, date of preparation, the volume or weight of standard(s) used, the solvent and final volume of the solution. This information as well as the vendor and/or manufacturer, lot number, and expiration date must be retained for chemicals, reagents, standards and consumables used for a period of five years. Consumable materials such as pH buffers and lots of pre-made standards are included in this requirement. A form for documenting traceability of purchased standards and reagents as well as form documenting traceability of prepared standards and reagents was provided to the facility at the time of the inspection. No further response is necessary for this finding. Recommendation: The pH buffers purchased from Taylor Technologies do not come with expiration dates. It was recommended to the lab that they assign an expiration date 1 year from the date of opening. Page 2 #5135 Craven County Wood Energy L. P. Conductivity – Standard Methods, 20th Edition, 4500 H+ B Conductivity – EPA Method 120.1 Comment: The Automatic Temperature Compensator (ATC) check was attempted but performed incorrectly. The Technical Assistance for Field Analysis of Conductivity document states: The Automatic Temperature Compensator (ATC) must be verified by analyzing a buffer at 25° C (the temperature that conductivity values are compensated to) and a temperature(s) that bracket the temperature ranges of the samples to be analyzed. This may require the analysis of a third temperature reading that is > 25° C. The facility repeated the procedure and documentation was sent to the auditor prior to the completion of this report. No further response is necessary for this finding. Comment: Proper units of measure were not documented in the results column on the benchsheet. The North Carolina Administrative Code, 15A NCAC 2H .0805 (g) (1) states: Data pertinent to each analysis must be maintained for five years. Certified Data must consist of date collected, time collected, samples site, sample collector, and sample analysis time. The field bench sheets must provide a space for the signature of the analyst, and proper units of measure for all analyses. An updated benchsheet was sent to the auditor prior to the completion of this report. No further response is necessary for this finding. Residual Chlorine – Standard Methods, 20th Edition, 4500 Cl G Residual Chlorine – HACH Method 10014 ULR Recommendation: The sample delivery tubing on the HACH meter is becoming discolored and could begin to contaminate analyses. The tubing should be cleaned or replaced. Comment: The HACH meter internal calibration curve has been verified across a range of 10 -50 µg/L. While this range encompasses the facility’s discharge limit and the expected range of sample concentrations, it most likely will not encompass the concentration of a blind Performance Evaluation (PE) sample. Please be aware that all samples and PE sample concentrations must fall within the verified range of the meter. While samples may be diluted to fall within this range; dilution is a source of additional error and is not recommended. IV. PAPER TRAIL INVESTIGATION: The paper trail consisted of comparing field testing records and contract lab reports to Discharge Monitoring Reports (DMRs) submitted to the North Carolina Division of Water Quality. Data were reviewed for NPDES permit # NC0075281 for November, 2010. No errors were detected. While reviewing data for December, 2010, the auditor was informed that Washington Regional Office inspector, Jeff Manning, had been at the facility in March, 2010 and had performed a thorough paper trail investigation at that time. The auditor felt that the previous paper trail investigation was sufficient and discontinued further review. V. CONCLUSIONS: All findings noted during the inspection were adequately addressed prior to the completion of this report. The inspector would like to thank the staff for its assistance during the inspection and data review process. No response is required. Report prepared by: Todd Crawford Date: June 11, 2010 Report reviewed by: Chet Whiting Date: June 11, 2010