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HomeMy WebLinkAboutNC0005321_Lab Certfication Maintenance Inspection_19980515NORTH CAROLINA DEPARTMENT OF ENVIRONMENT !AND I NATURAL RESOURCES DIVISION OF WATER QUALITY May 15, 1998 525 Mr. Chuck Oxendine Buckeye Lumberton Inc. P. O. Box 1305 1000 East Noir Street Lumberton, NC 28359- SUBJECT: Laboratory Certification Maintenance Dear Mr. Oxendine: RECEIIVE 1 9. 1998 FAYE �a E'EV L,.LF AEG. OFFIc Inspection Enclosed is a report for the inspection performed on December 4, 1997 by Ms. Harvi C. Cooper. Within thirty days, please supply this office with a written item for item description of how these violations were corrected. A response is not required for comments or recommendations unless specifically requested. We are seriously concerned about the Failure - to analyze a Check standard for the BOD analysis violation found during the inspection. Ifthe violations cited in the enclosed report are not corrected, enforcement actions will be recommended. For cerfiification maintenance, your laboratory must continue to carry out the requirements set forth in 15A NCAC 2H .0800. Copies of the checklists completed during the inspection may be requested from this office. Thank you for your cooperation during the inspection. Please contact us at 919-733-3908 if you have questions or need additional information. Sincerely, Q/ YL 4' �/. i�' C• James W. Meyer Laboratory Section Enclosure cc: Harvi C. Cooper Norman L. Good Fayetteville Regional Supervisor • LABORATORY SECTION 4405 REEDY CREEK (ROAD, RALEIGH, NORTH CAROLINA 27607-6445 PHONE 91 9-733- 3908 FAX 919-733-6241 AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER ON -SITE INSPECTION REPORT' LABORATORY NAME & ADDRESS: Buckeye Lumberton Inc. 1000 East Noir Street Lumberton, NC 28359- CERTIFICATE NO.: 525 DATE OF INSPECTION: December 4, 1997 TYPE OF INSPECTION: Maintenance EVALUATORS: Harvi C. Cooper LOCAL PERSON CONTACTED: Eric Bolin and Ronald Radford 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 laboratory was clean and well organized. Instruments and facilities are well maintained. Several violations were found and some further quality control procedures have been recommended. 1 III. VIOLATIONS, REQUIREMENTS RECOMMENDATIONS AND COMMENTS: BOD Violation: Lab is not always documenting the time in and out of the incubator for BOD samples. Comment: The comment on the BOD checklist indicates that no time is recorded, but all BODs are initiated and taken off in the morning. 1 Requirement: Lab must document date and time in and out of the incubator for BOD samples. ref: 15A NCAC 2H .0805 (a)(7)(H) pg 6: Violation: A GGA check sample was not analyzed with every set of BOD samples. Page - 2 - Buckeye Lumberton, Inc. Comment: A GGA check sample was not included in the analytical batches set up on 10/11, 10/12, 10/25, 10/26, 11/8 or 11/9/97. These dates all represent weekend shifts. There are no instructions to include a GGA check sample in the standard operating procedure. Requirement: A 2% GGA. standard must be analyzed with each set of samples and the value must be 198 ± 30.5 mg/l. Ref: Standard Methods 18th Edition 5210 B (6) (a) Violation: Analyst indicated that corrective actions were taken when the GGA check sample was outside of method established control limits, but the corrective actions were not documented. Requirement: Any time quality control results indicate an analytical problem, the problem must be resolved and any samples involved must be rerun if the holding time has not expired. ref: 15A NCAC 2H .0805 (a)(7)(F) pq. 6 Supporting records shall be maintained as evidence that analytical quality control practices are being effectively carried out. ref: 15A NCAC 2H .0805 (a)(7) pq. 6 The laboratory must document the corrective action taken as evidence that quality control practices are followed. Recommendation: Recommend documenting corrective actions on the BOD bench worksheet. Total Residual Chlorine Violation: Corrective actions are not always documented when the control limits for slope efficiency for the Total Residual Chlorine ion selective electrode exceeds the control limits of 26 to 30 mVIas stated on the current bench worksheet. Comment: The slope documented is often high. Corrective actions are sometimes noted. Requirement: The laboratory's current standard operating procedure requires that corrective actions be taken when .control limits are exceeded. ref: BL- MP-101 Version 3 Issue B Supporting records Ishall be maintained as evidence that analytical quality control practices are being effectively carried out. ref: 15A NCAC 2H .0805 (a)(7) pq. 6 The laboratory must document the corrective action taken as evidence that quality control practices are followed. .Ammonia Comment: Calibration documentation for the Ammonia ion selective electrode indicates that manufacturer's criteria for slope efficiency is seldom met for the 0.1 to 1.0 mg/L calibration range. Most samples analyzed are greater than 1.0 mg/L and the daily limit on the DMR is approximately 11 mg/L. Recommendation: Conditioningthe electrode prior to use may be helpful. Samples are currently analyzed daily immediately following collection. Conditioning of the electrode would require a greater interval between analytical batches than daily analysis would allow Laboratory could either Page - 3 - Buckeye Lumberton, Inc. secure a second instrument and alternate use to allow time for conditioning, or preserve and batch the ammonia samples. If' these options are not desirable, we recommend calibrating from 1.0 to 10.0 mg/L and using 1.0 mg/L as the lower reporting "concentration. Another alternative would be calibrating from 0.5 to 5.0 mg/L using 0.5 mg/L as the lower reporting concentration. Requirement: Check electrode sensing element performance according to manufacturer's instructions to make sure that electrode is operating properly. ref: Standard Methods 18th Edition 4500-NH3 F. (4)(b)and (d) pq. 4-82 Lab must maintain documentation of calibration verification. All analytical records must be available for a period ol,f three years. ref: 15A NCAC 2H .0805 (a)(7)(G) pq. 6 Please submit a copy of the laboratory's calibration documentation for ammonia. Also include a:copy of the section of the laboratory's ion selective electrode manual with the manufacturer's acceptance range for slope efficiency. pH Violation: Control limits used for the calibration than ± 0.1 pH unit. check buffer are greater Comment: Lab is currently calibrating the pH meter with buffers at 4 and.7 pH units and checking the calibration with a buffer at,10 pH units. The lower and upper control limits used are 9.85 and 10,.15'pH units respectively. None of the values recorded for the check buffer were greater than 0.1 unit different from 10.0 units. Requirement: To validate calibration, immerse electrodes in a third buffer below pH 10, approximately 3 pH units different from the second calibration buffer; the reading should be within 0.1 unit for the pH of the third buffer. ref: Standard Methods 18th Edition Method 4500-H± (4)(a) pg. 4-68 Total Suspended Solids Comment: Lab is currently filtering from 25 to 50 effluent monitoring. mis of sample for Recommendation: Recommend filtering larger volumes ofisample to ensure that at least 1.0 mg residue is retained on the filter. The recommendations for selection of filter and sample sizes from Standard Methods 18th Edition are as follows: Choose sample volume to yield between 10 and 200 mg dried residue. If more than 10 minutes are required to complete filtration, increase filter size or decrease sample volume. When very low total suspended solids are encountered (less than 10 mg/L), less dried residue may be collected; compensate by using a high -sensitivity balance (0.002 mg). ref: Standard Methods 18th-Edition Method 2540 D. (3)(b) pq. 2-56 General Recommendation: Recommend increasing the documentation of reagent and standard preparation. Recommend the preparation of all reagents, standards and media be documented in a preparation log or logs. Traceable identifiers should link solution preparation information to analytical batches in which the solutions are used. Documentation of solutionlpreparation should include the analyst's initials, date of preparation, the volume or weight of standard used, the solvent and final volume of:the solution. This Page - 4 - Buckeye Lumberton, Inc. information as well as the vendor, manufacturer, lot number, and expiration date should be retained for primary standards or chemicals used. Comment: Lab checklists indicate that control limits have not been established for duplicate sample results. Duplicate values reviewed were within guidelines established in Table 1020:I in Standard Methods for the Examination of Water and Wastewater, 18th edition. , Recommendation: Table 1020:I in Standard Methods for the Examination of Water and Wastewater, 18th edition may be used as aiguide to determine whether the analysis of duplicates indicates an analytical problem. Recommend establishing statistical control limits for BOD.GGA check standard results as set forth in Standard Methods 1020B and 1030C. Recommendation: Recommend lab document the true value (including units of measure) of the accuracy check standard on all bench worksheets. Also recommend calculating the percent recovery as a system for documenting the validityof calibration. Another system for documenting the validity of accuracy check standards would be to calculate and 'document the range of acceptable concentrations for the accuracy check standards. Recommend the acceptance criteria for accuracy check standards be documented on the bench worksheets. IV. DATA REVIEW: Data review consisted of a review of the Chain of dustody procedure for North Carolina Wastewater/Groundwater samples to check for adherence to required preservation and hold times. Bench sheets land analytical reports for randomly selected dates from October 1996 through November 1997 were reviewed and compared to Discharge Monitoring Reports for the parameters on the laboratory's discharge permit number NC0005321.' Analytical reports were also reviewed for monitoring. required by land application permit number WQ0002932. No problems in properly calculating or transcribing data were detected. V. CONCLUSION: Five violations were cited. Three of the five violations cited relate to three supplemental requirements of the Laboratory Certification Program Administrative Code 15A NCAC 2H .0800. The laboratory's analytical quality assurance document must be updated to incorporate administrative code requirements. Two violations cited are method req4rementswhich must be included in the standard operating procedure for the specific analyses. One of the two method violations was minor and results; reported were still within method quality control limits. One of the method violations resulted in the method quality control check sample to be omitted from the analytical batch on six occasions. Enforcement action in the form of a civil penalty is will be recommended in relation tc this violation if it is found to have occurred again. Lab must submit evidence of corrective actions taken for all violations. Correction of the above cited violations should help this lab document the quality of data produced, and meet North Carolina certification requirements. Several of the recommendations are aimed at improving legal admissibility of data. Report prepared by: Harvi C. Cooper Date: February 20, 1998 Reviewed by: Norman L. Good Date: May 8, 1998