#5206 - 04- 2011 - FINAL

Beverly Eaves Perdue
Governor
5206
Mr. Tim Church
Town of Jefferson WWTP
P.O. Box 67
Jefferson, NC 28640
MIA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
Director
July 15, 2011
SUBJECT: North Carolina Wastewater/Groundwater Laboratory Certification (NC WW/GW LC)
Maintenance Inspection
Dear Mr. Church:
Dee Freeman
Secretary
Enclosed is a report for the inspection performed on April 28, 2011 by Jason Smith. I apologize for the delay in
getting this report to you. Where finding(s) are cited in this report, a response is required. Within 30 days of
receipt, please supply this office with a written item for item description of how these finding(s) were corrected.
For certification 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. If you wish to obtain an electronic copy of this report by email or if you have
questions or need additional information please contact me at 828-296-4677.
Sincerely,
Gary Francies
Unit Supervisor
Laboratory Section
CC: Jason Smith
Gary Francies
Master files
DENR DWQ Laboratory Section NC Wastewater/Groundwater Laboratory Certification Branch
1623 Mail Service Center, Raleigh, North Carolina 27699-1623
Location: 4405 Reedy Creek Road. Raleigh, North Carolina 27607-6445
Phone: [phone] \ FAX: [phone]
Internet: www.dwglab.org
North Carolina
Natun7liff
An Equal Opportunity \ Affirmative Action Employer Customer Service:1-877-623-6748 www.ncwaterquality.org

LABORATORY NAME:
NPDES PERMIT #:
ADDRESS:
CERTIFICATE #:
DATE OF INSPECTION:
TYPE OF INSPECTION:
AUDITOR(S):
LOCAL PERSON(S) CONTACTED:
Town of Jefferson WWTP
NCO021709 and NCO083470
P.O. Box 67
Jefferson, NC 28640
5206
April 28, 2011
Field Maintenance
Jason Smith
Tim Church
This laboratory was inspected to verify its compliance with the requirements of 15A NCAC 2H .0800 for
the analysis of environmental samples.
The laboratory was clean and well organized. The facility has all the equipment necessary to perform the
analyses. In addition to its own samples, the laboratory also analyzes samples for the Town of Jefferson
WTP.
Technical assistance documents for all certified parameters were provided to the laboratory at the time of
the inspection.
Findings A, B, and C are new policies that have been implemented by our program since the last
inspection.
III. FINDINGS, REQUIREMENTS, COMMENTS AND RECOMMENDATIONS:
Documentation
A. Finding: The laboratory needs to increase the documentation of purchased materials and
reagents.
Requirement: 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. Ref: Quality Assurance Policies for Field
Laboratories.

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#5206 Town of Jefferson WWTP
B. Finding: Data that does not meet all quality control requirements is not qualified on the Discharge
Monitoring Report (DMR).
Requirement: When quality control (QC) failures occur, the laboratory must attempt to
determine the source of the problem and must apply corrective action. Part of the corrective
action is notification to the end user. If data qualifiers are used to qualify samples not meeting
QC requirements, the data may not be useable for the intended purposes. It is the responsibility
of the laboratory to provide the client or end -user of the data with sufficient information to
determine the usability of the qualified data. Where applicable, a notation must be made on the
Discharge Monitoring Report (DMR) form, in the comment section or on a separate sheet
attached to the DMR form, when any required sample quality control does not meet specified
criteria and another sample cannot be obtained. Ref: Quality Assurance Policies for Field
Laboratories.
C. Finding: Proficiency Testing (PT) samples are not documented in the same manner as
environmental samples.
Requirement: The analysis of PT samples is designed to evaluate the entire process used to
routinely report environmental analytical results. Therefore, PT samples must be analyzed and
the process documented in the same manner as environmental samples. Ref: Quality
Assurance Policies for Field Laboratories.
Total Residual Chlorine — Standard Methods, 20th Edition, 4500 Cl G
D. Finding: The gel standard used to verify the calibration curve daily has not been assigned a true
value annually.
Requirement: Purchased "Gel -type" or sealed liquid ampoule standards may be used for daily
calibration verification only. These standards must be verified initially and every 12 months
thereafter, with the standard curve. The assigned values will be used for the next twelve
months, or until a new curve verification is performed. The gel standard verification must be
performed for each instrument on which they are to be used. If multiple instruments and/or
standard sets are used, each must have assigned values specific for the instrument and
standard set. Ref: Technical Assistance for Field Analysis of Total Residual Chlorine.
pH — Standard Methods, 201h Edition, 4500 H+ B
Temperature — Standard Methods, 20th Edition, 2550 B
Dissolved Oxygen — Standard Methods, 20th Edition, 4500 O G
E. Finding: The temperature sensing device on the pH meter and Dissolved Oxygen meter have
not been calibrated against a certified thermometer annually (every 12 months).
Requirement: All thermometers and temperature measuring devices must be checked every
12 months against a NIST certified or NIST traceable thermometer and the process
documented even if the instrument is not used for reporting temperature results. Ref: Technical
Assistance for Field Analysis of Dissolved Oxygen and Technical Assistance for Field Analysis
of pH.
Comment: The verification was performed on April 26, 2011 after this inspection was scheduled.
Prior to that, the last verification was performed in April, 2008. Failure to perform required annual
quality control procedures may compromise the scientific validity and legal defensibility of the
data.

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#5206 Town of Jefferson WWTP
F. Finding: The temperature corrections were not posted on the pH and Dissolved Oxygen meters.
Requirement: The temperature correction (even if it is zero) must be posted on the thermometer/
meter as well as in hard copy format (to be retained for 5 years). Ref: Technical Assistance for
Field Analysis of pH, Technical Assistance for Field Analysis of Dissolved Oxygen, and
Technical Assistance for Field Analysis of Temperature.
pH — Standard Methods, 20th Edition, 4500 H+ B
G. Finding: The temperature sensor of the pH meter was 1.5 °C off of the MIST reading. This meter
is not used to analyze and report temperature.
Requirement: The thermometer/meter readings must be less than or equal to 1 °C from the NISI
certified or NIST traceable thermometer reading. Ref: Technical Assistance for Field Analysis of
pH.
H. Finding: Data values are reported to 0.01 S.U.
Requirement: A variance of ± 0.1 pH unit represents the limit of accuracy under normal
conditions, especially for measurement of water and poorly buffered solutions. For this reason,
report pH values to the nearest 0.1 pH unit. Ref: Standard Methods, 20th Edition, 4500 H+ B. (6).
Dissolved Oxygen — Standard Methods, 201h Edition, 4500 O G
1. Finding: The time of collection is not documented.
Requirement: Data pertinent to each analysis must be maintained for five years. Certified Data
must consist of date collected, time collected, sample site, sample collector, and sample analysis
time. The field benchsheets must provide a space for the signature or initials of the analyst, and
proper units of measure for all analyses. Ref: 15A NCAC 2H .0805 (g) (1).
Comment: For analyses performed in situ (in stream or on site), a general statement reflecting
this may be added to the benchsheet and/or the column header may be modified to
"collection/analysis time".
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 Town of Jefferson WWTP (NPDES permit #NC0021709) and Town of Jefferson WTP
(NPDES permit #NC0083470) for June, 2010. No transcription errors were detected. The facility
appears to be doing a good job of accurately transcribing data.
Correcting the above -cited findings will help this lab to produce quality data and meet certification
requirements. The inspector would like to thank the staff for its assistance during the inspection and
data review process. Please respond to all findings.
Report prepared by: Jason Smith
Report reviewed by: Jeffrey R. Adams
Date: July 5, 2011
Date: July 8, 2011

INSPECTION REPORT ROUTING SHEET
To be attached to all inspection reports in-house only.
Laboratory Cert. #1
5206
Laboratory Name:
Town of Jefferson WWTP
Inspection Type:
Field Maintenance
Inspector Name(s):
Jason Smith
Inspection Date:
April 28, 2011
Date Report Completed:
July 5, 2011
Date Forwarded to Reviewer: July 7, 2011
Reviewed by:
Jeffrey R. Adams
Date Review Completed:
July 8, 2011
Cover Letter to use: _
Insp. Initial X Insp. Reg. Insp. No Finding _ Insp. CP _Corrected
Unit Supervisor:
Gary Francies
Date Received:
7/8/11
Date Forwarded to Linda
7/15/2011
Date Mailed: V-" I � � i i