NC0026271_Regional Office Historical File Pre 2018 (53)

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August 20, 2004
5062
Mr. Brian Eades
Taylorsville WWTP
67 Main Ave Drive
Taylorsville, NC 28681-
SUBJECT: Laboratory Certification Maintenance Inspection
Dear Mr. Eades:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Enclosed is a report for the inspection performed on August 3, 2004 by Mr. Chet Whiting.
Where deficiencies are cited in this report, a response is required as well as for all lettered comments
and/or recommendations. Within thirty days of receipt, please supply this office with a written item for
item description of how these deficiencies, comments and/or recommendations were corrected. If the
deficiencies cited in the enclosed report are not corrected, enforcement actions will be recommended.
For certification maintenance, your laboratory must continue to carry out the requirements set forth in
15A NCAC 21-1.0800.
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 us at 919-733-
3908.
Sincerely,
?James W. Meyer
oratory Section
Enclosure
cc: Chet Whiting
. Mooresville Regional Office
Nose Carolina
Ntura!!il
Laboratory Section 1623 Mail Service Center; Raleigh, NC 27699-1623
4405 Reedy Creek Road; Raleigh, NC 27607
Phone [phone] / FAX [phone] / Internet: www.dwqlab.org
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On -Site Inspection Report
LABORATORY NAME:
ADDRESS:
CERTIFICATE NUMBER:
DATE OF INSPECTION:
TYPE OF INSPECTION:
EVALUATOR:
LOCAL PERSON(S) CONTACT:
I. INTRODUCTION:
Taylorsville, WWTP Field Parameter
67 Main Ave. Drive, Taylorville NC 28681
5062
August 3, 2004
Field Parameter (Maintenance)
Chet Whiting (Mr. W. Bell)
Mr. Brian Eades
The above named laboratory was inspected to verify compliance with 15A NCAC 2H .0800 for
the analysis of environmental samples.
II. OVERVIEW:
The facility was well organized and no deficiencies were observed. Personal were cooperative
and professional.
III DEFICIENCIES, REQUIREMENTS, COMMENTS, AND RECOMMENDATIONS:
GENERAL DOCUMENTATION:
COMMENT: Testing for two of the facilities listed on the Field Parameter Application is
performed on a per fee basis. A copy of the amendment document was sent to the laboratory
under separate cover. The status of the facility will be changed to commercial and an invoice
issued for the appropriate fee.
A. COMMENT: The thermometer is a traceable to NIST type. The date listed on the
documentation is 1996.
REQUIREMENT: At this time the thermometer needs to check vs. an NIST thermometer, or
another traceable thermometer can be purchased. Unlike NIST thermometers traceable
thermometers need to be checked annually. .
B. COMMENT: Temperature readings taken from the pH meter are reported in 0.1 degree
Celsius increments. The thermometer used to check the meter is in whole degree increments.
REQUIREMENT: Either report the temperature values as whole degrees, or check the meter
thermistor with a thermometer that is in 0.1 0 C increments.

Page 2
RESIDUAL CHLORINE:
C. COMMENT: An analytical reporting limit of 28 µg/L is below the lowest analytical standard for
the annual curve verification.
REQUIREMENT: The laboratory must analyze a standard at or below the reporting limit. The
laboratory may not report values below the lowest analytical standard included in the curve or
curve verification. Ref: 15A NCAC 2H .0805 (a) (7) (1).
Note: The above requirement applies to all analyses reported to the State of North Carolina.
D. COMMENT: The gel standards have not been checked prior to use.
REQUIREMENT: The value assigned is an estimated values within in a specified range. The gel
standards must be checked vs. a primary standard or checked on a freshly calibrated meter. The
value obtained is then assigned as the true value.
COMMENT: The value assigned to the gel used at this facility is 0.170 mg/L. A ± 10% criteria
range would give an acceptance range of between 0.153 — 0.187. Many of the readings were
below 0.160 mg/L. Since the true value of the standard is probably close to 0.160 mg/L it
appears that the standard 'and meter are less accurate than they expected.
'�
E. COMMENT: The pH meter is calibrated with three buffers, but not checked after calibration.
REQUIREMENT: The meter drift must be checked and verified to be within ± 0.1 pH units. This
may be accomplished by calibrating with two buffers (4,10) and checking a 7 buffer, or if the
meter is calibrated at 47 and 10 the 7 buffer can be checked immediately after calibration. Ref:
STANDARD METHODS 18th EDITION 4500 H+ B (4) (a)
DOCUMENTATION:
A random selection of data and DMRs for the three facilities listed on the application was
reviewed. No items other than those specified in the above report were observed.
IV CONCLUSION:
Correcting the above -cited comments and implementing the recommendations will help this
facility to produce quality data and meet certification .requirements. Please respond to all
numbered deficiencies and lettered comments.
Report prepared by Chet Whiting August 4, 2004