#69 - 10 - 2011 - FINAL

INSPECTION REPORT ROUTING SHEET
To be attached to all inspection reports in-house only.
Laboratory Cert. #:
69
Laboratory Name:
Archie Elledge WWTP Laboratory
Inspection Type:
Field Maintenance
Inspector Name(s):
Chet Whiting
Inspection Date:
October 12 2011
Date Report Completed:
December 19 2011
Date Forwarded to Reviewer: December 19, 2011
Reviewed by:
Jason Smith
Date Review Completed:
December 20, 2011
Cover Letter to use: _
Insp. Initial X Insp. Reg. _ Insp. No Finding _ Insp. CP _Corrected
Unit Supervisor:
Gary Francies
Date Received:
12/20/2011
Date Forwarded to Linda:
12/28/2011
Date Mailed: -�

8®
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
December 28, 2011
69
Ms. Carol Bell
Archie Elledge WWTP Laboratory
2799 Griffith Road
Winston Salem, NC 27103
SUBJECT: North Carolina Wastewater/Groundwater Laboratory Certification (NC WW/GW LC)
Maintenance Inspection
Dear Ms. Bell:
Enclosed is a report for the inspection performed on October 12, 2011 by Chet Whiting, Jason Smith,. and Jeff
Adams. 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,
G c��
Gary Francies
Unit Supervisor
Laboratory Section
CC: Chet Whiting
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
One
NorthCarofina
rk"%"
An Equal Opportunity\ Affirmative Action Employer Customer Service: 1-877-623-6748 www.ncwaterquality.org

Page 2
#69 Archie Elledge WWTP Laboratory
Suspended Solids — Standard Methods, 18th Edition, 2540 D
A. Finding: Sample filtration for some samples takes up to one hour.
Requirement: If complete filtration takes more than 10 minutes increase filter diameter or
decrease sample volume. Ref: Standard Methods, 18th Edition, 2540 D. (3) (b)
Recommendation: The laboratory is using a gooch crucible filtration system. It is recommended
that the laboratory increase the filter diameter. Decreasing sample volume may not yield an
adequate reporting limit for compliance purposes.
The paper trail consisted of comparing laboratory benchsheets and contract lab reports to Discharge
Monitoring Reports (DMRs) submitted to the North Carolina Division of Water Quality. Data were
reviewed for NPDES permit # NC0037834 and NC0050342 for June, July and August, 2011. No
transcription errors were detected. The facility appears to be doing a good job of accurately
transcribing data.
V. CONCLUSIONS:
Correcting the above -cited finding and implementing the recommendation 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: Chet Whiting Date: December 19, 2011
Report reviewed by: Jason Smith Date: December 20, 2011

INSPECTION REPORT ROUTING SHEET
To be attached to all inspection reports in-house only.
Laboratory Cert. #:
69
Laboratory Name:
Archie Elledge WWTP Laboratory
Inspection Type:
Field Maintenance
Inspector Name(s):
Chet Whiting
Inspection Date:
October 12 2011
Date Report Completed:
December 19 2011
Date Forwarded to Reviewer: December 19 2011
Reviewed by:
Jason Smith
Date Review Completed:
December 20 2011
Cover Letter to use: _
Insp. Initial X Insp. Reg. _ Insp. No Finding _ Insp. CP _Corrected
Unit Supervisor:
Gary Francies
Date Received:
12/20/2011
Date Forwarded to Linda:
12/28/2011
Date Mailed:

LABORATORY NAME:
NPDES PERMIT #
q
CERTIFICATE #:
AUDITOR(S):
LOCAL PERSON(S) CONTACTED:
On -Site Inspection Report
Archie Elledge WWTP Laboratory
NCO037834 and NCO050342
2799 Griffith Road
Winston Salem, NC 27103
.•
October 12, 2011
Municipal Maintenance
Chet Whiting, Jason Smith, and Jeff Adams
Carol Bell
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 neat and well organized. Bench sheets were well designed and included pertinent
details that make the review process easier. The laboratory retains previously analyzed samples for use
as quality control checks. These are issued as blind performance samples to analysts. This is a unique
and innovative quality control procedure. Chemical receipt, reagent preparation and consumable
traceability were well documented.
Comment A few instances were observed of documentation indicating a preservation failure (the
presence of total residual chlorine) and no corrective action was taken. The North Carolina
Administrative Code, 15A NCAC 2H .0805 (a) (7) (N) states: "At any time a laboratory receives samples
which do not meet sample collection, holding time, or preservation requirements, the laboratory must
notify the sample collector or client and secure another sample if possible. If another sample cannot be
secured, the original sample may be analyzed but the results reported must be qualified with the nature
of the infraction(s) and the laboratory must notify the State Laboratory about the infraction(s). The
notification must include a statement indicating corrective actions taken to prevent the problem for
future samples." Notification of acceptable corrective action (i.e. a statement that total residual chlorine
test strips will be used to check de -chlorination of fecal coliform samples) was received by e-mail on
12/5/2011. No further response is necessary for this finding.
Comment: Adequate de -chlorinating agent was being added to neutralize the concentration of residual
chlorine in the samples. DPD powder was used to detect the presence of any residual chlorine. On
occasion a slight pink was detected that produced a reading of about 50 Ng/L when checked on a
pocket colorimeter. The pocket colorimeter is only accurate to concentrations of approximately 100
,ug/L. It is possible that an interference caused by manganese is producing the color. Using residual
chorine test strips to check for residual chlorine should eliminate this issue.

Page 2
#69 Archie Elledge WWTP Laboratory
Suspended Solids — Standard Methods, 18th Edition, 2540 D
A. Finding: Sample filtration for some samples takes up to one hour.
Requirement: If complete filtration takes more than 10 minutes increase filter diameter or
decrease sample volume. Ref: Standard Methods, 18th Edition, 2540 D. (3) (b)
Recommendation: The laboratory is using a gooch crucible filtration system. It is recommended
that the laboratory increase the filter diameter. Decreasing sample volume may not yield an
adequate reporting limit for compliance purposes.
The paper trail consisted of comparing laboratory benchsheets and contract lab reports to Discharge
Monitoring Reports (DMRs) submitted to the North Carolina Division of Water Quality. Data were
reviewed for NPDES permit ## NCO037834 and N00050342 for June, July and August, 2011. No
transcription errors were detected. The facility appears to be doing a good job of accurately
transcribing data.
V. CONCLUSIONS:
Correcting the above -cited finding and implementing the recommendation 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: Chet Whiting Date: December 19, 2011
Report reviewed by: Jason Smith Date: December 20, 2011