#5105_01_2014_FINAL

February 11, 2014
5105
Ms. Hope Walters
DuPont Company - Fayetteville Works
22828 NC Hwy. 87 W
Fayetteville, NC 28306
SUBJECT: North Carolina Wastewater/Groundwater Laboratory Certification (NC WW/GW LC)
Maintenance Inspection
Dear Ms. Walters:
Enclosed is a report for the inspection performed on January 28, 2014 by Nick Jones. Since the
finding(s) cited during the inspection were all corrected prior to the completion of the enclosed
report, a response is not required. The staff is commended for taking the initiative in correcting
the findings in such a timely manner. 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 electronic mail, or if you have questions or need additional information please
contact me at [phone].
Sincerely,
Gary Francies
Technical Assistance/Compliance Specialist
Laboratory Section
Enclosure
cc: master file
Nick Jones
DBNR DWR WQP 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,dw glab.org
An Equal Opporfunliy ` Arrirmanve Action Employer

INSPECTION REPORT ROUTING SHEET
To be attached to all inspection reports in-house only.
Laboratory Cert. #:
5105
Laboratory Name:
DuPont Company - Fayetteville Works
Inspection Type:
Field Maintenance
Inspector Name(s):
Nick Jones
Inspection Date:
January 28, 2014
Date Report Completed:
January 29, 2014
Date Forwarded to Reviewer:
January 29, 2014
Reviewed by:
Chet Whiting
Date Review Completed:
January 31, 2014
Cover Letter to use:
❑ Insp. Initial ❑ Insp. Reg.
❑ Insp. No Finding ❑ Insp. CP
❑ Corrected
Unit Supervisor/Chemist III:
Gary Francies
Date Received:
1/31/2014
Date Forwarded to Linda:
2/10/2014 �)✓
Date Mailed:
a) I l I A

LABORATORY NAME:
NPDES PERMIT #:
ADDRESS:
CERTIFICATE #:
DATE OF INSPECTION:
TYPE OF INSPECTION:
AUDITOR(S):
LOCAL PERSON(S) CONTACTED:
INTRODUCTION:
On -Site Inspection Report
DuPont Company - Fayetteville Works
NC0003573
22828 NC Hwy. 87 W
Fayetteville, NC 28306
5105
January 28, 2014
Industrial Maintenance
Nick Jones
Hope Walters and Jamie Lewis
This laboratory was inspected by a representative of the North Carolina Wastewater/Groundwater
Laboratory Certification (NC WW/GW LC) program to verify its compliance with the requirements
of 15A NCAC 2H .0800 for the analysis of environmental samples.
11. GENERAL COMMENTS:
The laboratory was clean and well organized. The facility has all the equipment necessary to
perform the analyses. Laboratory personnel communicate well with sample collectors and
coordinate sample analyses effectively to manage workload and holding times.
Contracted analyses are performed by TBL Environmental Laboratory, Inc. (Certification #37).
Current quality assurance policies for Field Laboratories and approved procedures for the
analysis of the facility's currently certified parameters were provided at the time of the
inspection.
III. FINDINGS, REQUIREMENTS, COMMENTS AND RECOMMENDATIONS:
Quality Control
Comment: The laboratory needs to increase the documentation of purchased materials and
reagents, as well as documentation of standards and reagents prepared in the laboratory. The
NC WW/GW LC Quality Assurance Policies for Field Laboratories document 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. 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

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#5105 - DuPont Company - Fayetteville Works
for a period of five years. Consumable materials such as pH buffers and lots of pre -made
standards are included in this requirement. Demonstration of acceptable corrective action (i.e.,
an updated traceability log which includes Date Received, Date Opened, Lot Number, and
Expiration Date) was received by email on 1/28/2014. No further response is necessary for
this finding.
Documentation
Comment: The benchsheet used by the laboratory did not contain all of the necessary labeling
information. No units of measure (S.U.) are associated with the pH meter calibration results on the
pH benchsheet. The Facility Name and instrument ID were not documented on the pH
benchsheet. The NC WW/GW LC Approved Procedure for the Analysis of pH document states:
The following must be documented in indelible ink whenever sample analysis is performed. 3.
Sample site including facility name and location, ID, etc. 12. Instrument identification. The North
Carolina Administrative Code, 15A NCAC 2H .0805 (g) (1) states: The field bench sheets must
provide a space for the signature or initials of the analyst, and proper units of measure for all
analyses. Demonstration of acceptable corrective action (i.e., an updated benchsheet which
includes proper units of measure for pH calibration, facility and instrument ID for pH) was received
by email on 1/28/2014. No further response is necessary for this finding.
Comment: The benchsheet used by the laboratory did not contain all of the necessary labeling
information. The Facility Name and instrument ID were not documented on the Temperature
benchsheet. The NC WW/GW LC Approved Procedure for the Analysis of Temperature
document states: The following must be documented in indelible ink whenever sample analysis
is performed. 3. Sample site including facility name and location, ID, etc. 9.
Thermometer/instrument identification. Demonstration of acceptable corrective action (i.e., an
updated benchsheet which includes facility name and instrument ID for Temperature) was
received by email on 1/28/2014. No further response is necessary for this finding.
Proficiency Testing
Comment: The laboratory is not documenting Proficiency Testing (PT) sample analyses in the
same manner as environmental samples. The NC WW/GW LC Proficiency Testing
Requirements document states: All PT sample analyses must be recorded in the daily analysis
records as for any environmental sample. This serves as the permanent laboratory record.
Notification of acceptable corrective action (i.e., a statement that all PT sample analyses will be
recorded in the daily analysis records as for any environmental sample.) was received by e-mail
on 1/29/2014. No further response is necessary for this finding.
PH — SM 4500 H+B-2000
Comment: Values were reported that exceed the method specified accuracy of 0.1 units.
Standard Methods, 4500 H+ B-2000, (6) states in part: However, ± 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. Notification of
acceptable corrective action (i.e., a statement that pH results would be reported to 0.1 units.)
was received by e-mail on 1/29/2014. No further response is necessary for this finding.

IV.
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#5105 - DuPont Company - Fayetteville Works
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
Resources. Data were reviewed for DuPont Company - Fayetteville Works (NPDES permit #
NC0003573 for August, September and October of 2013. No transcription errors were detected.
The facility appears to be doing a good job of accurately transcribing data.
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: Nick Jones
Report reviewed by: Chet Whiting
Date: January 28, 2014
Date: January 30, 2014