NC0043176_Lab Evaluation Results_20050817

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August 17, 2005
115
Mr. Donnie Dukes
Dunn Black River WWTP Lab.
P.O. Box 1065
Dunn, NC 28335
SUBJECT: Performance Evaluation Results
Dear Ms. Douglas:
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
AUGRECEllliED
192 j
DENR - FAYE71EIrLLE REGIONAL OFFICE
The performance evaluation (PE), results submitted by your laboratory from the ERA WP-125 Performance
Evaluation Study have been received and evaluated. The attached table represents the status for each of your
certified parameters and methods to date. A blank in the "PE complete" column indicates no PE yet recorded
for this calendar year. A "Pass" entry indicates your lab has satisfied the annual performance evaluation
requirement. Other information in this column indicates vendor and Study identification. A "Fail" entry requires
a follow up sample to be analyzed and reported to this office within 60 days. An N/A entry represents
parameter exemption from the performance evaluation requirement. A date entered beside the "Fail" entry
represents the completion deadline for this PE follow up.
To date the PE requirement has not been satisfied for all of your certified parameters and methods.
You are reminded that an acceptable performance evaluation (PE) result must be obtained for all certified
parameters which are available from the accredited vendors. Failure to submit a passing PE result by
December 31, 2005. will be considered a first miss. Failure to analyze and submit an acceptable follow up
sample result within 60 days or producing a second successive unacceptable result will result in decertification
for that parameter.
Please contact us at 919-733-3908 if you have questions or need additional information.
Sincerely,
7(170 ail
Norman L. Good
Laboratory Section
Enclosure
cc: James W. Meyer
Fayetteville Regional Office
Laboratory Section
1623 Mail Service Center; Raleigh, NC 27699-1623
4405 Reedy Creek Road; Raleigh, NC 27607
Phone [phone] / FAX [phone] / Internet www.dwglab.org
NorthCarolina
Naturally
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

CERT # 115
2005 PERFORMANCE EVALUATION STATUS YEAR TO DATE 8/17/2005
,„ _,. M._, _ �Parameter/Method; ; ;;y `..,. _, 1..,
. , PE Status;
.Follow .U::p Due,
BOD, Std Method 5210E
Pass ERA WP-125
COD, Std Method 5220C
Pass ERA WP-125
RESIDUAL CHLORINE, Std Method 4500 CI G
Pass ERA WP-125
.
COLIFORM FECAL, Std Method 9222D (MF)
Pass ERA WP-125
CONDUCTIVITY, Std Method 2510B
Pass ERA WP-125
DISSOLVED OXYGEN, Std Method 4500 0 G
N/A
AMMONIA NITROGEN, Std Method 4500 NH3 F
Pass ERA WP-125
TOTAL KJELDAHL NITROGEN, Std Method 4500 NH3 B
NO2 + NO3 NITROGEN, Std Method 4500 NO3 E
TOTAL PHOSPHORUS, Std Method 4500 P B5
Pass ERA WP-125
•
TOTAL PHOSPHORUS, Std Method 4500 P E
Pass ERA WP-125
pH, Std Method 4500 H B
Pass ERA WP-125
RESIDUE SUSPENDED, Std-Method 2540D- "-
Pass ERA WP-125
TEMPERATURE, Std Method 2550B
N/A
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