NC0043176_Lab Evaluation Results_20050920

September 20, 2005
115
Mr. Donrie Dukes
Dunn Black River WWTP Lab.
P.O. Box 1065
Dunn, NC 28335
SUBJECT: Performance Evaluation Results
Dear Mr. Dukes:
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
SEP 2.12%5
The performance evaluation (PE) results submitted by your laboratory from the AbsoluteGrade PT Program Study
DMRQA-25 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.
Your NC PE requirement for 2005 has been satisfied for all of your certified parameters and methods. You
are not required to submit additional results to this office for the calendar year 2005. Should a PE provider notify
us of a failure on one of your certified parameters, you will be required to analyze add submit a follow up blind PE
result. 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,
G7410(1
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
NMCarolina
Carolina
�turally
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CERT # 115
2005 PERFORMANCE EVALUATION STATUS YEAR TO DATE
9/20/2005
} k Paramter/Method, '` s,...• ... 1 _,
r._L:.= PE Status., ,_s.; '
;Follow Up D,ue!
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
Pass ERA WP-125
NO2 + NO3 NITROGEN, Std Method 4500 NO3 E
Pass Absolute DMRQA25
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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