NC0062855_Lab Evaluation Results_20050921

September 21, 2005
5251
Mr. Brant Sikes
Town of Robbins WWTP
PO Box 1085
Robbins, NC 27325-
SUBJECT: Performance Evaluation Results
Dear Mr. Sikes:
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 23 2005
The performance evaluation (PE) results submitted by your laboratory from the ERA Proficiency Testing Study WP
126 have been received and evaluated. The table below 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. A
"Fail" entry requires a follow up sample to be analyzed and reported to this office within 60 days. A date entered
beside the "Fail" entry represents the completion deadline for this PE follow up.
Parameter/Method; _. :,_..,
PE Status,..,,<
ollow Up�e
i,
RESIDUAL CHLORINE, Std Method 4500 CI G
Pass ERA WP-126
DISSOLVED OXYGEN, Std Method 4500 0 G
N/A
pH, Std Method 4500 H B
Pass ERA WP-126
TEMPERATURE, Std Method 2550B
N/A
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,
Norman L. Good
Laboratory Section
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
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