NC0050105_Lab Evaluation_20051122

November 22, 2005
5256
Mr. Chuck Baxley
Rockfish Creek Water Reclamation Facility
POBox1089
Fayetteville, NC 28302-
SUBJECT: Performance Evaluation Results
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
DENR-FRO
NOV 18 2U i
DWQ
Alan W. Klimek, P.E. Director
Division of Water Quality
Dear Mr. Baxley: "
The performance evaluation (PE) results submitted by your laboratory from the ERA Proficiency Testing Study
DMRQA-25 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.
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RESIDUAL CHLORINE, Std Method 4500 CI G
Pass ERA DMRQA-25
DISSOLVED OXYGEN, Std Method 4500 0 G
N/A
pH, Std Method 4500 H B
Pass ERA DMRQA-25
TEMPERATURE, Std Method 2550E
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. ood
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
None
rthCarolina
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