DEQ-CFW_00055984

NCDENR
North Carolina Department nfEnvironment amdNatnra1ReomUrces
Pat McCrory
Governor
5105
Ms. Hope Walters
DuPont Company ' Fayetteville Works
2J828NCHwy. 87VV
Attn: Waste Treatment
Fayetteville, NCJ83OG-
Division OfWater Resources
Water Quality Programs
Thomas A. Reeder
Director
Subjoot: North Carolina Wastewater/Groundwater Laboratory Certification
2013 Proficiency Testing Results
Dear Ms. Walters:
Secretary
John E. SkVa[2\ III
This is to acknowledge that we have ronakxed your proficiency testing (PT) roouko from ERAVV9-218.
Congratulations on obtaining acceptable results. This completes all proficiency testing noquinmrnanto
for your North Carolina Wastewater/Groundwater Laboratory Certification for 2013.
If additional proficiency testing results are submitted voluntarily during this proficiency testing calendar
year, they will be evaluated similarly and nnmodio| PTs will be required for any results graded
unacceptable.
Your proficiency testing report contained Method Omsohptk)no that are not compatible with your
laboratory's current certificate attachment. Only one version of Standard Methods is approved.
The approved methods now nufonunna by year rather than Edition. Revision and the nah*nanue
year should be included were applicable when reporting PT results. The following discrepancy
was noted:
In the futun*, please refer to your certificate attachment (i.o, certified parameter list) when selecting the
appropriate method for PT results reporting. This will onounn you receive proper credit for the parameter
method technologies onyour current certificate attachment. Arevised PTreport isnot required for the PT
results submitted eofar this year.
Contact me at 819-733-3908 ext. 241 or email [e-mail] if you have questions or if |
can be of further assistance.
Sincerely,
TonjoSprngor
Certification Auditor
Laboratory Section
cc: Dana Satterwhite
CEHRDAIR WQ"Lab."Tator\iSnoio`NC Labommq Dmm:ficmknDmnch
iK3 Mail: Service Center R'okdg.North Cmmina27��1�3
Lova|on44,.)8Ree�$Cm*kRoad. Rde:(O'unxhCsnolino2TKI7-644-5
Phone,. 919-733-3908\r9��7���m1