2007-03-27_REPORT - C1980006

• Permit No: C1980006
• IBM Index Class Name: REPORT
• Doc Date: 3/27/2007
• Doc Name: 2006 Annual Hydrology Report
• From: Northwest Colorado Consultants Inc
• To: DRMS
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Email Name: JHB
• Media Type: D
• Archive: No

Laboratories, Inc.
2773 Downhill Drive Steamboat Springs, CO 80487 [phone]
-1 ~
L56030-06 WG204746 Nitrate/NiMte as N, tlissolved M353.2 -Automated Cadmium R4 Relative Percent O'rfference (RPD) was not used for data
Reduction validation because the sample concentra0on is roo law for
accurate evaluation (< tOx MDL).
Nitrite as N, dissolved M353.2 -Automated Cadmium R4 Relative Percent Dfference (RPD) was not used for data
Reduction validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG204928 Sulfate SM4500 SG40 RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration Is too low far
accurate evaluation (< tOx MDLJ.
L5W30-07 WG204746 NitratefNitrite as N, dissolved M353.2-Automated Cadmium PA Relative Percent Difference (RPOj was not used for data
Reduction validation because the sample concentration is too low far
acwrate evaluation (< 10x MDLJ.
NIMte as N, dissolved M353.2 -Automated Cadmium RA Relative Percent Difference (RPD) was not used for data
Reduction validation because the sample cencentmtion is toe low for
accurate evaluation (< 10x MDLJ.
WG204928 Sulfate SM4500 SD4-D RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is roo law for
acwmte evaluation (< 10x MDLJ.
L56030-08 WG205008 Magnesium, tlissolved M200.7 ICP MA Recevery for either the spike or spike duplicate was outsitle
of the acceptance limits; the RPD was within the
acceptance limits.
Sodium, dissolved M200.7 ICP M4 Recovery for either the spike w spike duplicate was outside
of the acceptance limits; the RPD was within Ne
acceptance limits.
WG204746 Nitrate/Nitrite as N, dissolvetl M353.2 -Automated Cadmium R4 Relative Percent Difference (RPD) was not used for data
Reduction validation because the sample concentration is too low far
accurate evaluation (< 10x MDLJ.
Nitdte as N, dissolved M353.2 -Automated Cadmium RA Relative Percent Difference (RPD) was not used for tlata
Reduction validation because Ne sample mncentratlon is too low for
accurate evaluation (< 10x MDLJ.
WG204928 Sulfate SM4500 S04-D R4 Relative Percent Difference (RPD) was not used for data
validation because the sample wncentmtion is toe low for
acwrate evaluation (< tOx MOL).
REPAD.15.06.05.01
L56030: Page 13 of 19
Kerr Coal Company ACZ Project ID: L56030