HYDRO29547

• Permit No: C1981019
• IBM Index Class Name: Hydrology
• Doc Date: 3/8/2005
• Doc Name: Notification Letter
• From: Colowyo Coal Company L.P.
• To: WQCD
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

Laboratories
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' 2773 Downhill Drive Steamboat Springs, CO 80487 [phone] ;~ ,~., e
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Kennecott Energy Co: Cglolruyo Coal Co. LP ACZ Project ID: L49850
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L4985D-0t WG185531 Lead, total recoverable M200.7 ICP MA One spike recovery was outsitle of the acceptance limits;
the tluplimta spike recovery antl the RPD were wtlhin the
~, acceptance limits.
Manganese, total recoverable M200.7 ICP M3 The amuraq o1 the spike recovery value is reduced since
the analyte concentration in the sample is disproportionate
b spike level. The nrethod contrel sample recovery was
acceptable.
WG185453 Total Hol Plate Digestion M200.21CP D3 Sample dilution required due to insufficient sample.
WG185522 Lab Filtration SM 3030 B TB Analyte is net mveretl by NELAC mrtifcate 0211tCA, or
ACZ tloes net maintain NELAC mrtifimtion for this anayle.
WGt85244 lab Filtration 8 Addification SM 3030 B TB Analyle rs nd mveretl by NELAC mNfimte 02111CA, or
ACZ tloes not maintain NELAC mrtgimtion for this anayle.
WG185262 Nilnle as N, tlissolved M363.2- ANamaletl Cadmium TB Analyle is not covered by NELAC mrtifimte 02111CA, or
Reduction ACZ does not maintain NELAC certification for this anatyte.
WG105267 Phosphoms, ortho tlissolvetl M385.t - Automatetl Ascorbic RA Relative Pemant DiBerenm (RPD) ezmetled limik sample
Acitl concentrations are less than 10x the MDL.
WGt85650 Resitlue, Filterable (TDS) ~180C M180.1 -Gravimetric B7 Target analyta detected in methotl blank at or above
method reporting limit Sample value was > 10X the
comm~tration in the method blank.
M 160.1 -Gravimetric HC Initial analysis within holding time. Reanalysis was past
holtling time which was required tlm to a qC failure tluring
the initial analysis.
L49850-02 WG785467 Iron, total M200.71CP BB Target analyte tletected in calibration blank at or above
methotl reporting limit. Sample value was > 10% the
concentration in the mlibretion blank.
WG185622 Lab Filtration SM 3030 B TB Analyle is not mveretl by NELAC mrt~cate 02111CA, or

~'I ~ ~ WG105650
Residue, Filterable (TDS) (oj180C
M180.1 -Gravimetric
B7 ACZ does not maintain NELAC mrti/ication for this analyte.
Target analyte detected in method blank at or above
methotl mpoNng limit. Sample value was > 10X the
comm~tration in the method blank.
M160.t - Gmvimetnc HC Initial analysis within hpitling 8me. Reanalysis was past
holtling time which was required tlm to a DC failure tludrg
the initial analysis.
L49850-g3 WG185467 Iron, total M200.71CP BB Target analyte tletected in calibration blank at or above
method reporting limit. Sample value was> 10X the
concentration in the calibration blank.
WG185506 Total Recoverable Digestion M200.21CP D3 Sample dilution raquiretl due to insuRcienl sample.
WG185522 Lab Filtration I SM 3030 B TB Analyla is not coveretl by NELAC certificate 02N1CA, pr
ACZ does not maintain NELAC mrtilimtlon for this anayte.
WG185244 Lab Filtration 8 Acitlilimtion SM 3030 B TB Analyte is not covered by NELAC mrtificate 0211tCA, or
ACZ tloes not maintain NELAC mdRimtion for this analyte.
WG785262 Nitrite as N, dissolved M353.2 - ANomaletl Cadmium TB Analyla is not covered by NELAC mdificale 02111CA, or
Retluclion ACZ does not maintain NELAC certification far this anatyfe.
WGt85267 Phosphoms, ortho dissolved M365.1 -Automated Ascorbic RA Relative Percent OiRerenm (RPD) ezmeded limit; sample
Acitl comm~trations are lass than tOZ the MDL.
WG185650 Resitlue, Filterable (TDSj ~180C Mt60.t - Gravimetdc 87 Target analyte detectetl in method blank al or above
metMtl reporting limit Sample value was > t0%the
comm~tabon in the methotl blank.
M160.1 -Gravimetric F/C Intial analysis within holding time. Reanalysis was Dast
holding time which was required due to a qC failure during
the initial analysis.
L49850-04 WG105522 Lab Filtration SM 3030 B TB Analyle is not covered by NELAC certificate 02tNCA, or
ACZ does not maintain NELAC mrti/imtion for this analyle.
WGt85650 Residua, Filterable (TDS) (aj180C M160.1 -Gravimetric 87 Target analyte tletedad in methotl blank at or above
methotl reporting limit. Sample value was>10%the
comm~tration in lha method blank.
Mt60.1 - Gravimetdc HC Initial analysis within holding time. Reanalysis was past
holding time which was required due to a qC failure during
the initial analysis.
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EXTLtUAL.11.20.02.07
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