2009-08-28_HYDROLOGY - M2002004

• Permit No: M2002004
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/28/2009
• Doc Name: 1st Half, 2009 GW Report
• From: GCC Rio Grande, Inc.
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: BMK
• Media Type: D
• Archive: No

Evergreen Analytical, Inc.
4036 Youngfield Street, Wheat Ridge, Colorado 80033-3862
[phone]
Client Sample ID: MW-004 Lab Work Order: 09-3358
Client Project TD: Lab Sample ID: 09-3358-03
Date Collected: 5/12/09 Sample Matrix: Water
Date Received: 5/13109
DISSOLVED METALS
Method: E200.8 Prep Method: E200.8
Date Prepared: 5/22/09 Lab File ID: 090524A.B\042SMPL.D Dilution Factor: 1
Date Analyzed: 5/24/09 Method Blank: MB-19235 Lab Fraction ID: 09-3358-03A
Analytes CAS Number Result LQL Units
Antimony 7440-36-0 U 0.00200 mg/L
Arsenic 7440-38-2 U 0.00200 mg/L
Lead 7439-92-1 U 0.00100 mg/L
Selenium 7782-49-2 0.103 0.00200 M91L
Thallium 7440-28-0 U 0.00100 mg/L

Date Prepared: 5/29/09 Lab File ID: 090601A.B\039SMPL.D Dilution Factor: 1
Date Analyzed: 6/1/09 Method Blank: MB-19306 Lab Fraction ID: 09-3358-03A
Analytes CAS Number Result LQL Units
Cadmium . 744043-9 U 0.000500 mg/L
Copper 7440-50-8 U 0.0100 mg/L
Silver 7440-22-4 U 0.000200 mg/L

MERCURY, DISSOLVED - LOW
Method: E245.1 Prep Method: E245.1
Date Prepared: 6/l/09 Lab File ID: 60209 Dilution Factor: 1
Date Analyzed: 612109 Method Blank: MB-19314 Lab Fraction ID: 09-3358-03A
Analytes CAS Number Result LQL Units
Mercury 7439-97-6 0.034 0.020 ttg/L

TOTAL HARDNESS (CALC)
Method: SM 2340B Prep Method:
Date Prepared: 5/22/09 Dilution Factor: 1
Date Analyzed: 5122109 Lab Fraction ID: 09-3358-03A
Analytes CAS Number Result LQL Units
Total Hardness. as CaCO3/L 471-34-1 1300 1.2 mg/L CaCO3
Analyst Approved
Qualifiers: B - Analyte detected in the associated Method Blank, value not subtracted from result Definitions: NA - Not Applicable
E - Extrapolated value.Value exceeds calibration range LQL - Lower
H - Sample analysis exceeded analytical bolding time Surr - Surrogantitation limit
J - Indicates an estimated value when the compound is detected, but is below the LQL
S - Spike Recovery outside accepted limits
U - Compound analyzed for but not detected
X - See case narrative
¦ -Value exceeded the Maximum Contamination Level (MCA,), TCLP limit, or if
eorrrpaund is undetected, LQL exceeds MCL. Print Dale: 6/51M