2018-05-08_HYDROLOGY - M1977300

• Permit No: M1977300
• IBM Index Class Name: Hydrology
• Doc Date: 5/8/2018
• Doc Name Note: Water Quality Data and Mine Pool Level Measurements for March 2018
• Doc Name: Water Quality Data and Mine Pool Level Measurements for March 2018
• From: Colorado Legacy Land
• To: DRMS
• Email Name: MAC
• Media Type: D
• Archive: No

BAO;Ca�lQrlroup Analytical Report 15
..... .............
Client:
Alexco Inc.
Analyte:
Calcium, Ca — pis
Prep Date:
03/208018
Analysis Date:
03/22/2018
Approved Method Source:
40 CFR 136.3
Prep ID:
Std. Methods 3030 E.
Analytical Method ID:
Std. Methods 3111 B.
Instrument:
iCE 3500, FLAA
Matrix:
Aqueous (water, wastewater, groundwater)
Sample volume used:
50 mL Dilution Factor: 10
Analyst:
SE
Location ID
Smn Date SCG # Results F_ lags MDL RL Units
MW -15
03/16/18 418229.A 14,272 1 25 125 pgtL
Client:
Alexco Inc.
Analyle:
Magnesium, Mg — Dis
Prep Date:
03/20/2018
Analysis Date:
03/22/2018
Approved Method Source:
40 CFR 136.3
Prep ID:
Std. Methods 3030 E.
Analytical Method ID:
Std. Methods 3111 B.
Instrument:
iCE 3500, FLAA
Matrix:
Aqueous (water, wastewater, groundwater)
Sample volume used:
50 mL Dilution Factor: 10
Analyst:
SE
Location ID
Smn Date
SCC t1
Results
Flags
MDL
RL
Units
MW -15
03'16.18
418229.A
6,189
]
12
3l
pg/L
Qualifiers
E extrapolated valuc Value exceeds calibration range
11 Analysis exceeded holding time
J Cstimated value detected below the RL/MRL
S Spike recovery outside acceptance limits
U — Analyie not detected
X See case narrative
Confidential and PH%ileged
11 -Apr -1 S