HYDRO29550

• Permit No: M1986076
• IBM Index Class Name: Hydrology
• Doc Date: 7/17/1998
• Doc Name: WATER SAMPLE COMPLIANCE MONITORING ANALYSIS RESULTS FOR ATTACHMENT TO 1997 ANNUAL REPORT
• From: DGMC
• To: DMG
• Media Type: D
• Archive: No

DGMC, Hesperus, Color
Addition to 1997 ~ual Report
A B C D E
1
2 compliance monitoring water sample analysis results
3 ~ ~
4 sampling of underground water at lower portion of mine permit area
5
6 water
7 sample
8 number **
9 analyzed for units ref standard 97111001
10
11 Aluminum ug/L E 5000 ~ So
12 Antimony ug/L B 6 C 5
13 Arsenic ug/L A 50 3
14 Barium ug/L B 1000 fl
15 Beryllium ug/L B 4 G d. I
16 Boron ug/L A 750 I o
17 Cadmium ug/L B 5 <o,3
18 Chromium uglL A 50 c O
19 Copper ug/L E 1000 ~/ o
20 Cyanide mg/L B 0.200 < a,oo ~
21 Floride mg/L B 4 < a,o5
22 Gross Alpha (+ -Precision) pCi/L B 15 , ~ + - /, ~
23
24 Gross Beta (+-Precision)
Hardness as CaCO3 pCi/L
mg/I D 50 I p~_~+ - ~.9
25 Iron ug/L A 1000
26 Lead ug/L B 20 ~
27 Manganese ug/L A 1000 I < o
28 Mercury ug/L B 2 I c p I
29 Nickel I ug/L B 100 I 2 0
30 I Nitrate+Nitrite as N mg/L A 10 p,7/
31 pH units A 6.5-9.0 I ~, 6
32 Selenium ug/L A 10 I < 5
33 Silver I ug/L B 50 y, rd
34 Sulfate as SO4 mg/L A 250 ,~ , 7
35 Thallium ug/L B 2 <
36 Uranium ug/L c ~
37 Vanadium I ug/L E 100 I / O
38 Zinc ug/L E 2000 </D
39 I
40
41 ref A =Numeric Stand ards for San J uan River Basin, page 8
42 ref B =The Basic Standards for Groundwater 3.11.0, pa a 22
43 ref C =Numeric Standards for San Juan River Basin, page 3
44 ref D =Colorado Primary Drinking Water Regulations, page 47
_ 45 ref E =The Basic Standards for Groundwater 3.11.0, page 23
46
47
48
49 ** =water sample number consisting of 8 digits, with
50 digits 1 & 2 indicating the year,
51 digits 3 & 4 indicating the month
52 digits 5 & 6 indicating the day,
53 I digits 7 & 8 indicating sample taken that date
54 I
55 I I
56 I I I
dmg-1 \ dgmc 7 /dmg/ 5/13/1998