2021-07-21_PERMIT FILE - C1981019 ‎(5)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 7/21/2021
• Doc Name: Point of Compliance Well Investigation Report
• Section_Exhibit Name: Exhibit 07 Item19 Point of Compliance Well Investigation Report
• Media Type: D
• Archive: No

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POC-96.6 / 13 / 50%
POC-80.68 / 3 / 57%
POC-50.12 / 0.72 / 14%
POC-20.031 / 0.07 / 0%
POC-130.03 / 0.06 / 0%
POC-120.19 / 1.2 / 14%
POC-110.06 / 0.27 / 0%
POC-60.094 / 0.35 / 14%
POC-150.047 / 0.18 / 0%
POC-10.084 / 0.44 / 14%
POC-30.025 / 0.025 / 0%
POC-160.025 / 0.025 / 0%
POC-140.073 / 0.36 / 14%
POC-100.025 / 0.025 / 0%
NGSW0.025 / 0.025 / 0%
MT-95-020.025 / 0.025 / 0%
GOSSARD WELL0.025 / 0.025 / 0%
Mil k CreekWilsonC r e ek JubbCreekTaylorCreekGoodSpringCr eek
Co Rd 17
State Hwy 13Co Rd 51Moffat County Rd 180
Co Rd 32
14
27
34
35
26
36
22
36
31
25
23
15
35
24
13
34
31
30
18
19
11
3025
10 12
2627
32
07
16
29
21
32
28 29
33
20
17
09
06030201 05
08
04
4N 93W 4N 92W
5N 93W 5N 92W
3N 93W 3N 92W
M o f f a t C o u n t y
Coordinate System:NAD 1983 State Plane,Colorado North Zone, FeetNotes:Dissolved Iron concentrations compared toDrinking Water Groundwater Standard = 0.3 mg/lColorado Regulation No. 41Statistics for Permanent Wells NGSW, MT-95-02, and Gossard Well based on sampling from 2015 - 2020
Legend
Permanent Well Sample R esu lt (Avg/M ax/% Exceedance)
!(Average Below Standard
!(Average Above Standard
Temporary Well Sample Result (Avg/M ax/% Exceedance)
!A Average Below Standard
!A Average Above Standard
Stream
Colowyo Mine Open Pit Extent
Ditch
Mine Permit Boundary
Township
Section
Pond
County Boundary
Road
Alluvial Valley
Figure 4 Colowyo MineTemporary Monitoring Wells Dissolved Iron Statistics(Regulation 41 Comparison)October 2019 to November 2020 Rio Blanco and Moffat Counties, ColoradoJanuary 2021
Designed
Drawn
Checked
Peer Review
Project Manager
Project Number
DE
DE
MS
MF
AB
60614862
7595 Technology Way, Suite 200Denver, CO 80237, United StatesT [phone]
0 2,000 4,0001,000
Scale in Feet
µ