1985-12-22_HYDROLOGY - M1984049

• Permit No: M1984049
• IBM Index Class Name: Hydrology
• Doc Date: 12/22/1985
• Doc Name: HYDROLOGIC EVALUATION PRIDE OF THE WEST TAILINGS POND
• Media Type: D
• Archive: No

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Table No. 10: Recommended Monitoring Program
Site Description Source Type Frequency
Months
9 Monitor well M-15 GW W,B,O 6
10 Monitor well M-17 GW W,B,O 1
17 Monitor well M-78 GW W,B,O 6
12 Monitor well M-19 GW W,B,Q 6
13 Monitor well M-20 GW W,B,O 6
14 Monitor well M-21 GW W,B,O 6
15 Monitor well MW-1 GW W,B,O 3
16 Monitor well MW-3 GW W,B,O 3
17 Monitor well MW-4 GW W,8,0, 3
18 Observation well P-3 GW W 1
19 Observation well P-4 GW W 1
21 Decant pond SW W 1
22 Decant pipe outfall SW 0 1
23 East branch, Animas River SW B,O 1
24 Animas River below SW BC,O 3
confluence o f branches
25 Seepage pond outfall SW W,BC,O 1
26 Monitor well M-16 GW W,B,O 3
27 Monitor well M-1 GW W,B,O 3
28 Interceptor drain pipe GW B,0 1
discharge
29 Monitor well MW-2 GW W,B,O 3
3D Interceptor drain outfall SW B,0 1
31 Animas River above 30 SW BC,O 3
32 Observation well P-2 GW W 7
33 Emergency po nd outfall SW O ~
34 Emergency po nd SW W,B,O 3
W = Water level, measure monthly
B = Base line, sample quarterly far 4 quarters
BC = Base line for permit application
O = Operational, frequency is that given in table
* Daily, when discharging
A monthly frequency is recommended for sites 10 and 23
because of the greater passibility pollution from the
seepage water from the old pond. Monthly frequency is also
recommended for the interceptor drain pipe outfall due to
part of the facility being located under the new tailings
pond.
Recommended ground water sample parameters conferm to
effluent limit metal parameters for base and precious metals
flotation mills with the addition of certain metals and
cations which might be indicative of an er.cursion. Dissolved
concentrations, not total recoverable, are recommended in
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