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~ ~ III IIIIIIIIIIIII III ~~
<br />STATE OF COLORADO
<br />Roy Romer, Gove
<br />DEPARTMENT OF NATURAL RESOURCES
<br />MINED LAND RECLAMATION DIVISION
<br />FRED R. BANTA, Dlreetor
<br />DATE: March 30, 1989
<br />T0: Cathy Begej, Jeff Clayton, Carl Mount
<br />FROM: Tim King O
<br />RE: Seneca II and Seneca IIW AHR
<br />Seneca II Ground Water
<br />It appears that each ground water site was monitored, and all parameters were
<br />tested. However, the following sites showed no parameters at all, but did
<br />show depth to water: GW-42P1, GW-525, GW-565. The frequency was twice
<br />annually at each site. However, the following sites showed only one sample:
<br />GW-S8, GW-S8P1, GW-559, GW-560, GW-563, GW-564.
<br />Throughout the site examinations the following parameters were exceeded
<br />consistently, in order of frequency of exceedance: Sulfide, Sulfate,
<br />Manganese, and Iron.
<br />Seneca II Surface Water
<br />It appears that each surface water site was monitored, and all parameters were
<br />tested, except in cases of no-flow, or light-flow. However, the following
<br />sites tested less than the required number of parameters: Springs #1, i12, #3,
<br />#5, spoil springs #1 and #6. It also appears that the detection limits for
<br />Mercury were not met. All field parameters were monitored monthly except in
<br />cases of no-flow.
<br />Throughout the site examinations, the following parameters were exceeded
<br />consistently in order of frequency of exceedance: Total Dissolved Solids,
<br />Silver, Sulfate, Dissolved Manganese, Aluminum, Total Iron, Total Manganese,
<br />Dissolved Iron. This matches the Seneca IIW surface water analysis.
<br />Seneca IIW Ground Water
<br />It appears that each ground water site was monitored, and all paramenters were
<br />tested. However, the following sites showed no parameters at a11, but did
<br />show depth to water: GW-S2W-14-0, GW-S2W-16-0, GW-S2W-16-W. Site GW-52W-14W
<br />showed no parameters or depth to water. The frequency varied at each site.
<br />However, the following sites required three samples but showed two or less:
<br />Temple Well, GW-S2W-15-0, GW-S2W-17-0, GW-S2W-18-0, GW-S2W-15W, GW-S2W-17W,
<br />GW-S2W-18W.
<br />215 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866.3567
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