2014-05-15_GENERAL DOCUMENTS - C1981014

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10/22/2014 State.co.us Executive Branch Mail -Request for Water Well Info on Vento Property STATE OF Berry - DNR, David <david.berry@state.co.us> COLORADO Request for Water Well Info on Vento Property message Hernandez - DNR, Daniel <daniel.hernandez @state.co.us> Thu, May 15, 2014 at 11:48 AM To: David Berry - DNR <david.berry@state.co.us> Hi Dave — Regarding your request yesterday for information about water wells on property owned by the Vento family, here is what I found: First, the Vento Property as I know it is depicted in the Southfield Permit as: • T20S, R69W, Section 19: SW1 /4 • T20S, R69W, Section 30: W1/2 of W1/2; NE1 /4 of NW1 /4. Second, Map 12 ( "Mine Area Surface and Ground Water Hydrology) presently shows 6 wells on the Vento Property: • MW -23 (NE1 /4 of SW1 /4 of Section 19; depicted on Map 12 as a "Groundwater Monitoring Well ") • MW -NW (NW1 /4 of SW1 /4 of Section 19; depicted on Map 12 as a "Groundwater Monitoring Well ") • Liberty 2 (SW1 /4 of SW1 /4 of Section 19; depicted on Map 12 as an "Inactive Dewatering Well ") • Zenith 2 (NE1 /4 of SW1 /4 of Section 19); depicted on Map 12 as an "Inactive Dewatering Well ") • MW -16 (NE1 /4 of NW1 /4 of Section 30); depicted on Map 12 as a "Groundwater Monitoring Well ") • Manley 3 (SW1 /4 of NE1 /4 of Section 30); well symbol on Map is not included in Map Legend; possibly an Inactive Dewatering Well) Third, according to Table 11 ( "Well Permits ") in the Southfield permit, Dorchester Coal had permits issued on 2/22/1980 for three wells on Vento Property. I believe these three wells are the Liberty 2, Zenith 2, and Manley 3 wells. However, a check of DWR's files indicates that in fact applications for these three wells, along with applications for eight other wells, were all denied on 2/22/1980. Fourth, I can find no record on DWR's website of well permits being issued for MW -16, MW -23 or MW -NW. Similarly, none of these three wells is listed in Table 11 ( "Well Permits ") in the Southfield permit. Finally, the groundwater monitoring plan for the Southfield Mine (Exhibit 25) requires monitoring of wells MW -16, MW -23, MW -65 (located on property other than Vento), and MW -NW. The groundwater monitoring plan additionally states on Page 4 of Exhibit 25 that, "the monitoring sites MW -7A, MW -713, MW-8, MW -10 and MW- 22 were originally included in the monitoring program. These wells have been intercepted by underground mining activities or have caved and have been eliminated from the monitoring network ". These last five wells (MW -7A, MW -7B, MW -8, MW -10, and MW -22) do not appear to be depicted on Map 12, nor listed in Table 11, nor listed on DWR's website, so I do not know at this time if any of these five wells were drilled on Vento property. I will ask Janet when she returns from Annual Leave tomorrow if she might happen to know the locations of these five wells. Dan Daniel I. Hernandez Senior Environmental Protection Specialist COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources https: / /mai l.google.com /mai I /u/0 / ?ui =2 &i k= b46be11 b9e&view =pt &search= i nbox &th= 146010036454fea6&si m l= 146010036454fea6 1/2