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(3)(b)(iv) <br />Hydrologic Monitoring Plan <br />The following monitoring plan is designed to provide data which will verify the Bowie <br />No. 2 Mine will not have significant adverse impacts on the surface or subsurface <br />water which is within or adjacent to the permit area. The hydrologic monitoring <br />locations, shown on Map 9 are: <br />Springs will be monitored quarterly. Depending on weather conditions, the first <br />quarter monitoring event may be delayed until April or May. Field parameters will be <br />measured each quarter and a full suite sample will be obtained each quarter from all <br />springs which have a flow of five gallons per minute or more. Springs 2-4, 2-5, 2-6, <br />2-7 and 2-8 will be removed from the monitoring program since they are inaccessible <br />due to a slide. <br />Stock Ponds will be monitored quarterly. Depending on weather conditions, the first <br />quarter monitoring event may be delayed until April or May. The following <br />information will be collected for the ponds; 1) inflow; 2) outflow; and 3) water level <br />below spillway outlet or depth of water in pond measured from the bottom of the <br />pond. <br />The following ten drill holes will be monitored: DH -39, DH -49, DH -67B, DH -67D, DH- <br />67Abv, DH-67BIw, CWI-DH-58, CWI-DH-60, 2010-1 SS and 2010-1B. Depending on <br />weather conditions, the first quarter monitoring event may be delayed until April or <br />May. Field parameters will be measured each quarter. A full suite sample will be <br />obtained semi-annually during the second and fourth quarters. In 2014 the Operator <br />unsuccessfully attempted to rehabilitate TC -03-01(B) and TC -03-02. See HydoGeo <br />November 2014 report in Volume III. Wells TC -03-01(B) and TC -03-02 will no longer <br />be monitored. D -Seam monitoring wells DH -15, DH -25 and DH -38 can no longer <br />be monitored since all three have damaged well casings. The Operator commits to <br />installing a new D -Seam monitoring well in the general location of DH -15 by July 31, <br />2016. <br />Monitoring of DH -65 is suspended. The well has ceased to yield any information. <br />The field technician is unable to determine water depth or obtain a sample from the <br />well due to a coating inside of the well. <br />The Deer Trail Ditch will be monitored at the designated upstream and downstream <br />monitoring locations (designated "DTD" on Map 9). Field parameters will be <br />measured each quarter. A full suite sample from List 1 will be obtained semi- <br />annually during the second and fourth quarters. During August of each year a <br />sample will be obtained and analyzed for the parameters on List 2. <br />TR -99 2.05-124 03/16 <br />