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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 <br />Bowie No. 2 Mine will not have significant adverse impacts on the surface or <br />subsurface water which is within or adjacent to the permit area. The <br />hydrologic monitoring locations, shown on Map 9 are: <br />Springs will be monitored quarterly. Depending on weather conditions, the <br />first quarter monitoring event may be delayed until April or May. Field <br />parameters will be measured each quarter and a full suite sample will be <br />obtained each quarter from all springs which have a flow of five gallons per <br />minute or more. Springs 2 -4, 2 -5, 2 -6, 2 -7 and 2 -8 will be removed from the <br />monitoring program since they are inaccessible due to a slide. <br />Stock Ponds will be monitored quarterly. Depending on weather conditions, <br />the first quarter monitoring event may be delayed until April or May. The <br />following information will be collected for the ponds; 1) inflow; 2) outflow; and <br />3) water level below spillway outlet or depth of water in pond measured from <br />the bottom of the pond. <br />The following fifteen drill holes will be monitored: DH -15, DH -25, DH -38, DH- <br />39, DH-49, DH -67B, DH -67D, DH- 67Abv, DH- 67BIw, TC- 03- 01(B), TC- 03 -02, <br />CWI- DH -58, CWI- DH -60, 2010 -1 SS and 2010 -1 B. Depending on weather <br />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 <br />will be obtained semi - annually during the second and fourth quarters. <br />Monitoring wells 2010 -1 SS and 2010 -1 B will be mined through during 2015. <br />The monitoring wells will be replaced by down gradient points of complinace. <br />Monitoring of DH -65 will be suspended. The well has ceased to yield any <br />information. The field technician is unable to determine water depth or obtain <br />a sample from the well due to a coating inside of the well. <br />The Deer Trail Ditch will be monitored at the designated upstream and <br />downstream monitoring locations (designated "DTD" on Map 9). Field <br />parameters will be measured each quarter. A full suite sample from List 1 <br />will be obtained semi - annually during the second and fourth quarters. During <br />August of each year a sample will be obtained and analyzed for the <br />parameters on List 2. <br />PR -14 2.05-124 06/14 <br />