Laserfiche WebLink
<br />_ ~_ <br />3. If possible, surface water quality samples should be obtained above and <br />below the area affected by the mine in Starkville Gulch. This will indicate <br />the magnitude of any water quality changes nom occurring at the mine. <br />9. Pa ye 56 of the application states that Starkville Gulch is intermittent <br />in nature. Is this stz-eam recharged by ground water (alluvial or bedrock), <br />or is it actaally ephemeral in nature? <br />5. The applicant should characterize the foundation material anticipated to <br />be exposed during t':e construction of thepermaner.tdiversion. [:'iL this material <br />be similar to that exposed by the original channel' If not, the new material s}'rould <br />be analyzed to determine its physical and chemical properties. This information <br />will identify acid, alkaline, or toxic characteristics as cell as the durability <br />of the diversion. <br />YI. Hydrologic Balance: Ground [4a ter - Rules 2.04.5, 2.04.7, 2.0..3(4), 2.05.6(3) <br />and •1.05 <br />Deficiencies: <br />i. The applicant needs to provide a discussion, along :/ith appropriate maps <br />and cross-sections, which identifies and characterizes all F:nown Ioca1 and regional <br />aquifers which may 'be affected by the operation. The rationale by which conclusions <br />are reached and the names of the person(s) conducting the hydroloyic investigations <br />s;;ould be included (Rule 2.03.3(9)). <br />2. For all aquifers identified in the affected area, the recharge, storage, and <br />discharge characteristics should be described, in addition to the Iithology, <br />thicY.ness and extent of water bearing units. <br />3. Water quality information should be provided for each aquifer potentially <br />affected by the operation. <br />4. A spring and seep survey should be conducted c/ithin one mile of the mine <br />affected area. The source and quality of the water should b2 characterized. <br />Water quantity and quality measurements should also be obtained for all seeps, <br />springs and e/ells identified within the affected area. <br />5. The uses of the ground water in the areas should be listed. (later quality <br />analysis should be obtained for' all wells in the area that may be affected by <br />the operation. <br />6. Any water found in the minn_ now, or in the future, should be characterized <br />with regard to its source, quality, and quantity (rate of inflow). The applicant <br />should attemrit to predict the amount and quality of water anticipated to he <br />encountered in the c/orkinys. <br />VII. Alluvial Va11eu FZoors - Rules 2.OG.8 and 9.2.9 <br />Deficiencies: <br />1. The applicant must provide a reconaissance level alluvial valley floor <br />study for Raton Cz'eek. This study should include a map of unconsolidated <br />alluvial deposits in the Raton Creek valley (based on air photos and sampling), <br />a discussion of the existence of any vegetation glory the alluvial valley indicat- <br />ing subirriyation potential, a discussior. of regional and historic practices ::•ith <br />