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Mr. Tom Schreiner, Division of Minerals and Geology April 15, 2005 Page 3 ~~ CIVIL RES'~JU RCES, LLC determines that this area is jurisdictional, then the project Owner will obtain a 404 permit prior to disturbing the wetlands. Comment 6: In order to better understand the regional groundwater system in the area of the ... Response 6: The scale of the Water Feature Map has been increased as requested and is now more legible with regard to well information. The table below lists the well nearest each major project phase: Nearest Domestic Well to Permit Boundary Active Mining Area Nearest Well Well Tvpe Approx. Distance North Silt Pond Landrus D 90 feet Pond 1 Neeley D 110 feet Pond 2 Balderas D 210 feet South Silt Pond Spain D 90 feet Notes: i) Well Type: D = Domestic; I = Imgafion Nearest Irrigation Well to. Permit Boundary Active Minino Area Nearest Well Well Tvpe Approx. Distance North Silt Pond Sasaki I 145 feet Pond 1 Sakata I 110 feet Pond 2 Villano I 740 feet South Silt Pond Brancucci I 540 feet Notes:l) Well Type: D = Domestic; I = Imgation Comment 7: The applicant has already begun a Groundwater Monitoring Program at fhe proposed... - Response 7: The applicant will comply with the additional monitoring requirements stated in.Comment 7 of the 2nd Hydrology Review. Comment 8: The "Monitoring lNell & Boring Location Map' will need to be revised to include ... Response S: We will complete another monitoring well in the requested area prior to progressing the mining into Pond 2. Impacts that result from other people's activities including operating irrigation wells or the cumulative affect of many domestic wells but should be reflected in the monitoring records that we have been collecting. Comment 9.• The revised table of existing water monitoring data provided by the applicant ... Response 9: Agreed. Comment 10: The applicant has specified on-going groundwater mitigation of utilizing ... Response 10: The four proposed recharge locations will be of new construction and designed for a recharge rate of 500 gpm per site. The program is setup to prevent or reduce potential affects on neighboring wells in order to avoid impacts all together. It is our intent to have recharge mitigation measures in-place when dewatering begins on each adjacent site. However, if there is a question on a specific well, a simple timirig calculation could be to scale the distance from the recharge site to any well of interest and divide that by 165 feet per day, assuming that mitigation began in response to an adverse affect.