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it ~ Hydrology Report Page 2. - Phase I 4883 Phase II 4883 ' Phase iII 4879 Phase IV 4879 °~,•:~. =' Phase V 4873 _y .. p, ,,.y ,.~! - Phase VI 4871 .. ry ~ ": .:.~°.. These maximum levels are controlled by 30" CMP's installed • from lake to lake. The inflow of historic irrigation waters will not need a point of diversion change, as they •,.<~ " enter and exit the property at their present location. ~ ~`''r''%~~i~~: _. Valves will be installed on the outlets of the Smith S ,;:y.,.. r, ..~. `~: ~~~~• Emmons ditch from Western Paving's property so as to ,._:•. ;, n,: ~'~~~~,. provide proper distribution of waters to the downstream -, x users. - .~..,~~, ~. 4~t: • Excess waters will return to Boulder Creek at the far ~., s;ti.~~e~+~~, ~~~'~ north western corner of the property. The 30" CMP will ~v'. ~.. `` "s~ `:' ~ ~ '•°'tarr in excess of 26 CFS far mote than the call b the s ''"s-~'E° ,-Smith b Emmons downstream users, y" ~" ~c.+~'.; a. COUN'CY ROADS - ~'"~ .; ~~. -;~:,.: Cross sections show a shale dike to be constructed, >". ' below high water level along the lake banks. 'Pests "'. ~. ;; conducted have indicated that shale dikes placed .'%: properly and as shown, are effective in minimizing ,_~Y seepage from these lakes. yr With the installation of the overflow pipes as discussed ,~.,". earlier, and with the construction of the shale dike, the :4" water table under the county roads, will not be changed •'~ from current ground water conditions. - ,.. This area has historically been flood irrigated, producing ground water levels 2' below the surface. During flood conditions, these roads have been partially inundated and this will not change during or after this project. GROUND WATER Ground water observation wells will be installed, as • shown on mining glans, prior to the mining operation begir:ing. An historic background of the water elevation will be established. ,~~:. _. ,:. - . ,