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r~ <br />u <br />waters of Newlin Creek above the point where it crosses the Wet Mountain <br />Fault. Water from Newlin Creek was and Is presently conveyed by <br />pipeline (12" tile) to the municipal reservoirs near the city (see <br />Figure 2.04.7 (lc)). <br />The upper and main Intake consists of a rrnrtared-stone and <br />earth-fill diversion dam approximately 12 feet high which drains through <br />a trash rack Into a drop boz and pipeline. Storage space exists for <br />capturing snovmelt or storm runoff. A second Intake Is located <br />approximately 3/4 mile downstream "at which point the underfloor water of <br />said creek, or developed water, Is diverted from an underground Camel <br />by means of a 12-inch pipe which corrects with the Florence Pipeline at <br />a point near the mouth of said Lumel.", This dual system is effective <br />in diverting stone naioff from upper Newl to Creek and In reducing the <br />base flay (Including subsurface flaw at the bedrock contact) to zero. <br />• This system has been in nearly continuous service since its <br />construction, and helps explain Che absence of surface water in the <br />lower Newlin Creek drainage as well as the slow ground-water recharge <br />rate In the synclinal basin to the north and west. <br />Springs and Surface Streams <br />No springs have been Identified In Che Penn(t Area. Base flow in <br />all streams crossing the Permit Area Is zero. No established gauging <br />stations exist on any of the streams draining the Pertmlt Area, so <br />baseline data Is limited. Newlin Creek, although mapped as peremlal by <br />the U.S. Geological Survey, Is completely regulated and diverted by the <br />City of Florence through ICs municipal water collection system. <br />Seasonal varlatlons in streamflow carrot be adequately described using <br />the limited data available, but an approximation can be achieved by <br />examining the Newlin Creek diversion records given In Table 2.04.5 (1). <br />Average flays for streams In the Permit Area are meaningless due to the <br />ephemeral character of all such drainages. <br />• <br />Extensive hydrologic investigations and modeling were conducted In <br />Che Magpie and Newlin Creek drainages by Simons, LI and Associates for <br />18 <br />