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Bureau of Land Management's Decision Record and Environmental

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Jersey Valley Geothermal Development Project<br />

<strong>Environmental</strong> Assessment: NV063-EAO8-091<br />

water movement is transmitted mostly through unconsolidated sediments in the valley floor <strong>and</strong>,<br />

to a lesser extent, through localized areas <strong>of</strong> highly fractured consolidated rocks. Ground water<br />

from the Jersey Valley basin eventually flows to the southwest <strong>and</strong> contributes to the Dixie<br />

Valley Hydrographic Area ground water basin recharge.<br />

The Jersey Valley Hydrographic Area has committed ground water rights <strong>of</strong> 27.25 AFY <strong>and</strong> an<br />

estimated perennial yield <strong>of</strong> 250 AFY. The manner <strong>of</strong> use for all <strong>of</strong> the committed ground water<br />

rights is reported as industrial (NDCNR-DWR 2009a). The point <strong>of</strong> diversion for this ground<br />

water use is located within the privately owned l<strong>and</strong> block within the JV Unit Area in the<br />

NW¼SW¼ <strong>of</strong> Section 34, T27N, R4OE (see Figure 6). The application for this ground water<br />

right was filed on March 25, 2009 (NDCNR-DWR 2009b). As <strong>of</strong> January 2010, the<br />

NDCNR-DWR had no well drill log records available for this ground water diversion point<br />

(NDCNR-DWR 201 Oc).<br />

There is one recorded ground water well located within five miles <strong>of</strong> the Jersey Valley hot<br />

springs. This well, currently owned by the BLM, is located in the Jersey Valley Hydrographic<br />

Area, approximately 4 miles southwest <strong>of</strong> the Jersey Valley unit area, in the SE¼, SW¼ <strong>of</strong><br />

Section 11, T26N, R39E (see Figure 6). The well was constructed in 1957 to a total depth <strong>of</strong><br />

200 feet with a reported depth to ground water <strong>of</strong> 138 feet (NDCNR-DWR 2010c). Subsequent<br />

measurements <strong>of</strong> the depth to ground water in this well, taken during 1981 <strong>and</strong> 1982, show a<br />

consistent depth to ground water <strong>of</strong> 136 feet (USGS 2009b). The USGS has no available ground<br />

water quality data from this well (USGS 2009c).<br />

Between 1981 <strong>and</strong> 1982, fourteen geothermal exploration (temperature gradient) “wells” were<br />

drilled within five miles <strong>of</strong> the Jersey Valley unit area. Of these, nine are located within the<br />

Jersey Valley unit area (NDCNR-DWR 2010c). All <strong>of</strong> these geothermal exploration “wells”<br />

were drilled to relatively shallow depths (ranging from 340 feet to 500 feet). The NDWR does<br />

not list these wells as plugged <strong>and</strong> ab<strong>and</strong>oned, although the drilling logs on file indicate that they<br />

were sealed with cement upon completion. No depth-to-ground water measurements or water<br />

quality data are available for any <strong>of</strong> these geothermal exploration “wells” (NDNR-DWR 2OlOc).<br />

Surface water within the Jersey Valley unit area is limited to a few springs <strong>and</strong> associated ponds<br />

<strong>and</strong> a few west-flowing stream channels. Figure 6 shows streams flowing out <strong>of</strong> Jersey Canyon,<br />

Butcher Canyon <strong>and</strong> several unnamed canyons within the unit area. These streams are either<br />

ephemeral (flowing only during or immediately after rain events) or intermittent (flowing part <strong>of</strong><br />

the year, principally due to rain events <strong>and</strong> spring snowmelt, but dry the rest <strong>of</strong> the year). No<br />

stream flow or water quality data are available for these streams.<br />

Figure 6 also shows five springs within the Jersey Valley unit area. The eastcrnmost spring is a<br />

cold water spring located at the mouth <strong>of</strong> Jersey Canyon on private l<strong>and</strong> within the Jersey Valley<br />

unit area in the NW¼SW¼ <strong>of</strong> Section 34. The northernmost spring, located in Section 15, <strong>and</strong><br />

the westernmost spring, located in the center <strong>of</strong> Section 29, are both small hot springs/seeps with<br />

little flow.<br />

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