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Rio Grande Groundwater Withdrawal Rules
Document Type - Rulemaking
RESPONSE AREA SUMMARY C CONEJOS
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Colorado Division of Water Resources <br />912312015 <br />RESPONSE AREA SUMMARY PACKAGE <br />CONDOS RESPONSE AREA <br />Table of Contents <br />Figure 1 Conejos Response Area, Stream Reaches with Response Functions - This figure shows <br />the stream reaches for which Response Functions were calibrated. For the Conejos <br />Response Area there are seven stream reaches with Response Functions: <br />1. Conejos River above Seledonia/Garcia Ditches <br />2. Conejos River below Seledonia/Garcia Ditches <br />3. Rio Grande Del Norte to Excelsior Ditch <br />4. Rio Grande Excelsior Ditch to Chicago Ditch <br />5. Rio Grande Chicago Ditch to the State Line <br />6. Alamosa River <br />7. San Antonio River <br />Table 1a Estimated Historical and Current Year Net Stream Depletions from Groundwater <br />Withdrawals in the Conejos Response Area (acre-feet) - This table provides a summary <br />of the Conejos Response Area's groundwater withdrawal impacts to streams using <br />Response Functions calibrated to the RGDSS Groundwater Model for the time frame of <br />2001 through 2015. For illustrative purposes, groundwater withdrawal was <br />discontinued after 2015 and the Response Functions were applied to estimate post plan <br />depletions. Net Groundwater Consumptive Use is defined as the groundwater <br />consumed by the operations of one or more wells and represents the difference <br />between groundwater withdrawals less any return flow to the hydrogeologic system. <br />Table 1b Estimated Post Plan Net Stream Depletions from Groundwater Withdrawals in the <br />Conejos Response Area (acre-feet) <br />Figure 2 2001-2015 Estimated Net Stream Depletions and Post 2015 Projected Net Stream <br />Depletions from Groundwater Withdrawals in the Conejos Response Area - The stacked <br />graph shows the combination of Table 1a (historical and current year depletions) and <br />Table 1b (post -plan depletions). <br />Table 2 Monthly Net Stream Depletions for 2015 Plan Year in the Conejos Response Area (acre- <br />feet) - This table provides the monthly distribution of Net Stream Depletions for the <br />2015 Plan Year. <br />Conejos Response Area Page 1 <br />
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