2015-01-22_HYDROLOGY - M1980110 - Laserfiche WebLink

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Austin Malotte, P.E. January 22, 2015 Page 3 years after the SWSP period. The monthly steady state depletions resulting from the AWAS analysis are shown on the attached Table 1. Replacements The source of replacement water for this SWSP will be a lease of up to 55.25 acre - feet of fully consumable water leased from the Central Colorado Water Conservancy District ( "Central "). A copy of the current lease was provided to this office with the SWSP request and is attached to this letter. The current lease is valid from October 2014 until May 2015. Water leased from Central would be released from Robert W. Hite Treatment Facility (a /k /a Metro Wastewater Treatment Plant MWWTP) (WDID 0200700) in the SW1 /4 of the SW1 /4 of Section 1, Township 3 South, Range 68 West of the 6th P.M. A transit loss of 0.5 percent per mile is assessed to deliveries made to the South Platte River. The MWWTP is located 11.5 miles upstream of the point of depletions of Sandy Acres Pit, thus the total transit loss will be 5.75 percent. Replacement supplies from Central include transit loss, so all Sandy Acres Pit depletions are fully replaced at the point of depletions from October 2014 through April 2015 as shown in Column 6 of Table 2. The leased water consists of fully consumable water derived from prior municipal use by the City of Aurora ( "Aurora "). Aurora is obligated to provide a certain amount of water to Central pursuant to a 2006 agreement between those entities. The water provided by Aurora may be supplies from any water right approved for augmentation purposes. Column 3 of Table 2 identifies future replacement amounts needed to replace all remaining Sandy Acres Pit depletions affecting the South Platter River through September 30, 2015. Replacement of the remaining amounts (May through September 2015) is assumed to be made at the MWWTP, although actual replacement may be made elsewhere. Specific information regarding replacement of Sandy Acres Pit depletions for the period of May 1, 2015 through September 30, 2015 must be provided by April 30, 2015. This plan will be extended until September 30, 2015 if the replacement water source will still be provided from the fully consumable water derived from MWWTP and the Applicant provides a copy of the new lease with Central or other entity by April 30, 2015. If the Applicant will use a different source of replacement water for the period of May 1, 2015 through September 30, 2015 then this SWSP will expire on April 30, 2015 and the Applicant must submit a renewal request of this SWSP by March 15, 2015. The Applicant shall ensure that the replacement water makes it to the calling water right. The division engineer, or his designated representative, will administer all such water transported in the South Platte River or its tributaries, including water for replacement of depletions, past intervening headgates to ensure that such water is not intercepted or otherwise diminished in quantity by diversion, use or other interference by intervening water rights and to assure that such water remains available and suitable for Applicant's uses under this plan, except when any intervening headgate is diverting the entire flow of ( "sweeping ") the river. In the event that delivery past headgates which sweep the river requires the installation of a bypass structure or the use of an existing bypass structure by agreement with a third - party, Applicant is responsible for either installing a new bypass structure with a continuous recording measuring device(s) as approved by the water commissioner or securing an agreement with a third -party to use an existing bypass structure and providing such information and agreement to the division engineer.