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Last modified
9/26/2011 8:37:06 AM
Creation date
7/9/2008 12:20:14 PM
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Decision Support Systems
Title
SPDSS Task 5 - Key Municipal User, Denver Water Board
Description
Denver Water has been identified as a key municipal user for the South Platte Decision Support System (SPDSS) consumptive use and surface water modeling efforts. The purpose of this Task 5 memorandum is to document physical, legal, and operational aspects of those key structures identified.
Decision Support - Doc Type
Task Memorandum
Date
2/19/2007
DSS Category
Surface Water
DSS
South Platte
Basin
South Platte
Contract/PO #
C153954
Grant Type
Non-Reimbursable
Bill Number
SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
Prepared By
Leonard Rice Engineering
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the Denver metropolitan area and surrounding counties. Previous waste water treatment facilities <br />were located upstream on the South Platte River above the Burlington Ditch headgate. Pumps <br />were installed to move water from the Metro WWTP to the Burlington Ditch (the Metro Pumps) <br />in response to a law suit filed because of the relocation. The Metro Pumps typical operate in the <br />winter when the Burlington Ditch is diverting to store in Barr Lake. The water pumped from the <br />plant is either water that is fully consumable by Denver Water under its decrees or water that <br />would otherwise be available to FRICO under the exercise of its decrees. The amount of <br />discharge into the Burlington Ditch is measured and these discharges are included in the <br />Burlington Ditch diversion records, which are measured at the ditch crossing at Sand Creek, <br />downstream of the Metro Pumps. <br />The Metro WWTP has a maximum capacity of 185 mgd and currently treats about 160 mgd, <br />which includes waste from about 78.5 percent of Denver Water's municipal and industrial water <br />deliveries. <br />The Littleton-Englewood WWTP is located on the South Platte River approximately 1/4 mile <br />below the South Platte River at Englewood stream gage (USGS ID 06711565, DWR ID <br />PLAENGCO). The Littleton-Englewood WWTP has a design operating capacity of 36.3 mgd <br />and discharges an average of about 27 mgd to 30 mgd to the South Platte River. About 17.1 <br />percent of Denver Water's municipal and industrial water deliveries are currently, treated at the <br />Littleton-Englewood WWTP. <br />The first stage (30 mgd capacity) of Denver Water's reuse plant came online in 2004. The plant <br />is located adjacent to the Metro WWTP and supplies about 8,000 ac-ft/yr of non-potable supply <br />as part of Denver Water's fixed contract deliveries to parks, golf courses, cemeteries, etc. Plans <br />are to ultimately enlarge the plant to produce 17,000 ac-ft/yr, at a rate of up to 45 mgd, of reuse <br />supplies. <br />WATER RIGHTS <br />Denver Water owns numerous water rights in the South Platte River basin for direct flow, <br />storage, ground water, and exchange uses. The following discussion and tabulation of water <br />rights is not meant to be a complete catalogue of Denver Water's rights but is intended to focus <br />on the major water rights used with the key structures identified in the Denver Water system in <br />the South Platte River basin. <br />Direct Flow Water Rights <br />Table 9 lists the direct flow water rights owned by Denver Water and used at the key Denver <br />Water structures in the South Platte River basin. A number of rights are listed under the reservoir <br />systems where they are diverted and stored prior to conveyance at the various treatment facilities <br />in the Denver Water system. Many of these water rights and associated headgates and ditches <br />were inundated by the reservoirs listed. <br />Denver Water Board Operating Memorandum 29 of 40 <br />
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