The District possesses decreed water rights to 531.84 acre-feet per year of groundwater from the Denver, Upper Arapahoe, Lower Arapahoe, and Laramie-Fox Hills aquifers. Of this amount, 59.7 acre-feet per year are allocated to post pumping reserve under currently decreed augmentation plans and 472.14 acre-feet per year are available to the District. The District obtained judicial approval of an augmentation plan which utilizes alluvial ground water as an additional source of in-house domestic service in the Box Elder Creek Ranch subdivision, with 26.7 acre-feet per year of Laramie-Fox Hills aquifer ground water reserved as a source of augmentation.
The District has two augmentation plan applications pending with the Water Court for Water Division 1. In Case No. 08CW43, the pending augmentation plan will utilize a portion of the above described Upper Arapahoe aquifer ground water for irrigation and in-house service for the Homestead Heights subdivision, with 9.2 acre-feet per year of Lower Arapahoe aquifer ground water to be allocated for post pumping reserve. In Case No. 08CW66, the pending augmentation plan will utilize alluvial ground water as an additional source of irrigation and in-house domestic water service for the Greatrock North, Homestead Heights, Hayesmount and Rocking Horse Farms subdivisions. The augmentation plan will rely upon return flows and direct delivery of a portion of the water rights referenced above, if necessary, for augmentation purposes. The District anticipates that these water rights and augmentation plans will be sufficient to provide irrigation and in-house domestic water service to the Greatrock North, Homestead Heights, Hayesmount and Rocking Horse Farms subdivisions and all in-house domestic water service to the Box Elder Creek Ranch subdivision when build-out of these subdivisions is complete. Box Elder Creek Ranch Water Company is responsible for providing irrigation water service to the Box Elder Creek Ranch subdivision.
The District’s water system includes 8 central water supply wells with raw water being treated with chlorination at either the wellheads or at the 0.194 million gallons per day (“mgd”) reverse osmosis treatment plant built in 2002. The treated water is stored in four storage tanks: a 250,000 gallon below ground concrete tank (Greatrock North); two 500,000 gallon above ground steel tanks (Box Elder); and a 300,000 gallon above ground steel tank (Rocking Horse Farms). The District’s water distribution network consists of a loop type system with an in line booster pump to pressurize the system. The water distribution system consists entirely of 4 inch, 6 inch and 10 inch PVC lines.