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Water Adequacy Determinations in the Parker Basin

Water adequacy determination information including the subdivision name, location, number of lots, adequacy determination, reason for an inadequacy determination, date of determination and subdivision water provider are shown in Table 7.6-10A.  Designated water provider information is shown in Table 7.6-10B with date of application, date the designation was issued and projected or annual estimated demand.  Figure 7.6-11 shows the general locations of subdivisions (to the section level) and designated providers keyed to the Table. A description of the Water Adequacy Program is found in Volume 1, Appendix C.  Adequacy determination data sources and methods are found in Volume 1, Appendix A.

  • All subdivisions receiving an adequacy determination are in La Paz County.  Twenty-eight water adequacy determinations have been made in this basin through December 2008.  Of the 25 subdivisions for which lot information is available 1,145 lots in 15 subdivisions, or 73% or lots, were determined to be adequate.
  • The most common reason for a determination of inadequacy was because the applicant chose not to submit necessary information and/or available hydrologic data were insufficient to make a determination.
  • There are two designated providers, Town of Parker and Town of Quartzite.  The total projected or annual estimated demand for the Town of Quartzite is 602 acre-feet.  The Town of Parker does not have a projected or annual estimated demand.

Click here for Table 7.6-10

Table 7.6-10 Adequacy Determinations in the Parker Basin

Click here for Figure 7.6-11

Figure 7.6-11 Parker Basin Adequacy Determinations


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References and Supplemental Reading for the Parker Basin

Colorado River
Lower Colorado River Planning Area
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Imperial NWR
Parker Dam