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Fax: (303) 8664474
<br />www. c wcb. state. co.us
<br />Pursuant to the PRRIP, Attachment 5, Section 9, and Paragraph D of Colorado's Plan for Future Depletions (CPFD)
<br />dated October 24, 2006, Colorado must report the following information for the South Platte River basin for Initial
<br />Reporting Period and subsequent Reporting Periods:
<br />1) an estimate of the actual population in each region;
<br />2) any information relevant to the continued use or modification of assumptions set forth for gross per capita water
<br />requirements, the accretive depletive effect of each source of supply, and the cumulative effect at the state line;
<br />3) the operation and effects of projects to mitigate new depletive effects;
<br />4) an estimate of the projected Population increase for the next succeeding 5 year reporting period (to January 1,
<br />2014);
<br />5) estimates of the net accretive /depletive effects and Cumulative Effect for the next reporting period; and, 6) net
<br />changes in irrigated agricultural acreage using readily available data.
<br />With regard to monitoring and reporting in the North Platte Basin, Colorado is required to report the following 1)
<br />irrigated acreage; 2) irrigation storage; 3) trans -basin diversions; and, 4) population. Colorado will also report the
<br />projected increases in population. In addition, Colorado will report any significant non -nexus piscatorial, wildlife,
<br />or other environmental uses (which are not incidental to agricultural uses), and any new industrial uses, that occur
<br />after 1997_
<br />For the North Platte Basin, with regard to irrigated acreage, irrigation storage and trans -basin diversion, please see
<br />the attached memorandum from Erin Light, dated January 13, 2009. The total area land irrigated in Jackson County
<br />in 2008 was 117, 148 acres, under the 134,468 acres allowed under the 1945 Supreme Court decree. "The total
<br />amount of water stored for irrigation in Jackson County was 10,128 acre feet, under the 17,000 acre -feet allowed
<br />under the 1945 Supreme Court decree. The amount of water exported from the North Platte River Basin in Jackson
<br />County was 6,905 acre -feet, but the 10 -year running average is still below the 60,000 acre -feet allowed under the
<br />decree. There were no significant, non - nexus, piscatorial, wildlife, or other environmental uses (which were not
<br />incidental to agriculture uses) that have occurred in Jackson County since 1997. Finally, there have been no
<br />industrial uses that have occurred in Jackson County since 1997.
<br />With regard to population in the North Platte basin, please see the attached March 27, 2009 letter report from the
<br />Colorado State Demographer. As described in that letter report, the population as of January 1, 2009 is estimated to
<br />be 1,442, down from the 1997 population estimate of 1,596. The estimated population for the end of the next
<br />reporting period, on January 1, 2014, is 1,497. These are significantly under the 2,022 population baseline under
<br />Colorado's depletions plan.
<br />Water Supply Protection • Watershed Protection & Flood Mitigation • Stream & Lake Protection • Water Supply Planning & Finance
<br />Water Conservation & Drought Planning • Intrastate Water Management & Development
<br />Bill Ritter. Jr.
<br />Governor
<br />MEMORANDUM
<br />Harris D. Sherman
<br />DNR Executive Director
<br />To:
<br />Governance Committee -GC and Water Advisory Committee -WAC,
<br />Jennifer L. Gimbel
<br />Platte River Recovery Implementation Program (PRRIP)
<br />CWCB Director
<br />From:
<br />Ted Kowalski, State of Colorado, GC Alt. Member
<br />Dan McAuliffe
<br />Alan Berryman, Colorado Water Users, GC Member
<br />CWCB Deputy Director
<br />Jon Altenhofen, Colorado Water Users, WAC Member
<br />Date:
<br />April 30, 2009
<br />Re:
<br />Cumulative Effect Report for Colorado's Plan for Future Depletions
<br />Pursuant to the PRRIP, Attachment 5, Section 9, and Paragraph D of Colorado's Plan for Future Depletions (CPFD)
<br />dated October 24, 2006, Colorado must report the following information for the South Platte River basin for Initial
<br />Reporting Period and subsequent Reporting Periods:
<br />1) an estimate of the actual population in each region;
<br />2) any information relevant to the continued use or modification of assumptions set forth for gross per capita water
<br />requirements, the accretive depletive effect of each source of supply, and the cumulative effect at the state line;
<br />3) the operation and effects of projects to mitigate new depletive effects;
<br />4) an estimate of the projected Population increase for the next succeeding 5 year reporting period (to January 1,
<br />2014);
<br />5) estimates of the net accretive /depletive effects and Cumulative Effect for the next reporting period; and, 6) net
<br />changes in irrigated agricultural acreage using readily available data.
<br />With regard to monitoring and reporting in the North Platte Basin, Colorado is required to report the following 1)
<br />irrigated acreage; 2) irrigation storage; 3) trans -basin diversions; and, 4) population. Colorado will also report the
<br />projected increases in population. In addition, Colorado will report any significant non -nexus piscatorial, wildlife,
<br />or other environmental uses (which are not incidental to agricultural uses), and any new industrial uses, that occur
<br />after 1997_
<br />For the North Platte Basin, with regard to irrigated acreage, irrigation storage and trans -basin diversion, please see
<br />the attached memorandum from Erin Light, dated January 13, 2009. The total area land irrigated in Jackson County
<br />in 2008 was 117, 148 acres, under the 134,468 acres allowed under the 1945 Supreme Court decree. "The total
<br />amount of water stored for irrigation in Jackson County was 10,128 acre feet, under the 17,000 acre -feet allowed
<br />under the 1945 Supreme Court decree. The amount of water exported from the North Platte River Basin in Jackson
<br />County was 6,905 acre -feet, but the 10 -year running average is still below the 60,000 acre -feet allowed under the
<br />decree. There were no significant, non - nexus, piscatorial, wildlife, or other environmental uses (which were not
<br />incidental to agriculture uses) that have occurred in Jackson County since 1997. Finally, there have been no
<br />industrial uses that have occurred in Jackson County since 1997.
<br />With regard to population in the North Platte basin, please see the attached March 27, 2009 letter report from the
<br />Colorado State Demographer. As described in that letter report, the population as of January 1, 2009 is estimated to
<br />be 1,442, down from the 1997 population estimate of 1,596. The estimated population for the end of the next
<br />reporting period, on January 1, 2014, is 1,497. These are significantly under the 2,022 population baseline under
<br />Colorado's depletions plan.
<br />Water Supply Protection • Watershed Protection & Flood Mitigation • Stream & Lake Protection • Water Supply Planning & Finance
<br />Water Conservation & Drought Planning • Intrastate Water Management & Development
<br />
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