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C. Copies of the SNOTEL suspension criteria maps hosted on the website of the Natural <br />Resources Conservation Service (NRCS) Snow Survey Program website during times that <br />operations are suspended. <br />D. Copies of emails and reports generated by the Colorado Avalanche Information Center <br />(CAIC) and other sources for every day that operations are suspended. <br />17. The Permit Holder may request in writing an additional period of operation prior to November <br />lst or past April 30th of each season, provided that State suspension criteria have not been <br />exceeded and the Project Sponsors and Parties have agreed to fund such activities. <br />18. Annual reports are due to the CWCB and all Project Sponsors by June 30th of each year for the <br />preceding winter's operations. The annual report is subject to change and the CWCB and the <br />Project Sponsors may request additional data and analysis. <br />19. The Permit Holder shall suspend seeding operations if: <br />A. Snowpack snow water equivalent (SWE) thresholds are exceeded. Snowpack <br />suspension criteria are required by the State. These values are based on research <br />program results on impacts to the environment. Keeping snowpack SWE values <br />within these numbers keeps snowpack within the natural variability of the local <br />climate. These criteria are similar in all western states. The Permit Holder shall <br />suspend seeding operations if at any time the average of the snowpack SWE, at <br />SNOTEL sites in and near the target area, exceeds the thirty year average defined by <br />the following points: <br />1. 175% of average on December 1" <br />2. 175% of average on January 1St <br />3. 160% of average on February 1St <br />4. 150% of average on March 1St <br />5. 140% of average on April 1St <br />The U.S. Department of Agriculture — Natural Resources Conservation Service - Snow <br />Survey Program (NRCS) operates a network of 111 SNOTEL sites in Colorado. The <br />NRCS maps the State's snowpack suspension criteria for all SNOTEL sites on a daily <br />File Transfer protocol (FTP) site for Colorado. The Permit Holder must check this <br />NRCS FTP site regularly and coordinate with the CWCB to suspend operations when <br />warranted. <br />The NRCS is moving the long -term (30 -year) average of SNOTEL sites from the 1971- <br />2000 data to the 1981 -2010 data by the end of 2012. The NRCS will update the <br />snowpack SWE values and mapping that are used for State's seeding suspension <br />criteria. <br />As of 2010, the NRCS is using the 1971 -2000 snowpack SWE data. The values below <br />are the actual SWE values (black) and snowpack SWE thresholds (red) that will be <br />monitored and mapped for suspension criteria. The data will also be shown in a spatial <br />M <br />