2024-02-01_HYDROLOGY - M2010071 - Laserfiche WebLink

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Goose Haven Reservoir#2 Expansion SWSP Page 5 of 7 February 1, 2024 Water Commissioner. The release of replacement water may be aggregated to maximize beneficial use, subject to approval by the Division Engineer or Water Commissioner. The Water Commissioner and/or the Division Engineer shall determine the rate and timing of an aggregated release. 9. As long as dewatering occurs continuously, the net accretions should be sufficient to replace the lagged depletions. At least three years prior to the planned cessation of dewatering, the operator must submit a dewatering analysis that shows how post pumping depletions will be replaced. As this analysis requires knowledge of the total volume dewatered, dewatering operations must be measured by totalizing flow meters that can accurately show the monthly volume of dewatered water that is pumped and returns to the stream. Additionally, the total amount pumped monthly for dewatering purposes and the lagged depletions from dewatering must be reported on the submitted monthly accounting. Should it be determined by the Water Commissioner or Division Engineer that dewatering water is being diverted for any purpose by the operator and accounting is not adequate to show that 100 percent of the dewatering water is returned back to the Boulder Creek, the Applicant will need to account for any lagged dewatering depletions at the site. Any renewal request must demonstrate that the dewatering is occurring continuously at a constant rate or must account for all lagged depletions and return flows from dewatering. 10. The Applicant shall provide daily accounting (including, but not limited to diversions, depletions, replacement sources, ice cover, and river calls) on a monthly basis. The accounting must be uploaded to the CDSS Online Reporting Tool within 30 days of the end of the month for which the accounting applies (https://dwr.state.co.us/Tools/reporting). Instructions for using the tool are available on the Division of Water Resources website on the"Services"—>"Data& Information" page under the heading of "Online Data Submittal". Accounting and reporting procedures are subject to approval and modification by the Division Engineer. Accounting forms need to identify the WDID number for each structure operating under this SWSP. NOTE: Monthly accounting, even during the winter non-irrigation season, is required. In addition, the Applicant shall verify that the City of Lafayette (WDID 0602503) includes in their monthly accounting, a report on the reusable water released to provide replacement for this SWSP. It is the Applicant's responsibility to ensure the City releases the leased water in the correct time, place, and amount. 11. The name, address, and phone number of a contact person who will be responsible for the operation and accounting of this SWSP must be provided on the accounting forms to the Division Engineer and Water Commissioner. 12. The Applicant should reference the Augmentation Plan Accounting or any other applicable protocols as referenced in the attached documents, for the operation of this SWSP. 13. Conveyance loss for delivery of augmentation water is subject to assessment and modification as determined by the Division Engineer or Water Commissioner. 14. In order to prevent injury to other water rights, the Division Engineer and Water Commissioner must be able to administer Applicants' replacement water past headgates on the river at times when those headgates would otherwise be legally entitled to divert all available flow in or "sweep" the South Platte or its tributaries. Applicant shall not receive credit for replacement of depletions to the South Platte below such diversion structures unless bypass and measurement structures are in place to allow the Division Engineer and Water Commissioner to confirm that Applicant's replacement water is delivered past the headgates. In the event that delivery past