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Water Resources Administered <br />Water resources administered by the District 20 Commissioners include all those where water <br />rights have been decreed by the State of Colorado. In District 20, these water resources include <br />those located on: <br />• Rio Grande: upper headwaters to below Alamosa <br />• Embargo Creek <br />• Rock Creek <br />• Raton Creek <br />• San Francisco Creek <br />• Pinos Creek <br />• Spring Creek <br />• Several other minor tributaries to the Rio Grande totaling 100 priorities <br />Within Colorado, the Rio Grande extends roughly 25 miles from the southern-most point of <br />District 20 to the New Mexico state line. With the exception of administration of the Rio Grande <br />Compact, the New Ditch and Stewart Ditch (located on the Alamosa National Wildlife Refuge <br />and within District 20) are the lowest water rights actively administered on the Rio Grande. <br />Stream Flow Measurement Points <br />There are several stream flow measurement points along the Rio Grande and tributaries within <br />District 20. The most significant measurement point is the USGS gauging station located on the <br />Rio Grande at Del Norte (ID No. 8220000). This gage is one of the "Index Gages" used by <br />Water Division 3 in their administration of the Rio Grande Compact. The Del Norte Gage is <br />located upstream of all major diverters on the Rio Grande. <br />Other Rio Grande mainstem gages utilized by District Commissioners include those located at <br />Thirtymile Bridge (ID No. 8213500), Wagon Wheel Gap (ID No. 8217500), South Fork (ID No. <br />8219500), Monte Vista (ID No. 8221500), County Line (ID No. RIOLINCO), Alamosa (ID No. <br />8223000) and Lobatos (ID No. 8252500). The Lobatos Gage is the point used to measure water <br />deliveries to the New Mexico State line ("Compact deliveries"). There are a total of 16 other <br />non-Index Gages in the District. In addition, stage (contents) are recorded on a daily basis for <br />major storage reservoirs. <br />Direct Flow Water Rights and Ditch Capacity Issues <br />There are approximately 2,092 decreed surface water diversion points within District 20. <br />Included are many small diversions at points located primarily on tributary streams, and several <br />large canal systems on the mainstem. A straight-line diagram for the District is provided as <br />Attachment 1. <br />Surface water diversions within District 20 are dominated by eight major canal systems. These <br />canal systems, known as the "Big Eight," include: <br />C:Acdss\D20_Mem.doc District 20 Interview July 2, 1999 -Page 2 of 9 <br />