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\-4 c..u (n CJr Pariette Draw-BlM Installation of water quality monitoring stations and construction of improvements are in progress on Pariette Draw in Vernal District, Price-San Rafael Rivers, Utah-Reclamation/USDA SCS and Reclamation continued preparation of a joint plan and EIS for the Price-San Rafael Rivers Unit, Under the joint plan, Reclamation will install salinity control features in the irrigation distribution system and USDA will assist individuals and groups apply onfarm salinity reduction practices, The plan will eliminate winter water from the canal system by installing a rural domestic water distribution system, Ajoint draft planlElS is scheduled to be filed with EPA in May 1991. The present schedule anticipates that a final EIS will be filed by December 1991. Under the preferred plan. salt loading to the Colorado River system would be reduced by about 162,900 tons per year, with an annual cost of salt removal of$55 per ton (January 1989 prices). Sagers Wash-BlM A Comprehensive Watershed Management Plan and Economic Analysis will be completed for Sagers Wash in the Spring of 1991. Installation of water quality monitoring stations is underway in the Sagers Wash area, The Sagers Wash area was the first priority watershed that was modeled (Phase II effort) by the interagency team for a nonpoint source management program, and the draft report is receiving review. San Juan River, New Mexico Reclamation The Hammond Project, Navajo Indian Irrigation Project (NIIP), and the Hogback Irrigation Project (also a Navajo Indian project) are the principal irrigation-induced sources of salt 14 loading in the Basin, Preliminary canal seepage and drainage investigations were completed on the Hammond Project and justified development of a plan. Reclamation proposes to reduce seepage losses to the main canal system by lining the canal with either concrete or membrane linings. These improvements would eliminate seepage in to the saline formations beneath the canals thus reducing salinity. Reclamation has focused its planning efforts in the San Juan River Unit by preparing a Draft Planning ReportJEnvironmental Impact Statement for the Hammond Area. This report is scheduled for release in fiscal year 1991. Preliminary review of data available in the Hogback Project Area show heavy salt loading but the mechanisms have not yet been explored. Ground water accruing to the San Juan alluvium in this vicinity have salinity concentrations of over 15,000 mgIL, Other salt sources may include abandoned oil or gas wells and wastewater from a petroleum refinery. Reclamation and the USGS are cooperatively investigating this area to identify sources of salt and potential salinity control opportunities. Recent water quality data has shown the NIIP irrigated area groundwater return flows to be surfacing in Gallegos and Ojo Amarillo Washes, tributaries to the San Juan River. These return flows have salinities of about 3,000 mgIL and are typical of irrigation return flows. These washes are both wide and deep and the drainage water could be collected in them if disposal or industrial use alternatives appear feasible. These sources of salt will be evaluated for treatment in future studies. USDA SCB continued with investigations during the year to determine the feasibility of an onfarm program in the San Juan River Basin. Priority has been given to the Hammond Irrigation District area because of Reclamation's planned improvements to the canal system, The USDA onfarm planning activities will continue in 1991.