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<br />OJ1733 <br /> <br />Salinity Control Program, Additional salinity control measures, like the lining of the canal <br />system for Hammond Irrigation System has reduced salt input to the river. Other irrigation <br />districts in the watershed may be potential candidates for additional salinity control projects. <br /> <br />Soil erosion is another potential source of salts that could be transported to the river. Much of <br />the middle and lower San Juan River watershed has little natural vegetation coverage, which <br />leads to rapid soil erosion and transportation to the river during precipitation events. The Bureau <br />of Land Management is conducting studies in the Canyon Largo watershed to reduce soil erosion <br />and arroyo runoff. When the New Mexico Environment Department completes their TMDL <br />studies for bottom sediments in the San Juan River segments in 2004, additional salinity <br />improvements are likely through control of bank erosion, agricultural runoff, and arroyo runoff. <br /> <br />Page 15 of 15 <br />