Laserfiche WebLink
<br /> Table 7: Assessed river reaches not fully supporting designated uses, San Juan basin, New Mexico <br /> Uses Not Fully Probable Sources of T atal Size C..:. <br /> Water Body Supported Taxies at T oxics at Nonsupport Affected ~::J <br /> (Basin, segmentl (see Table 4a) Probable Cause of Nonsupport Acute levels" Chronic levels" lsee Table 4b) (Milesl N <br /> San Juan River from Canon HQCWF Metals, turbidity. siltation. Hg Agriculture (15001 11.1 ut <br /> Largo to Navajo Dam reduction of riparian vegetation, Resource extraction (4 <br /> (San Juan River. 2-4051 streambank destabilization (55001 CJ) <br /> San Juan River from Chaco MGWF. Metals. pesticides. siltation. AJ Agriculture (1200. 1500) 31.2 <br /> River to Animas River wwF salinity, reduction of riparian Resource extraction <br /> (San Juan River. 2-401) vegetation, streambank (5500, 5900) <br /> destabilization <br /> San Juan River from Animas MCWF. Siltation. satinity, pathogens, Agriculture (1200. 1500) 26.0 <br /> River to Canon largo wwF. reduction of riparian vegetation, Resource extraction <br /> (San Juan River. 2-4011 IRR streambank destabilization 155001 <br /> San Juan River from New MCWF. Metals, pesticides. pathogens. Ag, Hg, Cd. Al Agriculture 11200. 1500) 33.4 <br /> Mexico-Colorado border to WWF, salinity, siltation, un-ionized Resource extraction <br /> Chaco River IRR ammonia, reduction of riparian 155001 <br /> (San Juan River, 2.4011 vegetation, streambank <br /> destabilization <br /> Chaco River from mouth on the MCWF--, Metals, pH, siltation, dissolved Pb, Se, Hg Agriculture (1500) 18.9 <br /> San Juan River to Chinle Wash WWP~, oxygen Resource extraction <br />w ISan Juan River, 2-4011 L&WW 15100.5500.5800) <br />- <br /> Animas River from mouth on MCWF. Metals, total phosphorus, Ag, Hg, Al Resource extraction 16.5 <br /> San Juan River to Estes wwRF siltation 15500. 58001 <br /> Arroyo <br /> (San Juan River, 2-4031 <br /> Animas River from Estes CWF Temperature, siltation, reduction Agriculture 11200, 1500) 19.9 <br /> Arroyo to New Mexico- of riparian vegetation. Resource extraction <br /> Colorado border streambank destabilization 155001 <br /> (San Juan River, 2-4041 <br /> La Plata River from mouth on LwwF Metals, nutrients. siltation. Hg Agriculture 115001 24.7 <br /> the San Juan River to New pathogens Resource extraction <br /> Mexico-Colorado border 15100,5500, 5800) <br /> (San Juan River, 2-402) <br /> <br />~ Conclusions concerning attainment of fishery uses are largely based on water quality analysis; where available, biological data are used to verify these results. <br />~ ~ All toxins for which the EPA has prepared a 304{a} guidance document were reviewed as required by the EPA. <br /> <br />Taken from New Mexico Water Quality Control Commission 1992 <br /> <br />~., <br /> <br />