Run-off from the site enters an irrigation ditch south of the site. From this point, the drainage water travels through a series of canals until it enters the Rio Grande River 7 miles downstream from the site. No drinking water intakes are located along the canals and river. However, they are used as recreational areas and fisheries stocked by the State. Portions of the downstream segment along the Rio Grande are also considered wetlands according to Federal and State inventories.
Further documentation is required to establish that surface water is indeed contaminated.
Sampling activities began in December 1993. The description may change as additional information is gathered on the sources and extent of contamination.