Table 1 Sample site descriptions
From: Microbial contamination and chemical toxicity of the Rio Grande
Site 1. Rio Grande at Sunland Park bridge near Texas/ New Mexico state line | A horse race track is located upstream and El Paso Electric is downstream [influenced by urban and agricultural runoff] |
Site 2. Rio Grande at Courchesne Bridge in El Paso | This site is influenced by flows coming from Elephant Butte Dam. The use of water for irrigation upstream contributes large volumes of irrigation return flow and agricultural runoff. It also receives urban runoff and wastewater discharges from Anthony, Canutillo, and El Paso |
Site 3. Rio Grande 2.4 Km upstream of Haskell street [WWTP] | Vehicle traffic is heavy and the area is also affected by urban runoff |
Site 4. El Paso Haskell Street WWTP outfall | Wastewater is discharged to the concrete lined/ channel part of the river |
Site 5. Rio Grande 1.3 Km downstream from Haskell WWTP | Vehicle traffic is heavy and the area is affected by urban runoff |
Site 6. Rio Grande at Riverside Diversion Dam | Influenced by urban runoff, wastewater discharges from the Haskell Street WWTP and runoff from industrial facilities on both sides of the border |
Site 7. Rio Grande at Alamo Grade Control structure 9.7 Km upstream of Fort Hancock Port of Entry | Receives large amounts of wastewater from domestic and industrial sources |