Problem: Located in a desert area, El Paso, Texas faces the
continuing problem of finding an adequate water supply. The
current primary aquifer in the city is becoming depeleted.
Although water from the Rio Grande could be treated and used
fairly easily, the appropriation of virtually all available water
rights for agricultural use leaves this an unworkable alternative.
Proposed solution: The court decisions involving the Rio Grande
water gave the city the right to its sewer effluent; farmers,
however, were unwilling to exchange river water for this effluent.
As a result, the city decided to build a treatment plant to
convert the sewer effluent into drinkable water. Using additional
funding from the EPA and the state of Texas, the city built a
municipally owned water treatment plant for this task. This plant
is capable of meeting about ten percent of total water needs. In
addition, the city has programs to decrease water use. Graduated
rate structures, plastic-lined storage reservoirs, regular water
line maintenance, and promotion of native vegetation in
landscaping all help encourage less water use.
Evaluation: The treatment plant is successful in providing a new
source of clean, usable water. In addition, the conservation
efforts have reduced the average per capita water use. Efforts
continue to find additional sources of water, but the treatment
plant provides a significant and lasting way to increase the
availability of necessary water.
Contact: City of El Paso
Citation: "Putting Wastewater to Work." EPA Journal, v. 11
(April 1985), pp. 5-6.
Keywords: environment water treatment
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