AWWA ACE59958

El Paso relies on three sources of water supply to meet its potable water supply needs. These threesources are the Rio Grande for surface water, and Mesilla and Hueco Bolson for groundwater. The arsenicin the Rio Grande source averages about 4-6 ppb and is largely removed during surface water treatment.In the Mesilla Bolson, the majority of wells have elevated arsenic levels averaging about 17 ppb andtreatment will be centralized utilizing a different approach under a separate program. In the HuecoBolson, the largest aquifer, arsenic is intermittent and spotty. This paper is about the Hueco BolsonAquifer and four of its eight well fields (Northeast, Cielo Vista, Eastwood and Lower Valley) impactedby the Arsenic Rule. The Hueco Bolson is a critical source of drinking water and represents an averageproduction capacity of 42 mgd and peak sustainable capacity of 50 mgd. Pilot studies conducted byEPWU indicated that an adsorption media system for arsenic removal would be easy to operate, haslimited residuals handling requirements, minimizes chemical handling and assures process integrity. Includes tables, figures.

Product Details

Edition:

Vol. - No.

Published:

06/17/2004

Number of Pages:

19

File Size:

1 file , 990 KB