Background

El Paso Water Utilities (EPWU) is one of the most efficient utilities in the Southwest, providing reliable services to its customers with 99% water service coverage and 98% wastewater service coverage. EPWU has an aggressive Capital Improvement Plan, not only to keep its system in optimal condition, but to upgrade it to meet more stringent regulations, respond to growth in future demand, and secure additional water sources.

The Paisano Valley transmission main transfers water from the Canutillo well fields to Sunset Reservoir and is a critical component of El Paso’s water system, providing service to the downtown area, as well as the lower portion of the Upper Valley in El Paso, Texas. EPWU has determined that the existing 36-inch water transmission main installed
in 1955 has reached the end of its useful life. It has experienced several small leaks, as well as occasional massive ruptures, mainly due to corrosion.

In addition, the engineering report recommended that the existing transmission main be replaced with a larger line to allow for additional capacity during drought conditions. This prompted EPWU to evaluate, design and construct a new waterline for bi-directional transfer of water from West to East during the winter months and from East to West
during the summer months.

Description

Replacement of the existing 36-inch waterline with a new 48-inch bidirectional transmission line has been divided into four phases. The current project covers the first two phases of line replacement, which include:

• Phase I involves the design and construction of a 48-inch potable water main from the intersection of Racetrack Drive and Torres to the Executive Center.
• Phase II involves the design and construction of a 48-inch potable water main from the Executive Center to the American Canal.

Phases III and IV are under development and will extend the water main to Schuster Ave. to complete replacement of the entire line.

Benefits

Replacing the deteriorated waterline will minimize the potential for pipeline breaks, thereby reducing the risk of service interruptions, drinking water contamination, water losses and damage from excessive water spills. Increasing water distribution capacity and providing for bidirectional flow will help ensure reliable service to residents within the project area and during drought conditions.