es

San Luis, Arizona, USA

New Water Transmission Line San Luis, Arizona

Status: Completed construction

Background

The city of San Luis AZ has two separate Water Distribution Systems (WDS). The Central WDS with a capacity of 4 million gallons per day (MGD), and the East Mesa system with 3 MGD capacity. The Central system operated at full capacity during the summer time, while, the East Mesa system was underutilized.

Description

Achieve proper drinking water service reliability for the city of San Luis, AZ, through the interconnection of  two  existing  main systems by a new PVC water main, in order to avoid incidents of low pressure and/or service interruption, contributing to the reduction of the risks associated with waterborne diseases.

Benefits

The Project consisted of the installation of a new 16 inch diameter PVC water pipeline to interconnect the two WDS.  The new pipeline provided bidirectional flow of drinking  water, improving the operation capacity of the city’s water supply systems to meet daily peak demand  during  the summer season, especially in the Central WDS.

Project Financing

Total Project Cost US 0.61M
NADB Funding US 0.5M - NADB Grant: CAP

Project Photos

Results Measurement

Results are measured upon completion of the project through a closeout process that assesses project performance within 6-12 months after completion, as well as the achievement of the goals and objectives established at the time of project certification and financing approval.

Outcomes

Increase access and use of drinking water

Increase availability water quantity

Indicators

Actual (2014)

Improved services (Connections)

6,256

Water volume flow available (MGD)

 

7 MGD

Outputs

 

Install 16" C-905 Class 235 PVC Water Main (lineal ft)

8,685

16” Resilient Wedge Gate Valves

11

12” Resilient Wedge Gate Valves

1

Air Release Valve

1

Significant project contributions

Improved connections

6,256