Calexico, California, USA
Calexico, California, USAWater System Improvements Project for Calexico, California
Project Status: Completed

General Information
Sector
Water
Sponsor
City of Calexico, CA
Benefited population
26,400
Certification date
June 24,1998
Financing
Project cost
US 15.03M
NADBank Funds
US 6.48M - NADBank Grant: BEIF
Related documents
Background
Calexico obtains its drinking water from the Colorado River. Its water treatment plant (WTP) was constructed in 1949 and expanded in 1965 to treat up to 10 million gallons per day (mgd). In 1997, the California Department of Health Services (DHS) Office of Drinking Water identified numerous deficiencies in the WTP that compromised its ability to provide properly treated and disinfected drinking water in compliance with the applicable quality standards on a continuous basis to meet growing demand. Population growth in the service area had increased average daily flow requirements by 6 mgd and peak flows during the summer months by 8 mgd. Moreover, the city had limited water storage capacity. The State encouraged the city to expand the plant to correct these deficiencies.
Project Scope
The project consisted of the rehabilitation and expansion of the water treatment plant, from 10 to 16 mgd, as well as construction of a 24-inch diameter, 13,200-foot water distribution main and, a 6-million gallon treated water storage reservoir and pump station.
Benefits
The project provided a reliable source of safe drinking water by improving the water treatment system and correcting the deficiencies found by DHS, as well as provide additional capacity to meet future growth of the community through the year 2020.