California service area
Water, wastewater and power infrastructure for California
California drives the nation on water reuse, groundwater sustainability and seawater and brackish desalination, and its wildfire and grid-reliability pressures make on-site power as important as treatment. Projects here are shaped by some of the strictest discharge and recycled water rules anywhere.
Regions
Where we work in California
Regional pages cover the water supply, industries and regulation that shape projects across California.
Los Angeles Basin
Los Angeles and Orange Counties
Southern California imports much of its water and is building more local supply through recycled water, groundwater recharge and desalination. Ports, entertainment, aerospace and dense urban sites make compact, high-quality treatment and resilient power priorities.
Los Angeles · Long Beach · Anaheim · Irvine
Inland Empire
Riverside and San Bernardino Counties
The Inland Empire is one of the largest logistics and warehousing hubs in the country, with groundwater basins that carry salts and contaminants and new wastewater regulations on dairy and food processors. Recycled water and brackish groundwater treatment are expanding fast.
Riverside · San Bernardino
San Diego and the Border Region
San Diego County
San Diego County imports most of its water and has diversified with the Carlsbad seawater desalination plant and an expanding potable reuse program. Biotech, defense, the Navy and a binational border economy keep demand for treatment, reuse and resilient power high.
San Diego · Carlsbad
San Francisco Bay Area
San Francisco, Alameda, Santa Clara, San Mateo and Contra Costa Counties
The Bay Area has strict nutrient and discharge limits for San Francisco Bay, active recycled water programs and one of the densest concentrations of technology and data center load in the world. Aging wastewater plants are in an extended upgrade cycle.
San Jose · San Francisco · Oakland
Central Valley (San Joaquin Valley)
Fresno, Kern, Tulare, Kings, Madera, Merced and Stanislaus Counties
The San Joaquin Valley is the heart of California agriculture, with nitrate and salinity problems in groundwater, many small disadvantaged communities, and groundwater pumping now limited under the Sustainable Groundwater Management Act. Food processors and small utilities need treatment that is dependable and simple to run.
Stockton · Modesto · Fresno · Bakersfield · Visalia
Sacramento Valley and Northern California
Sacramento, Yolo, Sutter, Butte and Shasta Counties
The Sacramento Valley and northern foothills combine state-capital growth, rice and orchard agriculture and wildfire-exposed rural communities. Utilities are rebuilding after fire seasons and adding reuse, while remote sites need power that does not depend on a single grid line.
Sacramento
Central Coast
Monterey, San Luis Obispo and Santa Barbara Counties
The Central Coast depends on constrained groundwater basins affected by seawater intrusion and nitrates, and it is the nation’s “salad bowl” for fresh-cut produce. Growers, processors and coastal communities use desalination, reuse and advanced treatment to protect supply.
Salinas · Santa Barbara
Coachella and Imperial Valleys
Riverside County east of the San Gorgonio Pass, and Imperial County
The desert valleys rely on the Colorado River and on groundwater that is high in salinity, and the Salton Sea region is a focus for geothermal and lithium development. Resorts, date and vegetable growers, and small unincorporated communities need arid-climate treatment and resilient power.
Palm Springs
North Coast and Sierra Foothills
Sonoma, Mendocino, Humboldt, Nevada and Placer Counties
Northern California’s coastal and foothill communities depend on small utilities and rural wastewater systems, with wineries, timber and tourism adding seasonal peaks. Wildfire and power shutoffs make on-site generation and storage a regular part of project scopes.
Cities
California cities we serve
- Water & power solutions in Los Angeles, CA
- Water & power solutions in Long Beach, CA
- Water & power solutions in Anaheim, CA
- Water & power solutions in Irvine, CA
- Water & power solutions in Riverside, CA
- Water & power solutions in San Bernardino, CA
- Water & power solutions in San Diego, CA
- Water & power solutions in Carlsbad, CA
- Water & power solutions in San Jose, CA
- Water & power solutions in San Francisco, CA
- Water & power solutions in Oakland, CA
- Water & power solutions in Sacramento, CA
- Water & power solutions in Stockton, CA
- Water & power solutions in Modesto, CA
- Water & power solutions in Fresno, CA
- Water & power solutions in Bakersfield, CA
- Water & power solutions in Visalia, CA
- Water & power solutions in Salinas, CA
- Water & power solutions in Santa Barbara, CA
- Water & power solutions in Palm Springs, CA
Design. Build. Deliver. Support.
Have a California project in mind?
Tell us the flow, the water and the site. An AWP engineer will come back with a design, a price and a schedule.





