Department of Public Utilities

Facilities & Infrastructure

Facilities & Infrastructure

As a nationally-recognized industry leader in wastewater management, the City of Fresno provides high-quality collection, treatment, and reclamation services to preserve the environment and ensure the health, safety, and economic vitality of the community.

One way we manage our water supply is by recycling the water that we use. The greater Fresno area has an abundance of wastewater—water that has been used for washing, flushing, or that finds its way down the drain. We treat about 68 million gallons of wastewater every day at the Fresno-Clovis Regional Wastewater Reclamation Facility (RWRF)—enough to cover the area of a football field more than 15 stories high. The rest of the recycled water is sent to 1,700 acres of ponds to percolate into the ground.

Existing Infrastructure

WMD-Collection System Maintenance (CSM) performs preventive maintenance of over 1,500 miles of sewer, over 23,000 manholes and 15 sewer lift stations. Sewer lines ranges from 6” to 84” in diameter and some of them are over 75 years old. Current sewer pipes are made of polyvinyl chloride (PVC). However 50% of existing pipes are made of vitrified clay (VCP).

Collection Systems

The City of Fresno owns and maintains the sanitary collection system that serves the City and other participating agencies. The City’s collection system and other infrastructures are maintained by the Collection System Maintenance (CSM) workgroup of Wastewater Management Division. The system is comprised of approximately 1,500 mile of pipes ranging from 4” to 84” in diameter that convey over 65 million gallons of sanitary sewer per day to the Fresno-Clovis Regional Reclamation Facility. Other infrastructure includes over 23,000 manholes and 15 sewer lift stations.

CSM operators perform preventive and repair maintenance of the collection system on a daily basis as well as main line condition assessment and repairs as well as inspection of new connections to the main line. CSM respond to sewer emergencies 24/7, 365 days per year.

Oversight of Treatment Plant

Highly trained, experienced, State-certified treatment plant operators employed by the City of Fresno are on duty 24 hours a day, every day, to oversee treatment plant processes, and to react promptly to any unusual condition. Many controls of treatment processes are highly automated requiring a great deal of technical expertise. Other processes require manual controls which rely on the operators frequent physical presence to observe conditions and make adjustments. Weekends, holidays, and at the wee hours of the morning… operators are carefully monitoring every aspect of the facility.

Reliability of Treatment Facility

Reliability at the Fresno/Clovis Regional Wastewater Reclamation Facility is very high. The plant is staffed 24 hours a day with operators who are able to respond to any situations that arise. Critical treatment processes are designed with redundant equipment, which means that if a mechanical or electrical component fails, a spare is waiting to take its place. Mechanical and electrical staff members are on-call 24 hours a day in case of a failure that requires their immediate assistance. Maintenance staff aggressively cares for the equipment to predict and prevent breakdowns, further adding to the reliability of the facility.

Quality of Treated Wastewater

Our on-site instrumentation provides information and records data on wastewater quality around the clock. Information is collected and stored automatically in a database for evaluation by our operational process specialists. Samples are collected and analyzed by certified laboratory technicians in our on-site, State-certified laboratory. This information is also added automatically to our operational database. Independent laboratories periodically verify quality as well.

Emergency Response

If you witness a sanitary sewer overflow (sewer coming out of a manhole) or suspect a main line blockage is causing sewer to back up at your home, contact WMD-Collection System Maintenance at (559) 621-1496 immediately. Your call is important to us. To ensure prompt assistance, make sure you talk directly to a City representative. VOICE MESSAGES OR E-MAILS ARE NOT RECOMMENDED.

Staff is available 24/7 to respond to sanitary sewer emergencies. Once on site, WMD will determine if the back-up is a lateral issue or a main line issue. If a lateral issue, the owner is responsible to maintain the property and should call a certified plumber to take care of the problem. If the back-up is caused by a mainline issue, the City will proceed cleaning the line and will assess the cause of the problem and proceed with the necessary repairs, outreach or increase preventive maintenance to minimize future occurrences.

(559) 621-1496 will connect you with City personnel 24/7 for sewer emergencies.