The City of Chino Hills provides both water and sewer service to most homes, with chloramine-treated water and an Inland Empire Utilities Agency charge on each sewer account, and permits come from City Building Services. Plumber Riverside CA is a referral service only. Call the number on this page to be connected with a local plumber in Chino Hills.

Plumbing services in Chino Hills
Hill country at the county's southwest tip
Chino Hills is at the far southwest corner of San Bernardino County, about 19 miles west of Riverside in a straight line, right next to Chino. The 2020 Census counted 78,411 residents.
A city utility for most homes
The City of Chino Hills supplies water and sewer service. Some properties, though, are sewer-only accounts with the City and get their water from a separate agency, so check your bill to see whether the City is your water provider.
City water is a blend: imported State Water Project water from the Metropolitan Water District, treated and delivered through the Water Facilities Authority and Monte Vista Water District, mixed with groundwater from City wells, Monte Vista Water District wells and Chino Basin Desalter Authority wells. Recycled water from the Inland Empire Utilities Agency is used for irrigation. The City's consumer confidence report lists chloramine as the disinfectant. Hardness appears in that report, so look up the current figure there before deciding on a softener.
The City's service line inventory found no lead service lines in its service area, and the inventory is posted on its Lead and Copper Rule Revisions page.
Sewer and after-hours contacts
The City collects sewer, and a pass-through charge set by the Inland Empire Utilities Agency is added to each sewer account for treatment. Utility Billing Customer Service is 909-364-2660 and Public Works is (909) 364-2800. For a water or sewer emergency after 4:45 p.m. or on weekends, the City lists (909) 364-2860. Use those numbers for a break or backup in the public system; anything inside your property line is a call for a plumber.
Permits for the jobs plumbers do
City Building Services issues plumbing permits, and its fee schedule lists the common items by name: each water heater, installing or repairing an onsite water supply line, installing or repairing a sewer line, grease interceptors and residential repipes. That list is a useful guide to what needs a permit here. The plumber normally pulls it.
Hills, slopes and fixtures
Homes spread across hillsides can have long service lines and steep sewer runs, so a leak or root intrusion may be some distance from the house. Chloramine can be harder than chlorine on some rubber parts, so worn toilet flappers and faucet washers are routine repairs. Water heaters must be strapped in this earthquake-prone region.
Gas safety
The City states that SoCalGas serves customers in Chino Hills. If you smell gas, leave the house first, then call 911 and SoCalGas at 1-800-427-2200 from outside.
How it differs from Riverside
Riverside Public Utilities chlorinates mostly local groundwater; Chino Hills uses chloramine on a blend that leans on imported water. Call the number on this page, describe the issue, and you will be connected with an independent plumber who works in Chino Hills. Price and scheduling are agreed with the plumber directly.
Common questions in Chino Hills
Does the City of Chino Hills supply my water?
Who do I call for a water emergency in Chino Hills at night?
Does a water heater replacement need a permit in Chino Hills?
Are there lead service lines in Chino Hills?
Nearby cities and towns
Sources
- Wikipedia: San Bernardino County, California
- City of Chino Hills: Water and sewer service
- City of Chino Hills: 2025 Water Quality Consumer Confidence Report
- City of Chino Hills: Water quality report
- City of Chino Hills: Utilities
- City of Chino Hills: Community Development master fee schedule
- City of Chino Hills: The Gas Company
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