Public water system · CA1910127
ActiveCovina-City, Water Dept.
At a glance
Covina-City, Water Dept. (PWSID CA1910127) is an active community water system in Los Angeles County, California. It reports serving 33,300 people through 8,617 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in November 1997.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
33,300
Service connections
8,617
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Covina-City, Water Dept. compare with other water systems in Los Angeles County?
By EPA's size categories, Covina-City, Water Dept. is a large system (10,001 to 100,000 people). Los Angeles County has 275 active public water systems. Its population served is roughly in line with the county average of 36,762 people per system, and accounts for 0.3% of the 10,109,668 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Covina-City, Water Dept. is about 5 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Covina-City, Water Dept.?
EPA lists Covina-City, Water Dept. as owned by a local government. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 100 of the 275 active systems in Los Angeles County (36%) are also owned by a local government.
Does Covina-City, Water Dept. have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in November 1997. The violations listed here began between April 1984 and November 1997. By type: 1 monitoring and reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminants or rules involved are Total coliform bacteria (TCR), Surface Water Treatment Rule and Nitrate. EPA lists 2 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1997-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1984-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Archived |
All 3 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Covina-City, Water Dept.: frequently asked questions
Who runs Covina-City, Water Dept.?
Covina-City, Water Dept. (PWSID CA1910127) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Covina-City, Water Dept. serve?
Covina-City, Water Dept. reports serving 33,300 people through 8,617 service connections in Los Angeles County, California.
Where does Covina-City, Water Dept. get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Covina-City, Water Dept. have any drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in November 1997. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Covina-City, Water Dept.'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in November 1997. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Covina-City, Water Dept.'s water quality report?
As a community water system, Covina-City, Water Dept. must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Los Angeles County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Los Angeles-City, Dept. of Water & Power | Los Angeles | 3,875,566 | Community | Surface water |
| Long Beach Utilities Department | Los Angeles | 466,772 | Community | Purchased surface water |
| Santa Clarita Valley Water Agency | Los Angeles | 294,090 | Community | Surface water |
| Gswc - Southwest | Los Angeles | 277,740 | Community | Purchased surface water |
| San Gabriel Valley Water Co.-El Monte | Los Angeles | 248,000 | Community | Groundwater |
| Los Angeles Cwwd 40 Reg 4 & 34 Lancaster | Los Angeles | 208,129 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Covina-City, Water Dept., PWSID CA1910127, California”, https://aquacensus.com/water-systems/california/covina-city-water-dept-ca1910127 (data as of October 1, 2026).