Public water system · CA3710019
ActiveRamona Municipal Wd
At a glance
Ramona Municipal Wd (PWSID CA3710019) is an active community water system in San Diego County, California. It reports serving 37,047 people through 9,453 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in April 2002.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
37,047
Service connections
9,453
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Ramona Municipal Wd compare with other water systems in San Diego County?
By EPA's size categories, Ramona Municipal Wd is a large system (10,001 to 100,000 people). San Diego County has 191 active public water systems. Its population served is about twice the county average of 19,427 people per system, and accounts for 1% of the 3,710,459 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 Ramona Municipal Wd is about 5.5 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 Ramona Municipal Wd?
EPA lists Ramona Municipal Wd 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. 58 of the 191 active systems in San Diego County (30%) are also owned by a local government.
Does Ramona Municipal Wd have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in April 2002. By type: 1 public notice, recordkeeping or other. EPA lists 1 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2002-04-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
The one violation in EPA's records.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.
Ramona Municipal Wd: frequently asked questions
Who runs Ramona Municipal Wd?
Ramona Municipal Wd (PWSID CA3710019) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Ramona Municipal Wd serve?
Ramona Municipal Wd reports serving 37,047 people through 9,453 service connections in San Diego County, California.
Where does Ramona Municipal Wd 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 Ramona Municipal Wd have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in April 2002. 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 Ramona Municipal Wd'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 one violation for this system; it is not health-based, and the most recent began in April 2002. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Ramona Municipal Wd's water quality report?
As a community water system, Ramona Municipal Wd 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 San Diego County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Diego, City of | San Diego | 1,385,379 | Community | Surface water |
| Helix Water District | San Diego | 277,668 | Community | Surface water |
| Otay Water District | San Diego | 238,008 | Community | Purchased surface water |
| Sweetwater Authority | San Diego | 191,282 | Community | Surface water |
| Oceanside, City of | San Diego | 171,483 | Community | Purchased surface water |
| Escondido, City of | San Diego | 137,044 | Community | Surface water |
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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, “Ramona Municipal Wd, PWSID CA3710019, California”, https://aquacensus.com/water-systems/california/ramona-municipal-wd-ca3710019 (data as of October 1, 2026).