Public water system · CA2000849

Active

Md 60 Dillon Estates

At a glance

Md 60 Dillon Estates (PWSID CA2000849) is an active community water system in Madera County, California. It reports serving 150 people through 38 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in September 2015.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

150

Service connections

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDCA2000849

System typeCommunity water system

Activity statusActive

Population served150

Service connections38

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyCA state drinking water program

City served—

StateCalifornia

ZIP—

CountyMadera County

How does Md 60 Dillon Estates compare with other water systems in Madera County?

By EPA's size categories, Md 60 Dillon Estates is a very small system (500 people or fewer). Madera County has 202 active public water systems. Its population served is well below the county average of 915 people per system, and accounts for less than 0.1% of the 184,760 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 Md 60 Dillon Estates is well below 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.

Who owns and regulates Md 60 Dillon Estates?

EPA lists Md 60 Dillon Estates 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. 46 of the 202 active systems in Madera County (23%) are also owned by a local government.

Does Md 60 Dillon Estates have drinking water violations?

EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in September 2015. The violations listed here began between July 1993 and September 2015. By type: 6 contaminant level above the legal limit and 4 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 10 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
2015-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2014-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2014-07-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2014-04-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2012-11-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2010-11-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2007-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2007-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1999-01-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
1993-07-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved

All 10 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.

Md 60 Dillon Estates: frequently asked questions

Who runs Md 60 Dillon Estates?

Md 60 Dillon Estates (PWSID CA2000849) is a community water system owned by a local government. It is regulated by the CA state drinking water program.

How many people does Md 60 Dillon Estates serve?

Md 60 Dillon Estates reports serving 150 people through 38 service connections in Madera County, California.

Where does Md 60 Dillon Estates get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Md 60 Dillon Estates have any drinking water violations?

EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in September 2015. 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 Md 60 Dillon Estates' 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 10 violations for this system; 6 are health-based, and the most recent began in September 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.

Where can I find Md 60 Dillon Estates' water quality report?

As a community water system, Md 60 Dillon Estates 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 Madera County

Water system	County	Population served	Type	Source
City of Madera	Madera	66,560	Community	Groundwater
Chowchilla City Water Dept	Madera	13,916	Community	Groundwater
Lupine Bass Lake	Madera	11,930	Transient non-community	Groundwater
Madera Valley Water Company	Madera	6,494	Community	Groundwater
Riverstone/Rootcreek Water District	Madera	5,507	Community	Groundwater
Yosemite Spring Park Util Co	Madera	5,300	Community	Groundwater

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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, “Md 60 Dillon Estates, PWSID CA2000849, California”, https://aquacensus.com/water-systems/california/md-60-dillon-estates-ca2000849 (data as of October 1, 2026).