Public water system · CA3600370
ActiveWindmill Resort
At a glance
Windmill Resort (PWSID CA3600370) is an active transient non-community water system in San Bernardino County, Arizona. It reports serving 530 people through 190 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
530
Service connections
190
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Windmill Resort compare with other water systems in San Bernardino County?
By EPA's size categories, Windmill Resort is a small system (501 to 3,300 people). San Bernardino County has 6 active public water systems, and Windmill Resort is the 3rd-largest of them by population served. Its population served is about 14% below the county average of 618 people per system, and accounts for 14% of the 3,707 people reported by systems filed under the county. Across Arizona, the 1,769 active systems average 4,369 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Windmill Resort is about 3.7 times that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Arizona has 601 active transient non-community water systems, 34% of the state's 1,769 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 61 Arizona systems (3.4%) list surface water as their primary source.
Who owns and regulates Windmill Resort?
EPA lists Windmill Resort as privately owned. 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. 6 of the 6 active systems in San Bernardino County (100%) are also privately owned.
Does Windmill Resort have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2017. The violations listed here began between December 1983 and February 2017. By type: 10 public notice, recordkeeping or other, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminants or rules involved are Long Term 2 Enhanced Surface Water Treatment Rule and Total coliform bacteria (TCR). EPA lists 10 as archived and 2 as resolved. 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. 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 |
|---|---|---|---|---|
| 2017-02-13 | Required treatment not metFailure to Filter (SWTR) · code 42 | Long Term 2 Enhanced Surface Water Treatment Rulecode 0800 | Yes | Resolved |
| 2014-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1984-09-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-06-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-03-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-01-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1983-12-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
The 12 most recent 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.
Windmill Resort: frequently asked questions
Who runs Windmill Resort?
Windmill Resort (PWSID CA3600370) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Windmill Resort serve?
Windmill Resort reports serving 530 people through 190 service connections in San Bernardino County, Arizona.
Where does Windmill Resort get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Windmill Resort have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2017. 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 Windmill Resort'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. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2017. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Windmill Resort's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Windmill Resort is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in San Bernardino County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Emerald Cove Resort | San Bernardino | 1,000 | Transient non-community | Groundwater |
| Big Bend Resort | San Bernardino | 655 | Transient non-community | Surface water |
| Rio Del Colorado | San Bernardino | 515 | Transient non-community | Groundwater |
| Hi Sahara Oasis | San Bernardino | 507 | Transient non-community | Groundwater |
| Echo Lodge Resort | San Bernardino | 500 | Transient non-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, “Windmill Resort, PWSID CA3600370, Arizona”, https://aquacensus.com/water-systems/arizona/windmill-resort-ca3600370 (data as of October 1, 2026).