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Public water system · MO1024512

Active

Ray County Pwsd 3

At a glance

Ray County Pwsd 3 (PWSID MO1024512) is an active community water system in Ray County, Missouri. It reports serving 1,970 people through 749 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025.

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

Population served

1,970

Service connections

749

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDMO1024512
System typeCommunity water system
Activity statusActive
Population served1,970
Service connections749
Primary water sourcePurchased groundwater
Owner typeLocal government
Primacy agencyMO state drinking water program
City servedPolo
StateMissouri
ZIP—
CountyRay County

How does Ray County Pwsd 3 compare with other water systems in Ray County?

By EPA's size categories, Ray County Pwsd 3 is a small system (501 to 3,300 people). Ray County has 8 active public water systems, and Ray County Pwsd 3 is the 4th-largest of them by population served. Its population served is roughly in line with the county average of 1,909 people per system, and accounts for 13% of the 15,271 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active community water system reports serving 6,703 people, so Ray County Pwsd 3 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. Missouri has 1,612 active community water systems, 55% of the state's 2,943 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 177 Missouri systems (6%) list purchased groundwater as their primary source.

Who owns and regulates Ray County Pwsd 3?

EPA lists Ray County Pwsd 3 as owned by a local government. The MO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 5 of the 8 active systems in Ray County (63%) are also owned by a local government.

Does Ray County Pwsd 3 have drinking water violations?

EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between December 2003 and July 2025. By type: 3 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 3 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

BeganViolationContaminant or ruleHealth-basedStatus
2025-07-02ReportingNotification, Known or Potential LSL · code 4HLead and Copper Rule Revisionscode 5200NoUnaddressed
2013-05-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoResolved
2010-08-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoResolved
2003-12-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoResolved

All 4 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.

Ray County Pwsd 3: frequently asked questions

Who runs Ray County Pwsd 3?

Ray County Pwsd 3 (PWSID MO1024512) is a community water system owned by a local government. It is regulated by the MO state drinking water program.

How many people does Ray County Pwsd 3 serve?

Ray County Pwsd 3 reports serving 1,970 people through 749 service connections in Ray County, Missouri.

Where does Ray County Pwsd 3 get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Ray County Pwsd 3 have any drinking water violations?

EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. 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 Ray County Pwsd 3'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 4 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.

Where can I find Ray County Pwsd 3's water quality report?

As a community water system, Ray County Pwsd 3 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 Ray County

Water systemCountyPopulation servedTypeSource
Richmond PwsRay5,797CommunityGroundwater
Mo American LawsonRay2,546CommunityPurchased groundwater
Ray County Pwsd 1Ray2,490CommunityPurchased groundwater
Mo American OrrickRay752CommunityPurchased groundwater
Mo American Wood HeightsRay750CommunityPurchased groundwater
Hardin PwsRay569CommunityPurchased 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, “Ray County Pwsd 3, PWSID MO1024512, Missouri”, https://aquacensus.com/water-systems/missouri/ray-county-pwsd-3-mo1024512 (data as of October 1, 2026).