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Public water system · WY5600080

Active

Air Base Acres I&S District

At a glance

Air Base Acres I&S District (PWSID WY5600080) is an active community water system in Natrona County, Wyoming. It reports serving 236 people through 77 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in August 2021.

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

Population served

236

Service connections

77

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDWY5600080
System typeCommunity water system
Activity statusActive
Population served236
Service connections77
Primary water sourcePurchased surface water
Owner typeLocal government
Primacy agencyWY state drinking water program
City servedMills
StateWyoming
ZIP—
CountyNatrona County

How does Air Base Acres I&S District compare with other water systems in Natrona County?

By EPA's size categories, Air Base Acres I&S District is a very small system (500 people or fewer). Natrona County has 48 active public water systems. Its population served is well below the county average of 1,680 people per system, and accounts for 0.3% of the 80,646 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active community water system reports serving 6,703 people, so Air Base Acres I&S District 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. Wyoming has 332 active community water systems, 43% of the state's 775 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 79 Wyoming systems (10%) list purchased surface water as their primary source.

Who owns and regulates Air Base Acres I&S District?

EPA lists Air Base Acres I&S District as owned by a local government. The WY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 18 of the 48 active systems in Natrona County (38%) are also owned by a local government.

Does Air Base Acres I&S District have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in August 2021. The violations listed here began between July 1994 and August 2021. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 3 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 7 as resolved and 5 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.

BeganViolationContaminant or ruleHealth-basedStatus
2021-08-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2018-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2017-07-16Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5ARevised Total Coliform Rulecode 8000NoResolved
2011-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2008-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2003-12-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
2001-07-01Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51Lead and Copper Rulecode 5000NoResolved
2001-01-01Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51Lead and Copper Rulecode 5000NoResolved
1998-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesArchived
1997-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesArchived
1996-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1994-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21Total coliform bacteria (TCR)code 3100YesArchived

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.

Air Base Acres I&S District: frequently asked questions

Who runs Air Base Acres I&S District?

Air Base Acres I&S District (PWSID WY5600080) is a community water system owned by a local government. It is regulated by the WY state drinking water program.

How many people does Air Base Acres I&S District serve?

Air Base Acres I&S District reports serving 236 people through 77 service connections in Natrona County, Wyoming.

Where does Air Base Acres I&S District 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 Air Base Acres I&S District have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in August 2021. 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 Air Base Acres I&S District'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, 3 are health-based, and the most recent began in August 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the WY state drinking water program.

Where can I find Air Base Acres I&S District's water quality report?

As a community water system, Air Base Acres I&S District 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 Natrona County

Water systemCountyPopulation servedTypeSource
Casper, City ofNatrona59,000CommunityPurchased surface water
Mills, City ofNatrona4,050CommunityGroundwater under influence of surface water
Bar Nunn, Town ofNatrona4,000CommunityPurchased surface water
Evansville, Town ofNatrona2,873CommunitySurface water
Vista West Water CompanyNatrona1,600CommunityPurchased surface water
Pioneer Water & Sewer DistrictNatrona1,500CommunityPurchased 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, “Air Base Acres I&S District, PWSID WY5600080, Wyoming”, https://aquacensus.com/water-systems/wyoming/air-base-acres-i-s-district-wy5600080 (data as of October 1, 2026).