Public water system · MT0003312
ActiveOutlook County Sewer and Water
At a glance
Outlook County Sewer and Water (PWSID MT0003312) is an active community water system in Sheridan County, Montana. It reports serving 96 people through 49 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
96
Service connections
49
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Outlook County Sewer and Water compare with other water systems in Sheridan County?
By EPA's size categories, Outlook County Sewer and Water is a very small system (500 people or fewer). Sheridan County has 8 active public water systems, and Outlook County Sewer and Water is the 4th-largest of them by population served. Its population served is well below the county average of 346 people per system, and accounts for 3.5% of the 2,764 people reported by systems filed under the county. Across Montana, the 2,378 active systems average 489 people each. Nationally, the average active community water system reports serving 6,703 people, so Outlook County Sewer and Water 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. Montana has 853 active community water systems, 36% of the state's 2,378 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,994 Montana systems (84%) list groundwater as their primary source.
Who owns and regulates Outlook County Sewer and Water?
EPA lists Outlook County Sewer and Water as owned by a local government. The MT 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 Sheridan County (63%) are also owned by a local government.
Does Outlook County Sewer and Water have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024. The violations listed here began between January 2020 and December 2024. By type: 10 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2024-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Berylliumcode 1075 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
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.
Outlook County Sewer and Water: frequently asked questions
Who runs Outlook County Sewer and Water?
Outlook County Sewer and Water (PWSID MT0003312) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Outlook County Sewer and Water serve?
Outlook County Sewer and Water reports serving 96 people through 49 service connections in Sheridan County, Montana.
Where does Outlook County Sewer and Water 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 Outlook County Sewer and Water have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024. 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 Outlook County Sewer and Water'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, none is health-based, and the most recent began in December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Outlook County Sewer and Water's water quality report?
As a community water system, Outlook County Sewer and Water 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 Sheridan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Plentywood Water Department | Sheridan | 1,700 | Community | Purchased surface water |
| Medicine Lake Town of | Sheridan | 600 | Community | Purchased surface water |
| Westby Town of | Sheridan | 172 | Community | Purchased surface water |
| Antelope County Water and Sewer | Sheridan | 59 | Community | Purchased surface water |
| Brush Lake State Park | Sheridan | 58 | Transient non-community | Purchased surface water |
| Sunset Camping LLC | Sheridan | 42 | Transient non-community | Purchased 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, “Outlook County Sewer and Water, PWSID MT0003312, Montana”, https://aquacensus.com/water-systems/montana/outlook-county-sewer-and-water-mt0003312 (data as of October 1, 2026).