Public water system · WA5356527
ActiveMount Pleasant School
At a glance
Mount Pleasant School (PWSID WA5356527) is an active non-transient non-community water system in Skamania County, Washington. It reports serving 72 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
72
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Mount Pleasant School compare with other water systems in Skamania County?
By EPA's size categories, Mount Pleasant School is a very small system (500 people or fewer). Skamania County has 56 active public water systems. Its population served is well below the county average of 335 people per system, and accounts for 0.4% of the 18,736 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Mount Pleasant School is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Washington has 400 active non-transient non-community water systems, 8.5% of the state's 4,705 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,370 Washington systems (93%) list groundwater as their primary source.
Who owns and regulates Mount Pleasant School?
EPA lists Mount Pleasant School as privately owned. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 24 of the 56 active systems in Skamania County (43%) are also privately owned.
Does Mount Pleasant School have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. The violations listed here began between January 2008 and January 2016. By type: 12 monitoring and reporting. The contaminants or rules involved are Nitrate, Total coliform bacteria (TCR), o-Dichlorobenzene and Ethylbenzene. 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 |
|---|---|---|---|---|
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2015-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | 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.
Mount Pleasant School: frequently asked questions
Who runs Mount Pleasant School?
Mount Pleasant School (PWSID WA5356527) is a non-transient non-community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Mount Pleasant School serve?
Mount Pleasant School reports serving 72 people through 2 service connections in Skamania County, Washington.
Where does Mount Pleasant School 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 Mount Pleasant School 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 January 2016. 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 Mount Pleasant School'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 January 2016. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Mount Pleasant School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mount Pleasant School is a non-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 Skamania County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Stevenson Water Dept | Skamania | 4,702 | Community | Surface water |
| Carson | Skamania | 3,015 | Community | Surface water |
| Johnston Ridge Observatory | Skamania | 2,506 | Transient non-community | Groundwater |
| Beacon Rock State Park 1 | Skamania | 1,375 | Transient non-community | Groundwater |
| North Bonneville City of | Skamania | 1,048 | Community | Groundwater |
| Underwood | Skamania | 1,000 | 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, “Mount Pleasant School, PWSID WA5356527, Washington”, https://aquacensus.com/water-systems/washington/mount-pleasant-school-wa5356527 (data as of October 1, 2026).