Public water system · WA5337350
ActiveMoran State Park - Summit Lake
At a glance
Moran State Park - Summit Lake (PWSID WA5337350) is an active transient non-community water system in San Juan County, Washington. It reports serving 4,803 people through 2 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by a state government. EPA's records list 2 violations for this system; all are health-based, and the most recent began in August 1993.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,803
Service connections
2
Primary source
GU
Groundwater under influence of surface water
System type
TNCWS
Transient non-community water system
System record
How does Moran State Park - Summit Lake compare with other water systems in San Juan County?
By EPA's size categories, Moran State Park - Summit Lake is a medium system (3,301 to 10,000 people). San Juan County has 112 active public water systems, and Moran State Park - Summit Lake is the 2nd-largest of them by population served. Its population served is about 13 times the county average of 361 people per system, and accounts for 12% of the 40,377 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Moran State Park - Summit Lake is about 33 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. Washington has 1,913 active transient non-community water systems, 41% of the state's 4,705 active systems. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 9 Washington systems (0.2%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Moran State Park - Summit Lake?
EPA lists Moran State Park - Summit Lake as owned by a state government. 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. 9 of the 112 active systems in San Juan County (8%) are also owned by a state government.
Does Moran State Park - Summit Lake have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in August 1993. The violations listed here began between July 1993 and August 1993. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1993-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 2 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.
Moran State Park - Summit Lake: frequently asked questions
Who runs Moran State Park - Summit Lake?
Moran State Park - Summit Lake (PWSID WA5337350) is a transient non-community water system owned by a state government. It is regulated by the WA state drinking water program.
How many people does Moran State Park - Summit Lake serve?
Moran State Park - Summit Lake reports serving 4,803 people through 2 service connections in San Juan County, Washington.
Where does Moran State Park - Summit Lake get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Moran State Park - Summit Lake have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in August 1993. 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 Moran State Park - Summit Lake'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 2 violations for this system; all are health-based, and the most recent began in August 1993. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Moran State Park - Summit Lake's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Moran State Park - Summit Lake 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 Juan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Moran State Park-Mountain Lake | San Juan | 4,804 | Transient non-community | Surface water |
| Moran State Park-Cascade Lake | San Juan | 4,783 | Transient non-community | Surface water |
| Eastsound Water Users Association | San Juan | 3,711 | Community | Surface water |
| Friday Harbor Town of | San Juan | 3,543 | Community | Surface water |
| Limekiln State Park | San Juan | 2,149 | Transient non-community | Groundwater |
| Roche Harbor Water System Inc. | San Juan | 2,091 | Community | 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, “Moran State Park - Summit Lake, PWSID WA5337350, Washington”, https://aquacensus.com/water-systems/washington/moran-state-park-summit-lake-wa5337350 (data as of October 1, 2026).