PlainWater

COACH POST MOBILE PARK

PWS ID: WA5313923 · Port Orchard, Washington 98366

COACH POST MOBILE PARK serves 65 people in Port Orchard, Washington using Groundwater water sources. It has 38 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: COACH POST MOBILE PARK

COACH POST MOBILE PARK is a private-owned community water system that delivers drinking water to 65 residents in Port Orchard, Washington (Thurston County) through 75 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 38 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 monitoring and reporting violations are on file. The most recent violation on record dates to 2011.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 2 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. COACH POST MOBILE PARK's 38 violations sit below the Washington average. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
65
Total Violations
38
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
75
County
Thurston
School/Daycare
No
MCL Violations
0
Monitoring Violations
33
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 2 1999
cis-1,2-Dichloroethylene MR 1 2002
DICHLOROMETHANE MR 1 2002
o-Dichlorobenzene MR 1 2002
p-Dichlorobenzene MR 1 2002
1,1-Dichloroethylene MR 1 2002
trans-1,2-Dichloroethylene MR 1 2002
1,1,1-Trichloroethane MR 1 2002
Carbon tetrachloride MR 1 2002
1,2-Dichloropropane MR 1 2002
Trichloroethylene MR 1 2002
CHLOROBENZENE MR 1 2002
Benzene MR 1 2002
Toluene MR 1 2002
Ethylbenzene MR 1 2002
Styrene MR 1 2002
Lead and Copper Rule MR 1 1998
Fluoride MR 1 1979
Nitrate MR 1 1979
Barium MR 1 1979
Asbestos MR 1 2011
Gross Alpha, Excl. Radon and U MR 1 1979
Arsenic MR 1 1979
Cadmium MR 1 1979
Selenium MR 1 1979
1,2,4-Trichlorobenzene MR 1 2002
Chromium MR 1 1979
Consumer Confidence Rule Other 1 1999
Vinyl chloride MR 1 2002
1,2-Dichloroethane MR 1 2002

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for COACH POST MOBILE PARK.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID WA5313923 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health — Office of Drinking Water is the primacy agency that licenses and inspects COACH POST MOBILE PARK under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health — Office of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2011 Asbestos MR 1 SDWIS / WA5313923 / 1094
2002 cis-1,2-Dichloroethylene MR 1 SDWIS / WA5313923 / 2380
2002 DICHLOROMETHANE MR 1 SDWIS / WA5313923 / 2964
2002 o-Dichlorobenzene MR 1 SDWIS / WA5313923 / 2968
2002 p-Dichlorobenzene MR 1 SDWIS / WA5313923 / 2969
2002 1,1-Dichloroethylene MR 1 SDWIS / WA5313923 / 2977
2002 trans-1,2-Dichloroethylene MR 1 SDWIS / WA5313923 / 2979
2002 1,1,1-Trichloroethane MR 1 SDWIS / WA5313923 / 2981
2002 Carbon tetrachloride MR 1 SDWIS / WA5313923 / 2982
2002 1,2-Dichloropropane MR 1 SDWIS / WA5313923 / 2983
2002 Trichloroethylene MR 1 SDWIS / WA5313923 / 2984
2002 CHLOROBENZENE MR 1 SDWIS / WA5313923 / 2989
2002 Benzene MR 1 SDWIS / WA5313923 / 2990
2002 Toluene MR 1 SDWIS / WA5313923 / 2991
2002 Ethylbenzene MR 1 SDWIS / WA5313923 / 2992

How COACH POST MOBILE PARK Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric COACH POST MOBILE PARK Washington avg Federal benchmark
Total violations 38 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 65 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

Federal MCL reference — Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is COACH POST MOBILE PARK water safe to drink?
COACH POST MOBILE PARK (PWS ID: WA5313923) has 38 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 65 people using Groundwater sources.
How many people does COACH POST MOBILE PARK serve?
COACH POST MOBILE PARK serves 65 people in Port Orchard, Washington. It is a Private-owned system using Groundwater water sources with 75 service connections.
What type of violations does COACH POST MOBILE PARK have?
COACH POST MOBILE PARK has 38 total violations: 0 health-based violations (MCL exceedances or treatment failures), 33 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in COACH POST MOBILE PARK water?
No PFAS testing data is available for COACH POST MOBILE PARK under the EPA's UCMR5 monitoring program.
What water source does COACH POST MOBILE PARK use?
COACH POST MOBILE PARK uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial