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Community Water System · PWS WA5358144

Vistas Inc

Sequim, Washington 98382 - drinking water served from groundwater sources to 241 people, tracked in EPA SDWIS and UCMR5.

241
People served
336
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 336 drinking-water violations at Vistas Inc - above the Washington per-system average.

336
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
241
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Vistas Inc

Vistas Inc is a private-owned community water system that delivers drinking water to 241 residents in Sequim, Washington (Clallam County) through 124 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 336 total violations for this system , of which 1 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 324 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Nitrate, recorded in 34 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. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%).

Vistas Inc's 336 violations sit above the Washington average.

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
241
Total Violations
336
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
124
County
Clallam
School/Daycare
No
MCL Violations
0
Monitoring Violations
324
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 34 2018
Lead and Copper Rule MR 20 2007
Pentachlorophenol MR 8 2008
1,2,4-Trichlorobenzene MR 6 2008
cis-1,2-Dichloroethylene MR 6 2008
DICHLOROMETHANE MR 6 2008
o-Dichlorobenzene MR 6 2008
Vinyl chloride MR 6 2008
1,2-Dichloroethane MR 6 2008
Carbon tetrachloride MR 6 2008
1,2-Dichloropropane MR 6 2008
Trichloroethylene MR 6 2008
1,1,2-Trichloroethane MR 6 2008
Tetrachloroethylene MR 6 2008
Benzene MR 6 2008
Toluene MR 6 2008
Ethylbenzene MR 6 2008
Styrene MR 6 2008
p-Dichlorobenzene MR 6 2008
1,1-Dichloroethylene MR 6 2008
trans-1,2-Dichloroethylene MR 6 2008
1,1,1-Trichloroethane MR 6 2008
CHLOROBENZENE MR 6 2008
Consumer Confidence Rule Other 5 2025
Coliform (TCR) MR 5 1995
Chromium MR 4 2008
Fluoride MR 4 2008
Mercury MR 4 2008
Nickel MR 4 2008
Selenium MR 4 2008

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 Vistas Inc.

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 WA5358144 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 Vistas Inc 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
2025 Consumer Confidence Rule Other 5 SDWIS / WA5358144 / 7000
2018 Nitrate MR 34 SDWIS / WA5358144 / 1040
2018 Revised Total Coliform Rule MON 1 SDWIS / WA5358144 / 8000
2018 Revised Total Coliform Rule TT 1 SDWIS / WA5358144 / 8000
2014 TTHM MR 1 SDWIS / WA5358144 / 2950
2014 Total Haloacetic Acids (HAA5) MR 1 SDWIS / WA5358144 / 2456
2008 Pentachlorophenol MR 8 SDWIS / WA5358144 / 2326
2008 1,2,4-Trichlorobenzene MR 6 SDWIS / WA5358144 / 2378
2008 cis-1,2-Dichloroethylene MR 6 SDWIS / WA5358144 / 2380
2008 DICHLOROMETHANE MR 6 SDWIS / WA5358144 / 2964
2008 o-Dichlorobenzene MR 6 SDWIS / WA5358144 / 2968
2008 Vinyl chloride MR 6 SDWIS / WA5358144 / 2976
2008 1,2-Dichloroethane MR 6 SDWIS / WA5358144 / 2980
2008 Carbon tetrachloride MR 6 SDWIS / WA5358144 / 2982
2008 1,2-Dichloropropane MR 6 SDWIS / WA5358144 / 2983

How Vistas Inc Compares

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

Metric Vistas Inc Washington avg Federal benchmark
Total violations 336 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 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 241 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Vistas Inc water safe to drink? ▼
Vistas Inc (PWS ID: WA5358144) has 336 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 241 people using Groundwater sources.
How many people does Vistas Inc serve? ▼
Vistas Inc serves 241 people in Sequim, Washington. It is a Private-owned system using Groundwater water sources with 124 service connections.
What type of violations does Vistas Inc have? ▼
Vistas Inc has 336 total violations: 1 health-based violations (MCL exceedances or treatment failures), 324 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Vistas Inc water? ▼
No PFAS testing data is available for Vistas Inc under the EPA's UCMR5 monitoring program.
What water source does Vistas Inc use? ▼
Vistas Inc 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.