PlainWater

Community Water System · PWS WA5369150

Poulsbo City Of

Poulsbo, Washington 98370 - drinking water served from groundwater sources to 17,180 people, tracked in EPA SDWIS and UCMR5.

17,180
People served
418
EPA violations
32
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 418 drinking-water violations at Poulsbo City Of, 8% of them health-based - above the Washington per-system average.

418
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
17,180
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Poulsbo City Of

Poulsbo City Of is a local-owned community water system that delivers drinking water to 17,180 residents in Poulsbo, Washington (Kitsap County) through 5,968 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 418 total violations for this system , of which 32 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 383 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 Coliform (TCR), recorded in 32 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Poulsbo City Of's 418 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
17,180
Total Violations
418
Health-Based Violations
32
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,968
County
Kitsap
School/Daycare
No
MCL Violations
32
Monitoring Violations
383
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 32 1996
Vinyl chloride MR 18 2009
1,2-Dichloroethane MR 18 2009
Trichloroethylene MR 18 2009
Tetrachloroethylene MR 18 2009
CHLOROBENZENE MR 18 2009
Toluene MR 18 2009
cis-1,2-Dichloroethylene MR 18 2009
o-Dichlorobenzene MR 18 2009
1,1-Dichloroethylene MR 18 2009
1,1,1-Trichloroethane MR 18 2009
Carbon tetrachloride MR 18 2009
1,2-Dichloropropane MR 18 2009
1,1,2-Trichloroethane MR 18 2009
Styrene MR 18 2009
p-Dichlorobenzene MR 18 2009
trans-1,2-Dichloroethylene MR 18 2009
Ethylbenzene MR 18 2009
1,2,4-Trichlorobenzene MR 18 2009
Benzene MR 18 2009
DICHLOROMETHANE MR 18 2009
TTHM MR 9 2016
Total Haloacetic Acids (HAA5) MR 9 2016
Consumer Confidence Rule Other 2 2025
Coliform (TCR) MR 2 1996
Lead and Copper Rule MR 1 1997
Gross Alpha, Excl. Radon and U MR 1 1979
Diquat MR 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 348 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
PFMBA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 4/14/2025 <20.00 ppt 20.00 ppt Not Detected
NMeFOSAA 4/14/2025 <6.00 ppt 6.00 ppt Not Detected
HFPO-DA 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
PFTA 4/14/2025 <8.00 ppt 8.00 ppt Not Detected
4:2 FTS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
PFMPA 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFBA 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
PFNA 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFDoA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 4/14/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 4/14/2025 <2.00 ppt 2.00 ppt Not Detected
ADONA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeS 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFEESA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 4/14/2025 <7.00 ppt 7.00 ppt Not Detected
PFBS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFTA 4/14/2025 <8.00 ppt 8.00 ppt Not Detected
PFDoA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 4/14/2025 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 4/14/2025 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 4/14/2025 <6.00 ppt 6.00 ppt Not Detected
PFOA 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
NFDHA 4/14/2025 <20.00 ppt 20.00 ppt Not Detected
PFMBA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFOS 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeS 4/14/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpS 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 4/14/2025 <2.00 ppt 2.00 ppt Not Detected
PFPeA 4/14/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 4/14/2025 <4.00 ppt 4.00 ppt Not Detected

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 Poulsbo City Of.

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 WA5369150 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 Poulsbo City Of 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 2 SDWIS / WA5369150 / 7000
2016 TTHM MR 9 SDWIS / WA5369150 / 2950
2016 Total Haloacetic Acids (HAA5) MR 9 SDWIS / WA5369150 / 2456
2009 Vinyl chloride MR 18 SDWIS / WA5369150 / 2976
2009 1,2-Dichloroethane MR 18 SDWIS / WA5369150 / 2980
2009 Trichloroethylene MR 18 SDWIS / WA5369150 / 2984
2009 Tetrachloroethylene MR 18 SDWIS / WA5369150 / 2987
2009 CHLOROBENZENE MR 18 SDWIS / WA5369150 / 2989
2009 Toluene MR 18 SDWIS / WA5369150 / 2991
2009 cis-1,2-Dichloroethylene MR 18 SDWIS / WA5369150 / 2380
2009 o-Dichlorobenzene MR 18 SDWIS / WA5369150 / 2968
2009 1,1-Dichloroethylene MR 18 SDWIS / WA5369150 / 2977
2009 1,1,1-Trichloroethane MR 18 SDWIS / WA5369150 / 2981
2009 Carbon tetrachloride MR 18 SDWIS / WA5369150 / 2982
2009 1,2-Dichloropropane MR 18 SDWIS / WA5369150 / 2983

How Poulsbo City Of Compares

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

Metric Poulsbo City Of Washington avg Federal benchmark
Total violations 418 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 32 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 17,180 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 Poulsbo City Of water safe to drink?
Poulsbo City Of (PWS ID: WA5369150) has 418 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 17,180 people using Groundwater sources.
How many people does Poulsbo City Of serve?
Poulsbo City Of serves 17,180 people in Poulsbo, Washington. It is a Local-owned system using Groundwater water sources with 5,968 service connections.
What type of violations does Poulsbo City Of have?
Poulsbo City Of has 418 total violations: 32 health-based violations (MCL exceedances or treatment failures), 383 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Poulsbo City Of water?
No. Poulsbo City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Poulsbo City Of use?
Poulsbo City Of 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
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.