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Montessori Country School AP

PWS ID: WA5308674 · Suquamish, Washington 98392-0555

Montessori Country School AP serves 125 people in Suquamish, Washington using Groundwater water sources. It has 50 recorded EPA violations, including 3 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: Montessori Country School AP

Montessori Country School AP is a private-owned non-transient non-community water system that delivers drinking water to 125 residents in Suquamish, Washington (Kitsap County) through 5 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 50 total violations for this system , of which 3 (6%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 47 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 4 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. Montessori Country School AP's 50 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
125
Total Violations
50
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
5
County
Kitsap
School/Daycare
Yes
MCL Violations
3
Monitoring Violations
47
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 4 1993
Pentachlorophenol MR 3 2014
Coliform (TCR) MCL 3 1994
Dinoseb MR 2 2014
2,4,5-TP MR 2 2014
BHC-GAMMA MR 2 2014
Toxaphene MR 2 2014
Di(2-ethylhexyl) phthalate MR 2 2014
Atrazine MR 2 2014
LASSO MR 2 2014
Dalapon MR 2 2014
Endrin MR 2 2014
Methoxychlor MR 2 2014
Simazine MR 2 2014
Hexachlorocyclopentadiene MR 2 2014
Heptachlor epoxide MR 2 2014
HEXACHLOROBENZENE MR 2 2014
Benzo(a)pyrene MR 2 2014
Lead and Copper Rule MR 2 2020
Di(2-ethylhexyl) adipate MR 2 2014
Heptachlor MR 2 2014
Chlordane MR 2 2014
Picloram MR 2 2014

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 Montessori Country School AP.

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 WA5308674 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 Montessori Country School AP 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
2020 Lead and Copper Rule MR 2 SDWIS / WA5308674 / 5000
2014 Pentachlorophenol MR 3 SDWIS / WA5308674 / 2326
2014 Dinoseb MR 2 SDWIS / WA5308674 / 2041
2014 2,4,5-TP MR 2 SDWIS / WA5308674 / 2110
2014 BHC-GAMMA MR 2 SDWIS / WA5308674 / 2010
2014 Toxaphene MR 2 SDWIS / WA5308674 / 2020
2014 Di(2-ethylhexyl) phthalate MR 2 SDWIS / WA5308674 / 2039
2014 Atrazine MR 2 SDWIS / WA5308674 / 2050
2014 LASSO MR 2 SDWIS / WA5308674 / 2051
2014 Dalapon MR 2 SDWIS / WA5308674 / 2031
2014 Endrin MR 2 SDWIS / WA5308674 / 2005
2014 Methoxychlor MR 2 SDWIS / WA5308674 / 2015
2014 Simazine MR 2 SDWIS / WA5308674 / 2037
2014 Hexachlorocyclopentadiene MR 2 SDWIS / WA5308674 / 2042
2014 Heptachlor epoxide MR 2 SDWIS / WA5308674 / 2067

How Montessori Country School AP Compares

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

Metric Montessori Country School AP Washington avg Federal benchmark
Total violations 50 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 3 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 125 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 Montessori Country School AP water safe to drink? ▼
Montessori Country School AP (PWS ID: WA5308674) has 50 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 125 people using Groundwater sources.
How many people does Montessori Country School AP serve? ▼
Montessori Country School AP serves 125 people in Suquamish, Washington. It is a Private-owned system using Groundwater water sources with 5 service connections.
What type of violations does Montessori Country School AP have? ▼
Montessori Country School AP has 50 total violations: 3 health-based violations (MCL exceedances or treatment failures), 47 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Montessori Country School AP water? ▼
No PFAS testing data is available for Montessori Country School AP under the EPA's UCMR5 monitoring program.
What water source does Montessori Country School AP use? ▼
Montessori Country School AP uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.

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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.

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