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ROCHESTER HIGH SCHOOL

PWS ID: WA5357864 · Rochester, Washington 98579

ROCHESTER HIGH SCHOOL serves 1,275 people in Rochester, Washington using Groundwater water sources. It has 42 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ROCHESTER HIGH SCHOOL

ROCHESTER HIGH SCHOOL is a local-owned non-transient non-community water system that delivers drinking water to 1,275 residents in Rochester, Washington (Thurston County) through 3 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 42 total violations for this system , of which 5 (12%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 36 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 7 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. ROCHESTER HIGH SCHOOL's 42 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
1,275
Total Violations
42
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
3
County
Thurston
School/Daycare
Yes
MCL Violations
5
Monitoring Violations
36
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 2003
Coliform (TCR) MCL 5 2005
Nitrate MR 4 2020
2,4,5-TP MR 2 2014
Dalapon MR 2 2014
Picloram MR 2 2014
Pentachlorophenol MR 2 2014
Revised Total Coliform Rule MON 2 2018
Dinoseb MR 2 2014
Arsenic MR 1 2008
Chromium MR 1 2008
CYANIDE MR 1 2008
Mercury MR 1 2008
Nickel MR 1 2008
Selenium MR 1 2008
Antimony, Total MR 1 2008
Beryllium, Total MR 1 2008
Thallium, Total MR 1 2008
Cadmium MR 1 2008
Barium MR 1 2008
Lead and Copper Rule MR 1 2000
Fluoride MR 1 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 ROCHESTER HIGH SCHOOL.

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 WA5357864 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 ROCHESTER HIGH SCHOOL 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 Nitrate MR 4 SDWIS / WA5357864 / 1040
2018 Revised Total Coliform Rule MON 2 SDWIS / WA5357864 / 8000
2014 2,4,5-TP MR 2 SDWIS / WA5357864 / 2110
2014 Dalapon MR 2 SDWIS / WA5357864 / 2031
2014 Picloram MR 2 SDWIS / WA5357864 / 2040
2014 Pentachlorophenol MR 2 SDWIS / WA5357864 / 2326
2014 Dinoseb MR 2 SDWIS / WA5357864 / 2041
2008 Arsenic MR 1 SDWIS / WA5357864 / 1005
2008 Chromium MR 1 SDWIS / WA5357864 / 1020
2008 CYANIDE MR 1 SDWIS / WA5357864 / 1024
2008 Mercury MR 1 SDWIS / WA5357864 / 1035
2008 Nickel MR 1 SDWIS / WA5357864 / 1036
2008 Selenium MR 1 SDWIS / WA5357864 / 1045
2008 Antimony, Total MR 1 SDWIS / WA5357864 / 1074
2008 Beryllium, Total MR 1 SDWIS / WA5357864 / 1075

How ROCHESTER HIGH SCHOOL Compares

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

Metric ROCHESTER HIGH SCHOOL Washington avg Federal benchmark
Total violations 42 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 5 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 1,275 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 ROCHESTER HIGH SCHOOL water safe to drink? ▼
ROCHESTER HIGH SCHOOL (PWS ID: WA5357864) has 42 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,275 people using Groundwater sources.
How many people does ROCHESTER HIGH SCHOOL serve? ▼
ROCHESTER HIGH SCHOOL serves 1,275 people in Rochester, Washington. It is a Local-owned system using Groundwater water sources with 3 service connections.
What type of violations does ROCHESTER HIGH SCHOOL have? ▼
ROCHESTER HIGH SCHOOL has 42 total violations: 5 health-based violations (MCL exceedances or treatment failures), 36 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ROCHESTER HIGH SCHOOL water? ▼
No PFAS testing data is available for ROCHESTER HIGH SCHOOL under the EPA's UCMR5 monitoring program.
What water source does ROCHESTER HIGH SCHOOL use? ▼
ROCHESTER HIGH SCHOOL 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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