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MULLEN HILL TERRACE MHP

PWS ID: WA5357598 · Spokane, Washington 99224

MULLEN HILL TERRACE MHP serves 207 people in Spokane, Washington using Groundwater water sources. It has 196 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MULLEN HILL TERRACE MHP

MULLEN HILL TERRACE MHP is a private-owned community water system that delivers drinking water to 207 residents in Spokane, Washington (Spokane County) through 118 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 196 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 190 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 26 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. MULLEN HILL TERRACE MHP's 196 violations sit above 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
207
Total Violations
196
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
118
County
Spokane
School/Daycare
No
MCL Violations
0
Monitoring Violations
190
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 26 2011
Revised Total Coliform Rule MON 17 2024
Nitrate MR 11 2023
Arsenic MR 8 2011
Barium MR 8 2011
Cadmium MR 8 2011
Fluoride MR 8 2011
Mercury MR 8 2011
Selenium MR 8 2011
Chromium MR 8 2011
Nickel MR 7 2011
Thallium, Total MR 7 2011
Antimony, Total MR 7 2011
Beryllium, Total MR 7 2011
CYANIDE MR 7 2011
Lead and Copper Rule MR 2 2022
Pentachlorophenol MR 2 2002
Consumer Confidence Rule Other 1 2025
Trichloroethylene MR 1 2002
1,2,4-Trichlorobenzene MR 1 2002
cis-1,2-Dichloroethylene MR 1 2002
Di(2-ethylhexyl) phthalate MR 1 2002
Gross Alpha, Excl. Radon and U MR 1 1979
Endrin MR 1 2002
LASSO MR 1 2002
Simazine MR 1 2002
HEXACHLOROBENZENE MR 1 2002
2,4,5-TP MR 1 2002
Tetrachloroethylene MR 1 2002
trans-1,2-Dichloroethylene 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 MULLEN HILL TERRACE MHP.

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 WA5357598 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 MULLEN HILL TERRACE MHP 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 1 SDWIS / WA5357598 / 7000
2024 Revised Total Coliform Rule MON 17 SDWIS / WA5357598 / 8000
2023 Nitrate MR 11 SDWIS / WA5357598 / 1040
2022 Lead and Copper Rule MR 2 SDWIS / WA5357598 / 5000
2011 Coliform (TCR) MR 26 SDWIS / WA5357598 / 3100
2011 Arsenic MR 8 SDWIS / WA5357598 / 1005
2011 Barium MR 8 SDWIS / WA5357598 / 1010
2011 Cadmium MR 8 SDWIS / WA5357598 / 1015
2011 Fluoride MR 8 SDWIS / WA5357598 / 1025
2011 Mercury MR 8 SDWIS / WA5357598 / 1035
2011 Selenium MR 8 SDWIS / WA5357598 / 1045
2011 Chromium MR 8 SDWIS / WA5357598 / 1020
2011 Nickel MR 7 SDWIS / WA5357598 / 1036
2011 Thallium, Total MR 7 SDWIS / WA5357598 / 1085
2011 Antimony, Total MR 7 SDWIS / WA5357598 / 1074

How MULLEN HILL TERRACE MHP Compares

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

Metric MULLEN HILL TERRACE MHP Washington avg Federal benchmark
Total violations 196 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 207 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 MULLEN HILL TERRACE MHP water safe to drink? ▼
MULLEN HILL TERRACE MHP (PWS ID: WA5357598) has 196 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 207 people using Groundwater sources.
How many people does MULLEN HILL TERRACE MHP serve? ▼
MULLEN HILL TERRACE MHP serves 207 people in Spokane, Washington. It is a Private-owned system using Groundwater water sources with 118 service connections.
What type of violations does MULLEN HILL TERRACE MHP have? ▼
MULLEN HILL TERRACE MHP has 196 total violations: 0 health-based violations (MCL exceedances or treatment failures), 190 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MULLEN HILL TERRACE MHP water? ▼
No PFAS testing data is available for MULLEN HILL TERRACE MHP under the EPA's UCMR5 monitoring program.
What water source does MULLEN HILL TERRACE MHP use? ▼
MULLEN HILL TERRACE MHP 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.

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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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