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WESTERN RANCHETTES INC.

PWS ID: WA5395123 · Black Diamond, Washington 98010

WESTERN RANCHETTES INC. serves 250 people in Black Diamond, Washington using Groundwater water sources. It has 82 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WESTERN RANCHETTES INC.

WESTERN RANCHETTES INC. is a private-owned community water system that delivers drinking water to 250 residents in Black Diamond, Washington (Pierce County) through 106 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 82 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 78 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 10 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. WESTERN RANCHETTES INC.'s 82 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
250
Total Violations
82
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
106
County
Pierce
School/Daycare
No
MCL Violations
0
Monitoring Violations
78
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 10 2006
Pentachlorophenol MR 4 2008
Consumer Confidence Rule Other 4 2016
Coliform (TCR) MR 4 2000
Arsenic MR 3 2008
BHC-GAMMA MR 2 2008
Di(2-ethylhexyl) adipate MR 2 2008
Simazine MR 2 2008
Hexachlorocyclopentadiene MR 2 2008
Atrazine MR 2 2008
LASSO MR 2 2008
Heptachlor MR 2 2008
Heptachlor epoxide MR 2 2008
HEXACHLOROBENZENE MR 2 2008
Chlordane MR 2 2008
Endrin MR 2 2008
Toxaphene MR 2 2008
Di(2-ethylhexyl) phthalate MR 2 2008
Benzo(a)pyrene MR 2 2008
Dalapon MR 2 2008
2,4,5-TP MR 2 2008
Chromium MR 2 2008
Fluoride MR 2 2008
Mercury MR 2 2008
Picloram MR 2 2008
Dinoseb MR 2 2008
Cadmium MR 2 2008
Selenium MR 2 2008
Barium MR 2 2008
Methoxychlor MR 2 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 WESTERN RANCHETTES 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 WA5395123 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 WESTERN RANCHETTES 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
2016 Consumer Confidence Rule Other 4 SDWIS / WA5395123 / 7000
2008 Pentachlorophenol MR 4 SDWIS / WA5395123 / 2326
2008 Arsenic MR 3 SDWIS / WA5395123 / 1005
2008 BHC-GAMMA MR 2 SDWIS / WA5395123 / 2010
2008 Di(2-ethylhexyl) adipate MR 2 SDWIS / WA5395123 / 2035
2008 Simazine MR 2 SDWIS / WA5395123 / 2037
2008 Hexachlorocyclopentadiene MR 2 SDWIS / WA5395123 / 2042
2008 Atrazine MR 2 SDWIS / WA5395123 / 2050
2008 LASSO MR 2 SDWIS / WA5395123 / 2051
2008 Heptachlor MR 2 SDWIS / WA5395123 / 2065
2008 Heptachlor epoxide MR 2 SDWIS / WA5395123 / 2067
2008 HEXACHLOROBENZENE MR 2 SDWIS / WA5395123 / 2274
2008 Chlordane MR 2 SDWIS / WA5395123 / 2959
2008 Endrin MR 2 SDWIS / WA5395123 / 2005
2008 Toxaphene MR 2 SDWIS / WA5395123 / 2020

How WESTERN RANCHETTES INC. Compares

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

Metric WESTERN RANCHETTES INC. Washington avg Federal benchmark
Total violations 82 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 250 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 WESTERN RANCHETTES INC. water safe to drink? ▼
WESTERN RANCHETTES INC. (PWS ID: WA5395123) has 82 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does WESTERN RANCHETTES INC. serve? ▼
WESTERN RANCHETTES INC. serves 250 people in Black Diamond, Washington. It is a Private-owned system using Groundwater water sources with 106 service connections.
What type of violations does WESTERN RANCHETTES INC. have? ▼
WESTERN RANCHETTES INC. has 82 total violations: 0 health-based violations (MCL exceedances or treatment failures), 78 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WESTERN RANCHETTES INC. water? ▼
No PFAS testing data is available for WESTERN RANCHETTES INC. under the EPA's UCMR5 monitoring program.
What water source does WESTERN RANCHETTES INC. use? ▼
WESTERN RANCHETTES 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.

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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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