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GREEN VALLEY ESTATES WATER ASSN

PWS ID: WA5329597 · Yakima, Washington 98901

GREEN VALLEY ESTATES WATER ASSN serves 53 people in Yakima, Washington using Groundwater water sources. It has 98 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GREEN VALLEY ESTATES WATER ASSN

GREEN VALLEY ESTATES WATER ASSN is a private-owned community water system that delivers drinking water to 53 residents in Yakima, Washington (Yakima County) through 15 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 98 total violations for this system , of which 5 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 79 monitoring and reporting violations are on file. The most recent violation on record dates to 2007.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 52 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. GREEN VALLEY ESTATES WATER ASSN's 98 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
53
Total Violations
98
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
15
County
Yakima
School/Daycare
No
MCL Violations
5
Monitoring Violations
79
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 52 2004
Coliform (TCR) MCL 5 2000
Consumer Confidence Rule Other 5 2000
Nitrate MR 5 2007
Fluoride MR 2 2005
Mercury MR 2 2005
Selenium MR 2 2005
Cadmium MR 2 2005
Barium MR 2 2005
Lead and Copper Rule MR 2 1997
Arsenic MR 2 2005
Chromium MR 2 2005
CYANIDE MR 1 2005
Nickel MR 1 2005
Antimony, Total MR 1 2005
Beryllium, Total MR 1 2005
Thallium, Total MR 1 2005
Gross Alpha, Excl. Radon and U MR 1 1979

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 GREEN VALLEY ESTATES WATER ASSN.

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 WA5329597 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 GREEN VALLEY ESTATES WATER ASSN 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
2007 Nitrate MR 5 SDWIS / WA5329597 / 1040
2005 Fluoride MR 2 SDWIS / WA5329597 / 1025
2005 Mercury MR 2 SDWIS / WA5329597 / 1035
2005 Selenium MR 2 SDWIS / WA5329597 / 1045
2005 Cadmium MR 2 SDWIS / WA5329597 / 1015
2005 Barium MR 2 SDWIS / WA5329597 / 1010
2005 Arsenic MR 2 SDWIS / WA5329597 / 1005
2005 Chromium MR 2 SDWIS / WA5329597 / 1020
2005 CYANIDE MR 1 SDWIS / WA5329597 / 1024
2005 Nickel MR 1 SDWIS / WA5329597 / 1036
2005 Antimony, Total MR 1 SDWIS / WA5329597 / 1074
2005 Beryllium, Total MR 1 SDWIS / WA5329597 / 1075
2005 Thallium, Total MR 1 SDWIS / WA5329597 / 1085
2004 Coliform (TCR) MR 52 SDWIS / WA5329597 / 3100
2000 Coliform (TCR) MCL 5 SDWIS / WA5329597 / 3100

How GREEN VALLEY ESTATES WATER ASSN Compares

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

Metric GREEN VALLEY ESTATES WATER ASSN Washington avg Federal benchmark
Total violations 98 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 53 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 GREEN VALLEY ESTATES WATER ASSN water safe to drink? ▼
GREEN VALLEY ESTATES WATER ASSN (PWS ID: WA5329597) has 98 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 53 people using Groundwater sources.
How many people does GREEN VALLEY ESTATES WATER ASSN serve? ▼
GREEN VALLEY ESTATES WATER ASSN serves 53 people in Yakima, Washington. It is a Private-owned system using Groundwater water sources with 15 service connections.
What type of violations does GREEN VALLEY ESTATES WATER ASSN have? ▼
GREEN VALLEY ESTATES WATER ASSN has 98 total violations: 5 health-based violations (MCL exceedances or treatment failures), 79 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GREEN VALLEY ESTATES WATER ASSN water? ▼
No PFAS testing data is available for GREEN VALLEY ESTATES WATER ASSN under the EPA's UCMR5 monitoring program.
What water source does GREEN VALLEY ESTATES WATER ASSN use? ▼
GREEN VALLEY ESTATES WATER ASSN 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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