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Community Water System · PWS WA5328970

Grandview City Of

Grandview, Washington 98930 - drinking water served from groundwater sources to 11,010 people, tracked in EPA SDWIS and UCMR5.

11,010
People served
346
EPA violations
4
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 346 drinking-water violations at Grandview City Of, 1% of them health-based - above the Washington per-system average.

346
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
11,010
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Grandview City Of

Grandview City Of is a local-owned community water system that delivers drinking water to 11,010 residents in Grandview, Washington (Yakima County) through 3,334 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 346 total violations for this system , of which 4 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 341 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Diquat, recorded in 38 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%).

Grandview City Of's 346 violations sit above the Washington average.

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
11,010
Total Violations
346
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,334
County
Yakima
School/Daycare
No
MCL Violations
4
Monitoring Violations
341
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Diquat MR 38 2008
1,2,4-Trichlorobenzene MR 14 2017
DICHLOROMETHANE MR 14 2017
o-Dichlorobenzene MR 14 2017
1,1-Dichloroethylene MR 14 2017
1,2-Dichloroethane MR 14 2017
1,1,1-Trichloroethane MR 14 2017
Carbon tetrachloride MR 14 2017
1,2-Dichloropropane MR 14 2017
Benzene MR 14 2017
Ethylbenzene MR 14 2017
cis-1,2-Dichloroethylene MR 14 2017
p-Dichlorobenzene MR 14 2017
Vinyl chloride MR 14 2017
Trichloroethylene MR 14 2017
1,1,2-Trichloroethane MR 14 2017
Tetrachloroethylene MR 14 2017
CHLOROBENZENE MR 14 2017
Toluene MR 14 2017
Styrene MR 14 2017
trans-1,2-Dichloroethylene MR 14 2017
Nitrate MR 9 2006
Coliform (TCR) MCL 3 2000
TTHM MR 2 2024
Total Haloacetic Acids (HAA5) MR 2 2024
Lead and Copper Rule MR 2 2021
Barium MR 1 1979
Selenium MR 1 1979
Mercury MR 1 1979
Chromium MR 1 1979

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 522 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/16/2025 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFOA 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
PFBS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/16/2025 <2.00 ppt 2.00 ppt Not Detected
8:2 FTS 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 7/16/2025 <2.00 ppt 2.00 ppt Not Detected
ADONA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeS 6/25/2025 <4.00 ppt 4.00 ppt Not Detected
NFDHA 6/25/2025 <20.00 ppt 20.00 ppt Not Detected
PFEESA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/25/2025 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 6/25/2025 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 6/25/2025 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 6/25/2025 <5.00 ppt 5.00 ppt Not Detected
ADONA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 6/25/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/25/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFOS 6/25/2025 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/25/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 6/25/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/25/2025 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 6/25/2025 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 6/25/2025 <5.00 ppt 5.00 ppt Not Detected

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 Grandview City Of.

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 WA5328970 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 Grandview City Of 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
2024 TTHM MR 2 SDWIS / WA5328970 / 2950
2024 Total Haloacetic Acids (HAA5) MR 2 SDWIS / WA5328970 / 2456
2021 Lead and Copper Rule MR 2 SDWIS / WA5328970 / 5000
2020 Nitrate MCL 1 SDWIS / WA5328970 / 1040
2017 1,2,4-Trichlorobenzene MR 14 SDWIS / WA5328970 / 2378
2017 DICHLOROMETHANE MR 14 SDWIS / WA5328970 / 2964
2017 o-Dichlorobenzene MR 14 SDWIS / WA5328970 / 2968
2017 1,1-Dichloroethylene MR 14 SDWIS / WA5328970 / 2977
2017 1,2-Dichloroethane MR 14 SDWIS / WA5328970 / 2980
2017 1,1,1-Trichloroethane MR 14 SDWIS / WA5328970 / 2981
2017 Carbon tetrachloride MR 14 SDWIS / WA5328970 / 2982
2017 1,2-Dichloropropane MR 14 SDWIS / WA5328970 / 2983
2017 Benzene MR 14 SDWIS / WA5328970 / 2990
2017 Ethylbenzene MR 14 SDWIS / WA5328970 / 2992
2017 cis-1,2-Dichloroethylene MR 14 SDWIS / WA5328970 / 2380

How Grandview City Of Compares

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

Metric Grandview City Of Washington avg Federal benchmark
Total violations 346 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 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 11,010 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Grandview City Of water safe to drink?
Grandview City Of (PWS ID: WA5328970) has 346 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 11,010 people using Groundwater sources.
How many people does Grandview City Of serve?
Grandview City Of serves 11,010 people in Grandview, Washington. It is a Local-owned system using Groundwater water sources with 3,334 service connections.
What type of violations does Grandview City Of have?
Grandview City Of has 346 total violations: 4 health-based violations (MCL exceedances or treatment failures), 341 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Grandview City Of water?
No. Grandview City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Grandview City Of use?
Grandview City Of 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.