Water Quality in West Richland, WA: 7 Violations — Grade B
Grade B · Score 72/100 · 4 water systems · Updated 2026-05-03
West Richland's water is mostly safe. Minor violations exist but are primarily monitoring-related.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Local water systems serving West Richland, WA carry 7 EPA violations on record in the federal compliance database — documented events spanning categories from maximum contaminant level exceedances to monitoring requirements tracked by the national Safe Drinking Water program.
Water Quality by ZIP Code in West Richland
Water quality varies across West Richland's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 99353 | B | 72 | 7 | 0 | View report → |
Water Quality Overview
West Richland, Washington receives a water quality grade of B with an overall score of 72 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 4 water systems serving West Richland have accumulated 7 EPA violations (all monitoring/reporting type). These violations are tracked across 1 ZIP codes serving approximately 19,153 people.
What Grade B Means
A grade of B indicates good compliance with EPA drinking water standards. While not perfect, West Richland's water systems meet the vast majority of federal requirements. Minor violations may exist but typically relate to monitoring or reporting rather than health-based standards.
Lead Levels
The average 90th percentile lead level across West Richland water systems is 0.0010 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
Radon Risk
West Richland is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving West Richland
West Richland is served by 4 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 19,153 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 6 enforcement actions against water systems serving West Richland. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in West Richland
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in West Richland Water Systems
The following contaminants have been detected or caused violations across West Richland's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Nickel | Inorganic | 0.1 mg/L | 2 | 1 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 2 | 1 | No |
| Lead | Inorganic | 0.015 mg/L | 1 | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | N/A | 1 | 1 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 6 enforcement actions against water systems serving West Richland. Recent actions:
| Date | Action Type |
|---|---|
| 2025-09-02 | State Order Extension |
| 2024-03-05 | State Order Extension |
| 2023-10-03 | State Order Extension |
| 2023-09-29 | State Order Extension |
| 2022-03-11 | State Order Extension |
| 2021-05-01 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-09-02.
West Richland vs. Nearby Washington Cities
How West Richland's water quality compares to similar cities in Washington:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| West Richland | B | 7 | 4 | 19,153 |
| Gig Harbor | A | 0 | 5 | 19,343 |
| Ferndale | B | 5 | 5 | 20,173 |
| Yelm | A | 1 | 5 | 20,229 |
Common Questions About West Richland Water
These are the most common questions residents search for about water quality in West Richland, Washington:
Is West Richland water hard or soft? Water hardness varies by source. West Richland's 4 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink West Richland tap water? West Richland's water receives a grade of B (72/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for West Richland? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
West Richland vs. Washington Average
Understanding how West Richland compares to the broader Washington average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within West Richland.
ZIP Codes in West Richland
West Richland spans 1 ZIP code. The ZIP with the lowest water quality score is 99353. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.
Frequently Asked Questions
Your Water is Safe — Here's How to Keep It That Way
Grade B is excellent news. Here's what proactive homeowners do to maintain water quality:
Annual Water Testing
EPA recommends annual testing even with clean water. Home test kits: $20-$50. Catches changes before they become problems.
Maintenance Filtration
A basic carbon filter removes chlorine taste and catches emerging contaminants like PFAS that aren't yet fully regulated.
Plumbing Check
Even safe city water picks up lead from home pipes. If your home was built before 1986, a one-time pipe inspection is recommended.