B71/100
West Richland Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 18,280 residents · Washington
What's In West Richland's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2021.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
WEST RICHLAND CITY OF
Population Served
18,280
Water Source
Purchased Surface Water
System ID
WA5394900
Frequently Asked Questions About West Richland Water
Is West Richland tap water safe to drink?
West Richland, Washington tap water receives a grade of B (71/100), which is considered good. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in West Richland's water?
69 contaminants were tested in West Richland's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does West Richland have any water quality violations?
Yes, West Richland has 25 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, Other, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in West Richland?
West Richland water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does West Richland's tap water come from?
West Richland's drinking water is sourced from purchased surface water and supplied by WEST RICHLAND CITY OF. The system serves approximately 18,280 people. Surface water sources include rivers, lakes, and reservoirs.
How often is West Richland's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. West Richland's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does West Richland's water compare to other cities in Washington?
West Richland's water quality score of 71/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Washington state page to see how all cities in the state compare.
What should I do if I'm concerned about West Richland's water quality?
If you have concerns about West Richland's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (WEST RICHLAND CITY OF) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.