B74/100
Granger Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,993 residents · Washington
What's In Granger's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – September 29, 2023Enforcement: Resolving — corrective action underway
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
GRANGER WATER DEPARTMENT
Population Served
3,993
Water Source
Groundwater
System ID
WA5329000
Frequently Asked Questions About Granger Water
Is Granger tap water safe to drink?
Granger, Washington tap water receives a grade of B (74/100), which is considered good. Out of 31 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 Granger's water?
31 contaminants were tested in Granger's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Granger have any water quality violations?
Yes, Granger has 14 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MCL, MR. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Granger?
Granger 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 Granger's tap water come from?
Granger's drinking water is sourced from groundwater and supplied by GRANGER WATER DEPARTMENT. The system serves approximately 3,993 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Granger'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. Granger'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 Granger's water compare to other cities in Washington?
Granger's water quality score of 74/100 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 Granger's water quality?
If you have concerns about Granger'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 (GRANGER WATER DEPARTMENT) 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.