West Prairie Village, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.7 ppb (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
West Prairie Village serves about 375 people through 137 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Spokane County, Washington. EPA system ID: WA5310614. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 1.4 ppb from 2.1 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for West Prairie Village is 2.1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.7 ppb |
| 2021 | 2.1 ppb |
| 2018 | 1 ppb |
Where this result ranks
Of the 2,218 Washington systems with a lead result, the median latest reading is 1 ppb; 18 are over 15 ppb right now and 62 have gone over at some point. West Prairie Village's 0.7 ppb sits at the 43rd percentile in Washington and the 46th nationally (higher means more lead).
Neighbouring systems
86 other systems share Spokane County; 45 of them have a higher latest lead result than West Prairie Village. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Spokane City Of | 346,138 | 2 ppb |
| Whitworth Water District 2 | 26,883 | 1.3 ppb |
| Vera Water & Power | 24,692 | 20.8 ppb |
| Consolidated Irrig Dist 19 System 2 | 21,220 | 1.3 ppb |
| Spo Co Water Dist 3 Sys 1 | 19,035 | 1.6 ppb |
| Modern Electric Water Co | 18,487 | 0 (not detected) |
| Eastern Washington University | 17,108 | 6.5 ppb |
| Cheney City Of | 16,954 | 1.3 ppb |
| Liberty Lake Sewer & Water District | 14,500 | 1.5 ppb |
| Fairchild Air Force Base | 9,544 | 4.2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Spokane, WA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask West Prairie Village whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.