Rainier Tracts Water Assn, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2021-2023). 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.
About Rainier Tracts Water Assn
Rainier Tracts Water Assn serves about 61 people through 20 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Adams County, Washington. EPA system ID: WA5370910. Ask the utility on your bill for your address in their service line inventory.
Rainier Tracts Water Assn's lead record
That is down 3 ppb from 4 ppb in the period ending 2016. The highest 90th-percentile result EPA holds for Rainier Tracts Water Assn is 4 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1 ppb |
| 2016 | 4 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. Rainier Tracts Water Assn's 1 ppb sits at the 47th percentile in Washington and the 51st nationally (higher means more lead).
Nearby utilities
30 other systems share Adams County; 2 of them have a higher latest lead result than Rainier Tracts Water Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Othello Water Department | 8,755 | 0 (not detected) |
| Ritzville Water Department | 1,725 | 0 (not detected) |
| Lind Town Of | 903 | 0 (not detected) |
| Adams County Water Dist #1 | 870 | 0 (not detected) |
| Othello Manor Llc | 400 | 0 (not detected) |
| Golden Plains Mhp #1 | 360 | 0 (not detected) |
| Washtucna Water Department | 250 | 0 (not detected) |
| Summerset West Water Association | 240 | 0 (not detected) |
| Saddle Mountain Water Assoc. | 219 | 2.8 ppb |
| Othello Country Club Water Assn | 208 | 0 (not detected) |
Next steps for Moses Lake, WA
Test your own tap with a certified lab first-draw sample; Moses Lake, 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 Rainier Tracts Water Assn 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Systems that went over once often dip back under; here is what that means.