Sun Cove Public Water System, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.9 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.
Who runs the water here
Sun Cove Public Water System serves about 716 people through 419 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Douglas County, Washington. EPA system ID: WA5385124. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2020 (0.7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Sun Cove Public Water System is 0.9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0.9 ppb |
| 2020 | 0.7 ppb |
| 2017 | 0.7 ppb |
Against other Washington systems
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. Sun Cove Public Water System's 0.9 ppb sits at the 46th percentile in Washington and the 49th nationally (higher means more lead).
Other water systems in Douglas County
17 other systems share Douglas County; 7 of them have a higher latest lead result than Sun Cove Public Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| East Wenatchee Water District | 26,519 | 0 (not detected) |
| Rock Island Water Dept City Of | 3,226 | 1 ppb |
| Bridgeport City Of | 2,214 | 5.4 ppb |
| Waterville Town Of | 1,140 | 0 (not detected) |
| Mansfield Water System | 380 | 0 (not detected) |
| Corral Springs Water System | 336 | 2.1 ppb |
| Greater Bar Water District | 330 | 0 (not detected) |
| Crane Ranch | 329 | 0 (not detected) |
| Cro Farms Inc | 297 | 2.8 ppb |
| Desert Canyon Domestic Water System | 292 | 2.9 ppb |
Next steps for Cashmere, WA
Test your own tap with a certified lab first-draw sample; Cashmere, 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 Sun Cove Public Water System 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.