Sunset Hills Domestic Water Association, OR
Lead detected, under the action levels
Latest 90th-percentile lead: 3.84 ppb (monitoring period 2024-2026). 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
Sunset Hills Domestic Water Association serves about 41 people through 17 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Crook County, Oregon. EPA system ID: OR4105258; phone on file: 541-419-4837. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 2.3 ppb from 1.54 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Sunset Hills Domestic Water Association is 8.8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3.84 ppb |
| 2023 | 1.54 ppb |
| 2020 | 8.8 ppb |
| 2017 | 0.72 ppb |
Against other Oregon systems
Of the 909 Oregon systems with a lead result, the median latest reading is 1 ppb; 15 are over 15 ppb right now and 71 have gone over at some point. Sunset Hills Domestic Water Association's 3.84 ppb sits at the 83rd percentile in Oregon and the 86th nationally (higher means more lead).
Nearby utilities
17 other systems share Crook County; 0 of them have a higher latest lead result than Sunset Hills Domestic Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Prineville, City Of | 11,000 | 1.9 ppb |
| Avion Wc - Brasada Ranch | 1,200 | 1 ppb |
| Avion Wc - Red Cloud | 585 | 0 (not detected) |
| Ochoco West Wtr & San Authority | 400 | 3.67 ppb |
| High Desert Estates | 380 | 0 (not detected) |
| Highland Subdivision Wd | 335 | 0 (not detected) |
| Idleway Improvement District | 183 | 0.86 ppb |
| Terrace Mobile Plaza | 152 | 0 (not detected) |
| Barnes Butte Hoa | 148 | 0 (not detected) |
| Prineville Mobile Home Park | 130 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Prineville, OR 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 Sunset Hills Domestic Water Association 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.