Wilderness Ranch Owners Association Inc, ID
Exceeded the action level in the past
Latest 90th-percentile lead: 4 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Wilderness Ranch Owners Association Inc
Wilderness Ranch Owners Association Inc serves about 525 people through 237 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws surface water, in Boise County, Idaho. EPA system ID: ID4080055; phone on file: 208-866-5139. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2023 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Wilderness Ranch Owners Association Inc is 29 ppb across 13 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4 ppb |
| 2023 | 3 ppb |
| 2022 | 1 ppb |
| 2021 | 4 ppb |
| 2020 | 6 ppb |
| 2020 | 7 ppb |
| 2019 | 10 ppb |
| 2019 | 15 ppb over 10 |
| 2018 | 7 ppb |
| 2018 | 7 ppb |
| 2017 | 9 ppb |
| 2017 | 29 ppb over 15 |
| 2016 | 22 ppb over 15 |
Where this result ranks
Of the 763 Idaho systems with a lead result, the median latest reading is 1 ppb; 3 are over 15 ppb right now and 46 have gone over at some point. Wilderness Ranch Owners Association Inc's 4 ppb sits at the 86th percentile in Idaho and the 87th nationally (higher means more lead).
Nearby utilities
19 other systems share Boise County; 2 of them have a higher latest lead result than Wilderness Ranch Owners Association Inc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Horseshoe Bend Water Supply | 750 | 2 ppb |
| Idaho City Water Dept | 531 | 2 ppb |
| Terrace Lakes Water Company | 475 | 4 ppb |
| Mountain View Water And Road Assn | 305 | 2 ppb |
| Castle Mountain Creeks Owners Assn | 250 | 1 ppb |
| Duquette Pines Homeowners Association | 163 | 1 ppb |
| Scriver Woods Homeowners Assn | 160 | 0 (not detected) |
| Mores Creek Rim Ranch Water Dist | 140 | 3 ppb |
| Rivers Point Property Owners Assn | 140 | 3 ppb |
| Valley Hi Estates | 140 | 8 ppb |
Next steps for Boise, ID
Test your own tap with a certified lab first-draw sample; Boise, ID 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 Wilderness Ranch Owners Association Inc 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. Why an old exceedance still matters: over the limit before, under it now.