Holiday Highway Subd, ID
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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.
Holiday Highway Subd at a glance
Holiday Highway Subd serves about 45 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 Blaine County, Idaho. EPA system ID: ID5070025; phone on file: 208-309-3326. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 20 ppb from 20 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Holiday Highway Subd is 20 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 20 ppb over 15 |
| 2021 | 1 ppb |
| 2018 | 0 (not detected) |
Against other Idaho systems
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. Holiday Highway Subd's reported as 0 (not detected) sits at the 5th percentile in Idaho and the 3rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Blaine County
19 other systems share Blaine County; 14 of them have a higher latest lead result than Holiday Highway Subd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hailey Water And Sewer | 8,000 | 2 ppb |
| Ketchum City Of | 3,555 | 9 ppb |
| Sun Valley Water And Sewer Dist | 3,400 | 4 ppb |
| Bellevue City Of | 2,747 | 0 (not detected) |
| Carey City Of | 993 | 4 ppb |
| Mid Valley Water Company Llc | 450 | 0 (not detected) |
| Hulen Meadows Water Company | 390 | 5 ppb |
| Cold Springs Subd | 300 | 0 (not detected) |
| Heatherlands Subd | 200 | 1 ppb |
| Starweather Estates | 150 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hailey, 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 Holiday Highway Subd 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. Why an old exceedance still matters: over the limit before, under it now.