Troy City Of, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 5 ppb (monitoring period 2022-2024). 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 Troy City Of
Troy City Of serves about 850 people through 411 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Latah County, Idaho. EPA system ID: ID2290041; phone on file: 208-596-5774. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Troy City Of's lead record
That is up 3 ppb from 2 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Troy City Of is 5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 5 ppb |
| 2021 | 2 ppb |
| 2018 | 2 ppb |
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. Troy City Of's 5 ppb sits at the 91st percentile in Idaho and the 91st nationally (higher means more lead).
Other water systems in Latah County
15 other systems share Latah County; 4 of them have a higher latest lead result than Troy City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Moscow Water Dept | 26,000 | 4 ppb |
| University Of Idaho | 8,589 | 5 ppb |
| Genesee City Of | 1,044 | 2.94 ppb |
| Potlatch City Of | 812 | 0 (not detected) |
| Juliaetta City Of | 624 | 9.9 ppb |
| Deary City Of | 529 | 0 (not detected) |
| Kendrick City Of | 313 | 1 ppb |
| North Tomer Butte W&S District | 259 | 1.21 ppb |
| Bovill Water Dept | 256 | 5.01 ppb |
| Onaway Water And Sewer Assn | 200 | 2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Troy, 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 Troy City Of 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.