Deary City Of, ID
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2028). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Deary City Of at a glance
Deary City Of serves about 529 people through 296 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 groundwater, in Latah County, Idaho. EPA system ID: ID2290008; phone on file: 208-877-1582. They can tell you what your service line is made of and whether they pay to replace it.
Deary City Of's lead record
That is down 2 ppb from 2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Deary City Of is 13 ppb across 11 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0 (not detected) |
| 2025 | 2 ppb |
| 2024 | 0 (not detected) |
| 2023 | 4 ppb |
| 2022 | 2 ppb |
| 2021 | 12 ppb over 10 |
| 2020 | 9 ppb |
| 2019 | 0 (not detected) |
| 2018 | 9 ppb |
| 2017 | 2 ppb |
| 2016 | 13 ppb over 10 |
How Deary City Of compares
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. Deary City Of's reported as 0 (not detected) sits at the 30th percentile in Idaho and the 23rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
15 other systems share Latah County; 12 of them have a higher latest lead result than Deary 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 |
| Troy City Of | 850 | 5 ppb |
| Potlatch City Of | 812 | 0 (not detected) |
| Juliaetta City Of | 624 | 9.9 ppb |
| 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 |
Next steps for Deary, ID
Look up your address in Deary City Of's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Deary 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. What a 90th-percentile result does and does not tell you: how to read a lead result. A zero today does not rule out a jump later - the rules are tightening in 2027.