3d Water Association, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2021-2023). 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.
3d Water Association at a glance
3d Water Association serves about 680 people through 186 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Bonneville County, Idaho. EPA system ID: ID7100201; phone on file: 208-201-9358. Call that number and ask whether your address has a lead, galvanized or unknown service line.
3d Water Association's lead record
Against the period ending 2020 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for 3d Water Association is 2 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1 ppb |
| 2020 | 2 ppb |
| 2019 | 2 ppb |
| 2018 | 2 ppb |
| 2017 | 2 ppb |
| 2017 | 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. 3d Water Association's 1 ppb sits at the 53rd percentile in Idaho and the 53rd nationally (higher means more lead).
Neighbouring systems
32 other systems share Bonneville County; 14 of them have a higher latest lead result than 3d Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Idaho Falls City Of | 69,450 | 3 ppb |
| Falls Water Company Inc | 22,650 | 3 ppb |
| Ammon City Of | 17,338 | 0 (not detected) |
| Iona Water Dept | 2,717 | 1 ppb |
| Comore Loma | 1,626 | 1 ppb |
| Ucon City Of | 1,161 | 0 (not detected) |
| Taylor Mountain Water And Sewer District | 600 | 0 (not detected) |
| J And K Water Corp | 370 | 3 ppb |
| Blackhawk Estates/Iron Rim | 270 | 3 ppb |
| Country Life Estates | 250 | 0 (not detected) |
Next steps for Uconn, ID
Test your own tap with a certified lab first-draw sample; Uconn, 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 3d 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Systems that went over once often dip back under; here is what that means.