Preston Eastside Water Co, ID
Exceeded the action level in the past
Latest 90th-percentile lead: 2 ppb (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.
About Preston Eastside Water Co
Preston Eastside Water Co serves about 120 people through 42 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Franklin County, Idaho. EPA system ID: ID6210012; phone on file: 801-540-5552. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 62 ppb from 64 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Preston Eastside Water Co is 64 ppb across 10 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2 ppb |
| 2024 | 64 ppb over 15 |
| 2023 | 5 ppb |
| 2022 | 8 ppb |
| 2021 | 10 ppb |
| 2020 | 4 ppb |
| 2019 | 3 ppb |
| 2018 | 6 ppb |
| 2017 | 5 ppb |
| 2016 | 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. Preston Eastside Water Co's 2 ppb sits at the 64th percentile in Idaho and the 70th nationally (higher means more lead).
Nearby utilities
14 other systems share Franklin County; 3 of them have a higher latest lead result than Preston Eastside Water Co. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Preston City Of | 5,591 | 2 ppb |
| Fairview Water Dist | 1,300 | 3 ppb |
| Franklin City Of | 1,000 | 3 ppb |
| Dayton City Of | 510 | 2 ppb |
| Weston City Of | 490 | 1 ppb |
| Clifton City Of | 413 | 1 ppb |
| Whitney Nashville Water Works | 403 | 0 (not detected) |
| Banida Water And Sewer Dist | 180 | 1 ppb |
| Cub River Acres | 180 | 7 ppb |
| Birch Creek Culinary | 120 | 1 ppb |
Next steps for Preston, ID
Test your own tap with a certified lab first-draw sample; Preston, 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 Preston Eastside Water Co whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2202 ppb (copper action level 1,300 ppb).
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. The lead result guide covers how utilities pick the homes they sample. Why an old exceedance still matters: over the limit before, under it now.