Rogerson Water Dist, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 4 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.
Who runs the water here
Rogerson Water Dist serves about 75 people through 36 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Twin Falls County, Idaho. EPA system ID: ID5420049; phone on file: 208-655-4406. They can tell you what your service line is made of and whether they pay to replace it.
Rogerson Water Dist's lead record
That is up 3 ppb from 1 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Rogerson Water Dist is 4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 4 ppb |
| 2021 | 1 ppb |
| 2018 | 0 (not detected) |
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. Rogerson Water Dist's 4 ppb sits at the 84th percentile in Idaho and the 87th nationally (higher means more lead).
Nearby utilities
12 other systems share Twin Falls County; 0 of them have a higher latest lead result than Rogerson Water Dist. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Twin Falls City Of | 56,121 | 0 (not detected) |
| Kimberly City Of | 5,359 | 0 (not detected) |
| Buhl City Of | 4,518 | 0 (not detected) |
| Filer Water Works | 2,858 | 2.77 ppb |
| Hansen City Of | 1,200 | 0 (not detected) |
| Castleford City Of | 275 | 0 (not detected) |
| Kanaka Rapids Ranch Water System Inc | 240 | 0 (not detected) |
| Hollister City Of | 220 | 1 ppb |
| Rock Ledge Estates | 150 | 0 (not detected) |
| Meander Point Subd | 140 | 0 (not detected) |
Next steps for Rogerson, ID
Test your own tap with a certified lab first-draw sample; Rogerson, 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 Rogerson Water Dist 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. Size matters more than most people expect: small vs large water systems.