Cottonwood Acres 3 & 5, ID
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Cottonwood Acres 3 & 5 at a glance
Cottonwood Acres 3 & 5 serves about 60 people through 44 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Bonneville County, Idaho. EPA system ID: ID7100192; phone on file: 208-390-5827. They can tell you what your service line is made of and whether they pay to replace it.
Cottonwood Acres 3 & 5's lead record
That is down 4 ppb from 4 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Cottonwood Acres 3 & 5 is 4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 4 ppb |
| 2017 | 0 (not detected) |
How Cottonwood Acres 3 & 5 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. Cottonwood Acres 3 & 5's reported as 0 (not detected) sits at the 10th percentile in Idaho and the 5th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
32 other systems share Bonneville County; 21 of them have a higher latest lead result than Cottonwood Acres 3 & 5. 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) |
| 3d Water Association | 680 | 1 ppb |
| 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 |
Next steps for Rigby, ID
Look up your address in Cottonwood Acres 3 & 5'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 Cottonwood Acres 3 & 5 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.