Toledo Water Supply, IA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Toledo Water Supply at a glance
Toledo Water Supply serves about 2,399 people through 960 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 Tama County, Iowa. EPA system ID: IA8676027; phone on file: 641-484-2160. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2021 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Toledo Water Supply is 1.2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 1 ppb |
| 2018 | 1.2 ppb |
Where this result ranks
Of the 1,066 Iowa systems with a lead result, the median latest reading is 1.4 ppb; 4 are over 15 ppb right now and 36 have gone over at some point. Toledo Water Supply's reported as 0 (not detected) sits at the 27th percentile in Iowa and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
10 other systems share Tama County; 5 of them have a higher latest lead result than Toledo Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Poweshiek Water Association | 13,920 | 0.6 ppb |
| Tama Water Supply | 3,130 | 4.8 ppb |
| Traer Municipal Water Plant | 1,583 | 0 (not detected) |
| Dysart Water Supply | 1,281 | 0 (not detected) |
| Gladbrook Water Supply | 799 | 6 ppb |
| Garwin Water Supply | 481 | 0 (not detected) |
| Chelsea Water Supply | 229 | 2.6 ppb |
| Clutier Water Supply | 213 | 0 (not detected) |
| Montour Water Supply | 203 | 2.2 ppb |
| Elberon Water Supply | 184 | 0 (not detected) |
Your move
Look up your address in Toledo Water Supply'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 Toledo Water Supply 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.