La Porte City Utilities, IA
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.
Who runs the water here
La Porte City Utilities serves about 2,284 people through 950 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 Black Hawk County, Iowa. EPA system ID: IA0743057; phone on file: 319-239-1227. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
La Porte City Utilities's lead record
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for La Porte City Utilities is 4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1 ppb |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 4 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. La Porte City Utilities's 1 ppb sits at the 43rd percentile in Iowa and the 54th nationally (higher means more lead).
Nearby utilities
9 other systems share Black Hawk County; 6 of them have a higher latest lead result than La Porte City Utilities. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Waterloo Water Works | 69,504 | 1.8 ppb |
| Cedar Falls Municipal Water Utilities | 40,713 | 1.4 ppb |
| Evansdale Water Works | 4,561 | 1.2 ppb |
| Hudson Water Supply | 2,546 | 3.21 ppb |
| Elk Run Heights Water Supply | 1,069 | 0 (not detected) |
| Dunkerton Muni Water Supply | 842 | 1.2 ppb |
| Gilbertville Water Works | 796 | 0 (not detected) |
| Cedar Falls Mobile Home Village | 388 | 1.24 ppb |
| Lenwood Utilities | 238 | 0 (not detected) |
Next steps for Laporte City, IA
Test your own tap with a certified lab first-draw sample; Laporte City, IA 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 La Porte City Utilities 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.