Reinbeck Water Supply, IA
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 14.8 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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Reinbeck Water Supply serves about 1,662 people through 849 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 Grundy County, Iowa. EPA system ID: IA3870073; phone on file: 319-415-3491. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 9.2 ppb from 5.6 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Reinbeck Water Supply is 14.8 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 14.8 ppb over 10 |
| 2021 | 5.6 ppb |
| 2018 | 7.5 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. Reinbeck Water Supply's 14.8 ppb sits at the 100th percentile in Iowa and the 99th nationally (higher means more lead).
Other water systems in Grundy County
7 other systems share Grundy County; 0 of them have a higher latest lead result than Reinbeck Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Grundy Center Water Supply | 2,796 | 1.8 ppb |
| Dike Water Supply | 1,306 | 1.09 ppb |
| Conrad Water Supply | 1,098 | 4.47 ppb |
| Wellsburg Water Supply | 721 | 0.97 ppb |
| Holland Water Supply | 270 | 1.7 ppb |
| Stout Water Supply | 191 | 4 ppb |
| Beaman Water Supply | 161 | 0 (not detected) |
Next steps for Gladbrook, IA
Test your own tap with a certified lab first-draw sample; Gladbrook, 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 Reinbeck 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. What a 90th-percentile result does and does not tell you: how to read a lead result. See what changes at 10 ppb in 2027.