Cuii - Water Service Co., IN
Lead detected, under the action levels
Latest 90th-percentile lead: 4.5 ppb (monitoring period 2024-2026). 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.
About Cuii - Water Service Co.
Cuii - Water Service Co. serves about 654 people through 322 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Jasper County, Indiana. EPA system ID: IN5237002; phone on file: 219-252-4877. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2024 (4.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cuii - Water Service Co. is 4.5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4.5 ppb |
| 2024 | 4.5 ppb |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
Where this result ranks
Of the 687 Indiana systems with a lead result, the median latest reading is 1.31 ppb; 6 are over 15 ppb right now and 36 have gone over at some point. Cuii - Water Service Co.'s 4.5 ppb sits at the 87th percentile in Indiana and the 89th nationally (higher means more lead).
Neighbouring systems
4 other systems share Jasper County; 1 of them has a higher latest lead result than Cuii - Water Service Co.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Rensselaer Water Department | 6,200 | 12.1 ppb |
| Northwest Jasper Regional Water District | 4,054 | 0 (not detected) |
| Remington Water Works | 1,182 | 1.95 ppb |
| Lakeside Management | 63 | 0.36 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Crown Point, IN 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 Cuii - Water Service Co. 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. The action level is dropping - the 10 ppb rule from 2027.