Hanover Water Department, IN
Lead detected, under the action levels
Latest 90th-percentile lead: 2.73 ppb (monitoring period 2026-2026). 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.
Hanover Water Department at a glance
Hanover Water Department serves about 2,597 people through 1,039 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 Jefferson County, Indiana. EPA system ID: IN5239003; phone on file: 812-866-2131. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2025 (1.91 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hanover Water Department is 6.76 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.73 ppb |
| 2025 | 1.91 ppb |
| 2024 | 6.76 ppb |
| 2021 | 2.89 ppb |
| 2018 | 2.2 ppb |
Against other Indiana systems
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. Hanover Water Department's 2.73 ppb sits at the 77th percentile in Indiana and the 79th nationally (higher means more lead).
Other water systems in Jefferson County
6 other systems share Jefferson County; 1 of them has a higher latest lead result than Hanover Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Madison Water Department | 15,323 | 1.8 ppb |
| Kent Water Company | 6,750 | 1.89 ppb |
| Canaan Utilities | 4,428 | 2.22 ppb |
| Rykers Ridge Water Company | 2,050 | 2.3 ppb |
| Madison State Hospital | 1,375 | 1.94 ppb |
| Hanover College | 1,250 | 4.58 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hanover, 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 Hanover Water Department 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. Systems that went over once often dip back under; here is what that means.