Jonesboro Water Department, IN
Lead detected, under the action levels
Latest 90th-percentile lead: 5.6 ppb (monitoring period 2025-2025). 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
Jonesboro Water Department serves about 2,034 people through 801 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 Grant County, Indiana. EPA system ID: IN5227010; phone on file: 765-667-9666. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Jonesboro Water Department's lead record
That is up 5.6 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Jonesboro Water Department is 5.6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 5.6 ppb |
| 2021 | 0 (not detected) |
| 2018 | 4.2 ppb |
How Jonesboro Water Department compares
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. Jonesboro Water Department's 5.6 ppb sits at the 91st percentile in Indiana and the 92nd nationally (higher means more lead).
Nearby utilities
7 other systems share Grant County; 1 of them has a higher latest lead result than Jonesboro Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Marion City Water Works | 28,363 | 1.92 ppb |
| Gas City Water Department | 6,000 | 1.26 ppb |
| Upland Water Department | 3,308 | 2.2 ppb |
| Fairmount Water Works | 2,756 | 1.4 ppb |
| Swayzee Water Utility | 975 | 8.46 ppb |
| Van Buren Municipal Utilities | 864 | 0 (not detected) |
| Colonial Crest Llc | 101 | - |
Your move
Test your own tap with a certified lab first-draw sample; Jonesboro, 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 Jonesboro 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.