Knox County Water, Inc., IN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Knox County Water, Inc.
Knox County Water, Inc. serves about 3,525 people through 1,410 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Knox County, Indiana. EPA system ID: IN5242018; phone on file: 812-726-5330. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Knox County Water, Inc. is 2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 2 ppb |
How Knox County Water, Inc. 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. Knox County Water, Inc.'s reported as 0 (not detected) sits at the 28th percentile in Indiana and the 33rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Knox County
10 other systems share Knox County; 8 of them have a higher latest lead result than Knox County Water, Inc.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Vincennes Water Department | 18,701 | 4 ppb |
| Bicknell Municipal Utilities | 4,064 | 1.2 ppb |
| Freelandville Water Association | 1,175 | 3 ppb |
| Oaktown Water Works | 832 | 0 (not detected) |
| Monroe City Water Utilities | 813 | 0 (not detected) |
| Edwardsport Water Utility | 488 | 15 ppb |
| Wheatland Water Works | 474 | 2 ppb |
| Bruceville Water Utility | 449 | 1 ppb |
| Sandborn Water Department | 449 | 2 ppb |
| Decker Water Works | 273 | 5 ppb |
What to do in your house
Look up your address in Knox County Water, Inc.'s service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Knox County Water, Inc. 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. Small systems behave differently: why small systems go over more often.