Southern Monroe Water Authority, IN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
Who runs the water here
Southern Monroe Water Authority serves about 8,877 people through 3,551 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws surface water, in Monroe County, Indiana. EPA system ID: IN5253007; phone on file: 812-327-6184. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 1.1 ppb from 1.1 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Southern Monroe Water Authority is 1.1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 1.1 ppb |
| 2017 | 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. Southern Monroe Water Authority's reported as 0 (not detected) sits at the 31st percentile in Indiana and the 37th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
9 other systems share Monroe County; 5 of them have a higher latest lead result than Southern Monroe Water Authority. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Bloomington Utilities | 83,000 | 5.1 ppb |
| Ellettsville Water Works | 14,500 | 0 (not detected) |
| Van Buren Water, Inc. | 6,670 | 2 ppb |
| B&B Water Project, Inc. | 4,695 | 0 (not detected) |
| Washington Twp Water Authority | 3,825 | 0.7 ppb |
| East Monroe Water Corporation | 3,648 | 1.51 ppb |
| Rhs Water Corporation | 870 | 0 (not detected) |
| Shady Side Water Corporation | 95 | 2.1 ppb |
| Salt Creek Services, Inc. | 90 | 0 (not detected) |
Your move
Look up your address in Southern Monroe Water Authority'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 Southern Monroe Water Authority 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. A zero today does not rule out a jump later - the rules are tightening in 2027.