Washington Twp Water Authority, IN
Lead detected, under the action levels
Latest 90th-percentile lead: 0.7 ppb (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. 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 Washington Twp Water Authority
Washington Twp Water Authority serves about 3,825 people through 1,530 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 surface water, in Monroe County, Indiana. EPA system ID: IN5253009; phone on file: 812-360-0044. 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 2018 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Washington Twp Water Authority is 1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.7 ppb |
| 2018 | 1 ppb |
| 2018 | 1 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. Washington Twp Water Authority's 0.7 ppb sits at the 39th percentile in Indiana and the 47th nationally (higher means more lead).
Nearby utilities
9 other systems share Monroe County; 4 of them have a higher latest lead result than Washington Twp 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) |
| Southern Monroe Water Authority | 8,877 | 0 (not detected) |
| Van Buren Water, Inc. | 6,670 | 2 ppb |
| B&B Water Project, Inc. | 4,695 | 0 (not detected) |
| 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
Test your own tap with a certified lab first-draw sample; Bloomington, 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 Washington Twp 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.