Citizens Water - Whitestown, IN
Lead detected, under the action levels
Latest 90th-percentile lead: 0.33 ppb (monitoring period 2023-2025). 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
Citizens Water - Whitestown serves about 15,695 people through 6,278 service connections, which makes it a large system under EPA's size classes. It is privately owned and draws surface water, in Boone County, Indiana. EPA system ID: IN5206014; phone on file: 317-429-3569. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Citizens Water - Whitestown is 1.6 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.33 ppb |
| 2022 | 1 ppb |
| 2019 | 1.2 ppb |
| 2016 | 1.6 ppb |
How Citizens Water - Whitestown 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. Citizens Water - Whitestown's 0.33 ppb sits at the 35th percentile in Indiana and the 42nd nationally (higher means more lead).
Other water systems in Boone County
6 other systems share Boone County; 3 of them have a higher latest lead result than Citizens Water - Whitestown. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lebanon Utilities | 16,840 | 1.05 ppb |
| Thorntown Utilities | 1,600 | 1.17 ppb |
| Jamestown Municipal Water | 1,000 | 0 (not detected) |
| Advance Water Works | 500 | 0 (not detected) |
| Pine Ridge | 135 | 4.63 ppb |
| Zionsville Mhp Trust | 57 | 0 (not detected) |
Next steps for Indianapolis, IN
Test your own tap with a certified lab first-draw sample; Indianapolis, 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 Citizens Water - Whitestown 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.