Arcadia Water Department, IN
Lead detected, under the action levels
Latest 90th-percentile lead: 1.13 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
Arcadia Water Department serves about 1,515 people through 666 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 Hamilton County, Indiana. EPA system ID: IN5229001; phone on file: 317-984-3512. They can tell you what your service line is made of and whether they pay to replace it.
Arcadia Water Department's lead record
That is up 1.13 ppb from 0 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Arcadia Water Department is 2.7 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.13 ppb |
| 2024 | 0 (not detected) |
| 2023 | 2.7 ppb |
How Arcadia 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. Arcadia Water Department's 1.13 ppb sits at the 45th percentile in Indiana and the 58th nationally (higher means more lead).
Nearby utilities
13 other systems share Hamilton County; 6 of them have a higher latest lead result than Arcadia Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Carmel Water Department | 99,927 | 2.94 ppb |
| Citizens Water Of Westfield, Llc | 61,493 | 3.09 ppb |
| Indiana American Water - Noblesville | 45,575 | 3 ppb |
| Cicero Water Department | 5,607 | 6.99 ppb |
| Indiana American Water - Sheridan | 4,435 | 2 ppb |
| Atlanta Water Department | 735 | - |
| Carmel Clay Water | 393 | 0 (not detected) |
| Suburban Estates, Llc | 350 | 0 (not detected) |
| Hamilton County Regional Utility | 125 | 0 (not detected) |
| Indiana Academy | 113 | 2.2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Arcadia, 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 Arcadia Water Department whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2230 ppb (copper action level 1,300 ppb).
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.