Martinsville, IL
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 11.4 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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
About Martinsville
Martinsville serves about 1,200 people through 650 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 Clark County, Illinois. EPA system ID: IL0230150; phone on file: 217-382-4323. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 11.4 ppb from 0 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Martinsville is 11.4 ppb across 6 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 11.4 ppb over 10 |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 6.37 ppb |
| 2016 | 0 (not detected) |
Where this result ranks
Of the 1,744 Illinois systems with a lead result, the median latest reading is 0 ppb; 22 are over 15 ppb right now and 152 have gone over at some point. Martinsville's 11.4 ppb sits at the 97th percentile in Illinois and the 98th nationally (higher means more lead).
Neighbouring systems
5 other systems share Clark County; 0 of them have a higher latest lead result than Martinsville. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Clark-Edgar Rwd | 9,657 | 0 (not detected) |
| Marshall | 3,947 | 0 (not detected) |
| Casey | 3,274 | 1.7 ppb |
| Westfield | 678 | 0 (not detected) |
| Union-York Water District | 600 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Martinsville, IL 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 Martinsville 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. See what changes at 10 ppb in 2027.