Holiday Shores Sd, IL
Exceeded the action level in the past
Latest 90th-percentile lead: 3.7 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Holiday Shores Sd serves about 3,025 people through 1,210 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 surface water, in Madison County, Illinois. EPA system ID: IL1195110; phone on file: 618-656-4933. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Holiday Shores Sd's lead record
Against the period ending 2025 (3.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Holiday Shores Sd is 22 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.7 ppb |
| 2025 | 3.1 ppb |
| 2024 | 15 ppb over 10 |
| 2024 | 3 ppb |
| 2023 | 5.2 ppb |
| 2023 | 10 ppb |
| 2022 | 22 ppb over 15 |
| 2019 | 5.4 ppb |
| 2016 | 15 ppb over 10 |
How Holiday Shores Sd compares
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. Holiday Shores Sd's 3.7 ppb sits at the 83rd percentile in Illinois and the 86th nationally (higher means more lead).
Other water systems in Madison County
35 other systems share Madison County; 2 of them have a higher latest lead result than Holiday Shores Sd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Il American-Alton | 46,127 | 3 ppb |
| Il American-Granite City | 33,572 | 6 ppb |
| Collinsville | 30,616 | 0 (not detected) |
| Edwardsville | 26,808 | 0 (not detected) |
| Troy | 16,962 | 0 (not detected) |
| Bethalto | 15,210 | 1.2 ppb |
| Glen Carbon | 12,618 | 0 (not detected) |
| Highland | 10,674 | 0 (not detected) |
| Wood River | 10,464 | 0 (not detected) |
| Maryville | 10,150 | 2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Edwardsville, 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 Holiday Shores Sd 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. Why an old exceedance still matters: over the limit before, under it now.