Hopkins Park, IL
Lead detected, under the action levels
Latest 90th-percentile lead: 4.5 ppb (monitoring period 2026-2026). 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.
Hopkins Park at a glance
Hopkins Park serves about 579 people through 103 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 Kankakee County, Illinois. EPA system ID: IL0910040; phone on file: 815-944-8313. 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 4.5 ppb from 0 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Hopkins Park is 12 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4.5 ppb |
| 2025 | 0 (not detected) |
| 2025 | 8.9 ppb |
| 2022 | 12 ppb over 10 |
Against other Illinois systems
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. Hopkins Park's 4.5 ppb sits at the 86th percentile in Illinois and the 89th nationally (higher means more lead).
Neighbouring systems
16 other systems share Kankakee County; 0 of them have a higher latest lead result than Hopkins Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Aqua Illinois-Kankakee | 80,000 | 1.9 ppb |
| Momence | 3,075 | 3.4 ppb |
| Herscher | 1,600 | 0 (not detected) |
| Pembroke Township | 1,410 | 4.1 ppb |
| St Anne | 1,200 | 0 (not detected) |
| Sunny Acres Mhp | 750 | 1.2 ppb |
| Lake Shannon | 500 | 0 (not detected) |
| Aqua Illinois-Sun River Terrace | 498 | 2.4 ppb |
| Buckingham | 300 | 3.3 ppb |
| Il Veterans Home-Manteno | 256 | - |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hopkins Park, 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 Hopkins Park whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1400 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Size matters more than most people expect: small vs large water systems.