Pembroke Township, IL
Lead detected, under the action levels
Latest 90th-percentile lead: 4.1 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.
Pembroke Township at a glance
Pembroke Township serves about 1,410 people through 302 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: IL0910010; phone on file: 815-944-8871. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is up 1.5 ppb from 2.6 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Pembroke Township is 4.1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4.1 ppb |
| 2022 | 2.6 ppb |
| 2019 | 2.5 ppb |
| 2016 | 1.5 ppb |
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. Pembroke Township's 4.1 ppb sits at the 85th percentile in Illinois and the 88th nationally (higher means more lead).
Neighbouring systems
16 other systems share Kankakee County; 1 of them has a higher latest lead result than Pembroke Township. 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) |
| St Anne | 1,200 | 0 (not detected) |
| Sunny Acres Mhp | 750 | 1.2 ppb |
| Hopkins Park | 579 | 4.5 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 | - |
Your move
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 Pembroke Township 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. Systems that went over once often dip back under; here is what that means.