North Tazewell Pwd, IL
Lead detected, under the action levels
Latest 90th-percentile lead: 5.1 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.
Who runs the water here
North Tazewell Pwd serves about 7,625 people through 3,050 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Tazewell County, Illinois. EPA system ID: IL1795780; phone on file: 309-699-1165. They can tell you what your service line is made of and whether they pay to replace it.
North Tazewell Pwd's lead record
That is up 3.3 ppb from 1.8 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for North Tazewell Pwd is 5.9 ppb across 14 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 5.1 ppb |
| 2025 | 1.8 ppb |
| 2025 | 4.2 ppb |
| 2025 | 4 ppb |
| 2024 | 3.1 ppb |
| 2024 | 4.5 ppb |
| 2023 | 5 ppb |
| 2023 | 2.3 ppb |
| 2022 | 1.6 ppb |
| 2022 | 4.5 ppb |
| 2021 | 2.8 ppb |
| 2021 | 5.9 ppb |
| 2020 | 2.7 ppb |
| 2017 | 3 ppb |
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. North Tazewell Pwd's 5.1 ppb sits at the 88th percentile in Illinois and the 91st nationally (higher means more lead).
Neighbouring systems
28 other systems share Tazewell County; 4 of them have a higher latest lead result than North Tazewell Pwd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Il American-Pekin | 31,731 | 1 ppb |
| East Peoria | 22,484 | 7 ppb |
| Morton | 17,117 | 0 (not detected) |
| Washington | 14,793 | 0 (not detected) |
| Creve Coeur | 4,934 | 2.1 ppb |
| Mackinaw | 3,399 | 0 (not detected) |
| Marquette Heights | 2,974 | 1.02 ppb |
| Groveland Township Water District | 2,185 | 5.2 ppb |
| Tremont | 2,114 | 1.2 ppb |
| Delavan | 1,743 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; East Peoria, 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 North Tazewell Pwd whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1420 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.