Oronoco Estates Mhc, IL

Lead detected, under the action levels

Latest 90th-percentile lead: 5 ppb (monitoring period 2021-2023). 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.

About Oronoco Estates Mhc

Oronoco Estates Mhc serves about 505 people through 218 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Olmsted County, Illinois. EPA system ID: MN1550008; phone on file: 5073674957. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.

Lead results over time

The highest 90th-percentile result EPA holds for Oronoco Estates Mhc is 5 ppb across 1 monitoring period, none of them over 15 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. Oronoco Estates Mhc's 5 ppb sits at the 88th percentile in Illinois and the 91st nationally (higher means more lead).

Next steps for Chicago, IL

Test your own tap with a certified lab first-draw sample; Chicago, 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 Oronoco Estates Mhc 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.