Grandwood Park Subdivision - Lake Co Pw, IL Water Quality
Is Grandwood Park Subdivision - Lake Co Pw's water safe to drink?
Grandwood Park Subdivision - Lake Co Pw has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 5,751, over 1,917 connections.
How this compares nationally
17 total violations and 6 health-based ones put Grandwood Park Subdivision - Lake Co Pw at the 76th percentile nationally for violation burden, rank 3,141 of 12,903.
How Grandwood Park Subdivision - Lake Co Pw compares within IL
IL's 572 covered systems average 5.1 health-based violations each; Grandwood Park Subdivision - Lake Co Pw carries 6, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for Grandwood Park Subdivision - Lake Co Pw is from 2014-01-01 (health-based: 2005-01-10). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
Grandwood Park Subdivision - Lake Co Pw's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Radionuclides - flagged from: Combined Radium (-226 and -228)
The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.
What this data is and is not
This is what Grandwood Park Subdivision - Lake Co Pw reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 17 logged violations can see. The guide to what this data misses covers that gap.