What's in POLO's water?
POLO has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,355 people get their water from it, across 1,090 connections.
POLO's record against the rest of the country
Out of 12,903 systems in this dataset, POLO ranks 6,356th by violation burden (51th percentile) - 15 violations total, 2 health-baseds.
Against the IL average
POLO's 2 health-based violations sit within the IL average of 5.0, across 560 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
POLO's most recent violation on record is dated 2023-01-04, with the most recent health-based one dated 2012-01-07. Last reported to EPA: 05/27/2026.
The concern categories on record
POLO'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Radionuclides - flagged from: Combined Radium (-226 and -228)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What POLO's record does not cover
Everything on this page is POLO's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and POLO's customers' taps is household plumbing, invisible to a system-level record ranked 6,356th of 12,903 by violation count. The guide to what this data misses covers that gap.