Aqua Illinois-timber Ridge
EPA ID: IL1970410 · 2,322 people served · 1 ZIP code
Aqua Illinois-timber Ridge earns a clean bill from EPA monitoring — no violations in five years across a service area of 2,322 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Aqua Illinois-timber Ridge Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Aqua Illinois-timber Ridge serves a community with a median household income of $93,941 and an estimated 20,606 residents across its service area. Approximately 45% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 46% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Aqua Illinois-timber Ridge's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Cook County, Illinois rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Illinois
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Aqua Illinois-timber Ridge (EPA ID: IL1970410) is a community water system in Illinois that serves approximately 2,322 people from groundwater sources.
This system serves ZIP code 60443 in Matteson.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IL or modeled from parcel and building-footprint data.
- 60443 — Matteson
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Aqua Illinois-timber Ridge (IL1970410) on EPA.gov.
Frequently Asked Questions
Is Aqua Illinois-timber Ridge water safe to drink?
Based on EPA records, Aqua Illinois-timber Ridge has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Aqua Illinois-timber Ridge serve?
Aqua Illinois-timber Ridge serves approximately 2,322 people across 1 ZIP code in Illinois.
Where does Aqua Illinois-timber Ridge get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.