TapSafetyReport
F4/100

BLACKHAWK ESTATES LLC — Water Quality Report 2026

Serving 1,238 people · Illinois

Water Source
Groundwater
County
—
System ID
IL0317765
Violations
36

Contaminant Test Results

EPA Violation History

9

Violations (last 5yr)

1

Unresolved

1

Health-Related

TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 8, 2024 – May 13, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2024 – June 30, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2023 – March 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – March 31, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 30, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2022 – June 30, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2021 – December 31, 2021Enforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About BLACKHAWK ESTATES LLC

Is BLACKHAWK ESTATES LLC water safe to drink?

BLACKHAWK ESTATES LLC water receives a grade of F (4/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 36 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has BLACKHAWK ESTATES LLC detected?

1 contaminants were tested in BLACKHAWK ESTATES LLC's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does BLACKHAWK ESTATES LLC have any EPA violations?

Yes, BLACKHAWK ESTATES LLC has 36 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MCL, MON. 15 are health-based violations.

How many people does BLACKHAWK ESTATES LLC serve?

BLACKHAWK ESTATES LLC serves approximately 1,238 people, Illinois.

What type of water does BLACKHAWK ESTATES LLC provide?

BLACKHAWK ESTATES LLC sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL0317765.

How does BLACKHAWK ESTATES LLC compare to other utilities in Illinois?

BLACKHAWK ESTATES LLC scores 4/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Illinois state page for a full comparison of water systems.