TapSafetyReport
A87/100

POPLAR GROVE SOUTH — Water Quality Report 2026

Serving 1,877 people · Illinois

Water Source
Groundwater
County
—
System ID
IL0070300
Violations
10

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.005 mg/L0.015 mg/LAbove Goal

EPA Violation History

5

Violations (last 5yr)

4

Unresolved

0

Health-Related

TIER 3Unresolved

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, 2025 – December 31, 2025Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Unresolved

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, 2025 – December 31, 2025Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – July 26, 2024Enforcement: Resolving — corrective action underway
TIER 3Unresolved

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, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

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, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

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 POPLAR GROVE SOUTH

Is POPLAR GROVE SOUTH water safe to drink?

POPLAR GROVE SOUTH water receives a grade of A (87/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has POPLAR GROVE SOUTH detected?

1 contaminants were tested in POPLAR GROVE SOUTH's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does POPLAR GROVE SOUTH have any EPA violations?

Yes, POPLAR GROVE SOUTH has 10 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MON.

How many people does POPLAR GROVE SOUTH serve?

POPLAR GROVE SOUTH serves approximately 1,877 people, Illinois. The system provides water to 1 community: Poplar Grove.

What type of water does POPLAR GROVE SOUTH provide?

POPLAR GROVE SOUTH sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL0070300.

How does POPLAR GROVE SOUTH compare to other utilities in Illinois?

POPLAR GROVE SOUTH scores 87/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Illinois state page for a full comparison of water systems.

Cities Served

Poplar Grove