CITY REPORT IL

Carlock, IL: 1 Violation — 66/100 (2026)

1 ZIP code · 3 water systems · Updated 2026-06-03

Within Carlock, water safety data for IL reveals moderate quality — federal standards are generally met, but documented exceptions exist in specific service areas.

How Carlock Compares

Carlock66/100
Illinois avg61/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
C · 66
Avg Safety Score
Zone 1
Radon Risk (High)
$222K
Median Home Value
$1,200
Est. Remediation (0.5% of home value)

What You Should Know About Carlock Water

  • Your city's water systems recorded 1 violation in the past 5 years.
  • Average lead level: 0.001 mg/L.
  • Homes built before 1986: 57% — older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 11.4.

Who Supplies Your Water in Carlock

Residential addresses in Carlock, IL are served by 3 primary water providers out of 3 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.

Goodfield
Serves ~936 people · 1 violation
66
/100
Carlock
Serves ~562 people · 1 violation
66
/100
Congerville
Serves ~497 people · 1 violation
66
/100

Overview

We track water quality and home safety data for 1 ZIP code in Carlock, Illinois, covering 3 community water systems serving approximately 1,495 people.

1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.

Home Safety Score

Average Home Safety Score for Carlock: C (66/100)

The score combines three factors:

Factor What It Measures
Water Quality EPA violations and compliance history
Lead Levels 90th percentile lead concentration vs EPA action level
Radon Risk EPA radon zone classification

Water Sources

Carlock water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
61725 C 1 0 Goodfield

All ZIP Codes in Carlock

  • 61725 [C] — 1 violation

Data Sources

Updated daily.

Health Outcomes in Carlock

10.3%
Asthma (US: 9.8%)
9.5%
Diabetes (US: 10.4%)
16.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.3% ↑
Diabetes 9.5% ↓
Mental Health 16.7% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Carlock Water

Surface Water Treatment Rule 2 violations
Treatment Technique
Pathogens may not be adequately removed

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Carlock

1989
Median Build Year
57%
Built Before 1986
34%
Built Before 1970
Copper
Likely Pipe Material

With 57% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Viewed through the lens of construction era, Carlock is predominantly an older city — a median build year of 1989 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.

1989
Median Year Built
57%
Pre-1986 (Lead Paint Risk)
34%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (34%) 1970–1986 (23%) Post-1986 (43%)

Over half of homes in Carlock were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Carlock Homeowners

Property equity in Carlock runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.

Median Home Value
$221,600
Est. Remediation
$1,200
Remediation as % of home value 0.5%

Remediation costs in Carlock are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 20% above the Illinois average.

Lead Exposure Risk for Children in Carlock

57%
Homes Built Before 1986
0.001
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Practically, the structural drivers in Carlock — 57% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

What You Can Do in Carlock

  1. Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Carlock's water.
  3. Check your home's plumbing. With 57% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

Is the water safe to drink in Carlock, IL?
Carlock has an average water safety score of 66/100 (Grade C). 1 EPA violation has been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Carlock have?
Carlock water systems have a total of 1 EPA violation. Violations are tracked across 1 ZIP code.
Does Carlock water have lead?
The average 90th-percentile lead level in Carlock is 0.001 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home — testing is recommended especially in older properties.
How does Carlock compare to Illinois average?
Carlock has an average water safety score of 66/100, which is above the Illinois state average of 61/100.
How many water systems serve Carlock?
Carlock is served by 3 public water systems across 1 ZIP code, serving approximately 1,495 people.
How much does it cost to fix water issues in Carlock?
Estimated remediation costs in Carlock average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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