CITY REPORT IL

Sandwich, IL: 8 Violations - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
Zone 1
Radon Risk (High)
$240K
Median Home Value
$2,700
Est. Remediation (1.1% of home value)

What You Should Know About Sandwich Water

  • Your city's water systems recorded 8 violations in the past 5 years.
  • Average lead level: 0.0023 mg/L.
  • Homes built before 1986: 55% - older plumbing may contain lead solder.
  • Estimated remediation: $2,700 per household.
  • CDC health risk index: 11.8.

Who Supplies Your Water in Sandwich

Water supply in Sandwich, IL follows a divided structure: 3 utilities account for the largest share of residential service out of 3 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.

Overview

We track home safety data for 1 ZIP code in Sandwich, Illinois (population ~11,233), covering 3 community water systems serving approximately 24,506 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Sandwich water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0023 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status 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
Consumer Confidence Report Rule Reporting 4 1
Revised Total Coliform Rule Microbiological 4 1
Contaminant 2931 Other 2 1
Contaminant 2946 Other 2 1
Stage 1 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60548 8 0 Sandwich

All ZIP Codes in Sandwich

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Sandwich

10.4%
Asthma (US: 9.8%)
10.3%
Diabetes (US: 10.4%)
18.3%
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 10.4% ↑
Diabetes 10.3% ↓
Mental Health 18.3% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Sandwich Water

Consumer Confidence Report Rule 4 violations
Reporting
Revised Total Coliform Rule 4 violations
Microbiological
Indicates possible bacterial contamination
Contaminant 2931 2 violations
Other

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

Housing & Infrastructure in Sandwich

1987
Median Build Year
55%
Built Before 1986
23%
Built Before 1970
Copper
Likely Pipe Material

With 55% 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

The lead that enters tap water in older homes often comes not from the municipal supply but from the home's own plumbing - from solder used in copper joints before the 1986 federal ban, or from lead pipes installed before 1970. In Sandwich, where the median build year is 1987, these older materials are widespread. More than half the residential stock predates the 1986 solder ban, and a significant fraction predates 1970 as well. For residents in those homes, the city-wide water quality picture is a less relevant frame than the specific materials inside their own walls and under their own street.

1987
Median Year Built
55%
Pre-1986 (Lead Paint Risk)
23%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (23%) 1970–1986 (32%) Post-1986 (45%)

Over half of homes in Sandwich 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 Sandwich Homeowners

The Sandwich equity share sits above the low tier but short of the range where remediation becomes a heavy financial burden - the cost-to-value ratio is moderate, and deliberate planning is the key practical lever for most homeowners.

Median Home Value
$240,000
Est. Remediation
$2,700
Remediation as % of home value 1.1%

Remediation costs are moderate relative to home values in Sandwich. The estimated $1,750–$3,900 range is manageable for most homeowners but still worth budgeting for. Home values are 30% above the Illinois average.

Lead Exposure Risk for Children in Sandwich

55%
Homes Built Before 1986
0.0023
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.

Households with kids in the home - for whom CDC guidance places particular weight on minimizing exposure - face a specific local picture in Sandwich. 55% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.

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

Historical NFIP Claim Context in Sandwich

3
Total FEMA Flood Claims
$8,923
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Sandwich contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $8,923. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,700</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many water violations does Sandwich have?
Sandwich water systems have a total of 8 EPA violations. Violations are tracked across 1 ZIP code.
Does Sandwich water have lead?
The average 90th-percentile lead level in Sandwich is 0.0023 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 many water systems serve Sandwich?
Sandwich is served by 3 public water systems across 1 ZIP code, serving approximately 11,233 people.
How much does it cost to fix water issues in Sandwich?
Estimated remediation costs in Sandwich average $2,700 per household, ranging from $1,750 to $3,900. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Sandwich, IL

How to cite this page

APA ZipCheckup. (2026). Sandwich, IL: 8 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/il/sandwich/
BibTeX
@misc{zipcheckup-cities-il-sandwich,
  author = {{ZipCheckup}},
  title  = {{Sandwich, IL: 8 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/sandwich/}
}

Page version: August 2026.

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