CITY REPORT DE

New Castle, DE: 1 Violation - Home Safety 66/100

2 ZIP codes · 5 water systems · Updated

ZipCheckup grade for New Castle: C.

A mixed picture - some signals here are worth your attention.

Based on current EPA data, New Castle, DE reflects fair but uneven tap water safety.

How New Castle Compares

New Castle66/100
Delaware avg81/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
5
Water Systems
1
ZIPs with Violations
C · 66
Avg Safety Score
Zone 2
Radon Risk (Moderate)
$243K
Median Home Value
$1,300
Est. Remediation (0.5% of home value)

What You Should Know About New Castle Water

  • Your city's water systems recorded 1 violation in the past 5 years.
  • Average lead level: 0.002 mg/L.
  • Estimated remediation: $1,300 per household.
  • CDC health risk index: 12.25 - above typical levels.

Who Supplies Your Water in New Castle

Across New Castle, DE, residential water comes from 3 primary utilities rather than a single consolidated provider. Each system operates independently - managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 5 water systems in the area, with these top providers accounting for the majority of residential connections.

Overview

We track home safety data for 2 ZIP codes in New Castle, Delaware (population ~60,593), covering 5 community water systems serving approximately 447,744 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 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.

Home Safety Score

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

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

New Castle water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 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 2 (Moderate Risk)

  • Zone 1 (High): 0 ZIP codes
  • Zone 2 (Moderate): 2 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

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 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
19720 C 1 0 Artesian Water Company

All ZIP Codes in New Castle

Data Sources

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

Health Outcomes in New Castle

10.4%
Asthma (US: 9.8%)
12.2%
Diabetes (US: 10.4%)
15.5%
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 12.2% ↑
Mental Health 15.5% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in New Castle Water

Consumer Confidence Report Rule 2 violations
Reporting

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

Cost Context: What Remediation Means for New Castle Homeowners

In New Castle, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.

Median Home Value
$242,600
Est. Remediation
$1,300
Remediation as % of home value 0.5%

Remediation costs in New Castle are relatively low compared to home values. The $600–$2,100 estimated range is a small fraction of median property value. Home values are 31% below the Delaware average.

Lead Exposure Risk for Children in New Castle

0.002
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.

Lead risk in New Castle appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

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

Historical NFIP Claim Context in New Castle

144
Total FEMA Flood Claims
$16,841
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for New Castle contains 144 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,841. Among ZIP codes with claim records, 100% 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>$1,300</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.

What You Can Do in New Castle

  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 Consumer Confidence Report Rule can reduce the most common contaminant found in New Castle's water.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

What does the Home Safety Score mean for New Castle, DE?
New Castle has an average Home Safety Score of 66/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 1 EPA violation has been recorded. Check individual ZIP code reports for component details.
How many water violations does New Castle have?
New Castle water systems have a total of 1 EPA violation. Violations are tracked across 2 ZIP codes.
Does New Castle water have lead?
The average 90th-percentile lead level in New Castle is 0.002 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 New Castle compare to Delaware average?
New Castle has an average Home Safety Score of 66/100, which is below the Delaware state average of 81/100 for the same model series.
How many water systems serve New Castle?
New Castle is served by 5 public water systems across 2 ZIP codes, serving approximately 60,593 people.
How much does it cost to fix water issues in New Castle?
Estimated remediation costs in New Castle average $1,300 per household, ranging from $600 to $2,100. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesDelaware → New Castle, DE

How to cite this page

APA ZipCheckup. (2026). New Castle, DE: 1 Violation - Home Safety 66/100. https://zipcheckup.com/cities/de/new-castle/
BibTeX
@misc{zipcheckup-cities-de-new-castle,
  author = {{ZipCheckup}},
  title  = {{New Castle, DE: 1 Violation - Home Safety 66/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/de/new-castle/}
}

Page version: August 2026.

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