Newark, DE: 55 Violations — 78/100 (2026)
11 ZIP codes · 6 water systems · Updated 2026-06-03
For households in Newark, DE water data shows a consistently above-average safety picture.
How Newark Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Newark, DE
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Newark score across all safety grades.
What You Should Know About Newark Water
- Your city's water systems recorded 55 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Estimated remediation: $1,173 per household.
- CDC health risk index: 12.25 — above typical levels.
Who Supplies Your Water in Newark
Water delivery in Newark, DE is handled by 3 utilities rather than a single system — drawn from 6 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 11 ZIP codes in Newark, Delaware (population ~142,233), covering 6 community water systems serving approximately 406,292 people region-wide.
11 of 11 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Newark: B (78/100)
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
Newark water systems draw from: Groundwater, Surface water.
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 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 11 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 |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 48 | 11 |
| Stage 1 DBP Rule | Treatment Technique | 12 | 11 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 19702 | B | 5 | 0 | Artesian Water Company |
| 19711 | B | 5 | 0 | Artesian Water Company |
| 19712 | B | 5 | 0 | Artesian Water Company |
| 19713 | B | 5 | 0 | Artesian Water Company |
| 19714 | B | 5 | 0 | Artesian Water Company |
| 19715 | B | 5 | 0 | Artesian Water Company |
| 19716 | B | 5 | 0 | Newark Water Department |
| 19717 | B | 5 | 0 | Newark Water Department |
| 19718 | B | 5 | 0 | Artesian Water Company |
| 19725 | B | 5 | 0 | Artesian Water Company |
All ZIP Codes in Newark
- 19702 [B] — 5 violations
- 19711 [B] — 5 violations
- 19712 [B] — 5 violations
- 19713 [B] — 5 violations
- 19714 [B] — 5 violations
- 19715 [B] — 5 violations
- 19716 [B] — 5 violations
- 19717 [B] — 5 violations
- 19718 [B] — 5 violations
- 19725 [B] — 5 violations
- 19726 [B] — 5 violations
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Newark
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Newark Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Newark Homeowners
Across Newark, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Newark are relatively low compared to home values. The $527–$1,936 estimated range is a small fraction of median property value. Home values are 6% below the Delaware average.
Lead Exposure Risk for Children in Newark
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 Newark 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.
Flood & Climate Risk in Newark
Measured across the NFIP's multi-decade tracking period, Newark shows a moderate flood record — 295 claims and 36% of ZIP codes carrying FEMA flood zone status. For water quality, that combination matters because flood events at this frequency can periodically stress infrastructure: treatment plants, private wells, and distribution systems all face elevated risk during significant flooding.
Newark has a moderate flood history with 295 FEMA claims averaging $27,152 per payout. 36% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,173</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Newark, DE