Hanover, PA: 40 Violations — 62/100 (2026)
5 ZIP codes · 6 water systems · Updated 2026-06-03
Safe water is the norm across most of Hanover, PA — but documented violations push the city to the middle safety tier.
How Hanover Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Hanover, PA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Hanover.
Hanover Water: The Quick Version
- Your city's water systems recorded 40 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Estimated remediation: $1,900 per household.
Water Systems Serving Hanover
Residential addresses in Hanover, PA are served by 3 primary water providers out of 6 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.
Overview
We track water quality and home safety data for 5 ZIP codes in Hanover, Pennsylvania (population ~55,374), covering 6 community water systems serving approximately 263,303 people region-wide.
5 of 5 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Hanover: C (62/100)
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
Hanover water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0020 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)
- Zone 1 (High): 5 ZIP codes
- Zone 2 (Moderate): 0 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 |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 12 | 5 |
| Fecal Coliform | Microbiological | 12 | 5 |
| Chlorite | Disinfection Byproducts | 6 | 5 |
| Surface Water Treatment Rule | Treatment Technique | 6 | 5 |
| Lead and Copper Rule | Treatment Technique | 6 | 5 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 17331 | C | 8 | 0 | Hanover Muni Water Works |
| 17332 | C | 8 | 0 | Hanover Muni Water Works |
| 17333 | C | 8 | 0 | Hanover Muni Water Works |
| 17334 | C | 8 | 0 | Hanover Muni Water Works |
| 17335 | C | 8 | 0 | Hanover Muni Water Works |
All ZIP Codes in Hanover
- 17331 [C] — 8 violations
- 17332 [C] — 8 violations
- 17333 [C] — 8 violations
- 17334 [C] — 8 violations
- 17335 [C] — 8 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.
Key Contaminants Detected in Hanover
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Hanover: Remediation Cost in Perspective
Setting Hanover remediation figures against its property market, the resulting ratio sits comfortably in the low tier — a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Hanover are relatively low compared to home values. The $1,260–$2,520 estimated range is a small fraction of median property value. Home values are 7% above the Pennsylvania average.
Protecting Children from Lead in Hanover
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 Hanover 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.
Climate-Related Water Risk for Hanover
FEMA data shows 40% of Hanover's ZIP codes mapped into designated flood zones, paired with an NFIP record of 39 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Hanover has a moderate flood history with 39 FEMA claims averaging $10,388 per payout. 40% 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>$1,900</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.
What You Can Do in Hanover
- 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.
- Install a certified water filter. Filters rated for Haloacetic Acids (HAA5) can reduce the most common contaminant found in Hanover's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Hanover, PA