Laconia, NH: 2 Violations — 81/100 (2026)
2 ZIP codes · 5 water systems · Updated 2026-06-03
For households in Laconia, NH water data shows a consistently above-average safety picture.
How Laconia Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Laconia Residents
- Your city's water systems recorded 2 violations in the past 5 years.
- Average lead level: 0.004 mg/L.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 12.77 — above typical levels.
Laconia's Water Providers
At present, 3 utilities serve the bulk of Laconia, NH's residential water connections out of 5 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 2 ZIP codes in Laconia, New Hampshire, covering 5 community water systems serving approximately 17,006 people.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Laconia: B (81/100)
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
Laconia water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0040 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): 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 |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 03246 | B | 1 | 0 | Laconia Water Works |
| 03247 | B | 1 | 0 | Laconia Water Works |
All ZIP Codes in Laconia
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.
Laconia Community Health Snapshot
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
What's in Laconia's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Laconia
Equity impact data for Laconia lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Laconia are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 15% below the New Hampshire average.
Laconia: Lead Risk & Vulnerable Populations
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 Laconia 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.
Laconia: Flood History & Water Damage Risk
Within the NFIP's national dataset, Laconia falls in moderate-exposure territory — 37 documented incidents spanning multiple decades, with 100% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Laconia has a moderate flood history with 37 FEMA claims averaging $10,243 per payout. 100% 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>$1,600</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 Laconia, NH