Alton Bay, NH: 1 Violation - Home Safety Score unavailable
1 ZIP code · 1 water system · Updated
Data: EPA SDWIS
What You Should Know About Alton Bay Water
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.21 mg/L - exceeds the EPA action level of 0.015 mg/L.
- Homes built before 1986: 63% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 12.77 - above typical levels.
Who Supplies Your Water in Alton Bay
Across most of Alton Bay, NH, residential water comes from a single utility. That provider sets rates, manages infrastructure maintenance, and files compliance reports with the EPA on behalf of the households it serves. Federal tracking data shows 1 system on record, but one carries the bulk of the service load.
Overview
We track home safety data for 1 ZIP code in Alton Bay, New Hampshire, covering 1 community water system serving approximately 2,269 people. 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
Alton Bay water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.2100 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 03810 | — | 1 | 0 | Alton Water Works |
All ZIP Codes in Alton Bay
- 03810 - 1 violation
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Alton Bay
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 Alton Bay Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Alton Bay
With 63% 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
For residents trying to assess tap water risk in Alton Bay, the median build year of 1974 is the starting context. It signals that a majority of homes were constructed before 1986 - the year federal rules prohibited lead solder in new plumbing - and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.
Over half of homes in Alton Bay 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 Alton Bay Homeowners
In Alton Bay, property values comfortably outpace what documented remediation typically costs - the equity share is proportionally low.
Remediation costs in Alton Bay are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 57% above the New Hampshire average.
Lead Exposure Risk for Children in Alton Bay
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.
Confirming what arrives at a household tap is the practical question that utility-side averages cannot answer for one specific address. In Alton Bay, where 63% of housing predates the solder ban and citywide samples sit beyond the action level, a household kit and certified filtration are the household-level tools.
<strong>1 ZIP code</strong> (100% of the city) exceeds the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Alton Bay
Historical NFIP data for Alton Bay contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,594. 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>$1,600</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.
Deep Dive Reports
Detailed analysis for Alton Bay, NH