Mount Holly, VT Water Safety: 63/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Mount Holly water quality is uneven — some service areas show clean compliance; others carry documented violations in VT EPA records.
How Mount Holly Compares
Data: EPA SDWIS Last verified: 2026-06-03
Mount Holly Water: The Quick Version
- Homes built before 1986: 63% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
- CDC health risk index: 13.46 — above typical levels.
Water Systems Serving Mount Holly
Structurally, Mount Holly, VT's water supply is divided. Federal data identifies 2 water systems in the area, with 2 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 1 ZIP code in Mount Holly, Vermont (population ~781), covering 2 community water systems serving approximately 1,208 people region-wide.
No EPA violations recorded across any ZIP codes in Mount Holly — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Mount Holly: C (63/100)
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
Mount Holly water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Mount Holly
- 0 ZIP codes 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 05758 | C | WALLINGFORD FIRE DISTRICT 1 | 956 |
All ZIP Codes in Mount Holly
- 05758 [C]
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.
CDC Health Data for Mount Holly
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
How Old Is Mount Holly's Housing Stock?
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
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Mount Holly's median build year of 1972 places it squarely in that category.
Over half of homes in Mount Holly 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.
Mount Holly: Remediation Cost in Perspective
At current valuations, Mount Holly sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Mount Holly are relatively low compared to home values. The $1,200–$3,300 estimated range is a small fraction of median property value. Home values are 18% below the Vermont average.
Protecting Children from Lead in Mount Holly
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.
When older housing represents 63% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Mount Holly address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Mount Holly
Measured across the NFIP's multi-decade tracking period, Mount Holly shows a moderate flood record — 5 claims and 100% 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.
Mount Holly has a moderate flood history with 5 FEMA claims averaging $26,961 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>$2,200</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 Mount Holly
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 63% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Mount Holly, VT