Greenfield, NH: Lead Above EPA Limits — 53/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Monitoring data across Greenfield reveals a persistent pattern of below-average compliance in NH — multiple service areas carry documented health violations, and the data has shown little overall improvement over recent EPA reporting cycles.
How Greenfield Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Greenfield Residents
- Your city's water systems recorded 11 violations in the past 5 years.
- Average lead level: 0.066 mg/L — exceeds the EPA action level of 0.015 mg/L.
- Homes built before 1986: 57% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
- CDC health risk index: 11.54.
Greenfield's Water Providers
With 2 utilities splitting service in Greenfield, NH, water accountability is distributed across 2 systems on the federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Greenfield, New Hampshire, covering 2 community water systems serving approximately 1,816 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 5 health-based violations documented.
Home Safety Score
Average Home Safety Score for Greenfield: D (53/100)
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
Greenfield water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0660 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 ZIP code 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 |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | 1 |
| Lead and Copper Rule | Treatment Technique | 4 | 1 |
| Barium | Inorganic | 2 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 03047 | D | 11 | 5 | Crotched Mountain School |
All ZIP Codes in Greenfield
- 03047 [D] — 11 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.
Greenfield 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 Greenfield's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Greenfield Infrastructure Age
With 57% 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
Housing age is one of the most reliable proxies for plumbing-era lead risk, because two federal milestones — the widespread use of lead pipes before 1970 and the continued use of lead solder until 1986 — define the highest-risk tiers of the residential housing stock. With a median build year of 1987, Greenfield falls squarely within the older range — meaning a large fraction of the housing was built under the plumbing standards of those earlier eras. The distribution above captures where that risk concentrates, and why older neighborhoods warrant particular attention from residents concerned about tap water quality.
Over half of homes in Greenfield 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.
How Remediation Costs Compare in Greenfield
At current valuations, Greenfield sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Greenfield are relatively low compared to home values. The $1,100–$4,100 estimated range is a small fraction of median property value. Home values are 14% below the New Hampshire average.
Greenfield: 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.
Reading the local data together produces a single household-level picture for Greenfield. The 57% pre-rule housing share — that is, the share of buildings constructed before federal rules removed lead solder from new plumbing — combines with citywide utility readings beyond the regulatory action level. The two indicators run in parallel here. An in-home draw produces the household-specific information that aggregate data cannot, and a certified filter via retailer networks is the standard intervention where confirmed results warrant it.
<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.
Greenfield: Flood History & Water Damage Risk
1 FEMA flood insurance claim are on file for Greenfield, and 100% of local ZIP codes fall within federally designated flood zones — enough to put flood exposure on the planning radar, though short of the concentrated-risk threshold where treatment-system vulnerability becomes a primary consideration.
Greenfield has a moderate flood history with 1 FEMA claims averaging $4,217 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 Greenfield
- Test your water at home. City-level data shows averages — your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Greenfield's water.
- Check your home's plumbing. With 57% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Greenfield, NH