Mount Holly Springs, PA: 1 Violation — 57/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-04
Recent monitoring in Mount Holly Springs shows middle-tier safety for PA — some systems are clean; others have logged EPA violations.
How Mount Holly Springs Compares
Data: EPA SDWIS Last verified: 2026-06-04
Mount Holly Springs Water: The Quick Version
- Your city's water systems recorded 1 violation in the past 5 years.
- Homes built before 1986: 71% — older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
Water Systems Serving Mount Holly Springs
Water supply in Mount Holly Springs, PA follows a divided structure: 2 utilities account for the largest share of residential service out of 2 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 1 ZIP code in Mount Holly Springs, Pennsylvania (population ~4,043), covering 2 community water systems serving approximately 11,945 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Mount Holly Springs: C (57/100)
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 Springs water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Mount Holly Springs
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 17065 | C | 1 | 0 | South Middleton Twp Water Authority |
All ZIP Codes in Mount Holly Springs
- 17065 [C] — 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
Updated daily.
Key Contaminants Detected in Mount Holly Springs
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Mount Holly Springs's Housing Stock?
With 71% 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
Federal plumbing rules changed in two stages — lead pipes were phased out before 1970, and lead solder was banned in 1986 — but in Mount Holly Springs, where the median build year is 1961, most of the housing was already in place before those rules took effect. The materials installed under older standards remain embedded in a substantial portion of the residential inventory today.
Over half of homes in Mount Holly Springs 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 Springs: Remediation Cost in Perspective
For most Mount Holly Springs homeowners, estimated remediation represents a moderate equity share — manageable with planning.
Remediation costs are moderate relative to home values in Mount Holly Springs. The estimated $1,600–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 6% above the Pennsylvania average.
Protecting Children from Lead in Mount Holly Springs
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.
Wherever 71% of local housing was built before solder rules changed — as is the case in Mount Holly Springs — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Mount Holly Springs
A moderate NFIP record for Mount Holly Springs — 43 insurance claims paired with 100% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Mount Holly Springs has a moderate flood history with 43 FEMA claims averaging $4,735 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>$2,400</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 Springs
- 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 Surface Water Treatment Rule can reduce the most common contaminant found in Mount Holly Springs's water.
- Check your home's plumbing. With 71% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Mount Holly Springs, PA