Silverdale, PA: High Radon Risk — 40/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Unlike better-scoring cities in PA, Silverdale records health-based violations across a meaningful portion of its service areas — the overall safety grade is well below average.
How Silverdale Compares
Data: EPA SDWIS Last verified: 2026-06-03
Silverdale Water: The Quick Version
- Homes built before 1986: 73% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
Water Systems Serving Silverdale
In Silverdale, PA, residential water supply is distributed across multiple utilities rather than concentrated in one. The 2 leading providers out of 2 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 1 ZIP code in Silverdale, Pennsylvania (population ~450), covering 2 community water systems serving approximately 8,812 people region-wide.
No EPA violations recorded across any ZIP codes in Silverdale — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Silverdale: D (40/100)
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
Silverdale water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Silverdale
- 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 18962 | D | Hilltown Twp Water&sewer Authority | 5,770 |
All ZIP Codes in Silverdale
- 18962 [D]
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.
How Old Is Silverdale's Housing Stock?
With 73% 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
Viewed through the lens of construction era, Silverdale is predominantly an older city — a median build year of 1961 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Silverdale 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.
Silverdale: Remediation Cost in Perspective
Property equity in Silverdale runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Silverdale are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 62% above the Pennsylvania average.
Protecting Children from Lead in Silverdale
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.
Practically, the structural drivers in Silverdale — 73% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Silverdale
- 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 73% 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 Silverdale, PA