Twin Rocks, PA: 6 Violations - Home Safety Score unavailable
1 ZIP code · 1 water system · Updated
Data: EPA SDWIS
What You Should Know About Twin Rocks Water
- Your city's water systems recorded 6 violations since 2021.
- Average of reported 90th-percentile lead results: 0.017 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
- Homes built before 1986: 93% - older plumbing may contain lead solder.
- Estimated remediation: $5,880 per household.
Who Supplies Your Water in Twin Rocks
Public water system records for Twin Rocks, PA point to a single listed provider, drawn from 1 system in the federal data; its violation record appears below.
Overview
We track home safety data for 1 ZIP code in Twin Rocks, Pennsylvania (population ~169), covering 1 community water system serving approximately 1,650 people region-wide. 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. 1 health-based violation appear in the available health breakdown.
Water Sources
Twin Rocks water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0170 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
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Public Notice Rule | Reporting | 6 | 1 |
| Revised Total Coliform Rule | Microbiological | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 15960 | — | 6 | 1 | Blacklick Valley Muni Authority |
All ZIP Codes in Twin Rocks
- 15960 - 6 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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Top Contaminants in Twin Rocks Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Twin Rocks
With 93% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Twin Rocks, where the median build year is 1901.
Over half of homes in Twin Rocks were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. 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 Twin Rocks Homeowners
Two area figures drive this section for Twin Rocks: the median home value and the estimated cost of remediation. The estimate is more than 2% of that value, which puts the city in the elevated tier; since both figures describe the area as a whole, the cost for an individual property may be higher or lower.
Estimated remediation costs in Twin Rocks equal about 7.6% of the median home value; how much that burdens a household depends on its finances. For homes valued near the median, fixing water and safety issues could cost $3,870–$8,040. Home values here are 64% below the Pennsylvania average.
Lead Exposure Risk for Children in Twin Rocks
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Families in Twin Rocks have two area figures that point toward testing. ZIP-level 90th-percentile lead results from water systems average higher than 0.015 mg/L, and 93% of homes are older than 1986. Neither one measures a specific home, which a tap test does.
1 ZIP code (100% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Twin Rocks, PA