Saint Helena Island, SC - Home Safety Score unavailable
1 ZIP code · 3 water systems · Updated
Data: EPA SDWIS
Saint Helena Island Water: The Quick Version
- Water systems mapped to your city have 1 violation on record since 2021.
- Average of reported 90th-percentile lead results: 0.0043 mg/L.
- Homes built before 1986: 28% - older plumbing may contain lead solder.
- Estimated remediation: $800 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.75.
Water Systems Serving Saint Helena Island
When a city is linked to 3 water systems, as Saint Helena Island, SC is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.
Overview
We track home safety data for 1 ZIP code in Saint Helena Island, South Carolina (population ~9,918), covering 3 community water systems serving approximately 169,404 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
Saint Helena Island water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0043 mg/L (EPA action level: 0.015 mg/L)
- 0 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 3.
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 |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 29920 | — | 1 | 1 | Bjw&sa (sc0720003) |
All ZIP Codes in Saint Helena Island
- 29920 - 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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Saint Helena Island
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Saint Helena Island
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Saint Helena Island's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Utilities keep service line inventories, which can show whether an address in Saint Helena Island has a lead line regardless of the 1995 median build year.
Most homes in Saint Helena Island were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Saint Helena Island: Remediation Cost in Perspective
Here the gap between local home values and the estimated repair bill is wide, so the percentage shown below for Saint Helena Island stays at or under the 1% mark.
Estimated remediation costs in Saint Helena Island can be compared with local home values. The $450–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 38% above the South Carolina average.
Protecting Children from Lead in Saint Helena Island
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.
Averaged across Saint Helena Island ZIP codes, the 90th-percentile lead results reported by water systems come to less than 10 parts per billion. That is an area summary rather than a reading from any home, and EPA's health goal for lead in drinking water is zero; about 28% of local housing predates 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Saint Helena Island
Historical NFIP data for Saint Helena Island contains 1,242 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $22,976. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
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. The $800 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Saint Helena Island, SC