Sullivans Island Town of (1010003)
EPA ID: SC1010003 · 2,521 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Sullivans Island Town of (1010003) (SC1010003): no drinking-water violations recorded since 2021. Sullivans Island Town of (1010003)'s compliance file in EPA SDWIS lists no violations, whether health-based or monitoring and reporting, for a utility that supplies water to approximately 2,521 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Sullivans Island Town of (1010003) Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: B
Demographics of ZIP Codes Served
The ZIP codes associated with Sullivans Island Town of (1010003) have a median household income of $179,614 and about 2,127 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 55% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 32% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Sullivans Island Town of (1010003)'s water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 5 detections recorded. 2 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.
Comparable Water Systems
Similar-sized systems in South Carolina
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Sullivans Island Town of (1010003) (EPA ID: SC1010003) is a community water system in South Carolina that serves approximately 2,521 people from surface water sources.
This system serves ZIP code 29482 in Sullivans Island.
ZIP-Area Home Safety Context: B (83/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0006 mg/L | No | 2024-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
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.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by SC or modeled from parcel and building-footprint data.
- 29482 - Sullivans Island
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Sullivans Island Town of (1010003) (SC1010003) on EPA.gov.
Frequently Asked Questions
Is Sullivans Island Town of (1010003) water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Sullivans Island Town of (1010003) in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Sullivans Island Town of (1010003) serve?
Sullivans Island Town of (1010003) serves approximately 2,521 people across 1 ZIP code in South Carolina.
Where does Sullivans Island Town of (1010003) get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Sullivans Island Town of (1010003) Water Quality Report, SC. https://zipcheckup.com/water-system/sc1010003/
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title = {{Sullivans Island Town of (1010003) Water Quality Report, SC}},
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