Coosawhatchie, SC Water Safety: 73/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Water utilities in Coosawhatchie have maintained a consistent compliance record over recent monitoring periods — the city's above-average grade in SC reflects low violation rates and no systemic health concerns flagged in current data.
How Coosawhatchie Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Coosawhatchie Residents
- Estimated remediation: $1,800 per household.
- CDC health risk index: 14.76 — above typical levels.
Coosawhatchie's Water Providers
Most residential addresses in Coosawhatchie, SC are served by a single water utility — the dominant system among the 1 provider tracked in federal data.
Overview
We track water quality and home safety data for 1 ZIP code in Coosawhatchie, South Carolina (population ~21), covering 1 community water system serving approximately 2,202 people region-wide.
No EPA violations recorded across any ZIP codes in Coosawhatchie — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Coosawhatchie: B (73/100)
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
Coosawhatchie water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Coosawhatchie
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 29912 | B | YEMASSEE TOWN OF (SC2510006) | 2,202 |
All ZIP Codes in Coosawhatchie
- 29912 [B]
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.
Coosawhatchie Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Coosawhatchie: Flood History & Water Damage Risk
NFIP records stretching across multiple decades show Coosawhatchie accumulating 1 claim and carrying 100% of its ZIP codes inside FEMA flood zones — evidence of meaningful exposure that extends beyond isolated incidents. The mechanisms linking flooding to water quality haven't changed: treatment facilities can be overwhelmed, wells can be infiltrated, and distribution systems can experience backflow. For a community at this exposure level, those mechanisms shift from hypothetical to periodically relevant.
Coosawhatchie has a moderate flood history with 1 FEMA claims. 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>$1,800</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.
Deep Dive Reports
Detailed analysis for Coosawhatchie, SC