STATE REPORT
SC
7 ALERTS
34 HEALTH VIOLATIONS
South Carolina Water Quality & Safety Report
42 ZIP codes · 128 water systems · IPC plumbing code · Updated 2026-03-16
Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-03-16
42
ZIP Codes
128
Water Systems
21
ZIPs with Violations
7
Active Alerts
IPC
Plumbing Code
Overview
We track water quality, weather alerts, plumbing regulations, and energy rebates for 42 ZIP codes across South Carolina, covering 128 community water systems that serve approximately 2,662,955 people.
21 of 42 ZIP codes (50%) have recorded EPA violations. 34 health-based violations have been documented.
Active Weather Alerts
7 active alerts in South Carolina including 3 warnings. Severe weather can directly affect tap water quality — flooding, power outages, and infrastructure damage may lead to boil-water advisories.
| Alert | Severity | Areas |
|---|---|---|
| Freeze Watch | Severe | Lincoln; McDuffie; Columbia; Richmond; Burke; McCormick; … |
| Freeze Watch | Severe | Robeson; Bladen; Columbus; Inland Pender; Inland New Hano… |
| Freeze Watch | Severe | Coastal Pender; Coastal New Hanover; Coastal Brunswick; C… |
| Freeze Watch | Severe | Chesterfield; Lee; Sumter; Calhoun; Clarendon; Bamberg; N… |
| Freeze Warning | Moderate | Jenkins; Screven; Candler; Bulloch; Tattnall; Evans; Alle… |
View all South Carolina alerts →
Plumbing Regulations
South Carolina follows the International Plumbing Code (2018 edition).
- Plumbing code: IPC (2018)
- Homeowner DIY: Licensed plumber required
- Water heater permit: Required
- Annual backflow test: Required
Full South Carolina regulations →
Areas with Most Violations
| ZIP Code | City | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|---|
| 29353 | Jonesville | — | 14 | 6 | ROCKY CREEK W/D (SC4420003) |
| 29672 | Seneca | — | 13 | 0 | SENECA CITY OF (SC3710002) |
| 29002 | Ballentine | — | 10 | 3 | HILTON SOUND (SC3250024) |
| 29621 | Anderson | — | 10 | 1 | ELECTRIC CITY UTILITIES (SC0410012) |
| 29201 | Columbia | — | 8 | 3 | COLUMBIA CITY OF (SC4010001) |
| 29464 | Mount Pleasant | — | 8 | 1 | MT PLEASANT WATER WORKS (1010002) |
| 29532 | Darlington | — | 8 | 0 | DARLINGTON COUNTY W&SA (SC1620001) |
| 29631 | Clemson | — | 8 | 0 | CLEMSON CITY OF (SC3910004) |
| 29526 | Conway | — | 7 | 7 | GSW&SA (SC2620004) |
| 29801 | Aiken | — | 7 | 7 | AIKEN CITY OF (0210001) |
Areas with No Violations
| ZIP Code | City | Safety Score | System | Population |
|---|---|---|---|---|
| 29003 | Bamberg | — | BAMBERG PUBLIC WORKS (SC0510001) | 3,735 |
| 29009 | Bethune | — | BETHUNE RURAL WATER (SC2820006) | 3,100 |
| 29010 | Bishopville | — | BISHOPVILLE TOWN OF (SC3110001) | 3,810 |
| 29018 | Bowman | — | BOWMAN TOWN OF (SC3810004) | 1,274 |
| 29020 | Camden | — | CAMDEN CITY OF (2810001) | 18,193 |
| 29071 | Lexington | — | JOINT MUNICIPAL WSC (SC3220003) | 47,838 |
| 29115 | Orangeburg | — | ORANGEBURG DPU (SC3810001) | 46,896 |
| 29150 | Sumter | — | SUMTER CITY OF (SC4310001) | 53,070 |
| 29169 | West Columbia | — | WEST COLUMBIA CITY OF (3210004) | 34,028 |
| 29401 | Charleston | — | CHARLESTON WATER SYSTEM (SC1010001) | 327,422 |
Lead & Copper
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
- High risk (Zone 1): 0 ZIP codes (0%)
- Moderate risk (Zone 2): 0 ZIP codes
- Low risk (Zone 3): 0 ZIP codes
All 42 ZIP Codes in South Carolina
- 29801 (Aiken) — 7 violations ⚠
- 29621 (Anderson) — 10 violations ⚠
- 29002 (Ballentine) — 10 violations ⚠
- 29003 (Bamberg)
- 29006 (Batesburg) — 2 violations
- 29901 (Beaufort) — 2 violations
- 29009 (Bethune)
- 29010 (Bishopville)
- 29018 (Bowman)
- 29020 (Camden)
- 29401 (Charleston)
- 29631 (Clemson) — 8 violations
- 29201 (Columbia) — 8 violations ⚠
- 29526 (Conway) — 7 violations ⚠
- 29532 (Darlington) — 8 violations
- 29640 (Easley) — 1 violation
- 29501 (Florence)
- 29707 (Fort Mill) — 4 violations ⚠
- 29340 (Gaffney) — 4 violations ⚠
- 29440 (Georgetown)
- 29601 (Greenville)
- 29646 (Greenwood)
- 29650 (Greer)
- 29550 (Hartsville) — 2 violations
- 29925 (Hilton Head Island)
- 29455 (Johns Island) — 6 violations
- 29353 (Jonesville) — 14 violations ⚠
- 29720 (Lancaster)
- 29071 (Lexington)
- 29464 (Mount Pleasant) — 8 violations ⚠
- 29572 (Myrtle Beach) — 1 violation
- 29841 (North Augusta) — 6 violations
- 29405 (North Charleston)
- 29582 (North Myrtle Beach) — 3 violations
- 29115 (Orangeburg)
- 29730 (Rock Hill)
- 29672 (Seneca) — 13 violations
- 29680 (Simpsonville)
- 29301 (Spartanburg) — 1 violation ⚠
- 29483 (Summerville)
- 29150 (Sumter)
- 29169 (West Columbia)
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Weather alerts: National Weather Service (NWS)
- Regulations: State plumbing boards, ICC, IAPMO
- Rebates: Rewiring America
Updated daily.