Cayce City of (3210003)

Water Quality Snapshot: Cayce City of (3210003)

Cayce City of (3210003) is a local-owned community water system that delivers drinking water to 17,460 residents in West Columbia, South Carolina (Lexington County) through 8,224 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 28 total violations for this system , of which 9 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 19 monitoring and reporting violations are on file. The most recent violation on record dates to 2012.

The most frequently cited contaminant at this system is TTHM, recorded in 9 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 6 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 7.4 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across South Carolina, EPA tracks 1,390 public water systems serving 4,709,324 people, with 38,355 cumulative violations and 9,705 health-based violations on record. About 65% of systems in the state carry at least one violation, and state-wide the average per system is 27.6 violations. Statewide, 107 of 164 UCMR5-tested systems have reported PFAS detections (65.2%).

Cayce City of (3210003)'s 28 violations sit above the South Carolina average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.