PlainWater

County profile · EPA SDWIS + UCMR5

Laurens County, South Carolina

11 SDWIS-listed public water systems serve 59,423 people in Laurens County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

11
SDWIS water systems Smaller third of counties
335
Total violations Lower third of counties
90.9%
SDWIS systems w/ a violation Lower third of counties
100.0%
UCMR5 PFAS rate (3 tested) Upper third of counties with tests

SDWIS compliance plate

Sheet SC059 · Laurens County 11 sys · 335 viol · #844/3254

VIOL-SEVERE · HEALTH-HIGH · RANK-UPPER · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 90.9% flagged
  • HEALTH-HIGH 48.7% health
  • RANK-UPPER #844/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 64%
  • SYS-SMALL 11 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Calhoun County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Laurens County ranks #844 of 3,254 counties by people served, and #22 of 46 counties in South Carolina. See methodology · corpus placement.

Laurens County standing, lower-flagged corpus third

Flagged-system rate 90.9% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 48.7% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #844 of 3,254 · #22 of 46 in South Carolina.

Flagged-rate neighbourhood around Laurens County

Lowest/highest poles plus in-state counties nearest Laurens County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Horry · lowest Sumter · near Laurens · this county Lee · highest 26.4% 87.5% 87.5% 88.9% 90.9% 90.9% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

Compare beyond South Carolina

Lower-flagged peers for Laurens County

Cross-state counties nearest Laurens County on flagged-system share (90.9%) and cumulative violation count (335). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.