DCWA CALOMET VALLEY (1850009)

SUMMERVILLE, SC · ~275 people served

Check your exact address → SUMMERVILLE overview

Fair

PurityRadar safety score

PWSID

SC1850009

State

South Carolina

City

SUMMERVILLE

Population served

275

Primary source

SWP

Score history

▼ 42 points — the score moved from 100 to 58 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 58

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Nov 2023). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

6.7 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFOA

Perfluorooctanoic acid

5.2 ppt

limit 4 ppt

Above EPA limit · 1.3×

GenX (HFPO-DA)

6.2 ppt

limit 10 ppt

Near EPA limit

PFBA

7 ppt

limit —

No federal limit

PFPeA

6.7 ppt

limit —

No federal limit

PFHxA

6.1 ppt

limit —

No federal limit

PFBS

4 ppt

limit —

No federal limit

Violations & enforcement

No violations are on record for this system in EPA’s SDWIS/ECHO data.

This profile is built from EPA public records for system SC1850009 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.