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Summerville, South Carolina: Is the Tap Water Safe to Drink?

2026 EPA water quality data for 22 community water systems serving 157,718+ residents. See violations, PFAS results, lead test results, and safety grades — free.

Is Summerville Tap Water Safe to Drink?

Summerville has 22 community water systems. 18 of 22 graded systems meet all EPA standards (grade A or B), while 4 have recorded violations. No active health-based violations are currently open. Check individual system reports below for specifics.

Summerville Water Quality Overview

Summerville, South Carolina is served by 22 community water systems providing water to approximately 157,718 residents. These systems draw from groundwater (11), surface water purchased (10), groundwater purchased (1) sources. Summerville water systems have recorded 47 health-based violations in their history, though none are currently active. Including monitoring and reporting violations, there are 86 total violations on record.

22
Water Systems
47
Health Violations
18/22
Rated A or B
4
PFAS Tested
💧 Filter Guide📖 Violations Explained📄 Read Your CCR⚠ PFAS Guide

Find Your Water System

Search by ZIP code to find your exact water provider and see its full EPA report.

All 22 water systems in Summerville

SUMMERVILLE CPW (SC1810003) C
SUMMERVILLE, SC · 81,750 people · Surface Water Purchased 2 health violations in past 5 yrs
DCWA KNIGHTSVILLE (SC1820001) C
SUMMERVILLE, SC · 40,141 people · Surface Water Purchased 2 health violations in past 5 yrs
DCWS ASHLEY PHOSPHATE (SC1820008) C
SUMMERVILLE, SC · 26,536 people · Surface Water Purchased 2 health violations in past 5 yrs
DCWS/CLAY FIELD DRIVE (SC1850014) A
SUMMERVILLE, SC · 1,648 people · Surface Water Purchased ✓ No recent health violations
DCWS SOUTHERN PALMS (SC1850011) A
SUMMERVILLE, SC · 1,494 people · Surface Water Purchased ✓ No recent health violations
RIDGEVILLE INDUSTRIAL CAMPUS (SC1830031) A
SUMMERVILLE, SC · 1,000 people · Groundwater ✓ No recent health violations
DCWS WOODLAND HIGH SCHOOL (1870119) A
SUMMERVILLE, SC · 1,000 people · Groundwater ✓ No recent health violations
DCWS EDISTO TRIBAL COUNCIL (1850010) A
SUMMERVILLE, SC · 925 people · Groundwater ✓ No recent health violations
HOMECOMING SUBDIVISION (SC1850016) A
SUMMERVILLE, SC · 883 people · Surface Water Purchased ✓ No recent health violations
DCWA TRANQUIL ACRES (SC1820003) A
SUMMERVILLE, SC · 858 people · Surface Water Purchased ✓ No recent health violations
DCWS REEVESVILLE (SC1820002) A
SUMMERVILLE, SC · 300 people · Groundwater ✓ No recent health violations
DCWA CALOMET VALLEY (1850009) C
SUMMERVILLE, SC · 275 people · Surface Water Purchased 2 health violations in past 5 yrs
HERON'S WALK PHASE 1 (SC1850017) A
SUMMERVILLE, SC · 231 people · Surface Water Purchased ✓ No recent health violations
DCWS CALEB COURT (SC1850015) A
SUMMERVILLE, SC · 156 people · Surface Water Purchased ✓ No recent health violations
DCWS CONOFLOW (SC1820007) A
SUMMERVILLE, SC · 150 people · Groundwater ✓ No recent health violations
DCWS I-95 (SC1870914) A
SUMMERVILLE, SC · 102 people · Groundwater ✓ No recent health violations
DCWS BUILDING (1870903) A
SUMMERVILLE, SC · 100 people · Groundwater ✓ No recent health violations
DCWS HIGHWAY 17A (1820009) A
SUMMERVILLE, SC · 50 people · Groundwater Purchased ✓ No recent health violations
SANDY RUN MHP (SC0860037) A
SUMMERVILLE, SC · 41 people · Groundwater ✓ No recent health violations
LOCKLAIR'S LANDING (SC0870853) A
SUMMERVILLE, SC · 26 people · Groundwater ✓ No recent health violations
MACS LANDING (SC0870855) A
SUMMERVILLE, SC · 26 people · Groundwater ✓ No recent health violations
DORCHESTER SHRINE CLUB (SC1870906) A
SUMMERVILLE, SC · 26 people · Groundwater ✓ No recent health violations

Looking for water quality data across the whole state? See our full South Carolina tap water safety report covering South Carolina’s EPA-regulated water systems.

Summerville Drinking Water: Frequently Asked Questions

Is Summerville, South Carolina tap water safe to drink?

Summerville has 22 community water systems. 18 of 22 graded systems meet all EPA standards (grade A or B), while 4 have recorded violations. No active health-based violations are currently open. Check individual system reports below for specifics.

How many water utilities serve Summerville, South Carolina?

22 community water systems serve Summerville, South Carolina, providing water to approximately 157,718 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.

Does Summerville tap water have lead?

Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.

What contaminants have been found in Summerville drinking water?

EPA violation records for Summerville water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.

How do I find out which water company serves my address in Summerville?

Enter your Summerville ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).