Skip to content

City water profile

Summerville water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Summerville, South Carolina.

Median indexed hardness

13PPM

One indexed ZIP

Range 13.4–13.4 PPM

State comparison
6 PPM below
State hardness rank
#107 of 173
Matched utilities
9
Active health records
0

City summary

What the indexed records say

Summerville has 1 published ZIP profile across Dorchester County. The indexed median is 13 PPM, compared with 19 PPM across South Carolina.

Among the 173 South Carolinacities with an indexed median, Summerville ranks #107from highest to lowest. Across all 236 state ZIP profiles, available estimates run from 4.2to 106 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
9.1 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 11, 2016 to May 12, 2026.

ZIP directory

Water reports in Summerville

Open a ZIP for site-level provenance and measurements.

ZIP code

29483

Soft

13.4 PPM

Nearest site
9.1 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Summerville Cpw (sc1810003)

PWSID SC1810003

Surface water
System population served
81,750
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Dcwa Knightsville (sc1820001)

PWSID SC1820001

Surface water
System population served
40,141
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Dcws/clay Field Drive (sc1850014)

PWSID SC1850014

Surface water
System population served
1,648
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Homecoming Subdivision (sc1850016)

PWSID SC1850016

Surface water
System population served
883
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Dcwa Calomet Valley (1850009)

PWSID SC1850009

Surface water
System population served
275
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Heron'S Walk Phase 1 (sc1850017)

PWSID SC1850017

Surface water
System population served
231
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Dcws Highway 17a (sc1820009)

PWSID SC1820009

Groundwater
System population served
200
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Dcws Caleb Court (sc1850015)

PWSID SC1850015

Surface water
System population served
156
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Sandy Run Mhp (sc0860037)

PWSID SC0860037

Groundwater
System population served
41
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Gross Alpha, Excl. Radon and USC0860037Jan 1, 2024Resolved · health-based
Gross Alpha, Excl. Radon and USC0860037Oct 1, 2022Resolved · health-based
Gross Alpha, Excl. Radon and USC0860037Jul 1, 2022Resolved · health-based
Gross Alpha, Excl. Radon and USC0860037Apr 1, 2022Resolved · health-based
Gross Alpha, Excl. Radon and USC0860037Jan 1, 2022Resolved · health-based
TTHMSC1820009Oct 1, 2021Resolved
Total Haloacetic Acids (HAA5)SC1820009Oct 1, 2021Resolved
Gross Alpha, Excl. Radon and USC0860037Oct 1, 2021Resolved · health-based
Gross Alpha, Excl. Radon and USC0860037Jul 1, 2021Resolved · health-based
Gross Alpha, Excl. Radon and USC0860037Apr 1, 2021Resolved · health-based

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Summerville

Is the water hard?

The indexed city median is 13 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.