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City water profile

Sumter water quality

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

Median indexed hardness

19PPM

3 indexed ZIPs

Range 17.7–21.2 PPM

State comparison
At state median
State hardness rank
#78 of 173
Matched utilities
10
Active health records
0

City summary

What the indexed records say

Sumter has 3 published ZIP profiles across Sumter County. The indexed median is 19 PPM, compared with 19 PPM across South Carolina.

Among the 173 South Carolinacities with an indexed median, Sumter ranks #78from highest to lowest. Across all 236 state ZIP profiles, available estimates run from 4.2to 106 PPM.

The 17.7–21.2 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft3 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

3 of 3 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
25 miles
Profiles with evidence
3/3

Confidence labels

High: 0Moderate: 2Low: 1

Observation window: Aug 1, 2016 to Sep 17, 2019.

ZIP directory

Water reports in Sumter

Open a ZIP for site-level provenance and measurements.

ZIP code

29150

Soft

21.2 PPM

Nearest site
17.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

29152

Soft

18.7 PPM

Nearest site
25 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

29153

Soft

17.7 PPM

Nearest site
28.1 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Sumter City Of (sc4310001)

PWSID SC4310001

Groundwater
System population served
53,070
Last reported
Jun 29, 2026

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

Oswego Rural Water Co (sc4320006)

PWSID SC4320006

Groundwater
System population served
3,282
Last reported
Jun 29, 2026

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

Bgwc Oakland Plantation (sc4350006)

PWSID SC4350006

Groundwater
System population served
1,180
Last reported
Jun 29, 2026

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

Shiloh Water System (sc4320005)

PWSID SC4320005

Groundwater
System population served
645
Last reported
Jun 29, 2026

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

Sumter-Wessex S/d (sc4350016)

PWSID SC4350016

Groundwater
System population served
412
Last reported
Jun 29, 2026

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

Bgwc Pocalla Development (sc4350007)

PWSID SC4350007

Groundwater
System population served
327
Last reported
Jun 29, 2026

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

Kokomo Palms Mhp (sc4360037)

PWSID SC4360037

Groundwater
System population served
280
Last reported
Jun 29, 2026

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

Crescent Mhp (sc4360011)

PWSID SC4360011

Groundwater
System population served
259
Last reported
Jun 29, 2026

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

Shaw Mobile Home Park (sc4360012)

PWSID SC4360012

Groundwater
System population served
173
Last reported
Jun 29, 2026

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

Granada Subdivision (sc4350008)

PWSID SC4350008

Groundwater
System population served
150
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
Consumer Confidence RuleSC4360021Oct 1, 2025Unaddressed
E. COLISC4360037Sep 4, 2025Resolved
LEAD AND COPPER RULE REVISIONSSC4360012Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSSC4360012Oct 17, 2024Resolved · health-based
LEAD AND COPPER RULE REVISIONSSC4360021Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSSC4360021Oct 17, 2024Resolved · health-based
Consumer Confidence RuleSC4360012Oct 1, 2024Unaddressed
Consumer Confidence RuleSC4360010Oct 1, 2024Unaddressed
Consumer Confidence RuleSC4350014Oct 1, 2024Unaddressed
Revised Total Coliform RuleSC4360012May 1, 2021Resolved

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 Sumter

Is the water hard?

The indexed city median is 19 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.