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Berkeley County, SC

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Berkeley County, SC

Berkeley County is one of SC's fastest-growing counties, with Goose Creek and Summerville experiencing rapid residential development.

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Cypress swamp at Cypress Gardens, Moncks Corner, Berkeley County
Free in-home testWritten report included

By the ClearFlow Water USA team · Updated · How we create content

Most utility customers get Lake Moultrie water through the Santee Cooper regional system. Rural Berkeley County well water frequently shows iron and hardness issues.

  • Free in-home test, no obligation to purchase
  • On-site testing of your water
  • Written report of your results
  • Trained ClearFlow specialists

Berkeley County Water Quality Summary

Water Source
Lake Moultrie, via the Santee Cooper regional water system; private wells vary
Primary Concerns
Iron, PFAS, Hardness, Agricultural Nitrates
Water Hardness
Varies by utility; private wells can test harder
Utility
Berkeley County Water & Sanitation

Your water in Berkeley County

Water utility
Several; Berkeley County Water & Sanitation (BCWS), Goose Creek and Moncks Corner buy from one plant
Source
Lake Moultrie, treated at the Santee Cooper Regional Water System's 40 million-gallon-a-day plant
Disinfectant
Chloramine
Hardness
23 ppm at the Lake Moultrie plant (2025)
From the utility's own reports, checked September 2026. City water only; private wells differ, and what reaches your tap also depends on your pipes.

Where we test

Map of ClearFlow's service area: the Grand Strand, Wilmington and Charleston, with our office in ConwaySOUTH CAROLINANORTH CAROLINAAtlantic OceanGrand StrandWilmingtonCharlestonMyrtle BeachConwayNorth Myrtle BeachLittle RiverSurfside BeachGarden CityMurrells InletPawleys IslandGeorgetownAndrewsAynorLorisMullinsMarionDillonCalabashSunset BeachOcean Isle BeachShallotteHolden BeachOak IslandSouthportLelandWilmingtonCharleston

Also serving the Upstate: Greenville and Spartanburg

Berkeley County is in our Charleston service area. Map is approximate.

Cities & Communities We Serve in Berkeley County

  • Moncks Corner
  • Goose Creek
  • Hanahan
  • Summerville
  • Goose Creek
  • St. Stephen
  • Cross
  • Bonneau

Related guides

Frequently asked questions

What water utility serves Berkeley County?

Berkeley County Water & Sanitation serves most of the county. Some areas are on private wells or served by smaller systems.

Is PFAS a concern in Berkeley County water?

PFAS are regulated nationally, and utility water results appear in each utility's annual report. For private wells, only a certified lab test can tell you; we can arrange one.

How do I get a free water test in Berkeley County?

Call (843) 742-1196. ClearFlow serves all of Berkeley County.

Solutions

Treatment matched to your results

Whole House Water Filtration in SC & NCWhole house water filtration systems installed across coastal SC & NC. Free in-home water test determines what your water needs.Read more →Water Softener Installation in SC & NCWater softener systems sized from your actual test results. Free in-home hardness testing across our Carolina service areas.Read more →Reverse Osmosis Drinking Water Systems in SC & NCUnder-sink reverse osmosis drinking water systems installed across coastal SC & NC.Read more →

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  • A report that’s yours to keep
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What happens next

  1. We call you to set a time that suits you.
  2. A ClearFlow specialist tests your water at your kitchen tap.
  3. You keep the written report. No obligation.

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