Conway, SC water hardness

Tap water hardness
42mg/L
2.5gpg
Soft

Reported by Conway City of (Sc2610008) · February 2025

SC typical
32 mg/L
EPA health violations since 2016
0
Data
Utility report

The water in Conway carries roughly 42 mg/L of dissolved calcium and magnesium, or 2.5 grains per gallon. That is soft water. The number comes from Conway City of (Sc2610008), dated February 2025.

Conway on the hardness scale, with nearby cities
060120180240300360+SC typical 32Moncks Corner: 20 mg/LMoncks Corner 20Florence: 21 mg/LFlorence 21Sumter: 23 mg/LSumter 23Myrtle Beach: 30 mg/LMyrtle Beach 30North Myrtle Beach: 30 mg/LNorth Myrtle Beach 30Socastee: 31 mg/LSocastee 31Murrells Inlet: 31 mg/LMurrells Inlet 31Little River: 41 mg/LLittle River 41Red Hill: 42 mg/LRed Hill 42Goose Creek: 46 mg/LGoose Creek 46Conway 42mg/L as calcium carbonate060120180240300360+SC 32Myrtle Beach: 30 mg/LMyrtle Bea. 30North Myrtle Beach: 30 mg/LNorth Myrt. 30Socastee: 31 mg/LSocastee 31Murrells Inlet: 31 mg/LMurrells I. 31Little River: 41 mg/LLittle Riv. 41Red Hill: 42 mg/LRed Hill 4242 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 42 mg/L, Conway is close to the typical South Carolina figure of 32 mg/L. Of the 10 nearest cities we track, 8 have softer water and 1 has harder. The range nearby runs from 20 mg/L in Moncks Corner to 46 in Goose Creek.

What 42 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 42 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Conway's water system

Conway City of (Sc2610008) · PWSID SC2610008

No health-based violations since 2016

Serves about 27,005 people from surface water.

Health-based
0
Monitoring or reporting
2
Open now
0

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Conway water hard?

No. It measures about 42 mg/L (2.5 grains per gallon), which the USGS classes as soft.

What is the water hardness in Conway in grains per gallon?

About 2.5 gpg. One grain per gallon equals 17.1 mg/L, so 42 mg/L divided by 17.1 gives 2.5.

Has the Conway water system had EPA violations?

EPA records show no health-based violations for Conway City of (Sc2610008) since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 58 cities in South Carolina

Hardness data: TapWaterData US Water Hardness (utility report, February 19, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.