Myrtle Beach Water Hardness & Quality Report (2026)
Water Hardness
6.9 grains per gallon
Source
reservoir
pH Level
7.8
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
261.8 mg/L
Est. Daily Cost
$0.31
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Myrtle Beach, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Myrtle Beach | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.7 yrs | 8.5 yrs | -33% |
| Washing Machine | 9.3 yrs | 12 yrs | -22% |
| Water Heater | 10.9 yrs | 15 yrs | -27% |
Regional Water Comparison
How Myrtle Beach compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Myrtle Beach, South Carolina | 117.5 mg/L | 6.4 ppt | 🟡 Moderately Hard | reservoir |
| Socastee, South Carolina | 108 mg/L | 5.9 ppt | 🟡 Moderately Hard | reservoir |
| Red Hill, South Carolina | 64.5 mg/L | 3.5 ppt | 🟡 Moderately Hard | reservoir |
| Conway, South Carolina | 104 mg/L | 5.7 ppt | 🟡 Moderately Hard | reservoir |
| North Myrtle Beach, South Carolina | 145.5 mg/L | 8 ppt | 🟠 Hard | reservoir |
National Benchmark
How Myrtle Beach compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Myrtle Beach | 117.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Myrtle Beach's Water Unique?
Local geology and source profile
Myrtle Beach, South Carolina, in Horry County — a major southeast Atlantic coastal resort city (Myrtle Beach is one of the most visited vacation destinations in the United States — the primary city of the Grand Strand (a 60-mile arc of Atlantic Ocean beachfront in Horry and Georgetown Counties, South Carolina) which attracts more than 14 million visitors annually; Myrtle Beach is particularly famous for its family-friendly beach resorts, golf courses (Myrtle Beach has the highest concentration of golf courses of any resort region in the United States — over 100 courses), the Carolina country music entertainment venue tradition, and the Myrtle Beach Boardwalk and Promenade), a diverse Horry County community with a significant Mexican-American, Haitian-American, and tourism-industry working population, home of Coastal Carolina University (a rapidly growing southeast coastal Carolina university), and one of the fastest-growing coastal communities in the United States — draws its municipal water supply via the Myrtle Beach Water Resources Department. Water hardness in Myrtle Beach measures 117.5 mg/L — classified as moderately hard.
Myrtle Beach's moderate hardness reflects the Horry County Atlantic coastal plain aquifer's calcareous-moderate character. The Horry County coastal plain aquifer draws from the Eocene Black Mingo and Black Creek Formations (calcareous-moderate marine sediments). Myrtle Beach Water Resources applies effective treatment, producing the moderate 117.5 mg/L.
At 117.5 mg/L, Myrtle Beach residents encounter moderate scale accumulation. Monthly cleaning is recommended. Myrtle Beach Water Resources consistently delivers water meeting all South Carolina DHEC and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Upper Floridan Aquifer and Surficial Aquifer via the Myrtle Beach Water Resources Department — the Horry County northeast South Carolina Grand Strand corridor (Eocene calcareous-moderate Black Mingo and Black Creek Formations — the calcareous-moderate northeast South Carolina Atlantic coastal plain aquifer; effective treatment); moderately hard supply at 117.5 mg/L in Horry County.