Spartanburg Water Hardness & Quality Report (2026)
Water Hardness
8.4 grains per gallon
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
369.1 mg/L
Est. Daily Cost
$0.38
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 Spartanburg, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Spartanburg | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.9 yrs | 8.5 yrs | -42% |
| Washing Machine | 8.3 yrs | 12 yrs | -31% |
| Water Heater | 9.9 yrs | 15 yrs | -34% |
Regional Water Comparison
How Spartanburg compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Spartanburg, South Carolina | 143.5 mg/L | 8 ppt | 🟠 Hard | reservoir |
| Greer, South Carolina | 100.5 mg/L | 5.6 ppt | 🟡 Moderately Hard | reservoir |
| Gaffney, South Carolina | 56.5 mg/L | 3.2 ppt | 🟢 Soft | reservoir |
| Five Forks, South Carolina | 123 mg/L | 6.9 ppt | 🟠 Hard | reservoir |
| Taylors, South Carolina | 89 mg/L | 5 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Spartanburg compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Spartanburg | 143.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Spartanburg's Water Unique?
Local geology and source profile
Spartanburg, South Carolina, the Spartanburg County seat — a major northwest South Carolina Piedmont city, historically significant in the textile industry (Spartanburg County was the center of the South Carolina Textile Crescent — the largest concentration of textile mills in the world in the early 20th century), home of several colleges (Wofford College, University of South Carolina Upstate, Converse University — one of the highest concentrations of colleges per capita in South Carolina), and now a diverse Spartanburg County community transforming with BMW Manufacturing Co. (the BMW North America manufacturing plant in Greer–Spartanburg, the largest BMW plant in the world by production) — draws its municipal water supply from Lake Blalock via Spartanburg Water. Water hardness in Spartanburg measures 143.5 mg/L — classified as moderately hard.
Spartanburg's moderate hardness reflects the northwest South Carolina Piedmont watershed's calcareous-moderate crystalline geology. The Pacolet River watershed at Lake Blalock drains: the Inner Piedmont Belt (Precambrian–Paleozoic calcareous-moderate Henderson Gneiss and amphibolite — the South Carolina–North Carolina Inner Piedmont crystalline belt with significant calcareous amphibolite and calcareous metasedimentary units); the Carolina Slate Belt (calcareous-moderate metavolcanic terrain). Spartanburg Water treatment produces the moderate 143.5 mg/L.
At 143.5 mg/L, Spartanburg residents encounter moderate scale accumulation. Monthly cleaning with citric acid solution is recommended. Spartanburg Water consistently delivers water meeting all South Carolina DHEC and EPA Safe Drinking Water Act requirements.
Geology & Source: Lake supply from the Lake Blalock (Pacolet River watershed) via the Spartanburg Water — the Spartanburg County northwest South Carolina Piedmont upland (Precambrian–Paleozoic calcareous-moderate Inner Piedmont amphibolite and calcareous schist — the South Carolina Piedmont crystalline belt; Pacolet River watershed); moderately hard supply at 143.5 mg/L in Spartanburg County.