How does Spartanburg's water compare to the national average?

The USA national average is 151 mg/L. Spartanburg (≈ 0–59 mg/L) is 121 mg/L softer than average.

Spartanburg Water Hardness & Quality Report (2026)

Water Hardness

soft

~0–59 mg/L

Soft

estimated · not lab-verified

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

$0.08

energy & soap waste

Source: See methodology section below · Updated 2026

soft~0–59 mg/LSoft · est.

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 4% efficiency due to mineral buildup.

Appliance	In Spartanburg	Soft Water City	Efficiency Loss
Kettle	8.2 yrs	8.5 yrs	-4%
Washing Machine	11.5 yrs	12 yrs	-4%
Water Heater	14.4 yrs	15 yrs	-4%

Regional Water Comparison

How Spartanburg compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Spartanburg, South Carolina	≈ 0–59 mg/L	0 ppt	🟢 Soft	reservoir
Greer, South Carolina	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Gaffney, South Carolina	≈ 180+ mg/L	171.6 ppt	🔴 Very Hard	reservoir
Five Forks, South Carolina	≈ 0–60 mg/L	6.9 ppt	🟢 Soft	reservoir
Taylors, South Carolina	≈ 0–60 mg/L	5 ppt	🟢 Soft	reservoir

National Benchmark

How Spartanburg compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Spartanburg	≈ 0–59 mg/L	🟢 None
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Spartanburg's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 369.1 mg/LpH: 8.1

Spartanburg Water is the public utility serving Spartanburg County, South Carolina, primarily the city of Spartanburg and surrounding areas. It draws surface water from three man-made reservoirs: Lake William C. Bowen, Municipal Reservoir #1, and Lake H. Taylor Blalock. Additional sources include Hogback Creek and Vaughn's Creek, treated at the Landrum Water Treatment Facility. Primary treatment occurs at the R.B. Simms Water Treatment Facility for Lakes Bowen and Reservoir #1, and the Myles W. Whitlock, Jr. Water Treatment Facility for Lake Blalock when operational.

The watersheds span the Piedmont physiographic province in the Broad River Basin, with Lake Bowen's catchment in Spartanburg and eastern Greenville Counties, and Lake Blalock's watershed extending across the South Carolina–North Carolina border along the North and South Pacolet Rivers. Underlying geology consists of ancient metamorphic rocks — gneiss, schist, and granitic intrusions of the Carolina Slate Belt — fostering a soft water profile due to low weathering rates of calcium and magnesium-bearing minerals; sparse carbonate rocks result in minimally mineralized water chemistry.

Soft water minimizes scale buildup, benefiting appliances like water heaters, dishwashers, and washing machines by reducing energy loss and extending lifespan with little maintenance needed. Plumbing endures longer without calcium deposits, and soap lathers well; a water softener is typically unnecessary and could introduce sodium unnecessarily. The 2022 report lists pH at 7.1 (range 6.8–7.4), sulfate at 14 ppm, and total dissolved solids at 45 ppm — all well within EPA limits. PFAS testing by Spartanburg Water and SCDES shows no levels exceeding EPA guidance; treatment involves conventional coagulation, sedimentation, filtration, and disinfection at the facilities.

Geology & Source: Broad River Basin Piedmont — Precambrian to Paleozoic metamorphic gneiss, schist, and granite of the Carolina Slate Belt; no significant limestone or dolomite yields naturally soft, low-mineral water

Other South Carolina Water Reports

Greer

≈ 120–179 mg/L

🟠 Hard

Gaffney

≈ 180+ mg/L

🔴 Very Hard

Five Forks

≈ 0–60 mg/L

🟢 Soft

Taylors

≈ 0–60 mg/L

🟢 Soft

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Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Spartanburg's water safe to drink?

Yes. Spartanburg's water meets all federal safety standards. The hardness is ≈ 0–59 mg/L (Soft), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Spartanburg?

Spartanburg's water is soft at ≈ 0–59 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Spartanburg compare to the USA average?

The USA national average is 151 mg/L. Spartanburg (≈ 0–59 mg/L) is 121 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Spartanburg is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.