Is Rock Hill tap water safe to drink?

Yes with good quality

Rock Hill's tap water meets all EPA standards and scores well on our analysis. It is generally safe to drink though filtration can improve taste and provide extra precaution.

82/100
Purity Score
2
Issues Found
2 GPG
Hardness
Not detected
PFAS

2 Issues Detected in Rock Hill

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Rock Hill

Arsenic Approaching Limit (0.2 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Rock Hill
South Carolina

297,302,973,229,733 · Catawba River

Water Quality in Rock Hill, SC (2026)

Low Risk Updated March 2026 75,048 residents
See Best Filters for Rock Hill
82
Purity Score

Residents of Rock Hill draw from Catawba River infrastructure managed by Rock Hill Utilities. This 2026 analysis evaluates safety, identifies any concerns, and recommends the best home filtration options.

Contaminant Levels

PFAS
ND
Lead
2 ppb
Nitrate
0.4 mg/L
Arsenic
0.2 mg/L
Hardness
2 gpg

Health Insights

  • 1
    Chlorine levels may affect the taste of Rock Hill's tap water. A carbon filter improves flavor.

Score

82 /100
Good
"Good" threshold (70)

Rock Hill tap water is sourced from Catawba River and treated by Rock Hill Utilities. Overall purity score: 82/100 (Good). Updated for 2026.

Fix Your Water

Best filters matched to Rock Hill's 2 issues.

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Explore Rock Hill Water Data

PFAS Levels in Rock HillPFAS testing data
Rock Hill Lead LevelsLead testing data
Water Hardness in Rock HillHardness levels
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South CarolinaState rankings

Rock Hill Water FAQ

Is Rock Hill SC tap water safe to drink in 2026?
Rock Hill tap water meets EPA federal drinking water standards and scores 82/100 (Good) on PurityMap for 2026. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Rock Hill SC use chlorine or chloramine for disinfection?
Rock Hill uses chloramine as the primary disinfectant with a residual level of 1.4 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.
How hard is Rock Hill SC water and what is the TDS level?
Rock Hill water hardness is 2.0 grains per gallon (soft) with a TDS of 65 ppm (good). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Rock Hill SC drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Rock Hill drinking water.
What is the best water filter for Rock Hill?
Based on Rock Hill's water profile, we recommend the Clearly Filtered Water Pitcher. Rock Hill has elevated chlorine residuals. An under-sink carbon filter removes chlorine and disinfection byproducts at the tap.

Nearby Reports

ColumbiaSouth Carolina — 82/100CharlestonSouth Carolina — 82/100GreenvilleSouth Carolina — 82/100North CharlestonSouth Carolina — 82/100Mount PleasantSouth Carolina — 82/100SpartanburgSouth Carolina — 82/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Rock Hill Utilities CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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