Rock Hill, SC 29730

7 water systems1,075 residents

Excellent water quality with minimal contaminants

A

Score: 82/100

Graded on EPA violations, contaminants, severity, compliance, and enforcement history. See methodology.

Data updated June 2026 • Sources: EPA ECHO and EPA Envirofacts

6

Contaminants Detected

151

Violations on Record

63

Health-Based Violations

0

Recent Violations

Grade Breakdown

Contaminant Count19 / 25
Violation History22 / 25
Contaminant Severity14 / 25
System Compliance2 / 15
Enforcement History0 / 10
Total Score82%

82 / 100 points

Recommended Water Filters

  • Point-of-Use Carbon Filter (NSF-certified for lead)
  • Ultraviolet (UV) Purification
Compare filter types in our Filter Guide →

Consult a water quality specialist for personalized recommendations.

Rock Hill vs SC & National Average

Detected Contaminants

6 contaminants detected across water systems serving this ZIP code

ContaminantCategory
TTHMDisinfection Byproduct
Lead and Copper RuleHeavy Metal
Coliform (TCR)Microorganism
E. COLIMicroorganism
Consumer Confidence RuleOther
Stage 2 Disinfectants and Disinfection Byproducts RuleOther

Water System Information

Systems Serving This ZIP:
LOST COLONY S/D (SC4650019), GREEN EARTH PWS (SC4610009), CATAWBA INDIAN NATION CWS (SC4650063), LAMBERT MHP (SC4660108), HENSON MHP (4660111) +2 more
Population Served:
1,075
Systems With Violations:
6 of 7
Major Violations:
4
Enforcement Actions:
149

Frequently Asked Questions

What does the grade mean?

Our A–F grade ranks this ZIP code's water quality against every other analyzed ZIP in the country, based on EPA data. A = among the best, F = among the most troubled.

Is my tap water safe to drink?

Water systems regulated by the EPA must comply with Safe Drinking Water Act standards. However, if you're concerned about water quality, consider a water filter appropriate for your contaminants.

How often is the data updated?

We update our data quarterly with the latest EPA ECHO and Envirofacts data. Historical violations are tracked to identify patterns.

What filters do you recommend?

Filter recommendations are based on detected contaminants in your area. See our Filter Guide for detailed information about different filter types.