Columbia, MD Water Quality
Columbia, MD has 1 public water system serving 286,158 people. The average Water Safety Score is 80/100 (B). No health violations are on record.
Water Systems in Columbia
Contaminants Detected in Columbia Water
| Contaminant | Systems Detected | Exceeding MCL |
|---|---|---|
| Combined Filter Effluent | 1 | 0 |
| Total Coliform (TCR) | 1 | 0 |
Frequently Asked Questions
Columbia has 1 public water system serving 286,158 people. The average Water Safety Score is 80/100. No health violations are currently on record. Check individual systems below for details.
Columbia water systems have detected 2 contaminants, including Combined Filter Effluent, Total Coliform (TCR). No contaminant exceedances above EPA limits are currently recorded.
The Water Safety Score (0-100, grades A through F) weighs health-based violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Scores are based on EPA SDWIS data from the last 10 years.
Request your utility's Consumer Confidence Report (CCR), consider an independent water test from a certified lab, and look into NSF-certified water filters for specific contaminants of concern. For lead, run cold water for 30 seconds before drinking.
Water quality data sourced from EPA's Safe Drinking Water Information System. City data aggregates all public water systems serving the municipality.