HOWARD COUNTY D.P.W. DISTRIBUTION
Columbia, MD · 286,158 served
HOWARD COUNTY D.P.W. DISTRIBUTION serves 286,158 people in Columbia, MD. It has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
1
Currently unaddressed
0
Overall score
98/100
Violation history (last 5 years)
Get alerted when HOWARD COUNTY D.P.W. DISTRIBUTION gets a violation
We'll only email you about this water system. Unsubscribe anytime.
Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Community water system
- Water source
- Surface water purchased from another system
- Ownership
- Local government
- Service connections
- 79,084
Worried about what's in your tap?
See which water filters are certified to remove the contaminants found in your area.
Find a filter that matches your waterFrequently asked questions
Is Columbia, MD tap water safe to drink?
HOWARD COUNTY D.P.W. DISTRIBUTION has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Does HOWARD COUNTY D.P.W. DISTRIBUTION have lead in its water?
The most recent 90th-percentile lead sample is 3 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in HOWARD COUNTY D.P.W. DISTRIBUTION's water?
This system was tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.
Source: EPA SDWIS/ECHO · Data as of 2026Q2