A90/100
HARFORD COUNTY D.P.W. — Water Quality Report 2026
Serving 104,567 people · Maryland
Water Source
Surface Water
County
—
System ID
MD0120016
Violations
10
Contaminant Test Results
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2022 – June 30, 2022Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About HARFORD COUNTY D.P.W.
Is HARFORD COUNTY D.P.W. water safe to drink?
HARFORD COUNTY D.P.W. water receives a grade of A (90/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has HARFORD COUNTY D.P.W. detected?
76 contaminants were tested in HARFORD COUNTY D.P.W.'s water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does HARFORD COUNTY D.P.W. have any EPA violations?
Yes, HARFORD COUNTY D.P.W. has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include MR.
How many people does HARFORD COUNTY D.P.W. serve?
HARFORD COUNTY D.P.W. serves approximately 104,567 people, Maryland.
What type of water does HARFORD COUNTY D.P.W. provide?
HARFORD COUNTY D.P.W. sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MD0120016.
How does HARFORD COUNTY D.P.W. compare to other utilities in Maryland?
HARFORD COUNTY D.P.W. scores 90/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Maryland state page for a full comparison of water systems.