Water Quality: Ellicott City, MD
5 water systems • 649 people served
Multiple Health ViolationsWater Quality Summary
Ellicott City is served by 5 public water systems with a combined service population of 649 people, and has 41 EPA Safe Drinking Water Act violations on record. Critically, 9 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Ellicott City's violation count is 12% above the national average for Maryland. Contaminants associated with violations include Disinfection Byproducts, Selenium, Stage 2 DBP.
Contaminants Found
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Ellicott City
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| LUTHERAN VILLAGE AT MILLER'S GRANT | MD0130007 | Surface Water | 315 | 12 |
| ROCKBROOK VILLAGE MOBILE HOME PARK | MD0060214 | Groundwater | 150 | 8 |
| LAKEVIEW MHP LLC | MD0060208 | Groundwater | 76 | 10 |
| SULLIVANS MOBILE HOME PARK COMMUNITY | MD0060215 | Groundwater | 70 | 9 |
| TAYLORSVILLE MHC, LLC | MD0060216 | Groundwater | 38 | 2 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Maryland
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.