Water Quality in 21842 — Ocean City, MD
EPA data for TOWN OF OCEAN CITY
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 21842 in Ocean City, Maryland is served by TOWN OF OCEAN CITY (EPA ID: MD0230003). This system provides water to approximately 30,000 people from groundwater sources.
There are 4 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 2, 2025 | Stage 2 DBP Rule | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| January 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| January 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| January 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| January 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| January 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| January 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| January 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| January 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Nickel | Inorganic | 6 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | No |
| Stage 2 DBP Rule | Treatment Technique | 5 | Yes |
| Consumer Confidence Report Rule | Reporting | 5 | No |
| Surface Water Treatment Rule | Treatment Technique | 1 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| TOWN OF OCEAN CITY | MD0230003 | 30,000 | Groundwater |
| DELMARVA MOBILE HOME PARK | MD0230203 | 62 | Groundwater |
| BB APARTMENTS (PREV WOC VILLAGE APTS) | MD0230023 | 40 | Groundwater |
| FOUR SEASONS PARK INC. | MD0230210 | 25 | Groundwater |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Maryland
- 20601 (Waldorf) — 3 violations
- 20707 (Laurel)
- 20715 (Bowie) — 2 violations
- 20810 (Bethesda)
- 20854 (Potomac)
- 20901 (Silver Spring)
- 21014 (Bel Air) — 4 violations
- 21041 (Ellicott City) — 11 violations
- 21044 (Columbia) — 2 violations
- 21157 (Westminster) — 8 violations
- 21201 (Baltimore) — 33 violations
- 21401 (Annapolis) — 3 violations
- 21501 (Cumberland)
- 21601 (Easton)
- 21620 (Chestertown) — 2 violations
- 21660 (Ridgely) — 7 violations
- 21701 (Frederick) — 19 violations
- 21740 (Hagerstown) — 6 violations
- 21801 (Salisbury) — 4 violations
Nearby Water Quality Reports
- 19944 (Fenwick Island, DE) — 10 mi
- 19930 (Bethany Beach, DE) — 13 mi
- 19945 (Frankford, DE) — 14 mi
- 19967 (Millville, DE) — 15 mi — 8 violations
- 19939 (Dagsboro, DE) — 17 mi — 3 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for TOWN OF OCEAN CITY (MD0230003) on EPA.gov.
Frequently Asked Questions
Is the tap water in 21842 safe to drink?
Ocean City’s water system has recorded 2 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 21842’s water come from?
The primary water source for this area is groundwater. TOWN OF OCEAN CITY serves approximately 30,000 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 21842 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 21842. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 21842?
Radon zone data is not available for ZIP code 21842. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.