Baltimore's Water Use Rules: The Rules That Matter

Every city handles water use rules a little differently. In Baltimore, Maryland, there are 3 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Lawn Watering Restrictions

Baltimore residents face mandatory outdoor watering restrictions when the Maryland Department of the Environment declares drought conditions. DPW issues complementary advisories. Daytime sprinkler use, washing pavement, and ornamental fountain operation may be limited during designated drought stages.

Key details: Lead utility: DPW Bureau of Water. State trigger: MDE drought declaration. Stages: Watch warning emergency. Common rule: Time-of-day watering.

Civil fines starting around $100 per violation during emergency drought stage, escalating for repeats. Continued violations during emergencies can lead to service shutoff under Baltimore Code Art. 24 water provisions.

Leak Reporting Duty

Baltimore DPW asks customers to report water main breaks and underground leaks to 311 promptly. Customers with documented private-side leaks may apply for billing adjustments. The EPA consent decree with DPW emphasizes leak detection across the aging system serving Back River and Patapsco WWTPs.

Key details: Report channel: Call 311. Customer relief: Bill adjustment program. Major plants: Back River and Patapsco. Federal oversight: EPA consent decree.

Failure to repair a known private-side leak after notification can lead to estimated billing without credit and ultimately water service shutoff after standard delinquency procedures under Art. 24.

Baltimore is more permissive than most cities when it comes to leak reporting duty. That said, there are still limits.

Recycled Water Rules

Baltimore explores treated effluent reuse from Back River and Patapsco WWTPs for industrial cooling, irrigation, and street-cleaning applications. State permits under MDE and the Chesapeake Bay TMDL guide quality standards. Direct potable reuse is not currently authorized.

Key details: State regulator: MDE Water and Science. Plants: Back River Patapsco WWTPs. Pipe color: Purple non-potable. Bay framework: Chesapeake TMDL.

Unauthorized cross-connection between potable and reclaimed systems carries plumbing code citations, immediate shutdown of the reuse line, and possible MDE enforcement actions including civil penalties.

If you are coming from a city with tighter rules, you will find Baltimore gives residents more flexibility on recycled water rules.

The Bottom Line

Compared to many U.S. cities, Baltimore gives residents more room on water use rules. 2 of the 3 rules here are rated permissive. But permissive does not mean unregulated. There are still requirements, and the city does enforce them when violations are reported.

Keep in mind that Baltimore can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.