FAQs • Harford County, MD • CivicEngage

I have an existing house on a 1 acre residential lot that is located within the perryman wellfield district. What impervious surface limitations do I have?: For existing residential lots greater than ½ acre, impervious surfaces shall not exceed 50%. If the existing impervious surface amount is greater than 50%, you may only increase impervious surfaces by 500 square feet. Please contact the Department of Planning and Zoning at 410-638-3103 for more details.

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Water Source Protection District

1. How can I find out if I live within a Water Source Protection District?: For information, please contact the Department of Planning and Zoning at 410-638-3103, or download the Water Source Protection District Map (PDF).

2. What are community and nontransient-noncommunity water systems?: A community water system is a public system that uses an average of 10,000 gallons per day and services at least 15 connections used by year-round residents, or regularly serves at least 25 residents throughout the year. A nontransient noncommunity water system is a public system that uses an average of 10,000 gallons per day and regularly serves at least 25 of the same individuals over 6 months per year. Public schools and daycare centers are examples of nontransient noncommunity systems. Please call 410-638-3103 for more information.

3. My property is within a nontransient noncommunity water system district. Are there impervious surface restrictions on my property?: Only areas within 100 feet of the wells are restricted by having no new impervious surfaces. Please call 410-638-3103 for more information.

4. My neighbor has a private well and the well's 100 foot radius comes onto my property. Do I have limitations or restrictions on my property?: No, the Water Source Protection District regulations address wells for the Perryman wellfield, community or nontransient noncommunity water systems only. Private wells for individual lots are regulated by the Health Department. Please call 410-638-3103 for more information.

5. I have an existing house on a 1 acre residential lot that is located within the perryman wellfield district. What impervious surface limitations do I have?: For existing residential lots greater than ½ acre, impervious surfaces shall not exceed 50%. If the existing impervious surface amount is greater than 50%, you may only increase impervious surfaces by 500 square feet. Please contact the Department of Planning and Zoning at 410-638-3103 for more details.

6. Are vehicle service or fuel filling stations allowed in a water source protection district?: They are not permitted except when located within a designated Rural Village area as shown on the most recent Harford County Land Use Map, and are adjacent to a property served by a public water supply. A detailed list of prohibited uses or activities can be found in the Harford County Zoning Code.