Frederick County Unincorporated, Virginia · General provision
§ 165-201.09
Extracted standards
4 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Other
- Storm drainage conveyance design storm (controlled spillway)100 year
Conveyance systems for such developments shall be designed to convey a storm with a one-hundred-year frequency within a controlled spillway.
- Storm drainage conveyance design storm (no surcharging)10 year
Storm drainage conveyance systems for developments requiring site plan approval shall be designed to convey a storm with a ten-year frequency without surcharging inlets.
- Maximum runoff rate compared to predevelopment
no greater rate of runoff from the site is permitted than that occurring prior to development for storms with a two-, ten- and twenty-five-year frequency.
- Stormwater storage design storm25 year
a stormwater storage system shall be provided to accommodate a postdevelopment storm with a twenty-five-year, twenty-four-hour frequency
From the ordinance
All developments requiring site plan approval shall limit the rate of stormwater runoff so that no greater rate of runoff from the site is permitted than that occurring prior to development for storms with a two-, ten- and twenty-five-year frequency.