and development projects with permits issued on or after February 26
will be subject to new state-mandated storm water management
Likely the most significant
change for PDS customers: New projects Ė residential,
commercial, or industrial Ė proposing more than 10,000 square feet of
cumulative impervious surface will require a Storm Water Quality
Management Plan (SWQMP) submittal including a hydromodification
analysis and structural Best Management Practice (BMP) design.
Any ground area covered by an impervious surface, such as a building
roof, driveway, or paved walkway, will count toward the siteís
The following forms and guidance
documents are among the County resources available for applicants to
incorporate complete storm water plans and information into their
Storm Water Intake Form:
Determines whether a project requires a Standard SWQMP or Priority
Development Project (PDP) SWQMP. To identify the applicable
storm water requirements as early in the permit process as possible,
PDS Building will require completion of this form before formal
submittal of construction plans.
PDP SWQMP: Template for SWQMP
required for projects classified as a PDP.
Standard SWQMP: SWQMP required
for all projects not classified as a PDP.
BMP Design Manual: Provides
guidance and specifies procedures for planning, preliminary
consideration, selection, and design of permanent storm water BMPs
based on the updated state performance standards.