Central Coast Post-Construction Stormwater Requirements

Resolution R3-2013-0032 Adopted July 12, 2013, Approving Post-Construction Stormwater Management Requirements for Development Projects in the Central Coast

85th and 95th Percentile Rainfall Depths

The Central Coast Post-Construction Requirements stipulate that municipalities must require Regulated Projects to use rainfall statistics provided by the Central Coast Water Board or to calculate site-specific rainfall depths determined from local rainfall data using USEPA’s methodology (see Post-Construction Requirements Provision B.4.c). 

Rainfall Statistics Provided by the Central Coast Water Board:

Directions for Using Local Rainfall Data to Develop Site-Specific Rainfall Depths:

Watershed Management Zones and Spatial Data Coverages

The following spatial data coverages are available, grouped by County:
  • Watershed Management Zones
  • Physical Landscape Zones
  • Receiving Water Type
  • Groundwater Basins
  • Geology
  • Urban Nodes
  • Hydrologic Soil Groups

Shapefile Descriptions

Download these coverages by clicking on the County name below. 
NOTE: Download times may be lengthy, depending on connection speeds; GIS Software is required to open files once downloaded to your computer system.

Implementation of Post-Construction Stormwater Requirements

Annual Reporting

Technical Support for LID Implementation:

To Support Integration of Post-Construction Requirements into Municipal Requirements:

Municipal Regulatory Update Training:

Webinar training series for the Municipal Regulatory Update Program (MRUAP) to aid local governments with review, revision, and presentation of new and amended regulatory language for LID.

To view the PowerPoint presentations used in the webinar, please click the links below:

To download PowerPoint and webinar video files, please visit AHBL's FTP site.

Login using the following account (note, both the Username and Password are case sensitive).

  • Username: MRUAP
  • Password: MRUAP!

Gap Analysis Templates for Identifying Where Changes to Municipal Code are Needed to Promote LID:

Development of the Central Coast’s Post-Construction Stormwater Requirements:

Additional Internet Resources: