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On July 13, 2013, the Central Coast Regional Water Quality Control Board adopted Post-Construction Storm Water Management Requirements (PDF) (Resolution R3-20132-0032025).

Post-Construction Storm Water Compliance

The Central Coast Regional Water Quality Control Board recognizes that it is necessary to protect watershed processes so that beneficial uses of receiving waters are maintained and, where applicable, restored. The primary objective of these Post -Construction Stormwater Management Requirements is to ensure reduction of pollutant discharges to the Maximum Extent Practicable and preventing stormwater discharges from causing or contributing to a violation of receiving water quality standards in all applicable development projects that require approvals and/ or permits issued under the planning, building or other comparable authority. To address the impacts of development on water quality, the National Pollutant Discharge Elimination System (NPDES) Small Municipal Separate Storm Sewer System (MS4) General Permit requires the City of Santa Maria to develop and implement a Guidance Document that includes specific program management elements.

Regulated Projects

Regulated Projects include all New Development or Redevelopment projects that create and/or replace ≥ 2,500 square feet of impervious surface (collectively over the entire project site).

If the project is considered a regulated project, the project will be required to at least meet Tier I requirements. Many regulated projects are required to meet additional performance requirements. To determine if the project must meet additional requirements, you must determine the Net Impervious Area. The Santa Barbara County Stormwater Technical Guide provides an overview of the four Tier requirements.

County of Santa Barbara Guide to Low Impact Development (LID)

All projects will also be required to complete a Stormwater Control Plan (SWCP or SCP), using the provided templates below.

Stormwater Control Plan Template – Tier 1 Projects

Stormwater Control Plan Template – Tier 2, Tier 3, and Tier 4 Projects

For more information about the process to implement post-construction requirements on your project in the City of Santa Maria contact the Department of Public Works Engineering Division at (805) 925-0951 ext. 2225.

Non-Regulated Projects

Non-regulated project types can be found in Resolution Number R3- 2013- 0032 (PDF), Section B. Post - Construction Requirements subsection 1b. Typically, maintenance and utility projects are considered non-regulated projects under post-construction requirements as specified by the Regional Board.

Examples of non-regulated maintenance projects include routine overlays and slurry seals. Some examples of non-regulated utility projects include:

  • Installation of an ADA ramp.
  • Solar panels on rooftops.
  • Repairs of roads and aerial utilities.

If the project meets the criteria to be considered non-regulated, project applicants are still encouraged to implement best management practices that will reduce stormwater impacts associated with their proposed development.