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Storm Drain System Master Plan

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PART 2 AND COMPLETION OF THE STORM DRAIN SYSTEM MASTER PLAN UPDATE:

Part 2 and completion of the Storm Drain System Master Plan Update was accepted during the months of April and May in 2026 and is linked below:

60 days after the resolution was adopted, the updated Storm Drainage Impact Fees went into effect June 6, 2026.

PART 1 OF THE STORM DRAIN SYSTEM MASTER PLAN UPDATE:

Part 1 of the Storm Drain System Master Plan Update was accepted on October 15, 2024 and is linked below:

COMMUNITY MEETING #2 to review the:

Storm Water Master Plan Update and Storm Water Alternative Improvement Map (SWAIM)

COMPLETED: April 26, 2023

The Storm Water Alternatives Improvement Map proposes to upgrade or expand existing City facilitates to accommodate specific design storm flows and may include the following categories of Best Management Practices (BMP)

  • Infiltration Galleries
  • Diversion Systems
  • Capture and re-use
  • Bio-filtration
  • Street curb extensions
  • Permeable pavements
  • Detention/Retention facilities
  • Park/City Facility Retrofits
  • Proprietary Capture and Treatment Systems

Residents and Business owners are encouraged to review the Community Meeting #2 power point presentation and proposed storm water improvements:

COMMUNITY MEETING #1 to review the:

 Existing Conditions Assessment Report

COMPLETED: June 16, 2022

The Existing Conditions Assessment Report (ECAR) provides detailed information about:

  • The existing condition of the City’s storm drain systems as they operate today.
  • How existing storm drain systems are modeled and analyzed.
  • How the City has begun to prioritize future storm drain projects throughout the City.

Residents and Business owners are encouraged to review the Community Meeting #1 power point presentation and DRAFT Existing Conditions Assessment Report (ECAR):

CONTACT: STORM@costamesaca.gov