Dominic Roques, Central Coast Regional Water Quality Control Board (moderator)
Darla Inglis, Central Coast Low Impact Development Initiative (moderator)
Cathleen Garnand, County of Santa Barbara (moderator)
Brett Hadley, Wallace Group Engineering and Design
Bianca Koenig, Wallace Group Engineering and Design
Dan Cloak, Dan Cloak Environmental Consulting
Jennifer Buchanan, Watearth
Agnes Topp, City of Santa Cruz
Neal Shapiro, City of Santa Monica
David LaCaro, City of Paso Robles
Ellen Pritchett, City of Santa Maria
Alyson Tom, County of Santa Cruz
Thomas Harty, County of Monterey
This workshop will focus on the post-construction requirements (PCRs) established by the Central Coast Regional Water Quality Control Board (Region 3). The PCRs established a tiered compliance program, based on impervious area, for 1) site design, 2) storm water runoff treatment, 3) retention, and 4) peak runoff controls. The retention requirements alone are a unique aspect of the PCRs. They establish a numeric performance standard for onsite retention of storm water runoff for storms up to the 85th percentile, or 95th percentile event, depending on the project location. This workshop will explain how the retention requirements were developed based upon watershed processes and how municipalities are currently implementing the PCRs. Current technical recommendations and key technical hurdles on storm water controls will be discussed and solutions offered, including design, construction, and long-term O&M tracking and reporting.
Moderators:
Dominic Roques, Central Coast Regional Water Quality Control Board
Darla Inglis, Central Coast Low Impact Development Initiative
Cathleen Garnand, County of Santa Barbara
8:30 - 9:00 AM
Moderator and speaker: Dominic Roques, Central Coast Regional Water Quality Control Board
1. Introduction and Overview of the Training Workshop
2. Background and Summary of the PCRs
a. The “Joint Effort”
b. Region 3 goals for maintaining and restoring watersheds
c. Development of Watershed Processes and Watershed Management Zones
d. Requirements for retention and Low Impact Development measures
3. Designing for Watershed Processes
a. How site design strategies address key components of watershed processes, and how to distinguish those strategies from conventional planning, architectural, and engineering design
b. What are the municipal requirements for approving development projects to address the “decentralized approach to stormwater management”
c. What are we learning 18 months into implementation?
9:00 - 10:55 AM (Break 10:00 – 10:15 AM)
Practical Design Approach
Moderator: Darla Inglis, Central Coast Low Impact Development Initiative
2. Current Thinking and Technical Recommendations on Retention Facilities: Jennifer Buchanan, Watearth
Including:
a. Bioretention design and plant selection resources
b. Dual-use facilities (retention and peak runoff)
c. Permeable paving
d. Underground storage
5. Alternative Compliance in the PCRs
Speakers:
David LaCaro, City of Paso Robles
Ellen Pritchett, City of Santa Maria
Agnes Topp, City of Santa Cruz
Dominic Roques, Central Coast Regional Water Quality Control Board
Darla Inglis, Central Coast Low Impact Development Initiative
a. Watershed Plans (e.g., Paso Robles, Santa Maria)
b. Urban Sustainability Areas (e.g., Cities of Santa Cruz, San Luis Obispo)
c. Other approaches
10:55 - 11:45 AM
Verifying Success
Moderator: Cathleen Garnand, County of Santa Barbara
a. Construction experience and common problems
b. Field verifications
2. How do municipalities assure long-term O&M? Local approaches on maintenance agreements, follow-up, enforcement, inspections, and tracking. Forum panel:
David LaCaro, City of Paso Robles
Ellen Pritchett, City of Santa Maria
Alyson Tom, County of Santa Cruz
Thomas Harty, County of Monterey
Cathleen Garnand, County of Santa Barbara
3. Open Discussion