LA’s Water Resource Future - Workshop 2: Understanding Local Groundwater Storage Potential

LA’s Water Resource Future - Workshop 2: Understanding Local Groundwater Storage Potential
Wednesday, June 15, 2016 - 9:00am - 4:30pm
9:00 am
4:30 pm
UCLA Center for Climate Change Solutions, The Luskin Center for Innovation, UCLA Institute of the Environment and Sustainability, UCLA Water Resources Group AND UCLA Sustainable LA Grand Challenge
UCLA Luskin School of Public Affairs, Room 2355
337 Charles E Young Drive East
Los Angeles 90095
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Date: 
Wed, 06/15/2016 - 9:00am - 4:30pm
Presented By: 
UCLA Center for Climate Change Solutions, The Luskin Center for Innovation, UCLA Institute of the Environment and Sustainability, UCLA Water Resources Group AND UCLA Sustainable LA Grand Challenge

Location

UCLA Luskin School of Public Affairs, Room 2355
337 Charles E Young Drive East
Los Angeles 90095
United States

This workshop is open to the public, but space is limited.

This workshop is open to the public, but space is limited. To RSVP, contact Nikki Parrish, Program Administrator, UCLA Sustainable LA Grand Challenge.

The goal of the LA's Water Resource Future series is to bring together researchers, water resource managers, and other stakeholders to investigate the question: How much stormwater can Los Angeles County capture and store as groundwater by 2050 and beyond, given climate change, water quality concerns, ecosystem concerns, and economic and policy constraints? This discussion will inform the implementation of the UCLA Sustainable LA Grand Challenge Work Plan by identifying stakeholder information needs, research capabilities and gaps, and opportunities for collaboration.

This workshop is the second in a two-part series. The first, Understanding Local Stormwater Capture Potential, explored recent stormwater capture planning efforts and the modeling tools used therein; how to achieve integrated climate, surface hydrology, and groundwater modeling; ecosystem considerations in stormwater capture; and policy barriers to increased capture and potential solutions. 

We are now undertaking a research effort to couple existing stormwater capture and groundwater models to get a better grasp of the quantities of captured stormwater that infiltrates to groundwater for projects that don’t go into a spreading ground through a pipe.

This second workshop will focus on current and future groundwater basin conditions, management, and rights in the groundwater basins serving Los Angeles County. The aims are to better understand:

  • How the basins were adjudicated, how they are currently managed, how ownership rights have changed since adjudication, how replenishment through spreading grounds is now financed, and the implications for efforts to increase stormwater capture and infiltration
  • The current state of knowledge of hydrogeology in the region, how sea level rise due to climate change is expected to affect the groundwater basins serving LA County, and the implications for efforts to increase stormwater capture and infiltration
  • From groundwater managers’ and stormwater capture agencies’ perspective, what the challenges are for incentivizing infiltration of urban stormwater runoff, and what information is needed to value infiltrated stormwater in groundwater

 

 

PROGRAM

9:00 AM - 9:15 AM - Welcome and Opening Remarks

Casandra Rauser, Director, Sustainable LA Grand Challenge

Madelyn Glickfeld, Director UCLA Water Resources Group

9:15 AM - 10:30 AM - Session 1 

Water rights in adjudicated and unadjudicated basins in the Los Angeles County: History, current status, implications for stormwater capture and storage, and legal solutions

  • How were the groundwater basins in Los Angeles County adjudicated?
  • Who has the right to store and extract groundwater in each basin in the region?
  • How have those rights changed over time?
  • How does this relate to the incredibly complex array of water entities who deliver water in the LA Basin?
  • Are governance arrangements adequate for non–rights holders to obtain storage and extraction rights for water captured through new stormwater projects?
  • What legal or administrative changes to adjudications or other institutional agreements would need to happen to give value to stormwater replenishment projects?

Moderator:  J.R. DeShazo, Professor and Director, Luskin Center for Innovation

[20 minutes] Presentation by William Blomquist, Indiana University
History of basin adjudication in Southern California

[20 minutes] Presentation by Stephanie Pincetl, Professor and Director, UCLA California Center for Sustainable Communities
The evolution of water rights holders in the adjudicated basins, discussion of the implications of these rights for increased stormwater storage in these areas.

[20 minutes] Alf Brandt, Senior Counsel, Office of CA State Assembly Speaker Rendon
Increasing incentives for stormwater capture and storage in adjudicated basins. 

[20 minutes] Eric L. Garner, Partner Best, Best and Kreiger
Increasing stormwater incentives for non–rights holders in adjudicated basins, and in unadjudicated basins subject to SGMA:  What are the legal avenues for stormwater agencies and groundwater basin managers to do this?

[15 minutes] Audience Q&A

BREAK: 10:30 AM - 10:45 AM

10:45 AM - 12:15 PM - Session 2

The current physical state and management of LA County's major groundwater basins:

  • How much storage capacity do these groundwater basins have?
  • How much of this capacity is not currently used, representing extra storage potential for captured stormwater?
  • Where does hydrogeology make increased infiltration/injection of stormwater to groundwater basins feasible?
  • Which basins have pollution issues, and how is this accounted for in management of the basin?
  • What are current arrangements for compensating entities supplying groundwater replenishment including reclaimed and imported water?

Moderator, Erik Porse, Post Doctoral Researcher UCLA California Center for Sustainable Communities

[20 minutes] Ted Johnson, Hydrogeologist, Water Replenishment District of Southern California, Central and West Coast Basins

[20 minutes] Richard Slade, Watermaster, Upper Los Angeles River Area
Basin (ULARA)

[20 minutes] Steven Johnson or Kevin Smead, Stetson Engineers, San Gabriel and Raymond Basin

[15 minutes] Greg Reed, Water Resources, Los Angeles Department of Water and Power will discuss the status of unadjudicated basins in Los Angeles County under SGMA and who is involved in responded to SGMA for those basins 

[15 minutes] Audience Q&A

LUNCH: 12:15 PM - 1:30 PM

1:30 PM - 2:40 PM - Session 3

Climate change and the Potential Impact of Sea Level Rise on Coastal Groundwater Basins:

  • Which groundwater basins are vulnerable to sea level rise with climate change?  
  • Can we model the extent of intrusion? Will the existing salt water intrusion barriers work to stem the impacts of sea level on saltwater intrusion?  
  • Are new saltwater intrusion barriers going to be needed or feasible?  

Moderator, Alex Hall, Professor and Director UCLA Center for Climate Change Solutions

Current Management of the Seawater Intrusion Barriers:

[15 minutes]  Eric Batman, Los Angeles County Department of Public Works

[15 minutes] Ted Johnson, Southern California Water Replenishment District

Projecting the impact of sea level rise on coastal groundwater basins: 

[20 minutes]  Tracy Nishikawa, USGS Water Science Center – How can we estimate how projected sea level rise will affect the coastal groundwater basins and the salt water intrusion barriers? 

Audience Q&A 15 minutes

BREAK:  2:40 - 2:55

2:55 PM - 4:15 PM   Session 4:

Increasing Conjunctive Use and Storage through More Stormwater Capture: Moderated Panel and Audience Discussions

  • What would make a coupled stormwater and groundwater model useful to you in determining the water supply quantification of any given stormwater capture project?
  • How can we improve the incentives for stormwater capture and storage in groundwater basins?
  • Could storage and extraction rights be granted to those who do projects to infiltrate water? Or, are there easier or better ways to do this?
  • What are the concerns about stormwater infiltration into groundwater? Is there a maximum that can be infiltrated and a maximum that can be drawn out?
  • What are the legal and physical basin constraints to allowing additional stormwater project infiltration to be extracted?

Moderator, Madelyn Glickfeld, Director, UCLA Water Resources Group

  • Angela George,  Los Angeles County Flood Control District  
  • Richard Slade, Watermaster Upper Los Angeles River Area Basin 
  • Rafael Villegas, Los  Angeles Department of Water and Power 
  • Robb Whitaker, General Manager Water Replenishment District of Southern California, Staff for Central and West Basin Watermaster 
  • Tony Zampiello, Watermaster, Raymond and Main San Gabriel Basin 
  • Debra Man (invited), Metropolitan Water District of Southern California
  • Alf Brandt, Senior Counsel, Office of CA State Assembly Speaker Rendon
  • Eric Garner, Partner Best, Best and Kreiger

4:15 PM - 4:30 PM

Summary and Next Steps