Embed Size (px)
Citation preview
CalLite Comparison of Water Supply
and Delta Outflow under
Three Regulatory Environments:
D-1485, D-1641, and Biological Opinions
Holly Canada, E.I.T.
Engineer, Water Resources
CA Department of Water Resources
CWEMF
April 22nd, 2013
Outline
Delta Regulations Background
CalLite GUI v3.0 Update: D-1485
CalLite Model Assumptions
CalLite Model Results
2
Background: D-1485 Regulations
Issued in 1978
Underlying principle:
“Water quality in the Delta should be at least as good as those levels
which would have been available had the state and federal projects
not been constructed”
Protected beneficial uses of water: Delta and Suisun Marsh
But not in the Southern Delta
No priority of burden between CVP and SWP
Racanelli Decision (1986) overturned
7
Current Delta Regulations
D-1641 (issued in 1999)
Current Delta regulation
Allocated responsibility for implementing 1995 WQCP
Biological Opinion Reasonable and Prudent Alternatives
(BO RPAs):
U.S. Fish and Wildlife Service Operational Criteria and Plan
(OCAP) Delta Smelt BO (issued December 2008)
National Marine Fisheries Service OCAP Salmonids BO (issued
June 2009)
8
Why is modeling D-1485
regulations important today?
Understanding previous conditions
(b)(2) accounting
(D-1641 water costs) – (D-1485 water costs)
Coordinated Operations Agreement (COA) or
Re-Operation Investigations
9
CalLite GUI v3.0: Regulations Update
Addition of D-1485 Regulations
“Quick-Select” Regulation Tab
10
CalLite v2.0 (current)
11
CalLite v3.0 (under development)
12
13
CalLite v3.0 (under development)
CalLite v2.0 (current)
14
15
CalLite v3.0 (under development)
D-1485 D-1641 D-1641 + BO RPAs
VAMP OFF South Delta export limits Apr
15th – May 15th
South Delta export limits Apr
15th – May 15th
Delta Cross
Channel
*Closed Jan-Apr 15th
*Closed 20 days in Apr
16th-May 31st when
NDOI > 12,000 cfs
*Closed 45 days Nov-Jan.
*Closed Feb-May.
*Closed 14 days June.
*Closed 45 days Nov-Jan.
*Closed Feb-May.
*Closed 14 days June.
*Conditional closure Oct - Jan
(NMFS BO Action IV 1.2)
Exports 3,000 cfs in May/June 35% Feb-Jun, 65% Jul-Jan 35% Feb-Jun, 65% Jul-Jan
Delta Outflow
and Riovista
Requirements
*D-1485 standard:
varies by month
*D-1641 standard: varies by
month
*X2 requirement
*Roe Trigger standard
*D-1641 standard: varies by
month
*X2 requirement
*Roe Trigger standard
*FWS BO Action 4
Salinity
Requirements
Emmaton, Jersey Point,
Rock Slough,
Collinsville, Antioch,
and Chipps Island.
Emmaton, Jersey Point, Rock
Slough, and Collinsville.
Emmaton, Jersey Point,
Rock Slough, and Collinsville.
JPOD OFF On On
Intertie + CV
Wheeling On On On
21
Model Assumptions
22
23
24
25
26
28
Level of
Development Regulation
Trinity Minimum
Flows Export Demands
Scenario 1
Current
D-1485 Lower SWP: 1980’s variable
CVP: full contract Scenario 2 D-1485 Higher
Scenario 3 D-1641 Higher
SWP: 2000’s variable
CVP: full contract Scenario 4 D-1641 + (b)(2) Higher
Scenario 5 D-1641 + (b)(2) + BOs Higher
Scenario 6
Future (2030)
D-1485 Lower
SWP: full Table A
CVP: full contract
Scenario 7 D-1485 Higher
Scenario 8 D-1641 Higher
Scenario 9 D-1641 + (b)(2) Higher
Scenario 10 D-1641 + (b)(2) + BOs Higher
Model Assumptions
Long-Term Current LOD
29
Long-Term Future LOD
30
31
32
