1
Presentation by:
Dana Friehauf, Water Resources Manager
Water Planning Committee
May 28, 2015 Meeting
Update on Supply Conditions and
Drought Response Activities
Lake Oroville
2
LAKE
OROVILLE
SAN
LUIS
State Water Project
Lake Oroville Storage
Average (1922-1998) 2013-2014 2014-2015 (current)
Current Year
45% Capacity
Last Year
Record Low
(as of May 26, 2015)
3
LAKE
OROVILLE
SAN
LUIS
San Luis Reservoir Storage
Current Year
55% Capacity
Last Year
(as of May 26, 2015)
Average (1922-1998) 2013-2014 2014-2015 (current)
4
Eastern Sierra Snowpack Conditions
(as of March 30, 2015)
Source: City of Los Angeles Department of Water and Power
5
Temperature Outlook: Above Normal
June 2015 – August 2015
6
NOAA Climate Prediction Center
El Niño Intensifies
 By early May “weak-to-moderate” El Niño conditions were
reflected by above-average sea surface temperatures
across the equatorial Pacific
 Approximately 90% chance El Niño will continue through
summer 2015
 80% or greater chance conditions will persist through 2015
 Too early to know if strong
El Niño will develop and
last into rainy season
 Very strong El Niño could
bring substantial
precipitation
7
Implementation
SWRCB Emergency Regulations
2. Requirements for Urban Water Suppliers
 Compliance with conservation standards
 Effective June 1, 2015
 Agricultural water use exclusion requirements
 Certify commercial agricultural
 Agency establish conservation standard
 Prepare Agricultural Water Management Plan by Feb. 2016
X
 Regulations became effective May 18, 2015
1. End-user Restrictions
 Prohibitions apply immediately
 Building Standards Commission hearing
May 29 to approve regulations for irrigation
outside new homes and buildings
No irrigation of grass
medians with
potable water
8
Implementation
May 14, 2015 Board Actions
 Supply allocations
 Monthly informational tracking (July 2015 – June 2016)
 Water use compared to allocation
 Establish estimated monthly water use pattern based on
allocation and historical use
 First report to Board August 2015
 Up to 2-day/week potable watering requirement
 Gathering information on member agency actions
 Formal report to Board by July 2015
 Investigate potential demand offset framework
 Forming member agency workgroup

Update on Supply Conditions and Drought Response Activities

  • 1.
    1 Presentation by: Dana Friehauf,Water Resources Manager Water Planning Committee May 28, 2015 Meeting Update on Supply Conditions and Drought Response Activities Lake Oroville
  • 2.
    2 LAKE OROVILLE SAN LUIS State Water Project LakeOroville Storage Average (1922-1998) 2013-2014 2014-2015 (current) Current Year 45% Capacity Last Year Record Low (as of May 26, 2015)
  • 3.
    3 LAKE OROVILLE SAN LUIS San Luis ReservoirStorage Current Year 55% Capacity Last Year (as of May 26, 2015) Average (1922-1998) 2013-2014 2014-2015 (current)
  • 4.
    4 Eastern Sierra SnowpackConditions (as of March 30, 2015) Source: City of Los Angeles Department of Water and Power
  • 5.
    5 Temperature Outlook: AboveNormal June 2015 – August 2015
  • 6.
    6 NOAA Climate PredictionCenter El Niño Intensifies  By early May “weak-to-moderate” El Niño conditions were reflected by above-average sea surface temperatures across the equatorial Pacific  Approximately 90% chance El Niño will continue through summer 2015  80% or greater chance conditions will persist through 2015  Too early to know if strong El Niño will develop and last into rainy season  Very strong El Niño could bring substantial precipitation
  • 7.
    7 Implementation SWRCB Emergency Regulations 2.Requirements for Urban Water Suppliers  Compliance with conservation standards  Effective June 1, 2015  Agricultural water use exclusion requirements  Certify commercial agricultural  Agency establish conservation standard  Prepare Agricultural Water Management Plan by Feb. 2016 X  Regulations became effective May 18, 2015 1. End-user Restrictions  Prohibitions apply immediately  Building Standards Commission hearing May 29 to approve regulations for irrigation outside new homes and buildings No irrigation of grass medians with potable water
  • 8.
    8 Implementation May 14, 2015Board Actions  Supply allocations  Monthly informational tracking (July 2015 – June 2016)  Water use compared to allocation  Establish estimated monthly water use pattern based on allocation and historical use  First report to Board August 2015  Up to 2-day/week potable watering requirement  Gathering information on member agency actions  Formal report to Board by July 2015  Investigate potential demand offset framework  Forming member agency workgroup