LADWP WATER CONSERVATION IEPR Workshop August

SB x7-7 Water Conservati on Act (2009) Mayor’s Directive #5 – GPCD – October 2014 Governor’s Executive Order B GPCD - April 2015 MandateReduce by 20% by 2020 Reduce water usage 20% by 2017 Reduce total mnthly water usage by 16% through 2016 Baseline152 GPCD131 GPCDTotal monthly water usage in baseline yr 2013 GOAL138 GPCD by GPCD by % reduction in monthly water use: June 2015 through Feb 2016

3 Behavioral changes through Education and Awareness Codes and Standards Hardware programs – rebates and incentives Break-down of drought actions

Water Waste

Water Conservation Response Unit– hired more people – able to address complaints more quickly – canvasing high usage areas

6 Water conservation LA Ordinances High Efficiency Plumbing Fixtures Ordinance , effective 12/1/2009 mandating 1.28 GPF WC, 1 pint urinals, 2 gpm shower heads, reduced flow lavatory faucets, 5.5 cycles of concentration for cooling towers, prohibited single pass cooling systems and mandated energy star listed residential dishwashers. Codes and Standards

7 Construction techniques to be mandated for new construction on or before the next adopted edition of California Plumbing Code. Specify hot water delivery time, Tightening landscape irrigation allowances Mandates for dual waste water collection of Gray W increasing use municipally distributed Reclaimed/Recycled Water, Mandating water submeters for outdoor use and for 3 story or less multi-family residential buildings, mandate of residential swimming pool covers. Codes and Standards

8 Landscape Guidelines effective 4/1/2011, implemented State Model Water Efficiency Landscape Ordinance further reducing irrigation demand. Low Impact Development Ordinance reduces storm water runoff to ocean through on site infiltration where possible. New model landscape ordinance – in effect by December 2015 Codes and Standards

9 SoCal WaterSmart Commercial Highlights: Multifamily HETs and Premium HETs: FY 12/13 49,705 rebates FY 13/14 87,906 rebates FY 14/15 86,890 rebates Break-down of drought actions

10 SoCal WaterSmart Commercial Program Highlights: Commercial Turf Replacement: FY12/13 398,090 sq ft FY13/14 145,766 sq ft FY14/15 1,551,882 sq. ft.

11 SoCal WaterSmart Residential Program Highlights: Residential HET Toilet Replacements: FY12/13 1,840 rebates FY13/14 2,757 rebates FY14/15 55,290 rebates

12 SoCal WaterSmart Residential Program Highlights: Residential Turf Replacement: FY12/13 140,401 sq ft FY13/14 1,765,704 sq ft FY14/15 7,606,840 sq. ft. Break-down of drought actions

Customized Water Conservation Projects Rebate pays $1.75 per 1,000 gallons of water conserved during first 2 years Popular Projects: Cooling Tower Efficiency Upgrades Recirculation projects Recycling projects Application and Pre-Inspection Required Technical Assistance Program (TAP) – next frontier of water conservation?

LADWP Business Customer 55 facilities Fully Automated Water Treatment LADWP Water Conservation Staff Approved a $140,000 incentive based on the installation for all 55 facilities for equipment which enables acid treatment Rebated $3,000/store from SoCal Water Smart for pH/Conductivity controller So far have also seen energy savings (in 6 original pilot facilities) TAP Customer Success! Cooling Tower Project Example Total Project Cost $305,000 Total LADWP Rebate $140,000 Total MWD Rebate $165,000 Estimated Annual Water Savings 2.4 million gallons Estimated Annual LADWP Water Bill Savings $238,500 Energy Savings – seen about a 4% decrease/store in energy usage for 6 test stores

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16 Evaporative condenser Evaporative Condenser Water Evaporates

17 Industrial Launderer: $800,000 - $30,000 (LADWP rebate) - $20,000/yr. (Gas Company rebate - $130,000/yr from water, sewage, and gas costs. Payback is 5.8 years TAP Customer Success! Reusing wastewater in industrial laundry Total Project Cost $800,000 LADWP Rebate $30,000 Gas Company rebate $20,000 Savings by decreasing water usage and sewage: $130,000/yr

18 Ceramic Filtration

19 Ceramic Filtration

20 THE END!