ladwp water conservation iepr workshop august 28 2015 1
TRANSCRIPT
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LADWP WATER CONSERVATION IEPR Workshop
August 28 2015
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SB x7-7 Water Conservation Act (2009)
Mayor’s Directive #5 – GPCD – October 2014
Governor’s Executive Order B29-15 - GPCD - April 2015
Mandate Reduce by 20% by 2020
Reduce water usage 20% by 2017
Reduce total mnthly water usage by 16% through 2016
Baseline 152 GPCD 131 GPCD Total monthly water usage in baseline yr 2013
GOAL 138 GPCD by 2020
104 GPCD by 2017
16% reduction in monthly water use: June 2015 through Feb 2016
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• Behavioral changes through Education and Awareness
• Codes and Standards• Hardware programs – rebates and
incentives
Break-down of drought actions
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Water Waste
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Water Conservation Response Unit– hired more people – able to address
complaints more quickly – canvasing high usage areas
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Water conservation LA OrdinancesHigh Efficiency Plumbing Fixtures Ordinance 180822, 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
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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
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Landscape Guidelines effective 4/1/2011, implemented State Model Water Efficiency Landscape Ordinance further reducing irrigation demand.Low Impact Development Ordinance 181899 reduces storm water runoff to ocean through on site infiltration where possible.New model landscape ordinance – in effect by December 2015
Codes and Standards
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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
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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.
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SoCal WaterSmart Residential Program Highlights:
• Residential HET Toilet Replacements: • FY12/13 1,840 rebates• FY13/14 2,757 rebates• FY14/15 55,290 rebates
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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
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Customized Water Conservation Projects
Rebate pays $1.75 per 1,000 gallons of water conserved during first 2 yearsPopular Projects: • Cooling Tower Efficiency Upgrades• Recirculation projects• Recycling projects
Application and Pre-Inspection Required
Technical Assistance Program (TAP) – next frontier of water
conservation?
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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 AnnualWater Savings2.4 million gallons
Estimated AnnualLADWP Water Bill Savings$238,500 Energy Savings – seen about a 4% decrease/store in energy usage for 6 test stores
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Evaporative condenser
Evaporative Condenser
Water Evaporates
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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 $800,000LADWP Rebate$30,000Gas Company rebate$20,000Savings by decreasing water usage and sewage: $130,000/yr
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18Ceramic Filtration
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19Ceramic Filtration
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THE END!