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B2. Potable Water
<br />Emissions of methane from potable water treatment and transportation for domestic use are calculated using the following equation:
<br />-1
<br />Y = (U)*(E)*(C)
<br />AA
<br />Y = annual emissions of methane from electricity used for potable water treatment and transportation, tons/yr.
<br />A
<br />U = annual electricity usage for potable water treatment and transportation, MWh/yr.
<br />A
<br />E = emission factor for electricity usage, 0.0067 lbs/MWh (California Climate Action Registry General Reporting Protocol, Version 2.2, Part III,
<br />Chapter 6, 2007).
<br />C = conversion factor from lbs to tons, 2,000 lbs/ton.
<br />V, MG/yr/
<br />unit typeunit numberunit *MWh/MGUA, MWH/yrE, lbs/MWhC, lbs/ton
<br />Unit TypeY, tons/yr
<br />A
<br />Residentialhousehold335.008.5590E+010.01020292.460.00672,0000.0009797
<br />Residentialhousehold3740.009.5557E+020.0102036,453.080.00672,0000.1221178
<br />Food Storesq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Restaurant
<br />sq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Hospitalssq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Retailsq ft387000.009.6190E+010.01020379,700.410.00672,0001.2719964
<br />Commercial
<br />sq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />College/Universitysq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />High schoolsq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Elementary School
<br />sq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Officesq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Hotel/Motelsq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Warehousesq ft0.000.0000E+000.010200.000.00672,0000.0000000
<br />Miscellaneoussq ft680000.000.0000E+000.010200.000.00672,0000.0000000
<br />Total, tons/yr1.3950939
<br />*V = annual water usage per unite based on daily water usage per land use type
<br />B3. Solid Waste
<br />B3a. Fugitive Emissions
<br />Emissions of methane from solid waste disposal treatment are calculated using the following equation:
<br />Y = (P)*(E)
<br />AA
<br />Y = annual emissions of methane from solid waste disposal treatment, tons/yr.
<br />A
<br />P = annual waste production for disposal treatment, tons/yr.
<br />A
<br />E = emission factor for waste production, 0.0045 tons/ton (Los Angeles County, Engineering Data).
<br />Q, tons/yr
<br />/
<br />unit *Unit TypeUnit numberE, tons/ton
<br />Unit TypeP, tons/yrY, tons/yr
<br />AA
<br />Residential0.8700household4,0753,545.250.004515.95
<br />Food Storesq ft0
<br />0.00000.000.00450.00
<br />sq ft0
<br />Restaurant0.00000.000.00450.00
<br />Hospitals0.0000sq ft00.000.00450.00
<br />Retailsq ft387,000
<br />0.0004154.800.00450.70
<br />sq ft0
<br />Commercial0.00040.000.00450.00
<br />College/University0.0000sq ft00.000.00450.00
<br />High schoolsq ft0
<br />0.00000.000.00450.00
<br />sq ft0
<br />Elementary School0.00000.000.00450.00
<br />Office0.0000sq ft00.000.00450.00
<br />Hotel/Motel0.280000.000.00450.00
<br />room
<br />Warehouse0.000000.000.00450.00
<br />sq ft
<br />sq ft
<br />Miscellaneous0.000000.000.00450.00
<br />Total, tons/yr16.65
<br />* Q = annual waste production per in tons/unit/year
<br />Page 7 of 13
<br />B3b. Exhaust Emissions (Hauling Trucks)
<br />Emissions of methane from solid waste transportation are calculated using the following equations:
<br />-1-1-1-1
<br />Y = (P)*(d)*(Ca)*(M)*(E)*(C)*(C)
<br />AA12
<br />Y = annual emissions of methane from solid waste transportation, tons/yr.
<br />A
<br />P = annual waste production for disposal treatment, tons/yr (see B3a. Fugitive Emissions).
<br />A
<br />d = solid waste density, 0.0365 tons/cuyd (California Integrated Waste Management Board).
<br />Ca = truck load capacity, 20 cuyd/trip.
<br />M = average trip mileage
<br />E = emission factor for hauling trucks, 0.2012 gr/mile (USEPA Direct Emissions from Mobile Combustion Sources, Climate Leaders, 2004).
<br />C = conversion factor from gr to lbs, 453.59 gr/lbs.
<br />1
<br />C = conversion factor from lbs to tons, 2,000 lbs/ton.
<br />2
<br />Unit TypeP, tons/yrd, tons/cuydCa, cuyd/tripM, miles/trip *E, gr/mile **C, gr/lbsC, gr/tonsY, tons/yr
<br />A12A
<br />3,545.2
<br />Residential50.0365202.300.20120453.592,0002.4773E-03
<br />Food Store0.000.0365202.300.20120453.592,0000.0000E+00
<br />Restaurant0.00
<br />0.0365202.300.20120453.592,0000.0000E+00
<br />0.00
<br />Hospitals0.0365202.300.20120453.592,0000.0000E+00
<br />Retail154.800.0365202.300.20120453.592,0001.0817E-04
<br />Commercial0.00
<br />0.0365202.300.20120453.592,0000.0000E+00
<br />0.00
<br />College/University0.0365202.300.20120453.592,0000.0000E+00
<br />High school0.000.0365202.300.20120453.592,0000.0000E+00
<br />0.0365202.300.20120453.592,0000.0000E+00
<br />Elementary School0.00
<br />Office0.00
<br />0.0365202.300.20120453.592,0000.0000E+00
<br />Hotel/Motel0.000.0365202.300.20120453.592,0000.0000E+00
<br />Warehouse0.0365202.300.20120453.592,0000.0000E+00
<br />0.00
<br />0.000.0365202.300.20120453.592,0000.0000E+00
<br />Miscellaneous
<br />Total, tons/yr2.59E-03
<br />* M = average trip mileage based on the average round trip distance from the three nearest disposal facilities of 31.83 miles (Antelope Valley
<br />Recycling and Disposal Facility/Waste Management, Inc., 35.43 miles; Chiquita Canyon Landfill/Consolidated Disposal Service, 8.55 miles;
<br />Lancaster Landfill/Waste Management, Inc., 31.83 miles).
<br />B3c. Exhaust Emissions (Disposal Equipment)
<br />Emissions of methane from solid waste disposal are calculated using the following equations:
<br />-1
<br />Y = (E)*(h)*(n)*(C)
<br />A
<br />Y = annual emissions of methane from solid waste disposal, tons/yr.
<br />A
<br />E = emission factor for disposal equipment, lbs/hr (SCAQMD Off-Road Mobile Source Emission Factors, 2007).
<br />h = operating hours per day, 2 hrs/day.
<br />n = days per year, 365 days/yr.
<br />C = conversion factor from lbs to tons, 2,000 lbs/ton.
<br />E, lbs/hr *h, hrs/day **n, days/yrC, lbs/tons
<br />Vehicle TypeY, tons/yr
<br />AWE
<br />Excavator0.169523652,0000.06
<br />Grader0.193623652,0000.07
<br />Off-Highway Tractor0.257823652,0000.09
<br />Off-Highway Truck0.273023652,0000.10
<br />Total, tons/yr0.32
<br />* E = emission factor for disposal equipment based on the composite reactive organic gas emission factor for each vehicle type.
<br />** h = operating hours per day (and vehicle fleet) are based on typical operating time (and vehicle fleet) necessary to dispose 5.11 tons of solid
<br />waste per day.
<br />Page 8 of 13
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