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# REGULATION FOR THE MANDATORY REPORTING OF GREENHOUSE GAS EMISSIONS - page 67 / 137

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• (c)

Calculation of Fugitive Emissions. The operator shall calculate and report fugitive emissions as specified below.

• (1)

Wastewater Treatment – CH4 and N2O

(A) The operator shall calculate and report methane emissions from wastewater treatment as shown below:

## CH4 = [(Q * CODqave) – S] * B * MCF * 0.001

Where: CH4 = emission of methane (tonnes/yr) Q = volume of wastewater treated (m3/yr) CODqave = average of quarterly determinations of chemical oxygen demand of the wastewater (kg/m3) S = organic component removed as sludge (kg COD/yr) B = methane generation capacity (B = 0.25 kg CH4/kg COD) MCF = methane conversion factor for anaerobic decay (0-1.0) consult Table 12 in Appendix A 0.001 = conversion factor – kg to metric tonnes

(B) The operator shall calculate and report nitrous oxide emissions from wastewater treatment as shown below:

# Where:

N2O = emissions of N2O (metric tonnes/yr) Q = volume of wastewater treated (m3/yr)

= average of quarterly determinations of N in effluent (kg N q a v e N / m 3 ) EFN2O = emission factor for N2O from discharged wastewater

• (0.005

kg N2O-N/kg N)

• 1.571

= conversion factor – kg N2O-N to kg N2O

• 0.001

= conversion factor – kg to metric tonnes

(2)

Oil-Water Separators – The operator shall calculate and report emissions from oil-water separators as shown below.

CH4 = EFsep * Vwater * CFNMHC

• *

0.001

# Where:

CH EF = emission of methane (tonnes/yr) s e p = N M H C ( n o n m e t h a n e h y d r o c a r b o n ) e m i s s i o n f a c 4 t o r ( k g / m 3 ) s e e T a b l e 1 3 i n A p p e n d i x A . = v o l u m e o f w a s t e w a t e r t r e a t e d b y t h e s e p a r a t o r ( m 3 / y r ) Vwater

67

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