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Q593. Under §98.232(e), emissions from flares are not a required source for calculation and reporting. Under section §98.233(o)(9), however, emissions from flares associated with centrifugal compressors must be reported. There are multiple cases throughout Subpart W where these confusions exist (i.e. section §98.233(k)(4), which is specific to the transmission compression industry segment). Please clarify which section of the rule is the correct guiding action.
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A593.

...

Under

...

§98.232(e),

...

emissions

...

from

...

flare

...

stacks

...

are

...

not

...

required

...

to

...

be

...

reported

...

as

...

a

...

separate

...

emission

...

source

...

for

...

onshore

...

natural

...

gas

...

transmission

...

compression

...

facilities.

...

However,

...

this

...

does

...

not

...

exclude

...

the

...

reporting

...

of

...

flared

...

emissions

...

from

...

the

...

other

...

emission

...

sources

...

listed

...

in

...

§98.232(e)

...

if

...

they

...

are

...

routed

...

to

...

a

...

flare.

...

The

...

flare

...

source

...

type

...

in

...

§98.233

...

(n)

...

covers

...

only

...

emissions

...

that

...

are

...

not

...

reported

...

in

...

association

...

with

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any

...

of

...

the

...

other

...

source

...

types

...

in

...

§98.233;

...

see

...

§98.233

...

(n)(10).

...

For

...

example,

...

if

...

transmission

...

storage

...

tank

...

emissions

...

are

...

going

...

to

...

a

...

flare,

...

then

...

the

...

rule

...

requires

...

the

...

adjustment

...

of

...

transmission

...

storage

...

tank

...

emissions

...

sent

...

to

...

flare

...

per

...

§98.233(k)(4).

...

The

...

flared

...

transmission

...

storage

...

tank

...

emissions,

...

however,

...

have

...

to

...

be

...

reported

...

as

...

transmission

...

storage

...

tank

...

emissions

...

under

...

§98.236(c)(9).

...

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Updated

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Source: EPA, Frequently Asked Questions, Petroleum and Natural Gas Systems, July 2011, [http://www.epa.gov/climatechange/emissions/downloads11/documents/Subpart-W-additional-faq.pdf].  Modified per M. Eaddy 7/26/2012

Approval / Publishing History: Version 2

Expiration : none

Relevant Subpart: W, Flaring
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