Lime Manufacturing Monitoring Checklist ^EPA

Subpart S, Greenhouse Gas Reporting Program

What Must Be Monitored for Kilns?

If NOT using a CEMS, measure these parameters...

For determining the monthly emission factor for each type of lime produced:	

~ Calcium oxide content for each lime	~ Magnesium oxide content for each

type (metric tons CaO/metric ton	lime type (metric tons MgO/metric

lime), analyzed monthly.	ton lime), analyzed monthly.

For determining the monthly emission factor for each type of byproduct/waste sold (including lime
kiln dust):	

~ Calcium oxide content for each solid	~ Magnesium oxide content for each

lime byproduct/waste type	solid lime byproduct/waste type

(metric tons CaO/metric ton lime),	(metric tons MgO/metric ton lime),

analyzed monthly.	analyzed monthly.

For determining annual CO2 emissions from each type of byproduct/waste that is not sold
(including lime kiln dust and scrubber sludge):

~	Calcium oxide content for each unsold	~ Annual weight or mass of unsold
lime byproduct/waste type	byproducts/wastes for each lime type
(metric tons CaO/metric ton lime),	(tons).

analyzed annually.

~	Magnesium oxide content for each
unsold lime byproduct/waste type
(metric tons MgO/metric ton lime),
analyzed annually.

United States
Environmental Protection
Agency

For determining annual CO2 process emissions for all kilns:

~ Monthly weight or mass of each	~ Monthly weight or mass of

lime type produced (tons)	byproducts/waste sold (such as lime

kiln dust) for each lime type (tons)

Lime Manufacturing Monitoring Checklist
Greenhouse Gas Reporting Program

Page 1 of 2

40 CFR 98, Subpart S
February 2018


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For all kilns combined (i.e., for the whole facility):

~	Annual average emission factors for
each calcined byproduct/waste sold

~	Annual average emission factors for
each lime product type produced

~

~

in the onsite process (if applicable)

~	Beginning and end of year inventories
for each lime product

~	Beginning and end of year inventories
for lime byproducts/wastes

Annual quantity (tons) of lime
product sold

Annual amount of CO2 captured for use

~	Annual average results of chemical
composition analysis of each type of
lime product produced and calcined
byproduct/waste sold

~	Annual lime production capacity (tons)

If using a CEMS:

In addition to the monitoring requirements under 40 CFR subpart C for the
Tier 4 Calculation Methodology, measure these parameters for each kiln...

~ Annual amount of lime product sold, by ~
type (tons)

Annual amount of lime product not sold,
by type (tons)

~	Annual amount of lime byproduct/waste ~
sold, by type (tons)

~	Annual amount of lime byproduct/waste ~
not sold, by type (tons)

Beginning and end of year inventories
for each lime product

Beginning and end of year inventories
for lime byproducts/wastes

See also the information sheet for Lime Manufacturing at:
https://www.epa.gov/ghgreporting/subpart-s-information-sheet.

This document is provided solely for in formational purposes. It does not provide legal advice, have
legally binding effect, or expressly or implicitly create, expand, or limit any legal rights, obligations,
responsibilities, expectations, or bene fits in regard to any person. This information is intended to assist
reporting facilities/owners in understanding key provisions of the Greenhouse Gas Reporting Program.

Lime Manufacturing Monitoring Checklist
Greenhouse Gas Reporting Program

Page 2 of 2

40 CFR 98, Subpart S
February 2018


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