GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):73,525.6
CO2 equivalent emissions from supplier subparts LL-QQ (metric tons):
Biogenic CO2 emissions from facility subparts C-II, SS, and TT (metric tons):0
Cogeneration Unit Emissions Indicator:N
GHG Report Start Date:2020-01-01
GHG Report End Date:2020-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:N
Primary NAICS Code:325193
Second Primary NAICS Code:

Parent Company Details:

Parent Company Name:HIGHWATER ETHANOL LLC
Address:24500 US Highway 14, Lamberton, MN 56152
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	73,450 (Metric Tons)
Own Result?

Gas Name	Biogenic Carbon dioxide
Gas Quantity	0 (Metric Tons)
Own Result?

Gas Name	Methane
Gas Quantity	1.38 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.138 (Metric Tons)
Own Result?

Unit Details:

Unit Name : GP-SV004
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Small Unit Aggregation Details:
Use Ivt Indicator: N
Highest Maximum Rated Heat Input Capacity: 160
Cumulative Maximum Rated Heat Input Capacity: 250

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 73450 (metric tons)

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1b, natural gas billing in mmBtu)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
73450.0 (Metric Tons)	1.38 (Metric Tons)	0.138 (Metric Tons)	34.6 (Metric Tons)	41.3 (Metric Tons)

Equation C1b/C8b Inputs :
Natural Gas Usage : 1384282 (mmBtu/year)

Subpart II: Industrial Wastewater Treatment

Gas Information Details

Gas Name	Methane
Gas Quantity	0 (Metric Tons)
Own Result?

Anaerobic Process Information:

Name or ID:	Biomethanator_RY2020
Anaerobic Process:	Anaerobic Reactor
Is biogas generated in the process recovered?	Yes
Number of weeks that the system was operational:	1
Document or diagram that pertains to this process:
Average depth of the lagoon:
Does the facility measure COD or BOD₅ concentration of the wastewater entering the anaerobic process?	COD
Does the facility perform an ethanol production processing operation? If yes, which process is used?	Dry milling process
How does the facility monitor the CH₄ concentration in the biogas collected for destruction?	Weekly monitoring
Is the biogas temperature incorporated into the monitoring equipment internal calculations?	Yes
Is the biogas pressure incorporated into the monitoring equipment internal calculations?	Yes
Is the biogas moisture content incorporated into the monitoring equipment internal calculations?	No
Was biogas flow measured on a wet or dry basis?	Wet Basis
Was biogas CH₄ concentration measured on a wet or dry basis?	Wet Basis
Does CH₄ destruction occur at the facility, off-site, or both?	On-Site
CH₄ collection efficiency (based on cover type):	0.99
Annual mass of CH₄ generated from anaerobic wastewater treatment process:	0 (Metric Tons)
Annual mass of CH₄ emissions from anaerobic wastewater treatment process:	0 (Metric Tons)

Equation II-1 Inputs:

Week	Flow_w (m³)	MDP?	COD_w (kg/m³)	MDP?	B₀ (kg CH₄/kg COD)	ALT?	MCF	ALT?
1	0		0		0.25		0.8

Equation II-4 Inputs:

Week	Volumetric Biogas Flow (acf)	MDP?	Biogas CH₄ Concentration (%)	MDP?	Biogas Temperature (°R)	Biogas Pressure (atm)	Biogas Moisture (cfw/cfb)
1

Equation II-6 Inputs:

R_n: Annual quantity of CH₄ recovered from the Anaerobic Process:	0 (Metric Tons)
Annual operating hours for the primary destruction device:	0
Destruction efficiency for the primary destruction device:	0.99
Fraction of hours the primary destruction device was operating:
Is a back-up destruction device present at the facility?	No