EPD additional content Aurora™ One-Piece Toilet

Data

Background This product-specific plant-specific declaration was created by collecting production data from the facility in TOTO’s Vietnam (TVN) plant in Hanoi, Vietnam. All unit processes were modeled using primary data. Secondary data sources include those available in the ecoinvent v3.11, US-EI 2.2, and Industry data 2.0 databases.

Allocation Allocations of multi-input and multi-output processes follow a mass-based approach in the collected data, which is the most appropriate for the unit processes modeled. Allocation approaches in the background data follow the ecoinvent methodology. No co-product allocations were made in the model.

Cut-off criteria for the inclusion of mass and energy flows are 1% of renewable primary resource (energy) usage, 1% nonrenewable primary resource (energy) usage, 1% of the total mass input of that unit process, and 1% of environmental impacts. The total of neglected input flows per module does not exceed 5% of energy usage, mass, and environmental impacts. The only exceptions to these criteria are substances with hazardous and toxic properties, which must be listed even when the given process unit is under the cut-off criterion of 1% of the total mass. However, neither toilet contains hazardous substances according to the standards or regulations of the Resource Conservation and Recovery Act (RCRA), Subtitle C. Barring insignificant quantities of wastewater treatment chemicals and reused resin molds, no known flows are deliberately excluded; therefore, these criteria have been met. The completeness of the bill of materials defined in this report satisfies the above-defined cut-off criteria.

Data quality assessment


Precision: As the relevant foreground data is primary data or modeled based on primary information sources of the owner of the technology, precision is considered to be high. Background data are from the ecoinvent v3.11 and US-EI 2.2 databases with documented precision to the extent available.

Completeness: TOTO worked with its manufacturing partners to obtain a comprehensive set of primary data associated with the manufacturing processes. The product system was checked for mass balance and completeness of the inventory. The data set was considered complete based on our understanding of the manufacturing site and a review with key stakeholders on the TOTO team, and cut-off criteria were observed consistent with those prescribed in the PCR. Besides capital equipment, no data was knowingly omitted.

Consistency: Primary data were collected with a similar level of detail, while background data were sourced primarily from the ecoinvent database. Other databases were used if data were not available in ecoinvent, or the data set was judged to be more representative. Other methodological choices were made consistently throughout the model.

Data sets contributing 5% or more to any environmental impact category

Data set name Database name and version Geography Allocation method
Sewage treatment US-EI 2.2 United States By mass
Electricity mix 2021 US-EI 2.2 United States By mass

Flow diagram

TOTO Aurora toilets

Scenarios and additional technical information

Distribution [A4]

Resource category Flow Value Unit
Manufacturing facility (Vietnam) to GA, US Road transport in Vietnam 54.84 km
Sea transport 17,818.50 km
Rail transport from port to GA, US 3,509.68 km
Transport to final users Road transport (83% share) 1,421.05 km
Rail transport (17% share) 2,042.26 km

The Aurora toilets manufactured in Vietnam are first shipped to TOTO’s distribution center in Georgia, US and then transported to end users and building sites. Shipment to end users can occur via trucks or rail with trucks contributing to 83% of the shipments in 2025.


Installation [A5]

Installation of the product is manual with no additional resources being consumed. The inputs in this module include the disposal of packaging waste (plastic bags and corrugated board) with a waste transportation distance of 100 km.

Packaging waste Flow
Plastic bags Recycled - 80.88%
Landfilled - 15.37%
Incinerated - 3.75%
Corrugated board Recycled - 13.63%
Landfilled - 69.44%

End-of-life stage [C1-C4]

This module represents the final waste disposal including the physical treatment and management of the disposal site. Per the PCR, 100% of the discarded product is sent to sanitary landfills.

Name

Value

Unit

Transport from building site to landfill

100

km

Mixed construction waste

59.7

kg

Landfilling total

59.7

kg

Product information

Product family Product models Certifications
Aurora 1.28gpf Toilets CST686CEFGAT40#** Meets and exceeds:
ASME A112.19.2/CSA B45.1
Certifications: IAPMO(cUPC)

Code compliance with UPC, IPC, NSPC, NPC Canada, and others
MS686124CEFG#**
MS686124CEF#**
MS686124CEFRG#**
MS686234CEFG#**
Aurora 1.0gpf (1G) Toilets CST686CUFGAT40#** Meets and exceeds:
ASME A112.19.2/CSA B45.1
Certifications: IAPMO(cUPC)

Code compliance with UPC, IPC, NSPC, NPC Canada, and others
MS686124CUFG#**
MS686124CUF#**
MS686124CUFRG#**
MS686234CUFG#**

Major system boundary exclusions

  • Construction of major capital equipment
  • Maintenance and operation of support equipment
  • Human labor and employee transport
  • Manufacture and transport of packaging materials not associated with final product
  • Energy consumption in warehouses, distribution centers, and retail facilities during the course of transport to the final customer
  • Disposal of packaging materials not associated with final product
  • Building operational energy and water use

Major assumptions and limitations

  • Available ecoinvent data sets were manually updated to represent the upstream component production in the supplier country. However, actual manufacturing operations and resources consumed for each component might vary.
  • Generic data sets used for material inputs, transportation, and waste processing are considered good quality, but actual impacts from material suppliers, transport carriers, and local waste processing may vary.
  • The impacts of resin molds, expected to be minimal, in ceramic production is excluded from the study.
  • Some chemicals used in wastewater treatment in ceramic production plant with minimal share (annual facility consumption <= 1 kg) has been excluded.
  • For materials with unknown suppliers and transport distances, a generic value of 2,000 km was used as suggested by PCR. However, actual transport distances might vary.

The reported values for all indicators in the below tables for B1, B5, and C1 are zero.

Aurora 1.28gpf - LCIA results, resource use, output and waste flows, and carbon emissions & removals per functional unit

Impact categories Unit A1-A3 A4 A5 B2 B3 B4 B7 C2 C4
Ozone depletion kg CFC-11 eq 3.51E-06 8.09E-09 1.03E-07 1.12E-07 4.33E-07 1.95E-05 2.94E-05 5.78E-10 9.47E-10
Global warming kg CO2 eq 1.89E+02 1.06E+01 3.09E+00 3.51E+00 5.49E+00 1.07E+03 1.25E+03 6.16E-01 5.30E-01
Smog kg O3 eq 1.95E+01 4.07E+00 1.01E+01 1.70E-01 4.58E-01 1.45E+02 4.93E+01 9.82E-02 6.83E-02
Acidification kg SO2 eq 9.31E-01 1.38E-01 2.85E-01 1.95E-02 6.16E-02 6.20E+00 5.02E+00 3.41E-03 2.42E-03
Respiratory effects kg PM2.5 eq 5.89E-02 2.26E-03 3.05E-03 1.68E-03 7.67E-03 3.26E-01 3.85E-01 5.32E-05 2.54E-04
Freshwater eutrophication kg P eq 4.16E-03 2.33E-05 2.28E-05 6.63E-05 2.65E-03 2.16E-02 2.76E-02 1.38E-06 4.54E-06
Marine eutrophication kg N eq 1.67E-01 3.39E-02 8.47E-02 1.63E-03 4.94E-03 1.23E+00 4.36E-01 8.21E-04 5.89E-04
Additional impact categories
Carcinogenics CTUh 3.06E-06 1.46E-07 1.06E-08 7.15E-08 2.49E-07 1.68E-05 3.01E-05 8.52E-09 3.58E-09
Non carcinogenics CTUh 3.36E-05 1.37E-06 1.01E-07 7.01E-07 3.16E-05 1.86E-04 1.06E-04 7.95E-08 1.91E-08
Ecotoxicity CTUe 1.64E+02 2.62E+01 1.64E+00 1.72E+00 3.85E+01 9.74E+02 4.88E+02 1.52E+00 3.63E-01
Resource use indicators
Renewable primary energy used as energy carrier (fuel) MJ, NCV 5.79E+02 2.56E-01 3.35E-01 6.02E+00 2.05E+00 6.72E+03 2.09E+03 1.73E-02 6.09E-02
Renewable primary resources with energy content used as material MJ, NCV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Total use of renewable primary resources with energy content MJ, NCV 5.79E+02 2.56E-01 3.35E-01 6.02E+00 2.05E+00 6.72E+03 2.09E+03 1.73E-02 6.09E-02
Non-renewable primary resources used as an energy carrier (fuel) MJ, NCV 3.01E+03 1.30E+02 8.53E+00 8.15E+01 2.78E+01 6.77E+04 2.06E+04 3.96E+00 4.45E+00
Non-renewable primary resources with energy content used as material MJ, NCV 1.99E+01 3.86E+00 3.86E+00 3.86E+00 0.00E+00 5.88E+01 0.00E+00 3.86E+00 3.86E+00
Total use of non-renewable primary resources with energy content MJ, NCV 3.03E+03 1.34E+02 1.24E+01 8.53E+01 2.78E+01 6.78E+04 2.06E+04 7.82E+00 8.31E+00
Secondary materials kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Renewable secondary fuels MJ, NCV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Non-renewable secondary fuels MJ, NCV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Recovered energy MJ, NCV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Use of net fresh water resources m3 9.14E-04 1.70E-03 1.61E-03 1.02E-03 0.00E+00 3.05E-04 8.20E-04 7.30E-04 7.80E-04
Abiotic depletion potential (fossil) MJ, LHV 2.72E+03 1.32E+02 1.15E+01 7.87E+01 9.01E+01 1.52E+04 1.46E+04 7.71E+00 8.11E+00
Output flows and waste category indicators
Hazardous waste disposed kg 6.40E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Non-hazardous waste disposed kg 2.99E+01 1.20E+00 1.43E+00 2.93E+01 1.11E+00 1.32E+02 0.00E+00 5.40E-01 2.59E+01
High-level radioactive waste, conditioned, to final repository kg 7.81E-03 5.93E-04 3.89E-05 3.44E-04 0.00E+00 1.47E+01 1.51E+01 1.61E-06 4.81E-06
Intermediate- and low-level radioactive waste, conditioned, to final repository kg 4.07E-05 3.38E-07 1.25E-07 7.76E-07 4.14E-07 8.05E-05 5.58E-05 1.54E-08 2.46E-08
Components for re-use kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Materials for recycling kg 0.00E+00 0.00E+00 0.00E+00 2.93E+01 0.00E+00 4.45E+01 0.00E+00 2.20E-01 2.20E-01
Materials for energy recovery kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Exported energy MJ 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Carbon emissions and removals
Biogenic Carbon Removal from Product kg CO2 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Biogenic Carbon Emission from Product kg CO2 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Biogenic Carbon Removal from Packaging kg CO2 7.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.05E+01 0.00E+00 0.00E+00 0.00E+00
Biogenic Carbon Emission from Packaging kg CO2 0.00E+00 0.00E+00 7.00E+00 0.00E+00 0.00E+00 1.05E+01 0.00E+00 0.00E+00 0.00E+00
Biogenic Carbon Emission from Combustion of Waste from Renewable Sources Used in Production Processes kg CO2 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Calcination Carbon Emissions kg CO2 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Carbonation Carbon Removals kg CO2 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
Carbon Emissions from Combustion of Waste from Renewable and Non-Renewable Sources used in Production Processes kg CO2 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

Aurora 1.0gpf - LCIA results, resource use, output and waste flows, and carbon emissions & removals per functional unit

Impact categoriesUnitA1-A3
A4
A5
B2
B3
B4
B7
C2
C4
Ozone depletion
kg CFC-11 eq
3.51E-06
8.09E-09
1.03E-07
1.12E-07
4.33E-07
1.95E-05
2.30E-05
5.78E-10
9.47E-10
Global warming
kg CO2 eq
1.89E+02
1.06E+01
3.09E+00
3.51E+00
5.49E+00
1.07E+03
9.79E+02
6.16E-01
5.30E-01
Smog
kg O3 eq
1.95E+01
4.07E+00
1.01E+01
1.70E-01
4.58E-01
1.45E+02
3.85E+01
9.82E-02
6.83E-02
Acidification
kg SO2 eq
9.31E-01
1.38E-01
2.85E-01
1.95E-02
6.16E-02
6.20E+00
3.93E+00
3.41E-03
2.42E-03
Respiratory effects
kg PM2.5 eq
5.89E-02
2.26E-03
3.05E-03
1.68E-03
7.67E-03
3.26E-01
3.00E-01
5.32E-05
2.54E-04
Freshwater eutrophication
kg P eq
4.16E-03
2.33E-05
2.28E-05
6.63E-05
2.65E-03
2.16E-02
2.16E-02
1.38E-06
4.54E-06
Marine eutrophication
kg N eq
1.67E-01
3.39E-02
8.47E-02
1.63E-03
4.94E-03
1.23E+00
3.40E-01
8.21E-04
5.89E-04
Additional impact categories
Carcinogenics
CTUh
3.06E-06
1.46E-07
1.06E-08
7.15E-08
2.49E-07
1.68E-05
2.35E-05
8.52E-09
3.58E-09
Non carcinogenics
CTUh
3.36E-05
1.37E-06
1.01E-07
7.01E-07
3.16E-05
1.86E-04
8.31E-05
7.95E-08
1.91E-08
Ecotoxicity
CTUe
1.64E+02
2.62E+01
1.64E+00
1.72E+00
3.85E+01
9.74E+02
3.82E+02
1.52E+00
3.63E-01
Resource use indicators
Renewable primary energy used as energy carrier (fuel)
MJ, NCV
5.79E+02
2.56E-01
3.35E-01
6.02E+00
2.05E+00
5.47E+03
1.63E+03
1.73E-02
6.09E-02
Renewable primary resources with energy content used as material
MJ, NCV
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Total use of renewable primary resources with energy content
MJ, NCV
5.79E+02
2.56E-01
3.35E-01
6.02E+00
2.05E+00
5.47E+03
1.63E+03
1.73E-02
6.09E-02
Non-renewable primary resources used as an energy carrier (fuel)
MJ, NCV
3.01E+03
1.30E+02
8.53E+00
8.15E+01
2.78E+01
5.53E+04
1.61E+04
3.96E+00
4.45E+00
Non-renewable primary resources with energy content used as material
MJ, NCV
1.99E+01
3.86E+00
3.86E+00
3.86E+00
0.00E+00
5.88E+01
0.00E+00
3.86E+00
3.86E+00
Total use of non-renewable primary resources with energy content
MJ, NCV
3.03E+03
1.34E+02
1.24E+01
8.53E+01
2.78E+01
5.54E+04
1.61E+04
7.82E+00
8.31E+00
Secondary materials
kg
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Renewable secondary fuels
MJ, NCV
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Non-renewable secondary fuels
MJ, NCV
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Recovered energy
MJ, NCV
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Use of net fresh water resources
m3
1.20E-03
1.70E-03
1.61E-03
1.02E-03
0.00E+00
2.91E-04
6.40E-04
7.23E-04
7.80E-04
Abiotic depletion potential (fossil)
MJ, LHV
2.72E+03
1.32E+02
1.15E+01
7.87E+01
9.01E+01
1.52E+04
1.13E+04
7.71E+00
8.11E+00
Output flows and waste category indicators
Hazardous waste disposed
kg
6.40E-01
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Non-hazardous waste disposed
kg
2.99E+01
1.20E+00
1.43E+00
2.93E+01
1.11E+00
1.32E+02
0.00E+00
5.40E-01
2.59E+01
High-level radioactive waste, conditioned, to final repository
kg
7.81E-03
5.93E-04
3.89E-05
3.44E-04
0.00E+00
1.47E+01
6.94E-02
1.61E-06
4.81E-06
Intermediate- and low-level radioactive waste, conditioned, to final repository
kg
4.07E-05
3.38E-07
1.25E-07
7.76E-07
4.14E-07
8.05E-05
6.37E-04
1.54E-08
2.46E-08
Components for re-use
kg
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Materials for recycling
kg
0.00E+00
0.00E+00
0.00E+00
2.93E+01
0.00E+00
4.45E+01
0.00E+00
2.20E-01
2.20E-01
Materials for energy recovery
kg
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Exported energy
MJ
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Carbon emissions and removals
Biogenic Carbon Removal from Product
kg CO2
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Biogenic Carbon Emission from Product
kg CO2
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Biogenic Carbon Removal from Packaging
kg CO2
7.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
1.05E+01
0.00E+00
0.00E+00
0.00E+00
Biogenic Carbon Emission from Packaging
kg CO2
0.00E+00
0.00E+00
7.00E+00
0.00E+00
0.00E+00
1.05E+01
0.00E+00
0.00E+00
0.00E+00
Biogenic Carbon Emission from Combustion of Waste from Renewable Sources Used in Production Processes
kg CO2
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Calcination Carbon Emissions
kg CO2
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Carbonation Carbon Removals
kg CO2
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
Carbon Emissions from Combustion of Waste from Renewable and Non-Renewable Sources used in Production Processes
kg CO2
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00
0.00E+00