| Aspect |
Impacts |
Significance Evaluation |
Legal & Other Requirements |
Operational Controls & Measuring
Protocols |
| Metal (raw) |
Natural Resource Use: nonrenewable (recycled stock)
Air Impacts: mist
Water Impacts: none
Land Impacts: none
Other Impacts: none
|
Qualitative Analysis: resource use
Quantitative Analysis: magnitude/severity=2
frequency=5
Significant?
Qualitative: yes
Quantitative: yes |
RCRA: none
CERCLA: none
EPCRA: none
CWA: none
CAA: none
|
Operational Controls: material specification indicates recycled content
Parametric Measures: none
Performance Measures: percentage of recycled scrap |
| Metal (waste) |
Natural Resource Use: nonrenewable (recycled)
Air Impacts: none
Water Impacts: none
Land Impacts: solid waste
Other Impacts: none |
Qualitative Analysis: reusable resource
Quantitative Analysis: magnitude/severity=1
frequency=5
Significant?
Qualitative: yes
Quantitative: no |
RCRA: solid
CERCLA: none
EPCRA: none
CWA: none
CAA: none |
Operational Controls: metal collection procedure, metal recycler contract
Parametric Measures: none
Performance Measures: percentage of recycled scrap |
| Energy - furnace |
Natural Resource Use: nonrenewable (oxygen)
Air Impacts: NOx, CO, CO2, PM, SiO2/ metal oxides, visual stacks
Water Impacts: temperature
Land Impacts: none
Other Impacts: none
|
Qualitative Analysis: resource use
Quantitative Analysis: magnitude/severity=2
frequency=5
Significant?
Qualitative: yes
Quantitative: yes |
RCRA: none
CERCLA: none
EPCRA: none
CWA: none
CAA: NSPS, NSR if “new source,” operating permits, enhanced monitoring |
Operational Controls: furnace operation procedure, control device operation
Parametric Measures: firing rates, natural gas usage, flame temperature, continuous emission monitor
Performance Measures: amount of energy used per pound of product |
| Waste Heat |
Natural Resource Use: nonrenewable (oxygen)
Air Impacts: NOx, CO, CO2, PM, SiO2/ metal oxides, visual stacks
Water Impacts: temperature
Land Impacts: none
Other Impacts: none
|
Qualitative Analysis: reusable resource, resource use
Quantitative Analysis: magnitude/severity=2
frequency=5
Significant?
Qualitative: yes
Quantitative: yes |
RCRA: none
CERCLA: none
EPCRA: none
CWA: none
CAA: none |
Operational Controls: furnace design, insulation design, cooling water system design
Parametric Measures: none
Performance Measures: cost of heat loss per pound of product, heat recovery percentage |
