Livestock feedlot runoff control by vegetative filters /

Mode of access: Internet.

Rock filters for removal of algae from lagoon effluents /

Mode of access: Internet.

Non-destructive measurement of U-235 retained in absolute air filters /

"April 15, 1964."

How do I manage my used oil and used oil filters?

"Information presented in this publication is intended to provide a general understanding of the statutory and regulatory requirements governing used oil and oil filters generated by small businesses remediation waste. This information is not intended to replace, limit or expand upon the complete statutory and regulatory requirements found in the Illinois Environmental Protection Act and Title 35 of the Illinois Administrative Code of Regulations."