R 73-015

		R 73-015 01/16/75 Order IN THE MATTER OF: PROPOSED AMENDMENTS TO RULES 203 AND 408 (FLUORIDE) OF THE ILLINOIS WATER POLLUTION CONTROL REGULATIONS
		R 73-015 03/06/75 Opinion and Order IN THE MATTER OF: PROPOSED AMENDMENTS TO RULES 203 AND 408 OF THE ILLINOIS WATER POLLUTION CONTROL REGULATIONS
		R 73-015 12/19/74 Order IN THE MATTER OF: PROPOSED CHANGES TO THE ILLINOIS WATER POLLUTION CONTROL REGULATIONS