$CLH SEC Filings

Filing Filed On
NT 10-K 01 Mar 2013
NT 10-K 29 Feb 2008
NOTICE OF INABILITY TO TIMELY FILE A FORM 10-K, 10-KSB, OR 10-KT 17 Mar 2006
NT 10-K 17 Mar 2005
NOTIFICATION OF LATE FILING 01 Apr 2003
FORM NT 10-K 02 Apr 2001