HAZARDOUS WASTE MANAGEMENT - Latest SC 13G/A SEC Filings

HAZARDOUS WASTE MANAGEMENT

Latest SC 13G/A SEC Filings
Statement of acquisition of beneficial ownership by individuals: [Amend]

GZA GEOENVIRONMENTAL TECHNOLOGIES INC, SC 13G/A, 2000-10-10
WESTON ROY F INC, SC 13G/A, 2000-08-10
SAFETY KLEEN CORP/, SC 13G/A, 2000-07-07
IT GROUP INC, SC 13G/A, 2000-04-05
MED WASTE INC, SC 13G/A, 2000-02-15
THERMORETEC CORP, SC 13G/A, 2000-02-14
SEVENSON ENVIRONMENTAL SERVICES INC, SC 13G/A, 2000-02-14
WESTON ROY F INC, SC 13G/A, 2000-02-14
TRC COMPANIES INC /DE/, SC 13G/A, 2000-02-14
IT GROUP INC, SC 13G/A, 2000-02-11
SAFETY KLEEN CORP/, SC 13G/A, 2000-02-11
TRC COMPANIES INC /DE/, SC 13G/A, 2000-02-09
CET ENVIRONMENTAL SERVICES INC, SC 13G/A, 2000-02-04
WESTON ROY F INC, SC 13G/A, 2000-02-03
NESCO INC/OK, SC 13G/A, 2000-02-02
GZA GEOENVIRONMENTAL TECHNOLOGIES INC, SC 13G/A, 2000-01-18
IT GROUP INC, SC 13G/A, 1999-12-29
PERMA FIX ENVIRONMENTAL SERVICES INC, SC 13G/A, 1999-03-24
IT GROUP INC, SC 13G/A, 1999-03-11
MED WASTE INC, SC 13G/A, 1999-02-17
MERCURY WASTE SOLUTIONS INC, SC 13G/A, 1999-02-16
SUPERIOR SERVICES INC, SC 13G/A, 1999-02-16
THERMO REMEDIATION INC, SC 13G/A, 1999-02-16
STERICYCLE INC, SC 13G/A, 1999-02-16
CLEAN HARBORS INC, SC 13G/A, 1999-02-16
COMMODORE APPLIED TECHNOLOGIES INC, SC 13G/A, 1999-02-12
SUPERIOR SERVICES INC, SC 13G/A, 1999-02-12
STERICYCLE INC, SC 13G/A, 1999-02-12
HARDING LAWSON ASSOCIATES GROUP INC, SC 13G/A, 1999-02-12
FLUOR DANIEL GTI INC, SC 13G/A, 1999-02-12
IT GROUP INC, SC 13G/A, 1999-02-12
WESTON ROY F INC, SC 13G/A, 1999-02-12
TRC COMPANIES INC /DE/, SC 13G/A, 1999-02-12
CET ENVIRONMENTAL SERVICES INC, SC 13G/A, 1999-02-11
ATLANTIS GROUP INC, SC 13G/A, 1999-02-11
CET ENVIRONMENTAL SERVICES INC, SC 13G/A, 1999-02-10
GNI GROUP INC /DE/, SC 13G/A, 1999-02-10
NATIONAL ENVIRONMENTAL SERVICE CO, SC 13G/A, 1999-02-09
HARDING LAWSON ASSOCIATES GROUP INC, SC 13G/A, 1999-02-09
WESTON ROY F INC, SC 13G/A, 1999-02-09
U S LIQUIDS INC, SC 13G/A, 1999-02-02
IT GROUP INC, SC 13G/A, 1999-02-02
TRC COMPANIES INC /DE/, SC 13G/A, 1999-02-02
U S LIQUIDS INC, SC 13G/A, 1999-01-27
GZA GEOENVIRONMENTAL TECHNOLOGIES INC, SC 13G/A, 1999-01-26
WESTON ROY F INC, SC 13G/A, 1998-12-16
HARDING LAWSON ASSOCIATES GROUP INC, SC 13G/A, 1998-12-10
ENVIRONMENTAL REMEDIATION HOLDING CORP, SC 13G/A, 1998-10-23
WESTON ROY F INC, SC 13G/A, 1998-07-10
IMPERIAL PETROLEUM RECOVERY CORP, SC 13G/A, 1998-02-17
SUPERIOR SERVICES INC, SC 13G/A, 1998-02-17
OHM CORP, SC 13G/A, 1998-02-17
SUPERIOR SERVICES INC, SC 13G/A, 1998-02-13
WESTON ROY F INC, SC 13G/A, 1998-02-13
THERMO REMEDIATION INC, SC 13G/A, 1998-02-12
ICF KAISER INTERNATIONAL INC, SC 13G/A, 1998-02-12
NEW HORIZONS WORLDWIDE INC, SC 13G/A, 1998-02-12
HARDING LAWSON ASSOCIATES GROUP INC, SC 13G/A, 1998-02-12
FLUOR DANIEL GTI INC, SC 13G/A, 1998-02-12
TRC COMPANIES INC /DE/, SC 13G/A, 1998-02-12
CLEAN HARBORS INC, SC 13G/A, 1998-02-10
PERMA FIX ENVIRONMENTAL SERVICES INC, SC 13G/A, 1998-02-06
WESTON ROY F INC, SC 13G/A, 1998-02-04
NATIONAL ENVIRONMENTAL SERVICE CO, SC 13G/A, 1998-02-03
GZA GEOENVIRONMENTAL TECHNOLOGIES INC, SC 13G/A, 1998-01-30
HARDING LAWSON ASSOCIATES GROUP INC, SC 13G/A, 1998-01-30
WESTON ROY F INC, SC 13G/A, 1998-01-30
INTERNATIONAL TECHNOLOGY CORP, SC 13G/A, 1998-01-27
TRC COMPANIES INC /DE/, SC 13G/A, 1998-01-23
OHM CORP, SC 13G/A, 1998-01-22
CHEMPOWER INC, SC 13G/A, 1997-12-01
NATIONAL ENVIRONMENTAL SERVICE CO, SC 13G/A, 1997-03-06
NATIONAL ENVIRONMENTAL SERVICE CO, SC 13G/A, 1997-02-20
GZA GEOENVIRONMENTAL TECHNOLOGIES INC, SC 13G/A, 1997-02-14
HARDING LAWSON ASSOCIATES GROUP INC, SC 13G/A, 1997-02-14
OHM CORP, SC 13G/A, 1997-02-14
VECTRA TECHNOLOGIES INC, SC 13G/A, 1997-02-14
MOLTEN METAL TECHNOLOGY INC /DE/, SC 13G/A, 1997-02-13
CLEAN HARBORS INC, SC 13G/A, 1997-02-13
WESTON ROY F INC, SC 13G/A, 1997-02-13
TRC COMPANIES INC /DE/, SC 13G/A, 1997-02-13
ICF KAISER INTERNATIONAL INC, SC 13G/A, 1997-02-12
WESTON ROY F INC, SC 13G/A, 1997-02-12
SUPERIOR SERVICES INC, SC 13G/A, 1997-02-05
PERMA FIX ENVIRONMENTAL SERVICES INC, SC 13G/A, 1997-02-05
CHEMPOWER INC, SC 13G/A, 1997-01-29
WESTON ROY F INC, SC 13G/A, 1997-01-29
OHM CORP, SC 13G/A, 1997-01-24
ROLLINS ENVIRONMENTAL SERVICES INC, SC 13G/A, 1997-01-24
TRC COMPANIES INC /DE/, SC 13G/A, 1997-01-24
WESTON ROY F INC, SC 13G/A, 1996-08-09
GZA GEOENVIRONMENTAL TECHNOLOGIES INC, SC 13G/A, 1996-03-11
OHM CORP, SC 13G/A, 1996-02-14
VECTRA TECHNOLOGIES INC, SC 13G/A, 1996-02-15
WESTON ROY F INC, SC 13G/A, 1996-02-14
TRC COMPANIES INC /DE/, SC 13G/A, 1996-02-14
HARDING ASSOCIATES INC, SC 13G/A, 1996-02-12
WESTON ROY F INC, SC 13G/A, 1996-02-12
INTERNATIONAL TECHNOLOGY CORP, SC 13G/A, 1996-02-07
TRC COMPANIES INC /DE/, SC 13G/A, 1996-02-06
OHM CORP, SC 13G/A, 1996-02-02
VECTRA TECHNOLOGIES INC, SC 13G/A, 1996-01-10
WESTON ROY F INC, SC 13G/A, 1996-01-10
LVI GROUP INC, SC 13G/A, 1995-02-15
OHM CORP, SC 13G/A, 1995-02-14
WESTON ROY F INC, SC 13G/A, 1995-02-13
HARDING ASSOCIATES INC, SC 13G/A, 1995-02-10
WESTON ROY F INC, SC 13G/A, 1995-02-10
TRC COMPANIES INC /DE/, SC 13G/A, 1995-02-10
TRC COMPANIES INC /DE/, SC 13G/A, 1995-02-08
WESTON ROY F INC, SC 13G/A, 1994-12-09
LVI GROUP INC, SC 13G/A, 1994-09-22
LVI GROUP INC, SC 13G/A, 1994-06-13
LVI GROUP INC, SC 13G/A, 1994-06-09
INTERNATIONAL TECHNOLOGY CORP, SC 13G/A, 1994-02-14
WESTON ROY F INC, SC 13G/A, 1994-02-14
LVI GROUP INC, SC 13G/A, 1994-02-14
WESTON ROY F INC, SC 13G/A, 1994-02-10