| | — | RADIAN CORP | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Sep 15, 2020 |
| | — | RADIAN CORP | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Sep 15, 2020 |
| | — | RADIAN CORP | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Sep 15, 2020 |
| | — | RADIAN CORP | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Sep 15, 2020 |
| | — | RADIAN CORP | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Sep 15, 2020 |
| | — | INTERNATIONAL CONSULTANTS, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Apr 15, 2001 |
| | — | RADIAN CORP | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Sep 15, 1999 | Sep 15, 1999 | Sep 15, 2020 |
| | — | INTERNATIONAL CONSULTANTS, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Aug 15, 1999 | Aug 15, 1999 | Apr 15, 2001 |
| | — | DYNAMAC INTERNATIONAL, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Jul 15, 1999 | Jul 15, 1999 | Sep 15, 2003 |
| | — | ICF INCORPORATED, L.L.C. | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Jun 15, 1999 | Jun 15, 1999 | Sep 15, 2001 |
| | — | INTERNATIONAL CONSULTANTS, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | May 15, 1999 | May 15, 1999 | Apr 15, 2001 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Apr 15, 1999 | Apr 15, 1999 | Sep 15, 2020 |
| | — | INTERNATIONAL CONSULTANTS, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Apr 15, 1999 | Apr 15, 1999 | Apr 15, 2001 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Mar 15, 1999 | Mar 15, 1999 | Sep 15, 2020 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Mar 15, 1999 | Mar 15, 1999 | Sep 15, 2020 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Feb 15, 1999 | Feb 15, 1999 | Sep 15, 2020 |
| | — | ICF INCORPORATED, L.L.C. | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Feb 15, 1999 | Feb 15, 1999 | Sep 15, 2001 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Jan 15, 1999 | Jan 15, 1999 | Sep 15, 2020 |
| | — | ICF INCORPORATED, L.L.C. | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Jan 15, 1999 | Jan 15, 1999 | Sep 15, 2001 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Jan 15, 1999 | Jan 15, 1999 | Sep 15, 2020 |
| | — | DYNAMAC INTERNATIONAL, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Dec 15, 1998 | Dec 15, 1998 | Sep 30, 2003 |
| | — | INTERNATIONAL CONSULTANTS, INC | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Nov 15, 1998 | Nov 15, 1998 | Apr 15, 2001 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Nov 15, 1998 | Nov 15, 1998 | Sep 15, 2020 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Nov 15, 1998 | Nov 15, 1998 | Sep 15, 2020 |
| | — | RESEARCH TRIANGLE INSTITUTE | $0 | ENVIRONMENTAL PROTECTION AGENCY | — | — | — | R504 | Nov 15, 1998 | Nov 15, 1998 | Sep 15, 2020 |