IRS No.: 330001212 | State of Incorp.: DE | Fiscal Year End: 0331
Type: S-4/A | Act: 33 | File No.: 333-76883 | Film No.: 99670548
SIC: 4955 Hazardous Waste Management

IRS No.: 341503050 | State of Incorp.: OH | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-01 | Film No.: 99670549
SIC: 4955 Hazardous Waste Management

IRS No.: 020324047 | State of Incorp.: DE | Fiscal Year End: 1031
Type: S-4/A | Act: 33 | File No.: 333-76883-02 | Film No.: 99670550
SIC: 4955 Hazardous Waste Management

IRS No.: 941738964 | State of Incorp.: CA | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-35 | Film No.: 99670551
SIC: 8711 Services-Engineering Services

Type: S-4/A | Act: 33 | File No.: 333-76883-36 | Film No.: 99670552

IRS No.: 232946547 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-03 | Film No.: 99670553
SIC: 0000

IRS No.: 561231308 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-04 | Film No.: 99670554
SIC: 0000

IRS No.: 042857447 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-05 | Film No.: 99670555
SIC: 0000

IRS No.: 841479216 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-06 | Film No.: 99670556
SIC: 0000

IRS No.: 341275607 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-07 | Film No.: 99670557
SIC: 0000

IRS No.: 760143090 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-08 | Film No.: 99670558
SIC: 0000

IRS No.: 870349697 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-09 | Film No.: 99670559
SIC: 0000

IRS No.: 841479214 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-10 | Film No.: 99670560
SIC: 0000

IRS No.: 330754921 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-11 | Film No.: 99670561
SIC: 0000

IRS No.: 841479222 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-12 | Film No.: 99670562
SIC: 0000

IRS No.: 943223144 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-13 | Film No.: 99670563
SIC: 0000

IRS No.: 770391324 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-14 | Film No.: 99670564
SIC: 0000

IRS No.: 841417843 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-15 | Film No.: 99670565
SIC: 0000

IRS No.: 251832097 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-16 | Film No.: 99670566
SIC: 0000

IRS No.: 251832096 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-17 | Film No.: 99670567
SIC: 0000

IRS No.: 330721650 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-18 | Film No.: 99670568
SIC: 0000

IRS No.: 931018025 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-19 | Film No.: 99670569
SIC: 0000

IRS No.: 042944746 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-20 | Film No.: 99670570
SIC: 0000

IRS No.: 510386873 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-21 | Film No.: 99670571
SIC: 0000

IRS No.: 251833796 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-22 | Film No.: 99670572
SIC: 0000

IRS No.: 232946696 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-23 | Film No.: 99670573
SIC: 0000

IRS No.: 522077368 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-24 | Film No.: 99670574
SIC: 0000

IRS No.: 841479217 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-25 | Film No.: 99670575
SIC: 0000

IRS No.: 841479218 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-26 | Film No.: 99670576
SIC: 0000

IRS No.: 521862081 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-27 | Film No.: 99670577
SIC: 0000

IRS No.: 521139905 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-28 | Film No.: 99670578
SIC: 0000

IRS No.: 841417566 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-29 | Film No.: 99670579
SIC: 0000

IRS No.: 330437335 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-30 | Film No.: 99670580
SIC: 0000

IRS No.: 941259053 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-31 | Film No.: 99670581
SIC: 0000

IRS No.: 920161467 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-32 | Film No.: 99670582
SIC: 0000

IRS No.: 731004178 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-33 | Film No.: 99670583
SIC: 0000

IRS No.: 943027373 | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-76883-34 | Film No.: 99670584
SIC: 0000

Type: S-4/A | Act: 33 | File No.: 333-76883-37 | Film No.: 99670585

Type: S-4/A | Act: 33 | File No.: 333-76883-38 | Film No.: 99670586

Type: S-4/A | Act: 33 | File No.: 333-76883-39 | Film No.: 99670587

Type: S-4/A | Act: 33 | File No.: 333-76883-40 | Film No.: 99670588

Type: S-4/A | Act: 33 | File No.: 333-76883-41 | Film No.: 99670589

Type: S-4/A | Act: 33 | File No.: 333-76883-42 | Film No.: 99670590

Type: S-4/A | Act: 33 | File No.: 333-76883-43 | Film No.: 99670591

Type: S-4/A | Act: 33 | File No.: 333-76883-44 | Film No.: 99670592

Type: S-4/A | Act: 33 | File No.: 333-76883-45 | Film No.: 99670593