OP TECH ENVIRONMENTAL SERVICES INC

2.01,3.01,3.03,5.01,5.02,5.03,9.01

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Tender offer statement by a third party (amendment)

No description available

Certification of termination of registration of a class of securities (Section 12(g))

Letter from the SEC

Tender offer statement by a third party (amendment)

Letter from the SEC

Tender offer statement by a third party

No description available

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-K

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

Definitive information statement

No description available

Letter from the SEC

Correspondence with the SEC

General form for quarterly reports under Section 13 or 15(d) (amendment)

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

General form for quarterly reports under Section 13 or 15(d)

1.01,2.03,9.01

Annual report pursuant to Section 13 or 15(d)

Notification of late filing of Form 10-K

1.01,2.03,3.02,9.01

General form for quarterly reports under Section 13 or 15(d)

Rule 506

General form for quarterly reports under Section 13 or 15(d)

Definitive information statement

No description available

General form for quarterly reports under Section 13 or 15(d) (amendment)

4.02

Definitive information statement

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Definitive information statement

4.02

No description available

Definitive information statement

5.02

5.02

Definitive information statement

2.03

Definitive information statement

Definitive information statement

4

Definitive information statement

No description available

No description available

5

No description available

5

No description available

No description available

No description available

No description available

No description available

Morgan Charles

Sanders Steven Andrew

BERGER ROBERT J

Verbeck Jon

Jacobson Richard D

MESSINA RICHARD

BERGER ROBERT J

BERGER ROBERT J

LEE DOUGLAS R

POLIMINO CHRISTOPHER J

BERGER ROBERT J

PRICE COLLEEN M