| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | PL | ISSUED | I.M.P. PLBG. & HTG. CORP | 03/21/1996 |
| BIS | — | ISSUED | RW TECHNICAL SRVS. INC | 01/17/1995 |
| BIS | SP | ISSUED | I.M.P. PLBG & HTG CORP | 08/02/1994 |
| BIS | — | ISSUED | RW TECHNICAL SRVS. INC | 04/28/1993 |
| BIS | — | ISSUED | RW TECHNICAL SVC INC. | 12/29/1992 |
| BIS | — | ISSUED | S.D.AMATO CONTRACTING | 11/25/1991 |