John J. Brennan Construction Co. Inc.
Public listing for John J. Brennan Construction Co. Inc., drawn from CT DEEP General Permit 454GP contractor list (updated July 22, 2026).
Oil Tank Directory is a public certification lookup and comparison site. We are not a contractor, and we do not perform tank removal, testing, or cleanup. We list firms that appear on publicly published state certification or service-provider lists. Always verify a firm's current license or certification with the issuing state agency before hiring. This page is not a review, rating, or endorsement.
- Location: CT
- Phone (from source list): (203) 929-6314
- Email (from source list): [email protected]
- Certification / ID: 454GP-00007
- Listed expiry: 12/22/2027
- Services (as published): CT DEEP 454GP release mitigation / removal contractor
Source CT DEEP General Permit 454GP contractor list (updated July 22, 2026) · list date 2026-07-22
Verify before hiring: CT DEEP release-based cleanup / 454GP
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Directory disclosure: Oil Tank Directory is a public certification lookup and comparison site. We are not a contractor, and we do not perform tank removal, testing, or cleanup. We list firms that appear on publicly published state certification or service-provider lists. Always verify a firm's current license or certification with the issuing state agency before hiring.