Mass Bay Lines

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Capstan Management, INC.	Chelsea	Ship Building and Repairing 336611	● ACTIVE	0.0 KM
BMBoston Marine Services	Boston	Ship Building and Repairing 336611	◇ UNVERIFIED	1.7 KM
UCUS Coast Guard Integrated Support Cmnd	Boston	Battery Manufacturing 335912	◐ LIKELY ACTIVE	2.6 KM
Sea Machines Robotics, INC	Boston	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	● ACTIVE	2.8 KM
FRFederal Resources Supply Company, LLC	Boston	All Other Miscellaneous Manufacturing 339999	● ACTIVE	3.8 KM

Every listed plant in Suffolk County

Also at this address

More than one federal record exists for this street address. The primary record for the site is listed first.

Capstan Management, INC.

Chelsea, MA

● ACTIVE336611EMP 1-19

Where this record comes from

1 source holds this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in MA-EPICS, RCRAINFO.

• EPA Facility Registry ServiceEXISTENCE
  Record 110070596248 · first seen SEP 2019 · last seen SEP 2019

IN SUFFOLK COUNTY7 other plants share this one’s industry (Ship and Boat Building, NAICS 3366); 2 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: MASS BAY LINES · OCT 2026

Street address

EPA: 1 WINNISIMMET ST · OCT 2026

City

EPA: CHELSEA · OCT 2026

State

EPA: MA · OCT 2026

County (FIPS code)

EPA: 25025 · OCT 2026

Coordinates

EPA: 42.38693,-71.04072 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: VSQG · OCT 2026