Facility	City	Industry	Status	Distance
Vulcan Materials Company	Washington	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	1.8 KM
SiliProducts, LLC	Arlington	Cut Stone and Stone Product Manufacturing 327991	UNVERIFIED	6.2 KM
Konoval LLC	Washington	Surgical Appliance and Supplies Manufacturing 339113	LIKELY ACTIVE	5.4 KM
Recycled Aggregates - Dc Rock Plant	Washington	All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999	UNVERIFIED	7.7 KM
Ward & Gray INC.	Silver Spring	Cut Stone and Stone Product Manufacturing 327991	UNVERIFIED	9.4 KM

Every listed plant in District of Columbia County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 5 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

EPA cross-references this facility in OSHA-OIS.

Source	Evidence	First seen	Last seen
EPA FRS	EXISTENCE	SEP 2018	SEP 2018

FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT

FIELD	SOURCE	SIGNAL
ADDRESS LINE1	EPA FRS	JUL 2026
CITY	EPA FRS	JUL 2026
GEOM	EPA FRS	JUL 2026
NAME	EPA FRS	JUL 2026
STATE	EPA FRS	JUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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