Facility	City	Industry	Status	Distance
Nowfab	Spring Grove	All Other Miscellaneous Manufacturing 339999	UNVERIFIED	2.0 KM
International Road Dynamics Corporation	Spring Grove	All Other Miscellaneous General Purpose Machinery Manufacturing 333998	ACTIVE	2.3 KM
Thunderboat CO	Spring Grove	All Other Miscellaneous Manufacturing 339999	UNVERIFIED	2.3 KM
Marathon 132	Spring Grove	All Other Miscellaneous Manufacturing 339999	UNVERIFIED	2.5 KM
Knoll Steel INC	Spring Grove	All Other Miscellaneous Manufacturing 339999	UNVERIFIED	2.8 KM

Every listed plant in McHenry 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 EIS · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA FRS	EXISTENCE	JUN 2017	JAN 2021

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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