Facility	City	Industry	Status	Distance
Bestway Concrete Co-longmont	Longmont	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	0.1 KM
Siegrist Construction CO -del Camino Pit	Longmont	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	1.5 KM
Andesite Rock CO	Longmont	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	2.3 KM
Martin Marietta - Del Camino Ready Mix	Longmont	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	3.1 KM
Asphalt Specialties Co., INC. Plant #3	Firestone Area	Ready-Mix Concrete Manufacturing 327320	LIKELY ACTIVE	3.6 KM

Every listed plant in Weld County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Hall-irwin CORP - Portable Blending Unit

Firestone, CO

UNVERIFIED324121

WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 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 AIR, AIRS/AFS, EIS · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA ECHO	OPERATING	MAY 2024	MAY 2024
EPA FRS	EXISTENCE	JUN 2017	JUN 2017

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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