Facility	City	Industry	Status	Distance
Heidelberg Materials Plymouth Meeting HMA	Plymouth Meeting	Asphalt Paving Mixture and Block Manufacturing 324121	LIKELY ACTIVE	0.6 KM
Camellia Clnr Svc	Flourtown	Petroleum Lubricating Oil and Grease Manufacturing 324191	UNVERIFIED	3.5 KM
Airborne Data Imaging Group, INC	Flourtown	Petroleum Lubricating Oil and Grease Manufacturing 324191	ACTIVE	4.1 KM
Quaker Houghton Pa, INC	Conshohocken	Petroleum Lubricating Oil and Grease Manufacturing 324191	LIKELY ACTIVE	4.7 KM
Quaker Houghton Conshohocken	Conshohocken	Petroleum Lubricating Oil and Grease Manufacturing 324191	LIKELY ACTIVE	4.8 KM

Every listed plant in Montgomery 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.

Heidelberg Materials Plymouth Meeting HMA

Plymouth Meeting, PA

LIKELY ACTIVE324121EMP 1-19

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 · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA ECHO	OPERATING	AUG 2025	AUG 2025
EPA FRS	EXISTENCE	JUN 2017	JUN 2024

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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