Diamonex

7331 William Ave, Allentown, PA 18106

UNVERIFIEDLAST SEEN IN FEDERAL DATA NOV 2021 · 2 SOURCES

Present in a source dataset, with no recent operating signal.

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What they make

Other Basic Inorganic Chemical Manufacturing325180

Where it is

40.58040, -75.61296 · CENSUS TIGER

COUNTY

Lehigh County

METRO AREA

Allentown-Bethlehem-Easton, PA-NJ

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Other plants nearby

Facility	City	Industry	Status	Distance
Airlife Gases Usa, INC.	Macungie	Industrial Gas Manufacturing 325120	ACTIVE	7.4 KM
Geo Specialty Chemicals Trimet Products Group	Allentown	Petrochemical Manufacturing 325110	UNVERIFIED	8.4 KM
Aerc Recycling Solutions a Clean Earth CO	Allentown	Other Basic Inorganic Chemical Manufacturing 325180	LIKELY ACTIVE	11.5 KM
Matheson Tri-gas	Palm	Industrial Gas Manufacturing 325120	LIKELY ACTIVE	17.4 KM
Palm Plant	Palm	Industrial Gas Manufacturing 325120	LIKELY ACTIVE	17.5 KM

Every listed plant in Lehigh County

Also at this address

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

Best Engineered Surface Technologies, LLC

Where this record comes from

2 sources hold 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 NPDES, OSHA-OIS, PA-EFACTS, RCRAINFO · EPA site type STATIONARY.

EPA ECHO compliance recordsOPERATING
first seen NOV 2021 · last seen NOV 2021
EPA Facility Registry ServiceEXISTENCE
Record 110004870907 · first seen APR 2015 · last seen APR 2015

IN LEHIGH COUNTY11 other plants share this one’s industry (Basic Chemical Manufacturing, NAICS 3251); 3 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: DIAMONEX · OCT 2026
Street address: EPA: 7331 WILLIAM AVE · OCT 2026
City: EPA: ALLENTOWN · OCT 2026
State: EPA: PA · OCT 2026
County (FIPS code): EPA: 42077 · OCT 2026
Coordinates: EPA: 40.5804,-75.61296 · OCT 2026
Hazardous waste generator (RCRA): EPA ECHO: none · OCT 2026

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