Facility	City	Industry	Status	Distance
Sem Materials, INC.	Ardmore	Asphalt Paving Mixture and Block Manufacturing 324121	UNVERIFIED	0.0 KM
Valero Ardmore Refinery	Ardmore	Petroleum Refineries 324110	LIKELY ACTIVE	0.5 KM
Ardmore Refinery	Ardmore	Petroleum Refineries 324110	LIKELY ACTIVE	1.3 KM
Ardmore Roofing Plt	Ardmore	Asphalt Shingle and Coating Materials Manufacturing 324122	UNVERIFIED	2.0 KM
Overland Materials & Manufacturing	Ardmore	Asphalt Paving Mixture and Block Manufacturing 324121	LIKELY ACTIVE	3.3 KM

Every listed plant in Carter 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.

Sem Materials, INC.

Ardmore, OK

UNVERIFIED324121

WHERE THIS RECORD COMES FROM — 3 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, NPDES, TRIS, TSCA · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA TRI	OPERATING	DEC 2023	DEC 2023
EPA FRS	EXISTENCE	AUG 2016	AUG 2016
EPA ECHO	OPERATING	FEB 2004	FEB 2004

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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