Gray Mountain Hma Plant

What they make

Where it is

Other plants nearby

Every listed plant in Maricopa 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.

Where this record comes from

2 sources hold this plant, and 5 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 AIR · EPA site type PORTABLE.

• EPA ECHO compliance recordsOPERATING
  first seen AUG 2026 · last seen AUG 2026
• EPA Facility Registry ServiceEXISTENCE
  Record 110070916479 · first seen MAR 2021 · last seen MAR 2021

ALSO RECORDED ASFLAGSTAFF HMA PLANT

IN MARICOPA COUNTY59 other plants share this one’s industry (Petroleum and Coal Products Manufacturing, NAICS 3241); 6 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: GRAY MOUNTAIN HMA PLANT · OCT 2026

Street address

EPA: 3201 E ELWOOD ST · OCT 2026

City

EPA: PHOENIX · OCT 2026

State

EPA: AZ · OCT 2026

Coordinates

EPA: 33.4169,-112.01236 · OCT 2026