Hi-Grade Materials-Indio Ready Mix

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
CCCalportland CO Vista Chino Plant	Thousand Palms	Ready-Mix Concrete Manufacturing 327320	◐ LIKELY ACTIVE	15.7 KM
TPThousand Palms Plant 26	Thousand Palms	Ready-Mix Concrete Manufacturing 327320	◐ LIKELY ACTIVE	16.0 KM
Scaniq LLC	Palm Desert	Powder Metallurgy Part Manufacturing 332117	● ACTIVE	17.4 KM

Every listed plant in Riverside County

Also at this address

No other federal record shares this street address.

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 CARB-TCH, EIS · EPA site type STATIONARY.

• OSHA injury and illness reportsOPERATING
  Record 317905 · first seen DEC 2025 · last seen DEC 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110071794025 · first seen AUG 2024 · last seen AUG 2024

ALSO RECORDED ASHI-GRADE MATERIALS CO.

IN RIVERSIDE COUNTY77 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 25 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: HI-GRADE MATERIALS CO. · JUL 2026

Street address

EPA: 38050 MONROE ST · JUL 2026

City

EPA: INDIO · JUL 2026

State

EPA: CA · JUL 2026

County (FIPS code)

EPA: 06065 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 33.767480276861,-116.23407775973 · JUL 2026 · ON THIS PAGE

EPA: 33.7689,-116.23621 · JUL 2026

Employees (band)

OSHA: 20-99 · DEC 2025