Present in a source dataset, with no recent operating signal.
What they make
Ready-Mix Concrete Manufacturing327320- precast concrete
- utilities
- transportation
- agricultural
- irrigation
- agencies
- Caltrans
- retaining walls
- concrete fences
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Holliday Rock Ontario 28 | Ontario | Ready-Mix Concrete Manufacturing 327320 | LIKELY ACTIVE | 1.8 KM |
| Auburn Tile | Ontario | Concrete Pipe Manufacturing 327332 | UNVERIFIED | 3.8 KM |
| Holliday Rock Chino 18 | Chino | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 7.3 KM |
| Harrington Industrial Plastics LLC | Chino | Plastics Pipe and Pipe Fitting Manufacturing 326122 | REPORTED CLOSED | 9.0 KM |
| Holliday Rock Company - Mountain View | Upland | Ready-Mix Concrete Manufacturing 327320 | LIKELY ACTIVE | 9.8 KM |
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 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, RCRAINFO · EPA site type STATIONARY.
- EPA ECHO compliance recordsOPERATINGfirst seen MAR 2020 · last seen MAR 2020
- EPA Facility Registry ServiceEXISTENCERecord 110070545466 · first seen MAY 2019 · last seen MAY 2019
IN SAN BERNARDINO COUNTY114 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 27 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: JENSEN ENTERPRISES INC DBA JENSEN PRECAST · OCT 2026
- Street address
- EPA: 1850 S PARCO AVE · OCT 2026
- City
- EPA: ONTARIO · OCT 2026
- State
- EPA: CA · OCT 2026
- County (FIPS code)
- EPA: 06071 · OCT 2026
- Coordinates
- EPA: 34.03985,-117.62469 · OCT 2026
- Hazardous waste generator (RCRA)
- EPA ECHO: none · OCT 2026