Calmat CO Dba Shamrock Materials
760 N of Wst End of Ks Rd, Napa, CA 94559
Present in a source dataset, with no recent operating signal.
What they make
Ready-Mix Concrete Manufacturing327320Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Boral Stone Products LLC | American Canyon | Pottery, Ceramics, and Plumbing Fixture Manufacturing 327110 | LIKELY ACTIVE | 5.8 KM |
| Foley Products Company - Napa | American Canyon | Concrete Pipe Manufacturing 327332 | LIKELY ACTIVE | 5.9 KM |
| 106045 - Mammoth Precast 2024-2027 | Fairfield | Other Concrete Product Manufacturing 327390 | LIKELY ACTIVE | 13.7 KM |
| Cordeiro Vault CO INC | Vallejo | Ready-Mix Concrete Manufacturing 327320 | LIKELY ACTIVE | 18.9 KM |
| Cemex Lake Herman/vallejo | Vallejo | Asphalt Paving Mixture and Block Manufacturing 324121 | LIKELY ACTIVE | 19.0 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
1 source holds this plant, and 6 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 EIS · EPA site type STATIONARY.
- EPA Facility Registry ServiceEXISTENCERecord 110021335713 · first seen JUN 2017 · last seen AUG 2024
ALSO RECORDED ASSHAMROCK MATERIALS INC
IN NAPA COUNTY7 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 2 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: CALMAT CO DBA SHAMROCK MATERIALS · OCT 2026
- Street address
- EPA: 760 N OF WST END OF KS RD · OCT 2026
- City
- EPA: NAPA · OCT 2026
- State
- EPA: CA · OCT 2026
- County (FIPS code)
- EPA: 06055 · OCT 2026
- Coordinates
- EPA: 38.260895,-122.282242 · OCT 2026