Velarion Records

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EPA Air · stack tests by state, industry and year

Mining and quarrying (NAICS 2123): stack tests in California, 2020

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2020 at a California source whose primary industry code is NAICS 2123. A facility filing more than one industry code is counted under the first one on its record.

Mining and quarrying (NAICS 2123) in California, other years

Other industries in California, 2020

Air-emissions stack tests recorded in California, 2020

DateFacilityWhereKindAgency
2020-10-26GRANITE ROCK WILSONAROMAS, San Benito, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-09-01TAFT PRODUCTION CO.TAFT, Kern, CAPassLocal
2020-08-18ARCOSA LIGHTWEIGHT, FRAZIER PARK (1603) — high-priority violation on fileFRAZIER PARK, Ventura, CAPassLocal
2020-07-24SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-05-22SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-05-21SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-05-21SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-05-13SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-04-28SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-04-24SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal
2020-01-24SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on fileTRONA, San Bernardino, CAPassLocal

Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.