EPA Air · stack tests by state and year

Air-emissions stack tests in California, 2023

7,676Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in California during 2023; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in California, 2023

California, other years

Air-emissions stack tests recorded in California, 2023

Date	Facility	Where	Kind	Agency
2023-06-12	THE WINE GROUP, INC	RIPON, San Joaquin, CA	Pass	Local
2023-06-12	THE WINE GROUP, INC	RIPON, San Joaquin, CA	Pass	Local
2023-06-12	THE WINE GROUP, INC	RIPON, San Joaquin, CA	Pass	Local
2023-06-12	THE WINE GROUP, INC	RIPON, San Joaquin, CA	Pass	Local
2023-06-09	CHEVRON USA — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-09	CHEVRON USA — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-09	CHEVRON USA — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-09	CHEVRON USA — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-09	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	UNIV CAL IRVINE (NSR USE ONLY)	IRVINE, Orange, CA	Pass	Local
2023-06-08	BOWERMAN POWER LFG, LLC	IRVINE, Orange, CA	Pass	Local
2023-06-08	SAN BERNARDINO COUNTY SOLID WASTE MGMT	REDLANDS, San Bernardino, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-08	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	PHILLIPS 66 PIPELINE LLC	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	PHILLIPS 66 PIPELINE LLC	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	PHILLIPS 66 PIPELINE LLC	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	PHILLIPS 66 PIPELINE LLC	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	PHILLIPS 66 PIPELINE LLC	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	PHILLIPS 66 PIPELINE LLC	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	AERA ENERGY LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2023-06-08	SAPUTO CHEESE USA INC	TULARE, Tulare, CA	Pass	Local
2023-06-08	SAPUTO CHEESE USA INC	TULARE, Tulare, CA	Pass	Local
2023-06-08	VRSD OXNARD LANDFILLS	OXNARD, Ventura, CA	Pass	Local
2023-06-07	AMERESCO SANTA CRUZ ENERGY LLC	WATSONVILLE, Santa Cruz, CA	Pass	Local
2023-06-07	CITY OF COLTON	COLTON, San Bernardino, CA	Pass	Local
2023-06-07	NASSCO (NAT'L STEEL & SHIPBUILDING)	SAN DIEGO, San Diego, CA	Pass	Local
2023-06-07	OTAY MESA ENERGY CENTER	SAN DIEGO, San Diego, CA	Pending	Local
2023-06-07	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local
2023-06-07	SYCAMORE COGEN CO — high-priority violation on file	OILDALE, Kern, CA	Pass	Local

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.