EPA Air · stack tests by state and year

Air-emissions stack tests in California, 2020

15,352Stack 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 2020; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in California, 2020

California, other years

Air-emissions stack tests recorded in California, 2020

Date	Facility	Where	Kind	Agency
2020-07-14	JR SIMPLOT CO — high-priority violation on file	LATHROP, San Joaquin, CA	Pass	Local
2020-07-14	JR SIMPLOT CO — high-priority violation on file	LATHROP, San Joaquin, CA	Pass	Local
2020-07-14	JR SIMPLOT CO — high-priority violation on file	LATHROP, San Joaquin, CA	Pass	Local
2020-07-14	JR SIMPLOT CO — high-priority violation on file	LATHROP, San Joaquin, CA	Pass	Local
2020-07-14	JR SIMPLOT CO — high-priority violation on file	LATHROP, San Joaquin, CA	Pass	Local
2020-07-13	THE NEWARK GROUP INC, DBA GREIF INC	COMMERCE, Los Angeles, CA	Pass	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-13	CHEVRON USA INC- HEAVY OIL PRODUCTION	COALINGA, Fresno, CA	Fail	Local
2020-07-10	IVANPAH I, II, III	IVANPAH, San Bernardino, CA	Pass	Local
2020-07-10	IVANPAH I, II, III	IVANPAH, San Bernardino, CA	Pass	Local
2020-07-10	SIERRA ALUMINUM, DIV OF SAMUEL, SON & CO	FONTANA, San Bernardino, CA	Pending	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local
2020-07-10	MACPHERSON OIL CO - HEAVY OIL	BAKERSFIELD, Kern, CA	Pass	Local

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