Clean Air Act stationary source · ICIS-AIR CASCA00006071CA031
TST INC, Fontana, CA: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 18Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
TST INC, at 11601 ETIWANDA AVE ATTN: EHS, Fontana in San Bernardino County, California, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. San Bernardino County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.
Identity
| Facility as filed | TST INC |
|---|---|
| ICIS-AIR ID | CASCA00006071CA031 |
| EPA facility registry ID | 110000479296 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 11601 ETIWANDA AVE ATTN: EHS, Fontana, CA 92337 |
| County | San Bernardino County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Primary metal manufacturing (NAICS 3313) |
| SIC code | 3341 |
| EPA region | 09 |
| Local air agency | South Coast Air Quality Management District (Grantee) |
Cited to the EPA ICIS-AIR facility file (ECHO download).
Programs and pollutants
Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs TST INC is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.
Compliance evaluations
- 18Evaluations since January 1, 2017
- 9Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| June 13, 2024 | PCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 13, 2024 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| May 23, 2024 | PCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 27, 2024 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| August 12, 2022 | PCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| August 11, 2022 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 8, 2022 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 30, 2021 | PCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 23, 2021 | FCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 4, 2020 | PCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 11, 2020 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 25, 2019 | PCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 25, 2019 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 12, 2019 | PCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 24, 2018 | PCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 24, 2018 | FCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| November 3, 2017 | FCE Off-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 28, 2017 | PCE On-Site | Local | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
Violations
- 0Violation determinations since January 1, 2017
- 0Of them high-priority
A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.
EPA’s violation history file holds no violation for ICIS-AIR CASCA00006071CA031 since January 1, 2017.
Enforcement and penalties
0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.
Informal enforcement
EPA’s informal action file holds no notice or warning for ICIS-AIR CASCA00006071CA031 since January 1, 2017.
Stack tests
- 8Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| December 15, 2023 | Pass | Local |
| November 17, 2023 | Pass | Local |
| December 19, 2020 | Pass | Local |
| December 16, 2020 | Pass | Local |
| December 12, 2020 | Pass | Local |
| September 16, 2020 | Pass | Local |
| September 16, 2020 | Pass | Local |
| November 25, 2019 | Pass | Local |
Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110000479296 there.
Nearby on the register
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- Every source record in San Bernardino County, A to Z
- Air-emissions sources in California
- Every source record in California, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.