Clean Air Act stationary source · ICIS-AIR IL000099825AAA
US SILICA CO, Ottawa, IL: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 10Compliance evaluations since January 1, 2017
- 1High-priority violations since January 1, 2017
- 1Formal enforcement actions since January 1, 2017
US SILICA CO, at 701 N 3029TH RD, Ottawa in La Salle County, Illinois, 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”. 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 | US SILICA CO |
|---|---|
| ICIS-AIR ID | IL000099825AAA |
| EPA facility registry ID | 110000845925 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 701 N 3029TH RD, Ottawa, IL 61350-2533 |
| County | La Salle County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Mining and quarrying (NAICS 2123) |
| SIC code | 1446 |
| EPA region | 05 |
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 US SILICA CO 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
- 10Evaluations since January 1, 2017
- 3Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| September 10, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 30, 2025 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| January 6, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| February 7, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| June 21, 2022 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 25, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| November 16, 2021 | PCE On-Site | U.S. EPA | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| November 16, 2021 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| March 26, 2019 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| March 8, 2018 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Violations
- 1Violation determinations since January 1, 2017
- 1Of 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.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| June 6, 2018 | HPV day-zero determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
Enforcement and penalties
1 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.
| Date | What EPA recorded | Agency | Penalty, as filed |
|---|---|---|---|
| November 26, 2018 | Administrative Order | State | $0 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| June 28, 2018 | Notice of Violation | State |
Stack tests
- 6Stack tests since January 1, 2017
- 1Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| December 16, 2025 | Pass | State |
| February 25, 2022 | Pass | State |
| May 21, 2021 | Pass | State |
| July 19, 2019 | Pass | State |
| February 26, 2019 | Fail | State |
| February 24, 2017 | Pass | State |
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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How we handle your data → Privacy
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 110000845925 there.
Nearby on the register
- Air-emissions sources in La Salle County
- Every source record in La Salle County, A to Z
- Air-emissions sources in Illinois
- Every source record in Illinois, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.