Data / Environmental compliance / Colorado / Cemex Construction Materials South LLC
Cemex Construction Materials South LLC, Lyons, CO: $2,798,425 in penalties, 6 formal enforcement actions (EPA ECHO)
EPA's ECHO database records 4 inspections, 5 informal enforcement actions and 6 formal enforcement actions at Cemex Construction Materials South LLC, 5134 Ute Highway, Lyons, CO 80540, in the five years to November 1, 2026. Penalties total $2,798,425, the latest $855,000 on May 11, 2026. The facility was in significant noncompliance in 12 of the last 12 quarters.
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- Site
- 5134 Ute Highway, Lyons, CO 80540
- EPA registry ID (FRS)
- 110000467450
- Industry
- 212312 Crushed and Broken Limestone Mining and Quarrying; 212319 Other Crushed and Broken Stone Mining and Quarrying; 32731 Cement Manufacturing; 327310 Cement Manufacturing
- County
- Boulder
- Programs
- Clean Air Act, Clean Water Act, Hazardous waste (RCRA)
- Compliance status
- Significant Violation
- Inspections
- 4, latest August 20, 2025
- Formal actions
- 6, latest May 11, 2026
- Informal actions
- 5, latest October 7, 2025
- Penalties
- $2,798,425 in 5 penalties
- ECHO facility report
- echo.epa.gov
By program
Inspections, enforcement actions and penalties of the last five years in each EPA program that covers the facility, as the program systems record them. Federal case penalties are listed under federal enforcement cases. Quarters count the last 12.
| Program | Inspections | Informal actions | Formal actions | Penalties | Latest penalty | Latest amount | Quarters with violations | Quarters in significant noncompliance | Status |
|---|---|---|---|---|---|---|---|---|---|
| Clean Air Act | 4 | 5 | 6 | $2,798,425 | May 11, 2026 | $855,000 | 12 | 12 | Violation Addressed; State Has Lead Enforcement |
| Clean Water Act | 0 | 0 | 0 | $0 | $0 | 0 | 0 | No Violation Identified | |
| Hazardous waste (RCRA) | 0 | 0 | 0 | $0 | $0 | 0 | 0 | No Violation Identified |
Also on SpecStream
- Environmental compliance in Nonmetallic Mineral Mining and Quarrying in Colorado
- Environmental compliance in Colorado
Updated November 7, 2026. Read from US EPA, Enforcement and Compliance History Online (ECHO). Public domain (U.S. government work). Counts and penalties cover the five years to November 1, 2026 as ECHO publishes them in its exporter and case downloads, drawn from EPA's air, water, hazardous waste and drinking water systems and from the states that report to them. Records can be incomplete, late or corrected after this page was read. A federal case penalty that names several facilities is shown on each of them and counted once in industry, state and national totals. Each row links to EPA's own report. A quarter in significant noncompliance is EPA's term for a serious violation status in a program, not a finding of fault beyond that status. This page uses US EPA data and is not endorsed or certified by the US EPA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.