The decision this case can inform
Use this record when designing a multi-plant compliance system that joins control equipment, continuous monitoring, energy review, and obligation tracking.
EPA/DOJ settlement of alleged violations at five plants. The outcome is an estimated settlement impact, not a published post-control annual inventory or admission of liability.
What the public record actually establishes
- F1
The case covered five plants and seven kilns in Knoxville, Demopolis, Louisville, New Braunfels, and Odessa.
- F2
The settlement required selective non-catalytic reduction on all seven kilns and certified continuous NOx and SO₂ monitoring.
- F3
It also required diagnostic energy audits and $150,000 in mitigation projects.
- F4
EPA estimated more than 4,000 tons of NOx reduction, approximately $10 million in controls, and a $1.69 million civil penalty.
Facts and reported results are kept separate from the lesson a plant may choose to test.
Operating context
EPA and DOJ alleged unpermitted modifications and inadequate NOx/SO2 controls at five cement plants.
Intervention or finding
Settlement required SNCR on seven kilns, stringent limits, certified monitoring, diagnostic energy audits, and mitigation projects.
Documented result
EPA described more than 4000 tons of NOx reduction as settlement impact.
Plant interpretation
Connect continuous control operation, CEMS quality, permit limits, maintenance, and energy audits to daily management.
Transfer boundary
Settlement estimate; no later measured annual total in the cited record.
Questions to verify at your plant
These are decision checks, not operating instructions. Resolve them through local risk assessment, technical review, and authorization.
- 01
Are emission limits translated into control availability, reagent, alarm, maintenance, calibration, and operator response requirements?
- 02
Does data assurance cover CEMS certification, drift, missing data, substitution rules, and timely exception review?
- 03
Are energy audits connected to funded action plans without weakening environmental control performance?
- 04
Can corporate governance see obligation status and recurring performance at each kiln, not only at settlement milestones?