Westlake Corporation is proud to announce that it’s chlor-alkali unit at its Calvert City plant has earned the prestigious “Diamond Level” status from The Chlorine Institute (CI), the highest level of recognition for safety and environmental excellence. The award was presented during CI’s 2025 Annual Meeting and celebrates Calvert City’s outstanding record of zero injuries, zero incidents, and zero releases over the past five years within its chlor-alkali operations.
The Calvert City facility was one of two U.S. chlor-alkali producers and among 39 North American and international chlor-alkali producers, packagers, bleach manufacturers, and chlorine end-user sites to receive this honor.
“Receiving Diamond Level status reflects our team’s unwavering commitment to operational excellence and the safety of our employees, our community, and the environment,” said Ivan Birrell, Senior Plant Manager at Westlake Calvert City. “This recognition reinforces Westlake’s core values and our continuous efforts to achieve and exceed the highest industry standards.”
Diamond Level recognition is awarded based on 2024 safety and environmental performance data. Facilities earning this top-tier designation must have maintained:
- Zero recordable injuries,
- Zero reportable quantity (RQ) environmental incidents, and
- Zero Risk Management Plan (RMP) reportable accidents over five consecutive years within their chlor-alkali operations.
“CI’s Safety and Environmental Recognition Program highlights our industry’s commitment to protecting people, communities, and the environment,” said CI President Frank Reiner. “Our members embrace the ‘Aim for Zero’ philosophy. This year’s Diamond Level facilities didn’t just aim for zero — they achieved it.”
Reiner also referred to the Diamond Level as the “Triple Crown” of safety and environmental achievement, underscoring the role of CI’s training, guidance materials, and best practices in helping facilities drive continuous improvement and deliver value across the chemical supply chain.
Chlorine plays a vital role in modern life — not only in disinfecting drinking water but also in manufacturing pharmaceuticals, medical devices, plastics like PVC, and supporting metal refining. As a leading manufacturer in this sector, Westlake is committed to advancing safe, secure, and sustainable operations.
