Independent Studies & Audits

• Particulate Matter Control Best Practice Pollution Reduction Program, January 2012

  2.51 MB | pdf

• Particulate Matter Control Best Practice Review, July 2018

  770 kB | pdf

• Independent Environmental Compliance Audit, July 2010

  4.87 MB | pdf

• Independent Environmental Compliance Audit, April 2013

  4.61 MB | pdf

• 2013 Independent Environmental Audit Response

  104 kB | pdf

• Independent Environmental Compliance Audit, December 2015

  7.78 MB | pdf

• 2015 Independent Environmental Audit Response

  296 kB | pdf

• Independent Environmental Compliance Audit, January 2019

  9.84 MB | pdf

• 2018 Independent Environmental Audit Response

  333 kB | pdf

• Independent Environmental Compliance Audit, February 2022

  10.3 MB | pdf

• 2021 Independent Environmental Audit Response

  168 kB | pdf

• Independent Water Quality Study, February 2022

  6.35 MB | pdf

• INDEPENDENT ENVIRONMENTAL COMPLIANCE AUDIT, JULY 2024

  9.92 MB | pdf

• 2024 INDEPENDENT ENVIRONMENTAL AUDIT RESPONSE

  210 kB | pdf