Water Environment Federation.
"1: Introduction to Health, Safety, and Security."
In Safety, Health, and Security Standards for Water Resource Recovery, MOP 1, 7th Edition.
Water Environment Federation, 2021.
Accessed February 9, 2026.
Access Water, https://www.accesswater.org/?id=-10079160CITANCHOR.
Water Environment Federation.
"1: Introduction to Health, Safety, and Security."
In Safety, Health, and Security Standards for Water Resource Recovery, MOP 1, 7th Edition.
Water Environment Federation, 2021.
Accessed February 9, 2026.
https://www.accesswater.org/?id=-10079160CITANCHOR.
Water Environment Federation
Safety, Health, and Security Standards for Water Resource Recovery, MOP 1, 7th Edition
Access Water
Water Environment Federation
September 15, 2021
February 9, 2026
https://www.accesswater.org/?id=-10079160CITANCHOR