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 October 18, 2025.
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 October 18, 2025.
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
October 18, 2025
https://www.accesswater.org/?id=-10079160CITANCHOR