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WEF Wastewater Reference Guide
111.09
ACRP Wastewater and Water Reference Guide
64.64
106.04
ACRP Chlorine Reference Guide
57.57
WEF Water Reference Guide
166.64
WEF Belt Press Reference Guide
94.93
AWWA Filter Operations Field Guide Reference Guide
19.0
ACRP Water Reference Guide
42.93
AWWA Water Conservation for Small and Medium-Sized Utilities Reference Guide
88.0
60.6
WEF Water Resource Recovery Facilities Reference Guide
161.59
WEF Wastewater Treatment Plant Reference Guide
139.37
AWWA Water Filtration Practices: Including Slow Sand Filters and Precoat Filtration Reference Guide
79.0
ACRP Distribution System Operators Reference Guide
AWWA Selecting Disinfectants in a Security-Conscious Environment Reference Guide
AWWA Chlorine Safety Pocket Guide Reference Guide
18.0
CSUS Small Water System Operation and Maintenance
144.28
WEF Green Infrastructure Reference Guide
171.69
WEF Collection Systems Operators’ Guide to Preparing for the Certification Examination Reference Guide
104.99
WEF Public Works Departments Reference Guide
126.24