Alaska Certified Water/Wastewater Operator Database
Regulated System Record

The current classification scoring system for the selected facility is shown below. You may also return to search results.

Facility Name: Thorne Bay Water Treatment System
Location: Thorne Bay
Owner/Employer: Thorne Bay, City of
Type of Facility: Water Treatment
Classification Level: Class 2

Water treatment systems are classified according to a point rating system. Point values are recognized for each of the various components found in a treatment plant. Points are totaled once all components have been recognized. The total number of points determines the classification of the water treatment system. Click here to view the entire list of components for which points can be counted for water treatment. The specific components that have been recognized toward the classification of this water treatment system are as follows:

Score CategoryScore
Size (Peak day design capacity, gallons per day) - 50,001 - 100,0004
Water Supply Source - Surface water6
Adjustment and Corrosion Control - pH adjustment3
Coagulation - Primary coagulant5
Mixing - In-line static mixers0
Filtration - Granular media8
Filtration - Membrane filtration8
Disinfection - Liquid and powdered hypochlorites3
Sludge Treatment - Discharge to on-site pond, septic tank, or lagoon2
Storage - Water storage tank, for achieving CT3
Total42

Total Score    System Classification
1-30 Class 1
31-55 Class 2
56-75 Class 3
>75 Class 4

Operators:
NameRoleCert. LevelExpiration DateCEU Req. Met
Samuel SawyerPrimaryWT-212/31/2027No
William JenningsPrimaryWT-112/31/2026No

For more information, please review the Water and Wastewater Operator Certification and Training Regulation (18 AAC 74).
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