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: Unalaska Wastewater Treatment System
Location: Unalaska
Owner/Employer: Unalaska, City of
Type of Facility: Wastewater Treatment
Classification Level: Class 2

Wastewater 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 wastewater treatment system. Click here to view the entire list of components for which points can be counted for wastewater treatment. The specific components that have been recognized toward the classification of this wastewater treatment system are as follows:

Score CategoryScore
Size (Peak day design capacity, gallons per day) - 1,000,001 - 5,000,00016
Pretreatment - Mechanically cleaned screens2
Pretreatment - Grit removal2
Primary Treatment - Primary clarifiers with chemical addition7
In-plant Odor Control - Wet scrubber6
Sludge Thickening and Dewatering - Sludge bagger3
Sludge Stabilization and Conditioning - Chemical stabilization with lime3
Solids Disposal - Off-site disposal1
Disinfection - Liquid and powdered hypochlorites3
Disinfection - Additional points if hypochlorites are generated on-site2
Disinfection - Dechlorination with dechlorination agents other than gas3
Other Treatment - Other wastewater treatment5
Total53

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
Miguel CristobalPrimaryWWT-212/31/2026No
Brian BrownPrimaryWWT-212/31/2026No
Trever ShaishnikoffPrimary   
James EsnardoPrimary   

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