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 Pyramid Water Treatment System
Location: Unalaska
Owner/Employer: Unalaska, 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) - 5,000,001 - 10,000,00020
Water Supply Source - Surface water maintaining filtration avoidance criteria under 18 AAC 80.6208
Pretreatment - Roughing filter: Non-backwashable strainer or filter2
Mixing - In-line static mixers0
Disinfection - Gas chlorine12
Disinfection - Ultraviolet light, for meeting required inactivation4
Storage - Water storage tank, for achieving CT3
Total49

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
McKenzi BerryPrimaryWT-212/31/2027No
Erik HernandezBackupWT-212/31/2027No
Rodrey SebastianPrimary   
Yancey NilsenPrimaryWT-Provisional12/31/2027Yes

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