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: Hecla Greens Creek 920 Level Water Treatment System
Location: Greens Creek Mine
Owner/Employer: Hecla Greens Creek 920 Level
Type of Facility: Water Treatment
Classification Level: Class 1

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) - 10,000 - 50,0002
Water Supply Source - Surface water6
Pretreatment - Roughing filter: Cartridge filter2
Activated Carbon - Granular activated carbon contactors4
Filtration - Membrane filtration8
Disinfection - Liquid and powdered hypochlorites3
Storage - Water storage tank, for achieving CT3
Total28

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
Clifford UmsteadPrimaryWT-112/31/2024No
William GrossBackup   
Nicholas StrilkaPrimaryWT-412/31/2026No
Max NicholsPrimaryWT-112/31/2027No
James ColePrimaryWT-212/31/2026No

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