Wapato Lake Coverage Map

HAB has downloaded and and processed the alum application data from the barge’s guidance and dose control computer system.  The coverage map shows each individual application path that was recorded over the course of the application.  We are extremely pleased with the precise application and uniform coverage of the application zones.  There are no significant…

Day 3 – May 10th

Today the Wapato Lake alum application project was completed on schedule!  Yesterday the exact dose of over 25,000 gallons of alum and buffer were applied in a precise, uniform…and most importantly…safe manner.  The Wapato project marks HAB’s 58th project, all of which have occurred without a safety incident.  This morning we cleaned up our application…

Day 2 – May 9th

HAB enjoyed some beautiful Washington weather and was able to complete the entire Wapato Lake buffered alum application in one day (16,000 gallons of alum and 9,000 gallons of buffer).  Wapato is a sensitive lake with a lower buffering capacity and requires an exact application of the alum and buffer to complete the project safely….

Day 1 – May 8th

HAB spent day one of the project preparing equipment for the application.  This included assembly of the barge’s application boom, programing the barge’s computerized dosing system, setting up on-shore storage tanks and confirming the delivery plan for the alum and buffer.  The lake will remain open for approved uses during the application, but part of…

Wapato Lake Project Description

Wapato Lake is a shallow, 34-acre urban lake located in the City of Tacoma, WA. The lake has a long history of poor water quality with the first closure to recreational use occurring in 1942. Problems at the lake have ranged from swimmers getting rashes, to bad odors, to heavy algae blooms, and to the…