Alpha One Diving
Is your
Healthy Bay Diving Service
We clean boat hulls in Shelter Island Yacht Basin (SIYB) San Diego, California

The EPA has determined that SIYB is over the
Total Maximum Daily Load (TMDL) for Copper.

The California Regional Water Quality Control Board San Diego has found that 90% of the Copper in SIYB comes from recreational boats docked in the Basin.

The State has commissioned Environmental Scientists to perform water sample tests to determine how copper, from Bottom Paint on the hull of a boat, finds it’s way into the water column.  
The latest Scientific Report has found that 95% of the copper painted onto the hull of a boat, leaves the hull by way of a process called LEACHING. As they are removing growth from a hull, Divers are causing only 5% of the copper to be released.
The source of 90 % of the TMDL in the SIYB would end if Boaters would:
Just stop adding more Copper Paint to their Boat Bottom

This is the tag we attach to your boat after each cleaning.