California Issues Permit for Phoslock Lake Phosphorus Pollution Removal

The San Diego Regional Water Quality Control Board this week issued a general NPDES permit to allow our team to use Phoslock to target and sequester phosphorus pollution in the lakes we manage.  Phosphorus is a key driver to lake eutrophication.  As phosphorus moves to the lake from the watershed, it drives aquatic plant and algae growth.  As these organisms die, they accumulate this phosphorus in the lake sediments where is builds up and fuels increasing levels of these problems.  Over time, the lake will shift to a population of cyanobacteria or blue green algae.  These species produce toxins that are a threat to human health and wildlife. 

There have been a limited number of tools to target and remove phosphorus from lake systems.  Phoslock is a technology that was developed specifically to target free reactive phosphorus in lakes.  It grabs and removes phosphorus from the water column on application.  It will also “cap” lake sediments and grab phosphorus on release.

Having this permit will allow lake associations and other entities to begin to apply and use Phoslock in the State.  For more information, please contact Ian Cormican 760-272-5842


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