Multi-Step Plan to Prevent Algae Blooms
Contractors who maintain water features and deal with algae blooms might want to keep abreast of the progress at Lake San Marcos in San Diego County, Calif., where soon a plan to solve a problem caused by nitrogen and phosphorous contamination will begin. The treatment will include adding chemicals that make the phosphorous inert, and the removal of water from the deeper layers of the lake, which have higher concentrations of phosphorous and nitrogen. https://www.vwd.org

Innovative Way to Combat Beach Damage
Erosion control mattresses are often packed with stone but can be filled with other material if needed as happened to help prevent the loss of shoreline at Kuhio Beach in Honolulu, where a mattress was filled with sand. The geo-synthetic materials for the 90-foot long apparatus reportedly cost around $3,000. https://tinyurl.com/yd4m7sk9