Implementation of the Recommendations of the Blue-Green Algae Task Force; Requires owners of certain onsite sewage treatment & disposal systems to have systems inspected; requires DEP to administer program; requires estimated pollutant load reductions in basin management action plans to meet or exceed specified requirements; revises requirements for allocation of such reductions; requires plans to provide & reevaluate certain mitigation & elimination strategies; requires new or revised plans to list certain spatially focused projects; requires DEP to assess certain projects; requires assessments to be included in plan updates.