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Published:
October 1, 2007
Originator:
Chesapeake Bay Program
EPA Number:
903-R-07-005
Categorized in:
Report

The Chesapeake Bay numerical chlorophyll a criteria and reference concentrations were derived to address specific water quality, human and aquatic life impairments when applied in specific seasons and to specific salinity-based tidal habitats. EPA strongly encourages the states to adopt the harmful algal bloom-based numerical chlorophyll a criteria for tidal fresh and oligohaline tidal waters where algal-related impairments are expected to persist even after attainment of the Chesapeake Bay dissolved oxygen and water clarity criteria. This is an addendum to the original report.

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