The Comprehensive Assessment and Listing Methodology (CALM) is how the Department evaluates existing and readily available surface water quality data and other information to determine whether or not surface water quality standards are being attained. Written listing methodologies are necessary to consistently determine whether or not surface waters are meeting their designated and existing uses. Protocols are updated as new and improved assessment tools and approaches become available.
2021 CALM
2021 Final CALM with appendices
2021 Public Involvement Plan (PIP)
2021 Public Notice (English and Español)