Yearly sampling shall be conducted on each of the thirteen sampling stations using the qualitative methodology described in the Primary Headwater Habitat Manual (HHEI) and the Headwater Macroinvertebrate Field Evaluation Index ( HMFEI)anbsp;...
|Title||:||Environmental Protection Agency Mining Policies|
|Author||:||United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment|