1. (a) the requirements of R309-500 through R309-550 shall govern if the BAT is included in these rules.
2. (b) if the BAT is not included in R309-500 through R309-550, review of plans and specifications for a project will be governed by R309-530-9, New Treatment Processes or Equipment.

EPA has identified Best Available Technologies (BATs) in national regulations regarding drinking water. BATs include Activated Alumina, Coagulation/Filtration, Direct Filtration, Diatomite Filtration, Electrodialysis Reversal, Corrosion Control, Granulated Activated Carbon, Ion Exchange, Lime Softening, Reverse Osmosis, Polymer Addition and Packed Tower Aeration. Where a BAT is used to reduce the concentration of a contaminant:

KEY: drinking water, surface water treatment, low quality ground water, high quality ground water

Date of Last Change: September 13, 2005

Notice of Continuation: February 10, 2025

Authorizing, and Implemented or Interpreted Law: 19-4-104