See our Exceptions Review Process for information on how to request an exception and for updated staff guidances to help with your exception request.
Reverse Osmosis (RO) Treatment for Secondary Contaminants in Brackish Groundwater at a Public Water System (PWS)
This staff guidance allows the use of computer modeling in lieu of on-site pilot studies for RO filtration treatment for secondary contaminants from a groundwater source.
Exception Criteria for Pressure Maintenance Facilities: Industrial Applications
This document provides guidance on exception requests to the minimum capacity requirements for pressure maintenance facilities. It is applicable to systems classified as non-transient, non-community systems which provide groundwater, surface water, or groundwater under the influence of surface water.