2023 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2022 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2020 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2019 Washington Code 90.54.140

2018 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2016 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2015 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2014 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2013 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source

2009 Washington Code 90.54.140 – Protection of groundwater aquifers if sole drinking water source