2023 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2022 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2020 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2019 Washington Code 90.48.250

2018 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2016 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2015 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2014 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2013 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge

2009 Washington Code 90.48.250 – Agreements or contracts to monitor waters and effluent discharge