Some substances found naturally in rocks or soils (such as iron, manganese, arsenic, chlorides, fluorides, sulfates, or radionuclides) can become dissolved in groundwater through naturally occurring weathering processes. The term weathering refers to natural processes that break down rocks and soils within the environment.
Once dissolved, these substances are transported to groundwater and may later be found in high concentrations in the groundwater. While some of these substances are also associated with industrial processes, naturally occurring background conditions should be considered when assessing groundwater data.
2017 Annual Groundwater Monitoring and Corrective Action Report
2018 Annual Groundwater Monitoring and Corrective Action Report
2019 Annual Groundwater Monitoring and Corrective Action Report
2020 Annual Groundwater Monitoring and Corrective Action Report
2021 Annual Groundwater Monitoring and Corrective Action Report
Establishment of Assessment Monitoring
Groundwater Protection Standards
Alternate Source Demonstration Report