What decision does the DEQ make if groundwater is present at a site?

The decision made by the Department of Environmental Quality (DEQ) when groundwater is present at a site involves determining the appropriate course of action for cleanup based on existing regulations and conditions at the site. If groundwater is present, the DEQ typically opts to continue cleanup efforts while adhering to the Soil Matrix Rules. These rules are guidelines that help ensure both soil and groundwater contamination are managed effectively.

Continuing cleanup under the Soil Matrix Rules allows for a comprehensive approach that addresses both soil and groundwater contamination issues concurrently, ensuring that potential impacts to groundwater are mitigated while also handling any soil contamination present.

The decision to continue cleanup is critical as it reflects a proactive approach to environmental health, allowing for timely remediation efforts that prevent further environmental degradation. In contrast, other options such as ceasing all activities or assessing soil contamination only would not adequately address the complexities of a site where groundwater is present, potentially leaving significant environmental risks unaddressed.