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Groundwater Protectiveness Demonstrations

The following references are existing studies that conclude groundwater will not be contaminated by typical stormwater discharges.  They are specific to particular geologic formations and setbacks (i.e., a minimum depth to groundwater and a minimum distance to water wells). Permit applicants can cite these documents as being protective of groundwater quality at their sites if their UICs are within the same geologic formation(s) and meet the setbacks described in the referenced document. 

Fact sheet: Groundwater Protectiveness Demonstrations for UIC Permits


For questions about UIC applications please contact the UIC Program via Your DEQ Online Helpdesk.

Alternatively you may email the UIC program at:, or call the UIC Permit Coordinator at 503-229-5623.

For technical UIC- related questions please contact:
Kevin Weberling
UIC Senior Hydrogeologist

For questions about policy and program development please contact:

Derek Sandoz
UIC Program Coordinator