You can find the Rhode Island Department of Environmental Management’s Groundwater Discharge Rules here:
www.dem.ri.gov/pubs/regs/regs/water/gwd14.pdf
Rule 9 is the section pertaining to Groundwater Discharge System Registration, which is applicable to open-loop geothermal activities. The appropriate forms required under Rule 9 can be found here:
www.dem.ri.gov/pubs/forms.htm#gwp