D.C. Mun. Regs. tit. 21, r. 21-1829
A well owner shall obtain written approval from the Department in accordance with the requirements of this chapter for the injection of a substance into a well or an injection system within the District.
A well owner shall obtain an EPA Underground Injection Control Permit or an exemption from such permit for the injection of a substance into a well or an injection system within the District.
A well owner or a person responsible for injecting a fluid into a well by active or passive means shall prevent, to the maximum extent possible, the migration of a hazardous substance, a hazardous waste, or a pollutant beyond the boundary of the property where the well is sited, to a human or ecological receptor, or to the waters of the District.
A well owner or a person responsible for injecting a fluid into a well shall minimize any negative impact to the natural degradation of a contaminant not targeted for treatment by the injection system.
A person responsible for injecting water into a well for testing purposes, including determining soil hydraulic conductivity, shall ensure that the water is clean, potable, and meets the District Water Quality Standards in Chapter 11 of Title 21 of the District of Columbia Municipal Regulations.
D.C. Mun. Regs. tit. 21, r. 21-1829