D.C. Mun. Regs. tit. 21, r. 21-1809
A well shall be constructed in accordance with a well construction work plan approved by the Department and a well construction building permit issued by the Department of Consumer and Regulatory Affairs (DCRA).
A well owner shall provide a minimum of two (2) full business days' notice to the Department prior to commencing the construction of a well.
A well owner shall obtain public utility clearance pursuant to the Underground Facilities Protection Act of 1980, effective March 4, 1981 (D.C. Law 3-129; D.C. Official Code §§ 34-2701 et seq.), as amended.
A well owner shall obtain clearance of underground facilities with non-utility operators, including the Washington Metropolitan Area Transit Authority (WMATA).
A soil boring shall not be subject to the construction standards of § 1809.6, and §§ 1815 through 1826, provided that all the following conditions are met:
A well shall be constructed from the bottom of the boring to the top of the well using materials free of contaminants and compatible with the intended well use and the surrounding surface and subsurface conditions and shall include the following components:
A well shall not hydraulically connect otherwise confined aquifers, causing aquifer cross-contamination, or hydraulically connect those portions of a single aquifer where contaminants exist in separate and definable layers within the aquifer.
D.C. Mun. Regs. tit. 21, r. 21-1809