D.C. Mun. Regs. tit. 21, § 1814
Well Construction Requirements: Drilling Fluids
Effective Oct 28, 201663 DCR 13424Authority: District Department of the Environment Establishment Act of 2005, effective February 15, 2006 (D.C. Law 16-51; D.C. Official Code §§ 8-151.01 et seq. (2013 Repl.)); the Water Pollution Control Act of 1984, effective March 16, 1985 (D.C. Law 5-188; D.C. Official Code §§ 8-103.01 et seq. (2013 Repl. & 2016 Supp.)) (the Water Pollution Control Act); and Mayor’s Order 2006-61, dated June 14, 2006. Source: Final Rulemaking published at 63 DCR 13424 (October 28, 2016).District of Columbia, Office of the Secretary
1814.1 Only potable water shall be used to create a water-based drilling fluid.
1814.2 The use of a drilling fluid containing additives shall only be permitted if:
(a) Use of the additive is approved by the Department in the well construction building permit application;
(b) The additive is used in accordance with manufacture's recommendations; and
(c) The additive does not pose a hazard to public health and safety or the environment.
Source: Final Rulemaking published at 63 DCR 13424 (October 28, 2016).