D.C. Mun. Regs. tit. 21, r. 21-1812

Current through Register Vol. 71, No. 49, December 6, 2024

Rule 21-1812 - WELL CONSTRUCTION REQUIREMENTS: SANITARY PROTECTION

1812.1

A well owner is responsible for sanitary protection of the well during construction, maintenance, and abandonment.

1812.2

During well construction, the well and any water-bearing formation shall be protected against contaminants from any source, including surface water drainage.

1812.3

If construction of a well is suspended for any period of time prior to the completion of the well, the well annulus or open borehole shall be covered and protected from surface water drainage and the vertical migration of contaminants and other materials through the well casing and well annulus, and the well casing capped in accordance with the requirements of § 1820.1.

1812.4

A soil boring or well meeting the requirements of § 1818.2 shall be covered and protected from surface water drainage and the vertical migration of contaminants and other materials when not in use.

1812.5

In the event that contaminants not addressed in the well construction building permit are encountered during the construction, maintenance, or abandonment of a well, the well owner shall:

(a) Stop all well construction work and related activities;

(b) Immediately notify the Department and other applicable emergency personnel;

(c) Propose immediate corrective action;

(d) Implement Department-approved corrective actions to prevent an imminent hazard to the public health and safety, or the environment; and

(e) If additional action is necessary to investigate or remediate the contaminants, or is required by this chapter or requested by the Department, develop and submit a well construction work plan to the Department for review and approval.

1812.6

In the event that contaminants not addressed in the well construction building permit are encountered during the construction, maintenance, or abandonment of a well under a Department regulatory action, the well owner shall notify the Department and other applicable emergency personnel and take necessary measures to contain and minimize the spread of contaminants.

1812.7

All materials, including drilling fluids or muds, used in the construction of a well shall be free of contaminants and shall not cause the groundwater to become polluted in violation of District or federal laws and regulations.

D.C. Mun. Regs. tit. 21, r. 21-1812

Final Rulemaking published at 63 DCR 13424 (10/28/2016)