D.C. Mun. Regs. tit. 21, r. 21-110
This section and § 111 are promulgated in accordance with D.C. Official Code § 8-205 (2001), under authority set forth in D.C. Code § 8-205(g) (2001).
The Department shall maintain all water service pipe from the street mains to the property line.
If a portion of the structure (such as a porch, vault, or footing) projects beyond the property line, the Department shall maintain the water connection only to the outermost structural projection of the premises.
All pipes and appurtenances on private property shall be maintained by and at the expense of the property owner.
When action is necessary to expedite or facilitate the maintenance of a water connection, the Department may perform maintenance or repair work on private property if agreed to in advance by the property owner. The cost of the work, including overhead expenses, shall be paid by the property owner.
Excavations in public space made and left open by the Department for the use or convenience of registered plumbers employed by private owners or other parties for the repair of water service pipes or other water appurtenances, shall be promptly reported to the police division or precinct with jurisdiction over the area of excavation by telephone, and followed by written confirmation.
D.C. Mun. Regs. tit. 21, r. 21-110