In this section, “border property” means property that: is located: on a boundary line with the District of Columbia; and within one–half mile of: a regional transit district or neighborhood center in Prince George’s County; and an existing mass transit rail station that is operated by the Washington Metropolitan Area Transit Authority; lacks frontage on a right–of–way in Prince George’s County to connect water service, sewer service, or water and sewer service; qualifies as an expedited transit–oriented development project under the zoning laws of the county; and obtained site plan approval in the county on or after January 1, 2021, but before January 1, 2023. “Border property” includes any property, regardless of the date of site plan approval or site plan revision, that is: adjacent to a property that obtained site approval under paragraph (1)(iv) of this subsection; and owned by the same entity that owns the property that obtained site approval under paragraph (1)(iv) of this subsection. Subject to paragraph (2) of this subsection, the Commission may enter into a contract or agreement concerning the construction, maintenance, and operation of the water supply, sewer, or drainage systems under its control or under the control or ownership of the District of Columbia or any other agency, authority, or commission specified in this section. The Commission may enter into a contract or agreement under paragraph (1) of this subsection with: the District of Columbia; for systems located in border properties, the District of Columbia Water and Sewer Authority; any federal, state, county, or municipal authority in the State or any other state; or any public water, sewer, or drainage commission in the State or any other state. The Commission may contract with, as a primary party or as a subcontractor, or invest in any person for the ownership, joint–venturing, management, operation, supervision, assistance, participation, or any other activity relating to the design, construction, operation, maintenance, or management of water or wastewater systems, including systems, services, expertise, intellectual property, and techniques developed in connection with, or usable or marketable with respect to, water or wastewater systems. Notwithstanding any other provision of law and subject to the requirements of this subsection, the Commission may contract with the District of Columbia or the District of Columbia Water and Sewer Authority concerning the construction, maintenance, and operation of a water supply, sewer, or drainage system by authorizing the District of Columbia or the Authority to provide water service, sewer service, or water and sewer service to a border property. Any contract entered into under this subsection between the Commission and the District of Columbia or the District of Columbia Water and Sewer Authority shall: allocate the maintenance costs of the water supply, sewer, or drainage system; allocate billing and collection responsibilities; require multifamily housing units served under the contract to use master meters; notwithstanding § 25–501(b)(2) of this division, provide for a service rate setting procedure for water service and sewer service that is based on the amount of water used; provide notice of the Commission’s authority to: charge the account of each customer served under the contract: the minimum or ready to serve charges set by the Commission under § 25–502 of this division; a fee that accounts for any additional operational costs that the Commission may incur in carrying out the duties under a contract entered into under this section if those duties are not required for other customer accounts within the sanitary district, as defined in § 16–101 of this article; and any other fee required by State law, including the Bay Restoration Fee under § 9–1605.2 of the Environment Article; inspect, read, and replace meters and other equipment; and in accordance with this division and the regulations adopted by the Commission, terminate the water service of a customer served under the contract; require the Commission and the District of Columbia or the District of Columbia Water and Sewer Authority to notify customers of any health and safety advisories; based on a notification schedule agreed to by the Commission and the District of Columbia or the District of Columbia Water and Sewer Authority, require notification to customers served under the contract that: the District of Columbia or the District of Columbia Water and Sewer Authority is the provider of water service, sewer service, or water and sewer service to the border property; the Commission is the authorized billing agent for the District of Columbia or the District of Columbia Water and Sewer Authority; the Commission is authorized to inspect, read, and replace meters and other equipment; lateral water service and sewer lines are the responsibility of the property owner and not the Commission, the District of Columbia, or the District of Columbia Water and Sewer Authority; the customer may be able to participate in a Customer Assistance Program or an Indirect Customer Assistance Program established under § 25–501.1 of this division; and the customer may be charged higher service rates for water service and sewer service than other Commission customers because the District of Columbia or the District of Columbia Water and Sewer Authority, and not the Commission, is the direct provider of water service, sewer service, or water and sewer service; and limit the ability of the Commission, the District of Columbia, or the District of Columbia Water and Sewer Authority to reduce services provided to a customer served under the contract. Any contract or agreement entered into under this section has the full effect of a contract between the District of Columbia and the State or between the other agencies, authorities, or persons described in the section and this State. The authority granted in this section is in addition to, and is not limited by, the authority granted by any other Act of the General Assembly.