§ 143‑355.7.  Water supply development; State‑local cooperation.
(a)	At the request of one or more units of local government, the Department may assist the local government in identifying the preferred water supply alternative that alone or in combination with other water sources will provide for the long‑term water supply needs documented in the local water supply plan and meet all of the following criteria:
(1)	Are economically and practically feasible.
(2)	Make maximum, practical beneficial use of reclaimed wastewater and stormwater.
(3)	Comply with water quality classifications and standards.
(4)	Avoid or mitigate impacts to threatened or endangered species to the extent such species are protected by State or federal law.
(5)	Maintain downstream flows necessary to protect downstream users.
(6)	Do not have significant adverse impacts on other water withdrawals or wastewater discharges.
(7)	Avoid or mitigate water quality impacts consistent with the requirements of rules adopted by the Environmental Management Commission to implement 33 U.S.C. § 1341.
(b)	During the alternatives analysis, the Department shall request relevant information regarding the potential alternatives, including the establishment or expansion of the water supply reservoir or other water supply resources, from other State agencies with jurisdiction over any natural resources that will be impacted under the alternatives identified by the Department. Unless the local government agrees to an extension of time, the Department shall determine the preferred alternative within two years of the execution of a contract with the requesting local government for the costs of the analysis. The determination of the preferred alternative shall be binding on all State agencies unless the Department determines from its further evaluation during its review of any State or federal permit applications for the project that another preferred alternative should be selected in light of additional information brought forward during the permit reviews.
(c)	If the Department provides an analysis of practicable alternatives for meeting a water supply need under this section, the analysis shall be accepted by the Department and the Department of Administration for purposes of satisfying the requirements of the North Carolina Environmental Policy Act and any State permit or authorization that requires identification and assessment of alternatives, including, but not limited to, a request for an interbasin transfer pursuant to G.S. 143‑215.22L.
(d)	The Department may provide technical assistance to a unit of local government in obtaining federal permits for the preferred water supply alternative identified pursuant to subsection (a) of this section. For purposes of providing technical assistance and conducting studies in support of a proposed water supply project under this section, the Department may enter into an agreement with one or more units of local government to conduct studies or modeling. The agreement shall specify the allocation of costs for any studies or modeling prepared by the Department in support of the project.
(e)	When the Department has identified the most practicable alternative, a regional water supply system may request that the Department become a co‑applicant for all required federal approvals for the alternative identified by the Department. The Department may become a co‑applicant when all of the following conditions are met:
(1)	The regional water supply system has acquired or will acquire the property necessary for construction of the water supply reservoir or other water supply resource.
(2)	The local water supply plan shows that the regional water supply system has implemented appropriate conservation measures similar in effect to the measures in comparably sized North Carolina regional water supply systems.
(3)	The regional water supply system has developed and is implementing measures to replace existing leaking infrastructure that is similar in effect to the measures being implemented by comparably sized North Carolina regional water systems.
(4)	The regional water supply system has entered into a contractual agreement to pay the expenses incurred by the Department as a co‑applicant for the project approval.
(f)	Nothing in this section shall be construed to limit the authority of the Department to require environmental permits or to apply and enforce environmental standards pursuant to State law.  (2011‑374, s. 1.2.)