12. a. A county, municipality, or authority that establishes a stormwater utility pursuant to P.L.2019, c.42 (C.40A:26B-1 et al.) may acquire by gift, grant, purchase, or condemnation, or in any other lawful manner, any privately-owned stormwater management system, or any real property necessary for the construction, improvement, operation, or maintenance of a stormwater management system.
b. If a county, municipality, or authority requires any payment as a condition of, or in connection with, assuming ownership, operation, or maintenance of any privately-owned stormwater management system, the payment shall not exceed the costs attributable to the ownership, operation, or maintenance of that stormwater management system.