(2) The district shall establish and maintain separate accounts covering the acquisition, construction, reconstruction, maintenance, operation and disposition of the domestic, industrial and municipal water system.
(3) The district board may contract with any other district or with a city to collect water charges for the district within the other district or city and the district may pay a reasonable charge for such services.
(4) Water charges may also be collected and enforced as provided by ORS 454.225. [1969 c.606 §22; 1983 c.740 §216a]