Any district having outstanding special assessment warrants, payable in whole or in part out of collections from special assessments, which are past due or which are redeemable, either at the option of the district or with the consent of the warrant holders, may issue refunding special assessment warrants or bonds if there is not sufficient money in the project fund against which such warrants are drawn to pay the same. The issuance of refunding warrants or bonds shall be authorized by resolution of the water resource board. The resolution shall describe the warrants to be refunded and the amount and maturity thereof. Refunding warrants may be issued for any of the following purposes:
Refunding warrants or bonds shall bear such date, be in such date, be in such denominations, and shall mature serially within such time, not exceeding thirty years from the date of issuance, as the water resource board shall determine. The average rate of interest on such warrants shall not exceed the average rate of interest on refunded warrants.
The treasurer of the district shall pay special assessment warrants, and the interest coupons attached thereto, as they mature and are presented for payment out of the fund against which they are drawn and shall cancel the warrants when paid.
Any deficiency in any fund created for the payment of district warrants payable in whole or in part out of collections of special assessment taxes shall be the general obligation of the water resource district.
N.D.C.C. § 61-16.1-36