PCC § 21290

(a) By the unanimous consent of the whole board in cases of emergency, except for compliance with subdivision (b), the board may proceed at once to replace or repair any and all structures without adopting the plans, specifications, strain sheets, or working details or giving notice for bids to let contracts. The work may be done by day labor under the direction of the board, by contract, or by a combination of the two. If the work is done wholly or in part by contract, the contractor shall be paid the actual cost of material and labor expended by him or her in doing the work, plus not more than 15 percent to cover all profits, supervisions, use of machinery and tools, and other expenses. No more than the lowest current market prices shall be paid for materials.

(b) In case of an emergency, if notice for bids to let contracts will not be given, the board shall comply with Chapter 2.5 (commencing with Section 22050).