Unless otherwise determined by the city council for any individual contract to be awarded, the award of a public works contract by informal bidding process may be approved by the city manager, upon the recommendation of the director of public works, and subject to approval as to the form of the contract by the city attorney. The determination of the city manager to award a contract by informal bidding procedure shall be final. In awarding the contracts, the city manager shall exercise prudent judgment in determining the lowest responsible bidder, taking into account the public’s interest in efficiency and economy in the award of the contracts and giving due consideration to fairness and equity to competing bidders. (Ord. 595 § 1 (Exh. A (part)), 2012)