Article 4. Contracts of California Public Utilities Code >> Division 10. >> Part 17. >> Chapter 4. >> Article 4.

The district may make contracts and enter into stipulations of any nature whatsoever, either in connection with eminent domain proceedings or otherwise, including, but not limited to, contracts and stipulations to indemnify and hold harmless, to employ labor, and to perform all acts necessary and convenient for the full exercise of the powers granted in this part.
The district may contract with any department or agency of the United States, with any public agency, including, but not limited to, the Department of Transportation, any county, city, or district, or with any person or a private entity upon the terms and conditions that the district finds in its best interest for the procurement of engineering, project management, and contract management services.
(a) The purchase of all supplies, equipment, and materials, when the expenditure required exceeds one hundred thousand dollars ($100,000), shall, by contract, be let to the lowest responsible bidder, or, in the district's discretion, to the responsible bidder who submitted a proposal that provides the best value to the district on the basis of the factors identified in the solicitation. "Best value" means the overall combination of quality, price, and other elements of a proposal that, when considered together, provide the greatest overall benefit in response to the requirements described in the solicitation documents.
  (b) To the extent practicable, the district shall obtain a minimum of three quotations, either written or oral, that permit prices and terms to be compared whenever the expected expenditure required for the purchase of supplies, equipment, or materials exceeds two thousand five hundred dollars ($2,500), but does not exceed one hundred thousand dollars ($100,000).