1. Items of Special Design. When an item required is of special design, shape or manufacture to match or fit in with an existing installation and competitive bidding is impracticable;

2. Surplus or Distress Sales. When it is possible to procure obvious bargains in surplus or distress material, supplies or equipment;

3. Items for Quick Delivery. When the obtaining of competitive bids or quotations will cause delay resulting in an appreciable loss to the city;

4. Purchase of Insurance or Bonds. When purchasing insurance or bonds;

5. Single or Sole Source. When the director of finance and asset management or his/her designee determines in writing that the purchase or service is clearly and legitimately limited to a single or sole source of supply. The director of finance and asset management or his/her designee shall conduct negotiations, as appropriate, as to price, terms, and delivery time;

6. Special Market Conditions. When, in the director of finance and asset management’s reasonable discretion, special facilities or market conditions exist;

7. Emergency or Threatened Emergency. When the city manager or his/her designee authorizes emergency procurement of materials, supplies, or equipment, or procurement of services without complying with the requirements of this chapter because there exists a threat to public health, welfare, or safety or where the city may suffer an appreciable loss because of the time required to follow regular purchasing procedures; provided, that such emergency procurements shall be made with such competition as is practicable under the circumstances. A written determination of the basis for the emergency and for the selection of the particular contractor shall be included in the contract file. As soon as practicable, a record of each emergency procurement shall be made and shall set forth the contractor’s name, the amount and type of the contract, and a listing of the item(s) procured under the contract, which shall be reported to the city council at its next meeting or within two weeks, whichever is sooner.