Specifications include, but are not limited to: The Contractor shall provide scheduled and on-call septic tank pumping services as specified for the quantity of tanks and sizes at the locations indicated on the price proposal pages in accordance with these specifications. The locations specified are Calvert County Governments primary facilities – Calvert County Government reserves the right to add or delete location as needed. A. Scheduled pumping shall occur once per year in either late spring or early summer. B. On-call pumping shall occur at the request of the Calvert County Government within the time specified by the Contractor with their submittal. C. If solids are present, the Contractor shall agitate or backwash to break up the solids and proceed to pump the tank(s) clean.