Specifications include, but are not limited to: •The term “plumbing services”, when used in this specification shall mean the maintenance, removal, repair and/or replacement of all piping, plumbing fixtures, plumbing appliances, plumbing appurtenances, boilers, and other materials and equipment in connection with any of the following:oSupply (domestic) water systemsoSanitary sewer systemsoStorm drainage systemsoRoof drains and drainage pipingoPlumbing venting systems oHeating ventilation and air conditioning systemsoSteam boilers, hot water boilers, and other water heating systems.•Plumbing services shall include the unclogging or snaking out of sanitary sewer or other drainage lines and the removal of solid or other waste to an acceptable disposal facility. •Plumbing services shall also include all labor, material and equipment necessary for the excavation, back-filling and compaction of soil as required for the removal, repair and/or replacement of underground piping, plumbing appliances, or other items.