1) Abbreviations: Acceptable abbreviations for showing types of new and existing pipe materials on the plans are as follows:

2) Building Drain: The building drain is that part of the lowest piping of the drainage system which receives the discharge from waste and other drainage pipes inside the walls of the building and conveys it to the building sewer, which begins two feet outside the building wall (building foundation).

3) Building Sewer: That part of the horizontal piping of the sewer system which extends from the end of the building drain and which receives the discharge of the building drain and conveys it to a public sanitary sewer system at the property line, individual sewage disposal system, or other approved point of disposal.

4) Collection Sewer: Lateral and mainline sanitary sewers.

5) Collection System: Facilities maintained by the City for the collecting, conveying, pumping and controlling of wastewater.

6) Contact Cooling Water: Water which is used as a medium for carrying away excess heat from apparatus, appliance, mechanism or device in which, in the course of cooling process, comes in direct contact with the product, is mixed or co-mingled with any other substance or used as a means of carrying off any other substance, in suspension or in solution. Contact cooling water is considered to be a process wastewater and may require pretreatment prior to discharge into the City's sewer system.

7) Domestic Sewage: The liquid and water borne waste derived from the ordinary living processes, free from industrial wastes, and of such character to permit satisfactory disposal, without special treatment into the public sanitary sewer or by means of private sanitary sewage disposal system.

8) Drainage Waste: Stormwater, groundwater, surface drainage, subsurface drainage, spring water, well overflow, roof drainage, or other like drainage other than sewage or industrial waste.

9) Fixture Unit Equivalents: The unit equivalent of plumbing fixtures as tabulated in Chapter 4 of the Oregon Plumbing Specialty Code.

10) Flow: The wastewater flow from an industry, institution or house connection (daily average).

11) Industrial Waste: A water borne waste and wastewater from an industrial user.

12) Mainline Sewer: Any public sanitary sewer which receives flow from one or more service laterals.

13) Noncontact Cooling Water: Water other than sewage or industrial waste which is used as a medium for carrying away excess heat from apparatus, appliance, mechanism or devise in which, in the course of cooling process, is not mixed or co-mingled with any other substance or used as a means of carrying off any other substance, in suspension or in solution, thereby exiting such cooling process in substantially the same condition, save for temperature, as when it entered.

14) Plumbing System: All plumbing fixtures and traps, or soil, waste, special waste and vent pipes within a building and to a point two feet outside the building foundation thereof.

15) Private Collection System/Private Sewer: A privately owned and maintained sanitary sewer system installed to serve multi-unit structures on single ownership properties, which cannot legally be further divided, such as apartments, mobile home parks and schools or installed in commercial or industrial developments.

16) Property Line Cleanout: A cleanout (to City standards) is installed on a sanitary sewer service lateral and which is located at or near the point where the sewer service lateral leaves the public right-of-way (or at or near the point where it leaves the public sewer easement for sewer mainlines not constructed in public right-of-ways). This general term applies even if said cleanouts are not installed directly on the property line or easement boundary. Other clean outs between the Property Line Cleanout and the building (whether or not installed on property other property lines crossed) are private cleanouts which must conform with the Oregon Plumbing Specialty Code standards.

17) Public Sewer: Any sanitary sewer in the public right-of-way or easement operated and maintained by the City.

Sewer Service Lateral: That portion of the building sewer from the right-of­ way line (or easement boundary) to a public sanitary sewer, private sanitary sewer, individual sanitary sewage disposal system, or other point of disposal. For laterals connected to a public mainline, the portion of the sewer service lateral between the mainline and the property line cleanout (if one exists) is public where a property line cleanout exists. Lateral responsibility:

18) Sewage: The wastewater derived from human habitation and use of buildings for residential, institutional or commercial purposes, excluding storm waters and industrial waste.

19) Structures: Those structures designated on the plans as manholes, siphons, junctions or diversion facilities, etc. Detailed drawings of structures or devices commonly used in City work and mentioned in these Standards are included in the standard construction specifications.