(a) “Base sanitary flow” means proposed sanitary flow generated from new or redevelopment as determined using base sanitary flow factors listed in the WSSC Pipeline Design Manual (WSSC Chapter 11.130).

(b) “CIP sized sewer lines” means gravity sewers with an inside diameter 15 inches or greater.

(c) “Overflow” means wastewater exiting the top of any structure in the wastewater collection system (including manholes, vaults, wetwells and other facilities) and flowing out of the structure onto the ground surface or into a water body. This definition does not take into consideration structures with welded or sealed lids.

(d) “Projected future base sanitary flow” means flow projections based on the latest demographic projections as published by the Metropolitan Washington Council of Governments.

(e) “Projected overflow” means overflow predicted by the WSSC sewer model.

(f) “Release for service” means the date ownership of the improvement transfers from the applicant/owner/developer to WSSC. Upon issuance of the release for service, the applicant agrees that title to the water and/or sewer system and appurtenances transfers to WSSC and WSSC shall assume ownership, maintenance and operation responsibility for the water and/or sewer system and appurtenances within the bounds of the easement conveyed to WSSC and in the public right-of-way.

(g) “Safe pumping capacity” means the measured flowrate that a wastewater pumping station is capable of pumping with the largest pump out of service based on the latest published pump station capacity evaluation as required by the Consent Decree, Civil Action No. PJM 04-03679, Messite, 2005. Safe pumping capacity shall be the basis utilized when evaluating pump station capacity.

(h) “Start of construction” means the date upon which all of the following have been completed by the applicant, as determined by WSSC: design plans approved by WSSC, SEP or DRP permit obtained, performance bonds provided, all necessary easements obtained and recorded, all necessary permits for construction obtained and construction has actually started.

(i) “Surcharge” means a condition in which the hydraulic grade in a gravity sewer is greater than the interior diameter of the sewer. (REG-IFSM-EC-2016-007)