To establish the procedure for use of the WSSC sewer model during SEP Phase 1 hydraulic planning analyses (HPA), other development or redevelopment in order to reduce to the maximum extent practical the probability of sanitary sewer overflows (SSO) and excessive sewer surcharging in accordance with the purpose and intention of Section V, Article Five of the Consent Decree, Civil Action No. PJM 04-03679, Messite, 2005. This procedure applies to CIP-size sewer and all wastewater pumping stations included in the WSSC sewer system model. As described below, the WSSC sewer model may be used to assess the potential impact of proposed developments on the affected CIP size sewer system and determine any required conditions for service to be included in the letter of findings by WSSC.

The adequacy of local sewers (i.e., non-CIP-size) will continue to be evaluated by the Development Services Group. (REG-IFSM-EC-2016-007)