9920 EVERGREEN WAY EVERETT AUTO PARTS 2016-01-01 MF Import

l ,n' " , TO: FROM: DATE: � SUBJECT: � 1 � 1 MEMORI�NDUM I Paul McKee Jane Zimmerman Septembe: 6, 1991 Evergreen Way Auto Shop Plan Revi.ew I.have the following comments on the submitted p.lans; ��' � 1) �the existing drainage plan referenced on the sheet "' ' submitted must be provided for review. The existing plan ,� must show the ponding elevations for the 2� year storm. The new buildings finished floor elevation must be 12 inches above the maximum ponding elevation. ' �I , �Y.• , �- 2) the submitted plans must show both existing and � proposed contours of the site. � 3) a baffle-type oil/water separator must be provided if a � vegetated'swale.is nut feasible on the site. ��'/4) the oil/water separator should be sized an•i located to "�'� serve the entire site (redevelopment standards). '`' , 5) oalcu�ations must be submitted for the oil/water ti;,�,I, I separator. The size of the structur.e must be determined I using. the design criteria found in s=_ction 4.11 of the ` ' standard. , �,,. 6), design details for the separator vault, in terms or its i� '� dimensions, invert elevatio»s, type, and manufacturer must �,:, ,, � be provided on the plans . �,..r , ��.'' "�� 7 overflow i in must be �:,.`,:-�-- ') P P 4 provided for the vault per ,. �. 1� ,�{�'•, section 4.11 of the City�s standards and specifications. Fa �� r"��, � 'j ��.�,i`i»y��"'�",.8) the oil/water separator maintenance notes from section :il ,�-.� 4.11.1 of the standards must be included on the plans. "��,,' "� 9) invert elevations of new structures and any structures • directly downstream'of new structures r..ust be provided. � � ; 10) catch basin type and size must be given for all new catch basins. � 11) pipe type and size must be given for all new storm draiii. �- 12) the reauired notes from section 4.4.2.1 of the standards and specifications must be .incl�ided on the plans.