7100 HARDESON RD SITE DEVELOPMENT 2025-07-17

16 Civil Plans CG.11-MB A Type II catch basin or a manhole shall be required when CB13 revised to a Type II. CJM the depth to the lowest pipe invert exceeds 5.5 feet, regardless of the pipe size [DCSS 4-2.3(3)7]. It appears that CB13 is exceeds 5.5 feet and should be Type II. 17 Civil Plans CG.06 Backup power must be provided with sufficient capacity to The pump is connected to the building power KJH run the pumps at max flow [DCSS 4-2.3(10)4]. which is covered by a whole building backup generator. 18 Civil Plans, CG.07A Provide a detail for the Filterra bioretention system with Filterra detail now included in the plan set. KJH Stormwater site-specific information. The email confirmation from Contech has Technical been added to the storm report. Because Memorandum Send the stormwater plans to the Filterra manufacturer to the unit is downstream of detention, Contech make sure there is no issue with the pump upstream, and has required the facility to be online 24- provide verification. hours followed by 24-hours offline. There are two facilities with separate pumps that are programed to cycle every 24-hours. 19 Civil Plans CG.07 BMP D.3— Provide ventilation pipes (minimum 12-inch The plans show an access manhole lid at all KJH diameter or equivalent) in all four corners of vaults to allow four corners of the vault which exceeds the for artificial ventilation prior to entry of maintenance 12-inch requirement. personnel into the vault. 20 Civil Plans CG.07 The minimum width of a notch allowed for use in the Model has been modified to match design KJH City of Everett is one quarter inch. [DCSS 4-2.3(6)2] drawings. Standard plans 415 and 416 Make sure to update the model for the notch. Also, reference added to detail sheet CG.07. change the orifice to 0.85" in the model as shown in the plans. • Show all dimensions as specified in Standard Drawings 415 and 416 for the flow control structure or call-out these drawings by reference. [DCSS 4- 2.3(6)3] Page 7 of 12