1102 SHUKSAN WAY B E AEROSPACE 2018-01-01 MF Import

� � Maintenance Guidelines Two scheduled inspectionslmaintenance � activities should take place during the year. The primary purpose of the StormFilter is to First, an inspectionlminor maintenance filter out and prevent pollutants from activity should be done. During the minor entering our walenvays. Like any effective maintenance activity (routine inspection, (iltration system, periodically these debris removal), the need for major pollutants must be removed to restore the maintenance should be determined and, if StormFilter to its fuil efficiency and disposal during major maintenance will be effectiveness. required, samples oi the sediments and Maintenance requirements and frequency media should be obtained. are dependent on the pollulant ioad Second, i( required, a major maintenance � characteristics of each sile. a�tiviry (replacement of the filter cartridges and associated sediment ;emoval) should � Mainlenance activities may be required in be performed. lhe evenl of a chemical spill or due to excessive sediment ioading irom site In addition to these two scheduled activities, erosion or extreme stonns. It is also good il is important to check the condition of the � practice to inspect the system after severe StormFilter unit after major storms for storm events. damage caused by high flows and for high sedimenl accumulation that may be caused I Types of Maintenance by localized erosion in the drainage area. It may be necessary to adjust the Presently, procedures have been develope,i maintenance activity schedule depending (or hvo levels of maintenance: on the acWal operating conditions • Inspectionlminor maintenance encountered by the system. • Major mainlenance. In general, minor maintenance activities will occur late in the rainy season, and major Inspection/minor maintenance activities are maintenance will occur in late summer to combined since minor maintenance does early fall when flows into the system are not not require special equipment and typically likely to be presenl. little or no materials are in need of disposal. Maintenance Activity Frequency Inspeclion/minor maintenance typically I involves: The primary factor controlling timing of maintenance for the StormFilter is • Inspection o( the vault itself sedimentation. I • Removal o(vegelation and trash and debris. A4ajor maintenance typically includes: • Cartridge replacement • Sediment removal Important: Applicable safery (OSHA) and disposal regulations should be followed during all maintenance activities. ? ' Maintenance Activity Timing ?`� � 7006 CONT[CH Stormwater Soluiions Toll�lree:80�.548A667 3 019 �.�rt�crsY�nnv.ater com V'avii,GF and Lim�_a$IarmPPlei Of�ra�ion an0ldaintena�e Guidellne5