6611 ASSOCIATED BLVD BASE FILE 2016-01-01 MF Import

i i � A properly functioning system will remove The recommend�d initial frequency for , solids from water by trapping particulates in inspection/minor m !enance is Nvo times the porcus structure of the filter media. The per year for preca�t ..nits. StormF'ilter ur�its flow through the system will naturally should be inspected after all major storms. I decrease as more and more solids are Sedimer�t removal and cartridge trapped. Eventually the Row through the replacement on an annual basis is syster-i wili be low enough to require recommended until further knowiedge is � replacement of the cartridges. It m2y be gained about a particular system. possible to extend the usable span of the caAridges by removing sediment from Once an understanding of site ' upstream trapping devices on an as-needed characteristics has been Established, basis in order to prevent material from being maintenance may not be needed for one to re-suspended and discharged to the two years, but inspection is warranted. system. f Maintenance Methods Sile conditions greatly influence maintenance requirements. StormFilter InspectionlMinor Maintenance I units located in areas with erosion or active construction should be inspected and The primary goal of a maintenance maintained more often than those in fully inspection is to assess the condition of the Istabilized areas. cartridges relative to the Ievei of sediment � loadiny. It may be desir�ble to r,onduct this The maintenance frequency may be inspection during a storm to observe the adjust�3d as additional monitoring relative (low through thQ filter cartridges. If Iinformation becomes available during the the submerged cartridges are severely � inspection program. Areas that develop plugged, large amounts of sediments will be known problems should be inspected more present and very little flow will be I frequently than areas that demonstrate no discharged from the drainage pipes. If this problems, particularly after iarge storms. is the case, it is likely that the cartridges need lo be replaced. � Ultimately, inspec6on and maintenance �i activities should be scheduled based on the Waming: In the case of a spill, the worker historic records and characteristics of an �hould abort maintenance aclivities until the individucl StormFilter system. It is proper guidance is obtained. Notify the � recommended that the maintenance agency Iocal hazard control age;icy and CONTECH develop a database to properly manage Stormwater Solutions imrtiediately. StormFilter maintenance programs. IPrior to the developrr�ent of the To conduct an inspection andlor minor maintenance database, the (ollowing maintenance: � maintenance irequencies should be Important: Mainterance must be performed � followed: by a utility worker familiar with StormFilter Inspection/minor maintenance units. � • One time per year • After Major Storms 1. If applicable, set up safety equipment t� Frotect pedestri2ns from fall hazards � Major maintenar,ce due to open vault doors or when work is � • One time per year being done near walkways or roadways. • In the event of a chemical spill 2. Visually inspect the external condition of ( the un�t and take notes conceming Frequencies should be updated as required. defects/problems. I �;'�2rC6 COHTECH Slormwater Solulions Toll-Iree 800 5494667 4 a�9 .;,rn,r.r,>r,:nrn�atcr com Va�..!L CIP anc L ncar Sm�nFlRer Gperauo�ana Alaintenance G�'aennes