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Maintcnance Methods <br />InspectionlMinor Maintanance (once a yoar) <br />The primery goal oF a maintenencE Inspection is to assess the condition of lhe prtrldges relative to <br />the level of sediment loaciing. It may. be d�slrable to co�duct thls inspeclion dudng a stonn to <br />observe the relative tlow tlirough the filter cartridges. If the submerged cartridges are severely <br />pluyged, large amoUnis of sediments wiil be present and very Uttle ilow wlll be discharged front th� <br />drainage pipes. I( tltis is lhe cas�, It (s likely thal the cartridges need to be replaced. <br />Warning: In the pso of a saG!, lhe worker shouid ahort mainfenance ectivities vntil the pI-oper <br />guldance fs obtalned. �d�;iify tho Iocal hazard controi agency and Slormwaler Managemenf 1nc. <br />irnmedialely. <br />To condu�t an inspeclion and/or minor maintenence: <br />Irr�portant: tvlaintenanco must 6e perforrned I�y a utility wnrker familiar with StormFllter unils. <br />1. ff applicable, set up safety equlpment to prolect pedestrians from fali hazards due to open vault <br />doors or when worlc is being dono i�ear roadway3. <br />2. Visually inspect the oxtE�rnal condilion uf the unit and take notes conceming defects/problems. <br />3. Opon lhe doors to the vault and allow the system to eir out for 5-10 mfnutes. <br />4. Without entering Ihe vault, Inspect lho insicle of ihe unii, includ(ng component,. <br />6. 7ake notes about lhe e�ernal and intaina� condilion of lhe vault. <br />E�� sure to record lhe level of sedlment bulld-up otl lho floor of ihe vaWt, in tho foreb8y, and on <br />top of the cartridges. If flow is occurrfng, note Ihe level of water end estim�te the flow rate per <br />drainage plpe. Recorcl all obseNaqolls. <br />Fi. Remove large loose debris and trash using a pole wilh a c�rapple or net on the �nd. <br />7. Close and fasten Il�e door. <br />8. Remove safeiy oq,�ipment. <br />9. Make noles about the Iocal drainage area rolalive to ongoing construclion, erosion problems, or <br />high loadiny of olher muterials to lhe syslem. <br />10. Finally, revlew the condilion reporis fmm �he previous minor and major mafntenance visits, and <br />schedule carlridge replacement if needed. <br />T 400.54II.4f�7 F ff00.561.1771 W www.srormwaterinc.com ?�'' 1 <br />7 ' <br />