Laserfiche WebLink
Tablo 2. Rocommended maintenancc times for tfto Paal(lc Northwast <br />� <br />Mvnth I JAN K�g �,�� ppR MAY <br />Mnintananca <br />.IUN I JUL <br />X X x � XX <br />DRY <br />AUG <br />XX <br />WEI' <br />SEP � OCT NOV t]EC <br />X)( <br />X= Schedule mfnor mafnlenoncc insper.11on end medle sempling during one of these moral6s <br />XX = Schedule maJor malnlenance durinp e�ie of these monlhs <br />Maintenance ActiviFy Frequency <br />The prfmary faclor controlling fiminy of maintenance for the StormFflier is sedimenlatlon. A properly <br />funclioning syslom will remove solids from waler by trapping particulates in tho porous strueture of <br />(he filter media. The flow throt';h th� system will naturaily decrease as more and more solids are <br />trapped. Eventually the flow through iho systerti v.�ill 6o iow enough to requlre replacement of the <br />cartridyes. It may be possible ta exlend the usable span of the �artridges by removing sediment from <br />upstream trapping devices on an as-needed basis in order io prevent mat�rial from being re- <br />susponded and discharged to the system. <br />St,e conditions grea0y inFluence maintenanca rr:qufrernenls. SlortnFllter uNts located In areas wilh <br />erosion or a�tive constructfon sliould be fnsper,led and mainfained more ofton Ihan lhoso in fully <br />stabilized areas. The mainlenance frequency rnay be adf usted as addilionsl monitoring infomtation <br />bec�mos available during the fnspection program, Areas that develop known problems should be <br />ins��ected more frequently Ihan aroas ltiat derTionstrate no problems, particularly after larc�e storms. <br />Ultlmately, inspeclion and mainlenance activitles should be sehedulad baseci on the historic records <br />and charactertslics oF an (ndividual SlortnFiller syslem. It is recammended that lhe malnlenance <br />agency develop a database to proporly manage StnrmPllter maintenance programs, <br />Prlor to ihe developrnent of !he maintenance database, the following mai��tenance f�equencies should <br />be followad: <br />Inspoctionlminor maln4ennnce <br />(timealyear) <br />1 (�od oFler maJor storms) <br />Major maintonanco <br />(timasfyenr) <br />(except in case of a �plll) <br />Frequencies should be updated as required. llie r�commended iniiial frequency to� inspecQon/minor <br />malntenance is two times por year for the precasl unit. 5tormFilter units should be inspected atter all <br />major slorms. Sediment removal and cartridgo replacement on an annual bas!s is recomrnended <br />until further knowledge Is pained eboul a pahicular system. <br />T n00.54f3.4G67 F II00.561,1Z71 W www.stori�y,idC�!' ��' <br />rinc.cam 5 <br />