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;Aa�nten�nee <br /> Vortechs System Inspection 8 Maintenance Log <br /> Model: Location: <br /> Water FloateMe Malntenana Msintenanai , <br /> Date Depth to Layer ��� , �� . C�MrN�b,. ' <br /> SedimeM� Thfckness� <br /> , ` <br /> ,,,;,. , .. <br /> t a,'�. ��r, <br /> � <br /> �.+�,' �r . �� W �rt'��*, � <br /> , �;, � �p <br /> ; � � �:��. ��. ,���. ��,� � � � � <br /> ��� v = , � ��:_ <br /> �.i 7�. ..ir q <br /> . , ..�• .��{ �P:. <br /> . _ . . .' h �'��. .. ✓��. <br /> � <br /> 1. The water c�pth to sedimem is delermined by taking two measurements with a stadia rod:one <br /> measuremer,I Irom tha manhcle opening!o the top ot the sediment pile and the other from lhe <br /> manhole opening to the water surlace.When lhe difterence between lhe lwo measurements is <br /> six inches or less, �he system should bo cleaned out. <br /> 2. For optimum peAortnance,the system should be cleaned out when the Iloating hydrocarbon <br /> laver accumulates to an appreciable lhickness. In Ihe evenl of a spill,lhe system should be <br /> cleaned immedialely. <br /> C?200fi CONTECH Stormwater Solutions 119 <br />