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� <br /> D ° a (� � � <br /> 4.7.5 FUELING SITES <br />� 4.7.5.1 General Requiremente: <br /> A 55 qallon drum full of abeo:bent material eha11 be kept in <br /> x location eonvenient to tha fuelinq leland and tanker <br />� tranafer areae. The nbeorbent material ehall be ueed in the <br /> clean-up of any epilla of qaeoline or oil. In addition, an <br /> empty 55 gallon drum ehall aleo be kept on the eita tor <br /> diepaeal of ueed abeorbent. Inetruetione on reaponding to <br /> an aecidental epill ehall be made available to all employeea <br /> and ehall be poeted in vieible locationa. <br />, Siqne muet be poeted notinq tha loeation oE tha pump ehut- <br /> o!f ewiteh(ee� . <br /> The eite area exeluoive of the fuelinq ielande and tanker <br />� tranafar areee ahall drain throuqh a vegetated awale and/or <br /> a bnffle-type oil/water aeparatar before diecharginq to the <br /> etorm drainaqe eyetem. <br /> 4.7.5.2 High Voluma Uee Fue11:.3 Arene (commeraial gas etationa, <br />� fleat fuelinq areae, etc. ) : <br /> Fuelinq areas shall be covered to prevent tha direet entry <br /> of precipitation and ehall he qraAed or bermed to pravent <br /> tha run-on ol etormwater from adjaeent areae. <br /> Fuelinq areae ahall be paved ueing Portlend cement eoncrete. <br /> � The pavement under covered areae ahall be qraded, or <br />� "trench" or "valley" draina ahall be laeated at the covered <br /> area perimetar alonq the downhil�. eide(s), to collect runoff <br /> or waehwater from the fuelinq areae. AL1 collectdd runof! <br /> ehall bo routad through a epill eontainmant vault with a 50 <br /> gallon (minimum) live capaeity prior to diecharqa to tha <br /> eanitary eawer. <br /> An ieolation valve ehall be inetalled Ln the outlet pipinq <br /> from ihe epill containmant vault. Hhenever eite <br /> configuration allowe, the valve control ehall he an above- <br /> ground hand-aheal. If only a below-ground valve aontrol ie <br /> feeeible, the valve ehall etill be hand-oparable and the lid <br /> of the valve control box ahall be brightly colored to ellow <br /> for esey idantilication. Siqne indieatinq the loaation and <br /> purpoe• of tha vslve ehall be poetad at the fueling islande <br /> and at the ettendant'e etation. <br /> The vault lid ehall ba dQsiqned to vant vapors to the <br /> atmoephara and ehall ba conetructed of non-aparkinq <br /> material. The pavement arouad the vault lid ehall ba gradad <br /> or barmed to prevent tha run-on of stormwater fcom adiacant <br /> areae. <br />