COMPLIANCE INFO_1985-2006 - Laserfiche WebLink

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n 1983. the State of California en- acted new statute: regulating theNo IS am a storage of hazardous substances in tj :ws& Etm "Nolk Own waft m mr underground tanks to prevent these N =AA materials from leaking into the soil and Storage 'lankS Vapor Detection Monitoring groundwater. Of these statutes. the most significant of those enacted was referred to as the Sher Bill (AB 1362) which requires owners/operators of BY LLOYD NELSON & JAY DABLO underground storage tanks containing :•�-�- ,.,�.. - ,..,TM.. -•--r hazardous substances to obtain a r- ��- {{ � 'L' '''• ' mit for each tank. However,° ' -r® .»'s.Jl. '} -t e. • 'a� a permit a'.:. _ •:' ;` .,. ... • . .;.,-•^,'; ;� '. COUId not be issued UnIGSS It was shown` '7® �s<pA's -+" ~sy t�'•✓ •^•»1 �►*e°; Figure 1' " that the tank had not o been leaking and a leak detection system Was Installed ' .•, f 't .• •. s•-.'. . -'• ::a r• • , ... 1• • •P to monitor the tank. In addition, all ELL .LOCATION ' PLAN new tanks installed after January 1, - 1984 must have secondary containment • ;5;. ,' •- - , ; ,. i a teak detection system. p0 this legislation. a `_ v �I .y"'-jV'..i In response t® .- j ' r . %a • t. •q- ` '�{', •m ;h �^`. y T': number of cities ado pled underground tank ordinances requiring an applica- tion and permit as aw "Underground Hazardous Substance Storage Facil- ity," a tank assessment program in- cluding a determination of the soil and N `t "^ •• water conditions at the site, design and ::� •J �' Ln;, °.'yv• vtgcc}� 1; s: ': y,� em•.; s; �iw•e.>....':• t'y •e. installation of an appropriate monitor- ing system which at a minimum. must •a ;•;�' ' , tan t" ^,.�;•;._ . •• `. _ be capable of detecting leakage on a continuous electronic bast:. ♦ 4A': k• I e�A �e .•'. 1. `. �•.J 1 t °Cl t#Ied 6m10 !.!�a` , e•. .. .. .� .� • ` •-tar_.�� _;,,re' ` ... Case Study Facility Description / ►' The facility used in this case study "`'_ _ is a manufacturing plant which pro- t ' , , `� ; -': e duces a variety of control devices and '��°' ' w'�1o~ ' w°vti.:rot. t:e®/' .r • " t.• ••° ' " `'AL '' r ttatga , is located in the City of Vernon, ap- BaM ` ®e proximately 10 miles southeast of downtown Los Angeles. In order to e®. eo.wtet swo facilitate fueling of the company's au- _ _ '—--' --- -----•-- tomobiles and the delivery vehicle, two 7 Aos„sa,n4te eertei!t ar underground storage tanks were in- • p 4puke atm. faits stalled in 1979 and 1981. The tanks each have a capacity'of 8000 gallons ' ' :----------------------------..__-•• arc 8 feet in diameter by 24 feet in length. (See Figures t and 2 respectively.) -• V 3a1 v.Wt ewtt Alluvial deposits of recent origin t_J Post section underlie the site. The deposits consist = _ of mixtures of sand, silt and clay de- posited by the Los Angeles River, lo- cated less than one mile to the north `' • "N of the site. The alluvial deposits are predominately sandy and have mod- trate to high permeability and trans- located at depths of 230 to 250 feet groundwater surface and the ori; missivity. A thick clay aquiclude is below the surface, although isolated high permeability of the soils. a r present at depths of approximately 73 areas of perched groundwater are itoring system which relied on rr to 90 feet below the ground surface. present along the river. toring groundwater was dcterminr The permanent groundwater surface is Due to the great depth of the be unacceptable because of the "Waninsis.Materiak & Wsue Menspemem Mapasinc//uly-Autuo 19PA