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' - • " ■....................................................V ^ ,,.J1 ■•# -m->>-•-• H'l 1 <br />jhi*- <br />:.i .,■■ <br />h&k <br />SV: <br />■5''■" :& <br />UW''- <br />if& <br />'I - v>, JS'//./. r' :. ‘Z ' <br />;4V,.'';,.lr'"*4 i <br />I"'#*; <br />m <br />'#'■ <br />W¥I <br />J ■! <br />Itf-*; <br />ttB- ■I'*/'-l-iU-- •?. <br />mf <br />•<; .'. <br />W->r i’; <br />1 <br />2 <br />i <br />4 <br />5 <br />S <br />7 <br />t <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />10 <br />17 <br />^8 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br />20 <br />29 <br />30 <br />31 <br />37 <br />33 <br />34 <br />39 <br />36 <br />M <br />OS/13/91 (;ir/:scit I cmp/bo Aaii34 <br />p«crolcun undcroround storaoc tank systcas in pact 71S0.0310 by <br />tha d«t«s »«t forth In part 71S0.0300. ly Oaetaber 22. 199S. <br />•11 axisting hazardous aatarial undarground stociga tank systcas <br />must acat tha ralaasa datectlon caguiramants for naw systcas In <br />itas 0. ■ <br />• * 0 <br />B. Ralaasa dataetion at naw hazardous SMtarial <br />undarground storaga tank systaas must meat tha raquiraaants in <br />•v <br />■uhitaaa (1) to (S): <br />(1) Sacondary containment aystams must ba,. .. <br />dasignad#-eonstruetad* and installad to: <br />(a) contain ragulatad substancas ralaased <br />from tha tank systaa until thay are datactad and ramovad; <br />(b) pravant tha rclaasa f regulated <br />substancas to tha anvlconmant at any tlaa during the operational <br />lita of tha undarground storaga tank system; and <br />(c) be checked for evidence of a release at <br />least every 30 days. <br />Tha provisions of part 7045.0528 may be used to comply with <br />this subitem. <br />(2) Ooubla^walled tanks must be designed. - <br />constructed, and installad to: <br />(a) contain a release from any part of the <br />inner tank within tha outer wall; and <br />(b) detect tha failure of tha inner wall. <br />C3) external liners. Including vaults, must be <br />dasignad. constructed, and Installed to; <br />(a) contain 100 percent of tha capacity of <br />the largest tank within its boun^ry; <br />|b) pravant tha intarferanea of <br />precipitation or groundwater intrusion with tha ability to <br />contain or detect a rale aa of ragulatad substances; and <br />(e) surround tha tank completely, for <br />asanpla. it is capable of preventing lateral as wall as vertical <br />migration of ragulatad substancas. <br />(4) Underground piping mst bo equipped with <br />secondary containment that satisfies tha ra^qulramants of subitem <br />1 <br />1 <br />'3