Laserfiche WebLink
N. <br /> 1 . <br /> 41e11 heads shall be enclosed in a surface security structure <br /> that protects the well from the entry of surface water, <br /> accidental damage, unauthorized access, and vandalism. This <br /> may be accomplished by providing a locked well cap or by <br /> securing the facility within which a well Is located. <br /> -� (k) Pertinent well information including well identification, <br /> well type , well depth, well casing diameters if more than <br /> one size is used, and perforated intervals shall be <br /> permanently efixed to the interior of the surface security <br /> structure and the well identification number and well type <br /> shall be affixed on the exterior of the surface security <br /> structure. <br /> (1} X5et <br /> s for vapor wells that are completed no more <br /> below the bottom ofthe underground storage tank <br /> e above ■ny free water zones shall be required <br /> -fir? etion of the local agency on ■ site-speciflc <br /> (m) If 3 rfr seals for vapor wells that are completed in or <br /> belo free water zone are required, the seal shall not <br /> ext.4nd 'below the top of the underground storage tank. <br /> (n) Vapgkn <br /> t constructed wholly within backfill that <br /> Burr the underground storage tank and which extends to <br /> thend surface need not be sealed against inflltratlon <br /> of� ce water. <br /> (o) The n for surface seals for other types of vadose zone <br /> in3t.flilatlon3 shall be determined on a case-by-case bests. <br /> (p) In o denwr to implement monitoring Alternatives 2, hest t an <br /> the g ound water monitoring portion of 6, the high <br /> antiei"til <br /> ground water level and existing ground water <br /> level all be deteroined. Highest anticipated ground water <br /> irvels hall be de ierm£ned by a review of all available <br /> water lc el recor a for wells within 1 mile of the site. <br /> t �.'wdfi ?;,� . ..:,`:, ;;it ,'� �• = Existing it <br /> B ound water levels shall be established by <br /> either wa r 1. vel measurements taken within the last 2 <br /> years in a �x£sting wells, for which records are <br /> available, riat are within 500 feet of the facility and <br /> which are p/e forated in the zone of interest, or by drilling <br /> at least ilex loratory boring constructed as follows: <br /> ( 1) Th explo atory boring shall be drilled downgradient if <br /> p sable and as near as possible to the underground <br /> orage tank within the boundaries of the property <br /> ncompass£ng the facility, but no further than 500 feet <br /> from the underground storage tank. <br /> u-26 <br />