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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY <br />r ~ REGION VIII <br />~~~r 999 18th STREET SUITE 500 <br />qp,r•~ OENVER. COLORA00 80202-2466 <br />.~u. -s ~5 <br />Ref: 8WM-DW <br />t~iORANDIJM <br />STJHJECT <br />FROM: <br />T0: <br />ar ^L'C~ .n <br />PSaal Guidance for Conducting a Pressure Teet to <br />Determine if a [dell Iia9 Leaks is the Tubing, <br />Casing or Packer <br />Tom Pike, Chief UIC Direct ~lementati~ <br />UIC Direct T_anlementation Permit Writers <br />The Underground Inject_on Control (UIC) regulations require <br />that an injection well have :mechanical integrity a[ all times (40 <br />CI'R 144.8 (f) (2) and 40 C:R 144.51 (q) (1)) A well `ins <br />mechanical integrity (40 CFR 146.8) if: <br />(1) There is no signi`icant_eak in the tubing, casing or <br />packer; and <br />(2) There is no signif_caat _°luid movement into an <br />underground source of drinking water (IISDW) through <br />vertical channels adjacent to the injection wellbore. <br />Definition: :dec!:an,cal _ategrity Pressure "'est `or Part I. <br />A pressure test urea tc determs-ne the ~ntegr_t•; ct ail the <br />dowru:ole comoorents ct ~ ia7ecrion well, usually <br />tubing casing and pacY.er. It is also used to test tubing <br />cemented is the hole by using a tubing plug or retrievable <br />packer. Pressure tests must he run ac least once every five <br />years. I! for any reason the tztbing/packer is pulled, the <br />iIIjectioa will is required to pass another macbaaical <br />integrity teat of the tubing casing and packer prior to <br />rnc~~~ciag injection rngardleea of when the last teat was <br />conducted. Teats rue by operators in the abaeace of as EP1- <br />iaspeetor mast be conducted according to thane procedures <br />and recorded oa either the attached fozm or as equilivaat <br />form containiaq the necessary information. A pressure <br />recording chart documentating the actual anaulua teat <br />pressures mast be attached to the form. <br />This guidance addresses making a determination of Part I <br />of '?echan~cal T_atearity ,ao 'eaks in the a:biag, casing or <br />a~~ v~Mn.e en a«r.i.r era, <br />