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~~ 4146.67 (iii) The pemril contains specific limitations on variations in annular prcssurc and loss of annular fluid: (iv) The design and constrnction of the well al- lows continuous monitoring of the annular pres- sure and mass balance ofannular Fluid; and (v) A secondary system is used io monvor the interface between the annulus Fluid and the injec- tion Flmd and the pennn contains rcquiremems for Testing the system evzry Ihrez months and record- ing the results. § 146.66 Logging, sampling, and testing prior to new well operation. (a) Dunng the drilling and construction of a new Class 1 hazardous waste injection well, appro- priate logs and tests shall be run to delerminz or verily [hz depth, thickness, porosity, permeability, and rock type of, and the salinity of any entrained fluids in, all relevant geologic units to assure con- formance with perfomrance vandards in § 14665. and to establish accumtz buzline data against which future measurements may be comparzd. A descnptivr report interpreting results of such toes and tests shall be prepared by a knowledgzable log analyst and submitted to the Director. At a mini- mum, such logs and tests shall includz: ll) Deviation checks during drilling on all holes constructed by drilling a pilot hole which are en- larged by reaming or another method. Such checks shall be at su(ficiemly (requem intervals to deter- mine the locmion of thz borehole and to assure that vertical avenues (or Fluid movement m the form of diverging hobs arc not created during drilling: and (2) Such other logs and tests as may be needed alter taking imo account lhz availability ofsimilar dam in thz area of the drilling site, the consuuc- lian plan, and the need (or additional information ihai may arse from time to time u the cons[mc- tion of the well pmgresszs At a imnimum, the following logs shall be required in the following situations: (i) Upon msinllation of ihr surface casing: (A) Resistivity, spontaneous potzntial, and cali- per logs before the casing a insmlled; and (B) A cement bond and variable denviy log, and a temperature log alter the casing is set and cemented. (ii) Upon installation of the long string cuing: (A) Resistivity, spontaneous potential, porosity, caliper, gamma my, and fracture finder logs before the casing is installed; and (B) A cement bond and variable denviy log, and a temperature log alter the casing is set and crmenied. (iii) Thr Director may allow the use of an alter- native io the above logs when an ahemalive will provide equivalem or benzr in(ortnauon: and (3) A mechanical inegrity rest conniving oC (i) A pressure Izsl wish ligwd or gas; (ii) A radioactive tracer survey; (iii) A temperature or noise log; (iv) A casing inspection log, if required by the Director: and (v) Any other lest required by the Director. (b) Whole coes or sidewall cores of thz conlin- mg and in)ection zones and fortnatian Fluid sam- ples from the injection zonr shall be taken. The Director may accept cores (coin nearby wells i([he owner or operaor can demonstrate that core re- trizval is not possible and That such cores are rep- resentative of conditions at [hz well Thz Director may require ihr owner or operator Io core other formations in the borehole. (c) The Buid Iempeininre, pH, conductivity, pressure and the static Fluid Izvel of the injection zone must be recorded. (d) At a minimum, the following in(ortnation concerning the injection and confining zones shall be determined or calculaed for Class I hazardous waste injection wells: (U Fracture pressure: (?) Other physical and chemical charactenvics of the injection and confining zones; and (?) Physical and chemical characteristics of ihz formation Fluids m the injection zone. (z) Upon completion, but prior to operation, the owner or operator shall conduct the following revs to ven(y hydrogeologic charaaenstics of the injee tion zone: (I) A pump mst, or (?) In)eciivny iesis. (Q The Direcmr shall have the opportunity to witness all logging and testing by this Subpar. The owner or operator shall submit a schedule of such activities to the Dvrctor 30 days prior to conducting the first test. § 146.67 Operating requirements (a) Except during vimulation, the owner err op- erator shall assure that injection pressure al [he wellhead dots not exceed a maximum which shall fir calculated so as to assure that the prcssurc m the in)ection zone dunng injection does not initiate nzw (raclures or propagate zxiving fractures in the injection zone. The owner or operator shall assure that the injection pressure does not iniimrc frac- tures or propagate existing (raclures in [he confin- ing zonz, nor cause [he movemem of injenion or formation Owds into a USDW. (b) In)eciion between the owermost caving pra- [zcting USDWS and the well bore is prohibited. (c) The owner or operator shall maintain an an- nulus prcssurc that exceeds ihr opernting injection pressure, unless the Director dazrmines ihai such a rcquircmeni might harm the integrity of the well. 19