SU0004714 - Laserfiche WebLink

Home Browse Search

3 . Injection Pressure Limitation [§146 . 13 (a) ) Injection pressure at the wellhead shall not exceed a maximum which shall be measured so as to assure that the pressure in the injection zone during injection does not initiate new fractures or propagate existing fractures in the injection zone. In no case shall injection pressure initiate fractures in the confining zone or cause the movement of injection or formation fluids into an underground source of drinking water. The maximum injection pressure, measured at the wellhead, shall not exceed the results of the Hydrofracture Pressure Test performed after the well is drilled and completed and prior to any Injectivity Testing. 4 . Additional Injection Limitation Injection between the outermost casing protecting underground sources of drinking water and the well bore is prohibited. 5. Injection Rate The injection rate shall not exceed 150 gpm at any time. 6. Annulus Measurements The annulus between the tubing and the long string casing shall be filled with treated 3 per cent KC1 water to prevent corrosion and bacterial growth. A minimum surface annular pressure of 100 psig shall be maintained at all times. The permittee shall notify the Director in accordance with Part I , Section E, Item 12 (d) of this permit when a change in the an- nular pressure occurs. C. MONITORING REQUIREMENTS 1 . Sampling and Analytical Methods [§144 . 51 (j ) (1) and §144 . 52 (a) (5) ] Samples and measurements taken for the purpose of monitoring shall be representative of the monitored activity. The method used to obtain a representative sample of the fluid to be analyzed and the procedure for analysis of the sample are as fol- lows: a. Incoming Water from Sharpe Army Depot (a) A grab sample of the incoming water at the San Joaquin Cogen Limited plant shall be obtained monthly at random. 16