31. Process of mixing water with hydraulic fracturing fluids to be injected into the ground 32. Hydraulic fracturing is the propagation of fractures in a rock layer by pressurized fluid.33. Horn River formations in British Columbia would not be possible without hydraulic fracturing technology. 34. Some producers have developed hydraulic fracturing techniques that could reduce the need for water. 35. Hydraulic fracturing has changed the energy scene as a result of many technological advances.36. Hydraulic fracturing in Ukraine has been used since the 1950s.37. :: : : What about the practice of Hydraulic fracturing ? 38. Reservoirs are often treated by hydraulic fracturing or other activities to stimulate greater conductivity. 39. The DEP had previously failed to notify residents about hydraulic fracturing related contamination events. 40. There have been many protests directed at hydraulic fracturing .