Recommended Allowable Limits for Flowback/Produced Water used in Slick-Water Fluids Fracturing

The limits below are for the treated flowback and produced water.

Note:Following treatment by the Ecologix ITS-1500 and the AGFM polishing.

ParameterMaximum Allowable Limit
pH6-8
TDS< 120,000 ppm
Conductivity, μS/cm< 130
TSS< 10
Turbidity - NTU< 5
Bacteria Count< 1/ml
Oil< 1
ORP> 200mV
Cationsppm
Sodium< 30,000
Calcium< 10,000
Magnesium< 1,500
Potassium< 1,100
Iron< 1
Barium< 10
Strontium< 10
Manganese< 10
Boron< 5
Anionsppm
Bicarbonate< 1,000
Sulfate< 500
Chloride< 70,000