A modified AOAC (Association of Official Agricultural Chemists) 2007.01 (acetate buffered QuEChERS) method with d-SPE clean-up was developed for the detection of 11 multiclass pesticide residues. Gas chromatographic separation along with tandem mass spectrometry (GC-MS/MS) was used to look for pesticide residues in the soil samples. By spiking all soil samples, the validation experiments were carried out with 11 readily available pesticides. Studies on linearity, recovery, precision, and accuracy were used to validate the modified AOAC 2007.01 method. Except for dicofol and penconazole, all pesticides reached the required recovery range of 65–121% with RSD values under 15% and correlation (r2) scores greater than 0.991.