A method of amending an aquifer having at least one contaminant comprising the steps of: mixing a sorbent material with a carrier to form a slurry, the sorbent material having one dimension of at least 1 micron; and introducing the slurry into the aquifer in a dispersed fashion within a pore space of the aquifer to promote permanent attenuation of the aquifer. The entrapped peptide provides antimicrobial action by early release from entrapment while the tethered peptide provides longer lasting antimicrobial protection. In comparison to granules, the addition of flanules to the dough increases sheet strength, cohesiveness, and elasticity of the dough. A stopper restricts the movement of the probe pins. In addition, the code mitigates the touch selection error based at least in part on a command history. The filter also includes an input power sampler for sampling an input power of the input signal, an output power sampler for sampling an output power of the output signal, and a tuning processor for generating the plurality of filter control signals based on at least one channel control signal associated with a current communications channel and a comparison of the input and the output powers.