Water pollution has been a major challenge to environmental engineers today due to the release of toxic heavy metals from various industries. Among various heavy metals, copper(II) sulfate is considered as highly toxic due to its Finding inexpensive and effective alternative ways to remove contaminants is a major concern of many individuals and institutions nowadays. This research studies focused on Mahogany (Swietenia macrophylla) nutshell a common agricultural waste material that is used to be alternative, cheep and eco-friendly source of activated carbon, a common adsorbent to remove contaminants. The fabricated granular acid activated carbon from Mahogany various health disorders nutshells displays a physical property that is one of the common characteristics of the adsorbent materials. Based on the standard test analysis of the Department of Science and Technology, the fabricated activated carbon is less dense than water, somewhat in granular form since it passes through a specific mesh size but there are some which are in powdered form and acidic in nature because of the phosphoric acid used during activation process. Adsorptive capability of the fabricated granular acid activated carbon from Mahogany nutshell were tested on treatment 2 and treatment 3 and the result from the Atomic adsorption spectroscopy shows that there is a decreased of copper in copper(II) sulfate solution as compared to treatment 1, which is the control group. But as the amount of fabricated granular acid activated carbon increases on the different treatment, the pH value and water becomes highly acidic based from pH potentiometry test. In terms of effectiveness the findings shows that the granular acid activated carbon from Mahogany nutshell on Treatment 3 with 270 grams on 6 liters of copper (II) sulfate solution was "Highly Effective" in removal of heavy metal copper since there is a concentration difference in Treatment 1, control group and Treatment 2 and 3 which served as the experimental group. Based on the parametrict-test, there is no significant difference in the concentration of copper in copper(II) sulfate solution with and without the addition of granular acid activated carbon from Mahogany (Swietenia macrophylla) nutshell.