EHC–O™ is an integrated source of slow-release oxygen, major-, minor-, and micro-nutrients, and a pH buffering agent. This unique combination of materials facilitates the aerobic bioremediation of soils, sediment or groundwater environments impacted by various organic and inorganic compounds. For organic constituents amenable to aerobic biodegradation processes (e.g., petroleum hydrocarbons, certain pesticides/herbicides), EHC-O significantly stimulates the catabolic activity of the indigenous microflora, thereby accelerating the rate of contaminant removal.  Other oxygen-releasing products are available on the market; however significant cost savings are realized through the use of EHC-O due to its lower price, greater efficiency, and longer-lasting benefits.