One of Kingwood’s top providers of water treatment services is Qemi International Inc in Kingwood Texas. For the potable water treatment process, Qemi provides a huge selection of NSF® certified to NSF/ ANSI/ CAN 60 coagulant grade and flocculant grade polymer materials.It offers a full spectrum of chemicals for treating industrial wastewater, most of which are used for dewatering and thickening purposes.