bentonite chips / neat cement / cement pits / buried steel well casings / cement crock / neat cement slurry* / well site / cement / chemical contaminants / dry bentonite chips / cement slurry / metal detector moving / /
Organization
Environmental Quality office of Drinking Water / World Health Organization / Michigan Department of Environmental Quality office of Drinking Water / Michigan Department of Environmental Quality / Water Bureau / / /
Position
registered well drilling contractor / contractor / farmer / well drilling contractor / /