Texas Class D Water License Questions and Answers

What removes tastes, odors, and certain organics and gases, and oxidizes iron and manganese? This process includes the incorporation of air into the water by means of spray nozzles , steps or cascades, or trays of diffusers? - Correct Answer Aeration TCEQ regulation states that Shore installations , marinas, boats and houses on the watershed must have sewage? - Correct Answer disposal Water aerated or chlorinated at proper pH levels oxidizes the iron and manganese, turning them into solid? - Correct Answer particles Well casing and cementing protect the well from collapse and surface ? - Correct Answer contamination Sequestering does not remove iron from the water, but prevents it from combining with oxygen and? - Correct Answer reddening The quantity of water a formation yields depends on the formations thickness and? - Correct Answer permeability Cascade aerators, packed air-stripping towers, and air diffusers are used to aerate? - Correct Answer water Aeration can be used to remove what from the water supply? - Correct Answer iron and manganese Hydrogen sulfide has a rotten egg odor and is oxidized by? - Correct Answer super-chlorination When Iron levels get this high, it can cause red stains on clothing, colored water, or turbidity? - Correct Answer 0.3 mg/L Excess Manganese can cause? - Correct Answer black stains Another method of iron control is the use of? - Correct Answer sequestering agents What is a sequestering agent? - Correct Answer polyphosphates Well water is sometimes? - Correct Answer corrosive Low ph, dissolved gases, high temperatures, and high mineral levels can cause well water to be? - Correct Answer corrosive