All surfaces that come into contact with water during storage prior to transport,

All surfaces that come into contact with water during storage prior to transport, during transport or during storage after transport, shall be made of smooth impervious, non-absorbent, corrosion resistant and non-toxic material such as stainless steel of the American Iron and Steel Institute 300 Series, or equally corrosion-resistant non-toxic material. All water contact surfaces shall be free of substances that may render the water injurious to health or which may adversely affect the flavor, color, turbidity, odor, radiological, microbiological or chemical quality of the water.