Bachelor's degree in one of the chemical, biological, microbiological, environmental or natural resource sciences including related chemistry laboratory coursework from an appropriately accredited institution; or Associate's degree in one of the chemical, biological, microbiological, environmental or natural resource sciences or a closely related curriculum including related chemistry laboratory coursework from an appropriately accredited institution and two years of directly related chemistry laboratory experience; or an equivalent combination of education and experience. drinking water, surface water, groundwater, rainwater, animal waste lagoons, waste water, soil, sediment, sludge, tissue) for metals parameters including aluminum, antimony, barium, beryllium, boron, calcium, cadmium, chromium, cobalt, copper, iron, lead, lithium, magnesium, manganese, mercury, nickel, potassium, selenium, silver, strontium, thallium, tin, titanium, vanadium, and zinc.