To allow students to run tests on five different sources of water. Students are expected to collect three samples of water: Urban and Rural (includes Aboriginal and non-Aboriginal communities) treated waters, and a Raw Source Water.
Most countries, including Canada, have set an aesthetic rather than a health guideline for manganese. The reason for this is that levels above the guideline can stain porcelain and laundry, drinks such as coffee and tea can become cloudy and taste funny. High manganese levels can also cause diarrhea.
SDS sheets for chemicals in Operation Water Drop kits. Includes SDS sheets for acetic acid, glacial; ammonia standard 1000 ppm; arsenic standard; arsenic reagents and testing pad; barium chloride dihydrate; copper standard 1000 ppm; iron ferro reagent; iron standard 1000 ppm; magnesium chloride hexahydrate; manganese 1000 ppm; methyl purple indicator; pH 7 buffer solution; potassium nitrate; sodium acetate trihydrate; sodium sulfate anhydrous; and sulfuric acid.