Found this at http://www.rawmilk.org/raw-milk.php:
Processed dairy is any dairy that has been altered from its raw state by heating the dairy above a cow's body temperature. Pasteurization, irradiation, boiling or homogenization are the most commonly known forms of processing. Also, the processes of chemical treatment are used to enhance flavor, fortify and preserve bad-tasting milk that has been heat-treated and putrefactive. The common store type of milk is processed to the extent it turns blue. They add large amounts of dolomite (mined calcium carbonate, that is rock) to make it white and add irradiated hydrogenated vegetable oil as Vitamin D. Hydrogenated oil has the same molecular structure as plastic unlike natural raw milk. Additionally, irradiated oil is not Vitamin D yet the FDA allows them to call it that.
Found out where you can buy raw milk here.