On Wednesday May 20th at 0615 hours units from New Market and Mount Airy were alerted for a tractor trailer rollover with a vehicle on fire on Interstate 70 Eastbound at Exit 68. A159 (FF Rosebrock), RE153 (DFRS Capt. Cave), E152 (Sgt. Hanagan), B156(AFC Thews), U15 (FF Heller), and C15 (Chief Nalborczyk) responded with 17 personnel. Units arrived on the scene to find a milk tanker overturned in the median with an active leak. There also was a second vehicle involved with neither vehicle on fire. C15 held the I-70 Command. Crews assessed and transported two patients to the hospital. Simultaneously, crews worked to control the milk leaking from the tanker. Milk is considered a hazardous material due to its ill effects on waterways. The Frederick County Hazmat team and Maryland Department of the Environment were requested. Units worked to dam the milk as to keep it from reaching storm drains. The HIRT units also pumped off the remaining diesel fuel from the truck. The plan was then to pump the pooled milk into another milk tanker. This was accomplished by using hydraulic pumps provided by Howard County SOPS10 and a VAC truck from Frederick County Roads. The incident was mitigated by 1300 hours and all units returned to service.