proposing to use the city's recycled waste water to supplement their water usage. 51,216,000 gallons of denatured ethanol annually, based on a 12-month rolling sum. This permit action incorporates a 4.9 million gallon per year increase requested by the permit application The opacity limit for the DDGS dryer is also being increased from 10% opacity to 20% opacity, except for one six-minute period per hour not to exceed 60% opacity. This change is in response to an MPCA determination that the more stringent opacity limit is not applicable to emissions from the DDGS dryer