Blue Virginia discusses In Another Big Blow to Mountain Valley Pipeline, Virginia DEQ Says MVP Cannot Use a Nationwide Permit to Cross Hundreds of Water Bodies in Virginia. On December 21, the Virginia Department of Environmental Quality sent a letter to the Army Corps of Engineers containing a list of certifications under the Clean Water Act. Buried at page 30 of the letter, which was just released today and published here (see below) for the first time, Virginia DEQ appears to rule that Nationwide Permit 12, a one size fits all general permit, cannot be used by pipelines greater than 36 inches (MVP is 42 inches) to cross hundreds of waterways in Virginia. Instead, MVP will now have to do what advocates have been saying for years – apply for stream by stream reviews and permits for each of the water crossings. DEQ ruled as follows: