More time is being allowed for the public to issue opinions one way or the other concerning a huge rock quarry planned for a site that hugs the northern border of the City of Shasta Lake. The public comment period has been extended a month for the proposed Moody Flats Quarry project. The 3M Corporation wants to use 1800 acres about a mile west of Interstate 5 for a major operation that would include a hard rock quarry, aggregate processing facility, ready-mix plant, asphalt concrete batch plant, and recycled construction materials plant. Two million tons of material would be produced annually, with 1.5 million tons moved by railroad and 500,000 tons moved by truck. 3M wants a permit to operate the plant for 100 years and pull out a total of 175 million tons of material. Significant issues in the environmental impact report include air quality, water quality, noise, and traffic. The report can be reviewed at the Shasta County Department of Resource Management, or at the Library in Redding, Anderson, or Shasta Lake. Written comments will now be accepted through January 20th.