5.2. SR 09-08-1997 - Laserfiche WebLink

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Mr. Stephen Rohlf July 29, 1997 Page 2 Please note that the Minnesota Plumbing Code requires that a buried sewer or drain be located at least 10 feet from a buried water service line, or if this distance cannot be maintained, the installation and materials must comply with Minnesota Rules Chapter 4715.1710, subp. 2. Questions should be directed to the local plumbing administrative authority or the state plumbing regulation program at (612) 215-0836. We acknowledge and commend the proposer for efforts made which determined that 12 wells are known in the vicinity of this project, and that the wells will be sealed as the project proceeds. However, it is not clear how the well information was obtained. We frequently caution project proposers that written records and computer databases are not all-encompassing. Therefore, to ensure that the isolation distances will be met, we recommend a field well inventory be performed to actively determine in advance the locations of all existing water supply wells (active or unused, unsealed) along the routes of all new sewer lines and any sewer line(s) to be replaced. (Please see attached Well Inventory fact sheet, especially the "Site visitation" section.) Particular attention should be made in the areas shown on air photos, old maps, etc. where any farmsteads or homes have been located on this property, as well as along property boundaries where wells on adjacent properties may still exist. Once a well is sealed by a licensed well contractor in accordance with requirements of the Well Code, the isolation distance is no longer an issue. Thank you for the opportunity to review this EAW. If you have questions or need further information, please contact Betty Wheeler at (612) 215-0807. Sincerely, Lin M. Nelson Environmental Review Coordinator Division of Environmental Health LMN:BJW:dlm Enclosure cc: James Nye Betty Wheeler Curtis Wunderlich