Gravity_Line
All sewer features have been traced by the employees and interns of the Town of Chelmsford Engineering Division. The Record Drawings for each Sewer Contract was used for the basis of the AutoCAD drawing. The CAD drawing is located in O:\Engineering\SEWER\ACAD\SEWER-MAP\dwg\Sewer-MapB.dwg. This CAD drawing was then converted to GIS by an independent consultant, CGIS Mapping. This conversion took place from January, 2015 to June, 2015 funded by a Risk Management Grant from MIIA. Once sewer features are installed, rebuilt, repaired and/or inspected, this data can be edited to reflect the most current information. Elevations are based on NGVD 1929.
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