Preliminary Hydrogeologic Evaluation Part #1 Cedar Ridge Estates Application for Comprehensive Permit Under MGL Ch40B Residential Development

Green View Realty, LLC 189 Hartford Avenue, Suite 2-1 Bellingham, MA Owner/Project Manager: Green View Realty, LLC Bellingham, MA Architect: Egnatz Associates, Inc. Bolton, MA Attorney: Rubin & Rudman LLP Boston, MA Engineer: Coler & Colantonio, Inc. Norwell, MA

Preliminary Hydrogeologic Study Completed Tasks: Town Records, Multiple Departments DEP File Review Historic Bird Property Reports Projected Tasks: Installation of monitoring wells in proposed treatment area, Survey of existing wells (on both the Former Bird Property and surrounding properties), Sampling of new and some of the surrounding wells, and Development of a groundwater flow & projected mound analysis models.

Page 3, Paragraph (g)

Taken from: Mass GIS Oliver Site Boundaries & WWTF Location Approximate

Well No. 4 ~1.7 miles from Site Well No. 3 ~1.9 miles from Site

Locus CEDAR RIDGE ESTATES Locus Plan Holliston, Massachusetts

B1 B10 B9 B2 B3 MW-1 B6 B B’ ` B8 5 iEP Inc Groundwater Quality Monitoring Wells of the Cedar Brook Aquifer

Well No. 4 ~1.7 miles from Site Well No. 3 ~1.9 miles from Site B1 B10 B9 B2 B3 MW-1 B6 B7 B4 iEP Inc Groundwater Quality Monitoring Wells of the Cedar Brook Aquifer A B B’ ` Bedrock Sand & Gravel Water Table Elevation B1 MW-1 Town Well 4 B8 B5 B8 B6 B7B9 B3 B10 B1 Town Well 4 Town Well 3 Bedrock Sand & Gravel Peat Water Table Elevation All 10 monitoring wells installed by iEP were sampled for VOCs in July and October 1988 No VOCs were detected in any of the wells except B2 iEP concluded that the low levels of TCE and toluene in B2 were most likely attributable to a nearby septic system Method 3 Risk Characterization prepared by Weston & Sampson Engineers, Inc. in 2001 for the Town of Holliston Marshall Street Landfill An elevation survey of 4 wells located in the vicinity of the landfill, indicated that groundwater flow is easterly toward the wetlands VOCs were not present above detection limits, except for 1,2,4-trimethylbenzene which was detected in only one of the wells

B1 B10 B9 B2 B3 MW-1 B6 B7 B4 iEP Inc Groundwater Quality Monitoring Wells of the Cedar Brook Aquifer A B B’ ` B8 B5

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