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Environmental Health & Safety

37 Dewey Field Road
Suite 6216
Hanover, NH 03755-3529
Phone: (603) 646-1762
Fax: (603) 646-2622

Dartmouth Compliance Matrix

Complex organizations such as Dartmouth comply with a multitude of policies, laws, and regulations.  Risk and Internal Controls has developed a compliance matrix to guide the Dartmouth community in identifying key compliance areas, the Dartmouth staff responsible for various aspects of compliance oversight, and where to go to learn more about each compliance area.
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Rennie Farm

Rennie Farm Update:


Current Status
  • Hydrogeologic conditions on the Rennie Farm property and migration of 1,4-dioxane contamination have been extensively investigated, mapped, and accepted by the New Hampshire Department of Environmental Services (DES).
  • A groundwater pump and treat system was approved by DES, began operation in January, 2017, and is operating effectively. The system removes 1,4-dioxane from groundwater within the source area and portions of the plume located on the Rennie Farm property, preventing its movement off the property.
  • In April, 2017, the United States Environmental Protection Agency authorized a permit to increase the rate of groundwater treatment and established water quality standards for the discharge of treated water.
  • A Groundwater Management Permit (Permit) was issued by DES in August, 2017, establishing a long term water quality monitoring program for the site, including a total of 96 water quality monitoring locations (groundwater, surface water, and water supply wells). The Permit also establishes a groundwater management zone that includes the area of known contamination and a buffer area established to protect public health and to monitor groundwater quality.
  • Water quality monitoring shows no expansion of the 1,4-dioxane plume. There have been no impacts to the more than 140 water supply wells tested to ensure the safety and address the concerns of our neighbors. Only one water supply well, 9 Rennie Road, has been impacted.
  • Current sampling results indicate that there have been significant reductions in the concentration of 1,4-dioxane: a 46% reduction in concentration on-site and a 64% reduction of concentration downgradient of the source area on the Rennie property, based on March 2018 data.

Value Assurance Program (VAP)

  • In February, 2017 Dartmouth announced its Value Assurance Program (VAP), which assures property owners in the defined Program Area (48 properties) that they will receive fair market value the for their property if sold within the 5 year program. Dartmouth will either buy the property at fair market value or pay the difference between an offer to purchase and the fair market value, as determined through an established listing and appraisal process.
  • To date, Dartmouth has purchased 6 properties as part of the VAP. Four have houses on them; two are large vacant parcels.
  • Dartmouth expects to sell properties purchased as part of the VAP at a later date.


  • From the mid-1960s until 1978, a less than ½-acre area of the ~230 acre property, was used as a State licensed burial site for animal carcasses used in medical and other research, including testing using radionuclides.
  • Dartmouth voluntarily decided to remove the animal carcasses, and the removal was completed during late 2011 under the approval of the New Hampshire Department of Health and Human Services, Radiological Health Section (RHS). During the removal unexpected chemical waste was encountered. DES was notified and the contaminated materials encountered were removed.
  • During April 2012, analysis of groundwater samples detected 1,4-dioxane (a volatile organic compound [VOC] used in laboratories) at a concentration exceeding the New Hampshire groundwater standard of 3 micrograms per liter (ug/L). The 1,4-dioxane dissolved in groundwater and related to the unexpected chemical waste encountered during the 2011 excavation.
  • No other contaminants have been detected in excess of NH Groundwater Standards.
  • Working with the DES and consistent with State environmental requirements, Dartmouth conducted an extensive phased investigation and constructed a groundwater treatment system at the site related to the 1,4-dioxane. This work is focused on protecting human health and remediation of the 1,4-dioxane and will continue until the concentration of 1,4-dioxane meets the New Hampshire groundwater standard.

About Rennie Farm

Informational Links

Rennie Farm Value Assurance Program

Public Communication

Site Maps

Site Photographs

Site Work Plans


Please direct questions or concerns to Dr. Megan Sandy, Director EHS, at (603) 646-1762 or email her at
Please direct real estate questions or concerns to Tom Csatari at (603) 448-2211 or email him at

Last Updated: 5/18/20