The Groundwater Protection List refers to a list of pesticide active ingredients that could potentially impact groundwater due to their chemical characteristics and toxicological profile. Click here to search for registered products in Massachusetts

Herbicides

  • Acetochlor*
  • Acifluoren
  • Alachlor
  • Aldicarb
  • Atrazine
  • Bentazon
  • Bromacil
  • Cyanazine
  • Chlorthal-Dimethyl**
  • Dimethanamid
  • Diuron
  • Flufenacet
  • Fluthiacet-methyl
  • MCPA
  • Metolachlor
  • Metribuzin
  • PCP
  • Pronamide
  • Propazine
  • Simazine
  • Sulfentrazone

Insecticides

  • Aldicarb
  • Carbofuran
  • Dinotefuran
  • Disulfoton
  • Fenamiphos
  • Fonofos
  • Lindane
  • Methoxyfenozide
  • PCP
  • Propoxur
  • Terbufos
  • Thiamethoxam

Fungicides

  • Chlorothalonil
  • Cyflufenamid
  • Cyproconazole
  • Folpet
  • Fluopyram
  • Kresoxim-Methyl
  • Triticonazole
  • Sedaxane

* Acetochlor Products (such as Harness, Surpass, TopNotch, Trophy) can not be applied without a State Limited Use permit pdf format of Acetochlor Permit approved by the Massachusetts Department of Agricultural Resources

** Chlorthal-dimethyl is more commonly known by its trade name: Dacthal

Pesticide Products which are aerosols, paints, baits, animals and human products and pool products are exempt from the regulations. All pesticide products which contain active ingredients on the Groundwater Protection List are Restricted Use Products.

Very Important
If you are using any of the pesticides on the Groundwater Protection List within a town that is listed on the Zone II List pdf format of wellhead_protection_list.pdf , check to see if you are operating within a Zone II . New wells can be created and new Zone II areas delineated. 

Note 
Pesticide Products which are aerosols, paints, baits, animals and human products as well as pool products are exempt from the regulations