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The Department’s Groundwater Protection Regulations are intended to prevent contamination of public drinking water supply wells through regulating the application of pesticide products on the Groundwater Protection List within primary recharge areas. A primary recharge area is either an “Interim Wellhead Protection Area” or a “Zone II. ” The following step-by-step approach should enable applicators to determine if they need to comply with the regulations.
The groundwater protection regulations apply only to pesticides which are on the Groundwater Protection List. The list is maintained on the Department of Agricultural Resources website. If the active ingredient is listed, the applicator must then establish if the pesticide application is to be made in a regulated primary recharge area
The pesticide groundwater protection regulations ONLY apply to regulated primary recharge areas designated as a Zone II or an Interim Wellhead Protection Area (IWPA) by the Massachusetts Department of Environmental Protection (MassDEP). To establish if you are in a regulated primary recharge area, you will need to follow the approach outlined in the following section:
How to Establish The Location of a Regulated Primary Recharge Area- Zone II or IWPA
A. Check to see if the area where the application is to be made is located in a regulated wellhead protection area. The MassGIS Online Data Viewer allows viewing of a detailed map of regulated primary recharge areas (Zone II's or Interim Wellhead Protection Areas (IWPAs). You should be comfortable with computer use if you follow this route. Follow this link to the data viewer...
B. Traditional Options
If you do not have Internet access:
If your area of application is located with the primary recharge area, you must determine if you are applying to an area with less than 50% foliar ground cover or greater than 50% foliar ground cover. Proceed to Step 3.
To apply a pesticide which is listed on the groundwater protection list within a Zone II or IWPA (which is permitted to pump greater than 100,000gpd) the applicator must distinguish between the following application scenarios and decide which scenario best applies :
A. For a pesticide product which is applied to an area which has greater than 50% foliar ground cover the applicator must ensure that:
B. For a pesticide product which is soil applied or applied to an area with less than 50% foliar ground cover the applicator must ensure that: