This copy of the Massachusetts Contingency Plan, 310 CMR 40, is not an "Official Version" of the regulations. In particular, it lacks page numbers and the effective dates at the bottom of each page. Other unexpected differences may also be present. This HTML version is offered as a convenience to our users and DEP believes that the body of the text is a faithful copy of the regulations. If you REALLY, ABSOLUTELY, MUST know that the version you have is correct and up-to-date, then you must purchase the document through the State Bookstore. The official versions of all state statutes and regulations are only available through the  Massachusetts State Bookstore .

 

SOIL CATEGORY SELECTION MATRIX - HUMAN EXPOSURE POTENTIAL

 

RECEPTOR CHARACTERISTICS
 

CHILDREN PRESENT

ADULTS ONLY PRESENT
 

HIGH FREQUENCY

LOW FREQUENCY

HIGH FREQUENCY

LOW FREQUENCY

Accessibility of Soil

High Intensity

Low Intensity

High Intensity

Low Intensity

High Intensity

Low Intensity

High Intensity

Low Intensity

ACCESSIBLE (SURFICIAL) SOIL
0 <= 3'
(unpaved)

CATEGORY S-1

S-2

S-1

CATEGORY S-2

S-3

POTENTIALLY ACCESSIBLE SOIL
3 <= 15'
(unpaved)
or
0 <= 15'
(paved)

S-1

CATEGORY S-2

S-3

S-2

CATEGORY S-3

ISOLATED SUB-SURFACE SOILS
> 15'
or under the footprint of a building or permanent structure

 

 

CATEGORY S-3

 

 

CATEGORY S-3

* - Category S-1 also applies to any accessible soil where the current or reasonably foreseeable use of the soil is for growing fruits and vegetables for human consumption