Within Wellhead Protection Area B where the vulnerability
score is 10, any existing storage of ASM or NASM where it is a significant
threat is designated for the purpose of Section 58 of the Clean Water Act, and requires a Risk Management Plan. This
includes, for example, but is not limited to the following (for full
circumstance details refer to the Technical Rules):
a) Agricultural Source Materials
(ASM) in any quantity, including at or above grade temporary field nutrient
storage sites.
b) Non-Agricultural Source
Materials (NASM), including at or above grade temporary field nutrient storage
sites.
The Risk Management Official shall negotiate or establish a
Risk Management Plan with the person engaged in the designated threat activity
within five years of the Plan coming into effect. The RMP shall include terms
and conditions which when implemented will ensure that existing operations
continue to function in a manner which minimizes the risk to sources of
municipal drinking water.