ABSTRACT

This chapter presents six case studies that demonstrate the principles we have studied in this book up to this point. Those principles include:

How do contaminants get into the environment

What happens to contaminants once released into nature

Why certain contaminants cause more harm than others

How does the geologic environment influence contaminants

How much do it cost to clean up the environment

Why certain geologic environments are especially sensitive to contamination

The case studies presented in this chapter highlight the need for either improved environmental regulations or new regulations altogether within the following subject areas that are covered in the final section of this boot:

Banning or restricting the use of certain chemicals (specifically, CVOCs and CR+6)

Improving land-use planning that does not permit or limits use of certain chemical in especially sensitive geologic areas

Improving pollution prevention techniques

Sustainability regulations that incorporate science-based chemical-specific use criteria that includes mobility and persistence into evaluating chemical risk

The need for improved engineering and institutional control