The CETESB Board of Directors Decision No. 38/2017C of 02/07/2017, also known as DD038, establishes the guidelines for the contaminated site management, starting with the Preliminary Assessment - Phase 1 and continuing to the subsequent stages, as summarized in the flow chart below.

This is a more detailed study, which addresses all items of NBR-15,515-Part 1 and goes into more relevant aspects to identify soil and groundwater contamination.
Cesteb DD38 Audits