Environmental Engineering Reference
In-Depth Information
The methodology to follow when facing a contaminated site has been described
in France in various methodological guides presented in [MAT 00] and
www.fasp.info. The steps to follow are presented in Figure 12.4.
INITIAL DIAGNOSTIC
Step B (if necessary)
Questionnaires, samples, analyses
Step A
Historical study and documentation,
site inspections
SIMPLIFIED HAZARD EVALUATION
CLASS 2
SITE TO BE STUDIED IN DETAIL
CLASS 3
NORMAL SITE
CLASS 2
SITE TO BE MONITORED
DEEP DIAGNOSTIC
-
Complete characterization of site
-
Questionnaires, samples
-
Analyses
DEFINITION OF MONITORING
PROGRAM
DETAILED HAZARD EVALUATION
YES
Acceptable
Risks
NO
POLLUTION CONTROL WORKS
-
Definition of objectives
-
Selection of adapted techniques
-
Works
EVALUATION OF RESIDUAL RISKS
Figure 12.4.
Recommended procedure for the survey of a contaminated site
The methodological steps include [BRG 00]:
− The
initial diagnosis
,
which consists of assessing the initial situation (step A),
evaluating potential hazards and defining the interventions that seem necessary. The
initial diagnosis includes a historical investigation (based on various available
