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Subject segment: THE DOCUMENT PROVIDES THE TECHNICAL BACKGROUND {AND} JUSTIFICATION FOR THE US ENVIRONMENTAL PROTECTION AGENCY S EPA FINAL REGULATION 40 CFR PART 503 COVERING THE LAND APPLICATION OF SEWAGE SLUDGE THE DOCUMENT SUMMARIZES CURRENT PRACTICES IN LAND APPLICATION {AND} PRESENTS DATA SUPPORTING THE RISK ASSESSMENT METHODOLOGY USED TO DERIVE HUMAN HEALTH {AND} ENVIRONMENTAL RISK BASED LIMITS FOR CONTAMINANTS IN LAND APPLIED SEWAGE SLUDGE THE MANAGEMENT PRACTICES ASSOCIATED WITH LAND APPLICATION ARE OUTLINED {AND} THE DIFFERENT PATHWAYS BY WHICH CONTAMINANTS REACH HIGHLY EXPOSED INDIVIDUALS HEIS THROUGH LAND APPLICATION ARE DISCUSSED