6.5.6 Water Conservation and Pollution Prevention 6.5.7 Soil and Groundwater 6.5.8 Control of Toxic Substances 6.5.9 Handling of Hazardous Waste 6.6 Byproduct Utilization 6.7 Environmental Accounting 6.8 Legal Compliance 6.9 Green Building 6.10 Environmental grievances 55 6.