DEQ is responsible for administering state laws and regulations to improve and protect Virginia's streams, rivers, bays, wetlands and ground water for aquatic life, human health and other beneficial water uses. DEQ works with citizens, businesses, local governments and other state and federal agencies to plan and implement strategies and programs that protect Virginia’s water resources. Permits are issued to businesses, industries, local governments and individuals that take into account physical, chemical and biological standards for water quality. Sustainability and availability of the Commonwealth’s water resources are addressed through regulations and cover water use, water withdrawals and water conservation.

Core responsibilities include:

• Chesapeake Bay
• Water Quality
• Water Quantity
• Stormwater
• Wastewater
• Wetlands and Streams
• Land Application and Beneficial Reuse
• Clean Water Financing