Groundwater is water below the ground surface in the cracks and spaces in soil, sand, and rock. Find information here about the importance of groundwater, the discharge permitting process, online reporting, and more.
The beneficial reuse of biosolids in Massachusetts through land application, typically as fertilizer or soil conditioner depending on the type of biosolid generated.
Guidance, policies, regulations, frequently asked questions, fact sheets and other reference materials relative to conventional septic systems and innovative or alternative wastewater treatment systems.
Managing combined sewer overflows in Massachusetts.
The NPDES program controls water pollution by regulating point sources (e.g., manufacturing, construction sites) that discharge pollutants to surface waters.
MassDEP regulates the discharge, treatment, and storage of industrial wastewater to protect water resources in the Commonwealth.
Stormwater permitting in Massachusetts and resources for environmentally-sound stormwater management.
Environmentally-safe reuse of treated wastewater for landscaping, irrigation, and toilet-flushing.
Listings of treatment plants, tools and resources for operators, and information about operator training.
Groundwater discharge, reclaimed water, stormwater, NPDES, industrial wastewater, residuals, sewer permits, and wastewater-operator certification forms.
Documents interpreting MassDEP regulations and how to comply with them.
Regulations and standards governing the protection of water resources in Massachusetts.
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