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What you need to know

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Why is groundwater so important?
MassDEP regulates industrial wastewater to protect our water resources.
This guide describes the permitting process for discharges of sanitary or industrial wastewater. Consult this guide if your facility also uses reclaimed water in conjunction with a discharge.
How MassDEP regulates combined sewer overflows and sewer systems in Massachusetts.
Reuse of treated wastewater residuals & biosolids is an environmentally safe process.
When and how to reuse treated wastewater safely.
Watershed-Based Plans organize information about the state's water bodies. The purpose of this is to help design projects to protect the watersheds.
This program offers loans to communities to develop septic management plans.
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