Federal Clean Water Act

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Federal Clean Water Act

• Requires states to maintain Water Quality
  Standards

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Water Quality Standards Comprised of Three
Components

• Water Uses
• Criteria to protect these uses
• Antidegradation

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Definition of Key Concepts
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EXISTING WATER QUALITY
DISSOLVED OXYGEN MG/L
DEGRADATION
5
WQS
POLLUTION
0
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Antidegradation Regulations

• 25 PA Code
• Chapter 93.4

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COMMONWEALTH OF PENNSYLVANIA Department of
Environmental Protection For more information,
visit DEP directly at www.dep.state.pa.us or
through the PA PowerPort at www.state.pa.us
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TABLE OF CONTENTS

• Chapter 1. General Overview
• Chapter 2. Existing and Designated Uses
• Chapter 3. Threatened and Endangered
  Species
• Chapter 4. Processing of Petitions,
  Evaluations and Assessments to Change a
  Designated Use
• Chapter 5. Qualifying as High Quality or
  Exception Value Waters
• Chapter 6. Protection of High Quality and
  Exceptional Value Waters

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TABLE OF CONTENTS(CONTINUED)

• Chapter 7. Nondischarge Alternatives
• Chapter 8. Non-Degrading Discharges
• Chapter 9. Antidegradation Best Available
  Combination of Technologies (ABACT)
• Chapter 10. Social or Economic Justification
• Chapter 11. Nonpoint Source Controls
• Chapter 12 . Public Participation

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Point Sources

• Non-discharge Alternatives
• Non-degrading Discharge Alternatives
• SEJ for HQ Waters

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Non-Point Sources

• Cost Effective and Reasonable BMPs