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Clean Water Act Explainer: Section 403

Law Office of Frank Hammond Jan. 7, 2025

The Clean Water Act (CWA) is a federal legislation passed in 1972 that is aimed at improving and protecting water quality throughout the United States. While Section 402 deals with the National Pollutant Discharge Elimination System (NPDES), Section 403 introduces additional requirements for discharges, specifically in territorial seas, contiguous zones, and oceans.  

At the Law Office of Frank Hammond in Portland, Oregon, we're committed to helping businesses, developers, and municipalities understand their obligations under the CWA and operate responsibly to avoid legal complications. Here, we strive to break down what Section 403 entails, how it interacts with other provisions of the Clean Water Act, and its implications for business and corporate entities. 

Clean Water Act: Section 403 Overview

Section 403 of the Clean Water Act, officially known as the “Ocean Discharge Criteria,” establishes requirements for discharges into ocean waters. This section is designed to complement the broader mandates of Section 402 by addressing the challenges associated with preserving ocean ecosystems.  

While Section 402 governs point source discharges into all U.S. waters, Section 403 focuses specifically on ensuring that any discharge into the territorial seas, contiguous zones, or beyond meets stringent environmental standards to prevent harm to marine life or water quality. The main goal is to protect ocean ecosystems by regulating the quality and quantity of pollutants entering these bodies of water.  

Key Requirements Under Section 403

To comply with Section 403, entities must undergo a thorough assessment of their discharge activities. The EPA evaluates the following critical factors as part of the ocean discharge criteria: 

  1. Impact on marine life: This includes the effects of pollutants on the diversity, productivity, and viability of marine ecosystems. Discharges must not adversely affect fish, coral reefs, shellfish, or other aquatic organisms. 

  1. Pollutant accumulation: Section 403 requires an analysis of whether the proposed pollutants will accumulate in marine organisms or sediments, potentially causing long-term ecological harm or entering the human food chain. 

  1. Effects on public health and recreation: Discharges must not pose risks to public health due to contaminants in water or seafood. They should also have minimal interference with recreational activities like swimming, fishing, or boating. 

  1. Discharge location: The location and depth of the discharge play a significant role. Discharges far from sensitive habitats or in areas with robust dilution and dispersion properties are more likely to gain approval. 

  1. Economic and social factors: While environmental impact is the primary focus, the EPA also considers the economic and social benefits of proposed discharge activities. 

  1. Alternative solutions: Entities seeking the discharge of pollutants must demonstrate that other reasonable and environmentally safer alternatives to discharging into the ocean have already been considered and found to be nonviable. 

When submitting a permit for review, the EPA will conduct a rigorous analysis to make sure the applicants meet all these criteria before being approved under Section 403. 

Permit Requirements and Compliance Requirements

Under Section 403, permit applicants seeking to discharge pollutants into ocean waters must demonstrate compliance with the specific “ocean discharge criteria” established by the Environmental Protection Agency (EPA). 

To obtain a permit under Section 403, applicants must meet certain requirements and provide detailed information about their proposed discharge. This includes:  

  • The type of pollutants being discharged 

  • The volume and frequency of the discharges 

  • Any potential impacts on ocean ecosystems 

Once a permit is obtained, businesses must comply with all conditions outlined in the permit to avoid legal consequences. Failure to comply with Section 403 standards can result in significant penalties, including fines and potential civil or criminal liability. 

Who Needs to Comply with Section 403? 

Compliance with Section 403 of the CWA is mandatory for any entity planning to discharge pollutants into ocean waters and for businesses operating near or within U.S. ocean waters. Common organizations that must adhere to these regulations include: 

  • Industrial facilities: Industrial facilities, factories, or processing plants that generate wastewater needing ocean disposal. 

  • Municipal wastewater treatment plants: Local governments or utility companies handling wastewater treatment and discharge near coastal regions. 

  • Aquaculture operations: Businesses involved in fish farming, shellfish cultivation, or similar activities located offshore. 

  • Energy companies: Entities operating offshore oil platforms, wind farms, or other ocean-based energy projects. 

  • Maritime shipping operators: Companies whose vessels generate ballast water or utilize anti-fouling treatments that may pollute the ocean. 

Complying with Section 403 is a crucial step in preserving the health of our oceans and marine ecosystems. These bodies of water play a critical role in regulating global climate patterns, supporting diverse marine life, and providing important resources for human use.  

At the Law Office of Frank Hammond, we are committed to helping our clients understand and comply with the environmental regulations of the Clean Water Act. Contact us to schedule a free consultation. 

Potential Penalties for Non-Compliance

Failing to comply with Section 403 can lead to severe legal and financial repercussions. Businesses that discharge pollutants without obtaining the necessary permits or violate the conditions of their permits may face significant fines, operational shutdowns, and damage to their reputations.  

Under the Clean Water Act, penalties for violations can reach tens of thousands of dollars per day, which makes proactive compliance essential for businesses to remain in operation. 

Oregon-specific penalties may also apply, including sanctions for breaching state environmental standards. The Oregon Department of Environmental Quality (DEQ) has the authority to investigate and enforce violations, which may result in additional fines or the revocation of state permits. 

Section 403 and Oregon’s Ocean Waters

Under Oregon’s Department of Environmental Quality (DEQ), additional scrutiny is often applied to entities seeking to discharge pollutants into areas that impact coastal ecosystems. Oregon’s Territorial Sea Plan emphasizes sustainability, which means applicants may face stricter state-level requirements beyond the established federal provisions.  

For example, projects involving wastewater discharges from industrial facilities, aquaculture operations, or maritime vessels are subject to joint review by the EPA and Oregon DEQ to ensure compliance with both federal and state regulations. 

Oregon also works closely with the National Marine Sanctuaries system, which can impose further limitations in specific protected zones, such as near the Oregon Coast National Wildlife Refuges. It's important for business and industrial entities that are planning activities along the Oregon coast to anticipate these added layers of oversight. 

Contact an Experienced Attorney Today

Understanding the requirements of Section 403 is crucial for any entity that seeks to potentially discharge pollutants into Oregon’s territorial waters, congruous zones, or oceans. If you have questions about your obligations under the Clean Water Act or need assistance with the permitting process, reach out to an experienced environmental litigation attorney for legal guidance and support. 

Based in Portland, Oregon, we serve clients across the state, including communities in Eugene, Salem, Astoria, Newport, Bandon, Medford, and Bend. Reach out to the Law Office of Frank Hammond today to schedule a free consultation.