top of page

Mastering Industrial Stormwater Compliance: Part 2 - After the Storm

Congratulations on obtaining your industrial stormwater general permit and developing a comprehensive Stormwater Pollution Prevention Plan (SWPPP). Now that you have the necessary authorization in hand, it's time to shift your focus to the critical phase of compliance. Welcome to the second part of our two-part industrial stormwater blog series, "After the Storm". In this blog, we will guide you through the essential steps to follow after your industrial facility has received coverage under an industrial stormwater general permit. We'll explore the crucial aspects of recordkeeping, inspection, monitoring, and reporting that are commonly required within industrial stormwater general permits. Staying compliant is not just a legal obligation but a moral responsibility towards safeguarding our environment.

This is the second of a two part blog, if you missed the first "Before the Storm", read it HERE.

Flooding Streets from Storm Water

The Importance of Master Industrial Stormwater Compliance

Compliance with stormwater permits is vital for protecting our waterways and surrounding ecosystems. Uncontrolled stormwater runoff from industrial sites can carry a significant amount of pollutants, including sediments, heavy metals, chemicals, and nutrients, which can have adverse effects on aquatic life and water quality. By adhering to permit requirements, you can effectively reduce the environmental impact of your industrial operations and demonstrate your commitment to responsible environmental stewardship.

Recordkeeping: The Backbone of Compliance

Keeping accurate and detailed records is the backbone of a compliant stormwater program. Maintaining meticulous records allows you to track your facility's stormwater management efforts, assess the effectiveness of implemented BMPs, and respond promptly to any deviations from permit requirements.

Records to maintain typically include inspection reports, maintenance records for BMPs, employee training logs, monitoring data, and any corrective actions taken. These records not only help you stay compliant but also come in handy during permit renewals and audits.

Regular Inspections to Identify and Address Issues

Regular inspections are essential to identify potential problems in your stormwater management system. Inspections should be conducted at specified intervals as outlined in your SWPPP and industrial stormwater general permit.

During inspections, look for signs of erosion, sediment buildup, or improper functioning of BMPs. If any issues are identified, take immediate corrective action to mitigate their impact and prevent further harm to the environment.

Monitoring and Sampling for Water Quality Assessment

To gauge the effectiveness of your stormwater management efforts, monitoring and sampling play a crucial role. Monitoring involves measuring the quality of stormwater runoff leaving your facility and comparing it to the permit limits and water quality standards.

Sampling should be done regularly, especially during storm events, to capture the variability in stormwater discharges. Analyzing the collected samples will help you identify potential pollutants of concern and evaluate whether your BMPs are effectively controlling them.

Reporting: Fulfilling Your Reporting Obligations

Reporting is a vital component of compliance, as it allows regulatory agencies to track the performance of your industrial stormwater program. Your industrial stormwater general permit will specify the frequency and content of required reports.

Typical reporting obligations may include submitting annual reports detailing your facility's stormwater monitoring results, BMP effectiveness assessments, and any corrective actions taken. Accurate and timely reporting ensures transparency and facilitates effective environmental oversight.

Remaining Proactive and Adapting to Changes

Environmental regulations and permit requirements are subject to change over time. As a responsible industrial operator, staying proactive and being aware of any regulatory updates is essential. Periodically review your SWPPP and permit conditions to ensure they align with the latest guidelines and adjust your stormwater management practices accordingly.


Successfully obtaining an industrial stormwater general permit and developing a comprehensive SWPPP is just the beginning of your environmental journey. The real challenge lies in maintaining compliance and effectively managing stormwater runoff to protect our precious water resources.

In this second part of our series, "After the Storm," we explored the crucial steps to ensure compliance in your industrial stormwater program. Recordkeeping, regular inspections, monitoring, and reporting are the cornerstones of a successful stormwater management strategy. Embrace your role as a steward of the environment and continue to evolve your stormwater program to meet changing regulatory requirements and uphold your commitment to sustainable industrial practices.

Together, let's create a future where industries thrive without compromising the health of our waterways and ecosystems.


bottom of page