Industrial Storm Water General Permit Reminders

​For some industrial facilities located in the Muskegon River and other Michigan watersheds, April 1, 2018 brings some new requirements for your storm water programs.  These requirements will include:
·         Determining specific drainage characteristics of your property
·         Selecting storm water sampling points
·         Storm water sampling - Visual Assessments
·         Storm water sampling procedures
·         Procedures for collecting and evaluating water samples.
 
So, what are these new requirements actually asking of you?  Here’s is some valuable information to help you understand the rest of the story.
 
Visual Assessments
For many companies this is a new requirement.  When performing Visual Assessment (VA) the main theme to remember should be consistency, which means doing the same procedure the same way – every time.  When you create your procedures make sure a description of the supplies, apparatus and sample jars to be used are specifically identified and that these items are available each time you collect and evaluate a sample. 
 
For example, viewing your sample under consistent lighting and in front of a white backdrop are good practices to implement when making your observations.  When you keep your apparatus consistent, then it will be easier to demonstrate that your samples have been evaluated in the same way every time. 
 
Drainage Area & Sample Locations
The regulations require that you delineate the drainage areas within your facility and identify all of the potential pollutants that could possibly be in the storm water from those drainage areas.  This is a great time to be best friends with your maintenance manager because you will likely need sewer maps and other information to complete this task.
 
For each sample location consider how each sample will be collected and the equipment you might need.  Include safety considerations and safety procedures when determining your sampling methodology.  For instance, some locations may be steep and have thick vegetation to contend with, while others may have heavy traffic concerns.  Considerations should be made for engineered access points, traffic cones, barriers and even temporary traffic diversions.  Work with your maintenance or grounds staff to help make each sample location accessible and safe. 
 
SRM has Certified Storm Water Operators that can assist you with your storm water needs.  Give us a call!  For more MDEQ information, visit their industrial storm water web page.