June 2017 Industrial Stormwater News

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Welcome to the Industrial Stormwater Program, June 2017 Newsletter! 

In this issue:

Featured article: mark your calendars for the next industrial stormwater training session!


Our fall 2017 ISW training sessions schedule is set!  The next U of M "permit overview" workshop will be on Wednesday September 6, 2017 at the MNDOT Training Facility in Arden Hills, MN.

This day-long session will cover permit basics, SWPPP development and implementation, and stormwater monitoring and reporting requirements.

For additional information or to register, please visit the U of M Erosion and Stormwater Management Certification Program’s website

Overdue sampling forms: lessons learned for permittees

In February 2017, the industrial stormwater program contacted more than 750 facilities that were overdue for submitting SWMRs for the first four quarters of monitoring under the 2015-2020 ISW General Permit. 

The No Flow quarters caused the most reporting confusion; below are some of the lessons we learned. We hope what we learned will also help permittees with future SWMR reporting.

No Flow reporting:

  • No Flow SWMRs must be submitted
  • No Flow "explanations" are not part of the calculations used to determine if a facility’s monitoring result averages are below the permit benchmark values
  • There is no longer a "take two subsequent samples to make up for a No Flow quarter." This was a 2010 permit requirement that expired 4/5/2015.

Monitoring quarters:

  • Stormwater monitoring began July 1, 2015, with Quarter 1 July 1, 2015-September 30, 2015.  The quarters are consecutive; they do not re-set to Q1 with each July 1, nor do they reset with each calendar year.  July 1, 2017-September 30, 2017 will be Quarter 9.

Sampling forms:

  • Make sure the calendar year and monitoring quarter are recorded on the SWMR forms.
  • Make sure all pages of the SWMR form are submitted.
  • Lab reports can have multiple pages with multiple types of data on them. If there are questions about the lab report, contact the lab about which set of numbers represent your monitoring results.
  • Don’t submit copies of the lab report; submit only the facility-specific SWMR.
  • Make sure the current SWMR form for the 2015-2020 permit is being submitted to MPCA.  Hint: the date in the lower left is:  "10/6/2015".  If your sampling form is older than that, download the new sampling form for your facility here.