Tag: Stormwater Best Management Practices

MS4 Timeline: The Second Annual Report & What’s Next

MS4 timeline with relevant dates

September 2020 marks another year for MS4 permitting in New Hampshire. Since MS4 rules were updated in 2017, we have continued to help communities regulate their stormwater discharges to meet these new requirements. This month on the MS4 timeline, communities should be aware that Second Annual Reports are due.

First, let’s back-track and recall that MS4 permitting refers to regulations in place to manage stormwater in a community. Stormwater outfalls from an MS4 area must be located, mapped, and assigned a unique identification number. Then, inspections and condition assessments must be completed for each outfall based on priority ranking. We have a detailed post about what happens if you observe flow during dry weather and different outfall rankings based on testing samples. We also identified a timeline  following the initial mapping, focusing on what happens after the first annual report. With September’s deadline quickly approaching, here is what communities can expect with the next steps.

The Second Annual Report

Communities should be submitting their second annual reports to EPA by September 28, 2020.

EPA has provided a partially filled-in report template to permitees; EPA has provided a partially filled-in report template to permitees; however, the New Hampshire stormwater coalitions have modified the template to be more user-friendly. The updated template can be found as part of the Coalition blog site here: NH Stormwater Coalition Annual Report for Year 2 Template.

We have worked with a half dozen small communities in New Hampshire to prepare them for their annual reports. In some communities, this means we mapped, visited, and screened their outfalls, and provided training. For others, we helped coordinate stormwater team meetings and activities, or just provided reassurance. After working with several communities, we’ve found that the same hurdles present themselves and have gathered a few tips to help the process move smoothly:

  • Do not omit information. When filling out the second annual report, be sure to take credit for everything that had progress between July 1, 2019 and June 30, 2020.
  • Take time now to review the requirements for the next report. Some required activities or tasks are more easily performed during specific times of the year; now is a good time to plan how to keep up with your Stormwater Management Program activities.
  • Be conscious of the timeframe.  Any efforts begun, but not completed in the Year 2 timeframe, cannot be marked complete. Any progress should be mentioned in the comments section.

What Next?

The most important thing to keep in mind is that as each year of the permit term passes, the stringency of the requirements increases. There is no time for rest or relaxation – pull out that Stormwater Management Program and see what elements (written program updates, outfall screenings, training, regulatory review and updates, stormwater management device Inspection, etc.) are required to be completed when the complete outfall ranking (based on dry-weather samplings) is due – June 30, 2021. Reviewing the required elements ahead of time will help with early coordination of next year’s report.

Not every MS4 community will encounter the same challenges. Meeting these deadlines and documenting all stormwater sources can be time consuming and difficult. Our stormwater experts are here to help and are fully prepared to help with unique challenges and stormwater setbacks. Reach out to our experts Heidi Marshall, PE or Michael Trainque, PE with stormwater inquiries!

*This post was co-written by Catie Hall, marketing coordinator. MS4 Expert Michael Trainque, PE also contributed to this post.

First Response: Storm Damage Mitigation of BMP Failure Presentation

I didn’t know what to expect. I had been to conferences before, seen many presentations, but never had to give one of my own. I thought, why not, I can do this. I got off the plane in Austin on Monday night and took the bus to the hotel. I had just missed the welcome social hour so I decided to relax before two full days of conference proceedings.

I got up early Tuesday morning to practice my presentation, although I wasn’t supposed to present until the following day. I got ready for the day and attended various half hour presentations about best Management Practices (BMP) Case Studies, Green Infrastructure, and Advanced Research Topics. Over a hundred vendors were gathered in one room promoting their products and answering questions. Tuesday night ended with a gala for all the conference exhibitors, speakers, and attendees. I met various engineers, managers, and product specialists.

Wednesday morning started early, like Tuesday, with me practicing my presentation before my 10:00 AM time slot. I got to my conference room early so I could set up and just as I fumbled through some minor technical difficulties, attendees started filling the room. Ten… twenty… fifty – I could not keep up with the headcount – all I knew was it was a full house. The moderator introduced me by reading my biography and as I stood up, I took a deep breath and started presenting. I knew what I wanted to say. I knew what slide was next. It was just like I had practiced. I had 30 minutes to present; but finished in 20 – a little fast, but I nailed the important discussion points.

I wanted to emphasize the intensity of the storm that caused the erosion at the airport. I wanted to emphasize the magnitude of the erosion along with the length and steepness of the eroded slope. And finally, I wanted to emphasize the various stormwater BMPs that were used in the design of the slope stabilization to prevent future failures along with the short amount of time available to do the design. I explained the various detention ponds and the closed drainage system that we designed to convey the stormwater from the top of the hill to the bottom. I showed details of the detention ponds and swales along with the different types of stabilization we used on the steep slopes.

It was now time for questions. What were they going to ask and would I be able to answer them? Three questions were asked and confidently I was able to answer them. I knew why we did what we did and what the design controls were and could therefore speak confidently about why we came up with the design we did.

And then it set in… it was over and I nailed it. Breathing resumed. It felt good to be done and to feel good about my presentation.

*This post was reviewed and updated in 2020.