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  1. GreenSystems

    Internal roof drains and freezing

    My first reply was to bimr. Thank you to Ron for that response as well. I think the concerns have been less with fast flow associated with rain event, and more with snow melt that could refreeze at the outlet (i.e. the icycle phenomenon). I don't see that as likely to freeze up to the point...
  2. GreenSystems

    Internal roof drains and freezing

    THank you. We have indeed incorporated such a feature into our designs that we have undertaken from scratch. Unfortunately, we were designing on the fly for a previous project. The contractor asked us where to set the outlet and we hadn't considered all of the plumbing issues at the at point...
  3. GreenSystems

    Internal roof drains and freezing

    We are working stormwater projects involving the disconnection of impervious surfaces from the local CSO. Some of the buildings associated with our projects are equipped with internal roof drains directly connected to the sewer system in the building basements. We are looking to disconnect...
  4. GreenSystems

    Traditional stormwater modeling and green infrastructure

    Yup. I will be looking at that. Thanks.
  5. GreenSystems

    Traditional stormwater modeling and green infrastructure

    Does anyone have a recommendation for a stormwater/BMP modeling software that incorporates traditional siumulation methodology(ies), but can evaluate wetlands (instead of traditional ponds), green roofs, porous pavement, etc.? I have been looking at HydroCAD, PondPack. Any others I should be...
  6. GreenSystems

    SWPPP fee

    I wondered about that (FUOF) myself.
  7. GreenSystems

    SWPPP fee

    Thank you all. The maintenance, inspection, etc. would be excluded from the Stormwater Pullution Prevention Plan (SWPPP). I do need to figure out how to fit the existing Erosion and Sediment Control (ESC) plan into the mix. For now, I am going to have to go the verbiage route, and state that...
  8. GreenSystems

    SWPPP fee

    I've been asked to quote a SWPPP for a 1 acre commercial development in Massachusetts. What would representative fees be for such an effort, without the ESC plan component (that's been done already)? I need a sanity check on my T&M estimate. Thank you!

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