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  1. jjdj

    Wastewater sampling to support septic system

    I work in the construction development department at a restaurant company. I have a new site, in Connecticut, that is will occupy a space that was former pizza place. The entire strip center is tied to a septic system. The CT Dept. of Env. Protection is requiring us to collect wastewater samples...
  2. jjdj

    Sewer line removal and pump around

    Thanks dicksewerrat. So if I calculate the velocity exiting this pipe using the mannings formula that will give me the maximum velocity and then the maximum Q after multiplying V*A, correct? Then base my pump size on this capacity. Do I need to know the upgradient contributions to this line...
  3. jjdj

    Sewer line removal and pump around

    Question: I work on an enviromental remediation project where we need to remove a section of a sewer line due to contamination. What we need to do, is order the correct rated pump to handle the flow rate of liquids that would normally pass through this line from the upgadient areas. There are...
  4. jjdj

    Cutoff Wall Design

    I am not an expert on this matter but have looked into it for one of my jobs where we wanted to cutoff groundwater for a deep excavation. We are currently looking at using sheet pile with seals added in between sheets. You can either apply a compound (with a caulk gun type application)as you...
  5. jjdj

    Design of a pump around system

    Question: I work on an enviromental remediation project where we need to remove a section of a sewer line due to contamination. What we need to do, is order the correct rated pump to handle the flow rate of liquids that would normally pass through this line from the upgadient areas. There are...

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