Just wanted to add:
Another good way to determine if "city water" could be mounding - test for flouride. Flouridated water supplies will come up positive. Natural groundwater will be ND. (Obviously in this case the trailer park may be served by a well and not flouridated.)
This is a great thread and brings up some interesting points. I'm going through some of these issues myself - a lack of info for molasses injection as far as appropriate dilution, volumes necessary, # of injection points, etc.
I know Regenesis has calcs for their HRC product (HRC is quite...
4tuna brought out the most relevant points - PID/FID readings measure all VOCs in sample, and have a different response factor for each compound. I've found even a properly calibrated PID will slightly underestimate chlorinateds. If your system is at a petroleum site, your PID/FID is probably...
Adjusting pH is probably the best way. Unfortunately you are using the wrong technology for the job - P&T is so '80s!!! Perhaps you should look into converting your system to a multi-phase extraction system where you are only moving enough gw to lower the water table below the smear zone and...
You can model the sheet pile wall using the Wall Package - it allows for input of the wall thickness and K. You will need to modify layer(s) to simulate the depth of the wall.
The leaky pipe can be simulated in a number of ways. The drain package may work. Or perhaps you can collapse the...
Hi,
I've run across this issue in the environmental field - a large amount of imported clean fill was too fine-grained. Rather than hold up the project to dispute the specs on our fill and wait for new deliveries, cement was added for stabilization.
Added a small amount of cement will work...
MiscMetals:
Locating rebar in structural cement/concrete is relatively simple if you have the right tools. A ground penetrating radar (GPR) equipped with a 1GHz antenna can very reliably map rebar, post-tensioned cable, pipes, etc. A local geophysical subcontractor that also performs...
I am a geologist with 10 yrs experience in the environmental consulting field, the last 2 for small company I started specializing in geophysics, hydrogeology, and soil/groundwater remediation. I have done some modeling, primarily groundwater - but surface water modeling is similar.
Typically...
