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lidabc (Civil/Environmental)
21 Apr 11 12:12
I am not familiar to NFPA 820 but I just found that the storm water pumping station wet well requires "CGD" if it is enclosed (Table 4.2).

I have not seen CGD in "storm" water pump station but is it a "NEW" requirement?

If it is a new requirement, is there any good product to recommend for the storm water pump station?

Any information would be very helpful for my storm pump station design.

Have a wonderful day! Thanks-
stookeyfpe (Specifier/Regulator)
21 Apr 11 15:01
What's a CGD?
lidabc (Civil/Environmental)
25 Apr 11 16:39
CGD means "Combustible Gas Detection" system.

I thought that this requirement for storm drain system is not needed since it's different from Wastewater System which produces flammable gases.


 
Lan123 (Civil/Environmental)
29 Jul 11 21:54
As far as I know table 4.2 refers to wastewater collection systems (inclduing PS) and not "storm" water.  Anyway I  will take another look at 820 when I am back at work.

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