Sizing of a dike

[SrChemE]

Hello,
We are in the process of installing a larger tank inside a dike.
The Dyke Containment Structure needs to be extended and or heightened to accommodate the new larger tank installed.
The new installed tank has twice the capacity then the old tank, 500 vs 250 gallons.

We need to make sure that the final sizing meets regulations, properly accounts for material inventory, rain water, and volume occupied by equipment installed in the dike.

Can somebody help in letting me know what is required per regulation and how to size the dike?
Also, do I need to account for potential rain water accumulation?
Thanks!

 

[pennpiper]

SrChemE ,
You also need to allow for Fire Water.
Contact me jopennock(at)netscape(dot)net


Sometimes its possible to do all the right things and still get bad results

 

[mk3223]

IMO, the NFAP or EPA SPCC specify the size of the secondary containment which may be seen as a minimum requirement. The Owner or Local AHJ may specify additional capacity as required to accommodate the rain water or firewater.

 

[bimr]

It depends on the regulations where your project is located which is unknown.

Generally, you would want to size the secondary containment volume to hold the volume of the tank in the secondary containment plus the maximum 24-hour rainfall event.