CONCRETE SPECIFICATIONS
Our precast concrete spill/leak containment vessels are constructed in accordance with Section 501, "Concrete Masonry", of the Standard Specifications for Road and Bridge Construction, State of Wisconsin Department of Transportation.

The concrete is air-entrained and has a minimum of 4000 PSI compressive strength when delivered.  Compressive strengths of over 7000 PSI are common in our vessels after 30 days.  The reinforcing steel is grade 40, No. 4 bars on 12" centers each way.  The reinforcing is designed for the dynamic forces that exist when transporting the units.  These forces exceed those experienced on the site.

LIQUID REMOVAL SYSTEM
To allow for removal of rainwater, as required by s. ILHR 10.345 (1) (b), or the recovery of spilled or leaked petroleum products, we provide a siphon arrangement mounted on the wall of the vessel.  This siphon automatically breaks when the vessel empties and must be manually primed the next time the owner wishes to discharge the contents.  This arrangement is an improvement over a simple pipe and faucet or plug, which could be left open.

COLLISION PROTECTION
Anchor bolts are furnished to tie down the petroleum storage tanks.  No additional clearance for collision protection is required provided the tank is centered in the vessel and firmly bolted to the vessel.   These anchor bolts will prevent the floatation of any empty tank by rain water.

OPTIONAL FENCE AND/OR ROOF
We have available an optional fence system that mounts on the walls of the vessel.  Wisconsin Administrative Code s. ILHR 10.415 (5) (a) requires a 6' high building or fence around the tank and secondary containment if the property does not have a perimeter security fence.  Also available is a metal roof package that mounts on the fence posts.  The roof will reduce the accumulation of rain, snow or ice.

Product Details
Click below to view detailed drawings of specific Models
Model SL550A
Model SL1000
Model SL1500
Model SL2000

PRODUCT APPROVAL
These products have a Building Material Approval from the Safety and Buildings Division of the Wisconsin Department of Industry, Labor and Human Relations (Approval #910002-U).  They are approved for use as dike systems in conformance with s. ILHR 10.345 (1) and also conform to the requirements of s. ILHR 10.345 (1)(a) for the above tank sizes, s. ILHR 10.415 (13)(a) for clearances for visual inspection and s. ILHR 10.345 (1)(b) for the siphon system for removal of liquid in the vessel and collision protection in accordance with s. ILHR 10.415 (8).