The Snyder Industries 650 Gallon Open Top Containment Tank is a cylindrical white vessel molded from High Density Linear Polyethylene (HDLPE) at Snyder's Chowchilla, California plant. It measures 60 inches in diameter and 58 inches tall on a 60 x 60 inch footprint, and it is built to serve as secondary containment - the open top lets you set a smaller process or day tank inside it so that any leak or overfill is captured rather than released. If you have been searching for an open top tank or vertical containment tank to sit under a primary vessel, this is the 650 gallon capture size.
Will it work for your application?
Filled with plain water, 650 gallons weighs about 5,421 pounds, and the tank carries a maximum rated contents weight of 10,300 pounds - that higher number reflects its 1.9 specific gravity rating, which is what lets it safely hold dense liquids well above the weight of water. The placement envelope is what matters most for containment duty: the primary vessel plus its supports must fit inside the 60 inch inner circle, under 58 inches of wall height. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm this 650 gallon size matches the volume of the primary tank you intend to contain, so a full release stays within the basin.
Set it on a proper pad
A loaded containment tank concentrates several tons over a 60-inch circle, so the foundation matters. Review Concrete Pad Sizing for Above-Ground Polyethylene Tanks for the framework on pad thickness and bearing, and if this tank is part of a transfer station, the loadout pad engineering guide covers curb, slope, and sump geometry. An open-top basin also suits water-reuse and aggregation trains - see the industrial water reuse tank topology guide if you are pooling grey-water, rainwater, or HVAC condensate. For static fire-water reserve, the fire-water reservoir design guide covers NFPA 22 sizing and freeze protection. See the technical drawing on this page for exact wall and dimensional detail before you pour.
The mistake to avoid
Match the containment tank to what it will actually capture, and treat it as containment - not pressurized or sealed storage. As an open top vessel it has no closed-top fittings; drains or outlets for the basin are field-added per your site plan, so confirm your sump and pumping arrangement before installation. The 1.9 SG rating means it is sized for dense liquids, but the open design is for capture and process duty only.
This tank ships LTL freight from Snyder's plant in Chowchilla, California, quoted live to your ZIP code. Get an exact rate with the Freight Cost Estimator, or call us at 866-418-1777 to confirm fit, foundation, and delivery before you order.
