The Norwesco 3450 Gallon Dark Green Vertical Water Storage Tank is a full-size, above-ground vertical tank built for bulk water storage on farms, ranches, fire-protection reservoirs, rainwater systems, and remote-site supply. It holds 3,450 gallons in a polyethylene body that stands 119 inches tall on a 96 x 96 inch footprint, which on a round vertical tank means a 96-inch (8 ft) outside diameter. The dark green color cuts light penetration to discourage algae growth in stored water. If you are searching for a vertical water storage tank that handles serious volume without going to steel or concrete, this is the size most rural water storage and remote-site projects land on.
Will it work for your site?
This is a vertical storage tank rated for a specific gravity of 1.0, meaning it is engineered for water and water-weight contents. Filled to capacity, the water alone weighs 28,773 pounds, which is also the maximum rated contents weight for this tank. That number drives the rest of your install: the pad underneath carries nearly 14.4 tons across a 96 x 96 inch footprint, which works out to roughly 450 pounds per square foot (about 3.1 psi) of bearing pressure your contractor can take straight to a slab design. Plan the foundation before the tank arrives. Our concrete pad sizing guide walks through the ACI 360R-10 framework for above-ground polyethylene tanks so the slab matches the load. If you are still confirming whether 3,450 gallons is the right capacity, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide first.
Dimensions and what to verify before you commit
Confirmed dimensions are 119 inches tall, a 96-inch (8 ft) diameter, and a 96 x 96 inch footprint — check that against your gate, doorway, and pad-layout clearances early. See the technical drawing on this page for fitting locations and detailed measurements before you finalize plumbing or order valves; bulkhead fittings, gaskets, and valves should be sized off the drawing-shown ports rather than assumed. The most common mistake on a tank this size is treating it as a higher-density vessel: the 1.0 specific gravity rating is for water-weight contents only. If your application involves anything heavier than water, this tank is not rated for it, and you would need a higher-SG-rated tank. For pure water storage, rainwater capture, or fire reservoir duty, the 1.0 rating is exactly what you want.
Commissioning the tank
On a vertical tank carrying this much weight, the first fill is also your acceptance test. Watch for pad settlement and check every fitting for leaks as the level rises. Our hydrostatic test methodology guide covers water-fill discipline, settlement monitoring, and hold-time math for a clean new-install acceptance. For fire-protection reservoirs in rural or remote service, our fire-water reservoir design guide covers NFPA 22 sizing and freeze protection. If you are aggregating grey-water, rainwater, or HVAC condensate, the industrial water reuse topology guide shows how this size fits into a banded storage train.
This tank ships LTL freight from Fairfield, TX, with freight quoted live to your ZIP. On a tank in the 28,773-pound-full class, freight cost scales hard with distance from Fairfield, so get your exact number before you commit. Pull a quote through the Freight Cost Estimator, or call our team at 866-418-1777 to confirm sizing, pad requirements, and delivery scheduling before you order.
