The Norwesco 6500 Gallon Light Blue Heavy Duty Vertical Storage Tank is a large-format polyethylene vertical tank built for bulk water storage where footprint and stored-weight discipline both matter. It holds 6,500 gallons, stands 150 inches tall on a 119 x 119 inch square footprint, and carries a 1.9 specific-gravity rating, meaning the wall is built to hold contents up to 1.9 times the density of water, roughly 15.8 pounds per gallon versus about 8.3 for plain water. That gives you real margin if you store softened, mineral-laden, or slightly denser-than-water solutions rather than running the tank at its ceiling.
Will it work for your site?
Plan around two numbers and one location. Filled with water this tank carries roughly 54,210 pounds of contents; the 1.9 SG rating extends that to about 102,999 pounds of rated stored contents. The 119 x 119 inch footprint drives your pad: a 6,500-gallon column running past 27 tons full needs a properly sized, level, continuously supported concrete base. Our Tank Sizing Calculator and Tank Sizing Guide help confirm capacity and clearance before you commit, and our guide to concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework for a base at this scale. This Norwesco vertical tank ships from one of two plants, Hanford, CA or St. Bonifacius, MN, so West Coast sites pull from California and Midwest and eastern sites from Minnesota, which materially changes your LTL cost. Fitting details for your model appear on the technical drawing on this page, so reference it for outlet and lid placement rather than assuming.
Common applications
At this volume the tank suits bulk water storage, agricultural and irrigation reserves, rainwater capture reserves, and stored fire-protection water for rural and remote sites. If you are building a private fire-water reservoir, our discipline on fire-water reservoir tank design covers NFPA 22 sizing and cold-climate freeze protection. For harvesting programs, our write-up on rainwater harvesting and first-flush diverter sizing and our industrial water reuse tank topology guide cover grey-water, rainwater, and condensate aggregation into banded storage trains.
The mistake to avoid
The one to avoid at this size is under-building the foundation. A tank this tall and this heavy transfers enormous load into its base, and a pad that is undersized, unlevel, or not continuously supporting the full 119 x 119 inch footprint is the failure mode, not the tank wall. Size the pad to the loaded weight, not the empty tank, and confirm your working capacity against the 1.9 SG rating so you are not planning to store contents denser than the wall was built for.
This Norwesco vertical storage tank ships LTL freight, quoted live to your ZIP from the nearest of Hanford, CA or St. Bonifacius, MN. Get a freight quote to your ZIP in minutes with the Freight Cost Estimator, or call 866-418-1777 to confirm capacity, fitting layout, and lead time before you order.
