The Norwesco 1500 Gallon One Compartment Septic Tank ships with two manholes and carries IAPMO certification, which makes it a practical choice for residential septic systems where a single-chamber design meets your code requirements. This yellow polyethylene tank measures 135 inches long, 55 inches wide, and 70 inches tall, with a 55.0 x 135.0 inch footprint. Confirm those numbers against your excavation plan before the truck arrives, and remember the 70 inch height drives a deep dig once you add bedding below and cover above. The single-compartment layout keeps the design straightforward; if your installer or local authority calls for separated chambers, read single compartment vs two compartment septic tanks before you commit. The yellow color is Norwesco's standard for this septic model and has no effect on a buried tank's performance.
Will it work for your install
At 1500 gallons, this tank suits a range of household septic loads, and the two manholes provide access for service and inspection. Empty, the tank is manageable to place, but plan for the loaded condition: filled to capacity the tank and its contents weigh roughly 12,510 pounds, so your bedding, backfill, and anti-flotation provisions need to account for that figure. Use the Tank Sizing Calculator and the Tank Sizing Guide to match the 1500 gallon capacity to your daily flow and drainfield design. For inlet and outlet positions and manhole placement, refer to the technical drawing on this page and stage your dig to those dimensions; match any riser or adapter components you order to the dimensions shown on that drawing rather than assuming a standard size.
IAPMO certification and the cross-border question
This is a Norwesco septic tank carrying IAPMO certification, and septic approvals are jurisdiction-specific. Before you order, verify that IAPMO certification satisfies your local plumbing code and your county health department's accepted-tank list, and confirm acceptance against the IAPMO listing for this specific model while the tank is still at the plant. Returns on a 1,500 gallon LTL tank are punitive, so this is the one check worth making first. If you are installing in Canada or near the border, the scope of approval differs from U.S. plumbing codes; the details are worth reading in Norwesco IAPMO and CSA B66 Septic Tank Approvals. The common mistake is assuming a certified tank is automatically approved everywhere; confirm with your inspector first.
Freight
This Norwesco 1500 gallon septic tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant. Norwesco produces this tank across seven locations, so freight is figured from the closest one to you, which may be Griffin, GA, Lancaster, OH, Owego, NY, Shawnee, OK, St. Bonifacius, MN, Tooele, UT, or Washougal, WA. That spread means most ZIPs fall within one freight zone of a plant, which helps keep the quote tight. Because this is a large-tank LTL shipment, get an exact number before you buy using the Freight Cost Estimator, or call us at 866-418-1777 and we will walk you through delivery, offload, and lead time.
