Norwesco® below-ground water cisterns feature the same rugged, ribbed design found in our Legacy septic tanks and are lightweight for ease of transport and installation. Our cisterns are ideal for instances when drinking water must be hauled in or if a well does not meet consumption needs. Norwesco cisterns are manufactured using resins that meet FDA specifications to ensure safe storage of potable water. Where applicable, Norwesco's cisterns have been certified under ANSI/NSF Standard 61.