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Plastic Water Tanks (Underground Water Cisterns)

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Click here for Home Water Usage Requirements
Manufactured from linear polyethylene in one piece, seamless construction, our below ground cisterns feature the same rugged, ribbed design found in our septic tanks.Where applicable, NORWESCO's cisterns have been certified under ANSI/NSF Standard 61.

The 300 and 550 gallon spheres may remain in the ground when empty. These tanks include a molded-in elevated pump stand on the bottom of the tank. The ribbed tanks (600 gallon and larger) need to be kept 1/4 full at all times.
  • Suitable for potable water-resin complies with U.S. Food and Drug Administration regulation 21 CFR 177.150 (c) 3.1 and 3.2
  • Light weight for easy transport and installation.
  • Self locking covers.
  • Ideal for campgrounds, resorts, vacation homes and construction sites.
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Plastic Water Tanks (Underground Water Cisterns)
  Name Part Capacity Dimensions Ships From Price
250 Gallon Underground Water Cistern Storage Tank250 Gallon Underground Water Cistern Storage TankN-43746250 Gallon47"D x 56"HMN, OK, OH, UT$368.99
325 Gallon Underground Water Cistern Storage Tank325 Gallon Underground Water Cistern Storage Tank
Ships In 48 Hours (*Restricted)
9525-N-41321325 Gallon54"D x 51"HCA$488.99
325 Gallon Below Ground Cistern325 Gallon Below Ground CisternN-41321325 Gallon54"D x 51"HMN, OH, GA, OK, UT, NY, WA, CA$488.99
325 Gallon Underground Cistern Tank325 Gallon Underground Cistern TankA-AST-0325-1W325 Gallon54"D x 56"HIA$457.99
430 Gallon Plastic Water Storage Tank430 Gallon Plastic Water Storage TankGRAF-200200430 Gallon52"D x 62"HGA$867.99
525 Gallon Underground Cistern Tank525 Gallon Underground Cistern TankA-AST-0525-1W525 Gallon63 x 74
IA$577.99
550 Gallon Below Ground Cistern550 Gallon Below Ground CisternN-40856550 Gallon64"D x 64"HMN, OH, WA, CA, OK$798.99
Snyder 575 Gallon Low Profile Below Ground CisternSnyder 575 Gallon Low Profile Below Ground CisternSII-C2L575 Gallon88"L x 48"W x 44"HCA, AR, WV$740.00
600 Gallon Below Ground Cistern600 Gallon Below Ground CisternN-41328600 Gallon101"L x 51"W x 42"HMN, GA, UT, WA$738.99
Graf 700 Gallon Carat S Rainwater Retention CisternGraf 700 Gallon Carat S Rainwater Retention CisternGRAF-372001700 Gallon82"L x 62"W x 79"HGA$1,648.99
850 Gallon Underground Cistern Tank850 Gallon Underground Cistern TankA-AST-0850-1W850 Gallon70"L x 60"W x 60"HIA$807.99
Chem-Tainer 1000 Gallon Below Ground CisternChem-Tainer 1000 Gallon Below Ground CisternTC1000WT1000 Gallon86"L x 65"W x 68"HHI$4,597.99
Graf 1000 Gallon Carat S Rainwater Retention CisternGraf 1000 Gallon Carat S Rainwater Retention CisternGRAF-3720021000 Gallon90"L x 69"W x 87"HGA$1,868.99
1000 Gallon Underground Cistern Tank1000 Gallon Underground Cistern TankA-ACT1000-LPB1000 Gallon98"L x 111"W x 36"HIA$1,697.99
1000 Gallon Underground Cistern Tank1000 Gallon Underground Cistern TankA-ACT1000-LPG1000 Gallon98"L x 111"W x 36"HIA$1,797.99
1150 Gallon Underground Cistern Tank1150 Gallon Underground Cistern TankA-AST-1150-1W1150 Gallon101"L x 60"W x 60"HIA$1,097.99
1200 Gallon Below Ground Cistern1200 Gallon Below Ground CisternN-413291200 Gallon102"L x 60"W x 58"HMN, OH, GA, OK, UT, WA, CA, NY$1,198.99
1175 Gallon Underground Water Cistern Storage Tank1175 Gallon Underground Water Cistern Storage TankSII-444051175 Gallon127"L x 60"W x 51"HWV, AR, CA$1,071.99
RTS 1175 Gallon Complete Rainwater Harvesting System Underground CisternRTS 1175 Gallon Complete Rainwater Harvesting System Underground CisternRHA-1200UG1175 Gallon126"L x 60"W x 51"HOH$2,714.99
Chem-Tainer 1250 Gallon Below Ground CisternChem-Tainer 1250 Gallon Below Ground CisternTC1250WT1250 Gallon86"L x 76"W x 68"HHI$4,850.99
Graf 1250 Gallon Carat S Rainwater Retention CisternGraf 1250 Gallon Carat S Rainwater Retention CisternGRAF-3720031250 Gallon90"L x 78"W x 96"HGA$2,088.99
1400 Gallon Below Ground Cistern1400 Gallon Below Ground CisternN-418931400 Gallon116"L x 60"W x 66"HMN, OH, OK, UT, NY, WA, CA$1,443.99
1450 Gallon Underground Cistern Tank1450 Gallon Underground Cistern TankA-AST-1450-1W1450 Gallon118"L x 58"W x 72"HIA$1,297.99
1500 Gallon Underground Cistern Tank1500 Gallon Underground Cistern TankA-ACT1500-LPB1500 Gallon98"L x 111"W x 48"HIA$2,097.99
1500 Gallon Underground Cistern Tank1500 Gallon Underground Cistern Tank
Ships In 48 Hours
9539-A-ACT1500-LPG1500 Gallon98"L x 111"W x 48"HOK$2,197.99
1500 Gallon Underground Cistern Tank1500 Gallon Underground Cistern TankA-ACT1500-LPG1500 Gallon98"L x 111"W x 48"HIA$2,197.99
1700 Gallon Below Ground Cistern1700 Gallon Below Ground CisternN-413301700 Gallon143"L x 55"W x 66"HMN, OH, GA, OK, UT, WA, NY, CA$1,732.99
1800 Gallon NexGen Cistern Tank1800 Gallon NexGen Cistern TankSII-444071800 Gallon157"L x 69"W x 51"HAR, WV$1,693.99
Graf 1700 Gallon Carat S Rainwater Retention CisternGraf 1700 Gallon Carat S Rainwater Retention CisternGRAF-3720041700 Gallon94"L x 86"W x 107"HGA$2,638.99
Ace Roto Mold 1700 Gallon Cistern TankAce Roto Mold 1700 Gallon Cistern TankA-AST-1700-1W1700 Gallon137"L x 58"W x 72"HIA$1,797.99
2000 Gallon Below Ground Water Holding Tank Cistern2000 Gallon Below Ground Water Holding Tank CisternN-425592000 Gallon126"L x 98"W x 53"HWA, MN, OH, OK$2,455.99
2000 Gallon Underground Cistern Tank2000 Gallon Underground Cistern TankA-ACT2000-LPB2000 Gallon98"L x 158"W x 45"HIA$2,597.99
2000 Gallon Underground Cistern Tank2000 Gallon Underground Cistern TankA-ACT2000-LPG2000 Gallon98"L x 158"W x 45"HIA$2,697.99
2500 Gallon Below Ground Holding Tank2500 Gallon Below Ground Holding TankN-440792500 Gallon159"L x 99"W x 51"HMN, OK, CA$3,049.99
2500 Gallon Underground Cistern Tank2500 Gallon Underground Cistern TankA-ACT2500-LPB2500 Gallon158"L x 98"W x 54"HIA$2,997.99
2500 Gallon Underground Cistern Tank2500 Gallon Underground Cistern TankA-ACT2500-LPG2500 Gallon158"L x 98"W x 54"HIA$3,097.99
2600 Gallon Underground Water Cistern Storage Tank2600 Gallon Underground Water Cistern Storage TankN-437702600 Gallon155"L x 98"W x 51"HMN$3,210.99
Graf 2650 Gallon Carat XL Rainwater Retention CisternGraf 2650 Gallon Carat XL Rainwater Retention CisternGRAF-3720062650 Gallon139"L x 88"W x 114"HGA$4,838.99
5025 Gallon Underground Holding Tank5025 Gallon Underground Holding TankN-448765025 Gallon211"L x 102"W x 73"HTX, MN, UT$7,279.99
10000 Gallon Fiberglass Non Potable Underground Water Tank10000 Gallon Fiberglass Non Potable Underground Water TankNTP-8-28NP10000 Gallon96"D x 336"LCall For Price
10000 Gallon NSF Grade Fiberglass Water Tank10000 Gallon NSF Grade Fiberglass Water TankNTP-8-28NSF10000 Gallon96"D x 336"LCall For Price
10000 Gallon Fiberglass Potable Water Tank10000 Gallon Fiberglass Potable Water TankNTP-8-28POT10000 Gallon96"D x 336"LCall For Price
10000 Gallon Fiberglass Non Potable Underground Water Tank10000 Gallon Fiberglass Non Potable Underground Water TankNTP-10-19NP10000 Gallon120"D x 228"LCall For Price
10000 Gallon NSF Grade Fiberglass Water Tank10000 Gallon NSF Grade Fiberglass Water TankNTP-10-19NSF10000 Gallon120"D x 228"LCall For Price
10000 Gallon Fiberglass Potable Water Tank10000 Gallon Fiberglass Potable Water TankNTP-10-19POT10000 Gallon120"D x 228"LCall For Price
10000 Gallon Fiberglass Non Potable Underground Water Tank10000 Gallon Fiberglass Non Potable Underground Water TankNTP-12-15NP10000 Gallon144"D x 180"LCall For Price
10000 Gallon NSF Grade Fiberglass Water Tank10000 Gallon NSF Grade Fiberglass Water TankNTP-12-15NSF10000 Gallon144"D x 180"LCall For Price
10000 Gallon Fiberglass Potable Water Tank10000 Gallon Fiberglass Potable Water TankNTP-12-15POT10000 Gallon144"D x 180"LCall For Price
25000 Gallon Fiberglass Non Potable Underground Water Tank25000 Gallon Fiberglass Non Potable Underground Water TankNTP-10-45NP25000 Gallon120"D x 540"LTXCall For Price
25000 Gallon NSF Grade Fiberglass Water Tank25000 Gallon NSF Grade Fiberglass Water TankNTP-10-45NSF25000 Gallon120"D x 540"LTXCall For Price
25000 Gallon Fiberglass Potable Water Tank25000 Gallon Fiberglass Potable Water TankNTP-10-45POT25000 Gallon120"D x 540"LTXCall For Price
40000 Gallon Fiberglass Non Potable Underground Water Tank40000 Gallon Fiberglass Non Potable Underground Water TankNTP-12-50NP40000 Gallon144"D x 600"LCall For Price
40000 Gallon NSF Grade Fiberglass Water Tank40000 Gallon NSF Grade Fiberglass Water TankNTP-12-50NSF40000 Gallon144"D x 600"LCall For Price
40000 Gallon Fiberglass Potable Water Tank40000 Gallon Fiberglass Potable Water TankNTP-12-50POT40000 Gallon144"D x 600"LCall For Price