Rain Water Harvesting Tanks


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Shop Built Galvanized Steel Tanks w/NSF Coating

Shop Built Corrugated Galvanized Steel Tanks
with "NSF" Approved Coating & Liners

Potable Domestic Water Supply                                    
Private and public water systems, campgrounds and resorts use NSF approved coated tanks for potable water storage applications.  NSF coated tanks meet all Federal & State standards for storage of safe drinking water.

Fire Protection Reserve Water Storage
Many county and state fire departments recommend steel tanks as economical alternatives to bolted or welded water tanks for fire protection storage.
Installation and Safety                                                                                     
Set on a contained gravel foundation ring makes installations easy and affordable. If anchoring to a concrete foundation is required or requested, American Tank Co. will provide a foundation design and submittal drawings with a California Civil Engineers wet stamp for building permits or customer approval.

 Warranty & Savings
Shop Built Corrugated tanks are backed by a one year manufacturer's warranty.  Tanks are engineered and manufactured from corrugated hot dipped mill galvanized steel.  These tanks are extremely cost effective when compared to bolted or welded steel tanks.

Irrigation Water Storage
Farms and ranches throughout the west rely on ATC tanks to maximize the efficiency of water well production and to control distribution and pumping cycles.

Shop Built Corrugated tanks are typically specified for storage requirements between2,500 to 15,000 gallon capacities.

Placed on Site
Knuckle Crane delivery truck can set tank directly on the gravel or concrete pad for easy and trouble free installation. (Some restrictions apply ask your sales rep for details)

National Sanitation Foundation is an organization that certifies products that contact potable drinking water. This certification insures that only the absolute safest non toxic materials are used in the interior coating of our tanks.  NSF certification meets or exceeds all Federal and State requirements.

Corrugated galvanized steel tanks have been manufactured in California for over 100 years.  The normal service life is 25-30 years based on historical observations.  With periodic maintenance, ATC tanks can provide 30 to 50 years of qualified service.

- Riveted Joint Design per A.I.S.C.                                  
- Deck Supports and Live Loads per U.B.C.                 
- Prime Galvanized Steel per ASTM A527                    
Seam Sealant                                                            
- NSF Approved Urethane Polymer                              
Interior Tank Coating                                                  
- NSF Approved Polyurethane Elastomeric Coating on tank wall only. Inside roof coating   available at additional charge (20 day minimum cure time required)

Accessories Available
- Threaded (FNPT) Flanges  

- 150# Steel Flanges     
- Liquid Level Indicators
- Ladders- Side Shell Manways
 - Vents
- Gravel Rings
 - Seismic Anchors




G-90 Prime Hot dipped galvanized carbon steel (1.25 oz. zinc/sq. ft.) ASTM A-527 Corrugations-2/3" pitch (o.c.) by 2/3" depth. Solid steel galvanized Tinners rivets (3/16" - 1/4" o.d.) ASTM-A525
RIVETS: EPA accepted, FDA approved Urethane Polymer.

Interior and Exterior bottom - Ceramic bitumastic butylene emulsion (standard) Exterior seams - Aluminum based paint. Other coating systems available.

Joint design per A.I.S.C. Tanks over 5,000 gallons may be seismically designed per section 12 of AWWA D-103-87 or 1991 UBC chapter 23.

Depending on size and job location, certain tanks may require anchoring to concrete foundations. Tanks under 5,000 gallons are exempt from UBC regulations.



Published tank prices assume tank site is accessible by standard flat-bed truck or 4-Wheel drive pick-up and flat-bed trailer.


Additional charges may be required for hand carrying of materials and equipment if vehicle access is not permissible.


ENGINEERING: Allow 2-3 weeks for preparation of submittal.

Allow 10-12* weeks from date of order (or approval) for delivery of materials to job site. * Subject to change based on current backlog.

Allow 5-10 working days for completion of tank erection depending on weather and access conditions.

SHIPPING & HANDLING: Please ask your sales representative for shipping & handling quote.

(Inlets, Outlets, Overflow, & Control Ports):

FNPT Female Flanges: 1/2" thru 6"
125# NPT Companion Flanges: 1" thru 8"
150# RFSO Companion Flanges: 3" thru 12"

We manufacture or supply the following typical tank appurtenances: Gravel containment rings, Liquid level indicators, Sight gauges, Tank ladders, Tank vents, Hinged deck manways, Shell manways, Seismic anchors, Float valves, Gate valves, Fire department adapters, Fire protection equipment, Hydrants, etc. See Accessory Price List for more information.

Price List does not include grading, foundations, tank appurtenances, applicable freight charges, hard access fees or State and Local Sales Taxes. Building permits if required, shall be obtained by owner or owners agent.

The following is a list of recently installed Corrugated Galvanized Water Storage Tanks*:




Mendocino Middle School Mendocino, CA 60,000 Gal.
USDA Forest Service Bass Lake Camp, CA 20,800 Gal.
Table Mountain Rancheria Friant, CA 67,900 Gal.
Santa Clara Parks and Rec. Morgan Hill, CA 10,000 Gal.
Cedar Smoke School Truckee, CA 101,350 Gal
Catholic Youth Organization Occidental, CA 101,350 Gal.
USDA Forest Service Oakhurst, CA 10,000 Gal.
Hidden Valley Foodmart Middletown, CA 31,000 Gal.
Silver Oak Cellars Geyserville, CA 30,500 Gal.
MCI Telecommunications Hayward, CA 22,750 Gal.
Thompson Orchard Hood River, CA 31,000 Gal.
Mission Springs Conference Center Scotts Valley, CA 67,900 Gal.
Agri-Cell, Inc. Delano, CA 15,000 Gal.
Agri-Cell, Inc. Delano, CA 10,000 Gal.
Bennett Ridge Mutual Water Company Santa Rosa, CA 51,000 Gal.
Grass Valley Assembly of God Grass Valley, CA 2 - 12,000 Gal.
Diamond Arrow Conference Center Nevada City, CA 67,900 Gal.
Sequoia Construction Whitehorn, CA 10,000 Gal.
Medite Corporation Medford, CA 10,650 Gal.
Kendall Jackson Winery Geyserville, CA 12,000 Gal.
Verde River R.R. Depot Clarksdale, CA 10,000 Gal.
Eagle Ridge Subdivision Show Low, CA 53,500 Gal.
City of Depoe Bay Depoe Bay, CA 10,000 Gal.

*Customer referrals available upon request only.

Important Customer Notice:
Foundation Requirements For Field Erected Storage Tanks

When installing your Gravel Ring Foundation, it is mandatory
ONLY 3/4" Crushed Rock be used. Do Not
Use Pea Gravel.

Failure to use 3/4" Crushed rock in your tanks foundation, will
result in time delays and additional labor charges
while our erection crew waits onsite for the proper rock to be

Thank you,

American Tank Company, Inc.

Water Ready Emergency Preparedness Ozone Water Treatment