The Xerxes Advantage:
As communities, businesses and industries become increasingly accountable to meet LEED and other environmental requirements that require safe, design-proven storage, Xerxes is in the forefront with innovative answers. When considering the options in customized systems for water storage, facility designers and owners look for a long-term, structurally strong, watertight and cost effective solutions. That is exactly what the Xerxes fiberglass tank is.
For decades, Xerxes has been well-known as a major tank supplier to the petroleum industry, with more than 100,000 tanks installed. Many of the world’s largest oil companies rely on Xerxes to supply environmentally safe underground tanks for storage of gasoline at their retail service stations. Throughout the neighborhoods and communities of America, Xerxes underground tanks are in place, simultaneously storing products and protecting the environment.
Today Xerxes is taking its place in those same neighborhoods and communities as a major supplier of storage tanks for water — potable water, fire-protection water, irrigation water, gray water, rainwater, stormwater and emergency-supply water. Each time a Xerxes fiberglass underground water tank is delivered to a customer, the same performance standard has been met — a vessel for safe underground storage of water and careful protection of the environment.
Capacity and Dimensional Specifications:
| 4' |
600 |
602 |
4'-.5" |
6'-11.88" |
500 |
| 4' |
1,000 |
1,009 |
4'-.5" |
11'-3.88" |
700 |
| 6' |
2,000 |
2,376 |
6'-3.5" |
13'-5.75" |
1,000 |
| 6' |
3,000 |
2,973 |
6'-3.5" |
16'-4.25" |
1,200 |
| 6' |
4,000 |
4,131 |
6'-3.5" |
21'-11.13" |
1,600 |
| 6' |
5,000 |
5,064 |
6'-3.5" |
26'-5" |
1,900 |
| 6' |
6,000 |
5,960 |
6'-3.5" |
30'-8.75" |
2,200 |
| 8' |
2,000 |
2,189 |
8'-0" |
9'-.5" |
900 |
| 8' |
3,000 |
3,271 |
8'-0" |
12'-3" |
1,200 |
| 8' |
4,000 |
4,218 |
8'-0" |
15'-.5" |
1,400 |
| 8' |
5,000 |
5,165 |
8'-0" |
17'-8.5" |
1,700 |
| 8' |
6,000 |
6,084 |
8'-0" |
20'-6.5" |
2,000 |
| 8' |
8,000 |
7,950 |
8'-0" |
26'-1.5" |
2,500 |
| 8' |
10,000 |
9,816 |
8'-0" |
31'-6.5" |
3,000 |
| 8' |
12,000 |
11,682 |
8'-0" |
37'-.5" |
3,500 |
| 8' |
15,000 |
14,975 |
8'-0" |
46'-9" |
4,500 |
| 10' |
10,000 |
10,563 |
10'-4" |
21'-5.25" |
3,200 |
| 10' |
12,000 |
12,068 |
10'-4" |
24'-.25" |
3,600 |
| 10' |
15,000 |
15,248 |
10'-4" |
29'-5.75" |
4,500 |
| 10' |
20,000 |
20,055 |
10'-4" |
37'-8.75" |
5,700 |
| 10' |
25,000 |
25,783 |
10'-4" |
47'-6.75" |
7,900 |
| 10' |
30,000 |
30,590 |
10'-4" |
55'-9.75" |
9,400 |
| 10' |
35,000 |
35,397 |
10'-4" |
64'-.75" |
10,500 |
| 10' |
40,000 |
41,004 |
10'-4" |
73'-8.25" |
12,100 |
| 12' |
20,000 |
20,781 |
11'-11" |
29'-4" |
9,200 |
| 12' |
25,000 |
25,541 |
11'-11" |
35'-7" |
10,600 |
| 12' |
30,000 |
31,253 |
11'-11" |
43'-1" |
12,500 |
| 12' |
35,000 |
36,013 |
11'-11" |
49'-4" |
13,900 |
| 12' |
40,000 |
39,821 |
11'-11" |
54'-4" |
15,000 |
| 12' |
48,000 |
48,389 |
11'-11" |
65'-7" |
17,700 |
| 12' |
50,000 |
50,293 |
11'-11" |
68'-1" |
18,300 |
* If an overfill-protection device such as a ball-float or flapper valve is installed in the tank, the actual tank capacity will be reduced.
** Actual height of the tank may be greater than actual tank diameter due to fittings and accessories. Load height during shipping may vary due to tank placement on shipping trailer.
*** Adding accessories to the tank may increase the tank weight.
Fiberglass Water Tanks for Potable Water Applications:
Each Xerxes potable water tank is designed and manufactured to meet a customer’s specific requirements. A major benefit of ordering a Xerxes potable water tank is that it can be manufactured with materials that conform to the requirements of NSF® Standard 61 — Drinking Water System Components — Health Effects. A Xerxes potable water tank is also available as an NSF-listed and labeled tank.
The National Sanitation Foundation (NSF) is a leading international organization that develops standards, and tests and certifies products in the areas of public health safety and environmental protection. Xerxes potable water tanks are manufactured with a resin that has been approved as conforming to NSF standards for drinking water system components, demonstrating once again that Xerxes is a pioneer in its industry.
The process by which Xerxes manufactures potable water tanks with NSF-listed materials offers a significant advantage over steel and concrete tanks. The Xerxes fiberglass potable water tank is an integral structure incorporating an NSF-listed-resin interior with a polyester-resin-glass exterior. This is the most effective combination for a potable water tank.
LEED Credits:
Owners and designers of new construction and major renovation projects can use Xerxes fiberglass products and qualify for points under the U.S. Green Building Council’s sustainable sites and water efficiency categories of its Leadership in Energy and Environmental Design (LEED®)(1) Green Building Rating System™.
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#1: Water Efficiency Category: LEED Credits for Water Efficient Landscaping
Xerxes water tanks can easily fit into a design that qualifies for water efficiency landscaping credits under the LEED Water Efficiency category (Credit 1.1 and Credit 1.2). The intent of these LEED credits is to limit or eliminate the use of potable water, or other natural water resources, for landscape irrigation. Xerxes tanks are routinely used to collect and store captured rainwater or recycled site water, which is then used for landscape irrigation. Using rainwater and/or greywater instead of potable water is one way to reduce the use of potable water for irrigation. Using Xerxes water tanks, a system can be designed to conserve as much as 100 percent of potable water for such purposes. |
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LEED Credits for Water Efficiency (WE)
WE Credit 1.1: Water Efficient Landscaping (Reduce by 50%)
WE Credit 1.2: Water Efficient Landscaping (No Potable Water Use or No Irrigation)
Intent: Limit or eliminate (50%) or eliminate (100%) the use of potable water, or other natural surface or subsurface water resources available on or near the project site, for landscape irrigation.
Requirements for Credit 1.1: Reduce potable water consumption for irrigation by 50%from a calculated mid-summer baseline case. Reductions shall be attributed to any combination of the following items: plant species factor, irrigation efficiency, use of captured rainwater, use of recycled wastewater, use of water treated and conveyed by a public agency specifically for nonpotable uses.
Requirements for Credit 1.2: Achieve WE Credit 1.1 AND use only captured rainwater, recycled wastewater, recycled greywater, or water treated and conveyed by a public agency specifically for nonpotable uses for irrigation OR install landscaping that does not require permanent irrigation systems.
Source: U.S. Green Building Council, November, 2007 |
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#2: Water Efficiency Category: LEED Credit for Innovative Wastewater Technologies
Xerxes wastewater tanks are a natural component of systems designed to qualify for the innovative wastewater technology credit available under the LEED Water Efficiency category (Credit 2).This credit requires reducing the use of municipally provided potable water for building sewage conveyance by a minimum of 50 percent or the treatment of wastewater on site to tertiary standards. Onsite wastewater technology is an increasingly recognized commercial design concept for which Xerxes tanks have long been a critical component.The need to address wastewater management has led to the growing acceptance of onsite treatment. Xerxes wastewater tanks are used as process tanks, dosing tanks, recirculation tanks, collection tanks and holding tanks, all part of a complete wastewater treatment system in such projects as schools, commercial buildings, office complexes and housing developments. As wastewater treatment system designers develop new technologies, Xerxes tanks continue to be a part of that evolution. |
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LEED Credits for Water Efficiency (WE)
WE Credit 2: Innovative Wastewater Technologies
Intent: Reduce generation of wastewater and potable water demand, while increasing the local aquifer recharge.
Requirements:
Option-1: Reduce potable water use for building sewage conveyance by 50%through the use of water-conserving fixtures (water closets, urinals) or nonpotable water (captured rainwater, recycled greywater, and onsite ormunicipally treated wastewater).
Option-2: Treat 50% of wastewater onsite to tertiary standards. Treated water must be infiltrated or used onsite.
Source: U.S. Green Building Council, November, 2007 |
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#3: Sustainable Sites Category: LEED Credits for Stormwater Design
Environmental concerns have changed the management of stormwater runoff. When stormwater runs directly into sewer systems, it can result in either groundwater contamination or overloading of stormwater infrastructure. To address these problems, many communities now require a specific retention time before allowing stormwater to run into the drainage system. Typically, retention ponds are used to meet this requirement. As part of a stormwater management system, Xerxes underground water tanks offer a better alternative, which may also qualify for the stormwater design credits available under the LEED Sustainable Sites category (Credits 6.1 and 6.2). While meeting retention-in-time requirements, developers and property owners can also make better use of property by locating stormwater tanks in parking lots or parking areas.This is a significant benefit with the rising cost of land. (Xerxes tanks are rated for H-20 loads.) In addition, the collected stormwater can be used for nonpotable uses such as landscape irrigation. |
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LEED Category: Sustainable Sites (SS)
SS Credit 6.1 Stormwater Design: Quantity Control
Intent: Limit disruption of natural water hydrology by reducing impervious cover, increasing onsite infiltration, reducing or eliminating pollution from stormwater runoff, and eliminating contaminants.
Requirements: See LEED for New Construction Version 2.2, page 21.
SS Credit 6.2 Stormwater Design: Quality Control
Intent: Limit disruption and pollution of natural water flows by managing stormwater runoff.
Requirements: See LEED for New Construction Version 2.2, page 22.
Source: U.S. Green Building Council, November, 2007 |
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#4: Water Efficiency Category: LEED Credits for Water Use Reduction
Xerxes water tanks can be a component of many designs that would qualify for Water Use Reduction credits (3.1 and 3.2) under the LEED Water Efficiency category. Both of these credits have the same intent: to reduce the burden on municipal water supply and wastewater systems by maximizing water efficiency within buildings. Whether the aim is a 20 percent or a 30 percent reduction of water use, Xerxes water tanks can be used to collect plumbing greywater that can then be used for nonpotable applications, such as toilet and urinal flushing, mechanical systems and custodial uses. Xerxes tanks have been used for such applications in mixed-use commercial complexes throughout the United States.These applications can serve as templates for many others. |
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LEED Credits for Water Efficiency (WE)
WE Credit 3.1: Water Use Reduction (20% Reduction)
WE Credit 3.2: Water Use Reduction (30% Reduction)
Intent: Maximize water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems.
Requirements: Employ strategies that, in aggregate, use 20% (Credit 3.1) or 30% (Credit 3.2) less water than the water use baseline calculated for the building (not including irrigation) after meeting the Energy Policy Act of 1992 fixture performance requirements. Calculations are based on estimated occupant usage and shall include only the following fixtures (as applicable to the building): water closets, urinals, lavatory faucets, showers and kitchen sinks.
Source: U.S. Green Building Council, November, 2007 |
Optional Water Tank Accessories:
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A goal at Xerxes has always been to meet the challenge of a constantly changing industry by meeting the functional requirements of system designers and owners. Xerxes meets that challenge by developing and manufacturing a wide and growing range of water tank accessories such as those listed on this page.
- FRP manways (22-inch, 30-inch and 36-inch in diameter)
- FRP manway extensions (variable length)
- FRP or PVC drop/fill tubes
- FRP ladders
- Internal pump platforms
- FRP anti-vortex plates
- Flanged FRP nozzles
- Threaded FRP or steel fittings
- Large-diameter bottom sumps
- Internal baffles/Partition walls
- Hinged and lockable lids
- FRP hold-down strapsConcrete deadmen
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Guide Specifications – Single-Wall FRP Tanks for Water Use:
Short Form
The contractor shall provide a single-wall or double wall fiberglass reinforced plastic (FRP) water tank as shown on the drawings. The tank size, fittings and accessories shall be as shown on the drawings. The fiberglass water tank shall be manufactured by Xerxes Corporation.
The water tank shall be tested and installed according to the Xerxes Installation Manual and Operating Guidelines for Fiberglass Underground Storage Tanks in effect at time of installation.
Long Form
Part I: General
1.01 Quality Assurance
A. Acceptable Manufacturer: Xerxes Corporation
B. Governing Standards, as applicable:
1.Tank manufacturer shall be in the business of manufacturing tanks with materials conforming to the requirements of ANSI/AWWA D120-02 Thermosetting Fiberglass-Reinforced Plastic Tanks.
2.Tank manufacturer shall be listed by NSF under NSF/ANSI Standard 61
Drinking Water System Components – Health Effects
3.Tank manufacturer shall be in the business of manufacturing tanks to UL 1316 standards.
4.American Society for Testing and Materials (ASTM) Standards:
a.ASTM D883: Standard Terminology Related to Plastics
5.Shop Drawings
a.The manufacturer shall supply to engineer, contractor, and / or owner, a complete set of scale drawings detailing dimensions of heights, diameter, elevations to invert, pipe sizes and any other necessary details.
6.Calculations
a.The manufacturer (upon request) shall supply the engineer, contractor, and / or owner buoyancy calculations assuming a fully flooded excavation with an installed empty tank.
b.The sizing and construction of this tank shall be consistent with industry protocols and shall comply with the applicable regulations.
Part II: Products
2.01 Fiberglass Underground water storage tanks
