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Reliable, Long-Lasting Below-Ground Tanks for Every Industry
At FRP Mocoat Fiberglass Ltd, we specialize in designing and manufacturing below-ground tanks built to withstand Washington’s diverse environmental conditions, industry requirements, and regulatory demands. Whether you’re managing water infrastructure for a municipality, storing chemicals for an industrial facility, or implementing a septic system for agricultural use, our engineered below-ground tanks in Washington deliver performance, durability, and compliance.
Our tanks are constructed using advanced fiberglass-reinforced plastic (FRP) and optional precast components, offering long service life, corrosion resistance, and minimal maintenance over time. We don’t just build tanks – we solve complex infrastructure challenges with purpose-built underground solutions.
Why Choose FRP Mocoat?
With decades of industry experience, FRP Mocoat Fiberglass Ltd has earned a reputation for engineering excellence and product reliability. Our below-ground tanks are tailored to the needs of Washington’s municipalities, industrial operations, agricultural clients, and engineering firms.
Our advantages:
- Made for the Pacific Northwest, our tanks are engineered to withstand the wet, cold winters and varying soil conditions across Washington.
- Expert Design & Engineering: Every tank is custom-designed to meet application-specific needs and loading requirements.
- Compliance You Can Count On: Our solutions meet CSA, NSF, and other relevant industry standards.
Custom Designs for Complex Installations
- Widths ranging from 2’x2’ to 4’x6’
- Depths from 2 to 6 feet, with other options available upon request
- Custom mousehole cutouts to accommodate multiple pipe configurations
- Open-bottom designs for placement over valves or existing components
- Traffic-rated variants for high-load areas, such as road crossings or heavy-use industrial sites
These tanks are engineered for containment and integration into real-world systems with minimal disruption and maximum efficiency.
Advanced Materials for Long-Term Durability
Our below-ground tanks in Washington are built using fiberglass-reinforced plastic (FRP) – a material known for its superior resistance to corrosion, moisture, and environmental stress. Unlike traditional materials like concrete or steel, FRP will not rust, degrade, or crack under typical underground conditions.
Structural strength highlights:
- HS20 Load Rating Available: Designed to withstand the weight of 18-wheel transport trucks and other heavy vehicles.
- Steel-Reinforced Frames: Valve boxes for high-traffic areas include welded steel tube frames encased in FRP for added load capacity.
- Seamless Construction: Reduces potential points of failure and improves longevity.
These design choices ensure that your below-ground tanks perform consistently – even under harsh conditions like freeze-thaw cycles, road salt exposure, or acidic soils.
Efficient Transport and Easy Installation
All FRP Mocoat below-ground tanks are designed with installation and logistics in mind. We know that on-site work is expensive and time-sensitive, so our products arrive ready to install.
Key benefits:
- Palletized Delivery: Tanks and valve boxes are securely packaged for easy unloading and minimal handling.
- Modular Construction: Fits easily into pre-prepared excavations with minimal adjustments.
- Lighter Than Concrete: Easier to move and position with standard equipment, saving both time and labor costs.
Whether you’re working in a remote area or on a tight schedule, FRP Mocoat helps simplify deployment with smart design.
Use Cases Across Washington State
From urban installations in Seattle to agricultural systems in Yakima or Spokane Valley, our below-ground tanks in Washington serve a wide range of applications:
Municipal:
- Water meter vaults
- Wastewater collection tanks
- Underground valve boxes
- Process water containment
- Chemical storage
- Access chambers for underground piping systems
- Septic and wastewater holding tanks
- Livestock watering systems
- Rainwater harvesting and irrigation storage
Case Example
One project required us to design a valve box located in a high-traffic zone. This unit had to be buried below ground while supporting HS20-rated traffic loads. Our engineers developed a reinforced design using a steel frame with fiberglass cladding, capable of withstanding the impact of 18-wheeler trucks. The final product was easy to install, maintenance-free, and met all load requirements.
Certified and Compliant Solutions
Compliance isn’t optional – it’s essential. Our below-ground tanks meet stringent North American safety and environmental standards.
Certifications:
- CSA & NSF Compliance: Ideal for potable water and wastewater systems
- Local Code Adherence: Custom-engineered to meet Washington State and municipal regulations
- Environmental Protection: Leak-resistant and suitable for protected watersheds or sensitive areas
We work closely with project engineers and municipal authorities to ensure every system is approved and permitted without delay.
Benefits of Below-Ground Tanks in Washington
Washington’s varied climate and terrain demand high-performing underground infrastructure. Our below-ground tanks are designed to outperform traditional systems.
Key advantages:
- Space Efficiency: No above-ground footprint, freeing up space for other uses
- Weather Protection: Tanks are insulated from freeze-thaw cycles, UV exposure, and wind
- Environmental Safety: Prevent contamination of surface water and reduce the risk of spills
- Reduced Vandalism Risk: Underground systems are less vulnerable to tampering
In a state where environmental stewardship and long-term planning are top priorities, below-ground tanks in Washington provide a smart, sustainable solution.
Ready to Upgrade Your Underground Storage System?
If you’re planning a municipal upgrade, designing an industrial system, or improving your agricultural infrastructure, trust FRP Mocoat Fiberglass Ltd to deliver below-ground tanks in Washington that meet your needs.
We combine expert engineering, industry-grade materials, and client-focused service to provide long-lasting storage and containment systems for any underground application.
