EnviroBox Storage Systems · Manufactured by Municipal Tank Works, LLC
EnviroBox. Permanent Storage.
EnviroBox Storage Systems — shop-welded rectangular steel tanks manufactured by Municipal Tank Works, LLC in Canton, Ohio. Three product lines, every application. Shop-welded, code compliant, and built to last 25 years. Own it outright — or ask about our rent-to-own program.
SHOP-WELDED IN CANTON, OHIO◆NFPA 22 · NSF 61 · FM GLOBAL◆PE STAMPED — ALL 50 STATES◆5,000 – 3,000,000+ GALLON CAPACITY◆OWN IT — OR RENT TO OWN◆QUOTE IN 48 HOURS◆STACKABLE 2× OR 3× SAME FOOTPRINT◆25-YEAR SERVICE LIFE◆NATIONWIDE FLATBED DELIVERY◆SHOP-WELDED IN CANTON, OHIO◆NFPA 22 · NSF 61 · FM GLOBAL◆PE STAMPED — ALL 50 STATES◆5,000 – 3,000,000+ GALLON CAPACITY◆OWN IT — OR RENT TO OWN◆QUOTE IN 48 HOURS◆STACKABLE 2× OR 3× SAME FOOTPRINT◆25-YEAR SERVICE LIFE◆NATIONWIDE FLATBED DELIVERY◆
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EnviroBox — Own It, Don't Rent It
Rental fees stack up month after month with nothing to show for it. A Municipal Tank Works tank is a capital asset — it holds resale value and its total cost of ownership beats extended rental within 18–24 months. Need temporary capacity first? We offer rental on our own tanks by request — same shop-welded quality, no surprises. Rental payments can count toward purchase.
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EnviroBox — Built to Your Exact Spec
Our tanks come in any dimension, any lining, any nozzle layout — configured to your exact process, your site, and your standards. Not an off-the-shelf guess. No adapters. No workarounds.
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EnviroBox — 25-Year Service Life
Our shop-welded tanks are built for permanent installation with a 25-year minimum service life and full corrosion protection from day one. Not temporary duty equipment — a capital asset engineered for the long haul.
Product Lines
EnviroBox Product Lines. Every Application.
General industrial storage, mission-critical data center supply, and NFPA 22 fire suppression — three purpose-built product lines, all manufactured by Municipal Tank Works, LLC in Canton, Ohio.
General Industrial Storage
EnviroBoxStorage Systems
The flagship EnviroBox line — single units to gravity-manifolded multi-unit systems. Every liquid, every industry, any site. Full custom configuration — any dimension, any lining, any nozzle layout — with Ohio-built quality and a 25-year service life.
Oil & GasAgricultureStormwaterIndustrialMunicipal
5K+
Gallons single
3M+
Gallons multi-unit
Mission-Critical Data Centers
DataFlowWater Storage Systems
N+1 redundant cooling water and fire suppression reserve tanks for Tier II–IV data centers. NSF 61 lined, SCADA-integrated, and FM Global approved. Zero tolerance for supply interruption.
HyperscaleColocationEnterprise DCEdge / NOC
N+1
Redundancy
NFPA 22
FM approved
Fire Suppression Storage
FireWaterFire Protection Systems
Complete NFPA 22 fire water storage with integrated pump house — tank, pumps, UL-listed controller, test header, and piping factory-assembled and flow-tested. Set it, connect it, done.
NFPA 13/22IndustrialPetrochemicalDoD / Federal
UL Listed
Fire pumps
AHJ Ready
PE stamped
Standard Models
Off-the-Shelf. Ready to Quote.
Four standard configurations — 8 ft wide, 8 ft tall. Complete with structural rib grid, solid roof plate, I-beam skid, ladder with elbow transition, OSHA guardrail, manway, and vent. Custom sizes available on request.
8×20×8ft
Standard 20 ft
Capacity~9,600 gal
Width8 ft
Length20 ft
Height8 ft
Shell3/16″ carbon steel
StackableSkid Mounted
8×30×8ft
Standard 30 ft
Capacity~14,400 gal
Width8 ft
Length30 ft
Height8 ft
Shell3/16″ carbon steel
StackableSkid Mounted
8×40×8ft
Standard 40 ft
Capacity~19,200 gal
Width8 ft
Length40 ft
Height8 ft
Shell1/4″ carbon steel
StackableSkid Mounted
8×50×8ft
Standard 50 ft
Capacity~24,000 gal
Width8 ft
Length50 ft
Height8 ft
Shell1/4″ carbon steel
StackableSkid Mounted
Construction
How EnviroBox Tanks Are Built.
Every EnviroBox tank — EnviroBox, DataFlow, and FireWater lines — is built on the same proven structural platform at our Canton, Ohio facility. Not assembled in the field. Not adapted from a trailer. Shop-welded, blast-cleaned, primed, and coated before it leaves our door.
01
Solid Shop-Welded Body
All six faces fully welded in our shop — closed, solid, no field seams. Carbon steel plate sized to your volume and pressure requirements.
02
Full-Height Structural Rib Grid
Deep structural channel ribs on all vertical faces carry the full hydrostatic load. No thin-wall construction — ribs run full height and connect at every horizontal band.
03
Solid Walkable Roof Plate
A genuine flat steel plate — not a shell, not a lid. Thick enough to walk on safely. Manway, vent, and accessories bolt directly to it.
04
Heavy I-Beam Skid Base
Three longitudinal I-beam runners with cross-member tie bars. Sets directly on a grade pad — no concrete foundation required.
05
Ladder with Elbow Transition
Fixed vertical ladder from grade to roof. Quarter-arc elbow at the top transitions rails from vertical to horizontal — continuous handhold as you step onto the roof deck.
06
OSHA Guardrail — Opening at Ladder
Orange OSHA-compliant rail with toe plate on all four sides. Deliberate gap at the ladder side lets personnel step off cleanly — not an afterthought, an engineered feature.
Vertical Stacking
2× or 3× Volume. Same Footprint.
No other tank on the market stacks like EnviroBox. Upper unit skid welds directly to lower unit roof plate — zero gap, one continuous vessel. Available across all three product lines.
01
Flush Weld Connection
Upper skid welds directly to lower roof plate. No saddle frame, no gap. A dark seam band and weld highlights mark the joint — structurally and visually one vessel.
02
One Ladder, Full Height
A single ladder runs from grade to the top unit's roof — rails, rungs, elbow transition, and handrail extensions in one continuous run up the entire stack.
03
Common Riser & Single Connection
External riser equalizes all chambers. Fill, vent, and outlet piping run as one integrated circuit — one connection point to your process or pump station.
04
No Civil Work Required
Same grade pad as a single unit. No new concrete, no new footprint. Stack a second or third unit as your capacity needs grow.
Construction Sequence
Shop-Welded Modular Tank. Built in Stages.
Interactive 3D animation — watch a 53′ × 8′-6″ × 24′ modular tank go from flatbed delivery to fully assembled, course by course.
Three courses of externally braced steel panels, crane-set one at a time onto a gravel pad. Each course bolts to the one below — deck, rails, and ladder installed last. Watch the full sequence on loop.
Completed 3-course tank — site photo
53′-0″
Length
8′-6″
Width
24′-0″
Height
3
Courses
Drag to orbit · Scroll to zoom · Auto-playing construction sequence
Modular Scale-Out
Add Capacity. Just Add a Tank.
4 × 40-foot EnviroBox vessels on a shared base manifold.
Four identical 40-foot EnviroBox units, manifolded at the base. Inflow enters the bottom of the lead tank at one end of the row and exits the bottom of the trailing tank at the opposite end — every additional tank adds capacity without re-engineering the system.
drag to orbit · scroll to zoom
Phase 01
Bottom Inlet
Process water enters the bottom of the first tank through the base manifold — fed from a pump, well, or upstream header.
Phase 02
Manifold Equalize
The shared base manifold carries water tank-by-tank down the row. All four vessels rise to a common level — no pumps, no valves.
Phase 03
Bottom Outlet
At steady state, water discharges from the bottom of the far tank at the opposite end. Add a fifth, sixth, or nth unit on the same manifold to grow with demand.
Options & Accessories
Every Option. Factory-Installed.
No field add-ons. No retrofits. Every option is designed, installed, and tested in the shop before your tank ships.
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Manways
20" or 24" bolted roof manways with davit lifting arm for confined-space inspection access.
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Interior Linings
NSF 61 epoxy for potable water, polyurea or rubber for chemicals, HDPE-lined for aggressive hydrocarbons.
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Level & SCADA
Ultrasonic sensors, float gauges, 4-20mA / Modbus RTU/TCP outputs, full SCADA and BMS integration.
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Auto-Fill
Float or solenoid fill valve, high/low level alarms wired to your control panel or fire alarm system.
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Insulation & Heat Trace
Spray-foam with aluminum jacketing and self-regulating heat trace for freeze protection in cold climates.
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Nozzles
2"–12"+ flanged nozzles in any position and quantity — inlet, outlet, drain, overflow, sample, instrument.
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Integrated Pump House
Heated, insulated steel enclosure with fire pump, jockey pump, UL-listed controller, and test header — standard on FireWater.
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Finish & Color
Blast-clean, prime, and topcoat in any RAL or custom color. UV-stable, high-build, chemical-resistant exterior.
Beyond Storage
Complete Treatment Systems. Or a Single Stage to Fix Yours.
EnviroBox tanks aren't just storage. The same shop-welded platform powers complete treatment trains — equalization, MBBR biology, clarification, and discharge — or drops in as a single engineered stage to solve a specific problem in an existing system.
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Plug Into Your Existing System
You don't need to replace your whole plant. A single EnviroBox stage can solve a specific bottleneck — add an EQ tank upstream to buffer high-strength batch loads before they upset your biology, retrofit an MBBR into an overloaded aerobic zone to multiply biological capacity, or drop in a final polishing tank before permit discharge. Same shop-welded platform, same nozzle coordination, same 25-year service life.
Example
A food processor taking in high-strength feedstock during peak season adds an EnviroBox EQ tank at the headworks. Diurnal BOD spikes that previously crashed the downstream aerobic stage are absorbed before they reach biology — chemical dosing drops, effluent compliance stabilizes, and the existing plant runs at design without modification.
Stage 01
EQ Pretreatment
Smooth Out the Flow. Protect the Plant.
Shop-welded equalization tanks buffer diurnal surges, wet-weather events, batch dumps, and sanitation discharges before they reach downstream biology or chemistry. Consistent influent is the single biggest lever on plant performance — and the EnviroBox EQ delivers it in a permanent capital asset, not a rental.
8:1
Flow variation dampened
±10%
Loading smoothed to within
4–8 hr
Hydraulic retention
Top-mounted mixer keeps solids in suspension
Full nozzle package — inlet, outlet, overflow, drain, sample
Level control with hi/lo alarms to downstream pumps
Any interior lining — NSF 61 epoxy, polyurea, HDPE, rubber
Moving bed biofilm reactors delivered as finished hardware — tank, stainless aeration grid, retention screens, and air header all shop-installed. Drop into an overloaded aerobic zone to multiply biological capacity, or run standalone as a side-stream reactor upstream of your main plant. No sludge recycle, no MLSS control, no clarifier-return loops.
>90%
BOD reduction
>85%
NH₃-N reduction
≤67%
Media fill capacity
Retrofit into existing aerobic zone or standalone side-stream
Stainless aeration grid sized to your BOD & oxygen-transfer demand
Retention screens matched to K1, K3, K5, chip, or web media
Media-fill port — no confined-space entry needed
Shock-load tolerant: protected biofilm rides out spikes that crash activated sludge
Blower package, air piping, and instrumentation matched at the shop
Four shop-welded stages — equalization, MBBR biology, clarification, and final tank — engineered together as one system. Nozzle positions, tank elevations, and piping interfaces are coordinated stage-to-stage in our shop, not guessed at in the field. One manufacturer, one warranty, one number to call.
01
EQ
Buffers peak flows & pollutant spikes
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02
MBBR
Removes BOD & ammonia via moving biofilm
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03
Clarifier
Settles biomass; launders polished effluent
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04
Discharge
Permit discharge or on-site reuse
One quality spec across every vessel — same rib grid, same steel, same blast-prime-coat
Nozzle positions & elevations coordinated stage-to-stage in the shop
5K–3M+ gallons per stage, stackable on same footprint
NSF 61 · PE Stamped all 50 states · OSHA access · AHJ ready
Single point of accountability — no finger-pointing between vendors
Tell us your influent characteristics, flow rate, and permit requirements. We'll size the right stage or full train and turn around a quote in 48 hours.
Explore the complete treatment train in cinematic 3D — six modular tanks with gravity-feed piping, staged MBBR biology, integrated clarification, and final polishing. Play the animated flyover or record a 1:1 MP4.
6
Tanks Side-by-Side
8′ × 32′ × 50′
Per-Tank Dimensions
3
MBBR Stages (Series)
Gravity
Feed Connections
20 s
Animated Flyover
Cinematic flyover plays on loop · Record to export a 1920×1080 MP4
Standards & Approvals
Meeting Every Standard That Matters.
NFPA 22
Fire Water Storage
All FireWater and DataFlow fire reserve tanks designed to NFPA 22 for permanent fire suppression applications. Listed, permitted, and AHJ accepted.
FM Global
Property & Risk
FM Global approved configurations for insured facilities — coordinated with your FM data sheet and loss prevention program.
NSF 61
Potable Water
Certified interior linings for potable water contact. NSF 61 listed — suitable for drinking water and food-grade storage applications.
PE Stamp
All 50 States
Professional Engineer stamped drawings and structural calculations for building permit and AHJ submittal in all 50 states.
Industries Served
EnviroBox Serves Every Industry.
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Oil & Gas
Produced water, crude staging, brine, and chemical injection. API 650-compatible. Owned outright — no monthly rental. EnviroBox.
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Data Centers
Cooling water makeup, fire suppression reserve for Tier II–IV facilities. SCADA-integrated, N+1 redundant. DataFlow.
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Fire Suppression
NFPA 22 fire water reserve with integrated pump house — fully listed, PE-stamped, and AHJ accepted for permanent fire suppression. FireWater.
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Agriculture
Fertilizer, herbicide, and irrigation water. Chemical-compatible linings. No rental clock running during the off-season. EnviroBox.
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Industrial Process
Day tanks, surge tanks, blending vessels, and bulk storage for chemical and manufacturing. Built to your P&ID. EnviroBox.
Foam-water systems, deluge reserves, and large-volume fire water for tank farms and process units. FireWater.
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Construction & Mining
Fuel, tailings water, and dewatering — owned, not rented. No rental fees eating into project margins. EnviroBox.
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Military & Government
DoD and federal storage meeting UFC, NFPA, and force protection requirements. PE stamped. AHJ accepted. FireWater / EnviroBox.
From the Field
What Our Customers Say.
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We were paying over $5,000 a month in rental costs for produced water storage. Two EnviroBox units covered the same volume, we own them outright, and we broke even in under 20 months. Should've done it sooner.
Operations Manager
Midcontinent E&P Operator · Oklahoma
EnviroBox · Produced Water
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Our AHJ required NFPA 22 compliance for the fire water tank — MTW came back with a fully compliant FireWater unit, PE-stamped drawings, and delivery in eight weeks. Every other vendor we contacted couldn't meet the standard. Exactly what we needed.
Fire Protection Engineer
Industrial Facility · Southeast
FireWater · NFPA 22
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The approval drawing process was fast and thorough. We specified our nozzle layout, lining, and color on Monday. We had drawings in our hands by Wednesday. Nothing went to the shop floor until we signed off. That's how it should work.
Plant Engineer
Chemical Processing · Ohio
EnviroBox · Chemical Storage
Build Quality
See the Welds. See the Work.
Engineers want to see construction quality, not just read about it. Here's what leaves our Canton, Ohio shop.
Scroll to see more →
Side Profile — Full Rib GridDeep channel ribs full-height on all faces, shop-welded carbon steel
Front Face & NozzleFlanged inlet nozzle with full structural rib grid, shop finish
Paint & Weld QualityHigh-build industrial topcoat — blast-cleaned, primed, and coated before delivery
Manway AccessBolted manway with davit arm for confined-space inspection access
Flanged NozzleCustom nozzle position — installed and pressure-tested in the shop
Ladder & Access HardwareFactory-installed access hardware, bolted and ready for deployment
40 ft EnviroBox — Shop FloorFull-length view inside the Canton, Ohio facility before delivery
Field InstallationEnviroBox units set on prepared pad — connected and operational on-site
Jet Mixing for EQ BlendingSkid-mounted jet mixing pump and motor — keeps EQ tank contents blended without aeration
Interior Rib BracingInside view — full structural rib pattern and shop-applied interior coating
Cross-Strut InteriorTop-edge struts and lined interior — built for chemical service and longevity
Two 40 ft Units — Ready for DeliverySide-by-side on the yard — shop-welded, coated, and staged for flatbed
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8–12 weeks
Standard lead time from approved GA drawing to delivery
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48 hr
Quote turnaround from your specs to a detailed proposal
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48 states
Nationwide delivery — flatbed from Canton, Ohio to your site
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2 days
GA drawing issued within 48 hours of quote acceptance
EnviroBox Storage Systems
Get a Quote in 48 Hours.
Tell us what you need to store. We'll configure the right tank, provide a GA drawing, and deliver a detailed quote within 48 hours — no obligation.
