Steel Tanks for Municipal Water, Wastewater, and Infrastructure
Cities, towns, water districts, and utilities depend on steel storage tanks for every stage of the water cycle — from raw water intake through treatment, distribution, fire protection, and wastewater processing. Municipal tank projects carry unique requirements: public bid compliance, multi-agency permitting, long design lives, and taxpayer accountability for every dollar spent.
MMI Tank builds bolted and field-welded steel tanks for municipal clients across the western United States. We are experienced with the public procurement process — competitive bid, design-build, and CMAR delivery — and our in-house engineering, fabrication, coating, and erection capabilities keep the full scope under one contract with a single point of accountability.
Municipal Tank Applications
Potable Water Distribution Storage
Ground-level welded reservoirs (AWWA D100) and bolted ground storage tanks (AWWA D103) for treated water distribution systems. NSF/ANSI 61 interior coatings. Sized to meet peak-hour demand, fire flow requirements, and emergency storage per state drinking water regulations. Capacities from 100,000 to 5,000,000+ gallons.
Water Treatment Plant Tanks
Clearwells, filter backwash, chemical contact tanks, equalization basins, and chemical storage for water treatment plants. Custom baffle and nozzle configurations for CT compliance. See our full water treatment tank capabilities.
Fire Protection Water Storage
Dedicated NFPA 22-compliant fire water tanks for municipal facilities, schools, hospitals, and public buildings. Bolted construction for fast deployment; welded for larger capacities. Freeze protection options for cold-climate sites.
Wastewater Treatment Plant Tanks
Equalization, clarifiers, digesters, sludge holding, and biosolids storage for municipal wastewater treatment plants. H₂S-resistant coatings for aggressive headspace environments. See our full wastewater tank capabilities.
Stormwater Management
Detention and retention tanks for stormwater compliance. Steel tanks provide a smaller footprint than open ponds and can be sited in constrained urban locations where land is at a premium.
Pump Station and Booster Storage
Suction tanks at pump stations and pressure zone booster locations. Sized to prevent pump cavitation and maintain system pressure during peak demand.
Reclaimed Water Storage
Treated effluent storage for reuse — irrigation, industrial supply, aquifer recharge, and purple-pipe distribution systems. Coatings specified for reclaimed water chemistry.
Public Procurement Experience
MMI is experienced with the procurement methods municipalities use:
- Competitive sealed bid — we respond to IFBs with complete bid packages including bonding, insurance, and reference projects
- Design-build — single-source responsibility from engineering through startup
- CMAR (Construction Manager at Risk) — collaborative delivery with GMP pricing
- Job Order Contracting (JOC) — pre-positioned contracts for repeat/emergency tank work
- Cooperative purchasing (Sourcewell, HGAC, etc.) — available where applicable
We carry contractor licenses in 11 western states and maintain bonding capacity for multi-million-dollar municipal tank projects.
Codes and Regulatory Compliance
| Standard | Application |
|---|---|
| AWWA D100 | Welded steel tanks for water storage |
| AWWA D103 | Factory-coated bolted steel tanks |
| NFPA 22 | Water tanks for fire protection |
| NSF/ANSI 61 | Potable water contact materials |
| ASCE 7 | Seismic and wind loading |
| ADA / accessibility | Access ladders, platforms, and hatches |
| State drinking water regulations | Varies — ADEQ, SWRCB, NDEP, etc. |
| Ten States Standards | Water and sewage works design criteria |
Municipal Tank FAQ
Does MMI respond to public bids?
Yes. We regularly respond to municipal IFBs for tank construction, repair, and coating projects. We provide complete bid packages including bid bonds, performance bonds, insurance certificates, and project references.
Can MMI bond a large municipal tank project?
Yes. We maintain bonding capacity sufficient for multi-million-dollar municipal infrastructure projects. Performance and payment bonds per ARS, state statutes, or owner requirements.
Does MMI handle prevailing wage projects?
Yes. We are experienced with Davis-Bacon (federal), state prevailing wage, and project labor agreement requirements on public works projects.
What is the typical timeline for a municipal water tank?
A bolted water tank (100,000–1,000,000 gallons) can be designed, fabricated, and erected in 8–16 weeks from notice to proceed. Field-welded tanks of similar capacity take 12–24 weeks. Foundation lead times are additive unless concurrent with fabrication.
Does MMI provide tank maintenance and inspection after construction?
Yes. Our API 653 program covers periodic inspection, repair, relining, and reconstruction of existing municipal tanks throughout our service territory.
Request a Quote
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