ANSI AWWA D103-19 PDF

Full title and description

ANSI/AWWA D103-19 — Factory-Coated Bolted Carbon Steel Tanks for Water Storage. This standard provides requirements for the materials, fabrication, factory coating, assembly, and testing of bolted carbon-steel tanks used for potable water storage, including requirements for panels, joints, coatings, and appurtenances for aboveground bolted tanks.

Abstract

ANSI/AWWA D103-19 sets minimum consensus requirements for factory-coated, bolted, carbon-steel water-storage tanks. It addresses panel fabrication and dimensional requirements, surface preparation and factory-applied interior and exterior coating systems, joint gasketing and bolting, shop inspection and testing, and interfaces with cathodic protection and disinfection practices. The standard is intended to ensure long-term storage performance and water quality through controlled factory coating and documented manufacturing practices.

General information

• Status: Published / active standard (ANSI/AWWA designation).
• Publication date: 2019 (designated D103-19).
• Publisher: American Water Works Association (AWWA); approved as an ANSI standard.
• ICS / categories: Water supply; storage tanks; construction and coatings for potable-water facilities.
• Edition / version: D103-19 (2019).
• Number of pages: Varies by format (AWWA/ANSI published standard — typical AWWA standards of this type are commonly in the few‑dozen page range; print and electronic pagination may differ).

Scope

Applies to factory-coated bolted cylindrical carbon-steel tanks for potable water storage. The standard covers materials of construction for panels and fasteners, panel geometry and tolerances, surface preparation (near‑white blast or specified alternative for fused‑glass panels), acceptable factory-applied interior and exterior coating systems (thermoset liquid/powder epoxy, fused glass, galvanizing, and other specified systems), gasket and joint sealing systems for bolted joints, shop fabrication and inspection, hydrostatic testing, and requirements for coordination with cathodic protection and disinfection standards. It is focused on aboveground bolted tanks assembled from prefabricated steel panels.

Key topics and requirements

• Materials and fabrication tolerances for bolted steel panels and flanged connections.
• Surface preparation requirements (near‑white blast SSPC‑SP10 or specified alternatives) before coating.
• Approved factory-applied interior coating options (amine‑cured thermoset epoxy, fused glass, or galvanizing) for potable-water contact surfaces.
• Exterior coating systems selection and application, including baked thermoset liquid or powder systems and fused-glass options.
• Joint gasketing, fasteners, torque and sealing procedures for bolted joints to achieve watertight performance.
• Shop inspection, factory testing, and requirements for purchaser observation of coating and fabrication operations.
• Hydrostatic testing and acceptance criteria for field assembly.
• Coordination references to cathodic protection (AWWA D104, D106) and disinfection (AWWA C652) requirements.

Typical use and users

Used by municipal water utilities, consulting and design engineers, tank manufacturers, fabricators, contractors, and specifying authorities for procurement, design basis, fabrication oversight, and acceptance of bolted steel potable-water storage tanks. It is referenced in contract specifications, procurement documents, and regulatory guidelines for water system infrastructure projects.

Related standards

Closely associated AWWA standards include ANSI/AWWA D100 (welded carbon steel tanks), ANSI/AWWA D102 (coating steel water-storage tanks), ANSI/AWWA D104 and D106 (cathodic protection for interior submerged surfaces), and C652 (disinfection of water-storage facilities). These standards are commonly cited together when specifying design, coating, protection, and commissioning of steel storage tanks.

Keywords

Bolted steel tank; factory-coated; carbon steel; potable water storage; coating systems; fused-glass; thermoset epoxy; surface preparation; SSPC‑SP10; joint gasketing; AWWA D103-19; ANSI/AWWA.

FAQ

Q: What is this standard?

A: ANSI/AWWA D103-19 is the American Water Works Association standard that prescribes materials, fabrication, coating, assembly, and testing requirements for factory‑coated bolted carbon‑steel potable‑water storage tanks.

Q: What does it cover?

A: It covers panel and fastener materials and tolerances, surface preparation, accepted factory interior and exterior coating systems, gasketing and bolting for watertight joints, shop inspection and testing, and interfaces with cathodic protection and disinfection practices for bolted tanks.

Q: Who typically uses it?

A: Water utilities, consulting engineers, tank manufacturers and fabricators, contractors, and procurement/specification professionals use this standard to specify and verify bolted tank design, fabrication, coatings, and acceptance.

Q: Is it current or superseded?

A: The document is published as D103‑19 (2019). Users should confirm with AWWA or the purchaser whether a later revision or an erratum has been issued for this standard before final specification or acceptance.

Q: Is it part of a series?

A: Yes — D103 is part of the AWWA steel‑tank family of standards and is routinely used with AWWA D100 (welded steel tanks), D102 (coatings), D104/D106 (cathodic protection), and related C and M series standards for water system components.

Q: What are the key keywords?

A: Bolted steel tank, factory-coated, potable water storage, fused-glass, thermoset epoxy, surface preparation, joint gasketing, AWWA D103-19.