NIGP 40033: Castings, Ductile Iron

NIGP 40033 Castings, Ductile Iron is an Item code under which state and local governments procure large-diameter ductile iron pipe sections, fittings, and related components for water utility infrastructure. The work being solicited centers on Class 250-rated pipe, gland retainers, tapping sleeves, saddles, spools, and repair parts, typically sourced through informal written quotations (IWQ) and competitive bids with delivery to municipal water facilities. Gwinnett County, Georgia dominates recent activity under this code, accounting for the plurality of posted opportunities and issuing informal written quotations for both large-diameter ductile parts and repair components. The City of Dallas and City of Southlake, Texas, also use the code for utility parts procurement; Dallas established a five-year ID/IQ master agreement for ductile iron pipe to the Water Utilities department while Southlake sought multiple category awards for utility parts and supplies.

Recent procurement activity concentrates in Georgia and Texas. Gwinnett County posted four opportunities between May and September 2026—IWQ 131138 for ductile iron repair parts (due May 18, 2026), IWQ 130376 for ductile iron spools (due May 18, 2026), IWQ 137554 for large-diameter ductile parts including 30-inch pipe and tapping sleeves (due September 8, 2026), and IWQ 138607 for large-diameter ductile parts (due September 18, 2026)—all awarded to the lowest responsive and responsible vendor with delivery restricted to business hours at the DWR Central Facility in Lawrenceville. The City of Dallas issued a competitive IFB (BG2600030409) on May 14, 2026, to establish a five-year ID/IQ master agreement for ductile iron pipe with delivery by June 12, 2026. All Gwinnett County solicitations require vendor compliance with Georgia's Illegal Immigration Reform Enhancements for 2013, non-collusion certification, three project references of similar scope, and verification against the county ineligible source list; neither City of Dallas nor Gwinnett County opportunities specify M/WBE set-asides in available documentation.