2026 Treatment Chemicals Technical Proposals

The Onslow Water & Sewer Authority, North Carolina is soliciting unpriced technical proposals for Phase 1 of a 2026 Treatment Chemicals reverse auction, with proposals due August 31, 2026 at 2:00 p.m. The procurement is structured as a multistep competitive sealed bid: Phase 1 evaluates technical qualifications; Phase 2 conducts price proposals and dynamic bidding on EasiBuy, LLC's web-based platform.

The scope covers bulk and mini-bulk treatment chemicals for water and wastewater treatment operations across eight facilities—Hubert WTP, Dixon WTP, Northwest Regional WWTP, Southeast Regional WWTP, Summerhouse WWTP, Webb Creek WWTP, Black Creek Wells, and facilities under construction. Required chemicals include Aluminum Sulfate (Commercial Alum), Liquid Sodium Hypochlorite 12.5%, Sodium Permanganate 20%, Peracetic Acid, Citric Acid Salt, Non-Methanol Carbon, Liquified Hydro Fluorosilicic Acid, Zinc Ortho-Phosphate, Granular Calcium Hypochlorite, Tablet/Stix Calcium Hypochlorite, Liquid Lime, and Hydrated Lime. FY 25/26 estimated usage ranges from zero gallons at new facilities to over 100,000 gallons for certain chemicals at established locations, with delivery frequencies varying from weekly to yearly. Storage capacities at facilities range from 40 gallons at individual wells to 120 tons at treatment plants; delivery for liquid chemicals typically occurs every two weeks to monthly.

The contract term is 12 months with quoted prices fixed for the full period. ONWASA and the contractor may mutually agree to renew for one additional 12-month term upon each anniversary, with renewal options available up to four times, contingent on appropriation of funds. The contractor must maintain General Liability ($1 million per occurrence / $2 million aggregate), Automobile Liability ($1 million per person / $1 million per accident), Workers' Compensation per statutory requirements with Employers Liability ($500,000 per occurrence), and Excess Liability / Umbrella ($1 million per occurrence). Payment is due within 30 days of invoice. Vendors must submit an ACH form with technical proposals to be eligible for Phase 2.