Total Dissolved Solids and Chloride Study (S-069)

The City of Los Angeles Sanitation Bureau is issuing a Task Order Solicitation (TOS) for a Total Dissolved Solids (TDS) and Chloride Study (S‑069). Only the 31 prime consultants listed on the attached “On‑Call Consultant List” are eligible to submit proposals; sub‑consultants may be considered only through those primes. The scope of work calls for comprehensive water‑quality sampling, laboratory analysis, data interpretation, and a final technical report that addresses TDS and chloride concentrations across the city’s wastewater system. The solicitation includes a pre‑proposal (pre‑bid) meeting on 13 August 2026 and a bid submission deadline of 30 September 2026. The anticipated budget is $500,000. • Eligible respondents: 31 pre‑approved prime consultants only • Required services: field sampling, lab analysis, data modeling, reporting on TDS & chloride levels • Deliverables: data collection plan, analytical results, technical report, recommendations for compliance • Contract type: task‑order, on‑call basis, likely a one‑time study (duration not specified) • Key dates: posting 7 Aug 2026, pre‑proposal meeting 13 Aug 2026, bid due 30 Sep 2026 • Contact: Thomas Wyatt (City of Los Angeles, Sanitation Bureau)