This is a combined synopsis/solicitation seeking commercial services for a Closed Loop Water Testing requirement, with a 100% small business set-aside under NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors). The contractor will provide all personnel, equipment, supplies, transportation, tools, materials, supervision, and other nonpersonal services necessary to perform the support services defined in the Performance Work Statement. Current solicitation documents are drafts; final documents will be provided with sufficient time for quote revisions, and an extension of the quote due date will be considered if there is a delay in issuing the final documents. The attached solicitation document includes contract line-item numbers, service descriptions, quantities, dates, place of performance, provisions, clauses, and evaluation factors. No specific budget amount or performance location is identified in this notice.