The New York City Department of Health and Mental Hygiene (“NYC Health Department” or “the Agency”) is seeking proposals from analytical laboratories to provide environmental testing services. The primary testing anticipated for the contract(s) resulting from this RFP is Legionella in environmental samples collected during routine cooling tower inspections and during public health investigations. Contractor(s) would perform Legionella testing using culture and rapid quantitative Polymerase Chain Reaction (qPCR) methods for non-potable and potable water and swab samples. The selected vendor(s) may also be required to conduct secondary testing for microbiological, physical and chemical parameters from environmental samples, which may be from drinking water, non-potable water, recreational water, or other environmental sources