RFQ_WRS250636_Laboratory_Deionized_Water_System_-_Exhibit_C_Appendix.pdf

This document is Appendix 'C' from the City of Ocala's Laboratory Deionized Water System solicitation (RFQ# WRS/250636), specifically detailing standard methods and maximum acceptance limits for water quality testing. The appendix outlines precise contaminant thresholds using Standard Methods 23rd Edition Table 9020: II, which establishes rigorous quality control parameters for laboratory deionized water.

The table specifies maximum acceptable limits for various contaminants, including conductivity (< 2 µmhos/cm at 25°C), total heavy metals (< 0.10 mg/L), individual heavy metals like cadmium and lead (< 0.05 mg/L), total organic carbon (< 1.0 mg/L), total chlorine residual (< 0.10 mg/L), and heterotrophic plate count (< 500 CFU/mL). These stringent specifications ensure the high-purity water required for accurate laboratory testing and regulatory compliance at the City of Ocala's Water Quality Laboratory, with a statistical validation method (Student's t ≤ 2.78) to verify water quality standards.