The Patos Lagoon SPM Compendium consists of over four decades (1978-2019) of suspended particulate matter (SPM) and turbidity measurements gathered from multiple research and monitoring projects. Measurements consist of SPM in situ sampling, satellite derived SPM estimates, rating curve approach for SPM estimates, and SPM derived from turbidity measurements. Only measurements with detailed description of the sampling and analysis protocols were used. From these records, the SPM concentrations ranged from ~0.1 g/m³ up to ~1000 g/m³.