US EPA Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities Unified Guidance....aka Unified Guidance Citation: Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities — Unified Guidance, EPA 530/R-09-007. United States Environmental Protection Agency 2009. Available online at https://archive.epa.gov/epawaste/hazard/web/html/index-12.html
Statistical Methods in Water Resources by USGS Note this supersedes USGS Techniques of Water-Resources Investigations. Citation: Helsel, D.R., Hirsch, R.M., Ryberg, K.R., Archfield, S.A., and Gilroy, E.J., 2020, Statistical methods in water resources: U.S. Geological Survey Techniques and Methods, book 4, chap., Available online at https://doi.org/10.3133/tm4a3
US Navy Handbook for Statistical Analysis of Environmental Background Data
US Navy Guidance for Environmental Background Analysis - Volume 1
US Navy Guidance for Environmental Background Analysis - Volume 2
Example Data
20,000 observations with a mean of 100 and a standard deviation of 10. Note it has a tabs were the 20,000 was sampled 20 times with 10 samples per sample.