Nonpoint Source Monitoring: TechNOTES

Through the National Nonpoint Source Monitoring Program (NNPSMP), states monitor and evaluate a subset of watershed projects funded by the Clean Water Act Section 319 Nonpoint Source Control Program. The program has two major objectives:

1. To scientifically evaluate the effectiveness of watershed technologies designed to control nonpoint source pollution
2. To improve our understanding of nonpoint source pollution

• guidance on data collection, 
• implementation of pollution control technologies and monitoring design, 
• case studies that illustrate principles in action.

TechNOTES

Prepared by Tetratech, Inc. for US EPA. (TechNOTES were updated in October 2016 to reflect current urls.) 

• Tech Notes 1: Monitoring Data Exploring Your Data, The First Step (pdf) (223.37 KB, July 2005)
• Tech Notes 2: Designing Water Quality Monitoring Programs for Watershed Projects (pdf) (183.77 KB, July 2005)
• Tech Notes 3 Surface Water Flow Measurement for Water Quality Monitoring Projects (pdf) (1.92 MB, March 2008)
• Tech Notes: 4 Lag Time in Water Quality Response to Land Treatment (pdf) (2.34 MB, September 2008)
• Technotes 5: Using Biological and Habitat Monitoring Data to Plan Watershed Projects (pdf) (1.5 MB, September 2008)
• Tech Notes 6: Statistical Analysis for Monotonic Trends (pdf) (687.94 KB, November 2011)
• Tech Notes 7: Minimum Detectable Change Analysis (pdf) (312.5 KB, December 2011)
• Tech Notes 8: Pollutant Load Estimation for Water Quality Monitoring Projects (pdf) (1.42 MB, April 2013)
• Tech Notes 9: Monitoring for Microbial Pathogens and Indicators (pdf) (2.44 MB, September 2013)
• Tech Notes 10: Baseline Assessment of Left-Censored Environmental Data Using R (pdf) (2.98 MB, June 2014)
  • Tech Notes 10 Supplemental Materials (zip) (98.67 KB)  Zip file includes Excel and R files 
• Tech Notes 11: Land Use and BMP Tracking for NPS Watershed Projects (pdf) (2.21 MB, August 2014)
• Tech Notes 12: Explanatory Variables: Improving the Ability to Detect Changes in Water Quality in Nonpoint Source Watershed Studies (pdf) (1.73 MB, August 2014)