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Polluted Runoff: Nonpoint Source (NPS) Pollution

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
NNPSMP TechNOTES is a series of publications that EPA  published between 2005 and 2014 that describes this unique research and monitoring effort. TechNOTES offer:
  • guidance on data collection, 
  • implementation of pollution control technologies and monitoring design, 
  • case studies that illustrate principles in action.


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

Tech Notes 10 Supplemental Materials(9 pp, 101 K)   Zip file includes Excel and R files 

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