Water Quality



The NPCA completes monthly sampling and testing at some surface water stations and groundwater wells across our watershed. Surface water samples are tested for numerous parameters, including ecoli, nitrates and lead. Groundwater sample tests include nutrients, metals and bacteria.

Water Quality Reports detailing this initiative are produced annually and available for download (pdf):  


20172017 Water Quality Report
20162016 Water Quality Report

2014 Water Quality Report
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F 
Appendix G
Appendix H
Appendix I
Appendix J
Appendix K
Appendix L
Appendix M

20092009 NPCA Water Quality Report
APPENDIX A: Surface WaterQuality Index Ratings 2009
APPENDIX B: Biomap WaterQuality Assessments 2009
APPENDIX C: Provincial Groundwater Monitoring Network 2009


The Water Quality Monitoring Program completed the NPCA Groundwater Study in 2005, the results of which are available here: NPCA Groundwater Study Final Report.

Water Quality data that is collected by the NPCA is now available through the Ontario Ministry of the Environment's map portal

This section also administers the Water Well Decommissioning Grant Program, which provides financial assistance to landowners to properly close inactive water wells and ensure they do not become a future threat to ground water quality. For information about the program, and to apply, visit the Water Well Decommissioning Grant Program page.