Canadian and US monitoring includes Regional Districts, Counties, federal and state programs. Examples follow:
Fisheries and Oceans Canada Marine monitoring: https://www.waterproperties.ca/mainlogin.php?refer=/
Environment and Climate Change Canada (ECCC Disposal at Sea): https://www.canada.ca/en/environment-climate-change/services/disposal-at-sea.html
Vancouver Aquarium Pollution Tracker Program: https://www.vanaqua.org/act/research/ocean-pollution-research-program
Capital Regional District Victoria wastewater outfall monitoring: https://www.crd.bc.ca/search-results?searchQuery=marine+wastewater+outfall+monitoring+reports&page=2
Metro Vancouver wastewater outfall monitoring: http://www.metrovancouver.org/services/liquid-waste/treatment/environmental-monitoring/annual-reports/Pages/default.aspx
Washington State Department of Ecology: https://ecology.wa.gov/Research-Data/Monitoring-assessment/Puget-Sound-and-marine-monitoring
Hakai Institute: https://www.hakai.org/
NOAA/PMEL Ocean Acidification Program: Contact http://oceanacidification.noaa.gov/