https://apcc.org/our-work/education/freshwater-ponds/cape-cod-pond-monitoring-program
https://apcc.org/our-work/science/community-science/cyanobacteria/
https://capecodcommission.org/our-work/regional-pond-monitoring-program
https://extension.psu.edu/interpreting-water-tests-for-ponds-and-lakes
https://extension.psu.edu/water-quality-concerns-for-ponds
https://gml.noaa.gov/education/info_activities/pdfs/MAA_understanding_ppm_and_ppb.pdf
https://neiwpcc.org/wp-content/uploads/2020/08/NELP_Report_Web.pdf
https://provincetownindependent.org/featured/2019/08/09/danger-blooms-in-cape-cod-ponds/
https://waterquality.capecodcommission.org
https://wnsha.org/issues/climatechange/PondsClimateChange.pdf
www.capecodcommission.org/our-work/cape-cod-water-quality-data-portal/
www.capecodgroundwater.org/ponds-estuaries/stewardship-program/
www.epa.gov/national-aquatic-resource-surveys/indicators-chlorophyll
www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table
www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table https://capecodcommission.org/our-work/pond-characteristics
www.epa.gov/water-research/reducing-excess-nutrients-research-pilot
www.sthelensoregon.gov/dwff/page/understanding-parts-million