How to Take a Water Sample
First Nations Health Authority
Canadian public-health demo: tap prep, sterile bottle, hold time.
Videos
Well water testing videos
Privacy-friendly YouTube embeds (youtube-nocookie, lazy-loaded). Public-health and university extension sources — not lab ads.
Testing Well Water
HKPR District Health Unit
Short Ontario health-unit how-to for collecting a well sample.
Interpreting Your Water Test Report
Penn State Extension
How to read common private-well parameters on a lab report.
Shock Chlorination of a Private Well
Montana State University Extension
Dose, circulate, wait, flush, and retest after disinfection.
Well Water Testing
University of Arizona CALS
Why private wells need testing (bacteria, nitrate, arsenic context).