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NC State Extension

Water Sources and Testing

Water Testing Tips for Growers (N.C. Cooperative Extension)

Rain Barrels and Cistern Testing

If you are interested in testing your rain barrels for generic E. coli, this page gives a great explanation as to how to do it. Some roof runoff might be contaminating the water with heavy metals, but that varies by location and is something you might want to bring up when you contact the companies for prices and sampling procedures.

Well Water


  • Gardening with Greywater
    Don’t water edible plants and fruit trees with greywater – save it for ornamental (non-edible) plants