Health Assessment, Consultation and Education Program
Medical Evaluation and Risk Assessment Program
National Toxic Substance Incidents Program
State Laboratory of Public Health
N.C. Well Contractors Certification Commission
Frequently Asked Questions
As a private well water owner, it is up to you to test your water to ensure it is safe to use. Protect yourself and your family by testing your water regularly. |
All newly constructed private wells in North Carolina must be tested by the North Carolina State Laboratory of Public Health or a certified laboratory prior to establishing the well as a source of drinking water. These tests for bacterial and chemical contaminants should be conducted within 30 days of the well completion.
Well owners should check the wellhead once a year to make sure it is working properly and ensure that there are no cracks or openings where contaminants can get into your groundwater. Well water should be tested after repairs or replacements to any of the well components and after flooding events, since contaminants may enter your well when it is opened or if the wellhead is underwater.
Every Year | Test for total and fecal coliform bacteria. |
Every Two Years | Test for heavy metals, nitrates, nitrites, lead, copper and volatile organic compounds (VOCs). |
Every Five Years | Test for pesticides. If you know of a particular pesticide that is applied in your area, test yearly. |
Special situations that may require additional testing: