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When it comes to private well water, knowing what to test for is just as important as the testing itself. Unlike public water systems regulated by the EPA, private wells don’t have mandated testing standards. This means the responsibility falls on well owners to ensure their water is safe to drink. In this guide, we’ll explore the most practical and effective test parameters to consider for private well water.
The Environmental Protection Agency (EPA) sets maximum contaminant levels for public water systems. However, these standards may not fully apply to private wells, which are raw water sources. For example, while the EPA allows small amounts of contaminants like lead and arsenic in public water, no level is truly safe in untreated well water.
To ensure comprehensive water safety, consider testing for the following categories:
Annual testing is recommended for general water quality. However, you should test more frequently if:
Ensuring the safety of your private well water starts with comprehensive testing. By focusing on these six essential categories, you can better understand the quality of your water and take the necessary steps to protect your family’s health.
Learn more about water testing services today.
On June 5, 2026, residents in nearly a dozen neighborhoods in Northwest Washington DC started noticing something wrong with their water pressure. DC Water received calls from customers experiencing low to no pressure at multiple locations at the same time the Fort Reno Pumping Station was experiencing fluctuating power issues, with a full loss of power hitting at around 12:30 p.m.
No state in America has perfectly clean tap water. That is not a dramatic claim. It is simply what the data shows. Based on EPA violation data, contaminant testing, and infrastructure assessments, the states with the most documented tap water problems in 2026 are Texas, California, New York, New Jersey, Florida, Pennsylvania, Louisiana, Arizona, Wisconsin, and Massachusetts. The most common problems across these states are PFAS, lead service lines, disinfection byproducts, arsenic, and nitrates.
About 59 million Americans have access to tap water or a private well and choose not to drink it. Since just before the Flint water crisis began in 2014, the number of adults who avoid their tap water has increased by 40 percent, and among children it’s risen by 63 percent.
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No state in America has perfectly clean tap water. That is not a dramatic claim. It is simply what the data shows. Based on EPA violation data, contaminant testing, and infrastructure assessments, the states with the most documented tap water problems in 2026 are Texas, California, New York, New Jersey, Florida, Pennsylvania, Louisiana, Arizona, Wisconsin, and Massachusetts. The most common problems across these states are PFAS, lead service lines, disinfection byproducts, arsenic, and nitrates.
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On June 5, 2026, residents in nearly a dozen neighborhoods in Northwest Washington DC started noticing something wrong with their...
No state in America has perfectly clean tap water. That is not a dramatic claim. It is simply what the...
About 59 million Americans have access to tap water or a private well and choose not to drink it. Since...
