Ancient volcanoes underfoot
Almost all of Stanly County sits on the Carolina Slate Belt, rock made from volcanic ash and sediment hundreds of millions of years ago; the Uwharrie Mountains and Morrow Mountain are what’s left of it. Wells here find water in fractures in that rock. Some areas give generous water; in others, a well may need to go deeper to find enough.
Test for arsenic
University of North Carolina researchers studying tens of thousands of private well tests identified Stanly and Union counties for targeted arsenic monitoring, because wells along the Slate Belt more often exceed the drinking-water standard. Most wells still test fine, but arsenic has no taste, color or smell. If your Stanly County well has never been tested for it, that’s the first test to get.
What else shows up
Iron, manganese and slightly acidic water are common across the Piedmont, and Stanly is no exception. A complete test before buying treatment equipment means you treat what’s actually there.
Permits and rules
The Stanly County Health Department’s environmental health section permits private wells in Stanly County and samples new drinking-water wells after they’re completed.
Slate beltQuestions from Albemarle
Local answers.
Is arsenic common in Stanly County wells?
It’s found more often here than in much of the state because of the Slate Belt rock, and state researchers have flagged Stanly County for targeted monitoring. That doesn’t mean your well has it; a lab test is the only way to know.
Why did my neighbor’s well hit water shallower than mine?
In fractured rock, water depends on where the cracks are, and two wells a few hundred feet apart can meet different fractures. It’s normal in the Slate Belt.
What treats arsenic in well water?
Options depend on the form of arsenic and the rest of the water chemistry, often point-of-use reverse osmosis or whole-house adsorption media. Test first, including pH and iron, then choose.
TopsoilNearby