← all states

HomeState by StateNorth Carolina › Silver Slip

Nitrate at Silver Slip

North Carolina · system NC0150168 · serves 79 people

Band placed by this system's most recent reported result within a rolling three-year window. That result was a non-detect — the ranked value of 0.01 is half the reported limit, a convention, not a measurement.

The reading

Not detected
most recent · Apr 2026 · reported limits <0.02 to <0.04 · ranked at 0.01 mg/L as N
ND · limits <0.02 to <0.04
three-year range · all non-detect
4 samples
what this result rests on
79
people served

A single reading is not a complete account of what a household drinks, so the three-year range and the number of tests behind it are shown too — a reading backed by many tests over three years is a fuller picture than one from a single sample.

Source: North Carolina Department of Environmental Quality - Public Water Supply Section drinking-water records (bulk data feed; no per-record link) · North Carolina · system NC0150168 · the three years from August 9, 2023 to August 9, 2026

Where this ranks

This system's nitrate sits near the low end nationally. Systems reporting less serve about 2% of everyone on NitrateSmart's tracked supply; the other about 98% are on systems reporting the same or more. That compares what systems reported, not what comes out of any one tap.

Natural backgroundHuman impact likelyHuman impact clearHealth-study rangeAbove the federal limit

What "Natural background" means

This system's nitrate sits within the range that occurs naturally in groundwater[1]. There is no sign of a human fingerprint in the water. It is a statement about the source, not a clean bill of health — nitrate is only one thing a water test looks at.

Sources

  1. Dubrovsky, N.M., and others (2010). Nutrients in the Nation's Streams and Groundwater, 1992–2004. U.S. Geological Survey Circular 1350.

The bands describe how strongly human activity, read from nitrate, has marked a water source — they are not a safety verdict. More on what the numbers mean and where nitrate comes from.

NitrateSmart

Nitrate in community water systems, from the utilities’ own compliance reporting.

Results reaching back to July 2023 · current through August 9, 2026.

Data & methods

How this is built
Coverage and gaps

About

About
Privacy
Health data privacy
Contact