You might notice an unusual taste or color in your tap water, or simply want to understand if nitrate could be affecting your household water supply in Navajo County, Arizona. Nitrate is a naturally occurring compound often found in groundwater, including the region's aquifer 220NAVJ. While some nitrate presence is common, understanding its levels and implications in your water requires careful attention.
How Does Well Depth or Source Type Affect Expected Nitrate Levels?
Government groundwater sampling in Navajo County’s aquifer 220NAVJ measured nitrate concentrations in wells ranging from 554 to 3,737 feet deep. The data collected from 14 different wells over nearly a decade shows that nitrate detection varies widely with depth and location. Deeper wells typically access older water that may have different nitrate content compared to shallower sources. Therefore, knowing your water source depth and type helps set realistic expectations for nitrate levels in your household water.
What Information Should I Have Ready Before Seeking Nitrate Treatment Advice?
- Documentation of your well depth or municipal source details
- Results from a laboratory water test specifically measuring nitrate levels
- Any previous water quality reports or notices from local water authorities
- Details about household water usage and any water treatment currently in place
Gathering this information ensures any recommendations or solutions align with the actual conditions affecting your water supply.
How Will My Tap Water Change After Using the Pentair Nitrate & Nitrite (Well) Filter?
This system is designed to reduce nitrate and nitrite levels in your water, enhancing its quality for household use. Once configured, the filter works by selectively removing these compounds, potentially improving water taste and safety where nitrate concentrations are a concern. You may notice clearer water and a reduction in any nitrate-related issues previously observed at your tap.
What Do 'Detected', 'Median', and 'Range' Mean in This Nitrate Sampling Record?
'Detected' means the instrument identified nitrate at some level above the reporting limit, but this is not a violation or proof of unsafe water. In Navajo County’s aquifer 220NAVJ, nitrate was detected in 66 of 80 samples, ranging from 0.021 to 20.9 mg/L, with a median value of 1.37 mg/L. Only one result slightly exceeded the federal maximum contaminant level (10.0 mg/L), indicating that elevated nitrate levels are uncommon but possible. These terms help contextualize what to expect but do not define your specific household water quality.
In What Order Should I Rule Out Issues Before Considering Laboratory Testing?
- Check household water fixtures for any unusual tastes or appearances
- Confirm well depth and source information from local records or property documents
- Review any available municipal or local water quality reports
- Conduct a certified laboratory test focused on nitrate concentration in your specific water supply
Starting with these steps helps ensure that any treatment action matches the real condition of your water.
The data discussed here reflect measurements from 14 wells within the Navajo County aquifer 220NAVJ area, sampled by the U.S. Geological Survey between 2010 and 2019. For more detailed information, visit the official USGS groundwater data portal.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-08-23. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.
On record: U.S. Geological Survey sampling of Nitrate in the 220NAVJ aquifer (Navajo County): 80 results from 14 wells, median 1.37 mg/L, range 0.021-20.9 mg/L; 1 above a health-based federal MCL (federal MCL 10.0 mg/L)