Metallic Taste in San Juan County Water: What Area Manganese Levels Reveal
$1,650.00 $2,195.00
✓ Free shipping in the USA · ✓ 90-day returns · ✓ Secure checkout
What does the median and range of manganese levels in San Juan County’s aquifer mean for my water taste?
Water sampled from the 110AVMB aquifer in San Juan County shows manganese concentrations with a median of 81.0 micrograms per liter (ug/L) and a range from 0.0 to 29,000.0 ug/L, based on 285 samples from nine wells collected between July 2010 and September 2025. Most samples detected manganese, though none exceeded federal thresholds.
For a homeowner, this means that while manganese is commonly present in groundwater here, the levels vary widely. This element can impart a metallic flavor noticeable at taps or in cooking water, even at concentrations below health-based standards. The wide range indicates some wells experience much higher manganese levels than others, reflecting natural variation and local geology.
What household water symptoms suggest manganese-related metallic taste versus other causes?
If your water picks up a metallic taste, consider whether other symptoms occur. Manganese typically affects taste without causing staining or visual discoloration at lower levels. Metal pipes or household equipment failures might also produce metallic taste, but these often come with corrosion signs or fluctuating water quality.
Since your previous water treatment equipment is no longer functioning, the recurring metallic taste may be due to manganese presence being untreated rather than introduced contaminants. Confirming this involves water testing from your household supply to differentiate manganese taste from plumbing-related metallic flavors.
How do aquifer sample depths compare to typical well depths, and what should I expect?
The sampled wells in San Juan County’s 110AVMB aquifer were between 35 and 68 feet deep. Residential wells in this area commonly draw from similar depths, so the manganese concentrations found in these samples likely represent what a typical household well might encounter.
However, local variation can be significant depending on exact well location and depth. Water drawn deeper or shallower than the sampled range might have different manganese levels or other influencing constituents that alter taste.
How does the Fleck metallic-taste water filter work to reduce manganese taste?
The Fleck Metallic-Tasting Water Filter is designed specifically to address metallic flavors from dissolved metals like manganese. It uses a filtration process that captures or chemically alters manganese particles present in water, reducing the metallic taste without introducing chemicals or salts.
This system ships ready to configure for household settings and functions as a centralized point of treatment for the water supply, improving taste consistently at faucets and for cooking. Its operation does not depend on ongoing external chemical additions but on proven filtration technology suited for manganese removal.
How do manganese levels in San Juan County change over time, and what does that imply?
The recorded samples from 2010 through 2025 show that manganese concentrations can vary substantially over years, indicating natural fluctuations in groundwater chemistry. This variability means that even if manganese levels are moderate now, they can increase or decrease with changing aquifer conditions, precipitation, and groundwater flow patterns.
For homeowners, this suggests periodic water testing may be needed to track changes in taste and manganese levels rather than relying solely on historic data.
What should I NOT assume from these regional manganese data about my own well water?
It is important not to conclude your household well water contains exactly the manganese levels seen in area samples, since these represent multiple wells over many years, not a single source. Detection of manganese in the regional data does not signal a violation of safety standards but indicates a potential for metallic taste in some water supplies.
To understand your specific water quality and taste issues, a well-water test targeting manganese and other metal concentrations is essential. Using this information along with a Fleck Metallic-Tasting Water Filter can provide targeted treatment tailored to your household’s actual water chemistry.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2025-09-19. 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 Manganese in the 110AVMB aquifer (San Juan County): 285 results from 9 wells, median 81.0 ug/L, range 0.0-29000.0 ug/L; none above any federal threshold