Understanding your home's water quality starts with recognizing the difference between regional data and your specific water conditions. In Citronelle, Mobile County, the public water supply's chromium-6 levels have been measured by federal surveys, but these findings reflect overall system performance rather than any single household's water.
Why California Set a 10 µg/L Limit and What That History Means for Citronelle Residents
California established a public health goal of 10 micrograms per liter (µg/L), equivalent to parts per billion (ppb), for chromium-6—also known as hexavalent chromium or chromium(VI)—due to concerns raised in its own water systems. This limit serves as a precautionary benchmark but is not a federal regulatory standard. In Mobile County's Citronelle area, federal monitoring under the EPA’s Unregulated Contaminant Monitoring Rule (UCMR3) found chromium-6 at levels well below 10 µg/L, with highest reported measurements at 0.37 µg/L. This suggests that while chromium-6 is present, it is at much lower concentrations than California’s goal value, providing context for residents evaluating any need for treatment.
How Oxidation States Change Between the Well, Distribution Main, and Tap
Chromium can exist in multiple oxidation states. Chromium-6 is a more oxidizing form, while chromium-3 (trivalent chromium) is less so. Water sourced from wells may contain chromium in different states depending on local geology and chemistry. Throughout the distribution system, factors like aeration and treatment can alter chromium's oxidation state, sometimes converting chromium-6 to less reactive forms before it reaches household taps. Therefore, detection of chromium-6 in groundwater does not guarantee the same concentration or form at the tap itself.
Household Symptoms That Do and Do Not Indicate Chromium-6 Presence
Chromium-6 is a metal ion and does not produce taste, odor, or staining at the low concentrations reported in the Citronelle water system. Common household signs such as discolored water or metallic taste are unlikely to be caused by chromium-6 at these levels and may stem from other unrelated water quality factors. Only laboratory water testing specific to chromium-6 can determine its presence and concentration in your household supply.
The UCMR3 Nationwide Survey: Purpose and Limitations for Individual Households
The EPA’s UCMR3 survey, conducted from 2013 to 2015, sampled the South Alabama Utilities Water System serving Citronelle. Results from this federal occurrence study indicate that chromium-6 was detected in over half the samples but at concentrations below any federal Maximum Contaminant Level (MCL). Importantly, this survey was designed to gather data about public water systems, not to assess individual household water quality. Thus, local circumstances such as plumbing materials or home well variations require separate testing for definitive information.
How Treated Water Differs at the Tap When Using the C-Series Chromium-6 Filter
The C-Series Chromium-6 Filter ships ready to configure and is designed to reduce chromium-6 levels in household water. Using proven adsorptive and filtration technologies, the filter targets hexavalent chromium ions to lower their concentration and improve water quality at the tap. This treatment can provide confidence for households wanting to address chromium-6 detected in their area’s water supply data.
How the C-Series Technology Addresses Chromium(VI) in Household Water
The technology relies on selective adsorption and filtration media that bind chromium-6 ions, effectively removing them from water passing through the system. This technology is matched to the scale of residential water use, providing an accessible option for homes concerned with chromium-6. Because it specifically targets chromium(VI), it offers focused treatment without unnecessary alteration of other water constituents.
For households in Citronelle considering their options, the documented C-Series Chromium-6 Filter is a practical choice when water testing reveals chromium-6 levels aligned with regional findings. Testing your own water for chromium-6 concentration will clarify the treatment demand and help select an appropriate solution tailored to your household's needs.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-03-17. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for South Alabama Utilities Water System (AL0000967), AL: 80 results across 2 listed contaminants, 32 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L