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We Pulled Your Water Report So You Don’t Have To — Here’s What It Actually Says
Every year, our city publishes a Consumer Confidence Report — a legally required document that details exactly what was found in your tap water. Most people never read it. The ones who do often walk away more confused than when they started.
We read it for you. And then we did the same for Mission, Edinburg, and Pharr. Here is what those reports say, what they leave out, and what it actually means for your family or business.
First, What Is a Consumer Confidence Report?
A Consumer Confidence Report, or CCR, is an annual water quality report that every community public water system in the United States is required to publish under the Safe Drinking Water Act. It lists the contaminants tested for, the levels found, and how those levels compare to federal maximum contaminant levels, or MCLs, set by the EPA.
Here is the part that tends to surprise people: a result listed as compliant simply means it fell below the legal limit. It does not mean the water is free of contaminants. It does not mean the water meets the most current health research. And it does not account for the fact that many federal limits have not been updated in nearly 20 years.
What the McAllen Report Shows
According to testing data compiled by the Environmental Working Group from McAllen Public Utility results spanning 2014 through 2024, McAllen’s tap water was in compliance with federal health-based drinking water standards during the most recently assessed period. That is the headline the city can truthfully lead with.
But the full picture is more complex. Testing detected 34 contaminants in total. Of those, 15 exceeded health guidelines established by researchers and public health scientists — guidelines that are more protective than federal MCLs, and that reflect more recent science.
Among the contaminants detected above those guidelines were arsenic, total trihalomethanes (TTHMs), haloacetic acids, uranium, and chlorite. These are not obscure or rare findings. Disinfection byproducts like TTHMs and haloacetic acids are a direct result of the treatment process itself — they form when disinfectants react with organic matter in source water. Arsenic occurs naturally in the region’s geology and water supply.
None of this makes the water unsafe to drink by federal standards. But it does highlight the gap between what is legal and what newer health research considers ideal.
What the Reports in Mission, Edinburg, and Pharr Show
Water quality across the Rio Grande Valley varies by utility, source, and treatment process. All of the cities Aqua Clear serves draw from surface water sources in the region, which can introduce seasonal variation in contaminant levels. Disinfection byproducts, in particular, tend to fluctuate based on the organic content of the source water at different times of year.
The pattern across the RGV is consistent with what we see in McAllen: water that meets its legal compliance requirements while still containing contaminants at levels that researchers and independent organizations flag as worth reducing for sensitive populations, including children, pregnant women, and people with compromised immune systems.
The Gap Between Legal and Optimal
The legal limit for arsenic in drinking water is 10 parts per billion. That limit has been in place for decades. Independent public health research has set health-protective guidelines significantly lower at a level meant to represent a negligible lifetime cancer risk.
The same dynamic applies to trihalomethanes and haloacetic acids. Federal rules set combined limits for groups of these compounds, but emerging research continues to refine our understanding of what levels carry meaningful risk, particularly for long-term exposure.
This is not a criticism of local utilities. Compliance is not easy or cheap, and the McAllen Public Utility operates within a regulated framework designed to protect public health. The point is simply that the compliance report is a floor, not a ceiling, for what is possible.
What Filtration Can Do
If you are looking to reduce the contaminants detected above health guidelines in RGV tap water, the strongest point-of-use solution for drinking and cooking water is a certified reverse osmosis system. RO filtration is effective at reducing arsenic, disinfection byproducts, and a range of other dissolved contaminants.
For whole-home improvement, including taste and odor issues caused by chloramines used in treatment, a properly designed carbon-based filtration system can make a meaningful difference at every tap. Hard water is a separate issue that requires a water softener to address effectively, as filtration alone does not remove hardness minerals.
Aqua Clear Water Solutions installs Kinetico drinking water systems, water softeners, and specialty filters for homes and businesses across the Rio Grande Valley. All Kinetico systems carry third-party NSF certifications, which means independent labs have verified that the systems perform as claimed.
How to Read Your Own Report
If you want to look up the Consumer Confidence Report for your specific city, your utility is required to mail it annually or make it available online. You can also search the EPA’s online database by zip code or utility name. When you read it, look for:
The contaminant list and the ‘level detected’ column. Compare those numbers to the MCL column. Then check whether your utility mentions health guidelines in addition to the legal limit.
If you have questions about what the numbers mean for your household, Aqua Clear offers free in-home water tests. We can help you understand what is in your water and what, if anything, makes sense to address.
Contact us today to learn more!