Erucylamide in Drinking Water
Found in 33 water systems • other
Updated March 2026 • Data from EWG & EPA
What is Erucylamide and Why Does It Matter?
Erucylamide
Erucylamide is a chemical compound used primarily as a slip agent in plastic packaging. Manufacturers add it to plastic films and food packaging materials to reduce friction and make surfaces slide smoothly against each other. It belongs to a class of chemicals called fatty acid amides. When plastic packaging breaks down or leaches during production, erucylamide can migrate into water sources. Industrial runoff and wastewater discharge from plastics manufacturing are the most likely pathways into drinking water supplies.
The health research on erucylamide is still developing, and that's part of what makes it worth paying attention to. Animal studies have raised concerns about potential reproductive and developmental effects at higher exposure levels. Because erucylamide is a fatty acid amide, researchers are also studying how it may interact with hormonal systems in the body. The average detected level in U.S. water systems is 3.297 parts per billion (ppb), with some systems showing peaks as high as 12.0 ppb. Long-term exposure to even low levels of industrial chemicals like this one is an area of active scientific concern, particularly for pregnant women and young children.
The EPA has not set a legal limit — called a Maximum Contaminant Level (MCL) — for erucylamide in drinking water. That means water utilities are not required to remove it or even report it as a violation. The Environmental Working Group (EWG) has flagged erucylamide as a chemical of concern, but no formal health guideline has been established for it yet. This regulatory gap is common with emerging contaminants — science often moves faster than regulation. Of the 33 water systems where erucylamide has been detected, zero exceeded an official guideline, simply because no guideline currently exists. That doesn't mean zero risk. It means the risk hasn't been fully quantified yet.
Geographically, erucylamide detections are concentrated almost entirely in Texas. All 33 water systems where it has been found are located in that state. This pattern likely reflects Texas's significant petrochemical and plastics manufacturing industry, which is heavily concentrated along the Gulf Coast. Facilities in the Houston Ship Channel region and surrounding industrial corridors produce and process plastics at a large scale. Wastewater from these operations can introduce trace chemicals like erucylamide into nearby water sources. Texas also has a large number of water systems drawing from surface water sources, which tend to be more vulnerable to industrial runoff than groundwater wells.
The good news is that erucylamide can be effectively reduced through proper home filtration. Reverse osmosis (RO) systems are the most reliable option. These systems push water through a semipermeable membrane that blocks contaminants at the molecular level, removing up to 99% of many industrial chemicals, including fatty acid compounds like erucylamide. Activated carbon filters — especially high-quality block carbon filters — can also reduce levels meaningfully, though they are generally less comprehensive than reverse osmosis for this type of contaminant. Echo Water's reverse osmosis systems are designed to address exactly this kind of emerging chemical concern, giving families a reliable layer of protection even when regulations haven't caught up to the science. If you're in Texas, especially near industrial areas, checking your local water quality report and pairing it with point-of-use filtration is a practical, straightforward step you can take right now.
Regulatory Standards for Erucylamide
| Standard | Level | Notes |
|---|---|---|
| Average Detected Level | 3.30 ppb | Across all tested systems |
| Highest Detected Level | 12 ppb | Worst-case system |
Cities With the Highest Erucylamide Levels
| # | City | Detected Level | People Served |
|---|---|---|---|
| 1 | Highlands, TX | 12 ppb | 1,677 |
| 2 | Houston, TX | 5.10 ppb | 390 |
| 3 | Houston, TX | 4.30 ppb | 3,873 |
| 4 | Austin, TX | 3.90 ppb | 648 |
| 5 | Bacliff, TX | 3.40 ppb | 0 |
| 6 | Wellborn, TX | 3.40 ppb | 23,170 |
| 7 | Conroe, TX | 3.30 ppb | 628 |
| 8 | Houston, TX | 3.20 ppb | 60 |
| 9 | Georgetown, TX | 3.20 ppb | 90 |
| 10 | Montgomery, TX | 3.10 ppb | 42 |
| 11 | San Antonio, TX | 3.10 ppb | 201 |
| 12 | Houston, TX | 3.10 ppb | 87 |
| 13 | Houston, TX | 3.10 ppb | 75 |
| 14 | Houston, TX | 3 ppb | 40 |
| 15 | Houston, TX | 3 ppb | 2,202,531 |
States Most Affected by Erucylamide
How to Remove Erucylamide From Your Water
Erucylamide is a large synthetic organic compound that basic activated carbon filters cannot reliably remove due to molecular size and affinity; reverse osmosis is more effective.
Standard pitcher filters and carbon-only filters do not reliably remove Erucylamide. A reverse osmosis system with NSF/ANSI 58 certification is the most reliable solution.
Removing erucylamide requires reverse osmosis or specialty granular activated carbon; standard pitcher and fridge filters are inadequate.
Echo RO System
Removes Erucylamide and 99.9% of other contaminants. The gold standard for drinking water purification.
View RO SystemsEcho Hydrogen Water Flask
Once your water is clean, supercharge it with molecular hydrogen for antioxidant benefits.
Shop Hydrogen FlaskFrequently Asked Questions
Is Erucylamide in my drinking water?
Erucylamide was detected in 33 water systems across the US. Check your city's water quality report to see if it affects your water supply.
What are the health effects of Erucylamide in water?
Erucylamide has been associated with various health concerns at elevated levels. The EWG has set health guidelines that are typically stricter than EPA legal limits.
Which city has the most Erucylamide in its water?
Based on our analysis, Highlands, TX has the highest detected levels of Erucylamide in its water supply.
How do I remove Erucylamide from my water?
Reverse osmosis (RO) systems are generally the most effective at removing this contaminant. Check the filtration recommendations section for specific guidance.
Related Contaminant Guides
Data sources: Environmental Working Group (EWG) Tap Water Database, U.S. EPA Safe Drinking Water Information System (SDWIS)
Last updated: March 2026
Methodology: Contaminant levels are compared against both EPA legal limits (Maximum Contaminant Levels) and EWG health guidelines, which are often stricter and based on the latest scientific research.