Success Story: NIW Approval After RFE for an Environmental Engineering Researcher Advancing Water Treatment Technologies
Client’s Testimonial:
"Thank you for your hard work.”
On August 12th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Senior Engineer in the Field of Environmental Engineering (Approval Notice).
General Field: Environmental Engineering
Position at the Time of Case Filing: Senior Engineer
Country of Origin: China
State of Residence at the Time of Filing: California
Approval Notice Date: August 12th, 2026
Processing Time: 12 months, 7 days (Premium Processing Upgrade Requested)
Case Summary:
A recent EB-2 NIW approval was granted to an environmental engineering researcher from China whose work focuses on designing and evaluating advanced water treatment technologies for detecting and removing chemical and pathogenic contaminants.
The client’s proposed endeavor centered on strengthening public health and national water security through improved contaminant detection, pathogen control, wastewater monitoring, disinfection processes, and potable reuse systems. North America Immigration Law Group (NAILG) structured the petition to emphasize the national importance of safe water infrastructure, reliable treatment strategies, and technologies that help reduce risks from waterborne pathogens.
The client’s academic and professional record reflects strong preparation for this endeavor. Specifically:
- Ph.D. in environmental engineering
- 2 peer-reviewed journal articles, including 1 first-authored article
- 5 accepted first-authored conference abstracts, and 3 technical reports
- 146 citations across published work
- At least 10 peer review contributions for respected journals in environmental engineering and related fields
- Research supported by funding from the National Science Foundation (NSF)
- 4 recommendation letters, including 2 independent advisory opinions. One expert emphasized:
"By supporting data-driven decision-making and early intervention, her work not only improves community health resilience but also advances the broader national interest in strengthening the country’s capacity to respond to emerging biological threats."
Beyond publication metrics, the client’s research in water quality engineering, virus detection, disinfection, and wastewater surveillance had been cited and relied upon by other researchers. One paper ranked among the top 1% most-cited Environment and Ecology articles for its publication year, highlighting the significance of her work.
The petition also emphasized the client’s current employment as a senior engineer at a U.S.-based water treatment engineering company, where she continues to work on recycled water, emerging contaminant detection, disinfection optimization, and potable reuse solutions. This current role aligned closely with the proposed endeavor and helped demonstrate that the client was well positioned to continue advancing the same nationally important work.
After receiving a Request for Evidence, NAILG further clarified the connection between the client’s prior research, current applied engineering role, and future plans in advanced water treatment. By presenting her work as a focused environmental engineering endeavor tied to public health, water safety, and infrastructure resilience, we demonstrated that the client met the NIW standard.
USCIS approved the I-140 National Interest Waiver petition on August 12th, 2026, following a filing period of 12 months and 7 days. This approval reflected the successful presentation of an environmental engineering case grounded in publication impact, peer-review service, expert support, independent scholarly reliance, and a proposed endeavor aimed at improving water treatment technologies and protecting public health in the United States.