Admission Requirements (B.S. to Ph.D.):-
A BS degree in engineering or in a science related to engineering from an accredited college or university or the foreign equivalent of an accredited American BS or MS degree in engineering. Non-engineers with degrees in related fields may be considered for admission after certain prerequisite courses are completed. A list of pre-requisites and leveling courses can be found on the Information for Non-Engineers page. Applicants with non-science bachelor's degrees in fields such as technology, management, business, and the arts must obtain an accredited engineering degree before applying.
A minimum grade point average (GPA) of ''B'', i.e., 3.0 on a 4.0 scale on the last 60 hours of course work attempted.
Satisfactory scores on the General Aptitude test of the Graduate Record Examination (GRE). The Quantitative + Verbal scores combined should be at least 1100 using the prior GRE scale (Verbal minimum is 450 and Quantitative minimum is 650) or 301 using the current GRE scale (Verbal minimum is 150 and Quantitative minimum is 151), however, this does not guarantee admission.

Admission Requirements (MS to PhD):-
Completed an MS degree with thesis in Chemical, Environmental, or Civil Engineering with an Environmental emphasis with a GPA of 3.5 on a 4.0 scale from an ABET- accredited engineering program or a foreign equivalent thereof. A copy of the title page, signature page, and thesis abstract as well as excellent letters of reference from faculty familiar with the research must be submitted with the application.

The minimum TOEFL score required is 79 for the internet-based test.
The minimum TOEFL score for the paper-based (pBT) exam is 550 or higher.
The minimum TOEFL score for the new revised paper-based exam is: Reading 20, Listening 20, and Writing 20.
The minimum IELTS score required is an overall score of a 6.5.