Congratulations on being interested in the area of environmental science. It takes a special person to enter this field and meet the demands which this career area presents. The first step is to get to know yourself to see if you share the personality traits which make others working in environmental science successful. The next step is doing networking to meet and talk to and possibly shadow environmental scientists to see if this is something that you really want to do, as a career area could look much different on the inside than it looks from the outside.
Ken recommends the following next steps:
That's based on perception. It's tough if you are not fond of the position (I would advise you be a lover of the outdoors) . It does take dedication and patience as does most science fields. Water testing in general can be stressful due to it's importance as well the tediousness of the task. Rise to the challenge if it's something your interested in and give it a chance