A great way to frame your response here is to talk about the past, present, and then the future in regard to who you are and who you aspire to be in the future. This is the chance for your interviewer to get to know you as a person, so make sure to discuss your family, your hobbies, and your internal motivators to be the best you can be. Finding common ground is important for your interview, so don't hesitate to open up about yourself.

"If I were to join this team as your next water treatment operator, you'd be getting a fun and hardworking individual who loves to work for a great cause. I grew up on a farm in the heart of the country and met my wife a few years ago as she was graduating from college. Her family is from this area, where she was raised, and we are excited about the opportunity to come here. Outside of work, I am an avid outdoor enthusiast. I spend as much time in the woods as possible, both hunting and trapping, and am excited about those opportunities here. I also love to cook and grill, with smoking meat being a new hobby I picked up in the last few years. I'd be more than happy to answer any questions you may have for me throughout the interview."