A piece of Hero advice: don't do a direct conversion. Figure out what they do and build the best mechanic for it. GURPS has changed so much since those books have come out, it's best to rebuild them for the new rules than try to convert them--Otherwise you start running into problems like "Invulnerability."
You should separate the "Water Power" limitation into both Super and Elemental as "Water Power" is a descriptive term and not a limitation. We know all of her abilities fall into the "Water Power" bucket, but by not defining them by existing traits leaves it all open to interpretation.
Keep in mind that for Environmental is specific when it says "However, your ability is only effective if the subject is in a particular environment . . . and the GM can alter its effects if the environment you’re attempting to manipulate is at all unusual."
Also read the example--a kiddy pool isn't going to do much for those abilities. For her, it fits fine, but I've seen enough people try to claim a flowing sink would count for an Environmental effect.
Body of Water, in 4e, includes Pressure Support 3. You'll probably also want some increased range for underwater only, the base water cannon has a ½D range of 1 underwater, and the jet has a ½D range of 5--moth max out at 10 yards underwater.
You should separate the "Water Power" limitation into both Super and Elemental as "Water Power" is a descriptive term and not a limitation. We know all of her abilities fall into the "Water Power" bucket, but by not defining them by existing traits leaves it all open to interpretation.
Keep in mind that for Environmental is specific when it says "However, your ability is only effective if the subject is in a particular environment . . . and the GM can alter its effects if the environment you’re attempting to manipulate is at all unusual."
Also read the example--a kiddy pool isn't going to do much for those abilities. For her, it fits fine, but I've seen enough people try to claim a flowing sink would count for an Environmental effect.
Body of Water, in 4e, includes Pressure Support 3. You'll probably also want some increased range for underwater only, the base water cannon has a ½D range of 1 underwater, and the jet has a ½D range of 5--moth max out at 10 yards underwater.