Yes, I think she is getting enough water in the puppy chow.
If she were mine, I would check her gums every few hours.
I would also have an eye dropper or syringe on hand just in case.
Then if her gums feel dry you can give her water, puppy milk replacer, low sodium broth, or pedilatye with a syringe or eye dropper.
In general to maintain hydration, a dog would need to intake 1 ml of fluid per each pound of dog per hour.
For example, a 10 pound puppy would need to take in 10 mls of fluid per hour.
The fluid in the food counts.
Also monitor her urine. If the urine is dark yellow, and not dilute and clear, she is not getting enough fluid.