If you could say which part of the country you are in, even the name of the state park it would be easier to answer your question. If you could add that information I could update this with a more accurate answer. Since we don't know what type of fish are in the reservoir, your best bet is to visit the local fishing store closest to the reservoir. This is better than going to most chain stores because the small shops are generally more customer oriented. They will have information about the type of fish that live there, the type of equipment needed including rods, reels, baits and lures. You may get that from the chain store as well. The only thing you will need to watch there is that they don't sell you more expensive gear than you need. There is a difference between equipment, but unless he wants to fly fish, you should be able to completely outfit your husband with everything he will need for under $100 if budget is any type of an issue. UPDATE: The waters in the park sustain warm water species. This means that your husband is going to be able to catch bass, carp and panfish. This may or may not include trout and other species. These statements are from what I am able to verify online. It sounds like your husband may somewhat new to fishing, my recommendation about a 6 foot, medium action spin casting combo strung with 8 or 10 lb test line. If he is more experienced, you can go with a bait-casting combo with the same test line. You can go with brands like Shakespeare (Ugly Sticks are good, solid affordable rod) or Zebco. There are many other affordable options available as well