Oklahoma. Volunteer opportunities: The Eufaula Lake Project office seeks out volunteer services constantly. Eufaula Lake encompasses 102,000 acres of water and operates 12 serviceable campgrounds. Anyone can become a volunteer at Eufaula Lake. Persons of all ages and abilities have something valuable to contribute. Applicants under 18 must have parental or legal guardian consent. Full-time campground volunteers work 24 hours a week for payment of a campsite in the respective park where they are volunteering at. If you are interested in volunteering at Eufaula Lake, you can contact the Eufaula Lake Project Office at: 918-799-5843 and speak with Danny Spradlin.