Food/Lodging
The best (and really only) place to stay in Río Limpio is at the Cabañas Turisticas (Tourist Cabins). When you arrive in town, ask someone to help you find Rivera -- he's a local artisan and the current manager of the cabañas and will help get you settled in. If Rivera isn't in town when you arrive, just ask someone where the cabañas are and who to talk to and they will help you get connected.
Rivera will also connect you with a cook who will cook your meals for you at the restaurant that's located by the Cabañas.
The cost to stay and eat at the cabañas is low -- expect to spend around US$10 per person per day.
Communication
Until recently, Río Limpio was outside of the reach of any modern communication system--no telephones, to cell phones, and no Internet. In the past couple years, however, the situation has changed with the addition of a government and corporation-sponsored Internet center that operates off of a generator and satellite connection. There are also one or two solar-powered satellite phones in town that use the standard Dominican calling cards or change.
Electricity & Water
Electricity is a sporadic commodity in Río Limpio. Ideally, the planta (generator) runs every evening for a few hours. However, with the recent spike in gasoline prices and an occasional break down of the planta, don't expect electricity on a regular basis. If you are bringing any electronic devices, bring plenty of batteries.
Water is plentiful in Río Limpio, and the government built houses all have running water and sewer systems. Occasionally, the water line breaks and shuts down for a few days or longer. The water source is the river that passes through the valley and the water is not filtered or treated in any way. Because of this, either filter or boil any tap water that you need to drink. There is a vendor or two in town who will sell you a 5 gallon container of water, which may be worth it if you're staying for a couple days.