Utility Providers for Siena Round Rock Residents
Water + Sewer
Jonah Special Utility District is the water and sewer provider for Siena Round Rock residents. To apply for service, contact the office by phone -or- you can print out the Service Application and Agreement (if available). You can find that and more information in this “Siena New Customer Information Form“. Jonah can be found at 4050 FM 1660, Hutto, TX 78634 and 512-759-1286.
Siena residents receive natural gas provided by Atmos Energy. To start or transfer service, call the Customer Contact Center. 888.286.6700, Monday – Friday, 7 a.m. to 6 p.m. (central). The connection fee is $65.
Multiple providers and plans are available to Siena Round Rock residents. These plans can be evaluated and subscribed to on PowerToChoose.com. Oncor is the power delivery company for Siena while the resident chooses the provider.