Contact Us

At Big Sioux Community Water System, Inc., our commitment is to provide the community with superior service. Please feel free to send us an email using the contact form below or give us a call at 605-997-2098. As your water provider, we welcome your feedback and appreciate your business.

Big Sioux Community Water System
23343 479th Ave
Egan, SD 57024-6438



Office Hours:
8:00 a.m. to 4:30 p.m.


After Hours:

Our office hours are 8:00 a.m. to 4:30 p.m. every weekday except holidays. All after-hours calls will be answered by a commercial 24-hour answering service and will be relayed to personnel on call in case of a water outage or other emergencies. After hours, if you cannot get through using 605-997-2098, you may call our answering service directly at 1-888-487-5891.

Please remember that if you call after normal business hours, our answering service is there only to relay emergency messages to our servicemen on call. The answering service personnel are not experienced water operators and many times do not know all the details regarding a major outage. Please keep the after-business-hours calls limited to water outages, abnormally low pressure, leaks, or other emergencies. All questions pertaining to billing, moves, water quality, etc. should be handled during normal business hours.

E-mail correspondence is maintained in accordance with applicable provisions of State law and may be considered public records. Public disclosure of your communication may be required.