System Statistics

Mni Wiconi Rural Water Supply

Service Area: 12,500 Square Miles
Total New Pipeline Miles: 4,200 Miles
Population Served: 52,000
Planning Through Construction: 1988-Present
Project Sponsors:
     Oglala Sioux Tribe
     Rosebud Sioux Tribe
     West River/Lyman Jones, Inc.
     Lower Brule Sioux Tribe


Intake and Water Treatment Plant

Water Supply: Missouri River below Oahe Reservoir
Intake Capacity: 14 MGD
Treated Water Capacity: 13.4 MGD
Major Unit Process:
     Barrel Slotted Intake Screens
     42-inch Buried Intake Pipeline
     Intake Wetwell and Pump Station
     Preoxidation
     Flocculation
     Sedimentation
     Filtration
     Disinfection
     High Service Pumping
     Sludge Lagoons


OSRWSS Core Pipeline

12-inch to 24-inch High-Pressure Pipe
     (coated metallic pipe and PVC)
185 Miles Designed and Constructed
Corrosion Protection
Supervisory Control and Data Acquisition System (SCADA)
Pump Stations


Operation Unit Facilities for:

Rosebud Indian Reservation
West River/Lyman Jones, Inc.
Lower Brule Indian Reservation

Main Distribution Pipeline
Service Pipelines
Service Connections
Wells
Water Storage Reservoirs
Pump Stations

365 Miles of Main Distribution Pipeline 3"-14"
330 Miles of Service Pipeline 2"
1,525 Service Connections
15 Water Supply Wells 50 gpm-300 gpm
19 Steel Water Storage Reservoirs 90,000 gal-500,000 gal
21 Pump Stations 100 gpm-1,400 gpm

Site Under Construction

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605-223-9292

Monday - Friday 
8AM - 4:30PM CT

28542 Trails End Rd

Fort Pierre, SD 57532

P.O. Box 1209
Fort Pierre, SD

© 2019 Copyright OSRWSS MNI WICONI WATER TREATMENT PLANT/CORELINE