Photo of road construction  ©Amatucci Photography

City Services

Water Treatment – History

Beginning in 1904, the Newblock pumping station drew water from the Arkansas River and distributed the untreated water to Tulsa homes and businesses. This pumping station was located in what is now Newblock Park. The water was salty and full of silt as well as gypsum.

(One of the tributaries of the Arkansas River is the Salt Fork, which flows across north central Oklahoma to join the Arkansas at the eastern border of Kay County. This north-central Oklahoma region is famous for the Great Salt Plains Wildlife Refuge as well as the gypsum rock layers that formed Alabaster Caverns.)

As Tulsa grew, city fathers realized that this river water was unacceptable. They needed a new source for water if the city was to grow. The City purchased land near the city of Spavinaw, where Spavinaw Creek flowed. In the early Twenties, they built a five-story dam to create a reservoir. Engineers constructed a 50-mile long pipeline to carry the water to Tulsa’s new Mohawk Water Treatment Plant.

Briefly, the Mohawk Plant was expanded and then completely refurbished in the 1990s. The plant has the capability of treating 100 million gallons of water per day.

As the population of Tulsa continued to grow, the city purchased the rights to a new Corps of Engineers Lake, Lake Oologah, northeast of Tulsa. They built a second treatment plant, the A.B. Jewell Water Treatment Plant, in 1971. Water from Lake Oologah travels to the A.B. Jewell Plant through a flow line. This plant can treat 120 million gallons of water per day.

Tulsa’s water supply is more than adequate to meet today’s needs. Our current facilities can treat up to 220 million gallons per day. Maximum historical use is about 192 million gallons per day, reached on August 10, 2006.

 

Water Usage Chart
Tulsa's Water Use History, 1940 - 2005

Since 1970:

A second, modern water treatment plant was constructed to reduce the strain on the now almost 50-year-old Mohawk plant. The A.B. Jewell Water Treatment Plant came on-line in 1973, initially processing water from Spavinaw Lake, but currently processing mostly water from Lake Oologah.

In 1999, a new water treatment plant replaced the original 70-year-old Mohawk plant. The New Mohawk plant is located just south of the original plant and incorporates many of the historic buildings with state-of-the art water treatment facilities that will be able to provide Tulsa with clean and reliable drinking water into the next century.

The new Mohawk Water Treatment Plant has a capacity of 100 MGD, and a more efficient mixing system than the old plant. More importantly, many of the old plant's structures are over 60 years old and are reaching the end of their useful life. Over this period, the Mohawk plant has consistently and reliably delivered high-quality water that met or exceeded water quality standards. In 1992, the Oklahoma Water & Pollution Control Association named Mohawk "Water Plant of the Year".

 
Mohawk Plant Facts
Completed: 1924
Architecture:
  American Renaissance
Capacity: 90 MGD
Clearwell: 2 MG
Filtration Bed: 30 inches
Filter sand/anthracite

New Mohawk Facts
Completed: 1999
Architecture:
 American Renaissance
Cost: $75 million
Capacity: 100 MGD
Clearwell: 11 MG
Filtration Bed: 72 inches
Filter: anthracite