Water Treatment Plants
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The City of Fort Worth purchases its raw water (untreated water received directly from a river, reservoir or lake) from Tarrant Regional Water District (TRWD). The surface water comes from six area lakes:
The Water Department's Production Division provides drinking water to Fort Worth's residents and to more than 30 surrounding communities. The water is collected and pumped from the lakes to a raw water pump station located in each of the four water treatment plants. Currently the City of Fort Worth has the capacity to treat about 485 million gallons of water per day (mgd):
Treatment Plant
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Million Gallons a Day
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Holly WTP (north & south combined)
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180 mgd
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Rolling Hills WTP
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200 mgd
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Eagle Mountain WTP
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105 mgd
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To view information related to how much water the City of fort Worth pumps and how much residents use on a daily basis please visit the Water Usage web page.
Water Treatment Process
Once the water is pumped into the raw water pump station it is then carefully treated to remove harmful organisms and substances. The steps in the treatment process are outlined below:
Chemical Addition
Chemicals are addred to kill germs, improve taste and odor and to help setle solids in the water. These chemicals are mixed together.
Coagulation and Flocculation
The chemicals cause particles or solids in the water to cling together or coagulate. As the particles begin to stick and form larger particles, they are referred to as floc, and the process flocculation.
Sedimentation
In this stage, floc particles flow into the sedimentation basin, settle to the bottom and are removed from the water.
Filtration
After sedimentation, water flows through filters made of sand, gravel and coal. These filters remove any remaining particles left in the water.
Disinfection
A small amount of chlorine is addee to kill any remaining germs and to keep the water safe as it travels to the public. Fluoride is also added in this step.
Clearwell Storage
Water is placed in a tank to allow time for the chlorine to mix and disinfection to take place. Water is then pumped nto the distribution system through more than 2,400 miles of pipeline.