Wastewater Capacity

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plans at 12 mile 350x300Union County Water owns and operates five wastewater treatment plants, or Water Reclamation Facilities (WRF). Each of these facilities treat wastewater from specific drainage areas:

  • Twelve Mile Creek (our primary wastewater treatment plant),
  • Crooked Creek;
  • Tallwood Estates;
  • Grassy Branch; and
  • Olde Sycamore.

Our staff closely monitors the wastewater treatment capacities at our facilities. Permitting capacity is evaluated using the actual plant flows plus the permitted/obligated flows. The data below is updated monthly. The data captured for a given month is published approximately 4-6 weeks after it has been collected, to allow time for processing and reporting.

 

Facility

Permitted Capacity (MGD)

Actual Average Daily Flow* (MGD)

Actual + Permitted Obligated Flows (MGD)

Percent of Permitted Flow Used

Twelve Mile Creek

7.5

5.253

6.682

89.1%

Crooked Creek

1.90

1.129

1.686

88.7%

Olde Sycamore

0.15

0.039

0.039

26.0%

Tallwood

0.05

0.022

0.022

44.0%

Grassy Branch

0.05

0.043

0.044

88.0%

*12 month rolling average through September 2025.