Lawton Water Authority

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The Lawton Water Authority (Authority) located in Comanche County serves 27,393 sewer customers and 28,090 water customers. According to the 2010 U.S Census the population was 96,867.

The Authority’s current treatment process is tertiary. The design average daily flow is 18 MGD and the receiving waterbody is Nine Mile to Cache Creek East which is listed on the 303(d) list for enterococcus, escherichia coli, and turbidity.

The Authority's existing plant operates a number of facilities which had their initial elements commissioned in the early 1970's. Since that time the plant has experienced several rounds of rehabilitation and upgrades and has been mostly compliant over the facility's history. A significant percentage of the operating facilities are nearing the end of their useful life and are struggling to meet treatment goals. The Wastewater Treatment Plant (WWTP) has failing equipment causing it to be out of compliance with OPDES permit requirements, and is under consent order for permit violations for fecal coliform, ammonia, total suspended solids, total residue chlorine, biological oxygen demand, and E.coli. In order to meet the requirements the Authority will use the funds to rehabilitate or replace failing components of the WWTP with new primary and secondary clarifiers, as well as selector zones in the aeration basin that can be used to improve settling characteristics if required. This process resolves the existing hydraulic and flooding issues and allows for future expansion of the primary and secondary clarifiers, additional aeration basin volume, as well as selector zone volume to the aeration basin for future biological nutrient removal.

These improvements will address the unpermitted discharges and improve the quality of water to the creek and the community.