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Case Studies

Extended Aeration Enviro-Aire Package Plant Meets Expanded Permit Parameters and Flows

Hattiesburg (MS) Laurel Regional Airport Authority had an undersized 20,000 GPD wastewater
treatment system servicing the airport and local business park. Treated effluent discharges to a
Pascagoula River Basin tributary. When the Authority applied for an updated permit for an increased
flow of 50,000 GPD, the State conducted a waste load allocation study and imposed more stringent
permit parameters including increasing BOD from 30 mg/L to 14 mg/L, 6.0 mg/L dissolved oxygen level and 2.0 mg/L total ammonia levels, and nutrient monitoring.

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Chambers

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EZflow

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Tanks

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ATL

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Aquaworx

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Delta Treatment Systems

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Presby Environmental, Inc.

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