| 21. | One major source of pollution for Onondaga Lake is sewage wastewater.
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| 22. | Ongoing wastewater research sometimes raise concerns about pathogens in the water.
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| 23. | The French System combines primary and secondary treatment of raw wastewater.
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| 24. | As such, further treatment of the wastewater is often required.
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| 25. | Anaerobic lagoons are built as part of a wastewater operation system.
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| 26. | Wastewater treatment systems could also favourably be added to this operation.
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| 27. | The Palestinian Authority has not developed any significant wastewater treatment facilities.
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| 28. | The fixed fee also depends on the volume of wastewater discharged.
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| 29. | In 2013 the Taboada wastewater treatment plant was commissioned in Lima.
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| 30. | Warm wastewater was used as a source for local swimming pool.
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