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Septic seepage and failed package deal vegetation: Seepage from failed septic tanks or their leach fields and emissions from badly operating package sewage remedy plants may possibly add substantial amounts of nutrients and organic matter, producing biological oxygen demand (BOD).In contrast to lakes, exactly where DO ranges are most probably to fl

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BOD measurement involves getting two samples at Every internet site. One particular is tested right away for dissolved oxygen, and the second is incubated in the dark at twenty C for five days after which you can tested for the quantity of dissolved oxygen remaining. The main difference in oxygen concentrations concerning the 1st test and the secon

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