Laserfiche WebLink
<br />I <br /> <br />I <br /> <br />VII -14 <br /> <br />demand (BODe) and the nitrogenous biochemical oxygen demand (BOOn), <br />The BODe is estimated by multiplyin9 the five day oxygen demand <br />(BODs) by 1.4. The BODn is estimated by determining the quantity <br />of ammonia discharged and mUltiplYing this value by 4.6. <br /> <br />The waste load allocation for all sewage treatment facilities <br /> <br />discharging into streams classified as Effluent Limited segments <br /> <br /> <br />were determined by assuming an effluent quality of 20 mgll sus- <br /> <br />pended solids, 20 mg/l BODs' and the current average ammonia con- <br />centration for each facility. Each of these concentrations was <br /> <br />then multiplied by a flow for each facility which was determined <br /> <br /> <br />by mUltiplYing the present average plant discharge by a projected <br /> <br />1990 growth factor. <br /> <br />into surface waters classified as Water Quality segments were deter- <br /> <br />The UOD load allocations for treatment facilities discharging <br /> <br />mined with the dissolved oxygen model and based on the assimilative <br /> <br />capacity of the river assuming a B2 water quality classification. <br /> <br />Due to the background D.O. deficit in the river it is not Possible <br /> <br />to determine load allocations assuming a B1 quality classification <br /> <br />" <br /> <br />for the river. The Suspended solids load was determined by assuming <br /> <br />.'; <br /> <br />effl uent flow. <br /> <br />a concentration of 20 mgll and multiplying this concentration by the <br /> <br />r.' ," <br />r: ,(j",;J <br />"v'''' <br />