Water-quality, streambed-sediment, and biological data from the Clark Fork-Pend Oreille and Spokane River Basins, Montana, Idaho, and Washington, 1998-2001

The water quality management tool RIONET for river basins has been developed with regard to the EU Water Framework Directive. The management tool can simulate the water quality in catchment basins not only in the dimension of a single river but in whole river networks. A submodel of the IWA River Water Quality Model No. 1 is used in RIONET. The river model is based on the assumption that self purification processes in the river takes place both in the benthic biofilm and the bulk water phase. Laboratory experiments with sediment cores underline the major role of the benthic biofilm. The input parameters of the management tool such as volumetric flow rates from waste water treatment plants and flow velocities and discharge in the main river and its tributaries can be loaded directly from geographic information systems (GIS). The subcatchment basin of the river Bode in Saxon Anhalt was used for test runs of RIONET.

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Geohydrology and water quality of stratified-drift aquifers in the lower Merrimack and coastal river basins, southeastern New Hampshire

10.3133/wri914025 ◽

1992 ◽

Keyword(s):

Water Quality ◽

New Hampshire ◽

River Basins ◽

Coastal River

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Assessment of the Water Quality of Jatiluhur Reservoir, the Downstream of Citarum Cascade River, Using Selected Physico-Chemical Parameters

Jurnal Rekayasa Kimia & Lingkungan ◽

10.23955/rkl.v10i1.2171 ◽

2014 ◽

Vol 10 (1) ◽

Author(s):

Lieza Corsita ◽

Arwin Arwin ◽

Barti Setiani Muntalif ◽

Indah Rachmatiah Salami

Keyword(s):

Water Quality ◽

Dissolved Oxygen ◽

Water Level ◽

Hydrological Regime ◽

Quality Parameters ◽

Biological Data ◽

Chemical Parameters ◽

Stream Flows ◽

Physico Chemical

Physico-chemistry and biological data were investigated from October 2010 until April 2011 of Jatiluhur reservoir. A total of six sampling stations were selected for this study. The discharge and hidrological data were obtained from Perum Jasa Tirta II Jatiluhur. The results showed that the hydrological regime in the reservoir Jatiluhur was affected by global phenomenon La Nina events in 2010 and early in 2011. Stream flows were determined during sampling to range from 78 to 482.5 m3/s. The water quality findings were as follows: pH (6.93-8.81), temperature (26.37-30.6°C), dissolved oxygen (0.733-5.2 mg/l), conductivity (2.45-233µmhos/cm), COD (7.36-96.9 mg/l), turbidity (4.063-65.6 NTU), total phosphate (0.002-0.324 mg/l), total nitrogen (0.99-5.96 mg/l), chlorophyl (2.237-43.37 mg/m3), visibility (30-160 cm). The eutrophication was pronounced at Jatiluhur reservoir. Canonical Correspendence Analysis found that some water quality parameters correlated positively with the discharge and the water level.

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