Water-quality data from 2002 to 2003 and analysis of data gaps for development of total maximum daily loads in the Lower Klamath River Basin, California

A computer program based on expert system software was developed and proposed as a prototype model for water management to control eutrophication problems in receiving water bodies (Suzuki etal., 1988). The system has several expert functions: 1. data input and estimation of pollution load generated and discharged in the river watershed; 2. estimation of pollution load run-off entering rivers; 3. estimation of water quality of receiving water bodies, such as lakes; and 4. assisting man-machine dialog operation. The program can be used with MS-DOS BASIC and assembler in a 16 bit personal computer. Five spread sheets are utilized in calculation and summation of the pollutant load, using multi-windows. Partial differential equations for an ecological model for simulation of self-purification in shallow rivers and simulation of seasonal variations of water quality in a lake were converted to computer programs and included in the expert system. The simulated results of water quality are shown on the monitor graphically. In this study, the expert system thus developed was used to estimate the present state of one typical polluted river basin. The river was the Katsura, which flows into Lake Sagami, a lake dammed for water supply. Data which had been actually measured were compared with the simulated water quality data, and good agreement was found. This type of expert system is expected to be useful for water management of a closed water body.

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Long-Term Agroecosystem Research in the Central Mississippi River Basin: Goodwater Creek Experimental Watershed and Regional Nutrient Water Quality Data

Journal of Environmental Quality ◽

10.2134/jeq2013.12.0518 ◽

2015 ◽

Vol 44 (1) ◽

pp. 37-43 ◽

Cited By ~ 11

Author(s):

R. N. Lerch ◽

N. R. Kitchen ◽

C. Baffaut ◽

E. D. Vories

Keyword(s):

Water Quality ◽

River Basin ◽

Mississippi River ◽

Quality Data ◽

Mississippi River Basin ◽

Water Quality Data

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Water quality monitoring: the basis for watershed management in the Oldman River Basin, Canada

Water Science & Technology ◽

10.2166/wst.2006.308 ◽

2006 ◽

Vol 53 (10) ◽

pp. 153-161 ◽

Cited By ~ 10

Author(s):

C.W. Koning ◽

K.A. Saffran ◽

J.L. Little ◽

L. Fent

Keyword(s):

Water Quality ◽

Point Source ◽

River Basin ◽

Watershed Management ◽

Health Concern ◽

Quality Data ◽

Oil And Gas Development ◽

Water Quality Data ◽

Oldman River Basin ◽

Oldman River

The Oldman River flows 440 km from its headwaters in south-western Alberta, through mountains, foothills and plains into the South Saskatchewan River. Peak flows occur in May and June. Three major reservoirs, together with more than a dozen other structures, supply water to nine irrigation districts and other water users in the Oldman basin. Human activity in the basin includes forestry, recreation, oil and gas development, and agriculture, including a large number of confined livestock feeding operations. Based on the perception of basin residents that water quality was declining and of human health concern, the Oldman River Basin Water Quality Initiative was formed in 1997 to address the concerns. There was limited factual information, and at the time there was a desire for finger pointing. Results (1998–2002) show that mainstem water quality remains good whereas tributary water quality is more of a challenge. Key variables of concern are nutrients, bacteria and pesticides. Point source discharges are better understood and better regulated, whereas non-point source runoff requires more attention. Recent data on Cryptosporidium and Giardia species are providing benefit for focusing watershed management activities. The water quality data collected is providing a foundation to implement community-supported urban and rural better management practices to improve water quality.

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Assessment of the Klang River Quality Using the Water Quality Indices

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.599.237 ◽

2012 ◽

Vol 599 ◽

pp. 237-240 ◽

Cited By ~ 1

Author(s):

Faridah Othman ◽

Mohamed Elamin Alaa Eldin

Keyword(s):

Water Quality ◽

River Basin ◽

Water Quality Index ◽

Quality Index ◽

River Mouth ◽

Peninsular Malaysia ◽

Point Sources ◽

Quality Data ◽

Commercial Activity ◽

Water Quality Data

The Klang river basin is located within the state of Selangor and Kuala Lumpur, Malaysia. The Klang River drains an area of 1,288 km2 from the steep mountain rain forests of the main Central Range along Peninsular Malaysia to the river mouth in Port Klang, covering a distance of 120 km. It originates from the northern part of Selangor, drains the Klang Valley, and finally discharges itself into the Straits of Malacca. The pollution discharges for various locations along the river basin was obtained from the Water Quality and GIS group. The pollutants can come from point sources (PS) such as industrial wastewater, municipal sewers, wet market, sand mining and landfill. Pollutants can also come from non-point sources (NPS) such as agricultural or urban runoff, and commercial activity such as forestry, and construction due to rainfall event. Mathematical–computational modeling of river water quality is possible but requires an extensive validation. Besides it requires previous knowledge of hydraulics and hydrodynamics. To overcome these difficulties, a water quality index (WQI) was developed. The water quality index (WQI) is a mathematical instrument used to transform large quantities of water quality data into a single number. The purpose of this research is to classify the upstream and downstream of the Klang main river based on WQI value.

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