ground water quality standards

... Code Page WATER QUALITY STANDARDS carcinogenic criterion for a substance based on consumption of organisms and potable water from the waterbody shall apply at the point of the public water system ... surface water quality for public water supply In addition to subsections (a) and (d), the following criteria are established to protect the surface water quality at the point at which water is ... WER (4) Incorporate the site-specific modification into the water quality standards during the next revision of the water quality standards if it is for a site-specific modification to a criterion...

Ngày tải lên: 29/03/2014, 14:20

... the quality of groundwater resources, as a basis to guide for the different purposes of water use 1.2 Terminology Ground water in this regulation is water occurring in aquifers under the ground ... National technical regulation on ground water quality GENERAL PROVISIONS 1.1 Scope of regulation 1.1.1 This regulation stipulates maximum value of ground water quality parameters 1.1.2 This regulation ... the ground TECHNICAL REGULATION Maximum value of ground water quality parameters are specified in Table Bảng 1: Maximum value of ground water quality parameters No Parameter Unit Maximum value...

Ngày tải lên: 18/05/2016, 15:05

... Water Quality Guidelines, Standards and Health: Assessment of risk and risk management for water- related infectious disease This page intentionally left blank Water Quality Guidelines, Standards ... (WHO) Water Quality: Guidelines, Standards and Health Edited by Lorna Fewtrell and Jamie Bartram Published by IWA Publishing, London, UK ISBN: 900222 28 1.1 Water Quality: Guidelines, Standards ... drinking water quality As with all the water- related guidelines the primary aim of the GDWQ is the protection of human health, and to serve as a basis for development of national water quality standards...

Ngày tải lên: 28/03/2014, 23:20

... on water resources WVater resources consist of surface water and groundwater The two are interdependent; surface water is the source of water supply for groundwater, and in many instances groundwater ... water quality models; consequently, understanding water quality models will make it easier for users to become knowledgeable about groundwater and air quality models For more information on groundwater ... projects requiring water quality predictions Instruments for predicting or simulating water quality are called water quality models These models predict or simulate receiving water quality resulting...

Ngày tải lên: 23/09/2012, 16:02

... parameters and concentration of substances in industrial waste waters are specified in available current TCVNs Table _ Industrial waste water Limit values of parameters and maximum allowable concentration ... 2.6 Industrial waste water containing the values of parameters and concentrations of substances which are greater than...

Ngày tải lên: 10/04/2013, 09:48

... meeting requirements of water quality to be used for domestic water supply (water intaken for waterworks)? - Which zones (or sections of the rivers) meeting requirement of water quality for safe and ... method - Water quality zoning of rivers and lakes based on the obtained models and analytical data of water quality - Preparation of digital water quality zoning maps - Study and proposal of water ... NSF Quality Index, 2006 King Country, Water Quality Index for Streams and River, 2007 Nguyen Van Hop, Hoang Thai Long, Nguyen Hai Phong, Thuy Chau To, Use of Water Quality Indexes for Water Quality...

Ngày tải lên: 25/04/2013, 08:23

... Journal of Water and Environment Technology, Vol.1, No.2, 2003 Conclusion The experiment on improving water quality was carried out by removal of SS and biological filtration in the closed water body, ... 1000-ton of closed water body and a raft of 20×20 m2 were prepared at Tokiwako Lake The maximum water depth of experimental area is 3.4 m, minimum is 1.4 m, and average is 2.3 m Water depth changes ... of flow third tank Figure Schematic diagram for improvement of water quality by removal of SS and biological filtration in closed water bodies a a: screw motor Ｍ b: biological carrier c: micro-bubble...

Ngày tải lên: 05/09/2013, 08:40

... concentrated oxygen water on the phosphorus release Compared with the sediment soaked in bottom water and in nitrogen-aerated water, the sediment contacted with high concentrated oxygen water released ... concentrated oxygen water achieved 10 mgO2/L Measurement of DO concentration and water temperature confirmed that the high concentrated oxygen water didn’t destroy the thermocline of the water body and ... condition of experiment The water of bottom layer (after the treatment by high concentrated oxygen dissolver)+soil sediment The water of bottom layer ＋soil sediment The water of bottom layer (after...

Ngày tải lên: 05/09/2013, 08:40

... and the Attenuation by Rainwater Sewage from the study area is discharged together with rainwater Therefore, attenuation by rainwater seemed to affect the sewage water quality Average annual rainfall ... were faster than those in the dry season at all points due to the rainwater Analytical Method For water samples, 14 water quality indicators and heavy metals were determined On the other hand, ... compounds came from domestic wastewater Most water quality indicators in rainy season were lower than those in dry season due to the attenuation caused by rainwater Concentrations of SS and heavy...

Ngày tải lên: 05/09/2013, 09:08

... of the Root Zone Water Quality Model using data from the Iowa MSEA., Agronomy J Vol 91:192-200 Jaynes, D.B., Hatfield, J.L, and Meek, D.W (1999) Water quality in Walnut Creek watershed: Herbicides ... Hatfield, J.L., Pfeiffer, R.L., and Morrow, A.J (1999) Water quality in Walnut Creek watershed: Herbicides in soils, subsurface drainage, and groundwater., J Environ Qual Vol.28:35-45 Reungsang, A ... the ARS Root Zone Water Quality Model., Trans ASAE Vol.36:369-380 Ahuja, L.R., Ma, Q.L., Rojas, K.W., Boeston, J.J.T.I., and Farahani, H.J (1996) A field test of Root Zone Water Quality Model-pesticide...

Ngày tải lên: 05/09/2013, 09:08

... the water environment in an agricultural watershed Simulating the appropriate location of artificial wetlands can provide policymakers with the information necessary to set the target water quality ... Application of Water Quality Tank Model Classified by Land Use to Nitrogen Load Reduction Plans Trans of JSIDRE, No.224, 97-103 (abstract in English) Kuroda H (1998) A Method of Water Quality Management ... second largest lake in Japan Its water resources are used for municipal, domestic, industrial and irrigational purposes Despite the countermeasures for improving water quality, the annual average...

Ngày tải lên: 05/09/2013, 09:08

... migration may adversely affect the water quality in the aquatic environment However, sufficient data on water quality and pollutant loads in under-populated watersheds have not been collected, ... analyze the long-term trends in the water quality of an under-populated watershed for the period from 1992 to 2006 and to evaluate the relationship between the water quality and precipitation This ... emissions originating from domestic wastewater were expected to decrease during this period Water quality analysis The methods for analyzing the water quality of the collected samples were in...

Ngày tải lên: 05/09/2013, 10:15

... potential was discussed MATERIALS AND METHODS Collection of Water Samples Water samples from rivers were collected mainly at the official water quality monitoring sites set up by the local government ... CONCLUSIONS In this study, the water quality of environmental waters based on aquatic ecotoxicity was investigated using a three-species ecotoxicity test (algae, daphnia and fish) Water samples were collected ... for fish in each acute toxicity test were used as water quality indexes Of the monitoring sites evaluated in this study, 38% showed good water quality based on long-term ecotoxicity for all the...

Ngày tải lên: 05/09/2013, 10:15

... abundant ground water and existing water circulation is a very complex system regarding water quantity and its influence on water quality Subsurface infiltration of water and natural outflow of ground ... basin cannot be calculated using the concentrations of water quality parameters In addition, the influence of ground water circulation on water quality was also considered Therefore, pollution loads ... influencing factors on the water quality had been determined CONCLUSION The water quality of six rivers flowing in the Hadano basin was analyzed spatially by monitoring the water quality of each river...

Ngày tải lên: 05/09/2013, 10:17

... on water resources WVater resources consist of surface water and groundwater The two are interdependent; surface water is the source of water supply for groundwater, and in many instances groundwater ... The water quality data sets required for calibration and verification of the water quality model are large and comparable to the data sets required for the water movement component These water quality ... develop a water management plan for a large number of discharges, the model must predict the receiving water quality for these discharges TYPICAL WATER QUALITY MODELAPPLICATIONS Water quality models...

Ngày tải lên: 24/10/2013, 15:20

... HealthAdministration;BritishStandards, 6068 ,Water Quality Part 2; German IndusticalStandard Methodsfor the Examinationof o iS Water, Wastewaterand Sludge, DtIN s8404 38409;InternationalStandards OrganizationWater Quality ... the receiving water Receiving water depth stratification is an important factor in determining water quality in the receiving water and, if it exists, must be addressed in the water quality models ... densities, etc The water quality objective defines the model prediction requirements The time period for the modeling must be compatible with the water quality objective for the water quality parameter...

Ngày tải lên: 24/10/2013, 15:20

... OUTPUTS A water quality- monitoring network for the MD Qualified staff members (2 MSc., and 24 lab technicians) specializing on water quality management, water quality monitoring, water quality ... establishment a surface -water quality network Enhancing the co-operation between eleven DOSTEs and CTU in surface water quality monitoring by establishment a surface water quality network in which ... Vietnam: Water Resources Sector Review Washington 13 ANNEX Figure Network of monitoring waterways for surface -water quality in MD 14 Figure Network of sampling points for surface -water quality...

Ngày tải lên: 04/11/2013, 20:15

... flow water (quantity, quality) Irrigation water Flooding water Agricultural wastewater (quantity, quality) River transportation Water supply Fisheries Urban and Industrial wastewater (quantity, quality) ... the lower groundwater table lead to a serious shortage of fresh water for rice cultivation and domestic drinking water Salinity intrusion areas expand throughout the MD However, saltwater intrusion ... early rain season and the end of flooding periods due to stagnant water in the sunken places WATER QUALITY MONITORING The water quality monitoring data and information has started recently and...

Ngày tải lên: 09/12/2013, 22:15

... of small centralized ground water treatment plants in which the treatment is adapted and optimized to the ground water quality In Hoa An the use of ground water for drinking water purposes should ... fishponds Surface water, rain water and ground water are used for the drinking and the domestic water supply Many farms and households have small scale tube wells to withdraw ground water In some ... concentration of the predominant water species Here, the classification distinguishes three different ground water types following the Vietnamese standards for ground water TCVN 5944 –1995 (see table...

Ngày tải lên: 16/01/2014, 17:20