Anacostia Wet Weather Receiving Water Monitoring Survey: Event 1

2001 ◽  
Author(s):  
J. W. Pohlman ◽  
C. S. Mitchell ◽  
C. M. Miller ◽  
R. B. Coffin
Keyword(s):  
Water Monitoring ◽  
Monitoring Survey ◽  
Wet Weather ◽  
Receiving Water

Receiving Water Protection During Wet Weather

1994 ◽  
Vol 29 (1-2) ◽  
pp. 219-229 ◽  
Author(s):  
Vladimir Krejci ◽  
Wolfgang Schilling ◽  
Sonja Gammeter
Keyword(s):  
Drainage System ◽  
Site Specific ◽  
Key Variables ◽  
Receiving Waters ◽  
Wet Weather ◽  
Proposed Modification ◽  
Ecological Objectives ◽  
Definition Of ◽  
Receiving Water

It is proposed that in the future only site-specific and problem-related measures should be applied to solve the combined sewer overflow problem. Based on experience in Switzerland a procedure is developed to plan technically and ecologically optimised measures to protect urban receiving waters during wet weather. This procedure is based on results of a field study (the Fehraltorf/Switzerland case) carried out by a multidisciplinary research team. The most important stages of the procedure can be described bythe definition of site-specific ecological objectives,the determination of a few key variables that have significant influence on the ecological state of the receiving water and that can be modified with some of the site-specific measures below,measurement, observation, and calculation of these variables,choice of site-specific measures against wet weather pollution problems (in catchment, sewer system, and receiving water), andrecommendation of measures and their priorities, based on predicted cost and effectiveness with respect to the variables above. The results of the case study demonstrate the necessity of the multidisciplinary approach that treats the urban catchment, the urban drainage system, and the receiving water as one single system. Since urbanised areas continue to grow and since the reconstruction of old depreciated sewer systems is a major technical and economical challenge, the proposed modification of the planning concept may lead towards improved drainage systems, requiring appropriate investment, and causing less serious damage to the environment.

scholarly journals Surface Water Monitoring Survey for Bensulfuron Methyl Applied in Paddy Fields

1998 ◽  
Vol 23 (3) ◽  
pp. 235-240 ◽  
Author(s):  
Yuko OKAMOTO ◽  
Richard L. FISHER ◽  
Kevin L. ARMBRUST ◽  
C. John PETER
Keyword(s):  
Surface Water ◽  
Water Monitoring ◽  
Paddy Fields ◽  
Monitoring Survey

Receiving Water Response to a Master Plan for Wet Weather Flow Management Developed for the City of Toronto

2004 ◽  
Vol 39 (4) ◽  
pp. 417-431 ◽  
Author(s):  
Michael D'Andrea ◽  
William J. Snodgrass ◽  
Patrick D. Chessie
Keyword(s):  
Water Quality ◽  
Outreach Program ◽  
Master Plan ◽  
Flow Management ◽  
Wet Weather ◽  
Wet Weather Flow ◽  
Water Response ◽  
The City ◽  
Flooding Protection ◽  
Receiving Water

Abstract The City of Toronto has development a Wet Weather Flow Management Master Plan incorporating a new philosophy in wet weather flow management where rainwater is recognized as a resource. Wet weather flows are to be managed on a watershed basis, and a hierarchical approach to wet weather flow management is to be used, starting with at source, followed by conveyance and finally end-of-pipe control measures. The study area extended across the City of Toronto, encompassing six major watersheds and the waterfront. The Plan development followed the planning principles of Ontario's Environmental Assessment Act and incorporated broad public and agency consultation. A series of 13 objectives was identified and grouped into four major categories: water quality, water quantity, natural areas and wildlife, and sewer system. An innovative approach was used which integrated hydrologic, hydraulic and water quality predictions from land-based, watershed and lake models, respectively, to assess the effectiveness of various strategies. The receiving water response indicated that source controls and conveyance controls were insufficient to achieve the receiving water objectives of the Plan. This was only possible through the implementation of a comprehensive set of measures consisting of: source controls, conveyance controls, end-of-pipe controls, basement flooding protection works, stream restoration works, shoreline management, enhanced municipal operations and an enhanced public education and community outreach program. Overall benefits expected through the Plan include: swimmable waterfront beaches, control of combined sewer overflows in compliance with legislative requirements, basement flooding protection, protection of the City's infrastructure from stream erosion, restoration of degraded local streams and aquatic habitat and the reduction of algal growth along the waterfront, and improved stream water quality in area watercourses. The cost of the Plan over the 25 years is estimated to be $1.047 billion with an additional $233 million in operational and maintenance costs.

Quantification of diffuse and concentrated pollutant loads at the watershed-scale: an Italian case study

2009 ◽  
Vol 59 (11) ◽  
pp. 2125-2135 ◽  
Author(s):  
Angela Candela ◽  
Gabriele Freni ◽  
Giorgio Mannina ◽  
Gaspare Viviani
Keyword(s):  
Water Body ◽  
Point Sources ◽  
Scale Model ◽  
Nonpoint Sources ◽  
Pollutant Loads ◽  
Italian Case ◽  
Pollutant Sources ◽  
Wet Weather ◽  
Receiving Water

In this study, diffuse and point source pollutant loads were evaluated using an Italian case study: the Nocella catchment, which has been subject to extensive monitoring. The Nocella catchment is located in Sicily (Italy) and has an area of about 60 km2. The river receives wastewater and stormwater from two urban areas drained by combined sewers. The two sewer systems, two wastewater treatment plants and a river reach were monitored during both dry and wet weather periods. Thereafter, an integrated catchment-scale model was applied to simulate point pollutant sources, i.e., pollution coming from the urban drainage system, and nonpoint pollutant sources, i.e., pollution coming from agricultural and wildlife activities. Different models were combined and long-term simulations were carried out in order to reconstruct the total pollutant loads discharged into the receiving water body and identify the roles of the different pollutant sources. This study demonstrates the complexity of water quality assessment in partially urbanised natural basins where neither point nor nonpoint sources can be neglected. Point sources are mainly responsible for acute oxygen demanding polluting impact during wet weather periods, and both point and nonpoint sources are responsible for the impact of nutrients on the receiving water body.

Comparison of Overflows from Separate and Combined Sewers – Quantity and Quality

1990 ◽  
Vol 22 (10-11) ◽  
pp. 31-38 ◽  
Author(s):  
M. G. Carleton
Keyword(s):  
Water Pollution ◽  
Integrated Control ◽  
The Other ◽  
Sewer Systems ◽  
Wet Weather ◽  
Receiving Water

The use of separate sewerage systems to solve pollution problems associated with combined systems is examined. Overflows from combined stormwater-sewer systems have been found to be one of the major causes of receiving water pollution. Experiences in two countries which have predominantly one system or the other provided a basis for comparison. Wet weather overflow was found to be a major problem with similar quality of overflow produced for both systems. Minimising overflows was feasible, however proper and integrated control of stormwater and sewage flows, related to receiving water impacts, is indicated as the best solution. The use of separate sewerage systems to solve pollution problems may not be justified.

Sign in / Sign up

Export Citation Format

Share Document