Hyporheic Zone in Urban Streams: A Review and Opportunities for Enhancing Water Quality and Improving Aquatic Habitat by Active Management

2013 ◽  
Vol 30 (8) ◽  
pp. 480-501 ◽  
Author(s):  
Justin E. Lawrence ◽  
Magnus E. Skold ◽  
Fatima A. Hussain ◽  
David R. Silverman ◽  
Vincent H. Resh ◽  
...  
Keyword(s):  
Water Quality ◽  
Hyporheic Zone ◽  
Aquatic Habitat ◽  
Urban Streams ◽  
Active Management

Aquatic Habitat Analysis as an Element of Water Resources Planning and Management

1985 ◽  
Vol 17 (6-7) ◽  
pp. 879-890 ◽  
Author(s):  
Edwin E. Herricks
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Environmental Quality ◽  
Habitat Management ◽  
Aquatic Habitat ◽  
Water Quality Criteria ◽  
Water Resources Planning ◽  
High Quality ◽  
Planning And Management ◽  
Resources Planning

With increased emphasis on environmental quality objectives in water resources planning and management, past practices of simply considering water quality as the only environmental quality objective are inappropriate. Expanded environmental quality objectives include maintenance of high quality aquatic habitat. Water resource systems must provide both physical and chemical conditions appropriate for the propagation and maintenance of healthy diverse aquatic communities. Managing water resources to provide high quality habitat involves planning to meet both water quality and water quantity objectives. Existing technology based water quality controls and stream based water quality criteria can now be supplemented by aquatic habitat management. An approach to aquatic habitat management is illustrated by use of the Incremental Methodology developed by the U. S. Fish and Wildlife Service. The Incremental Methodology uses measures of aquatic habitat to assess instream flows required for by aquatic life. Thus the range of environmental quality objectives in resources planning and management is expanded by application of these methods to include aquatic habitat as well as water quality management. Methods used to determine instream flow needs for rivers in Illinois are reviewed, and the use of this information in developing regulations limiting water extraction for off stream use are described. Aquatic habitat based management is shown to provide workable methods to meet expanded environmental quality objectives in water resources planning and management.

Stormwater overflow impacts on the sanitary quality of bathing waters

2007 ◽  
Vol 56 (11) ◽  
pp. 43-50 ◽  
Author(s):  
E. Soyeux ◽  
F. Blanchet ◽  
B. Tisserand
Keyword(s):  
Water Quality ◽  
Urban Areas ◽  
Active Management ◽  
Bathing Water ◽  
Bathing Waters ◽  
Management Concept ◽  
On Line ◽  
Bathing Water Quality ◽  
High Level ◽  
Water Quality Deterioration

New European Directive 2006/7/EC concerning the management of bathing water quality introduces the concept of ‘active management of bathing water sanitary quality’ which could lead to a temporary bathing prohibition in case of short term pollution. For the last three bathing seasons, Veolia has carried out in experimental mode this ‘active management’ concept at more than one hundred bathing sites with various characteristics. Results confirm the high level of microbiological pollution observed in sewer overflows during rainy periods, which is the main cause of bathing water quality deterioration. An on-line treatment solution has been successfully tested. This solution may be used in dense urban areas.

scholarly journals Comparison of Three Macroinvertebrate Sampling Methods for Use in Assessment of Water Quality Changes in Flashy Urban Streams

2020 ◽  
Vol 11 (08) ◽  
pp. 585-609
Author(s):  
Roger Yeardley Junior ◽  
Scott Jacobs ◽  
Ken Fritz ◽  
William Thoeny
Keyword(s):  
Water Quality ◽  
Sampling Methods ◽  
Urban Streams ◽  
Quality Changes

scholarly journals Dispersed urban-stormwater control improved stream water quality in a catchment-scale experiment

2021 ◽  
Author(s):  
Christopher John Walsh ◽  
Sam Imberger ◽  
Matthew J Burns ◽  
Darren G Bos ◽  
Tim D Fletcher
Keyword(s):  
Water Quality ◽  
Stream Water ◽  
Control Measure ◽  
Urban Streams ◽  
Septic Tank ◽  
Stream Water Quality ◽  
Urban Stormwater ◽  
Catchment Scale ◽  
Nitrogen Concentrations ◽  
Stormwater Control

Traditional approaches to urban drainage degrade receiving waters. Alternative approaches have potential to protect downstream waters and provide other benefits to cities, including greater water security. Their widespread adoption requires robust demonstration of their feasibility and effectiveness. We conducted a catchment-scale, before-after-control-reference-impact experiment to assess the effect of dispersed stormwater control on stream ecosystems. We used a variant of effective imperviousness (EI), integrating catchment-scale stormwater runoff impact and stormwater-control-measure (SCM) performance, as the measure of experimental effect. We assessed the response of water quality variables in 6 sites on 2 streams, following SCM implementation in their catchments. We compared changes in those streams over 7 years, as SCM implementation increased, to the 12 preceding years, and over the 19 years in 3 reference and 2 control streams. SCMs reduced phosphorus and nitrogen concentrations and temperature, and increased electrical conductivity; with effect size negatively correlated with antecedent rain. SCM-induced reductions in phosphorus and temperature were of a similar magnitude to increases from urban development, when assessed as a function of change in EI. Nitrogen reductions were observed, even though concentrations among sites were not correlated with EI, being more influenced by septic tank seepage. SCMs had no effect on suspended solids concentrations, which were lower in urban streams than in reference streams. This experiment strengthens the inference that urban stormwater drainage increases contaminant concentrations in urban streams, and demonstrates that such impacts are reversible and likely preventable. SCMs reduce contaminant concentrations by reducing the frequency and magnitude of uncontrolled drainage flows and augmenting reduced baseflows. Increased EC and reduced temperature are likely a result of increased contribution of groundwater to baseflows. The stormwater control achieved by the experiment did not fully return phosphorus or nitrogen concentrations to reference levels, but their responses indicate such an outcome is possible in dominant conditions (up to ~20 mm of 24-h antecedent rain). This would require nearly all impervious surfaces draining to SCMs with large retention capacity, thus requiring more downslope space and water demand. EI predicts stream water quality responses to SCMs, allowing better catchment prioritization and SCM design standards for stream protection.

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