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News

Release notes v15.4.3

  • 20 December, 20159 October, 2020

Release notes v15.4.3

– In the model Runoff you can now add more areas in the same project.
Click on New Area to add a new area. Previous area values are copied to the new area.
You can also give the new area a name to easier have control over which area you are working with.
Go into the form (Sub)watershed area and add a name into the field next to the title
(Sub)watershed area.
Only 20 characters are allowed in this field. Click Save.

– Report 3 Pollutant transport adjusted.
The following has changed:
Pollutant concentrations (ug/l) per land use with stormwater+base flow without treatment.
Pollutant loads (kg/year) per land use with stormwater+base flow without treatment.

These are in the current situation limited to show only 20 substances due to a formatting
problem with the PDF conversion. The HTML version shows every substance.
This will be corrected in the future.

News

Release notes v15.4.2

  • 9 December, 20159 October, 2020

Release notes v15.4.2

– New reports created (HTML version. The reports can be used for copying tables and individual rows andpaste them into e.g. Word or Excel.
Due to this change the icon for PDF reports has changed from the PDF icon to a general report icon.
This is made on the mainpage and in the Projects page.

– Revised (corrected) Athmospheric deposition. Naming is changed to Surface Water.

Tip. If the pages looks strange after a new release? Make a refresh of the page (F5-key).

News

Updates (upcoming)

  • 7 December, 20159 October, 2020

Updates (upcoming)

December 2015

• Bio filters, macadam ditches and grassed ditches/swales implemented in the box.
• Equations added to the text descripitions of the flowchart data.
• Performance Report also as HTML enables copying selected tables to Word reports.
• Revise the function of “Studied” flow at low and high proportions.
• Multi-areas. Several areas can be handled in the same file, and tables of pollutants from several areas or areabefore and after exploitation are obtained in a new result report.
• Updates and revisions of calculations of flow and concentration and groundwater area at surface waters upstream in the sub watershed area.
• Red warning about too small ponds (pond bottom at least 2.0 m).
• Add a function with max inflow to flow detention facility.
• Justify max rain duration at design flow detention with red warning symbol if the volume is increasing all the time.
• The result report is supplemented with various design flows and flow detention volumes at different durations.

January 2016

• Be able to set different rain intensities (l/s/ha) for different durations for the selected return period so you can use the model all over the world.
• The result report is supplemented with table of pollution load (kg/year) broken down by
land use.
Add the design of underground basins with or without macadam or filters.
• Relocation of the input rainfall depth to Box Precipitation from the box Wet ponds.
• Facilities in a serie.

News

Release notes v15.4.1

  • 6 December, 20159 October, 2020

Release notes v15.4.1

• Hyperlink from the flow chart to the sites database so you get an overview of the reference values to the standard values (concentrations and treatment effects).

• Guide to the use of the model (save, group, reports etc.)

• Manual added I each of the 5 sub models of the flowchart (clickable question symbols)

• Updated default values for recipient water quality criteria.

Recent Posts

  • Uncertainty inherent to a conceptual model StormTac Web simulating urban runoff quantity, quality and control 11 February, 2021
  • Distribution of responsibilities – Distributed acceptable loads and required treatment between stakeholders within the catchment 12 December, 2020
  • Updated irreducible concentrations in StormTac database and in StormTac Web 27 November, 2020
  • Completed database with updated stormwater concentrations during different seasons and months 27 November, 2020
  • Updated database regarding new references, stormwater concentrations, reduction efficiencies and concentrations for overflow water 23 November, 2020
  • Updated database with a large number of new volume-weighted land-use specific concentration data and BMP reduction efficiencies 6 July, 2020

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