Talk:First flush

This article is rated C-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Water Low‑importance This article is within the scope of WikiProject Water, a collaborative effort to improve the coverage of Water supply-related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.WaterWikipedia:WikiProject WaterTemplate:WikiProject WaterWater articles Low This article has been rated as Low-importance on the project's importance scale. Urban studies and planning Low‑importance This article is within the scope of WikiProject Urban studies and planning, a collaborative effort to improve the coverage of Urban studies and planning on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Urban studies and planningWikipedia:WikiProject Urban studies and planningTemplate:WikiProject Urban studies and planningUrban studies and planning articles Low This article has been rated as Low-importance on the project's importance scale. Environment Low‑importance This environment-related article is part of the WikiProject Environment to improve Wikipedia's coverage of the environment. The aim is to write neutral and well-referenced articles on environment-related topics, as well as to ensure that environment articles are properly categorized. Read Wikipedia:Contributing FAQ and leave any messages at the project talk page.EnvironmentWikipedia:WikiProject EnvironmentTemplate:WikiProject EnvironmentEnvironment articles Low This article has been rated as Low-importance on the project's importance scale.

I've been trying to find the Southern California [Orange County?] project - somewhat controversial, that reclaims 'toilet water' into drinkable tap water. If someone could link me to the story, I'd appreciate it. MRobertFlick (talk) 17:24, 14 February 2009 (UTC)[reply]

First flush also is a term used for the spring harvest of tea leaves (second flush being the summer harvest). Not sure if that should be included; have no citations for it Da Next Pope (talk) 15:25, 29 October 2009 (UTC)[reply]

The most stringent definition of first flush, I know of, is that 80 % of the pollutant mass are expected to be transported within 20 % of the initial runoff volume, Urbonas and Stahre (1993) and Bertrand-Krajewski et al. (1998). Another less common definition is Barbosa and Hvitved-Jacobsen (1999) that suggested first flush occur when 50 % of the total volume carries 61 % to 69 % of the total solids. Do you know of others? I also suggest that it would be worth to notice in the article that the first flush phenomena may occur for one pollutant but not for others during the same run-off event.

Bertrand-Krajewski J.L., Chebbo G., Saget A., (1998) Distribution of pollutant mass vs volume in stormwater discharges and the first flush phenomena, Water Research, 32:2341-2356

Hallberg, Treatment conditions för the removal for of contaminants from road runoff, KTH, TRITA-LWR PhD 1032 ISSN 1650-8602

Hvitved-Jacobsen T, Yousef YA. (1991) Highway runoff quality, environmental impacts and control. Highway pollution. Elsevier, 1991:165-208.

Urbonas B., Stahre P. Stormwater Best Management Practices and Detention for Water Quality, Drainage and CSO Management, PTR Prentice Hall, Englewood Cliffs, New Yersey; page 313,315, 332

/HEAL —Preceding unsigned comment added by 82.214.19.67 (talk) 12:32, 19 December 2009 (UTC)[reply]