Water, Air, & Soil Pollution

, Volume 217, Issue 1–4, pp 135–147 | Cite as

Evaluation of First Flush for Indicator Bacteria and Total Suspended Solids in Urban Stormwater Runoff

Article

Abstract

An urban watershed in Raleigh, NC, was evaluated for Escherichia coli (E. coli), fecal coliform, enterococci, and total suspended solids (TSS) over 20 storm events. Sampling procedures allowed collection of multiple discrete samples per event, resulting in a relatively detailed description of microbe and TSS export for each storm. Data were evaluated to determine if a first flush effect was present for indicator bacteria and TSS in stormwater runoff. Analyses suggested there was a significant first flush effect for fecal coliform and TSS, although the first flush effect for fecal coliform was relatively weak. For E. coli and enterococci, no significant first flush effect was noted. Overall, the first flush effect was not always present for indicator bacteria and, if present, tended to be weak. The first flush effect for TSS was substantially stronger than that of any indicator bacteria. Further analysis showed poor correlation between first flush strength and antecedent climate variables, storm characteristics, and flow characteristics. However, seasonal differences for first flush strength were noted. Specifically, winter storms showed a stronger first flush effect for all indicator bacteria. The results of this study indicate that stormwater runoff presents a potential public health hazard due to elevated indicator bacteria levels for all portions of the storm event. Further, stormwater management practices cannot be expected to treat proportionally more indicator bacteria when sized for the water quality event. Instead, removal will simply be a function of a management practice’s volume capture and microbe sequestration efficiency.

Keywords

Indicator bacteria E. coli enterococci Fecal coliform First flush Stormwater 

References

  1. American Public Health Association, American Water Works Association, and Water Environment Federation (APHA, AWWA, and WEF). (1998). Standard methods for the examination of water and wastewater (20th ed.). Alexandria: American Public Health Association.Google Scholar
  2. Australian Bureau of Meteorology (ABOM). (2010). Climate statistics for Australian locations: summary statistics for Melbourne regional office. http://www.bom.gov.au/climate/averages/tables/cw_086071.shtml (February 16, 2010).
  3. Barrett, M. E., Irish, L. B., Jr., Malina, J. F., Jr., & Charbeneau, R. J. (1998). Characterization of highway runoff in Austin, Texas, area. Journal of Environmental Engineering, 124(2), 131–137.CrossRefGoogle Scholar
  4. Bertrand-Krajewski, J., Chebbo, G., & Saget, A. (1998). Distribution of pollutant mass vs volume in stormwater discharges and the first flush phenomenon. Water Research, 32(8), 2341–2356.CrossRefGoogle Scholar
  5. California Department of Transportation. (2000). First FLUSH STUDY 1999–2000 Report. Rep No. CTSW-RT-00-016, Division of Environmental Analysis, Sacramento, CA.Google Scholar
  6. Characklis, G. W., & Wiesner, M. R. (1997). Particles, metals, and water quality in runoff from large urban watershed. Journal of Environmental Engineering, 123(8), 753–759.CrossRefGoogle Scholar
  7. Characklis, G. W., Dilts, M. J., Simmons, O. D., III, Likirdopulos, C. A., Krometis, L. H., & Sobsey, M. D. (2005). Microbial partitioning to settleable particles in stormwater. Water Research, 39, 1773–1782.CrossRefGoogle Scholar
  8. Crane, S. R., & Moore, J. A. (1986). Modeling enteric bacterial die-off: a review. Water, Air, and Soil Pollution, 27, 411–439.CrossRefGoogle Scholar
  9. Davies, C. M., & Bavor, H. J. (2000). The fate of stormwater-associated bacteria in constructed wetland and water pollution control pond systems. Journal of Applied Microbiology, 89, 349–360.CrossRefGoogle Scholar
  10. Deletic, A. (1998). The first flush load of urban surface runoff. Water Research, 32(8), 2462–2470.CrossRefGoogle Scholar
  11. Haydon, S., & Deletic, A. (2006). Development of a coupled pathogen-hydrologic catchment model. Journal of Hydrology, 328, 467–480.CrossRefGoogle Scholar
  12. Flint, K. R., & Davis, A. P. (2007). Pollutant mass flushing characterization of highway stormwater runoff from an ultra-urban area. Journal of Environmental Engineering, 133(6), 616–626.CrossRefGoogle Scholar
  13. Hathaway, J. M., Hunt, W.F., and Simmons O.D. III. (2010). Statistical evaluation of factors affecting indicator bacteria in urban stormwater runoff. Journal of Environmental Engineering (in press).Google Scholar
  14. Lee, J. H., Bang, K. W., Ketchum, L. H., Choe, J. S., & Yu, M. J. (2002). First flush analysis of urban storm runoff. The Science of the Total Environment, 293, 163–175.CrossRefGoogle Scholar
  15. Jan, C., Chang, C., & Lee, M. (2006). Discussion of ‘design and calibration of a compound sharp-crested weir’ by J. Martinez, J. Reca, M.T. Morillas, and J.G. Lopez. Journal of Hydraulic Engineering, 132(8), 868–871.CrossRefGoogle Scholar
  16. Krometis, L. A., Characklis, G. W., Simmons, O. D., III, Dilts, M. J., Likirdopulos, C. A., & Sobsey, M. D. (2007). Intra-storm variability in microbial partitioning and microbial loading rates. Water Research, 41(2), 506–516.CrossRefGoogle Scholar
  17. Maestre, A., Pitt, R., & Williamson, D. (2004). Nonparametric statistical tests comparing first flush and composite samples from the national stormwater quality database. In W. James (Ed.), Innovative modeling of urban water systems (Vol. 12, pp. 317–338). Guelph: CHI.Google Scholar
  18. Mankin, K. R., Wang, L., Hutchinson, S. L., & Marchin, G. L. (2007). Escherichia coli sorption to sand and silt load soil. Transactions of the ASABE, 50(4), 1159–1165.Google Scholar
  19. McCarthy, D. T. (2008). Modelling microorganisms in urban stormwater. Doctoral dissertation, Monash University, Melbourne, Australia.Google Scholar
  20. McCarthy, D. T. (2009). A traditional first flush assessment of E. coli in urban stormwater runoff. Water Science and Technology, 60(11), 2749–2757.CrossRefGoogle Scholar
  21. McCarthy, D. T., Deletic, A., Mitchell, V. G., Fletcher, T. D., & Diaper, C. (2008). Uncertainties in stormwater E. coli levels. Water Research, 42, 1812–1824.CrossRefGoogle Scholar
  22. National Oceanic and Atmospheric Administration (NOAA). (2009). Vapor pressure calculator. http://www.srh.noaa.gov/epz/?n=wxcalc_vaporpressure (Nov. 18, 2009).
  23. Sansalone, J. J., & Buchberger, S. G. (1997). Partitioning and first flush of metals in urban roadway storm water. Journal of Environmental Engineering, 123(2), 134–143.CrossRefGoogle Scholar
  24. Sansalone, J. J., & Cristina, C. M. (2004). First flush concepts for suspended and dissolved solids in small impervious watersheds. Journal of Environmental Engineering, 130(11), 1301–1314.CrossRefGoogle Scholar
  25. SAS Institute Inc. 2001. The SAS system for Windows (Release 9.1), Cary, NC.Google Scholar
  26. Selvakumar, A., & Borst, M. (2006). Variation of microorganism concentrations in urban stormwater runoff with land use and seasons. Journal of Water and Health, 4(1), 109–124.Google Scholar
  27. State Climate Office of North Carolina (SCONC). (2009). 1971–2000 Climate Normals. http://www.nc-climate.ncsu.edu/cronos/normals.php?station=317079 (Nov. 18, 2009).
  28. Stenstrom, M. K., Silverman, G. S., & Bursztynsky, T. A. (1984). Oil and grease in urban stormwaters. Journal of Environmental Engineering, 110(1), 58–72.CrossRefGoogle Scholar
  29. United States Environmental Protection Agency (USEPA). (2008). Water quality assessment and total maximum daily loads information (ATTAINS). http://www.epa.gov/waters/ir/index.html (November 29, 2008).
  30. Wake County and City of Raleigh (WCCOR). (2010). Imaps. http://imaps.co.wake.nc.us/imaps/ (February 16, 2010).
  31. Wanielista, M. P., & Yousef, Y. A. (1993). Stormwater management. New York: Wiley.Google Scholar
  32. Yacub, G. P., Castric, D. A., Stadterman-Knauer, K. L., Tobin, M. J., Blazina, M., Heineman, T. N., et al. (2002). Evaluation of Colilert and Enterolert defined substrate methodology for wastewater applications. Water Environment Research, 74(2), 131–135.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of Biological and Agricultural EngineeringNorth Carolina State UniversityRaleighUSA

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