Dry and wet weather microbial characterization of the Chicago area waterway system

G. Rijal, C. Petropoulou, J. K. Tolson, M. DeFlaun, Charles P Gerba, R. Gore, T. Glymph, T. Granato, C. O'Connor, L. Kollias, R. Lanyon

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The Chicago Area Waterway System (CAWS) is a man-made channel, which serves the Chicago area for the drainage of urban storm water and the conveyance of secondary treated effluent from the Metropolitan Water Reclamation District of Greater Chicago's (District) North Side, Stickney and Calumet water reclamation plants (WRPs). A microbial characterization of the CAWS upstream and downstream of the WRPs and from the WRP outfall was initiated by collecting dry and wet weather samples and analyzing for indicators and pathogens. During dry weather, indicator bacteria (fecal coliform [FC], E. coli [EC], enterococci [EN]) were the most abundant microbial species detected in the CAWS compared to pathogens (Salmonella spp [SA], enteric viruses [EV], adenovirus [AV], norovirus [NV] and Giardia and Cryptosporidium). Pseudomonas aeruginosa [PA] levels in the outfall samples were either lower or equivalent to the CAWS. The wet weather samples had a higher frequency of detection of indicator bacteria and pathogens compared to dry weather samples. Overall, the concentrations of pathogens in the CAWS, representing the weather conditions experienced in a recreational year, were relatively low. The study concluded that the presence of pathogens in the CAWS downstream of the WRPs were due to secondary loading of the waterway under wet weather conditions from combined sewer overflows (CSOs) and other discharges.

Original languageEnglish (US)
Pages (from-to)1847-1855
Number of pages9
JournalWater Science and Technology
Volume60
Issue number7
DOIs
StatePublished - 2009

Fingerprint

Wastewater reclamation
Pathogens
weather
pathogen
Outfalls
Coliform bacteria
Combined sewers
water
Salmonella
Viruses
Escherichia coli
Drainage
bacterium
Effluents
Bacteria
fecal coliform
waterway
virus
drainage
effluent

Keywords

  • Bacteria
  • Dry and wet weather
  • Pathogens
  • Protozoa
  • Viruses

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Cite this

Rijal, G., Petropoulou, C., Tolson, J. K., DeFlaun, M., Gerba, C. P., Gore, R., ... Lanyon, R. (2009). Dry and wet weather microbial characterization of the Chicago area waterway system. Water Science and Technology, 60(7), 1847-1855. https://doi.org/10.2166/wst.2009.598

Dry and wet weather microbial characterization of the Chicago area waterway system. / Rijal, G.; Petropoulou, C.; Tolson, J. K.; DeFlaun, M.; Gerba, Charles P; Gore, R.; Glymph, T.; Granato, T.; O'Connor, C.; Kollias, L.; Lanyon, R.

In: Water Science and Technology, Vol. 60, No. 7, 2009, p. 1847-1855.

Research output: Contribution to journalArticle

Rijal, G, Petropoulou, C, Tolson, JK, DeFlaun, M, Gerba, CP, Gore, R, Glymph, T, Granato, T, O'Connor, C, Kollias, L & Lanyon, R 2009, 'Dry and wet weather microbial characterization of the Chicago area waterway system', Water Science and Technology, vol. 60, no. 7, pp. 1847-1855. https://doi.org/10.2166/wst.2009.598
Rijal, G. ; Petropoulou, C. ; Tolson, J. K. ; DeFlaun, M. ; Gerba, Charles P ; Gore, R. ; Glymph, T. ; Granato, T. ; O'Connor, C. ; Kollias, L. ; Lanyon, R. / Dry and wet weather microbial characterization of the Chicago area waterway system. In: Water Science and Technology. 2009 ; Vol. 60, No. 7. pp. 1847-1855.
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