Las Vegas Wash Tributaries Water Quality Report, 2003-2007

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SampleSitePeriodSampledAluminum (ug/l)Arsenic (ug/l)Barium (ug/l)Chromium (ug/l)LVC_2 2003-2007 82.5 2.6 64.0 1.2 8.0 0.2 0.9 7.4 3.1 4.6 37.7LW12.1 2003-2007 365.1 6.0 45.6 0.8 3.0 0.3 0.9 34.1 4.1 8.1 16.3FW_0 2003-2007 95.7 5.1 47.7 1.3 10.7 0.1 0.3 7.1 5.7 11.3 16.0SC_1 2003-2007 76.7 11.8 52.4 2.6 2.4 0.1 0.1 6.6 0.9 6.4 8.5MC_2 2003-2007 29.9 16.7 24.6 0.6 4.4 2.3 0.1 3.6 7.7 19.6 5.5DC_1 2003-2007 77.0 41.3 22.7 0.8 1.4 0.1 0.0 21.9 8.5 16.1 8.2LWC6.3 2003-Jan 2006 2.7 75.3 20.3 5.5 1.8 1.0 0.0 447.4 33.1 3.9 6.4LWC3.7 2003-July 2004 841.6 21.6 28.9 2.5 4.5 0.9 8.7 252.9 7.6 1.6 7.8BS-1 2006-2007 9.0 35.6 33.3 15.9 2.6 4.4 0.0 2.7 5.0 11.2 1.9ND= Not DetectedTable 7: Average metal concentrations.Aluminum and manganese have a wide range of concentrations for most locations (Appendix B).The concentration of manganese was much higher in both seeps than in the tributaries. It isinteresting to note that manganese is used at the BMI industrial site, and naturally occurringmanganese can be found in close proximity to the Wash (Zhou et al, 2004). Concentrations ofaluminum were much higher in GCS-5 (LWC3.7) than any other location (Table 7; Figure 8).Arsenic was detected at all locations. The tributary sites with higher average concentrationswere Duck Creek (DC_1) and Burns Street (BS_1) at 41.3 ug/L and 35.6 ug/L respectively(Table 7). Arsenic concentrations for the two seeps, GCS-5 (LWC3.7) Kerr-McGee (LWC6.3),were 21.6 ug/L and 75.3 ug/L, respectively (Table 7). Average concentrations for the remainingsites ranged from 2.6 to 16.7 ug/L.Copper (ug/l)Iron (mg/l)Lead (ug/l)Manganese (ug/l)Nickel (ug/l)Selenium (ug/l)Zinc (ug/l)Tributary Water Quality Monitoring Program, 2003-2007 17
900.0800.0Aluminum (ug/l)Manganese (ug/l)700.0600.0Concentration ug/L500.0400.0300.0200.0100.00.0LVC_2 LW12.1 FW_0 SC_1 MC_2 DC_1 BS-1 LWC6.3 LWC3.7Sample SiteFigure 8. Average aluminum (Al) and manganese (Mn) concentrations.80.0Concentration ug/L, Iron concentration in mg/L70.060.050.040.030.020.0Arsenic (ug/l)Barium (ug/l)Chromium (ug/l)Copper (ug/l)Lead (ug/l)Nickel (ug/l)Selenium (ug/l)Zinc (ug/l)Iron (mg/l)10.00.0LVC_2 LW12.1 FW_0 SC_1 MC_2 DC_1 BS-1 LWC6.3 LWC3.7Sample SiteFigure 9. Average concentrations of other metals.Tributary Water Quality Monitoring Program, 2003-2007 18
Page 2 and 3: Tributary Water Quality Monitoring
Page 4: List of TablesPage No.Table 1. Samp
Page 7 and 8: Site NameLVC_2LW12.1FW_0SC_1DC_1MC_
Page 9 and 10: 2.2 ParametersField measurements, i
Page 11 and 12: 2004Site Temp. 0 C pH EC uS/cm DO m
Page 13 and 14: 2c: Average Field Parameters, 20058
Page 15 and 16: SiteYearCalcium (mg/l)Magnesium(mg/
Page 17 and 18: 600050004000TDS in mg/L300020001000
Page 19 and 20: TOC concentrations were less than 6
Page 21: 0.30OPTP0.25Average Concentration m
Page 25 and 26: 25.020.0Selenium (ug/l)15.010.05.00
Page 27 and 28: Average of the Average Bacteria Con
Page 29 and 30: Annual Average Perchlorate Concentr
Page 31 and 32: SampleSitePeriodSampleGlyoxalM-Glyo
Page 33 and 34: methods for measurement and computa
Page 35 and 36: 80007000All tributaries contribute
Page 37 and 38: 4.0 CONCLUSIONSThe Tributary Water
Page 39 and 40: Appendix AIndividual Parameters to
Page 41 and 42: 2,4-Dimethylphenol 5.00 Atrazine (A
Page 43 and 44: Ib. Heavy Metals GroupAluminumAntim
Page 45 and 46: Appendix IIa. Quarterly Field Measu
Page 47 and 48: Appendix IIa. Quarterly Field Measu
Page 49 and 50: Appendix IIb. Quarterly Major Ion C
Page 51 and 52: Appendix IIb. Quarterly Major Ion C
Page 53 and 54: Appendix IIc. Nutrient Concentratio
Page 55 and 56: Appendix IId. Quarterly Heavy Metal
Page 57 and 58: Site LocationAppendix IId. Quarterl
Page 59 and 60: Appendix IIe. Organic Compound Conc
Page 73:
Appendix IIe. Organic Compound Conc
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Las Vegas Wash Tributaries Water Quality Report, 2003-2007

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