River and stream water quality and ecology - Greater Wellington ...

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River and stream water quality and ecology in the Wellington region: State and trends Table 4.2: Summary of physico-chemical and microbiological water quality data and compliance with guideline/trigger values for 55 RSoE sites sampled monthly between July 2008 and June 2011. Median values that do not comply with a guideline value are shown in bold font Site No. Site Name Median Min Max n Water temperature (°C) Dissolved oxygen (% saturation) pH Visual clarity (m) Turbidity (NTU) Total suspended solids (mg/L) Conductivity (µS/cm) Total organic carbon (mg/L) % Results >19 °C Median Min Max n % Results
River and stream water quality and ecology in the Wellington region: State and trends Table 4.2 cont.: Summary of physico-chemical and microbiological water quality data and compliance with guideline/trigger values for 55 RSoE sites sampled monthly between July 2008 and June 2011. Median values that do not comply with a guideline value are shown in bold font (bolded and underlined median E. coli counts exceed both ANZECC (2000) and GWRC’s proxy stock water guideline values) Nitrite + nitrate nitrogen (mg/L) Ammoniacal nitrogen (mg/L) Total nitrogen (mg/L) Dissolved reactive phosphorus (mg/L) Total phosphorus (mg/L) E. coli (cfu/100 mL) Site No. Site name Median Min Max n % Results >0.444 mg/L Median Min Max n % Results >0.021 mg/L Median Min Max n % Results >0.614 mg/L Median Min Max n % Results >0.010 mg/L Median Min Max n % Results >0.033 mg/L Median Min Max n % Results >100 cfu/100mL % Results >550 cfu/100mL RS02 Mangapouri S at Bennetts Rd 2.500 0.610 3.900 36 100.0 0.031
Page 1 and 2: River and stream water quality and
Page 3 and 4: DISCLAIMER This report has been pre
Page 5 and 6: observed trends were unclear. The p
Page 7 and 8: 5. Periphyton - state and trends 57
Page 14 and 15: Figure 2.1: RSoE monitoring sites a
Page 16 and 17: 2.4.2 Biological variables River an
Page 52 and 53: 4.2 Temporal trends River and strea
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Page 80 and 81: Chlorophyll a (mg/m 2 ) 90 80 70 60
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25th percentile summer time flow m
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River and stream water quality and
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RS06 Shade RS11 Habitat RS35 RS49 R
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IBI Score 60 50 40 30 20 10 0 River
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Water quality (n=24) Periphyton (n=
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Appendix 1: Monitoring site details
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