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Table 4

Summary of water quality parameters tested for Wattle Grove Lake, and Woodcroft Lake and Wetland

ParametersSummer
Autumn
Winter
ANZECC Guidelines (2000) 
Woodcroft WetlandWoodcroft LakeWattle Grove LakeWoodcroft WetlandWoodcroft LakeWattle Grove LakeWoodcroft WetlandWoodcroft LakeWattle Grove Lake
pH [H+6.99–7.21 7.25–7.69 6.5–8.34 7.15–8.38 7.27–9.36 6.17–8.12 6.68–8.26 6.84–8.01 6.68–8.25 6.5–8.5 
EC (μs/cm) 446–925 380–418 98.28–212.07 137–710 206–616 77–221 266–729 250–389 97–207 0–30 
DO (mg/L) 3.51–7.20 7.9–10.23 6.96–9.06 3.68–8.76 4.04–11.32 7.17–10.46 5.01–10.04 4.98–10.98 8.86–11.48 6.5–8.5 
Turbidity (NTU) 3–5 3–8 67.33–126.3 2–10 2–10 25–108 3–12 4–15 18–51 0–20 
DOC (mg/L) 11.33–16.05 6.637–8.232 6.24–12.76 5.448–17.26 5.448–18.72 5.15–8.12 5.388–10.79 4.606–8.103 4.24–7.64 – 
NOx – N (μg/L) – 2–34 0–394 0–372 0–316 125–410 33–410 118–310 231–512 10 
Ammonia – N (μg/L) 38–141 37–138 47.75–695.75 32–827 16–246 62–329 158–1,609 100–302 26–220 10 
Phosphate – P (μg/L) 116–412 11–608 7–32 26–1,271 11–458 2–13 1–130 0–53 0–12 35 
TN (μg/L) 1,196–3,459 1,471–2,661 1,812–4,987 1,849–6,167 841–5,517 2,462–6,141 1,130–10,620 1,171–3,375 1,230–6,141 35 
BOD (mg/L) 1.2–3.39 0.17–5.93 3.02–4.48 0.99–7.08 0.34–5.65 1.19–5.43 1.1–4.12 0.22–1.75 1.13–4.29 – 
TSS (mg/L) 10–90 10–220 57–333 5–80 1–250 7–87 3–19 1–25 10–50 – 
TS (mg/L) 350–1,040 10–300 186–540 110–440 10–260 100–483 63–672 37–228 87–250 – 
ParametersSummer
Autumn
Winter
ANZECC Guidelines (2000) 
Woodcroft WetlandWoodcroft LakeWattle Grove LakeWoodcroft WetlandWoodcroft LakeWattle Grove LakeWoodcroft WetlandWoodcroft LakeWattle Grove Lake
pH [H+6.99–7.21 7.25–7.69 6.5–8.34 7.15–8.38 7.27–9.36 6.17–8.12 6.68–8.26 6.84–8.01 6.68–8.25 6.5–8.5 
EC (μs/cm) 446–925 380–418 98.28–212.07 137–710 206–616 77–221 266–729 250–389 97–207 0–30 
DO (mg/L) 3.51–7.20 7.9–10.23 6.96–9.06 3.68–8.76 4.04–11.32 7.17–10.46 5.01–10.04 4.98–10.98 8.86–11.48 6.5–8.5 
Turbidity (NTU) 3–5 3–8 67.33–126.3 2–10 2–10 25–108 3–12 4–15 18–51 0–20 
DOC (mg/L) 11.33–16.05 6.637–8.232 6.24–12.76 5.448–17.26 5.448–18.72 5.15–8.12 5.388–10.79 4.606–8.103 4.24–7.64 – 
NOx – N (μg/L) – 2–34 0–394 0–372 0–316 125–410 33–410 118–310 231–512 10 
Ammonia – N (μg/L) 38–141 37–138 47.75–695.75 32–827 16–246 62–329 158–1,609 100–302 26–220 10 
Phosphate – P (μg/L) 116–412 11–608 7–32 26–1,271 11–458 2–13 1–130 0–53 0–12 35 
TN (μg/L) 1,196–3,459 1,471–2,661 1,812–4,987 1,849–6,167 841–5,517 2,462–6,141 1,130–10,620 1,171–3,375 1,230–6,141 35 
BOD (mg/L) 1.2–3.39 0.17–5.93 3.02–4.48 0.99–7.08 0.34–5.65 1.19–5.43 1.1–4.12 0.22–1.75 1.13–4.29 – 
TSS (mg/L) 10–90 10–220 57–333 5–80 1–250 7–87 3–19 1–25 10–50 – 
TS (mg/L) 350–1,040 10–300 186–540 110–440 10–260 100–483 63–672 37–228 87–250 – 

ANZECC Guidelines for NSW (South-East Australia) are also included for comparison (- values not mentioned in the Guidelines).

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