West Kempsey Sewage Treatment Plant
2017 Environment Protection Licence data

Premises: West Kempsey Sewage Treatment Plant
Licensee: Kempsey Shire Council
Licence number: 763

Sampling point 1
Pollutant Limit Result
Date Sampled: 8 November 2017 - Date obtained: 20 November 2017 - Date published: 20 November 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 6 mg/L
Biochemical Oxygen Demand 20 mg/L 4 mg/L
pH 6.5 - 8.5 7.7
Total nitrogen 20 mg/L 10.1 mg/L
Total phosphorus 3 mg/L 0.37 mg/L
Faecal coliforms 600 cfu/100mL 156 cfu/100mL
Nitrogen (ammonia) 10 mg/L 0.22 mg/L
Volume of wastewater discharged 27 September 2017   4840
Date Sampled: 25 October 2017 - Date obtained: 6 November 2017 - Date published: 7 November 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 13 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 8.4
Total nitrogen 20 mg/L 8.00 mg/L
Total phosphorus 3 mg/L 0.35 mg/L
Faecal coliforms 600 cfu/100mL 180 cfu/100mL
Nitrogen (ammonia) 10 mg/L 0.12 mg/L
Volume of wastewater discharged 27 September 2017   1650 kL
Date Sampled: 11 October 2017 - Date obtained: 24 October 2017 - Date published: 27 October 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 12 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 8.4
Total nitrogen 20 mg/L 4.59 mg/L
Total phosphorus 3 mg/L 0.38 mg/L
Faecal coliforms 600 cfu/100mL TNTC
Nitrogen (ammonia) 10 mg/L <0.05 mg/L
Volume of wastewater discharged 27 September 2017   1810 kL
Date Sampled: 27 September 2017 - Date obtained: 9 October 2017 - Date published: 12 October 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 2 mg/L
Biochemical Oxygen Demand 20 mg/L 2 mg/L
pH 6.5 - 8.5 9.3
Total nitrogen 20 mg/L 4.62 mg/L
Total phosphorus 3 mg/L 0.21 mg/L
Faecal coliforms 600 cfu/100mL 65 cfu/100mL
Nitrogen (ammonia) 10 mg/L 0.08 mg/L
Volume of wastewater discharged 27 September 2017   1855 kL
Date Sampled: 13 September 2017 - Date obtained: 21 September 2017 - Date published: 22 September 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 3 mg/L
Biochemical Oxygen Demand 20 mg/L <2 mg/L
pH 6.5 - 8.5 9.0
Total nitrogen 20 mg/L 10.6 mg/L
Total phosphorus 3 mg/L 0.11 mg/L
Faecal coliforms 600 cfu/100mL 68 cfu/100mL
Nitrogen (ammonia) 10 mg/L 0.08 mg/L
Volume of wastewater discharged 13 September 2017   2050 kL
Date Sampled: 30 August 2017 - Date obtained: 11 September 2017 - Date published: 12 September 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L <2 mg/L
Biochemical Oxygen Demand 20 mg/L 6 mg/L
pH 6.5 - 8.5 7.3
Total nitrogen 20 mg/L 13.9 mg/L
Total phosphorus 3 mg/L 0.28 mg/L
Faecal coliforms 600 cfu/100mL 70 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.56 mg/L
Volume of wastewater discharged 30 August 2017   1020 kL
Date Sampled: 16 August 2017 - Date obtained: 23 August 2017 - Date published: 28 August 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 12 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.3
Total nitrogen 20 mg/L 14.4 mg/L
Total phosphorus 3 mg/L 0.50 mg/L
Faecal coliforms 600 cfu/100mL 0 cfu/100mL
Nitrogen (ammonia) 10 mg/L 4.39 mg/L
Volume of wastewater discharged 16 August 2017   520 kL
Date Sampled: 2 August 2017 - Date obtained: 10 August 2017 - Date published: 10 August 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 39 mg/L
Biochemical Oxygen Demand 20 mg/L 22 mg/L
pH 6.5 - 8.5 9.0
Total nitrogen 20 mg/L 16.7 mg/L
Total phosphorus 3 mg/L 0.80 mg/L
Faecal coliforms 600 cfu/100mL 15 cfu/100mL
Nitrogen (ammonia) 10 mg/L 3.63 mg/L
Volume of wastewater discharged 2 August 2017   2080 kL
Date Sampled: 19 July 2017 - Date obtained: 28 July 2017 - Date published: 1 August 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 12 mg/L
Biochemical Oxygen Demand 20 mg/L 7 mg/L
pH 6.5 - 8.5 7.0
Total nitrogen 20 mg/L 14.0 mg/L
Total phosphorus 3 mg/L 0.42 mg/L
Faecal coliforms 600 cfu/100mL 30 cfu/100mL
Nitrogen (ammonia) 10 mg/L 2.10 mg/L
Volume of wastewater discharged 19 July 2017   1210 kL
Date Sampled: 5 July 2017 - Date obtained: 20 July 2017 - Date published: 1 August 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 6 mg/L
Biochemical Oxygen Demand 20 mg/L 5 mg/L
pH 6.5 - 8.5 7.0
Total nitrogen 20 mg/L 9.40 mg/L
Total phosphorus 3 mg/L 0.34 mg/L
Faecal coliforms 600 cfu/100mL 48 cfu/100mL
Nitrogen (ammonia) 10 mg/L 2.40 mg/L
Volume of wastewater discharged 5 July 2017   2250 kL
Date Sampled: 21 June 2017 - Date obtained: 4 July 2017 - Date published: 6 July 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 13 mg/L
Biochemical Oxygen Demand 20 mg/L 5 mg/L
pH 6.5 - 8.5 7.1
Total nitrogen 20 mg/L 10.4 mg/L
Total phosphorus 3 mg/L 0.53 mg/L
Faecal coliforms 600 cfu/100mL 405 cfu/100mL
Nitrogen (ammonia) 10 mg/L 3.05 mg/L
Date Sampled: 7 June 2017 - Date obtained: 16 June 2017 - Date published: 20 June 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 31 mg/L
Biochemical Oxygen Demand 20 mg/L 8 mg/L
pH 6.5 - 8.5 7.0
Total nitrogen 20 mg/L 11.9 mg/L
Total phosphorus 3 mg/L 0.97 mg/L
Faecal coliforms 600 cfu/100mL 100 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.76 mg/L
Date Sampled: 24 May 2017 - Date obtained: 31 May 2017 - Date published: 1 June 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 10 mg/L
Biochemical Oxygen Demand 20 mg/L 5 mg/L
pH 6.5 - 8.5 7.0
Total nitrogen 20 mg/L 12.0 mg/L
Total phosphorus 3 mg/L 0.89 mg/L
Faecal coliforms 600 cfu/100mL 360 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.07 mg/L
Date Sampled: 10 May 2017 - Date obtained: 18 May 2017 - Date published: 19 May 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 7 mg/L
Biochemical Oxygen Demand 20 mg/L 2 mg/L
pH 6.5 - 8.5 7.1
Total nitrogen 20 mg/L 4.99 mg/L
Total phosphorus 3 mg/L 0.91 mg/L
Faecal coliforms 600 cfu/100mL 153 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.81 mg/L
Date Sampled: 26 April 2017 - Date obtained: 3 May 2017 - Date published: 8 May 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 3 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.1
Total nitrogen 20 mg/L 6.10 mg/L
Total phosphorus 3 mg/L 0.33 mg/L
Faecal coliforms 600 cfu/100mL 210 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.23 mg/L
Date Sampled: 12 April 2017 - Date obtained: 24 April 2017 - Date published: 2 May 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 10 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.0
Total nitrogen 20 mg/L 6.77 mg/L
Total phosphorus 3 mg/L 0.05 mg/L
Faecal coliforms 600 cfu/100mL 20 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.71 mg/L
Date Sampled: 29 March 2017 - Date obtained: 7 April 2017 - Date published: 18 April 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 8 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.1
Total nitrogen 20 mg/L 6.46 mg/L
Total phosphorus 3 mg/L 0.74 mg/L
Faecal coliforms 600 cfu/100mL 210 cfu/100mL
Nitrogen (ammonia) 10 mg/L 4.46 mg/L
Date Sampled: 15 March 2017 - Date obtained: 23 March 2017 - Date published: 24 March 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 12mg/L
Biochemical Oxygen Demand 20 mg/L 4 mg/L
pH 6.5 - 8.5 7.3
Total nitrogen 20 mg/L 5.70 mg/L
Total phosphorus 3 mg/L 0.64 mg/L
Faecal coliforms 600 cfu/100mL TNTC
Nitrogen (ammonia) 10 mg/L 0.82 mg/L
Date Sampled: 1 March 2017 - Date obtained: 15 March 2017 - Date published: 16 March 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 14 mg/L
Biochemical Oxygen Demand 20 mg/L 8 mg/L
pH 6.5 - 8.5 7.2
Total nitrogen 20 mg/L 5.40 mg/L
Total phosphorus 3 mg/L 0.68 mg/L
Faecal coliforms 600 cfu/100mL TNTC
Nitrogen (ammonia) 10 mg/L 1.12 mg/L
Date Sampled: 15 February 2017 - Date obtained: 23 February 2017 - Date published: 24 February 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 26 mg/L
Biochemical Oxygen Demand 20 mg/L 13 mg/L
pH 6.5 - 8.5 7.3
Total nitrogen 20 mg/L 3.30 mg/L
Total phosphorus 3 mg/L 0.92 mg/L
Faecal coliforms 600 cfu/100mL 195 cfu/100mL
Nitrogen (ammonia) 10 mg/L 1.18 mg/L
Date Sampled: 1 February 2017 - Date obtained: 8 February 2017 - Date published: 9 February 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 31 mg/L
Biochemical Oxygen Demand 20 mg/L 10 mg/L
pH 6.5 - 8.5 7.8
Total nitrogen 20 mg/L 1.96 mg/L
Total phosphorus 3 mg/L 0.89 mg/L
Faecal coliforms 600 cfu/100mL 360 cfu/100mL
Nitrogen (ammonia) 10 mg/L <0.05 mg/L
Date Sampled: 18 January 2017 - Date obtained: 24 January 2017 - Date published: 6 February 2017
Oil & grease 10 mg/L <2 mg/L
Total suspended solids 40 mg/L 5 mg/L
Biochemical Oxygen Demand 20 mg/L <4 mg/L
pH 6.5 - 8.5 7.5
Total nitrogen 20 mg/L 1.76 mg/L
Total phosphorus 3 mg/L 0.99 mg/L
Faecal coliforms 600 cfu/100mL TNTC
Nitrogen (ammonia) 10 mg/L 0.32 mg/L
Date Sampled: 4 January 2017 - Date obtained: 16 January 2017 - Date published: 1 February 2017
Oil & grease 10 mg/L 2 mg/L
Total suspended solids 40 mg/L 46 mg/L
Biochemical Oxygen Demand 20 mg/L 13 mg/L
pH 6.5 - 8.5 7.5
Total nitrogen 20 mg/L 3.04 mg/L
Total phosphorus 3 mg/L 1.62 mg/L
Faecal coliforms 600 cfu/100mL 14 cfu/100mL
Nitrogen (ammonia) 10 mg/L <0.05 mg/L

Note: TNTC - Too Numerous To Count

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