South West Rocks Sewage Treatment Plant
2018 Environment Protection Licence data

Premises: South West Rocks Sewage Treatment Plant
Licensee: Kempsey Shire Council
Licence number: 2497

Sampling point 3
Pollutant Limit Result
Date Sampled: 11 April 2018 - Date obtained: 18 April 2018 - Date published: 23 April 2018
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 3 mg/L
Biochemical Oxygen Demand 20 mg/L 2 mg/L
pH 6.5 - 8.5 7.2
Total nitrogen 15 mg/L 2.60 mg/L
Total phosphorus 6 mg/L 1 mg/L
Faecal coliforms 600 cfu/100mL 0
Nitrogen (ammonia) 5 mg/L <0.05 mg/L
Volume of wastewater discharged 11 April 2018   1522 kL
Date Sampled: 14 March 2018 - Date obtained: 21 March 2018 - Date published: 29 March 2018
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 2 mg/L
Biochemical Oxygen Demand 20 mg/L 2 mg/L
pH 6.5 - 8.5 7.2
Total nitrogen 15 mg/L 1.70 mg/L
Total phosphorus 6 mg/L 0.36 mg/L
Faecal coliforms 600 cfu/100mL 0
Nitrogen (ammonia) 5 mg/L <0.05 mg/L
Volume of wastewater discharged 14 March 2018   1454 kL
Date Sampled: 14 February 2018 - Date obtained: 28 February 2018 - Date published: 1 March 2018
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 4 mg/L
Biochemical Oxygen Demand 20 mg/L 5 mg/L
pH 6.5 - 8.5 7.3
Total nitrogen 15 mg/L 2.20 mg/L
Total phosphorus 6 mg/L 2.42 mg/L
Faecal coliforms 600 cfu/100mL TNTC
Nitrogen (ammonia) 5 mg/L 0.08 mg/L
Volume of wastewater discharged 14 February 2018   1321 kL
Date Sampled: 4 January 2018 - Date obtained: 16 January 2018 - Date published: 17 January 2018
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L <2 mg/L
Biochemical Oxygen Demand 20 mg/L 2 mg/L
pH 6.5 - 8.5 7.4
Total nitrogen 15 mg/L 1.94 mg/L
Total phosphorus 6 mg/L 0.43 mg/L
Faecal coliforms 600 cfu/100mL 1 cfu/100mL
Nitrogen (ammonia) 5 mg/L <0.05 mg/L
Volume of wastewater discharged 4 January 2018   2638 kL

Note: TNTC - Too numerous to count

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