South West Rocks Sewage Treatment Plant
2017 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: 7 June 2017 - Date obtained: 16 June 2017 - Date published: 20 June 2017
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 3 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.0
Total nitrogen 15 mg/L 4.09 mg/L
Total phosphorus 6 mg/L 0.43 mg/L
Faecal coliforms 600 cfu/100mL 0
Nitrogen (ammonia) 5 mg/L 0.90 mg/L
Date Sampled: 10 May 2017 - Date obtained: 18 May 2017 - Date published: 19 May 2017
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 3 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.1
Total nitrogen 15 mg/L 2.32 mg/L
Total phosphorus 6 mg/L 1.18 mg/L
Faecal coliforms 600 cfu/100mL 0
Nitrogen (ammonia) 5 mg/L <0.05 mg/L
Date Sampled: 12 April 2017 - Date obtained: 24 April 2017 - Date published: 2 May 2017
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 7.0
Total nitrogen 15 mg/L 3.00 mg/L
Total phosphorus 6 mg/L 0.42 mg/L
Faecal coliforms 600 cfu/100mL 0
Nitrogen (ammonia) 5 mg/L <0.05 mg/L
Date Sampled: 1 March 2017 - Date obtained: 15 March 2017 - Date published: 16 March 2017
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 11 mg/L
Biochemical Oxygen Demand 20 mg/L 9 mg/L
pH 6.5 - 8.5 7.2
Total nitrogen 15 mg/L 2.80 mg/L
Total phosphorus 6 mg/L 1.02 mg/L
Faecal coliforms 600 cfu/100mL TNTC
Nitrogen (ammonia) 5 mg/L 0.07 mg/L
Date Sampled: 1 February 2017 - Date obtained: 8 February 2017 - Date published: 9 February 2017
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 7 mg/L
Biochemical Oxygen Demand 20 mg/L 4 mg/L
pH 6.5 - 8.5 7.6
Total nitrogen 15 mg/L 3.41 mg/L
Total phosphorus 6 mg/L 1.08 mg/L
Faecal coliforms 600 cfu/100mL 0 cfu/100mL
Nitrogen (ammonia) 5 mg/L <0.05 mg/L
Date Sampled: 4 January 2017 - Date obtained: 16 January 2017 - Date published: 1 February 2017
Oil & grease 6 mg/L <2 mg/L
Total suspended solids 30 mg/L 10 mg/L
Biochemical Oxygen Demand 20 mg/L 3 mg/L
pH 6.5 - 8.5 7.4
Total nitrogen 15 mg/L 3.21 mg/L
Total phosphorus 6 mg/L 1.27 mg/L
Faecal coliforms 600 cfu/100mL 0 cfu/100mL
Nitrogen (ammonia) 5 mg/L 0.05 mg/L

Note: TNTC - Too numerous to count

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