The Sawpit Creek Sewage Treatment Plant operates under Environment Protection Licence No. 447, issued by the Environment Protection Authority (EPA). A pollution incident response management plan is required to be prepared and implemented under the Protection of the Environment Legislation Amendment Act 2011.
Licence
View the Environment Protection Licence No. 447 terms and conditions.
Licensee
State of New South Wales (Department of Planning and Environment), PO Box 41, Perisher Valley NSW 2624
Premises
Sawpit Creek Sewage Treatment Plant, Kosciuszko National Park, Sawpit Creek NSW 2627
Monitoring points
There are 3 monitoring points:
- Monitoring Point 1 – Outlet from the final treatment pond to an underground absorption trench
- Monitoring Point 2 – Sawpit Creek Upstream
- Monitoring Point 3 – Sawpit Creek Downstream.
View map of monitoring points (PDF 824KB).
The monitoring frequency required by Environment Protection Licence No. 447 for all points is monthly.
Pollutant monitoring data
Regular monitoring and reporting of specified pollutants is required by Environment Protection Licence No. 447:
2024–2025 data
Monitoring point 1 – Discharge to groundwater effluent quality monitoring
The outlet from the final treatment pond to an underground absorption trench.
| Sample date | pH | Nitrogen – ammonia (mg/L) | Nitrogen – total (mg/L) | Phosphorus total (mg/L) | Total suspended solids (mg/L) | Biochemical oxygen demand (mg/L) | Oil & grease (mg/L) | Faecal coliforms (cfu/100mL) | Data obtained | Data published |
|---|---|---|---|---|---|---|---|---|---|---|
| 02-Oct-24 | 7.9 | <0.1 | 4.6 | 0.06 | 2 | <2 | <1 | <1 | 15-Oct-24 | 17-Oct-24 |
| 30-Oct-24 | 7.7 | <0.1 | 3.6 | 0.03 | <2 | <2 | <1 | <2 | 11-Nov-24 | 12-Nov-24 |
Monitoring point 2 – Ambient water quality monitoring (Sawpit Creek Upstream)
| Sample date | pH | Nitrogen – ammonia (mg/L) | Nitrogen – total (mg/L) | Phosphorus total (mg/L) | Total suspended solids (mg/L) | Biochemical oxygen demand (mg/L) | Faecal coliforms (cfu/100mL) | Data obtained | Data published |
|---|---|---|---|---|---|---|---|---|---|
| 02-Oct-24 | 7.5 | 0.005 | 0.10 | 0.01 | 2 | <2 | 8 | 15-Oct-24 | 17-Oct-24 |
| 30-Oct-24 | 7.2 | 0.002 | 0.13 | 0.01 | <2 | <2 | 19 | 11-Nov-24 | 12-Nov-24 |
Monitoring point 3 – Ambient water quality monitoring (Sawpit Creek Downstream)
| Sample date | pH | Nitrogen – ammonia (mg/L) | Nitrogen – total (mg/L) | Phosphorus total (mg/L) | Total suspended solids (mg/L) | Biochemical oxygen demand (mg/L) | Faecal coliforms (cfu/100mL) | Data obtained | Data published |
|---|---|---|---|---|---|---|---|---|---|
| 02-Oct-24 | 7.7 | 0.005 | 0.10 | 0.01 | 3 | <2 | 14 | 15-Oct-24 | 17-Oct-24 |
| 30-Oct-24 | 7.3 | 0.004 | 0.08 | <0.01 | <2 | <2 | 7 | 11-Nov-24 | 12-Nov-24 |