Sawpit Creek Sewage Treatment Plant

The Sawpit Creek Sewage Treatment Plant treats all wastewater from the Kosciuszko Mountain Retreat tourist park.

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 825KB).

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.

Current year | 2022–2023 | 2021–2022 | 2020–2021 | 2019–2020 | 2018–2019

2023–2024 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)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Oil &
grease		 Faecal
coliforms		 Data obtained Data published


mg/L mg/L mg/L mg/L mg/L mg/L cfu/100mL

18-Oct-23 8.0 0.2 2.6 0.04 16 2 <1 <1 31-Oct-23 1-Nov-23
01-Nov-23 8.4 <0.1 2.9 0.03 16 6 <1 <1 14-Nov-23 15-Nov-23
29-Nov-23 8.1 <0.1 3.0 0.01 4 8 <1 149 8-Dec-23 12-Dec-23
27-Dec-23 7.3 0.2 4.1 <0.01 8 2 <1 <2 9-Jan-24 12-Jan-24
24-Jan-24 7.8 <0.01 3.5 0.05 4 <2 <1 <1 7-Feb-24 15-Feb-24
21-Feb-24 8.0 <0.01 4.3 0.08 3 <2 <1 1 6-Mar-24 7-Mar-24
20-Mar-24 8.0 0.1 2.6 <0.01 2 <2 <1 <1 3-Apr-24 9-Apr-24 
17-Apr-24 8.0 <0.1 2.8 0.02 2 <2 <1 1 1-May-24 2-May-24
15-May-24 7.9 <0.1 2.4 0.02 <2 <2 <1 <1 23-May-24 3-Jun-24
12-Jun-24 7.7 0.3 3.7 0.01 3 <2 <1 <1 24-Jun-24 25-Jun-24

Monitoring point 2 – Ambient water quality monitoring (Sawpit Creek Upstream)

Sample date pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical oxygen
demand		 Faecal
coliforms		 Data obtained Data published


mg/L mg/L mg/L mg/L mg/L cfu/100ml

18-Oct-23 7.7 0.014 0.14 <0.01 3 <2 4 31-Oct-23 1-Nov-23
01-Nov-23 7.9 0.011 0.07 <0.01 3 <2 3 14-Nov-23 15-Nov-23
29-Nov-23 7.6 0.010 1.28 0.15 106 2 7,800 8-Dec-23 12-Dec-23
27-Dec-23 7.5 <0.002 0.37 <0.01 7 <2 34 9-Jan-24 12-Jan-24
24-Jan-24 7.4 <0.002 0.14 <0.01 4 <2 12 7-Feb-24 15-Feb-24
21-Feb-24 7.5 <0.002 0.20 0.02 3 <2 45 6-Mar-24; 7-Mar-24
 20-Mar-24 7.7 0.005 0.14 <0.01 4 <2 56 3-Apr-24 9-Apr-24
17-Apr-24 7.7 0.006 0.12 0.01 5 <2 14 1-May-24 2-May-24
15-May-24 7.6 0.007 0.17 0.02 2 <2 3 23-May-24 3-Jun-24
12-Jun-24 7.0 0.004 0.31 0.02 10 <2 18 24-Jun-24 25-Jun-24

Monitoring point 3 – Ambient water quality monitoring (Sawpit Creek Downstream)

Sample date pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical oxygen
demand		 Faecal
coliforms		 Data obtained Data published


mg/L mg/L mg/L mg/L mg/L cfu/100ml

18-Oct-23 7.1 <0.002 0.09 <0.01 3 <2 4 31-Oct-23 1-Nov-23
01-Nov-23 7.6 0.015 0.06 0.01 <2 <2 3 14-Nov-23 15-Nov-23
29-Nov-23 7.2 0.009 1.40 0.17 146 3 4,100 8-Dec-23 12-Dec-23
27-Dec-23 7.2 0.007 0.32 <0.01 9 <2 48 9-Jan-24 12-Jan-24
24-Jan-24 7.4 <0.002 0.16 0.01 3 <2 15 7-Feb-24 15-Feb-24
21-Feb-24 7.4 0.002 0.19 0.02 4 <2 46 6-Mar-24 7-Mar-24
20-Mar-24 7.4 0.008 0.14 <0.01 3 <2 40 3-Apr-24 9-Apr-24
17-Apr-24 7.5 0.002 0.12 0.02 <2 <2 74 1-May-24 2-May-24
15-May-24 7.3 0.008 0.22 0.02 2 <2 6 23-May-24 3-Jun-24
12-Jun-24 6.9 0.114 0.42 0.02 10 <2 15 24-Jun-24 25-Jun-24