Nature conservation

Parks, reserves and protected areas

Perisher Sewage Treatment Plant

Environment Protection Licence no. 1797

STATE OF NEW SOUTH WALES (OFFICE OF ENVIRONMENT AND HERITAGE)
Kosciuszko Road, Perisher Valley, NSW, 2624

(view this licence)

2011 - 2012 data

2012 - 2013 data

Monitoring point 1 - discharge to waters effluent quality monitoring

Discharge from the UV chamber to Perisher Creek view map (PerisherSTPmonpoints.pdf, 638kb)

Date

pH

Nitrogen(ammonia)mg/L

Nitrogen (total)mg/L

Phosphorus (total) mg/L

Total suspended solids mg/L

BOD mg/L

Oil & grease mg/L

 

Faecal  coliforms cfu/100mL

Total aluminium mg/L

Date obtained    

Date published    

20-Jun-127.40.201.60.0913<2 <1<12.3

26-Jun-12

09-Jul-12
04-Jul-127.59160.39 18 <1<2 1.6 10-Jul-1216-Jul-12 
18-Jul-127.51.75.40.2412<1 <2 1.724-Jul-12 02-Aug-12 
01-Aug-127.60.95.6 0.21 12 <1<2 2.0 09-Aug-12 14-Aug-12
15-Aug-127.5 1.50 6.1 0.37 22 5.0 <1 <2 4.121-Aug-12 29-Aug-12 
29-Aug-127.3 1.2 6.2 0.2083.0<1 <11.1 02-Sep-12 07-Sep-12 
12-Sep-12 7.4 0.2 2.7 0.10 <2 <1 <21.0 18-Sep-12 24-Sep-12 
26-Sep-12 7.1 0.6 6.9 0.06 <2 <1 <2 0.88 03-Oct-12 08-Oct-12 
10-Oct-12 7.4 <0.1 0.5 0.03 <2 <2 <2 0.76 17-Oct-12 25-Oct-12 
24-Oct-12 9.4 <0.1 1.2 0.08 <2 <1 <2 2.730-Oct-12 01-Nov-12 
07-Nov-12 9.3 0.6 2.1 0.06 <1 <1 2.3 14-Nov-12 30-Nov-12 
05-Dec-12   *no
discharge
         
09-Jan-137.9<0.1 2.1 0.27 <2<1 No discharge 0.35 15-Jan-13 22-Jan-13 
06-Feb-138.1 0.9 2.6 0.09 <2 <1<1 0.37 13-Feb-13 20-Feb-13 
06-Mar-138.5 0.3 3.8 0.06 <1 <1 1.0 13-Mar-13 18-Mar-13 
03-Apr-138.5 2.1 15 0.08 <1 <2 0.23 18-Apr-13 23-Apr-13 
01-May-138.3 0.30 6.50.073<2 <1<2 0.45 08-May-13 13-May-13 
29-May-138.1 0.60 10.00.1554<1 <20.4505-Jun-1314-Nov-13
            

Conc. Limit (90%ile)

6.5-8.5 2 100.315 10 2 200 n/a  
*No discharge - catch/balance pond filling after cleaning

Monitoring point 2 - ambient water monitoring (Perisher Creek downstream)

Perisher Creek upstream view map (PerisherSTPmonpoints.pdf, 638kb)

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

Total aluminium mg/L

Date obtained    

Date published   

20-Jun-126.6<.010.08<0.01<2<2<20.05

26-Jun-12

09-Jul-12
04-Jul-12 6.7 <0.10.08<0.01<2<2 <20.05 10-Jul-1216-Jul-12 
18-Jul-12 6.8 <0.1 0.09 <0.01 <2 <2 <2 0.06 24-Jul-12 02-Aug-12 
01-Aug-126.7 <0.1 0.06 <0.01 <2 <2 <20.0509-Aug-12 14-Aug-12 
15-Aug-126.8 <0.1 0.10 <0.01 <2 <2 0.05 21-Aug-12 29-Aug-12 
29-Aug-12 6.6 <0.1 0.25 0.01<2 <2 <2 0.06 05-Sep-12 07-Sep-12 
12-Sep-12 6.7 <0.1 0.11 <0.01 <2 <2 <2 0.07 18-Sep-12 24-Sep-12
26-Sep-12 7.6 

<0.1

4.90.32 <2 <2 <2 0.13 03-Oct-12 08-Oct-12 
10-Oct-12 6.6 <0.1 0.09 <0.01 <2 <2 0.09 17-Oct-12 25-Oct-12 
24-Oct-12 6.5 <0.1 0.08 

<0.01 

<2 <2 <2 0.06 30-Oct-12 01-Nov-12 
07-Nov-12 6.4 <0.1 0.15 <0.01 <2 0.16 14-Nov-12 30-Nov-12 
05-Dec-12 7.0 <0.1 0.15 0.01 13 <2 64 0.64 12-Dec-12 18-Dec-12 
09-Jan-137.0 <0.1 0.12 <0.01<2 <2 20 0.07 15-Jan-13 22-Jan-13 
06-Feb-137.0 <0.1 0.11 <0.01 <2 <2 82 0.04 13-Feb-13 20-Feb-13 
06-Mar-136.9<0.1 0.08 <0.01 <2 <2 60.0613-Mar-13 18-Mar-13 
03-Apr-137.0 <0.1 0.09 <0.01 <2 <2 0.06 18-Apr-13 23-Apr-13 
01-May-137.0 <0.1 0.08 <0.01 <2 <2 <2 0.07 08-May-13 13-May-13 
29-May-136.8 <0.1 0.08 <0.01 <2 <2 <2 0.08 05-Jun-1314-Jun-13 
           

Monitoring point 3 - ambient water monitoring (Perisher Creek downstream)

Perisher Creek downstream view map (PerisherSTPmonpoints.pdf, 638kb)

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

Total aluminium mg/L

Date obtained    

Date published   

20-Jun-126.6<0.10.09<0.01<2<2<20.0726-Jun-1209-Jul-12
04-Jul-127.1<0.601.1 0.02<2<2 <20.1310-Jul-1216-Jul-12 
18-Jul-127.1 <0.10 0.31 <0.01 <2 <2 <2 0.13 24-Jul-12 02-Aug-12 
01-Aug-12 7.0 <0.1 0.15 <0.01 <2 <2<2 0.07 09-Aug-12 14-Aug-12
15-Aug-12 7.0 <0.1 0.24 <0.01 <2<2 <2 0.12 21-Aug-1229-Aug-12 
29-Aug-12 6.9 <0.1 0.370.02 <2 <2 0.14 05-Sep-12 07-Sep-12
12-Sep-12 6.9<0.1 0.14<0.01<2 <2 40.0818-Sep-12 24-Sep-12 
26-Sep-12 6.7 <0.1 0.19 <0.01 <2 <2 <2 0.08 03-Oct-12 08-Oct-12 
10-Oct-12 6.6 <0.1 0.09<0.01<2<2 <2 0.37 17-Oct-12 25-Oct-12 
24-Oct-12 6.7 <0.1 0.09 <0.1 <2 <2 <2 0.10 30-Oct-12 01-Nov-12 
07-Nov-12 6.4 <0.1 0.17 <0.01 <2 <2 0.2014-Nov-12 30-Nov-12 
05-Dec-12 7.0 <0.1 0.09 <0.01 <2 <2 10 0.07 12-Dec-12 18-Dec-12 
09-Jan-13 6.9 <0.1 0.14 <0.01 <2 18 0.07 15-Jan-13 22-Jan-13 
06-Feb-13 7.1 <0.1 0.22 

<0.01

<2

<2 440.0613-Feb-13 20-Feb-13 
06-Mar-13 7.0 <0.1 0.14<0.01 <2 <2 18 0.0813-Mar-1318-Mar-13 
03-Apr-13 6.9 <0.1 0.12 

<0.01 

<2 <2 0.06 18-Apr-13 23-Apr-13 
01-May-13 6.9 <0.1 0.08 <0.01 <2 <2 <20.07 08-May-13 13-May-13 
29-May-13 7.1 <0.1 0.25 <0.01 <2<2 <2 0.0805-Jun-13 14-Jun-13 
           

Monitoring frequency required by Environment Protection Licence No. 1797 for all points is:

  • fortnightly from July to October inclusive
  • monthly from November to June inclusive.
Page last updated: 14 June 2013