Perisher Sewage Treatment Plant: Pollutant monitoring data archive

Regular monitoring and reporting of specified pollutants at the Perisher Sewage Treatment Plant is required by Environment Protection Licence No. 1797.

Licence

View the Environment Protection Licence No. 1797 terms and conditions.

Licensee
State of New South Wales (Department of Planning and Environment)
PO Box 41
Perisher Valley NSW 2624

Premises
Perisher Sewage Treatment System including the STP at
North Perisher Road
Perisher Valley NSW 2624

Monitoring points
There are 3 monitoring points.

  • Monitoring Point 1 – Discharge from UV chamber
  • Monitoring Point 2 – Perisher Creek Upstream
  • Monitoring Point 3 – Perisher Creek Downstream

View map of monitoring points (PDF 660KB).

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.

Pollutant monitoring data

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

2022–2023 data

Monitoring point 1 – Discharge to waters effluent quality monitoring

Discharge from the UV chamber to Perisher Creek.

Date pH Nitrogen (ammonia) Nitrogen (total) Phosphorus (total) Total suspended solids Biochemical oxygen demand  Oil & grease Faecal coliforms Total aluminium Data obtained Data published
    mg/L mg/L mg/L mg/L mg/L mg/L cfu/100mL mg/L    
08-Jun-21 7.2 <0.1 1.5 <0.01 23 28 <1 840.0 0.65 21-Jun-22 12-July-22
06-Jul-22 7.5 0.3 2.0 0.05 <2 <2 <1 <2 0.23 14-Jul-22 21-Jul-22
20-Jul-22 7.2 0.3 2.6 0.02 4 <2 <1 <1 0.38 4-Aug-22 9-Aug-22
03-Aug-22 7.8 0.1 2.4 0.05 2 <2 <1 2.0 0.08 16-Aug-22 16-Aug-22
17-Aug-22 7.8 0.5 4.1 0.08 6 <2 <1 <1 0.52 30-Aug-22 30-Aug-22
31-Aug-22 7.7 1.0 3.7 0.18 6 <2 <1 3.0 0.62 8-Sep-22 20-Sep-22
14-Sep-22 7.0 1.3 3.4 0.08 6 6 <1 <1 0.43 23-Sep-22 4-Oct-22
28-Sep-22 7.6 0.6 2.1 0.14 12 3 <1 <1 0.73 11-Oct-22 17-Oct-22
26-Oct-22 7.8 1.1 5.1 0.14 11 6 <1 <1 0.67 7-Nov-22 23-Nov-22
23-Nov-22 7.4 1.0 2.4 0.08 5 4 <1 <1 0.26 5-Dec-22 8-Dec-22
21-Dec-22 7.8 0.5 3.0 0.08 4 <2 <1 <1 0.07 4-Jan-23 9-Jan-22
24-Jan-23 7.1 0.2 1.8 <0.01 5 53 <1 <1 0.29 6-Feb-23 16-Feb-23
22-Feb-23 6.9 <0.1 0.9 0.04 3 <2 <1 1.0 0.08 6-Mar-23 8-Mar-23
22-Mar-23 7.6 0.2 3.5 0.05 3 2 <1 2.0 0.05 31-Mar-23 4-Apr-23
19-Apr-23 8.0 <0.1 2.4 0.16 6 <2 <1 <1 0.39 5-May-23 9-May-23
17-May-23 8.1 0.2 3.7 0.09 6 3 <1 <1 0.64 13-Jun-23 19-Jun-23

Monitoring point 2 – Ambient water monitoring (Perisher Creek upstream)

Date pH Nitrogen (ammonia) Nitrogen (total) Phosphorus (total) Total suspended solids Biochemical oxygen demand Faecal coliforms Total aluminium Data obtained Data published
    mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L    
08-Jun-22 6.7 <0.002 0.07 <0.01 <2 <2 <1 0.04 21-Jun-22 12-Jul-22
06-Jul-22 7.2 0.026 0.10 <0.01 <2 <2 <1 0.06 14-Jul-22 21-Jul-22
20-Jul-22 6.7 0.002 0.09 <0.01 2 <2 <1 0.05 4-Aug-22 9-Aug-22
03-Aug-22 6.9 0.018 <0.05 <0.01 <2 <2 <1 0.05 16-Aug-22 16-Aug-22
17-Aug-22 6.8 <0.002 0.10 <0.01 <2 <2 <1 0.08 30-Aug-22 30-Aug-22
31-Aug-22 6.9 <0.002 0.12 <0.01 <2 <2 9 0.09 8-Sep-22 20-Sep-22
14-Sep-22 6.6 <0.002 0.06 <0.01 <2 <2 <1 0.07 23-Sep-22 4-Oct-22
28-Sep-22 7.1 0.024 0.18 0.01 14 <2 12 0.44 11-Oct-22 17-Oct-22
26-Oct-22 6.8 <0.002 0.09 <0.01 <2 <2 2 0.09 7-Nov-22 23-Nov-22
23-Nov-22 6.6 <0.002 0.10 <0.01 <2 <2 <1 0.10 5-Dec-22 8-Dec-22
21-Dec-22 6.7 0.003 0.07 <0.01 <2 <2 <1 0.07 4-Jan-23 9-Jan-23
24-Jan-23 6.5 0.004 0.15 <0.01 2 <2 11 0.10 6-Feb-23 16-Feb-23
22-Feb-23 6.8 0.006 0.10 <0.01 <2 <2 54 0.08 6-Mar-23 8-Mar-23
22-Mar-23 6.3 <0.002 0.14 <0.01 5 2 120 0.19 31-Mar-23 4-Apr-23
19-Apr-23 7.4 0.006 0.09 <0.01 <2 <2 1 0.09 05-May-23 9-May-23
17-May-23 7.4 0.013 <0.05 <0.01 <2 <2 <1 0.07 13-Jun-23 19-Jun-23

Monitoring point 3 – Ambient water monitoring (Perisher Creek downstream)

Date pH Nitrogen (ammonia) Nitrogen (total) Phosphorus (total) Total suspended solids Biochemical oxygen demand Faecal coliforms Total aluminium Data obtained Data published
    mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L    
08-Jun-22 6.6 <0.002 <0.05 <0.01 <2 <2 <1 <0.05 21-Jun-22 12-July-22
06-Jul-22 7.2 0.028 0.19 <0.01 <2 <2 3 0.06 14-Jul-22 21-Jul-22
20-Jul-22 6.8 0.022 0.30 <0.01 <2 <2 <1 0.07 4-Aug-22 9-Aug-22
03-Aug-22 7.2 0.019 0.37 <0.01 <2 <2 4 0.10 16-Aug-22 16-Aug-22
17-Aug-22 6.9 0.010 0.20 <0.01 <2 <2 3 0.08 30-Aug-22 30-Aug-22
31-Aug-22 6.8 <0.002 0.12 <0.01 <2 <2 3 0.10 8-Sep-22 30-Aug-22
14-Sep-22 6.5 0.004 0.11 <0.01 <2 <2 <1 0.07 23-Sep-22 4-Oct-22
28-Sep-22 6.7 0.004 0.12 <0.01 14 <2 9 0.42 11-Oct-22 17-Oct-22
26-Oct-22 6.7 0.005 0.11 <0.01 <2 <2 <2 0.09 7-Nov-22 23-Nov-22
23-Nov-22 6.5 0.003 0.13 <0.01 <2 <2 1 0.10 5-Dec-22 8-Dec-22
21-Dec-22 6.7 0.003 0.07 <0.01 2 <2 <1 0.07 4-Jan-23 9-Jan-23
24-Jan-23 6.5 0.003 0.13 <0.01 2 <2 16 0.11 6-Feb-23 16-Feb-23
22-Feb-23 6.7 0.004 0.09 <0.01 4 <2 70 0.08 6-Mar-23 8-Mar-23
22-Mar-23 6.8 0.029 0.56 0.01 4 <2 116 0.15 31-Mar-23 4-Apr-23
19-Apr-23 7.2 <0.002 0.09 <0.01 <2 <2 <1 0.12 5-May-23 9-May-23
17-May-23 7.0 <0.002 <0.05 <0.01 <2 <2 2 0.06 13-Jun-23 19-Jun-23

2021–2022 data

Date pH Nitrogen (ammonia) Nitrogen (total) Phosphorus (total) Total suspended solids Biochemical oxygen demand Oil & grease Faecal coliforms Total aluminium Data obtained Data published
mg/L mg/L mg/L mg/L mg/L mg/L cfu/100mL mg/L
09-Jun-21 7.5 0.5 2.7 0.22 8 <2 <1 <1 1.92 22-Jun-21 22-Jun-21
23-Jun-21 7.3 0.3 4.4 0.02 3 <2 <1 <1 0.58 05-Jul-21 05-Jul-21
07-Jul-21 7.4 0.4 4.3 0.16 5 <2 <1 <1 0.50 16-Jul-21 19-Jul-21
21-Jul-21 7.5 1.2 2.9 0.03 2 <2 <1 <1 0.43 30-Jul-21 02-Aug-21
04-Aug-21 7.3 2.0 7.2 0.09 3 <2 <1 1 0.54 17-Aug-21 17-Aug-21
18-Aug-21 7.4 0.1 3.8 0.02 3 <2 <1 <1 0.50 25-Aug-21 26-Aug-21
01-Sep-21 7.5 0.2 3.5 0.03 6 <2 <1 <1 0.45 10-Sep-21 10-Sep-21
15-Sep-21 7.4 0.9 4.6 0.06 8 4 <1 <1 0.50 27-Sep-21 05-Oct-21
29-Sep-21 7.4 0.3 4.9 0.06 2 <2 <1 1 0.09 11-Oct-21 12-Oct-21
27-Oct-21 7.7 0.4 2.9 0.06 7 2 <1 <1 0.10 08-Nov-21 08-Dec-21
24-Nov-21 7.3 0.2 2.7 0.06 3 <2 <1 <1 0.14 06-Dec-21 08-Dec-21
22-Dec-21 7.0 <0.1 3.1 0.03 <2 <2 <1 <1 0.06 05-Jan-22 13-Jan-22
19-Jan-22 7.5 <0.1 0.2 <0.01 8 <2 <1 <1 0.33 31-Jan-22 01-Feb-22
16-Feb-22 8.1 1.5 4.3 0.04 3 <2 <1 <1 0.28 24-Feb-22 01-Mar-22
16-Mar-22 7.8 0.2 4.1 0.03 2 <2 <1 1 0.23 25-Mar-22 30-Mar-22
13-Apr-22 7.2 0.4 2.0 0.04 5 <2 <1 9 0.13 27-Apr-22 28-Apr-22
11-May-22 8.1 0.3 4.6 0.08 5 8 <1 <1 0.18 20-May-22 30-May-22

Date pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Faecal
coliforms		 Total
aluminium		 Data obtained Data published
mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L
09-Jun-21 7.6 <0.002 0.07 <0.01 <2 <2 <1 0.06 09-Jun-21 22-Jun-21
23-Jun-21 7.6 <0.002 0.07 <0.01 <2 <2 <1 0.06 05-Jul-21 05-Jul-21
07-Jul-21 7.7 <0.002 0.06 <0.01 <2 <2 1 0.06 16-Jul-21 19-Jul-21
21-Jul-21 7.5 0.007 0.09 <0.01 <2 <2 <1 0.06 30-Jul-21 02-Aug-21
04-Aug-21 7.7 0.006 0.08 <0.01 <2 <2 1 0.09 17-Aug-21 17-Aug-21
18-Aug-21 7.5 0.006 0.08 <0.01 <2 <2 <1 0.06 25-Aug-21 26-Aug-21
01-Sep-21 7.8 0.005 0.07 <0.01 <2 <2 1 0.06 10-Sep-21 10-Sep-21
15-Sep-21 7.5 0.010 0.07 <0.01 <2 <2 <1 0.06 27-Sep-21 05-Oct-21
29-Sep-21 7.7 0.007 0.12 <0.01 <2 <2 7 0.20 11-Oct-21 12-Oct-21
27-Oct-21 7.8 0.002 0.10 <0.01 <2 <2 <1 0.08 08-Nov-21 08-Dec-21
24-Nov-21 7.6 0.002 0.07 <0.01 <2 <2 3 0.08 06-Dec-21 08-Dec-21
22-Dec-21 6.6 <0.002 0.08 <0.01 <2 <2 5 0.10 05-Jan-22 13-Jan-22
19-Jan-22 7.7 <0.002 0.11 <0.01 <2 <2 6 0.10 31-Jan-22 01-Feb-22
16-Feb-22 7.1 0.018 0.11 <0.01 2 <2 6 0.09 24-Feb-22 01-Mar-22
16-Mar-22 6.7 0.009 0.10 <0.01 <2 <2 1 0.09 25-Mar-22 30-Mar-22
13-Apr-22 7.3 0.008 0.09 <0.01 3 <2 <1 0.09 27-Apr-22 28-Apr-22
11-May-22 7.1 <0.002 0.09 <0.01 <2 <2 <1 0.07 20-May-22 30-May-22

Date pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Faecal
coliforms		 Total
aluminium		 Data obtained Data published
mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L
09-Jun-21 7.5 0.005 0.16 <0.01 <2 <2 <1 0.08 09-Jun-21 22-Jun-21
23-Jun-21 7.5 <0.002 <0.05 <0.01 <2 <2 1 0.06 05-Jul-21 05-Jul-21
07-Jul-21 7.7 0.005 0.14 <0.01 <2 <2 <1 0.07 16-Jul-21 19-Jul-21
21-Jul-21 7.3 0.020 0.09 <0.01 4 <2 1 0.14 30-Jul-21 02-Aug-21
04-Aug-21 7.4 0.018 0.09 <0.01 <2 <2 1 0.08 17-Aug-21 17-Aug-21
18-Aug-21 7.1 0.008 0.19 <0.01 <2 <2 <1 0.07 25-Aug-21 26-Aug-21
01-Sep-21 7.6 0.019 0.30 <0.01 <2 <2 <1 0.07 10-Sep-21 10-Sep-21
15-Sep-21 7.3 0.016 0.15 <0.01 <2 <2 <1 0.06 27-Sep-21 05-Oct-21
29-Sep-21 7.6 0.006 0.08 <0.01 3 <2 5 0.12 11-Oct-21 12-Oct-21
27-Oct-21 7.6 0.046 0.13 0.02 <2 <2 <1 0.09 08-Nov-21 08-Dec-21
24-Nov-21 6.8 0.002 <0.05 <0.01 <2 <2 <1 0.02 06-Dec-21 08-Dec-21
22-Dec-21 6.5 0.011 0.07 <0.01 <2 <2 5 0.10 05-Jan-22 13-Jan-22
19-Jan-22 7.4 0.013 0.11 <0.01 <2 <2 3 0.10 31-Jan-22 01-Feb-22
16-Feb-22 7.0 0.016 0.17 <0.01 2 <2 8 0.09 24-Feb-22 01-Mar-22
16-Mar-22 6.7 0.012 0.10 <0.01 <2 <2 3 0.09 25-Mar-22 30-Mar-22
13-Apr-22 7.2 0.008 0.09 <0.01 <2 <2 3 0.09 27-Apr-22 28-Apr-22
11-May-22 6.9 <0.002 0.09 <0.01 <2 <2 <1 0.07 20-May-22 30-May-22

2020–2021 data

Date pH Nitrogen (ammonia) Nitrogen (total) Phosphorus (total) Total suspended solids Biochemical oxygen demand  Oil & grease Faecal coliforms Total aluminium Data obtained Data published
    mg/L mg/L mg/L mg/L mg/L mg/L cfu/100mL mg/L    
24-Jun-20 7.9 <0.1 2.1 0.09 3 <2 <1 <1 0.06 3-Jul-20 12-Jul-20
8-Jul-20 7.7 0.9 5.1 0.18 5 2 <1 8 0.06 16-Jul-20 21-Jul-20
22-Jul-20 7.9 0.1 1.6 0.13 <2 <2 <1 <1 0.11 31-Jul-20 5-Aug-20
05-Aug-20 7.6 0.5 2.9 0.08 2 <2 <1 <1 0.25 13-Aug-20 18-Aug-20
19-Aug-20 7.3 0.4 3.9 0.09 4 <2 <1 1 0.39 31-Aug-20 14-Sep-20
02-Sep-20 7.8 0.3 4.5 0.18 9 3 <1 9 0.33 10-Sep-20 16-Sep-20
16-Sep-20 7.9 0.1 0.9 0.04 3 <2 <1 <1 0.30 24-Sep-20 1-Oct-20
30-Sep-20 7.8 0.5 3.0 0.11 4 <2 <1 9 0.50 13-Oct-20 15-Oct-20
14-Oct-20 7.6 <0.1 2.7 0.04 2 <2 <1 <1 0.10 23-Oct-20 31-Oct-20
11-Nov-20 7.9 <0.1 4.9 0.04 2 <2 <1 <1 0.11 19-Nov-20 30-Nov-20
09-Dec-20 7.9 0.1 2.7 0.04 <2 <2 <1 <1 0.05 21-Dec-20 22-Dec-20
06-Jan-21 7.6 <0.1 2.3 0.11 6 2 <1 6 0.21 18-Jan-21 20-Jan-21
03-Feb-21 8.1 <0.1 3.0 0.11 4 <2 <1 1 0.06 12-Feb-21 18-Feb-21
03-Mar-21 7.8 0.6 2.9 0.20 2 <2 <1 54 0.15 16-Mar-21 18-Mar-21
31-Mar-21 7.9 1.0 4.0 0.09 2 <2 <1 <2 0.11 14-Apr-21 19-Apr-21
28-Apr-21 8.3 0.3 3.6 0.07 2 3 <1 <1 0.08 06-May-21 10-May-21
26-May-21 7.5 2.1 3.3 0.12 8 <2 <1 1 0.92 08-Jun-21 10-Jun-21
Date pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Faecal
coliforms		 Total
aluminium		 Data obtained Data published
    mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L    
24-Jun-20 7.2 0.010 0.08 <0.01 <2 <2 <1 0.09 3-Jul-20 12-Jul-20
8-Jul-20 7.3 <0.002 0.06 <0.01 <2 <2 <1 0.07 16-Jul-20 21-Jul-20
22-Jul-20 7.3 0.005 0.12 <0.01 <2 <2 <1 0.07 31-Jul-20 5-Aug-20
05-Aug-20 6.9 0.007 0.10 <0.01 <2 <2 <1 0.08 13-Aug-20 18-Aug-20
19-Aug-20 7.2 0.003 0.08 0.01 <2 <2 <1 0.06 31-Aug-20 14-Sep-20
02-Sep-20 7.0 0.004 0.10 <0.01 <2 <2 <1 0.07 10-Sep-20 16-Sep-20
16-Sep-20 7.6 0.002 0.08 <0.01 <2 <2 <1 0.08 24-Sep-20 1-Oct-20
30-Sep-20 7.4 <0.002 0.07 <0.01 <2 <2 4 0.07 13-Oct-20 15-Oct-20
14-Oct-20 7.4 0.003 0.10 <0.01 <2 <2 2 0.08 23-Oct-20 31-Oct-20
11-Nov-20 7.7 0.002 0.08 <0.01 <2 <2 <1 0.08 19-Nov-20 30-Nov-20
09-Dec-20 7.6 <0.002 0.09 <0.01 <2 <2 6 0.09 21-Dec-20 22-Dec-20
06-Jan-21 7.6 0.018 0.14 <0.01 <2 <2 7 0.11 18-Jan-21 20-Jan-21
03-Feb-21 7.7 <0.002 <0.05 <0.01 <2 <2 9 0.10 12-Feb-21 18-Feb-21
03-Mar-21 7.3 <0.002 0.08 <0.01 2 <2 34 0.06 16-Mar-21 18-Mar-21
31-Mar-21 7.5 0.008 0.09 <0.01 <2 <2 4 0.10 14-Apr-21 19-Apr-21
28-Apr-21 8.1 <0.002 0.08 <0.01 <2 <2 1 0.04 06-May-21 10-May-21
26-May-21 7.4 <0.002 0.16 <0.01 <2 <2 6 0.15 08-Jun-21 10-Jun-21
Date pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Faecal
coliforms		 Total
aluminium		 Data obtained Data published
    mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L    
24-Jun-20 6.9 0.007 0.12 <0.01 <2 <2 1 0.07 3-Jul-20 12-Jul-20
8-Jul-20 6.9 0.028 0.24 0.01 5 <2 <1 0.16 16-Jul-20 21-Jul-20
22-Jul-20 6.9 <0.002 0.08 <0.01 <2 <2 <1 0.06 31-Jul-20 5-Aug-20
05-Aug-20 7.0 0.003 0.24 <0.01 <2 <2 <1 0.08 13-Aug-20 18-Aug-20
19-Aug-20 6.9 0.011 0.24 0.01 <2 <2 <1 0.08 31-Aug-20 14-Sep-20
02-Sep-20 7.0 0.018 0.18 <0.01 <2 <2 <1 0.08 10-Sep-20 16-Sep-20
16-Sep-20 7.3 0.004 0.11 <0.01 <2 <2 <1 0.08 24-Sep-20 1-Oct-20
30-Sep-20 7.1 0.003 0.11 <0.01 <2 <2 <1 0.08 13-Oct-20 15-Oct-20
14-Oct-20 7.1 <0.002 0.10 0.01 <2 <2 <1 0.08 23-Oct-20 31-Oct-20
11-Nov-20 7.3 0.012 0.06 <0.01 <2 <2 1 0.08 19-Nov-20 30-Nov-20
09-Dec-20 7.3 <0.002 0.14 <0.01 <2 <2 7 0.09 21-Dec-20 22-Dec-20
06-Jan-21 7.4 0.004 0.14 <0.01 2 <2 25 0.11 18-Jan-21 20-Jan-21
03-Feb-21 7.4 <0.002 0.09 <0.01 <2 <2 23 0.09 12-Feb-21 18-Feb-21
03-Mar-21 7.3 <0.002 0.06 <0.01 <2 <2 27 0.05 16-Mar-21 18-Mar-21
31-Mar-21 7.4 0.012 0.08 <0.01 <2 <2 6 0.09 14-Apr-21 19-Apr-21
28-Apr-21 7.9 <0.002 0.05 <0.01 <2 <2 <1 0.05 06-May-21 10-May-21
26-May-21 7.2 <0.002 0.15 <0.01 <2 <2 16 0.15 08-Jun-21 10-Jun-21

2019–2020 data

Date              pH Nitrogen (ammonia) Nitrogen (total) Phosphorus (total) Total suspended solids  BOD Oil & grease Faecal  coliforms Total aluminium  Data obtained     Data published    
     mg/L  mg/L mg/L  mg/L  mg/L   mg/L  cfu/100mL mg/L     
26-Jun-19 7.7 0.6 3.5 0.34 4 <2 <1 6.0 0.38 9-Jul-19 9-Jul-19
10-Jul-19 7.9 0.6 6.3 0.22 8 <2 <1 <2 1.34 26-Jul-19 30-Jul-19
24-Jul-19 7.7 0.8 3.5 0.20 8 <2 <1 <2 0.74 6-Aug-19 15-Aug-19
7-Aug-19 7.8 1.4 3.8 0.31 3 <2 <1 <2 0.23 26-Aug-19 5-Sep-19
21-Aug-19 7.8 0.8 3.2 0.20 6 <2 <1 1 0.31 9-Sep-19 17-Sep-19
4-Sep-19 7.9 0.7 2.8 0.13 3 <2 <1 <1 0.20 16-Sep-19 1-Oct-19
18-Sep-19 7.8 0.5 3.0 0.14 4 <2 <1 <1 0.38 27-Sep-19 1-Oct-19
16-Oct-19 7.0 <0.1 0.7 0.02 14 <2 <1 <1 6.91 1-Nov-19 4-Nov-19
13-Nov-19 8.0 1.1 5.2 0.14 4 <1 <1 <1 0.15 28-Nov-19 4-Dec-19
11-Dec-19 7.7 <0.1 0.5 0.02 4 <2 <1 <1 0.20 9-Jan-20 14-Jan-20
08-Jan-20 8.2 <0.1 1.6 0.08 9 4 <1 110 0.15 24-Jan-20 17-Feb-20
12-Feb-20 8.1 0.2 3.7 0.12 3 <2 <1 <1 0.17 27-Feb-20 5-Mar-20
04-Mar-20 8.4 <0.1 3.2 0.23 10 4 <1 <1 0.50 19-Mar-20 24-Mar-20
1-Apr-20 8.3 <0.1 1.8 0.12 5 3 <1 <2 0.12 17-Apr-20 20-Apr-20
29-Apr-20 8.2 <0.1 1.6 0.05 4 2 <1 <1 0.04 11-May-20 14-May-20
27-May-20 8.1 0.6 6.3 0.14 4 <2 <1 <1 0.07 5-Jun-20 11-Jun-20
Date              pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Faecal
coliforms		 Total
aluminium		 Data obtained     Data published    
    mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L    
26-Jun-19 6.8 0.014 0.08 0.01 <2 <2 <2 0.06 9-Jul-19 9-Jul-19
10-Jul-19 6.9 0.002 0.17 0.01 4 <2 <2 0.13 26-Jul-19 30-Jul-19
24-Jul-19 6.8 0.016 0.12 <0.01 <2 <2 28 0.06 6-Aug-19 15-Aug-19
7-Aug-19 6.8 <0.002 0.07 <0.01 <2 <2 <1 0.05 26-Aug-19 5-Sep-19
21-Aug-19 6.9 0.021 0.11 <0.01 <2 <2 <1 0.06 9-Sep-19 17-Sep-19
4-Sep-19 6.9 0.011 0.06 <0.01 <2 <2 <1 0.08 16-Sep-19 1-Oct-19
18-Sep-19 6.8 0.003 0.17 <0.01 4 <2 <1 0.17 27-Sep-19 1-Oct-19
16-Oct-19 6.7 0.003 0.09 <0.01 <2 <2 <1 0.08 1-Nov-19 4-Nov-19
13-Nov-19 6.9 0.014
 0.08
<0.01
<2
<2
<1
0.07
28-Nov-19
4-Dec-19
11-Dec-19 7.0 <0.002 <0.05 <0.01 <2 <2 1 0.05 9-Jan-20 14-Jan-20
08-Jan-20 7.2 0.050 0.12 <0.01 2 <2 8 0.07 24-Jan-20 17-Feb-20
12-Feb-20 6.6 0.033 0.20 <0.01 <2 <2 17 0.17 27-Feb-20 5-Mar-20
04-Mar-20 7.2 0.004 0.08 <0.01 <2 <2 18 0.07 19-Mar-20 24-Mar-20
01-Apr-20 7.3 0.015 0.08 <0.01 <2 <2 <2 0.07 17-Apr-20 20-Apr-20
30-Apr-20 7.1 0.008 0.21 0.03 <2 <2 17 0.64 11-May-20 14-May-20
27-May-20 7.2 <0.002 0.14 <0.01 <2 <2 <1 0.07 5-Jun-20 11-Jun-20
Date              pH Nitrogen
(ammonia)		 Nitrogen
(total)		 Phosphorus
(total)		 Total
suspended solids		 Biochemical
oxygen
demand		 Faecal
coliforms		 Total
aluminium		 Data obtained     Data published    
    mg/L mg/L mg/L mg/L mg/L cfu/100ml mg/L    
26-Jun-19 7.0 0.059 0.33 0.03 <2 <2 2 0.08 9-Jul-19 9-Jul-19
10-Jul-19 7.1 0.019 0.31 0.02 <2 <2 2 0.15 26-Jul-19 30-Jul-19
24-Jul-19 6.6 0.019 0.11 <0.01 <2 <2 5 0.05 6-Aug-19 15-Aug-19
7-Aug-19 7.2 0.110 0.38 0.02 <2 <2 <2 0.07 26-Aug-19 5-Sep-19
21-Aug-19 6.8 0.024 0.11 <0.01 <2 <2 <1 0.06 9-Sep-19 17-Sep-19
4-Sep-19 7.1 0.025 0.12 <0.01 <2 <2 <1 0.06 16-Sep-19 1-Oct-19
18-Sep-19 6.8 0.012 0.16 <0.01 <2 <2 <1 0.09 27-Sep-19 1-Oct-19
16-Oct-19 6.5 <0.002 0.09 <0.01 <2 <2 <1 0.08 1-Nov-19 4-Nov-19
13-Nov-19 6.8 0.014 0.08 <0.01 <2 <2 <1 0.07 28-Nov-19 4-Dec-19
11-Dec-19 7.0 0.005 0.08 <0.01 <2 <2 <1 0.06 9-Jan-20 14-Jan-20
08-Jan-20 7.1 <0.002 0.14 <0.01 <2 <2 2 0.07 24-Jan-20 17-Feb-20
12-Feb-20 6.5 0.018 0.21 <0.01 <2 <2 19 0.16 27-Feb-20 5-Mar-20
04-Mar-20 7.7 0.014 0.69 0.03 3 2 31 0.13 19-Mar-20 24-Mar-20
01-Apr-20 7.6 0.016 0.30 0.01 <2 <2 <2 0.07 17-Apr-20 20-Apr-20
30-Apr-20 6.7 <0.002 0.18 <0.01 <2 <2 7 0.16 11-May-20 14-May-20
27-May-20 6.7 0.003 0.14 <0.01 <2 <2 <1 0.07 5-Jun-20 11-Jun-20