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-12	7.4	0.20	1.6	0.09	13	<2	<1	<1	2.3	26-Jun-12	09-Jul-12
04-Jul-12	7.5	9	16	0.39	18	6	<1	<2	1.6	10-Jul-12	16-Jul-12
18-Jul-12	7.5	1.7	5.4	0.24	12	4	<1	<2	1.7	24-Jul-12	02-Aug-12
01-Aug-12	7.6	0.9	5.6	0.21	12	3	<1	<2	2.0	09-Aug-12	14-Aug-12
15-Aug-12	7.5	1.50	6.1	0.37	22	5.0	<1	<2	4.1	21-Aug-12	29-Aug-12
29-Aug-12	7.3	1.2	6.2	0.20	8	3.0	<1	<1	1.1	02-Sep-12	07-Sep-12
12-Sep-12	7.4	0.2	2.7	0.10	6	<2	<1	<2	1.0	18-Sep-12	24-Sep-12
26-Sep-12	7.1	0.6	6.9	0.06	6	<2	<1	<2	0.88	03-Oct-12	08-Oct-12
10-Oct-12	7.4	<0.1	0.5	0.03	4	<2	<2	<2	0.76	17-Oct-12	25-Oct-12
24-Oct-12	9.4	<0.1	1.2	0.08	2	<2	<1	<2	2.7	30-Oct-12	01-Nov-12
07-Nov-12	9.3	0.6	2.1	0.06	4	2	<1	<1	2.3	14-Nov-12	30-Nov-12
05-Dec-12		*no discharge
09-Jan-13	7.9	<0.1	2.1	0.27	4	<2	<1	No discharge	0.35	15-Jan-13	22-Jan-13
06-Feb-13	8.1	0.9	2.6	0.09	6	<2	<1	<1	0.37	13-Feb-13	20-Feb-13
06-Mar-13	8.5	0.3	3.8	0.06	8	2	<1	<1	1.0	13-Mar-13	18-Mar-13
03-Apr-13	8.5	2.1	15	0.08	9	4	<1	<2	0.23	18-Apr-13	23-Apr-13
01-May-13	8.3	0.30	6.5	0.07	3	<2	<1	<2	0.45	08-May-13	13-May-13
29-May-13
Conc. Limit (90%ile)	6.5-8.5	2	10	0.3	15	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-12	6.6	<.01	0.08	<0.01	<2	<2	<2	0.05	26-Jun-12	09-Jul-12
04-Jul-12	6.7	<0.1	0.08	<0.01	<2	<2	<2	0.05	10-Jul-12	16-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-12	6.7	<0.1	0.06	<0.01	<2	<2	<2	0.05	09-Aug-12	14-Aug-12
15-Aug-12	6.8	<0.1	0.10	<0.01	2	<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	4.9	0.32	<2	<2	<2	0.13	03-Oct-12	08-Oct-12
10-Oct-12	6.6	<0.1	0.09	<0.01	<2	<2	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	<2	8	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-13	7.0	<0.1	0.12	<0.01	<2	<2	20	0.07	15-Jan-13	22-Jan-13
06-Feb-13	7.0	<0.1	0.11	<0.01	<2	<2	82	0.04	13-Feb-13	20-Feb-13
06-Mar-13	6.9	<0.1	0.08	<0.01	<2	<2	6	0.06	13-Mar-13	18-Mar-13
03-Apr-13	7.0	<0.1	0.09	<0.01	<2	<2	2	0.06	18-Apr-13	23-Apr-13
01-May-13	7.0	<0.1	0.08	<0.01	<2	<2	<2	0.07	08-May-13	13-May-13
29-May-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-12	6.6	<0.1	0.09	<0.01	<2	<2	<2	0.07	26-Jun-12	09-Jul-12
04-Jul-12	7.1	<0.60	1.1	0.02	<2	<2	<2	0.13	10-Jul-12	16-Jul-12
18-Jul-12	7.1	<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-12	29-Aug-12
29-Aug-12	6.9	<0.1	0.37	0.02	2	<2	<2	0.14	05-Sep-12	07-Sep-12
12-Sep-12	6.9	<0.1	0.14	<0.01	<2	<2	4	0.08	18-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	8	0.20	14-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	3	<2	18	0.07	15-Jan-13	22-Jan-13
06-Feb-13	7.1	<0.1	0.22	<0.01	<2	<2	44	0.06	13-Feb-13	20-Feb-13
06-Mar-13	7.0	<0.1	0.14	<0.01	<2	<2	18	0.08	13-Mar-13	18-Mar-13
03-Apr-13	6.9	<0.1	0.12	<0.01	<2	<2	4	0.06	18-Apr-13	23-Apr-13
01-May-13	6.9	<0.1	0.08	<0.01	<2	<2	<2	0.07	08-May-13	13-May-13
29-May-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.