|
Environment Protection Licence #3175
The Hallidays Point sewage treatment plant Environment Protection Licence (#3175) specifies concentration limits for specific water quality parameters from treated effluent prior to discharge. These limits are not to be exceeded throughout the licence period occurring annually from 15thof February. Biological oxygen demand (BOD), total suspended solids (TSS), oil and grease are monitored monthly as a requirement of the licence. The relevant concentration limits are listed in table 1.
Groundwater monitoring is also conducted as a requirement of the licence. There are 23 bores associated with the licence (EPA Points 4,6,8,10,11,12,13,14,16,17,18,19,20,22,23,24,25,26,27,29,30,31,32).Groundwater samples are collected quarterly. Parameters monitored include: alkalinity, biological oxygen demand (BOD), conductivity (EC), faecal coliforms (FC), ammonia, total phosphorus, totalkjeldahl nitrogen (TKN) calcium, magnesium, oxidised nitrogen, potassium, sodium and sulfate.
Groundwater monitoring results can be viewed below:
- 21 Feb 2017(PDF, 150KB)
- 22 Nov 2016(PDF, 148KB)
- 30 Aug 2016(PDF, 155KB)
- 17 May 2016(PDF, 196KB)
- 17 Feb 2016(PDF, 236KB)
- 2 Dec 2015(PDF, 228KB)
- 26 Aug 2015(PDF, 143KB)
- 10 June 2015(PDF, 151KB)
- 4 Mar 2015(PDF, 146KB)
- 16 Dec 2014(PDF, 211KB)
- 01 Sept 2014(PDF, 151KB)
- 28 May 2014(PDF, 144KB)
- 26 Feb 2014(PDF, 143KB)
- 20 Nov 2013(PDF, 216KB)
- 24 Oct 2012(PDF, 242KB)
- 02 Aug 2012(PDF, 141KB)
- 16 May 2012(PDF, 145KB)
Table1.Hallidays Point effluent concentration limits for Biological Oxygen Demand, Total Suspended Solids, Oil and Grease.
|
Hallidays Point STP
EPA I.D point No 1.
Discharge to waters
|
BOD
|
TSS
|
Oil & Grease
|
|
mg/L
|
mg/L
|
mg/L
|
|
|
|
|
|
100%ile
|
Limit
|
30
|
30
|
10
|
|