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Information about the work of  Orange City Council, located in the Central West of NSW

Pollution Monitoring


While Orange City Council is committed to managing waste responsibly, the Council is also required by legislation to publicly report on potential pollution from six sites around Orange.

A number of sites operated by Orange City Council are required to have Environmental Protection Licences (EPL) which are administered by the NSW Environmental Protection Authority (EPA) under the Protection of the Environment Operations Act 1997. An EPL allows a business to operate as long as it adheres to certain conditions which are stipulated in each licence.

Orange City Council holds six Environmental Protection Licences as listed below. Click on the EPL number to follow a link to the full licence on the EPAs website.

1646 Orange Sewage Treatment System
3686 Spring Hill Sewage Treatment Plant
5762 Phillip Street Quarry
5956 Ophir Road Resource Recovery Centre
20104 Euchareena Road Resource Recovery Centre
20293 Icely Road Water Treatment Plant

Orange Pollution Monitoring Complaints

If you wish to make a complaint about pollution from a site operated by Orange City Council, please telephone this hotline number.

Complaints can be lodged 24 hours a day on 1300 650 511.


Recent changes have been made to the legislation through the Protection of the Environment Legislation Amendment Act 2011. As a result of these changes, it is compulsory for licensees to publish pollution monitoring data that is required to be collected as a condition of their licence. This applies to data obtained after 31 March 2012 as per Requirements for Publishing Pollution Monitoring Data (EPA March 2012).

How often sites are sampled varies for each site depending on the activity being undertaken and the requirements of the conditional licence for pollution monitoring. Not all licences require pollution monitoring as part of the conditional licence. Links to the City Council’s pollution monitoring data can be found below.

Some EPA monitoring points don’t require pollution monitoring but are for other parameters, such as volumetric flows. Where concentration limits are included in the licence these have been included in the data tables for the pollution monitoring results.

Orange Sewage Treatment Plant

The Orange Sewage Treatment plant services the city of Orange, treating approximately 11 megalitres (ML) of sewage per day. Sewage is mostly composed of household (or domestic) waste. Other wastewater that is treated at the plant includes trade waste discharge such as waste from restaurants and mechanical workshops.

Sewage at this plant is treated to a tertiary level with some of the final effluent being discharged to the creek. The licence is required at this site because of this discharge to the creek and is sampled monthly for potential pollutants. Two more locations at this site are also monitored for pollution, although this is only required annually.

Download the most recent Orange STP pollution monitoring results here.

    Orange WWTP - April 2018


STP Monitoring Points  To view a map of EPA monitoring locations for Orange Sewage Treatment Plant click on the image

   at left.


 Spring Hill Sewage Treatment Plant

The Spring Hill Sewage treatment plant services the villages of Spring Hill and Lucknow. This is a much smaller plant than Orange and consists of a series of ponds with extended aeration. Spring HIll Sewage Treatment PlantDue to the smaller population, the Spring Hill plant treats about 70 kilolitres per day (kL/d).

As per EPL 3686, final effluent is required to be monitored monthly. Final effluent has been used for irrigation purposes on nearby land. Soil and groundwater samples are collected every six months.

Dowload the most recent Spring Hill STP pollution monitoring results here.

Spring Hill WWTP - April 2018


Pollution Points Spring Hill

To view a map of EPA monitoring locations for Spring Hill STP, click on the image at right


Phillip Street Quarry

The Phillip Street Quarry is a source of high quality hard rock suitible to produce various grades of aggregates for use throughout Orange. Phillip Street QuarryThe quarry is located to the north east of the city near to Blackmans Swamp Creek.

The requirments for monitoring this site as per EPL 5762 are different to the two sewage treatment plants. Pollution monitoring is required if there is an overflow event. There have been very few overflow events in recent times.

Download the most recent Phillip Street Quarry pollution monitoring results here.

Quarry - April 2018

Icely Road Water Treatment Plant

The Icely Rd Water Treatment Plant (WTP) supplies the population of Orange with drinking water treated to the Australian Drinking Water Guidelines.  The WTP has a capacity of up to 38 ML per day. Raw water sourced from Suma Park Dam is treated through filtration,  ozonation, chlorination and dosed with fluoride.  The water is distributed to consumer’s taps through a network of pipes and reservoirs.  The discharge of backwash water is licenced under EPL 20293 and monitored according to conditions.

Download the most recent Icely Rd WTP pollution monitoring results

Icely Road Supernatant June 2017

To view a map of the EPA monitoring locations for Icely Rd WTP here

Resource Recovery Centres

The Ophir Road Resource Recovery Centre (Licence No. 5956) is located 5km North East of the Orange City CBD and is the primary receiving point for all wastes generated within the City and surrounding areas. Recyclables are processed through the Material Recovery Facility for Orange, Cabonne, Parkes, Forbes, Blayney and Bathurst Regional Council while waste is either directly deposited to the landfill or pre-processed through the Waste Baling and Organics building.

Recycle Reduce Reuse logo

Euchareena Road Resource Recovery Centre (Licence No.20104) is located 5 km North East from Molong and is licenced to receive baled and wrapped residual waste and inert construction & demolition waste which is landfilled. It will also receive food and garden organics from the domestic kerbside collection which will be then processed through a tunnel composting facility collocated on the site and managed by Council's contractor J R Richards & Sons. The composting facility has a separate Environmental Protection Licence (Licence No. 20140) where JR Richards is the Licencee. To view this licence, click here .

Both Resource Recovery Centre sites are required to be monitored in accordance with their licence conditions and reported to the EPA in an Annual Return.

Download the most recent Ophir Road Resource Recovery Centre environmental monitoring results  ORRRC - environmental monitoring - April 2018

Download a map of EPA monitoring locations for Ophir Road RRC here. ORRRC Monitoring Points Map

The Euchareena Road Resource Recovery Centre air quality monitoring results  ERRRC - Air quality monitoring - 15 May - 14 June 2018

The Euchareena Road Resource Recovery Centre environmental monitoring results ERRRC - Environmental monitoring - 13 June 2018

Download a map of EPA monitoring locations for Euchareena Road Resource Recovery Centre here.  ERRRC Monitoring Points Map


Pollution Incidents

In the event of a pollution incident, Orange City Council is required to work in line with a management plan which outlines how to deal with the community and other stakeholders.

Below are the Pollution Incident Response Management Plans:

Wastewater Treatment Plant, Water Filtration Plant, Suma Park Dam, Spring Creek Dam and  Phillip Street Quarry

  Technical Services Operations PIRMP V5.1


Ophir Road Resource Recovery Centre



  PIRMP supporting statement - ORRRC [1534KB]


Euchareena Road Resource Recovery Centre



  PIRMP supporting statement - ERRRC [2033KB]