In this article:
- The Ulan Coal Mine includes both open cut and underground mining operations and has approval to operate until 2033
- The East Pit Area 2 has been progressively rehabilitated since the early 1980’s with 50.4 hectares within the former open cut mining area successfully rehabilitated
- See what score you get for your Rehabilitation and Closure program
- Find out about Decipher’s Rehabilitation and Closure solution
Background information on the Ulan Coal Mine
The Ulan Coal Mine is in the central west of NSW about 38 kilometres north east of Mudgee. The mine is primarily surrounded by rural landholdings, native bushland and primary industries including agriculture, state conservation areas, mining (including other coal mining operations) and extractive industries.- The complex includes both open cut and underground mining operations and operates pursuant to development consent PA08_0184 granted by the (then) Department of Planning, Industry and Environment.
- The mine has approval to operate until 2033.
- Coal deposits at Ulan were first worked in the 1920s with the first underground mine producing coal in 1942 and the second underground mine producing coal in 1957.
- Mining operations expanded substantially in the 1980s, with more open cut operations and a coal preparation plant and rail loading facilities.
- The open cut operations were placed on care and maintenance in 2016, however, the underground operations continue to operate at the time of writing.
- The domain where rehabilitation has been completed comprises 50.4 hectares within the former open cut mining area known as East Pit Area 2 (EPA2). Rehabilitation has been undertaken progressively at EPA2 since the early 1980s.

Required rehabilitation outcomes
The required rehabilitation outcomes for the EPA2 area are detailed in the Ulan Coal Mining Operations Plan (MOP) approved by the Regulator. The MOP requires the title holder to achieve the approved rehabilitation objectives, rehabilitation completion criteria and final landform.See what score you get for your Rehabilitation and Closure program
This includes the following key obligations:- Establish a safe, stable, self-sustaining and non-polluting landform that is free-draining.
- Establish and final land use that consists of grassland, shrubs and native trees similar to the pre-mining environment.

Rehabilitation progress
Rehabilitation has been undertaken progressively at EPA2 since the early 1980s in accordance with the obligations set out in the approved MOP. Figures 3 to 5 show the progress of rehabilitation between 1992 and 2019.


- The final landform is safe, stable, non-polluting and free draining. Slopes are compatible with the proposed final land use.
- There are no gully or erosion features, or rills greater than 20 millimetres deep that are active or pose a risk to the final land use. The soils are stable, non-polluting and the data presented in sampling reports shows evidence of key structural formation and function.
- There is no spontaneous combustion present.
- The final landform design has surface contours blended to the surrounding landscape with no slumping.
- The final landform consists of dense vegetation covering a consistent slope that falls to the south east.
- Surrounding landscape features and vegetation communities are present within the rehabilitated areas and evidenced in the form of faunal composition, habitat features such as shelter, foraging areas, breeding habitat and general biodiversity of the site.
- The species composition represent the seed mix from the 1980s and 1990s and monitoring data also shows that seed movement from surrounding native woodland is regenerating naturally within the rehabilitated area. The site comprises a mix of Acacia woodland (10.3 hectares), Mixed-Eucalypt woodland/open forest (9.7 hectares), Spotted Gum woodland/open forest (21.2 hectares) and grassland/shrubland (9.2 hectares).
- The 0.5 hectares dam is fed from a small local catchment that is dependent on rainfall events, consequently being dry during drought conditions. The dam augments habitat when surface runoff is sufficient to replenish it.
- The area exhibits all the key attributes of an area that is functioning as a self-sustaining native ecosystem which has reached a state of high resilience and requires minimal maintenance.
- The area satisfies all the required ecological, soil and landform rehabilitation completion criteria with no significant weed infestations.
How to drive progressive rehabilitation and closure
[embedyt] https://www.youtube.com/watch?v=340Weed-sww[/embedyt] Information obtained from NSW Resources Regulator.
Decipher’s Rehabilitation & Closure Solution

Request a full demo of Decipher
Want to find out more about mine rehabilitation?
- See what score you get for your Rehabilitation and Closure program
- What is mine rehabilitation and closure?
- What are some key challenges facing mine rehabilitation and closure?
- How much does mine rehabilitation cost?
- What are the advancements in mine rehabilitation technology?
- What are some best practice mine rehabilitation methods?
- How to take a macro and micro approach to mine rehabilitation
- What is CRC-TiME?
- How to become an industry leader in mine rehabilitation
- Download this free Guide to Mine Rehabilitation in Australia