It is the responsibility of the NSW Resources Regulator to ensure that land disturbed by exploration and mining activities is returned to a safe, stable and sustainable land use.

All exploration and mining title holders are required to lodge a security deposit with the department that covers the full rehabilitation costs. This requirement ensures that the NSW Government does not incur financial liabilities in the event of a title holder defaulting on their rehabilitation obligations. Further details are provided in our policy ESP1: Rehabilitation security deposits and ESG1: Rehabilitation cost estimate guidelines.

The title holder is required to provide an estimate of rehabilitation costs for consideration by the Regulator when determining the security deposit amount. The amount must be consistent with the stage of the exploration project or mine. A Rehabilitation cost estimation tool and Rehabilitation cost estimation tool handbook is available to assist in calculating the security deposit for a site.

Our inspectors regularly assess the surface disturbance (or proposed disturbance) of a mine or exploration site to calculate the security deposit. This is known as the assessed deposit. Once the assessed deposit is determined, we advise the Mining, Exploration and Geoscience (part of Regional NSW), who vary the condition of the title and seek the additional funds - or in the case of satisfactory rehabilitation, returns some or all of the security deposit. Click below to view the list of assessed deposits determined by the Regulator as at 8 February 2021.

Enviro Mine Authority number Assessed security deposit
Abel Underground Coal MineML 1618 (1992), ML 1653 (1992)$4,741,000.00
Adelong Gold MineM(C)L 279 (1992), M(C)L 280 (1992), M(C)L 281 (1992), M(C)L 282 (1992), M(C)L 283 (1992), M(C)L 284 (1992), M(C)L 285 (1992), M(C)L 286 (1992), M(C)L 287 (1992), M(C)L 288 (1992), M(C)L 289 (1992), M(C)L 290 (1992), M(C)L 291 (1992), M(C)L 311 (1992), M(C)L 312 (1992), M(C)L 313 (1992), ML 1435 (1992)$626,061.00
Airly CollieryML 1331 (1992)$4,660,500.00
Atlas Mineral Sands MineML 1767 (1992)$2,805,000.00
Attunga Limestone MineML 1394 (1992)$3,980,720.00
Austral Brick Co Pty Ltd - Horsley ParkM(MO)L 7 (1992)$3,470,000.00
Austral Brick Company - Marulan QuarryML 786 (1973), ML 866 (1973), PLL 1293 (1924)$124,000.00
Balranald Mineral Sands ProjectML 1736 (1992)$2,993,000.00
Black PrinceML 6271 (1906)$10,000.00
Black SpringML 791 (1973)$34,000.00
Bloomfield MineCCL 761 (1973), ML 1738 (1992)$25,367,000.00
Brogans CreekML 6119 (1906), ML 6175 (1906), PL(MP)L 2903 (1906), PL(MP)L 2905 (1906), PLL 1178 (1924), PLL 1195 (1924), PLL 1216 (1924), PLL 1217 (1924), PLL 1265 (1924), PLL 1266 (1924), PLL 1268 (1924), PLL 501 (1924), PLL 502 (1924)$1,092,000.00
Buckaroo MineML 919 (1973)$162,000.00
Caloola Marble MineM(C)L 307 (1992), M(C)L 308 (1992), ML 5460 (1906)$60,000.00
Chain Valley CollieryCCL 706 (1973), CCL 707 (1973), ML 1051 (1906), ML 1052 (1906), ML 1308 (1906), MPL 1349 (1906), MPL 1389 (1906), MPL 1400 (1906), MPL 337 (1973)$9,918,000.00
Clarence CollieryML 1583 (1992)$285,000.00
Clean Teq Sunrise ProjectML 1770 (1992)$22,000.00
Cow Flat QuarryML 1253 (1973), ML 1340 (1992), ML 1375 (1992), ML 1462 (1992), ML 1463 (1992), ML 1764 (1992), ML 243 (1973), ML 4360 (1906), ML 454 (1973), ML 5991 (1906), ML 982 (1973), MPL 239 (1973), PLL 1085 (1924), PLL 1157 (1924), PLL 1200 (1924)$401,000.00
Crayfish Mineral Sands MineML 1735 (1992)$2,280,000.00
Donaldson Open Cut Coal MineML 1461 (1992)$3,576,000.00
Enhance Place Open Cut Coal MineML 1422 (1992), ML 1458 (1992), ML 1520 (1992)$34,000.00
Fifield Alluvial Platinum MineM(C)L 305 (1992)$35,000.00
Galong Limestone MineML 1496 (1992), ML 1745 (1992)$5,380,000.00
Glenella QuarryML 1692 (1992)$236,000.00
Gunnedah CollieryCCL 701 (1973)$12,567,000.00
Hera MineML 1686 (1992), ML 1746 (1992)$10,629,000.00
Hi Quality - Oallen FordML 887 (1973), ML 888 (1973)$490,000.00
Hi Quality Londonderry QuarryML 1499 (1992), ML 6030 (1906), ML 6031 (1906), ML 6032 (1906)$483,000.00
Horsley Park Clay MineML 1636 (1992)$4,344,000.00
Integra UndergroundCL 382 (1973), ML 1437 (1992), ML 1518 (1992), ML 1525 (1992), ML 1551 (1992), ML 1630 (1992), ML 1676 (1992)$10,990,000.00
Liddell CoalCCL 708 (1973), ML 1313 (1992), ML 1552 (1992), ML 1597 (1992)$44,898,000.00
Lightning Ridge Mineral Claims DistrictMC59042$700.00
Macquarie Coal ComplexCCL 718 (1973), CCL 725 (1973), CCL 760 (1973), ML 1336 (1992), ML 1438 (1992), ML 1451 (1992), ML 1567 (1992), PLL 153 (1906)$29,707,900.00
Mangoola Coal MineML 1626 (1992), ML 1747 (1992)$64,574,000.00
Mannering CollieryCCL 719 (1973), CCL 721 (1973)$6,261,000.00
Marrangaroo QuarryML 1522 (1992), ML 1801 (1992), ML 4635 (1906), ML 4636 (1906), ML 6388 (1906), MPL 221 (1973), PLL 584 (1924), PLL 602 (1924)$979,000.00
Martins Lime MineML 1584 (1992)$116,000.00
Marulan South Limestone MineCML 16 (1992), ML 1716 (1992)$20,816,000.00
Maules Creek Mine ComplexAUTH 346 (1973), CL 375 (1973), ML 1701 (1992), ML 1719 (1992)$112,076,000.00
Melville O/C and REACCL 701 (1973)$369,350.00
Metford Clay MineML 1523 (1992), ML 4865 (1906), ML 5090 (1906), ML 5848 (1906)$646,000.00
Mineral Hill MineML 1695 (1992), ML 1712 (1992), ML 1778 (1992), ML 332 (1973), ML 333 (1973), ML 334 (1973), ML 335 (1973), ML 336 (1973), ML 337 (1973), ML 338 (1973), ML 339 (1973), ML 340 (1973), ML 5240 (1906), ML 5267 (1906), ML 5278 (1906), ML 5499 (1906), ML 5621 (1906), ML 5632 (1906), ML 6329 (1906), ML 6365 (1906)$5,336,000.00
Moolarben CoalML 1605 (1992), ML 1606 (1992), ML 1715 (1992)$77,484,000.00
Mount Pleasant Coal MineML 1645 (1992), ML 1708 (1992), ML 1709 (1992), ML 1713 (1992), ML 1750 (1992)$64,882,216.00
Muswellbrook CoalCCL 713 (1973), ML 1304 (1992), ML 1562 (1992)$58,492,000.00
Myuna Colliery ComplexML 1370 (1992), ML 1632 (1992), MPL 334 (1973)$10,649,000.00
Narrabri CollieryML 1609 (1992)$25,063,000.00
Northparkes MinesML 1247 (1973), ML 1367 (1992), ML 1641 (1992), ML 1743 (1992)$46,149,000.00
Oaklands Kaolin MinePLL 1267 (1924)$235,000.00
Peak Gold MineCML 6 (1992), CML 7 (1992), CML 8 (1992), CML 9 (1992), ML 1483 (1992), MPL 854 (1906)$32,278,500.00
Pine Dale MineML 1569 (1992), ML 1578 (1992), ML 1637 (1992), ML 1664 (1992)$1,072,000.00
Rixs Creek MineCL 352 (1973), CL 357 (1973), ML 1432 (1992), ML 1630 (1992), ML 1648 (1992), ML 1649 (1992), ML 1650 (1992), ML 1651 (1992), ML 1725 (1992)$78,470,000.00
RocGlen Open Cut Coal MineML 1620 (1992), ML 1662 (1992)$30,508,000.00
SferruzziM(C)L 213 (1992)$1,000.00
Snapper Mineral Sands MineML 1621 (1992)$16,724,000.00
Springvale CollieryCCL 733 (1973), CL 361 (1973), CL 377 (1973), CL 394 (1973), ML 1303 (1992), ML 1319 (1992), ML 1323 (1992), ML 1326 (1992), ML 1352 (1992), ML 1448 (1992), ML 1537 (1992), ML 1588 (1992), ML 1670 (1992), ML 1727 (1992), ML 204 (1906), ML 564 (1906), MPL 314 (1973), PLL 133 (1906)$25,987,000.00
Sulcor Limestone MineML 1470 (1992)$739,000.00
Swan Bay MineML 5938 (1906)$181,000.00
Tahmoor CollieryCCL 716 (1973), ML 1308 (1992), ML 1376 (1992), ML 1539 (1992), ML 1642 (1992)$27,334,000.00
Taronga Tin ML 1774 (1992)$26,500.00
Tarrawonga Coal MineML 1579 (1992), ML 1685 (1992), ML 1693 (1992), ML 1749 (1992)$49,375,000.00
Ulan Coal MineCCL 741 (1973), ML 1341 (1992), ML 1365 (1992), ML 1366 (1992), ML 1467 (1992), ML 1468 (1992), ML 1511 (1992), ML 1554 (1992), ML 1656 (1992), ML 1697 (1992), ML 1754 (1992), MPL 315 (1973)$93,394,000.00
United Wambo Joint VentureCCL 775 (1973)$19,249,000.00
Wallerawang QuarryML 1633 (1992)$811,000.00
Wilpinjong Coal MineML 1573 (1992), ML 1779 (1992)$60,653,000.00