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Rule Title: CLOSURE PLAN
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Department: ENVIRONMENTAL QUALITY
Chapter: SOLID WASTE MANAGEMENT
Subchapter: Landfarm License and Operation Standards
 
Latest version of the adopted rule presented in Administrative Rules of Montana (ARM):

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17.50.1618    CLOSURE PLAN

(1) For purposes of closure of a landfarm facility, the owner or operator of a landfarm facility shall submit a closure plan that documents the following: 

(a) all contaminated soils were remediated pursuant to ARM 17.50.1617 standards;

(b) concentrations of TCLP metals in all remediated soils remaining at the facility are below the limits specified in ARM 17.50.1613, Table 4 and concentrations of nitrates or phosphorous are below the annual agronomic uptake rate for the established vegetation;

(c) one of the following requirements was satisfied:

(i) all contaminated soils were remediated and removed in accordance with ARM 17.50.1617 standards;

(ii) all contaminated soils were remediated to ARM 17.50.1617 standards and were subsequently spread and contoured in place; or

(iii) all contaminated soils were remediated to Table 1 residential RSBL concentrations in the Montana Risk-based Corrective Action Guidance for Petroleum Releases, (May 2018) and are capable of supporting native vegetation;

(d) all facility structures, such as cell, berms, and ditches, were reclaimed to pre-operation conditions;

(e) disturbed areas were revegetated with native plant growth or other department-approved species;

(f) final surface grades prevent ponding and erosion; and

(g) any ground water wells not intended for post-closure use were abandoned pursuant to ARM 17.50.1305.

(2) The owner or operator of a landfarm facility shall complete all closure activities within 180 days after commencing closure. Extension of the closure period may be granted by the department if the owner or operator demonstrates that closure will take longer than 180 days and that measures necessary to protect human health and the environment are maintained.

(3) Upon completion of all activities in the closure plan, the owner or operator of the landfarm facility shall provide written notification to the department that the facility has closed. Final closure is not complete until the department has completed final site inspection verifying the provisions of (1).

 

History: 75-10-204, MCA; IMP, 75-10-204, MCA; NEW, 2017 MAR p. 285, Eff. 3/11/17; AMD, 2019 MAR p. 174, Eff. 2/9/19.


 

 
MAR Notices Effective From Effective To History Notes
17-401 2/9/2019 Current History: 75-10-204, MCA; IMP, 75-10-204, MCA; NEW, 2017 MAR p. 285, Eff. 3/11/17; AMD, 2019 MAR p. 174, Eff. 2/9/19.
17-388 3/11/2017 2/9/2019 History: 75-10-204, MCA; IMP, 75-10-204, MCA; NEW, 2017 MAR p. 285, Eff. 3/11/17.
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