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Rule Title: LANDFARM FACILITY STANDARDS
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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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17.50.1613    LANDFARM FACILITY STANDARDS

(1) The owner or operator of a landfarm facility:

(a) may not place in a treatment cell contaminated soils when the BTZ soils have a hydraulic conductivity less than 1 x 10-5 cm/sec. The owner or operator shall determine hydraulic conductivity by a department-approved method;

(b) may not place in a treatment cell contaminated soils that contain over five percent petroleum hydrocarbons by weight or with concentrations of TPH or VPH and EPH greater than 50,000 ppm without prior approval from the department.

(2) The following table from Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, EPA publication SW‐846, Third Edition, Final Updates I (1993), II (1995), IIA (1994), IIB (1995), III (1997), IIIA (1999), IIIB (2005), IV (2008), and V (2015) lists the maximum allowable Toxicity Characteristic Leaching Procedure (TCLP) metals concentration allowed in the treatment zone and BTZ of the treatment cell. The analytical methods listed in Table 4 are defined in ARM 17.50.1612.

 

                                                                   TABLE 4

 

            ELEMENT                             MAXIMUM TCLP METALS             ANALYTICAL

                                                          CONCENTRATION (ppm)                 METHOD

 

            Arsenic                                               <5.0                                                    7061

            Barium                                               <100                                                   6010

            Cadmium                                           <1.0                                                    6010

            Chromium                                         <5.0                                                    6010

            Lead                                                   <5.0                                                    7421

            Mercury                                              <0.2                                                    7421

            Selenium                                           <1.0                                                    7741

            Silver                                                  <5.0                                                    7761

  

 

(3) Whenever ground water monitoring is required at a landfarm facility, the owner or operator shall construct monitoring wells in accordance with ARM 17.50.1304.

 

History: 75-10-204, MCA; IMP, 75-10-204, MCA; NEW, 2017 MAR p. 666, Eff. 3/11/17.


 

 
MAR Notices Effective From Effective To History Notes
17-388 3/11/2017 Current History: 75-10-204, MCA; IMP, 75-10-204, MCA; NEW, 2017 MAR p. 666, Eff. 3/11/17.
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