Source: https://www.revisor.mn.gov/rules/7035.2836/
Timestamp: 2019-01-16 10:57:39
Document Index: 544883343

Matched Legal Cases: ['arts 2', 'arts 4', 'arts 6', 'art 7035', 'art 7035', 'art 3', 'art 11', 'art 7035', 'art 9', 'art 11', 'art 7035', 'art 7', 'art 7035', 'art 3', 'art 7035', 'arts 7035', 'art 7035', 'art 5', 'art 7035', 'art 105', 'art 5', 'art 6', 'art 7035', 'arts 3', 'arts 6', 'art 5', 'art 7035', 'art 7035', 'art 4']

7035.2835 7035.2845
The owner or operator of a yard waste compost facility must comply with subparts 2 and 3 only. The requirements of subparts 4 to 7 apply to the owner and operator of a facility used to compost solid waste. The owner or operator of a source-separated organic material compost facility must comply with subparts 6 to 11.
(b) Dewar Self-Heating Method Temperature rise above ambient in CÃ‚Â°, range of 0Ã‚Â° - 20Ã‚Â° Celsius
Location requirements for a source-separated organic material compost facility.
An owner or operator must not establish or construct a source-separated organic material compost facility in the following areas:
within locations described in part 7035.2555;
on a site with karst features including sinkholes, disappearing streams, and caves;
within five vertical feet of the water table; and
unless a different distance is specified by a local unit of government by ordinance, within 500 feet horizontal separation distance as measured from the closest edge of all compost activities to the closest edge of a property boundary of the nearest residence, place of business, or public area, such as parks, wildlife areas, and public buildings, except:
upon approval of the commissioner, operational modifications, geographic features, or other natural or man-made physical characteristics that reduce nuisance conditions, such as noise, litter, and odor, may be used to reduce the 500-foot horizontal separation distance; and
adjacent commercial activities operated by the facility owner are excluded from the 500-foot horizontal separation requirement for the owner's residence or place of business.
Design requirements for a source-separated organic material compost facility.
The owner or operator of a source-separated organic material compost facility must submit an engineering design report to the commissioner for approval with the facility permit application.
The engineering design report must comply with the design requirements in subitems (1) to (10).
Site preparations must include clearing and grubbing for the compost operating and storage areas, building locations, topsoil stripping, excavations, berm construction, drainage control structures, storm water management systems, contact water collection systems, access roads, screening, fencing, and other special design features.
Access to the facility must be controlled to prevent unauthorized entry. A perimeter fence and gate, enclosed structures, or other physical barriers must be used to prevent unauthorized entry to the facility.
Storm water drainage must be diverted around and away from the compost storage and operating areas. The storm water drainage control system must be designed to manage a 24-hour, 10-year storm event. A storm water drainage control system, including changes in the site topography, ditches, berms, sedimentation ponds, culverts, energy breaks, and erosion control measures, must comply with part 7035.2855, subpart 3, items C to E. For purposes of this subpart, water that has come into contact with compost in the curing and finished storage areas is considered storm water. For purposes of this subpart, compost has reached the curing stage after PFRP as described in subpart 11, item B, subitem (10), has been achieved and the Solvita maturity index is greater than or equal to five with the ammonia greater than or equal to four. An owner or operator may use alternative test methods that are approved by the commissioner as equivalent to those listed in this subitem.
Contact water must be diverted to a contact water collection and treatment system. The contact water collection and treatment system must comply with applicable portions of part 7035.2815, subpart 9. For purposes of this subpart, immature compost is defined as not having reached the curing stage described in subitem (3).
The facility must be designed for collection of rejects and residuals and must provide for the final transportation and proper disposal of rejects and management of residuals.
The tipping, mixing, active composting, curing, and storage areas for compost must be located on a hard-packed, all-weather surface capable of minimizing migration of materials or contact water into the subsurface soil, groundwater, and surface water.
The working surface of a source-separated organic material compost facility must have a minimum of five feet of soil separation to the water table.
Unless designed as allowed under subitem (9), the site must have at least five feet of any combination of the following soil types comprising the soil profile above the water table: sandy clay loam, sandy clay, clay loam, silty clay loam, silty clay, and clay. An owner or operator may use an alternate separation distance according to unit (a). Water tables classified as perched or epi-saturated by the United States Department of Agriculture, Natural Resources Conservation Service, are not considered to be the seasonal high water table. The soil profile must be characterized by the use of soil borings, piezometers, or test pits as certified by a Minnesota-licensed soil scientist, engineer, or geologist. The owner or operator may propose the use of alternative methods for soil profiles according to unit (b). If the site cannot meet the soil criteria, an impervious pad or liner must be installed under all activity areas except curing and storage of finished compost.
The owner or operator may use an alternative separation distance that is approved by the commissioner as equivalent to that listed in this subitem if, during the previous five years:
the site has experienced an abnormally wet period or an abnormally dry period; and
the elevation of the water table at the site has changed.
The alternative separation distance must maintain a sufficient distance between the water table and compost activities to account for the movement of the water table through normal wet and dry years.
An owner or operator may use alternative methods that are approved by the commissioner as equivalent if the owner or operator can demonstrate that the alternative methods provide soil profile characterization substantially equivalent to characterization by soil borings, piezometers, or test pits.
Owners and operators whose sites are unable to meet the soil requirement listed under subitem (8) must install a pad system in all areas where source-separated organic materials will be managed and composted prior to curing. For the purposes of this subpart, compost has reached the curing stage after PFRP as described in subpart 11, item B, subitem (10), has been achieved and the Solvita maturity index is greater than or equal to five with an ammonia test result of greater than or equal to four. An owner or operator may use alternative test methods that are approved by the commissioner as equivalent to those listed in this subitem. Sites requiring a pad must comply with one of the options listed in units (a) to (c).
If a geomembrane is used, the liner system must be designed and built according to the applicable criteria in part 7035.2815, subpart 7. The surface must comply with part 7035.2855, subpart 3, item A.
If a concrete or asphalt pad is used, the surface must at a minimum meet requirements established in the Minnesota Department of Transportation, Road Design Manual, incorporated by reference under part 7035.0605. The owner or operator must inspect the pad routinely and immediately repair any cracks, crumbling, and failures. The owner or operator must include the results of all inspections and repairs in the annual report submitted to the commissioner.
An alternative liner system design may be used when approved by the commissioner. The owner or operator must demonstrate that the proposed liner system will control contact water migration, meet performance standards, and protect human health and the environment.
The owner or operator must design the site to minimize liquids; odors; vectors, such as flies and rodents; and nuisance conditions, such as litter, noise, ponding water, and erosion.
Construction requirements for a source-separated organic material compost facility.
The owner or operator must include the construction requirements in items A to G in the project specifications for all design features of a source-separated organic material compost facility.
The owner or operator must notify the commissioner in writing at least ten days before the day construction is expected to begin on any design features.
The construction firm's inspector must record all procedures completed during construction at a source-separated organic material compost facility. The record must document that design features were constructed according to parts 7035.2525 to 7035.2915. The record must include pictures, field notes, and all test results.
The owner or operator must install a permanent benchmark on site and show its location on the facility as-built plan.
The owner or operator must complete tests for compaction, grain size distribution, and field moisture density, at a minimum, for soil pads constructed at the facility.
A quality control and quality assurance program must be established for all construction projects. The program must include the tests to be completed during construction. The program must also establish the frequency of inspection and testing, the accuracy and precision standards for the tests, procedures to be followed during inspections and sample collection, and the method of documentation for all field notes including testing, pictures, and observations.
If a geomembrane is used, the surface must comply with part 7035.2855, subpart 5.
Operation requirements for a source-separated organic material compost facility.
The owner or operator of a source-separated organic material compost facility must submit an operation and maintenance manual to the commissioner for approval with the facility permit application. The manual must include a source-separated organic materials management plan, a personnel training program plan, a contact water management plan, a storm water management plan, an odor management plan, and a compost sampling plan.
The facility operations must at a minimum meet the requirements in subitems (1) to (16).
All source-separated organic materials delivered to the facility must be confined to a designated delivery area and processed or removed by the end of the day on which the materials were delivered to prevent nuisances such as odors, vector intrusion, and aesthetic degradation.
All rejects and residuals must be stored to prevent nuisances such as odors, vector intrusion, and aesthetic degradation. All rejects and residuals must be managed to prevent the generation of contact water. All contact water from rejects and residuals storage areas must be diverted to the contact water collection and treatment system. The commissioner shall grant an exception to contact water requirements for residuals if the owner or operator demonstrates during the permit application process or during a site inspection that residuals do not exceed three percent rejects by volume.
Liquid that has come in contact with source-separated organic material, immature compost, and residuals must be diverted to a collection and treatment system.
Contact water or storm water may be reused in the compost process. It must be added to the source-separated organic materials prior to initiating the PFRP process described in subitem (10). Any water to be discharged into waters of the state must meet all federal and state national pollutant discharge elimination system requirements.
The owner or operator must operate and maintain a drainage system to divert storm water around and away from the site operating area.
The owner or operator must cover or otherwise manage all the material on site to control wind dispersion of any particulate matter.
The owner or operator must develop and maintain a source-separated organic material management plan. The plan must, at a minimum:
include a waste analysis plan to characterize source-separated organic materials prior to acceptance at the facility;
identify the area of the facility where source-separated organic materials will be delivered; and
describe management methods to be employed when source-separated organic materials are delivered to the facility. The management methods must address reducing odor, vectors, such as flies and rodents, and nuisance conditions, such as litter, noise, ponding water, and erosion; minimizing liquids; and mixing source-separated organic materials to achieve the proper moisture content, carbon-to-nitrogen ratio (C:N ratio), porosity, and pH.
Acceptable source-separated organic materials are defined in part 7035.0300, subpart 105a, and acceptable bulking agents include untreated wood waste, nonrecyclable paper, ground tree and shrub materials, and other similar materials approved by the commissioner.
Compost must be produced by a process to further reduce pathogens (PFRP). The owner or operator must monitor and record the temperature and retention time for the material being composted each working day until PFRP is achieved, and weekly thereafter. Each time a windrow is turned, the temperature must be measured no more than four hours before turning the windrow and no more than 24 hours after turning the windrow. Acceptable methods of PFRP are described in units (a) to (c).
The windrow method for reducing pathogens consists of an unconfined composting process involving periodic aeration and mixing. Construction of each windrow must incorporate porous materials that promote aerobic conditions within the windrow. Windrow height must not exceed 12 feet. Aerobic conditions must be maintained during the compost process. A temperature of 55 degrees Celsius must be maintained in the windrow for at least 15 days, during which the windrow must be turned at least once every three to five days, unless otherwise approved by the commissioner in the operation and maintenance manual due to defined weather conditions.
The static aerated windrow method for reducing pathogens consists of an unconfined composting process involving mechanical aeration of insulated compost piles. Windrow height must not exceed 12 feet. Aerobic conditions must be maintained during the compost process. The temperature of the compost pile must be maintained at 55 degrees Celsius for at least seven days.
The enclosed vessel method for reducing pathogens consists of a confined compost process involving mechanical mixing of compost under controlled environmental conditions. The retention time in the vessel must be at least 24 hours, with the temperature maintained at 55 degrees Celsius. A stabilization period of at least seven days must follow the enclosed vessel retention period. Temperature in the compost pile must be maintained at least at 55 or more degrees Celsius for three days during the stabilization period.
The owner or operator must comply with subpart 5, item J. For Class I compost as defined under subpart 6, the owner or operator may request removal of mercury (Hg) and polychlorinated biphenyls (PCB) sampling and testing requirements based on five years of sampling batch data. The data must demonstrate nondetect results for Hg and PCB.
The owner or operator must develop and maintain an odor management plan detailing the best management practices (BMPs) to be used during normal operations to minimize odors. These BMPs must address how the oxygen levels and porosity will be managed to minimize odors. The plans must detail how the facility will handle odor complaints and the specific odor control measures and safeguards the owner or operator will employ to resolve the complaints. At a minimum, the odor management plan must address BMPs to minimize odor generation in the mixing and tipping areas, active compost processing areas, and contact water and storm water ponding areas.
The owner or operator must develop a personnel training program. The personnel training program must address the requirements of part 7035.2545, subparts 3 and 4, and the specific training needed to operate a source-separated organic material compost facility in compliance with this subpart and subparts 6 to 10. Personnel training for a source-separated organic material compost facility must include a training schedule that:
provides an initial training session of 24 contact hours within 12 months of employment; and
provides five contact hours of training on an annual basis.
A contact hour means a pertinent instructional or training session of 50 minutes. The commissioner shall prepare and make available to the operators and inspectors a list of accredited training courses and approved educational activities. The commissioner shall grant approval if the content includes topics such as the compost process, composting methods, facility operations, odor control, source-separated organic materials management, or other topics related to the best management practices of operating a compost facility.
The owner or operator must submit an annual report according to subpart 5, item K. The annual report must be submitted on a form prescribed by the commissioner. For source-separated organic material compost facilities, the annual report must include the county of origin and volume of source-separated organic materials received.
If for any reason the facility becomes inoperable, the owner or operator must notify the commissioner within 48 hours and implement the contingency action plan developed under part 7035.2615.
If a geomembrane is used, the owner or operator must comply with part 7035.2855, subpart 4.
21 SR 327; 39 SR 857