Distribution media include both public domain products like aggregate or drainfield rocks, and proprietary products like expanded polystyrene aggregate and chambers. Distribution media are required to meet four performance standards:
- do not decay, deteriorate, or leach unacceptable chemicals when exposed to sewage and soil
- provide adequate void space for the passage and temporary storage of effluent, while maintaining a stable density for the life of the system
- support the distribution network, provide for suitable effluent distribution, and present an interface with the infiltrative surface — trench bottom and side wall soil — for absorption of wastewater
- maintain integrity of the excavation, and support soil backfill, cover material, and the weight of equipment used in backfilling
Proprietary distribution media registered for use in Minnesota
| Product name and model | Manufacturer | Trenches | Seepage beds | At-grades | Mounds |
|---|---|---|---|---|---|
| Arc 18 | Infiltrator Systems | X | |||
| Arc 24 | Infiltrator Systems | X | X | X | |
| Arc 36, Arc 36 Low Profile (LP), Arc 36 Low Profile (LP)-4, Arc High Capacity (HC) | Infiltrator Systems | X | X | X | X |
| BioDiffuser chambers 11" Standard and 16" High Capacity | Infiltrator Systems | X | X | X | X |
| Eljen GSF, A42 & B43 | Eljen Corporation | X | |||
| EZflow bundled polystyrene aggregate 1202 H, 1202 H-GEO, 1203 H, 1203 H-GEO | Infiltrator Systems | X* | X | X | X |
| Prinsco Pro4/36, Pro4 Low Profile (LP) | Prinsco Inc. | X | X | X | X |
| Prinsco Pro4 High Capacity (HC) | Prinsco Inc. | X*** | X | X | X |
| Quick4 Equalizer 24 Low Profile (LP), Quick4 Equalizer 24, Quick4/Quick5 Equalizer 36 | Infiltrator Systems | X | |||
| Quick4 Plus Standard Low Profile (LP), Quick4/Quick5 Standard, Quick4 Plus Standard | Infiltrator Systems | X | X | X | X |
| Quick4 High Capacity (HC), Quick4 Plus High Capacity (HC) | Infiltrator Systems | X** | X | X | X |
The product listing does not constitute MPCA approval of the manufacturer's marketing, advertising or labeling practices or an endorsement of the products. Information obtained from the manufacturer is the sole responsibility of the manufacturer or other provider. Proprietary technologies are those subject to a patent or trademark. Public domain products were not developed by a specific company and don't have a patent or trademark.
Public domain distribution technologies
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- specifies size, durability, and cleanliness requirements for drainfield rock used in trenches, beds, at-grades, mounds, and sand filters in both new and replacement systems
Product registration letters
These letters to product manufacturers specify the conditions for use of each product in Minnesota.