Table TT-1 to Subpart TT of Part 98—Default DOC and Decay Rate Values for Industrial Waste Landfills
| Industry/Waste Type | DOC (weight fraction, wet basis) | k [dry climatea] (yr−1) | k [moderate climatea] (yr−1) | k [wet climatea] (yr−1) |
|---|---|---|---|---|
| Food Processing (other than industrial sludge) | 0.22 | 0.06 | 0.12 | 0.18 |
| Pulp and Paper Industry: | ||||
| Pulp and paper wastes segregated into separate streams: | ||||
| Boiler Ash | 0.06 | 0.02 | 0.03 | 0.04 |
| Wastewater Sludge | 0.12 | 0.02 | 0.04 | 0.06 |
| Kraft Recovery Wastes b | 0.025 | 0.02 | 0.03 | 0.04 |
| Other Pulp and Paper Wastes (not otherwise listed) | 0.20 | 0.02 | 0.03 | 0.04 |
| Pulp and paper wastes not segregated into separate streams: | ||||
| Pulp and paper manufacturing wastes, general (other than industrial sludge) | 0.15 | 0.02 | 0.03 | 0.04 |
| Wood and Wood Product (other than industrial sludge) | 0.43 | 0.02 | 0.03 | 0.04 |
| Construction and Demolition | 0.08 | 0.02 | 0.03 | 0.04 |
| Industrial Sludge c | 0.09 | 0.02 | 0.04 | 0.06 |
| Inert Waste [i.e., wastes listed in § 98.460(c)(2)] | 0 | 0 | 0 | 0 |
| Other Industrial Solid Waste (not otherwise listed) | 0.20 | 0.02 | 0.04 | 0.06 |
| a The applicable climate classification is determined based on the annual rainfall plus the recirculated leachate application rate. Recirculated leachate application rate (in inches/year) is the total volume of leachate recirculated from company records or engineering estimates and applied to the landfill divided by the area of the portion of the landfill containing waste [with appropriate unit conversions]. | ||||
| Dry climate = precipitation plus recirculated leachate less than 20 inches/year; | ||||
| Moderate climate = precipitation plus recirculated leachate from 20 to 40 inches/year (inclusive); | ||||
| Wet climate = precipitation plus recirculated leachate greater than 40 inches/year. | ||||
| Alternatively, landfills that use leachate recirculation can elect to use the k value for wet climate rather than calculating the recirculated leachate rate. | ||||
| b Kraft Recovery Wastes include green liquor dregs, slaker grits, and lime mud, which may also be referred to collectively as causticizing or recausticizing wastes. | ||||
| c A facility that can segregate out pulp and paper industry wastewater sludge must apply the 0.12 DOC value to that portion of the sludge. |
[75 FR 39773, July 12, 2010, as amended at 76 FR 73910, Nov. 29, 2011; 78 FR 71981, Nov. 29, 2013; 81 FR 89274, Dec. 9, 2016]