| Factor | Default value | Units |
|---|---|---|
| DOC and k values—Bulk waste option | ||
| DOC (bulk waste) | 0.20 | Weight fraction, wet basis. |
| k (precipitation plus recirculated leachatea <20 inches/year) | 0.02 | yr−1 |
| k (precipitation plus recirculated leachatea 20-40 inches/year) | 0.038 | yr−1 |
| k (precipitation plus recirculated leachatea >40 inches/year) | 0.057 | yr−1 |
| DOC and k values—Modified bulk MSW option | ||
| DOC (bulk MSW, excluding inerts and C&D waste) | 0.31 | Weight fraction, wet basis. |
| DOC (inerts, e.g., glass, plastics, metal, concrete) | 0.00 | Weight fraction, wet basis. |
| DOC (C&D waste) | 0.08 | Weight fraction, wet basis. |
| k (bulk MSW, excluding inerts and C&D waste) | 0.02 to 0.057b | yr−1 |
| k (inerts, e.g., glass, plastics, metal, concrete) | 0.00 | yr−1 |
| k (C&D waste) | 0.02 to 0.04b | yr−1 |
| DOC and k values—Waste composition option | ||
| DOC (food waste) | 0.15 | Weight fraction, wet basis. |
| DOC (garden) | 0.2 | Weight fraction, wet basis. |
| DOC (paper) | 0.4 | Weight fraction, wet basis. |
| DOC (wood and straw) | 0.43 | Weight fraction, wet basis. |
| DOC (textiles) | 0.24 | Weight fraction, wet basis. |
| DOC (diapers) | 0.24 | Weight fraction, wet basis. |
| DOC (sewage sludge) | 0.05 | Weight fraction, wet basis. |
| DOC (inerts, e.g., glass, plastics, metal, cement) | 0.00 | Weight fraction, wet basis. |
| k (food waste) | 0.06 to 0.185c | yr−1 |
| k (garden) | 0.05 to 0.10c | yr−1 |
| k (paper) | 0.04 to 0.06c | yr−1 |
| k (wood and straw) | 0.02 to 0.03c | yr−1 |
| k (textiles) | 0.04 to 0.06c | yr−1 |
| k (diapers) | 0.05 to 0.10c | yr−1 |
| k (sewage sludge) | 0.06 to 0.185c | yr−1 |
| k (inerts e.g., glass, plastics, metal, concrete) | 0.00 | yr−1 |
| Other parameters—All MSW landfills | ||
| MCF | 1. | |
| DOCF | 0.5 | |
| F | 0.5 | |
| OX | See Table HH-4 of this subpart | |
| DE | 0.99 | |
aRecirculated leachate (in inches/year) is the total volume of leachate recirculated from company records or engineering estimates divided by the area of the portion of the landfill containing waste with appropriate unit conversions. Alternatively, landfills that use leachate recirculation can elect to use the k value of 0.057 rather than calculating the recirculated leachate rate.
bUse the lesser value when precipitation plus recirculated leachate is less than 20 inches/year. Use the greater value when precipitation plus recirculated leachate is greater than 40 inches/year. Use the average of the range of values when precipitation plus recirculated leachate is 20 to 40 inches/year (inclusive). Alternatively, landfills that use leachate recirculation can elect to use the greater value rather than calculating the recirculated leachate rate.
cUse the lesser value when the potential evapotranspiration rate exceeds the mean annual precipitation rate plus recirculated leachate. Use the greater value when the potential evapotranspiration rate does not exceed the mean annual precipitation rate plus recirculated leachate. Alternatively, landfills that use leachate recirculation can elect to use the greater value rather than assessing the potential evapotranspiration rate or recirculated leachate rate.
[75 FR 66473, Oct. 28, 2010, as amended at 78 FR 71970, Nov. 29, 2013]
Tried the LawStack mobile app?
Join thousands and try LawStack mobile for FREE today.
- Carry the law offline, wherever you go.
- Download CFR, USC, rules, and state law to your mobile device.
