---
kind: "section"
citation: "40 C.F.R. § 60.1855"
title: "40"
number: "60.1855"
heading: "What records must I keep for municipal waste combustion units that use activated carbon?"
url: "https://uscodex.org/cfr/40/60.1855"
---

# §60.1855. What records must I keep for municipal waste combustion units that use activated carbon?


For municipal waste combustion units that use activated carbon to control dioxins/furans or mercury emissions, you must keep records of five items:

- (a) **Records of average carbon feed rate.** Document five items:
  - (1) Average carbon feed rate in kilograms (or pounds) per hour during all stack tests for dioxins/furans and mercury emissions. Include supporting calculations in the records.
  - (2) For the operating parameter chosen to monitor carbon feed rate, average operating level during all stack tests for dioxins/furans and mercury emissions. Include supporting data that document the relationship between the operating parameter and the carbon feed rate.
  - (3) All 8-hour block average carbon feed rates in kilograms (or pounds) per hour calculated from the monitored operating parameter.
  - (4) Total carbon purchased and delivered to the municipal waste combustion plant for each calendar quarter. If you choose to evaluate total carbon purchased and delivered on a municipal waste combustion unit basis, record the total carbon purchased and delivered for each individual municipal waste combustion unit at your plant. Include supporting documentation.
  - (5) Required quarterly usage of carbon for the municipal waste combustion plant, calculated using equation 4 or 5 in [§ 60.1935(f)](/cfr/40/60.1935.md?p=f). If you choose to evaluate required quarterly usage for carbon on a municipal waste combustion unit basis, record the required quarterly usage for each municipal waste combustion unit at your plant. Include supporting calculations.
- (b) **Records of low carbon feed rates.** Document three items:
  - (1) The calendar dates when the average carbon feed rate over an 8-hour block was less than the average carbon feed rates determined during the most recent stack test for dioxins/furans or mercury emissions (whichever has a higher feed rate).
  - (2) **Reasons for the low carbon feed rates.**
  - (3) **Corrective actions you took or are taking to meet the 8-hour average carbon feed rate requirement.**
- (c) **Records of minimum carbon feed rate data.** Document three items:
  - (1) Calendar dates for which you did not collect the minimum amount of carbon feed rate data required under [§ 60.1825](/cfr/40/60.1825.md).
  - (2) **Reasons you did not collect the minimum data.**
  - (3) **Corrective actions you took or are taking to get the required amount of data.**
- (d) **Records of exclusions.** Document each time you have excluded data from your calculation of average carbon feed rates and the reasons the data were excluded.
- (e) **Records of calendar dates.** Include the calendar date on each record.

## Notes

### Source

Source: 65 FR 76384, Dec. 6, 2000, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.