[Code of Federal Regulations]

[Title 40, Volume 29]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR503.46]



[Page 851]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 503_STANDARDS FOR THE USE OR DISPOSAL OF SEWAGE SLUDGE--Table of 

Contents

 

                         Subpart E_Incineration

 

Sec.  503.46  Frequency of monitoring.



    (a) Sewage sludge. (1) The frequency of monitoring for beryllium 

shall be as required in subpart C of 40 CFR part 61, and for mercury as 

required in subpart E of 40 CFR part 61.

    (2) The frequency of monitoring for arsenic, cadmium, chromium, 

lead, and nickel in sewage sludge fed to a sewage sludge incinerator 

shall be the frequency in Table 1 of Sec.  503.46.



     Table 1 of Sec.   503.46--Frequency of Monitoring--Incineration

------------------------------------------------------------------------

 Amount of sewage sludge \1\ (metric

       tons per 365 day period)                    Frequency

------------------------------------------------------------------------

Greater than zero but less than 290..  Once per year.

Equal to or greater than 290 but less  Once per quarter (four times per

 than 1,500.                            year).

Equal to or greater than 1,500 but     Once per 60 days (six times per

 less than 15,000.                      year).

Equal to or greater than 15,000......  Once per month (12 times per

                                        year).

------------------------------------------------------------------------

\1\ Amount of sewage sludge fired in a sewage sludge incinerator (dry

  weight basis).



    (3) After the sewage sludge has been monitored for two years at the 

frequency in Table 1 of Sec.  503.46, the permitting authority may 

reduce the frequency of monitoring for arsenic, cadmium, chromium, lead, 

and nickel.

    (b) Total hydrocarbons, oxygen concentration, information to 

determine moisture content, and combustion temperatures. The total 

hydrocarbons concentration and oxygen concentration in the exit gas from 

a sewage sludge incinerator stack, the information used to measure 

moisture content in the exit gas, and the combustion temperatures for 

the sewage sludge incinerator shall be monitored continuously.

    (c) Air pollution control device operating parameters.For sewage 

sludge incinerators subject to the requirements in subpart O of 40 CFR 

part 60, the frequency of monitoring for the appropriate air pollution 

control device operating parameters shall be the frequency of monitoring 

in subpart O of 40 CFR part 60. For all other sewage sludge 

incinerators, the appropriate air pollution control device operating 

parameters shall be at least daily.



(Approved by the Office of Management and Budget under control number 

2040-0157)



[58 FR 9387, Feb. 19, 1993, as amended at 64 FR 42573, Aug. 4, 1999]