7 Del. Admin. Code § 1120-7.0

Current through Register Vol. 28, No. 1, July 1, 2024

Section 1120-7.0 - Standards of Performance for Sewage Treatment Plants

7.1 Applicability. The applicable source to which the provisions of 7.0 of this regulation apply is each incinerator which burns the sludge produced by municipal sewage treatment facilities.

7.2 Standard for Particulate Matter. On and after the date on which the performance test required to be conducted by 1.4 of this regulation is completed, no person responsible for any sewage sludge incinerator subject to the provisions of 7.0 of this regulation shall discharge or cause the discharge into the atmosphere of:

7.2.1 Particulate matter at a rate in excess of 0.65 g/kg dry sludge input (1.30 lb/ton dry sludge input).

7.2.2 Any gases which exhibit 20% opacity or greater.

7.3 Emission Monitoring. The person responsible for any sludge incinerator subject to the provisions of 7.0 of this regulation shall:

7.3.1 Install, calibrate, maintain and operate a flow measuring device which can be used to determine either the mass of volume of sludge charged to the incinerator. The flow measuring device shall have an accuracy of +/-5.0% over its operating range.

7.3.2 Provide access to the sludge charged so that a well-mixed representative grab sample of the sludge can be obtained.

7.4 Test Methods and Procedures

7.4.1 The reference methods, except as provided for in 1.4.2 of this regulation, to be used to determine compliance with the standards prescribed in 7.2 of this regulation, are as follows:

7.4.1.1 Method 5 for concentration of particulate matter and associated moisture content,

7.4.1.2 Method 1 for sample and velocity traverses,

7.4.1.3 Method 2 for volumetric flow rate, and

7.4.1.4 Method 3 for gas analysis.

7.4.2 For Method 5, the sampling time for each run shall be at least 60 minutes and the sampling rate shall be at least 0.015 dscm/min (0.53 dscf/min.), except that shorter sampling times, when necessitated by process variable or other factors, may be approved by the Secretary.

7.4.3 Dry sludge charging rate shall be determined by methods set forth in Section 60.154 of 40 CFR 60, dated July 1, 1982, which are hereby adopted by reference.

04/18/1983

7 Del. Admin. Code § 1120-7.0