7 Del. Admin. Code § 1121-11.0

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

Section 1121-11.0 - Emission Standard for Beryllium

11.1 The provisions of this 11.0 of this regulation are applicable to the following stationary sources:

11.1.1 Extraction plants, ceramic plants, foundries, incinerators, and propellant plants which process beryllium ore, beryllium, beryllium oxide, beryllium alloys, or beryllium-containing waste.

11.1.2 Machine shops which process beryllium, beryllium oxides, or any alloy when such alloy contains more than 5% beryllium by weight.

11.2 Emission Standards

11.2.1 Emissions to the atmosphere from stationary sources subject to the provisions of this 11.0 of this regulation shall not exceed 10 grams of beryllium over a 24-hour period except as provided in 11.2.2 of this regulation.

11.2.2 Rather than meet the requirement of 11.2.1 of this Section regulation an owner or operator may request approval from the Secretary to meet an ambient concentration limit of beryllium in the vicinity of the stationary source of 0.01 g/m³, averaged over a 30-day period.

11.2.2.1 Approval of such requests may be granted by the Secretary provided that:

11.2.2.1.1 At least three years of data is available which in the judgment of the Secretary demonstrates that the future ambient concentrations of beryllium in the vicinity of the stationary source will not exceed 0.01 g/m³, averaged over a 30 day period. Such three-year period shall be the three years ending 30 days before the effective date of this standard.

11.2.2.1.2 The owner or operator requests such approval in writing within 30 days after the effective date of this standard.

11.2.2.1.3 The owner or operator submits a report to the Secretary within 45 days after the effective date of this standard which report includes the following information:

11.2.2.1.3.1 Description of sampling method including the method and frequency of calibration.

11.2.2.1.3.2 Method of sample analysis.

11.2.2.1.3.3 Averaging technique for determining 30-day average concentrations.

11.2.2.1.3.4 Number, identity, and location (address, coordinates, or distance and heading from plant) of sampling sites.

11.2.2.1.3.5 Ground elevations and height above ground of sampling inlets.

11.2.2.1.3.6 Plant and sampling area plots showing emission points and sampling sites. Topographic features significantly affecting dispersion including plant building heights and locations shall be included.

11.2.2.1.3.7 Information necessary for estimating dispersion including stack height, inside diameter, exit gas temperature, exit velocity or flow rate, and beryllium concentration.

11.2.2.1.3.8 A description of data and procedures (methods or models) used to design the air sampling network (i.e., number and location of sampling sites).

11.2.2.1.3.9 Air sampling data indicating beryllium concentrations in the vicinity of the stationary source for the three-year period specified in 11.2.2.1.1 of this section regulation. This data shall be presented chronologically and include the beryllium concentration and location of each individual sample taken by the network and the corresponding 30-day average beryllium concentrations.

11.2.2.2 Within 60 days after receiving such report, the Secretary will notify the owner or operator in writing whether approval is granted or denied. Prior to denying approval to comply with the provisions of 11.2.2 of this regulation, the Secretary will consult with representatives of the stationary source for which the demonstration report was submitted.

11.2.3 The burning of beryllium or beryllium-containing waste, except propellants, is prohibited except in incinerators, emissions from which must comply with the standard.

11.3 Each owner or operator required to comply with 11.2.1 of this regulation shall test emissions from his source.

11.3.1 Within 90 days of the effective date in the case of an existing source or a new source which has an initial startup date preceding the effective date; or

11.3.2 Within 90 days of startup in the case of a new source which did not have an initial startup date preceding the effective date.

11.3.3 The Secretary shall be notified at least 30 days prior to an emission test so that he may at his option observe the test.

11.3.4 Samples shall be taken over such a period or periods as are necessary to accurately determine the maximum emissions which will occur in any 24-hour period. Where emissions depend upon the relative frequency of operation of different types of processes, operating hours, operating capacities, or other factors, the calculation of maximum 24-hour period emissions will be based on that combination of factors which is likely to occur during the subject period and which result in the maximum emissions. No change in the operation shall be made, which would potentially increase emissions above that determined by the most recent source test, until a new emission level has been estimated by calculation and the results reported to the Secretary.

11.3.5 All samples shall be analyzed and beryllium emissions shall be determined within 30 days after the source test. All determinations shall be reported to the Secretary by a registered letter dispatched before the close of the next business day following such determination.

11.3.6 Records of emission test results and other data needed to determine total emissions shall be retained at the source and made available for inspection by the Secretary, for a minimum of two years.

11.4 Air Sampling

11.4.1 Stationary sources subject to 11.2.2 of this regulation shall locate air sampling sites in accordance with a plan approved by the Secretary. Such sites shall be located in such a manner as is calculated to detect maximum concentrations of beryllium in the ambient air.

11.4.2 All monitoring sites shall be operated continuously except for a reasonable time allowance for instrument maintenance and calibration, for changing filters, or for replacement of equipment needing major repair.

11.4.3 Filters shall be analyzed and concentrations calculated within 30 days after filters are collected. Records of concentrations at all sampling sites and other data needed to determine such concentrations shall be retained at the source and made available, for inspection by the Secretary for a minimum of two years.

11.4.4 Concentrations measured at all sampling sites shall be reported to the Secretary every 30 days by a registered letter.

11.4.5 The Secretary may at any time require changes in, or expansion of, the sampling network.

12/07/1988

7 Del. Admin. Code § 1121-11.0