In accordance with 5 CFR 1320,OMB is not approving the information collection at this time. Prior to publication of the final rule, the agency must submit to OMB a summary of all comments received on the information collection and any changes made in response to these comments.
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EPA is proposing national emission standards for hazardous air pollutants for gold mine ore processing and production. The proposed rule applies to gold mine facilities engaged in processing gold ore to recover gold using one or more of the following process units: roasters, autoclaves, carbon kilns, melt furnaces, retorts, electrowinning, and/or pregnant tanks; and have the potential to emit mercury for which the source category was listed. All gold mine facilities subject to the rule would be required to comply with emission standards for mercury. The standards are based on the maximum achievable control technology for this source category. Gold mine facilites subject to emission standards would be required to conduct a performance test to demonstrate annual compliance with the mercury standard. Monitoring requirements for gold mine facilities with roasters would include either continuous monitoring of mercury emissions from roaster stacks or weekly samples of mercury concentration, both coupled with parametric monitoring of the mercuric chloride scrubbers on roasters. EPA is proposing three options for monitoring requirements for gold mine facilities with processes controlled by carbon adsorbers: (1) sampling of the exit stream from the carbon bed for mercury, (2) sampling the carbon for adsorbed mercury, and (3) replacing the bed at specified intervals based on historical data on carbon bed life. The inlet to the carbon adsorber would also be monitored for temperature. For wet scrubbers, EPA is proposing that the water flow rate and scrubber pressure drop be monitored. Potential respondents include 21 existing gold mine ore processing and production facilites; no new gold mine facilites are expected during the 3-year clearance period of this ICR. Total annual responses attributable to this ICR for existing sources are two one-time notifications; notification of applicability and notification of compliance status. The final rule allows 2 year after promulgation for existing gold mine ore processing and production facilities to comply with these requirements.
EPA is under court order to propose standards for gold mine ore processing and production facilities. This increase burden results from a new rule 40 CFR part 63, subpart EEEEEEE under section 112 of the Clean Air Act.
On behalf of this Federal agency, I certify that the collection of information encompassed by this request complies with 5 CFR 1320.9 and the related provisions of 5 CFR 1320.8(b)(3).
The following is a summary of the topics, regarding the proposed collection of information, that the certification covers:
(i) Why the information is being collected;
(ii) Use of information;
(iii) Burden estimate;
(iv) Nature of response (voluntary, required for a benefit, or mandatory);
(v) Nature and extent of confidentiality; and
(vi) Need to display currently valid OMB control number;
If you are unable to certify compliance with any of these provisions, identify the item by leaving the box unchecked and explain the reason in the Supporting Statement.
2383ss01.doc
NESHAP for Gold Mine Ore Processing