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PARTI
<br />Page No. 3
<br />Pemut No. COG-500000
<br />A. COVERAGE UNDER THIS PERMIT
<br />1. This general permit authorizes stormwater and process water discharges from sand and gravel operations and other non-
<br />metallic mineral mining (except fuel), including asphalt and concrete batch plants into surface waters of the State of
<br />Colorado. Discharges to groundwater are not authorized under this general permit, and would be subject to the
<br />jurisdiction of the Division of Reclamation, Mining and Safety.
<br />This permit may cover the stormwater and process water discharges from crushed stone, construction sand and gravel,
<br />phosphate rock, industrial sand, graphite, and concrete or hot asphalt batch plants as defined in 40 CFR Part 436. This
<br />general permit does not cover the discharge from any domestic type wastewaters, or operations mining or processing
<br />from gypsum, asphaltic mineral, asbestos and wollastonite, barite, fluorspar, salines from brine lakes, borax, potash,
<br />sodium sulfate, fiasch sulfur, bentonite, magnesite, diatomite, jade, novaculite, or tripoli facilities. An individual
<br />permit may be necessary for the coverage of domestic wastewater in combination with any other allowable discharge due
<br />to the incorporation of baseline conditions into the federal limitations. Due to the nature of general permits, determinations
<br />of the assimilative capacity of the receiving stream(s) are not available. All limitations set in this permit are based upon the
<br />most stringent water quality standards, the Regulations for Effluent Limitations, and/or the federal effluent limitation
<br />guidelines.
<br />Discharges may be covered under this permit at the Division's discretion, providing that such wastewater would not require
<br />effluent limitations and/or monitoring requirements other than those contained in this permit. Such determinations will be
<br />made on a case-by-case basis upon review of the permit application and any additional relevant information. If discharge
<br />from one or more of the above listed sources require additional limitations and/or monitoring requirements, an individual
<br />permit may be required. Multiple discharge points from one facility may be authorized through this permit providing all
<br />meet these criteria.
<br />2. This permit does not constitute authorization under 33 U.S.C. 1344 (Section 404 of the Clean Water Act) of any stream
<br />dredging or filling operations.
<br />In order to apply for certification under this general permit, the owner, operator, and/or authorized agent of the subject facility
<br />shall submit by certified mail or hand delivery, the completed General Permit for Nonmetallic Mineral Mining and Processing
<br />(Sand and Gravel) Application.
<br />If the discharge is to a storm sewer system, ditch, or other manmade conveyance, approval from the owner of the system must
<br />be obtained before discharge.
<br />At least 30 days before the anticipated date of discharge, the application in its entirety, shall be submitted to:
<br />Colorado Department of Public Health and Environment
<br />Water Quality Control Division
<br />Permits Section
<br />4300 Cherry Creek Drive South
<br />Denver, CO 80246
<br />The Division shall have up to thirty days after receipt of the above information to request additional data or deny the
<br />authorization to discharge under this general permit. Upon receipt of additional information, the Division shall have an
<br />additional 30 days to issue or deny authorization to discharge. If the Division determines that a new facility does not fall
<br />under the authority of the general permit, then the information received will be processed for an individual permit, and the
<br />applicant shall be notified of such a determination. If during the renewal process, the Division determines that a facility no
<br />longer qualifies for the general permit, the facility will be allowed to discharge under the general permit until an individual
<br />permit is issued.
<br />4. The final limitations to be applied under this permit shall take into consideration the application of the appropriate
<br />discharge categories, applicable water quality standards, control regulations, total maximum daily loads, and other
<br />regulatory requirements. Potential limitations may include but are not limited to the general limitations as provided in Part
<br />LB below.
<br />5. Authorization to discharge under this general permit shall expire on June 30, 2013. The Division must evaluate this
<br />general permit once every five years and must recertify all applicants' authority to discharge under the general permit at
<br />such time. Therefore, a permittee desiring continued coverage under the general permit must reapply by November 30,
<br />2012. The Division will determine if the applicant continues to operate under terms of the general permit.
<br />6. No chemicals shall be added to the discharge unless the Division grants specific approval in a certification, letter, or other
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