2023-01-04_PERMIT FILE - M2022013 (22)

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PART Page 9 of 67 Permit No.: COG500000 Modifications include but are not limited to: adding or removing discharge outfalls, introducing new or additional chemicals to the treatment process or effluent, modifying treatment in a manner that would result in a new or altered discharge in terms of location or effluent quality,changing permit coverage from one that authorizes process water discharges(or process water and stormwater discharges),to one that authorizes stormwater discharges only because the process water discharge has been terminated,etc. Note that modifications may be subject to a fee,consistent with Part II of the permit. a. The permittee must submit a complete and accurate Modification Form,signed by the permittee,to the Division at the address listed in Part I.A.4,at least 60 days prior to implementing any requested modifications that result in a discharge to state waters. b. The permittee is not authorized to discharge under the modified conditions until the modified certification is issued and effective. 7. Permit Termination Procedures To terminate permit coverage,the permittee must submit a complete and accurate Notice of Termination form,signed by the permittee,to the Division at the address listed in Part I.A.4. The permittee's authorization to discharge under this permit terminates as notified by the Division. A Notice of Termination request that does not meet one or more of the conditions identified below is not valid.The permittee is responsible for complying with the terms of this permit until notified by the Division that the authorization is terminated. Conditions for a Notice of Termination request include: a. Termination Criteria for facilities with Division of Reclamation, Mining and Safety(DRMS)financial and performance warranties The Division may approve a Notice of Termination request when the following criteria are met for the entire sand and gravel facility: i. all permitted process water discharges authorized by this permit(as applicable to the facility),have ceased;and ii. all permitted stormwater discharges authorized by this permit have ceased because the industrial activity (including soil disturbing activities) has ceased,and no significant materials or industrial pollutants remain exposed to stormwater(i.e.,all raw materials, intermediate products, byproducts,finished products and waste products have been removed or are not exposed to stormwater); and iii. the DRMS has released the permittee from further responsibility for the facility,and the permittee provides documentation with the Notice of Termination request that DRMS approved the applicable financial and performance warranty release. b. Termination Criteria for facilities without DRMS financial and performance warranties The Division may approve a Notice of Termination request when the following criteria are met for the entire sand and gravel facility: i. all permitted process water discharges authorized by this permit(as applicable to the facility),have ceased; and ii. all permitted stormwater discharges authorized by this permit have ceased because the industrial activity (including soil disturbing activities) has ceased,and no significant materials or industrial pollutants remain exposed to stormwater(i.e.,all raw materials, intermediate products, byproducts,finished products and waste products have been removed or are not exposed to stormwater); and iii. the site has attained final stabilization,with little evidence of soil erosion or other runoff problem,as follows: a) a uniform, perennial vegetative cover has been established with a plant density of at least 70 percent of pre-disturbance levels,or equivalent permanent, physical erosion reduction methods have been employed; b) all alternatives to vegetation must be permanent, must stabilize all disturbed areas,and all stabilization control measures must be selected,installed,and implemented following good engineering, hydrologic, and pollution control practices adequate to prevent pollution or degradation of State waters;