2008-12-04_PERMIT FILE - C1981033

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PARTI Page No. 7 Permit No.: CO-0044377 C. DEFINITIONS OF TERMS (continued) . 13. "Thirty (30) day aversge" means, except for fecal coliform bacteria, the arithmetic mean of all satrtples collected during a thirty (30) consecutive-day period. For fecal coliform bacteria, it is the geometric mean of all samples collected to a thirty (30) day period. ' he permittee shall report the appropriate mean of all self-monitoring sample data collected during the calendar month on the Discharge Monitoring Reports. Samples shall not be used for more than one (1) reporting period. 14. "Total Metals" means the concentration of metals determined on an unfiltered sample following vigorous digestion (Section 4.1.3), or the sum of the concentrations of metals in both the dissolved and suspended fractions, as descrtbed to t~/anual ojMethods for Chemical Analysis of Water and Wastes," U.S. Environmental Protection Agency, March 1979, or its equivalent. 15. "Total Recoverable Metals" means that portion of a water and suspended sediment sampple measured by the total recoverable analytical procedure described in "Methods for Chemical Analysis of Water and Wastes, " U.S. Environmental Protection Agency, March 1979 or its equivalent. 16. "Twenty four (24 hour compposite" sample is a combination of at least eight (8) sample aliqquots of at least 100 milliliters, collected at equally spaced intervals durin the operating hours of a facility over atwenty-four (24) hour period. For volatile pollutants, aliquots must be combined in the laboratory immediately before analysts. The composite must be flow proportional; either the time interval between each aliquot or the volume of each aliquot must be proportional to either the wastewater or effluent flow at the time of sampling or the, total wastewater or effluent flow since the collection of the previous aliquot. Aliquots may be collected manually or automatically. 17. "Twice Monthly" monitoring frequency means that two samples shall be collected each calendar month on separate weeks with at least one full week between the two sample dates. Also, there shall be at least one full week between the second sample of a month and the first sample of the following month. 18. "Visual" observation is observing the discharge to check for the presence of a visible sheen or floating oil. 19. "Water Quality Control Division" or "Division" means the state Water Quality Control Division as established in 25-8-101 et al.) Additional relevant definitions are found in the Colorado Water Quality Control Act, CRS §~ 25-8-101 et se ., the Colorado Discharge Permit System Regulations, Regulation 61 (5 CCR 1002-61) and other applicable regulations. D. SPECIAL REQUIREMENTS 1. Materials Containment Plan Pursuant to Sections 61.8(3)(g) and (r) of the Colorado Discharge Permit System Revelations, the: petmittee is required to submit a Materials Containment Plan. Such a plan was previously submitted to the Division. ~n update of the plan shall be submttted to the Division within ninety (90) days after the effective date of this permit and must be implemented. The update of the plan shall include changes in the information and procedures for the prevention and containment of spills of materials used, processed or stored at the faciltty~vhich if spfilled would have a reasonable probability of having a visible or otherwise detrimental impact on waters of the State - -. The updated plan shall include, but not necessarily be limited to: a. An updated history of the spills which have occurred in the three (3) years preceding the effective date of this perrrtit. The history shall include a discussion on the cause of the spills and a the preventative measures designed to eliminate them from reoccurring; b. An update of the reporting system which will be used to notify, at a minimum, responsible facility management, the Division, the Environmental Protection Agency, downstream water users within 5 miles downstream of the factlity, and local health officials; c. A description of anyy changes in the preventative facilities (including overall facility plot) which prevent, contain, or treat spills and unplanned discharges; d. A current list which includes the volumes or quantities of all materials used, processed, or stored at the facility which represent a potential spill threat to surface waters. The location of stored material shall be indicated on the facility plot submttted for item c; e. An implementation schedule for additional facilities which might be required in item c, but which are not yet operational; f. A current list of available outside contractors, agencies, or other sources which could be utilized in the event of a spill in order to clean up its effects. Ifthe facility is capable of handling spills in-house, this shall be documented in the plan; g. Provision for yearly review and updating of the contingency plan, plus resubmission of the plan to the Division if conditions and/or procedures at the factlity, change t~ie.original. plan. The foregoingg provisions shall in no way render inapplicable those requirements imposed by the Federal Water Pollution Control Act, 33 l~.S.C. $ 1.121, regulations prorrtulgated thereunder, the Colorado Water Quality Control Act, an,d. regulations promulgated thereunder. It is recommended that this plan be prepared by a professional engineer registered in the State of Colorado. Nothing herein contained shall be construed as allowing any discharge to waters of the State other than through the discharge points specifically authorized in this permit. Nothing hereiri contained shall be constriied.as excusing any liability the perlrtittee,might have, • civil or cnmmal, for any spill. The subrriittal of a Spill Prevention Control and Countermeasure Plan (SPCC Plan) as required by.40. CFR Part.•1 12 may satisfy all or. . ptirt:of this. requirement. Should additional materials exist on site which are not addressed in the SPCC Plan, addressing those materials as per.the above is required: Revised IO/29/2008