HYDRO24575 - Laserfiche WebLink

Home Browse Search

PART I Page No. 7 Permit No. CO-0045161 C. DEFINTI'IONS OF TERbIS 9. "Recorder" requires the continuous operation of a chart and/or totalizer (or drinking water rotor meters or pump hour meters where previously approved.) 10. "Seven day average" means [he ari[hmetic mean of all samples collected in a seven consecutive day period. Such seven day averages shall be calculated for all calendaz weeks, which aze defined as begirmittg on Sunday and ending on Saturday. If [he calendar week overlaps two months (i.e. the Sunday is in one month and the Samrday in the following month), [he seven day average calculated for that calendar week shall be associated with the month that contains the Saturday. Samples may not be used for more than one reporting period. 11. "Thirty day average" means the ari[hmetic mean of all samples collected during a thirty consecutive-day period. The permittee shall report the appropriate mean of all self-monitoring sample data collected during the calendaz month on the Discharge Monitoring Reports. Samples shall not be toed for more than one rcporting period. 12. "Total recoverable metals' means that portion of a water and suspended sediment sample measured by the [oral recoverable analytical procedure, or the concen[ration of metals in an unfiltered sample following treatmen[ with hot dilute mineral acid as described in Section 4.1.4 of Manual of Methods for Chemical Analysis of Water and Wastes, il.S. Environmental Pro[ec[ion Agency, Mazch 1979, or iu equivalent. 13. 'Visual" observation is observing the dischazge to check for the presence of a visible sheen or floating oil. 14. "Weekly measuremen[ frequency'. Only one sample is required to be collec[ed during the calendaz week. The sample may be collected at any time during the calendaz week if a continual dischazge occurs. If the discharge is intermittent, [hen only one sample shall be collected during the week dta[ dischazge occurs. Additional samples may be collected a[ [he permittee's discre[ion. All samples shall be reported on the Dtschazge Monitoring Report. 1~. "Water Quality Conaol Division" or "Division" means the state Water Quality Control Division as established in 25-8-101 et al. Additional relevant deFnvtions aze found in the Colotado Water Quality Control Act, CRS §§ 25-8-101 et sea., the Colorado Diachar~e Permit System Re~ttlations, 5 CCR 1002fi1, § 61.0 et ~eq, and other applicable regulations. D. SPECIAL REQUIItEMENTS 1. Materials Containment Plan Pursuant to Sectiovs 61.8 (3) (f) and (r) of the Colorado Dischazge Permit System Regulations, the permittee is required to rubtnit a Materials Containment Plan. Such a plan shall be submitted to the Division within ninety days after the effective date of this permit and must be implemen[ed. The plan shall include information and procedures for the prevention and containment of spills of materials used, processed or stored at the facility which if spilled would have a reasonable probability of having a visible or otherwise detrimental impact on waters of the State !~z. The plan shall include, but not necessarily be limited to: a. A history of the spills which have occurred in the three yeazs preceding the effective date of this permit. The history shall include a discussion on the cause of the spills and the preventative measures designed [o eliminate them from reoccurring; b. A description of the reporting system which will be used [o no[ify, a[ a minimum, responsible facility management, the Division, the Environmental Pro[ection Agency, downstream water users within 5 miles downstream of [he facility, and local health officials; c. A description of preventative facilities (including overall facility plot) which prevent, contain, or [tea[ spills and unplanned dischazges; d. A list which includes the volumes or quanti[ies of all materials used, processed, or stored a[ the facility which represent a poten[ial spill threa[ to surface waters. The loca[ion of stored material shall be indicated on the facility plot submitted for item c;