2011-08-18_HYDROLOGY - M1977306

• Permit No: M1977306
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/18/2011
• Doc Name: Colorado Discharge Permit System
• From: Water Quality Control Division
• To: Cotter Corporation
• Email Name: GRM
• Media Type: D
• Archive: No

COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division
Rationale — Page 13, Permit No. C00036251
B. Monitoring
Effluent Monitoring — Effluent monitoring will be required as shown in the permit document. Refer to
the permit for locations of monitoring points. Monitoring requirements have been established in
accordance with the frequencies and sample types set forth in the Baseline Monitoring Frequency,
Sample Type, and Reduced Monitoring Frequency Policy for Industrial and Domestic Wastewater
Treatment Facilities. This policy includes the methods for reduced monitoring frequencies based upon
facility compliance as well as for considerations given in exchange for instream monitoring programs
initiated by the permittee. This facility does not meet the requirement for performance -based
reductions in monitoring due to compliance issues with the previous permit.
Ensure Numeric Effluent Limits Can Be Met
Prior to the commencement of any discharge, the treated effluent must be sampled using grab method
for all parameters with a numeric limitation. All effluent must be contained until analyses have
confirmed that all numeric effluent limitations have been met. If the results of the initial sampling
exceed any numeric effluent limitation, additional treatment shall be completed and additional
sampling must be collected, post- treatment, to confirm compliance with the limitations. Additional
sampling and treatment shall be repeated, and all water shall be collected and retained, until monitoring
results for the treated effluent verify compliance with the numeric effluent limitations identified in the
permit. This requirement will not be imposed for TDS where report only is required.
C. Reporting
1. Discharge Monitoring Report — The Cotter Corporation facility must submit Discharge Monitoring
Reports (DMRs) on a monthly basis to the Division. These reports should contain the required
summarization of the test results for all parameters and monitoring frequencies shown in Part I.A of the
permit. See the permit, Part I.A, B, C and D for details on such submission.
2. Special Reports — Special reports are required in the event of an upset, bypass, or other noncompliance.
Please refer to Part II.A. of the permit for reporting requirements. As above, submittal of these reports
to the US Environmental Protection Agency Region VIII is no longer required.
D. Additional Terms and Conditions
1. Signatory and Certification Requirements — Signatory and certification requirements for reports and
submittals are discussed in Part I.D.6. of the permit.
E. Waste Minimization/Pollution Prevention
Waste minimization and pollution prevention are two terms that are becoming increasingly more
common in industry today. Waste minimization includes reducing the amount of waste at the source
through changes in industrial processes, and reuse and recycling of wastes for the original or some other
purpose (such as materials recovery or energy production). Pollution prevention goes hand -in -hand with
waste minimization. If the waste is eliminated at the front of the line, it will not have to be treated at the
end of the line. The direct benefits to the industry are often significant, both in terms of increased profit
and in public relations. This program can affect all areas of process and waste control with which an
industry deals. Elimination or reduction of a wastewater pollutant can also result in a reduction in an air
pollutant or a reduction in the amount of hazardous materials that must be handled or disposed.