GENERAL43146

• Permit No: M1977022
• IBM Index Class Name: General Documents
• Doc Date: 9/29/1993
• Doc Name: SAND AND GRAVEL MINING AND PROCESSING GERERAL PERMIT CERTIFICATION OF COMPLETION AND IMPLEMENTATION
• Media Type: D
• Archive: No

COLORADO DEPARTMENT OF HEALTH
Water Quality Control Division
Certification - Page 3 Permit No. COG-500209
VI. DISCUSSION:
Applicable effluent limitations and monitoring requirements regarding
active mining outfalls are addressed in Part I.B.(1-4) of the general
permit.
Total dissolved solids monitoring of the discharge shall be required.
Total phosphorous monitoring shall not be required. See Part I.B.3 of the
general permit and Part V.A. of the rationale for more information.
The permittee will be required to develop and implement a Storm Water
Management Plan (SWMP). The plan shall identify potential sources of
pollution (including sediment) which may reasonably be expected to affect
the quality of stormwater discharges associated with the mining activity.
In addition, the plan shall describe and ensure the implementation of best
management practices (BMPs) which will be used to reduce the pollutants in
stormwater discharges associated with mining activity. Although some
activities may already be in place, the SWMP will require the permittee to
coordinate best management practices so the result is the reduction or
elimination of pollutants reaching state waters from areas not limited by
effluent limitations. Significant changes in the permittee's mining or
stormwater management practices may require coordination with the Colorado
Division of Minerals and Geology (CDMG) (formerly CMLRD) regarding the
facility's mining permit. For specifics of the Plan and additional
requirements, see Part I.C. of the general permit.
VII. SPECIFIC INFORMATION OF CONCERN TO THE PERMITTEE:
The permittee is encouraged to read the
understanding of how the general permit was
permit itself to see what requirements exist
monitoring requirements are specified in
notification requirements for effluent viola
II.A.3.
general rationale for an
developed and to read the
Effluent limitations and
Part I.B., and special
=ions are addressed in Part
Based on the above information, Delta Sand and Gravel Company is certified
to discharge from the Pit //4 under the general permit for sand and gravel
mining and processing facilities, identified as Permit No. COG-500000.
All correspondence relative to this facility should reference the specific
facility permit No. COG-500209.
Completed By: Wes Canter (Science Applications In[erna[ional
Corporation)
9/4/92
Reviewzd By: