2015-12-22_PERMIT FILE - C1984065

• Permit No: C1984065
• IBM Index Class Name: Permit File
• Doc Date: 12/22/2015
• Doc Name: Colorado Discharge Permit System
• Section_Exhibit Name: Appendix 4.7-8
• Media Type: D
• Archive: No

Appendix 4.7-8
PART I
Page 7 of 31
Permit No.: C00048972
F. CORRECTIVE ACTIONS
1. Conditions that must be Eliminated
If any of the following conditions occur within the drainage areas associated with the referenced outfalls at the
permitted facility (as identified by the permittee; the Division; or an EPA official, or local, or State entity), the
permittee must review and revise the selection, design, installation, and implementation of facility control
measures to ensure that the condition is eliminated and will not be repeated in the future:
a. an unauthorized release or discharge (e.g., spill, leak, or discharge of non-stormwater not authorized by a
CDPS permit) occurs;
b. facility control measures are not stringent enough for the discharge to meet applicable water quality
standards;
c. modifications to the facility control measures are necessary to meet the practice -based effluent limits in
this permit; or
d. the permittee finds in a facility inspection, that facility control measures are not properly selected,
designed, installed, operated or maintained.
2. Condition that Requires Review and Modification
If the following condition occurs, the permittee must review the selection, design, installation, and
implementation of facility control measures to determine the appropriate modifications necessary to attain the
effluent limits in this permit:
a. construction or a change in design, operation, or maintenance at the facility significantly changes the
nature of pollutants discharged in stormwater from the facility, or significantly increases the quantity of
pollutants discharged.
3. Corrective Action Reports and Deadlines
The permittee must document discovery of any condition listed in the INSPECTIONS section above, within 24 hours
and 5 days as described below, submit the documentation in an annual report as required in the REPORTING AND
RECORDKEEPING section, and retain a copy onsite with the facility SWMP as required in the STORMWATER
MANAGEMENT PLAN section.
a. 24 hour documentation requirement:
Within 24 hours of discovery of any condition listed in the INSPECTIONS section, the permittee must
document the following information:
i. Identification of the condition triggering the need for corrective action review;
ii. Description of the problem identified; and
iii. Date the problem was identified.
b. Five (5) day documentation requirement:
Within five (5) days of discovery of any condition listed in this section, the permittee must document the
following information:
i. Summary of corrective action taken or to be taken (or, for triggering events that require Review and
Modification and the permittee determines that corrective action is not necessary, the basis for this
determination);
ii. Notice of whether SWMP modifications are required as a result of this discovery or corrective action;
iii. Date corrective action initiated; and
iv. Date corrective action completed or expected to be completed.
4. Control measure modification