HYDRO24291

• Permit No: C1981044
• IBM Index Class Name: Hydrology
• Doc Name: MONITORING REQUIREMENTS
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERMIT, PART I
Page lc cf 13
Permit 1V~~. CO.0034142
(b) Effective during periods of precipitation greater than the 10-year, 24-hour precipitation event for this facility
k/:
Any discharge or increase in the volume of a discharge caused by precipitation within any 24-hour
precipitation event (or snowmelt of equivalent volume) may comply with the following limitations instead of
the limitations of item a) immediately preceding.
Effluent Parameter
Flow, MGD
Total Dissolved Solids, mg/1 g/, h/
pH, s.u. (minimum-maximum)
Oil and Grease, mg/1
Discharee Limitations
saDa~ Ave ~/
N/A
N/A
N/A
N/A
There shall be no discharge of Floating solids or visible oil sheen f/.
See Part I.D for Footnotes.
B. MONITORIIVG REQUIREMENTS
1. Freauencv and Sample Tvce
Daily Max d
Report
Report
6.5-9.0
10
In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified
in Section A, the permittee shall monitor all effluent parameters at the following frequencies. Such monitoring
will begin immediately and last for the life of the permit unless otherwise noted.
(a) Outfall 003, Outfall 022, and Ou[fall 024
Effluent Parameter Measurement Frequency d/
Flow, MGD
Total Suspended Solids, mg/I
Oil and Grease, mg/1
pH, s.u.
Potentially Dissolved Iron, mg/I
Total Recoverable Zinc, mg/1
Total Dissolved Solids, mg/I d/, g/, h
Whole Effluent Toxicity, Acute d/, nl
(Outfalls 022, 024)
Whole Effluent Toxicity, Chronic
(Outfall 003)
1/week
2/month
1/week
1 /week
1/week
2/month
1/quarter
1lquarter
(see Parts 1.6.4 through I.B.12)
1 /quarter
(See Part I.B.11)
Sample 7y~e e/
Instantaneous or Continuous
Grab
Visual f7
Grab
Grab
Grab
Grab
Grab
Composite
See Part I.D fur Footnotes.