HYDRO21737

• Permit No: M1977306
• IBM Index Class Name: Hydrology
• Doc Date: 6/23/2005
• Doc Name: water sampling reports
• From: cotter
• To: dmg
• Media Type: D
• Archive: No

Permit, PART I
Page No. 4
Permit No.: CO-0036251
MONITORING REQUIREMENTS
1. Frequencv and Sample Tvpe
In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified in Part
LA.1, the permittee shall monitor all effluent pazameters at the following frequencies. Such monitoring will begin
immediately and last for the life of the pemrit unless otherwise noted. The results of such monitoring shall be reported on the
Discharge Monitoring Report form (See Part I.E.).
a. Outfalls 001 & 002
Effluent Parameter
Flow, MGD
Oil and Grease, mg/1
pH, standard units
Total Suspended Solids, TSS, mg/1
Total Zinc, mg/I
Total Radium 226, picocuries/1
Dissolved Radium 226, picocuries/1
Total Radium 226, picocuries/1
Total Radium 228, picocuries/1
Total Natural Uranium, mg/1
Total Dissolved Solids, mg/1
Measurement Frequencv
Weekly
Weekly
Weekly
Monthly
Monthly
Monthly
Monthly
Monthly
Quarterly
Monthly
Quarterly
Samnle Type
Instantaneous or Continuous
Visual
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Self-monitoring sampling by the permittee for compliance with the monitoring requirements specified above shall be
performed at the following location(s): outfa11001, treated mine drainage water from the JD-7 mine which is prior to entering
the unnamed tributary to East Paradox Creek; and outfa11002, treated mine drainage water from the ID-9 mine which is prior
to entering the unnamed tributary to Fawn Springs which goes to Bull Canyon.
If the permittee, using the approved analytical methods, monitors any pazameter more frequently than required by this pemut,
then the results of such monitoring shall be included in the calculation and reporting of the values required in the Discharge
Monitoring Report Form (DMRs) or other forms as required by the Division. Such increased frequency shall also be
indicated.
b. Oil and Grease Monitorin¢
For every outfall with oil and grease monitoring, in the event an oil sheen or floating oil is observed, a grab sample shall
be collected, analyzed, and reported on the appropriate DMR. In addition, corrective action shall be taken immediately
to mitigate the discharge of oil and grease. A description of the corrective action taken should be included with the
DMR.
2. Salinity Parameters
1n order to obtain an indication of the quantity of Salinity, measured as total dissolved solids (TDS), being discharged from
the site the permittee shall monitor the wastewater effluent at the following frequencies:
Outfall Frequencv Sample Type
001 Quarterly Grab
002 Quarterly Grab
Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be taken at those
locations listed in Part I.B.I.
AMENDED: September 12, 2003 EFFECTIVE: November 1, 2003 EXPIRES: January 31, 2008