2008-08-15_PERMIT FILE - C1981008A

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 8/15/2008
• Doc Name: NPDES Discharge Permit
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-18
• Media Type: D
• Archive: Yes

PART I
Page No. 30
Permit No.: CO-0000213
Effluent Characteristic Method Detection Limits, ue/1
Arsenic 10
Cadmium 0.5
Chromium 10
Chromium, Hexavalent 10
Copper $
Iron 100
Lead 5
Manganese 600
Mercury 0.003
Nickel 20
Phenols 50
Selenium 10
Silver 0,2
Zinc 10
These limits apply to the total recoverable or the potentially dissolved fraction of metals.
For hexavalent chromium, samples must be unacidified so dissolved concentrations will be measured rather than
potentially dissolved concentrations. The procedure for determining settleable solids is contained in 40 CFR 434.64. The
method detection limit for measuring settleable solids under this part shall be 0.4 ml/1.
4. Records
The permittee shall establish and maintain records. Those records shall include the following:
a. The date, type, exact location, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) the analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used;
f. The results of such analyses; and
g. Any other observations which may result in an impact on the quality or quantity of the discharge as indicated in 40
CFR 122.44 (i)(1)(iii).
The permittee shall retain fora minimum of three (3) years records of all monitoring information, including all original
strip chart recordings for continuous monitoring instrumentation, all calibration and maintenance records, copies of all
reports required by this permit and records of all data used to complete the application for this permit. This period of
retention shall be extended during the course of any unresolved litigation regarding the discharge of pollutants by the
permittee or when requested by the Division or EPA.
5. Flow Measuring Device
If not already a part of the permitted facility, within ninety (90) days after the effective date of the permit, a flow
measuring device shall be installed to give representative values of effluent quantities at the respective discharge points.
Unless specifically exempted, or modified in Part I.E.S of this permit, a flow measuring device will be applicable at all
designated dischazge points.
At the request of the Division, the permittee shall show proof of the accuracy of any flow-measuring device used in
obtaining data submitted in the monitoring report. The flow-measuring device must indicate values within ten (10)
percent of the actual flow being dischazged from the facility.
6. Signatory and Certification Requirements
Attachment 2.05.3(3)-18-34