PERMFILE72825

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/18/2006
• Doc Name: NPDES Permit
• Section_Exhibit Name: Tab 15 Appendix 15-1
• Media Type: D
• Archive: No

PARTI
Page No. 18
Permit No.: CO-0000
i
e. Request For Relief ~
The permittee may request relief from further investigation and testing where Ithe toxicant has or has not been detemtined
and the Division has determined suitable treatment does not appear possible. iIn requesting such relief, the permittee shall
submit material sufficient to establish the following:
i. It has complied with terms and conditions of the permit compliance schedule for the PTI/TIE investigation and other
appropriate conditions as may have been required by the Division; '
ii. During the period of the toxicity incident it has been in compliance with ill other permit conditions, including, in the
case of a POTW, pre-treatment requirements;
iii. During the period of the tonicity incident i[ has properly maintained and operated all faoili[ies and systems of
treatment and control; and
iv. Despite the circumstances described in paragraphs i. and iii. above, the source and/or cause of toxicity could no[ be
located or resolved.
If deemed appropriate by the Division, the permit or the compliance schedule may be modified [o revise the ongoing
monitoring and toxicity investigation requirements to avoid an unproductive expenditure of the permittee's resources,
provided that the underlying obligation to eliminate any continuing exceedance of tha toxicity Limit shall remain.
f. Spontaneous Disappearance
If toxicity spontaneously disappears at any time after a test failure, the permittee shall notify the Division in writing
within 14 days of a demonstration of disappearance of the toxicity. The Division may require the permittee to develop
and submit additional information which may include, but is not ]united to, the results of additional testing. If no patte•
of toxicity is identified or recurring toxicity is not identified, the toxicity incidi;n[ response is considered closed and
nornal WET testing shall resume.
g. Toxicity Reopener
This permit may be reopened and modified (following proper administrative procedures) to include new compliance
dates, additional or modified numerical petmit limitations, a new or different compliance schedule, a change in the whole
effluent toxicity testing protocol, or any other conditions related to the control of toxicants if one or more of the following
events occur:
i. Toxicity has been demonstrated in the effluent and the permit does not contain a toxicity limitation.
ii. The PTI/TIE results indicate that the toxicant(s) represent pollutant(s) that may be controlled with specific numerical
limits, and [he Division agrees [hat the numerical controls are the most appropriate course of action.
iii. The PTI/TIL- reveals other unique conditions or characteristics which, in the opinion of the Division, justify the
incorporation of unanticipated special conditions in the permit.
iv. The Division may reopen this permit and impose chronic toxicity limits where chronic toxicity is identified
B. MONITORING REQUIREMENTS
1. Frequency and Sample "fvpe
In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified un Part
LA.1, the permittee shall monitor' all effluent parameters at the following frequencies. Such monitoring will begin
immediately and last for the life of dte permit unless otherwise noted. The results of such monitoring shall be reported on the
Discharge Monitoring Report form (Sec PartLE.)
Sec Part l,C. Im' llefinitions.