GENERAL41025

• Permit No: M1990041
• IBM Index Class Name: General Documents
• Doc Date: 6/29/1993
• Doc Name: COLO WASTEWATER DISCHARGE PERMIT SYSTEM CO-0043168 GOLDEN MILL JOINT VENTURE
• From: CDOH
• To: GOLDRUSH MINING CORP
• Media Type: D
• Archive: No

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R. MONITORING REQUIREMENTS
8. Phase II THE (Continued)

PART I
Page lg of 19
Permit No. CO-0043168
Toxicant/source identification and control efforts are designed to
identify toxicants, identify the sources of toxicants, and control
whole effluent toxicity by eliminating the introduction of toxicants
into the wastewater treatment facility. Toxicity identification
studies performed by the permittee shall be in general accordance with
accepted methods for Toxicity Identification Procedures and Toxicity
Confirmation Procedures. The Phase II THE permit conditions may be
amended, if so requested and justified by the permittee.
The Phase II THE report shall indicate the results of the Phase II THE
study. If the Phase II THE results in the identification of the
toxicants, the sources of toxicants, or treatment for elimination of
the toxicant, the permittee shall submit for Division approval a
control program to control WET within 60 days of submission (date of
receipt) of the Phase II THE Report, and shall proceed to implement
such plan within 7 days following receipt of written approval from the
Division.
If toxicity disappears during the Phase II TRE, the permittee shall
submit written notification to that effect to the Division. The
Division may reyuire the permittee to conduct accelerated testing to
de.menstrate the continued absence of. toxicity. If, a_'ter completing
any Uivision directed accelerated testing, no acute toxicity i~ found
tc exist, the perrittee shall resume normal quarterly testing.
9. Control Proeram
If required pursuant to Part I.B of this permit, the permittee shall
develop a control program to eliminate WET, through the identification
and elimination of any toxicants or toxicant sources responsible for
WET, or through the identification and implementation of toxicant
treatability processes. The control program, along with any
cost benefit analysis to determine whether the costs of construction
bear a reasonable relationship to the resulting benefits, shall be
submitted within the specified time frames. Such cost benefit analysis
shall be used in accordance with Section 25-8-503(8) and (9), C.R.S.
The control program, as submitted to or revised by the Division, may be
incorporated into the permit.
A control program may include, but shall not be limited to: additional
pretreatment requirements imposed on specific indirect permittees by
POTW's, modification of internal source control programs by industries,
modifications of treatment plants, and/or best management practices for
spills, leaks, etc.
Doc 1003iI Revised 12-30-91