HYDRO20248

• Permit No: M1980244
• IBM Index Class Name: Hydrology
• Doc Date: 10/11/1994
• Doc Name: RATIONALE FOR PUBLIC NOTICE
• Media Type: D
• Archive: No

COLORADO DEPAR77NENT OF HEALTH, Water Quality Control Division
Rationale -Page 27, Permit No. CO-0043648
b. Discharges From the Valley Leach Facility Thar Qualh~ for Annual Precipitation or Storm Exemptions
The permittee shall provide verbal notification within 24 hrs of its discovery, and submit written
notification to the Division within 5 days of its discovery, a description of any discharge from the Valley
Leach Facility that may quay for the annual precipitation or storm exemptions described in sections
VI.A.2 and 3. The permittee shall submit in thrs notification a description of what measures will be taken
to control or eliminate the discharge.
Within 10 days of its discovery, the permittee shall submit to the Division the results of the first laboratory
analysis of any discharge subject to this not~catron requiremem. Unless directed differently by the
Division, all subsequent laboratory results shall be submitted as an attachment to the monthly Discharge
Monitoring Report for the month during which the discharge occurred.
After any discharge subject to these provisions has been eliminated, the permittee shall submit notification
to the Division that such discharge has ceased, within 5 days of the termination of the discharge.
c. The permittee is required to follow the notfcation requirements which apply to points 002A and 003A,
and which are explained in the e,[fluenr limit and monitoring condition sections of this rationale. The
permittee shall provide verbal notfcarion within 24 hrs, and written notification within S days.
d. Annual Report
The permittee shall submit, by February 2817t of each year, an annual report which will include the
following information:
(1 J For the potential drscharges associated with the numbered drscharge points specifically ideas fled in
the tables of effluent limitations and monitoring conditions li-rted in sections V1. A. 1. and VI. B. 1. of the
rationale, the permittee must submit analyses which demonstrate compliance with the "No Discharge"
limitation specified in section VI.A. 1. of this rationale. Such demonstration may incorporate whatever
analyses the permittee determines is necessary, but the annual report must include the speck
analyses listed under the next heading.
(2J For each ojrhe numbered discharge points specfcally identified in the tables of effluent limitations
and monitoring conditions listed in sections VI. A. 1. and Vl.B.1. of the rationale, the permittee must
submit the following analyses of (a) ows, (bJ pollutant concentrations, and (cJ pollutant mars
loadings measured at or calculated for each point:
iJ n statistical sumnmry of the data collected during the year for which the report is being prepared;
iiJ a comparison of the most recent year's data with pre-project data;
iiiJ trend mmlyses showing how flows, pollutant cm~centrations, and pollutant loadings might be
changing over time;
itJ a summary of the most recent year's pollutant concentrations which exceeded stream standards.
(3J a summary of all discharges from sources not specifically identhed in the permit, or discharges from
the Valley Leach Facility that qualified for the annual precipitation or storm exemptions listed in
section VI. A. 2. and 3. of tftis rationale. The summary for each discharge shall include:
iJ the location of the discharge;
iiJ the dates when the discharge occurred;
iiiJ a briejdircussion of how the discharge occurred and how it was or will be eliminated;
ivJ a statistical summary of the discharge flows, pollutant concentrations, and pollutant loadings;