HYDRO27537

• Permit No: C1980001
• IBM Index Class Name: Hydrology
• Doc Name: AUTHORIZATION TO DISCHARGE UNDER COLORADO DISCHARGE PERMIT SYSTEM
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

PART I
Permit No. CO-0032638
Page No. 18
D. SPECIAL REQUIREMENTS
2. Stormwater Requirements [continued)
g. Annual Report
The permittee will be required to submit an Annual Report, covering January 1 through December 3l of each year,
on the overall compliance with the SWMP. The Annual Report shall contain, at a minimum:
1) Name of permittee, address, phone number, and penni[ certification number.
2) A repon on the facility's overall compliance with the SWMP, including a progress repon on all remediation
activities.
3) A summary of each comprehensive Stormwater facility inspection made, including date, findings, and action
taken.
4) Results and interpretation of any stonnwater monitoring performed.
5) Certification language and signature by the permimee. (See Patt I.E.2 of the permit.)
The report will be due to the Division on or before February 15, of each year. The exact due date for the
pennittee's first Annual Report will be listed in their permit rationale. The Division reserves the right to require
additional information in the report, and more frequent reports, on a case-by-case basis, as needed.
A signed copy of the above report form(s) shall be submitted to the following address:
Colorado Department of Public Health & Environment
Water Quality Control Division
WQCD-P-B2
4300 Cheny Creek Drive South
Denver, Colorado 80246-1530
h. Termination of Stormwater Permit Covera¢e Requirement
I) Termination Criteria
a) Reclamation Permit Release: When a site has been reclaimed in accordance with the Colorado Division of
Minerals and Geology (CDMG) requirements and the site has been released from State reclamation
requirements, the permittee may request termination of the Stormwater coverage under this permit.
b) Termination in the absence of CDMG Permit: For facilities without CDMG permits, permittees wishing
to terminate Stormwater coverage under this permit through mine-waste remediation must amend their
SWMP to include the items listed in Part I.C.S, above, prior to implementation of the remediation work. In
addition, permittees seeking coverage under the Voluntary Cleanup Act must notify [he Division of their
intent 30 days before any remediation activities commence. The notification must include certification
language and signamre by the permittee. (See Part I.E.2 of the permit.)
Stormwater coverage under this permit may be terminated once raw materials, intermediate products,
byproducts, finished products and waste products (including acid generating material exposed by the mining
activity) have been removed or isolated and the site has been stabilized (with little evidence of soil erosion
or other runoff problem) and revegetated. The following criteria must be met for the entire mine site,
including any on-site disposal areas:
i) all raw materials, intermediate products, byproducts, finished products and waste products (including
acid generating material exposed by the mining activity) have been removed or permanently isolated
from Stormwater; and
ii) all soil disturbing activities at the site have been completed; and
iii) vegetation has been established with an average cover or density, over the previously disturbed area, of
a minimum of 40 percent vegetative cover or 70 percent of the vegetative cover of a similar undisturbed
site, whichever is higher (vegetative cover or density determinations need not be determined
scientifically by extensive measurement and statistical analyses; simple representative transects are
adequate.); or equivalent permanent physical erosion reduction methods have been employed.
The Division may, after consultation with the permit[ee and upon good cause being shown, revise the
vegetative cover requirement on a case-by-case basis.