PERMFILE71382

• Permit No: M2007003
• IBM Index Class Name: Permit File
• Doc Date: 3/14/2007
• Doc Name: Additional Items for Adequacy Review
• From: AG Engineering
• To: DRMS
• Media Type: D
• Archive: No

Page 3
Permit No. COG-500000
PART 1
A. COVERAGE UNDER THIS PERMIT
Industries Covered
Under this general permit, the following types of facilities may be granted authorization to discharge treated process-grnerated
wastewaters and/or stormwater runoff into waters of the state of Colorado:
Facilities engaged in the mining and processing of sand and gravel (including rock or stone used as aggregate), and mining and
quarrying of other nonmetallic minerals (except fuels or graphite), as described by the Standard industrial Classification (SIC) Code
14, and asphalt and concrete batch plants located at facilities covered under this permit.
a. Stormwater vs. Process water: When stotmwater mixes with process water, the process water ]imitations (Part LB of the
permit) apply to the discharge of that mixed water. Process waters from these facilities are subject to effluent limitations
under 40 CFR 436.
b. Process Water: For purposes of this permit, process generated wastewaters include:
1) ProduM wash waters;
2} Maintenance/equipmeni wash waters;
3) Transport waters;
4) Scrubber waters (crushers or classifiers);
5) Mine dewatering (groundwater and/or runoff);
6) Other process water as determined by the permit issuing authority,
7) Stormwater runoff from mine or processing areas; and
8) Stortnwater runoff, which mixes with process, generated wastewater before sampling.
Stormwattt: The stormwater section (Part I.C of the permit] is intended to cover stormwattt runoff from [hose portions ofa
nonmetallic minerals production operation that are not subjett to effluent limitations under 40 CFR 436.
2. Dred¢e and Fill Operations
This permit does not constitute authorization under 33 U.S.C. 1344 (Section 404 of the Clean Water Act) of any stream dredging or
filling operations.
3. Aonlication Reouirements
In order to be considered eligible for authorization to discharge under theterrnsand conditions ofthis permit, the owner, operator,
and/or authorized agent of any facility desiring to discharge must submit, by letter or hand delivery, two copies of the discharge
application form, available from the Water Quality Control Division (the "Division"), which generally requires the following
information:
a. Name, address, and descriptive Location of the facility;
b. Name of principal in charge of operation of the facility;
c. Name of water receiving the discharge;
d. Description of the type of activity resulting in the dixharge including the anticipaud duration of activity and/or the
discharge, anticipated volume, and rate of discharge, and the source of water which is to be discharged;
e. Description of any waste water treatment system and rccycle/reuse utilized;
f. A map or schematic diagram showing the general area and/or routing of the activity;
g. Analysis of the process water to be discharged;
h. Description of storrnwater discharges, including drainage area;
i. Description of present and proposed best management practices at site, including map;
j. Any existing water quality data on stormwater discharges; and
k. Certification as to the preparation of a Stomtwattt Management Plan
4. Aonlication Due Dales
At (east thirty days before the anticipated date of discharge, the owner (or operator if the owner dots not operete the facility) ofthe
facility shall submit an application as provided by the Division.