PERMFILE122659

• Permit No: M2003091
• IBM Index Class Name: Permit File
• Doc Date: 8/25/2003
• Doc Name: General Permit Certification
• From: CDPS
• To: LaFarge West Inc
• Media Type: D
• Archive: No

Pam ~
Pcrmit Nn. COG-500000
PARTI
A. COVER4GE UNDER THIS PERMIT
1. Industries Covered
Under this general permit, the following types of facilities may be granted authorization to discharge treated process-generated
wastewaters and/or stormw~ater 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 notunetallic 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. Stomtwater vs. Process water: When stotmwater mixes with process water, the process water limitations (Part I.B of the
permit) apply to the discharge of that mixed water. Process waters from these facilities aze subject to effluent limitations
under 40 CFR 436.
b. Process Water: For purposes of this pemtit, process generated wastewaters include:
1) Product wash waters;
2) Maintenancelequipment wash watcrs;
3) Transport waters;
4) Scrubber waters (crushers or classifiers);
5) Mine dewatezing (groundwater and/or runofl);
6) Other process water as determined by the permit issuing authority;
7) Stormwater runoff' from mine or processing azeas; and
8) Stormwatet runoff, which mixes with process, generated wastewater before sampling.
c. Stotmwater: The stormwater section (Part I,C of the permit) is intended to cover stotmwater runoff from those portions of
nonmetallic minerals production operation that aze not subject to effluent limitations under 40 CFR 436.
2. Dredee and Fill Operations
This permit does not constitute authorization under 33 U.S.C.1344 (Section 404 ofthe Clean Water Act) of any streamdredging
filling operations.
3. Anolication Recuiremenrs
In order to be considered eligrble for authorization to discharge under the terms and conditions of this permit, the owner, operas
and/or authorized agent of any facility desiring to dischazge must submit, by letter or hand delivery, two copies of the discbar
application form, available from the Water Quality Control Division {the "Division'), which generally requires the follow
information:
a. Name, address, and descriptive location of the faci]ty;
b. Name of principal in chazge of operation of the facility;
c. Natne of water receiving the discharge;
d. Description of the type of activity resulting in the discharge including the anticipated duration of activity and/or
discharge, anticipated volume, and rate of discharge, and the sourt:e of water which is to be discharged;
e. Description of any waste water treatment system and recycle/reuse udiized;
f. A map or schematic diagram showing the general azea and/or routing of the activity;
g. Analysis of the process water to be discharged;
h. Description of stormwater discharges, including drainage azea;
i. Description ofpresent and proposed best management practices at site, including map;
j. Any existing waxer quality data on stormwater dischazges; and
k Cemfication as to the preparation of a Stormwater Management Plan.
4. A~olication Due Dates
At least thirty days before the anticipated date of dischage, the owner (or operator if the owner does not operate the facility)
facility shall submit an application as provided by the Division.