Small Construction General Permit   (WYR10-A000)
Land disturbance of at least 1 acre, but less than 5 acres

Small construction activities, those disturbing at least one acre, but less than five acres, now require coverage under a small construction general permit.  The WDEQ has issued a general permit for small construction activities.
List of Consultants (2/08)

Documents (last updated)	Format
Small construction general permit (2/08) This general permit became effective 3/1/08 and expires 3/15/11.  (2/08)
SWPPP Checklist.  Use this optional checklist to navigate through the SCGP's SWPPP requirements. (3/08)
Erosivity Waiver Certification - Parts A and B Note that for the 2008-2011 small construction general permit the erosivity waiver forms are separate from the general permit.  The erosivity waiver is only available for certain construction projects that will disturb between 1 and 5 acres.(2/08)
Fact Sheet for the 2008 general permit (2/08)
EPA Fact Sheet 3.1 -- Construction Rainfall Erosivity Waiver.  Use this fact sheet if you are applying for the Erosivity Waiver in Appendix B of the small construction general permit.  NOTE:  Wyoming counties on the Isoerodent Map of the Western US (Figure 3) in fact sheet 3.1 do not show up well.  This version of the isoerodent map, from a USDA publication (RUSLE, chpt. 2), shows the counties a little better.  If you're having trouble locating your project you may want to try using this map. (1/04)
"Does Your Construction Site Need a Permit?"  A short guide to the requirements of the storm water program for anyone operating a construction activity.  (12/06)

Please note:  Unlike other Wyoming WYPDES storm water permits, the small construction general permit does not require (or even have) a Notice of Intent or application.  A construction site is considered authorized under the permit when all applicable provisions of the permit (for example: develop and implement a SWPPP and conduct and document required periodic inspections of BMPs) are completed and implemented by the construction site operator.  In other respects this permit is very similar to the permit for large construction activities.

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Non-storm water permits needed for some construction projects. This is only a list of more commonly needed non-storm water permits from the Water Quality Division.  Contact the Water Quality Division if you're not sure about what permits may be needed. Other local, state or federal permits may be required.  Be sure to verify whether or not other permits are needed.

Construction Site Dewatering Please note that both the WYPDES large and small construction storm water permits now cover discharges from construction dewatering if those discharges are accumulated storm water with only minor amounts of groundwater (see Part 8.8 of the large and small construction permits for more details).  Discharges that have a significant groundwater component and that are pumped or siphoned to a storm drain or may reach a surface water of the state, directly or by overland flow, are considered a process wastewater and must be covered under a separate WYPDES permit for wastewater discharges. Most short-term construction dewatering discharges to storm drains or surface waters may be covered under a general permit specifically written for short-term, temporary discharges (scroll down to "General Permits and NOIs").  Contact Marcia Porter, 307-777-6081, for more information on permitting temporary discharges. If you will be "land applying" construction site water to the land surface so that it will not run off to surface waters, contact your local District Engineer with the Water and Wastewater group to determine if a "Land Application" permit is required. Both a WYPDES Temporary Discharge permit and a Land Application permit will take some time to obtain.  If you think you may need to dewater your site consider getting one of these permits early to avoid delays in your project. (8/05) (revised 12/06)

 

Temporary Turbidity Waivers May be required for certain construction activities conducted in live waters The Administrator of the Water Quality Division may authorize temporary increases in turbidity above the numeric criteria (described in Section 23, Chapter 1 of the Wyoming Water Quality Rules and Regulations) for certain short-term, construction-related activities. If a project requires working in live waters and activities may cause an excursion above allowable turbidity levels, your project may qualify for a turbidity waiver.  This waiver is time-limited and project-specific.  To apply for a waiver use the application linked below.  Contact Jeff Clark, 307-777-6891, for more information. Projects that cause excursions above the numeric criteria and that have not been authorized by a waiver are subject to a possible enforcement action. Directions to apply Application for a turbidity waiver

 

Mineral Mining and Associated Activities (WYR32-0000)

Mineral mining and processing (SIC 14) and associated activities, such as mobile hot plants, concrete batch plants and stockpiles are covered by the mineral mining storm water permit. Non-mineral mining activities and fuels, such as coal, should use the general industrial storm water permit.

Please note that the general mineral mining storm water permit is not available to facilities where storm water runoff has the potential to discharge to class 1 waters. Facilities may apply for coverage under an individual storm water permit. Contact Barb Sahl at 307-777-7570 or John Gorman at 307-777-5622 for more information

Documents (last updated):	Formats
Mineral Mining General Permit (including SWPPP guidelines in Part 6) (8/07)
Fact Sheet (8/07)
Wyoming class 1 waters
Notice of Intent (NOI) to request coverage under the mineral mining general storm water permit. (revised 8/10)
Notice of Transfer and Acceptance (NOTA) to transfer permit coverage to a new operator. (8/07)
Notice of Termination (NOT) to discontinue coverage under the general permit. (8/07)
Mineral Mining Storm Water Inspection Report.  This is the inspection form used by DEQ WYPDES inspectors for our compliance and complaint inspections.  This form can be used by permittees for "self audits" on their mine sites.  It is not intended to replace the form you use on your site, but to help you look for the more common issues that a DEQ storm water inspector will be looking for.  (revised 9/08)

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General Industrial Storm Water Permit (WYR00-0000)

Certain industrial facilities are required to seek coverage under the general industrial storm water permit. Facilities most commonly covered in Wyoming are most mines (mineral mines are covered under the mineral mining permit, see above), facilities that produce cement products, many wood product facilities, airports, junk yards, and scrap recycling facilities. Coverage is based on the facility's Standard Industrial Classification (SIC) code.

Please note that the general industrial storm water permit is not available to facilities where storm water runoff has the potential to discharge to class 1 waters. Facilities may apply for coverage under an individual storm water permit. Contact Barb Sahl at 307-777-7570 or John Gorman at 307-777-5622 for more information.

Documents (last updated):	Formats
Industrial General Permit (including SWPPP guidelines in Part 7) (10/07)
Fact Sheet (10/07)
Response to Comments received (10/07)
Table of regulated SICs
Wyoming class 1 waters
Notice of Intent (NOI) to request coverage under the general industrial storm water permit.(revised 8/10)
Notice of Transfer and Acceptance (NOTA) to transfer permit coverage to a new operator. (10/07)
Notice of Termination (NOT) to discontinue coverage under the general permit. (10/07)
Industrial Storm Water Inspection Report.  This is the inspection form used by DEQ WYPDES inspectors for our compliance and complaint inspections.  This form can be used by permittees for "self audits" on their industrial sites.  It is not intended to replace the form you use on your site, but to help you look for the more common issues that a DEQ storm water inspector will be looking for.  (revised 9/08)
No Exposure Certification.  The No Exposure Certification may be used by any industrial facility, regulated under the storm water program, where industrial materials and activities are sheltered from storm water.  Submission of a No Exposure Certification constitutes notice to WDEQ that the facility does not require coverage under the industrial storm water general permit.  The certification is renewable every five years and is verifiable by WDEQ. No Exposure Certification guidance and certification. (9/05) No Exposure Change of Status form.  Use this form to assign the No Exposure Certification to a new operator, indicate a change in business activity on the site or provide information on the closure of the site. 5/09

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