Storm Water Permits and Forms

Annual fee requirement for WYPDES permits and authorizations.  Individual permits and general permit authorizations are subject to an annual $100 fee for as long as the permit or authorization is active.  There is no need to pay the fee with your application.  All permit and authorization fees are invoiced after December 31st for the previous calendar year

Large Construction General Permit (WYR10-0000)
Land disturbance of 5 acres or more

Construction projects that disturb five or more acres must be covered under the general construction permit. The five acres of disturbance does not have to be contiguous.
List of Consultants (2/08)

Wyoming Sage-Grouse Management:  Pursuant to the requirements of the Governor's Executive Order 2011-5, Greater Sage-Grouse Core Area Protection, the Wyoming Department of Environmental Quality (WDEQ) is working with the Wyoming Game and Fish Department (WGFD) to minimize the impact of development on the Greater Sage-Grouse population in Wyoming. To that end, operators of large construction projects must determine if any part of the project falls within a Greater Sage-Grouse Core Area (SGCA) before applying for coverage under the Large Construction General Permit (LCGP).  If any part of your project falls within a SGCA, the first point of contact for addressing sage-grouse issues is the WGFD.  Coordinate with the WGFD and obtain a letter confirming consistency with the Executive Order prior to applying for coverage under the LCGP. (8/11) Map of Greater Sage-Grouse Core Areas (SGCAs).  This is the same map that is found on the Wyoming Game and Fish Department's Sagebrush/Sage Grouse Management webpage.  The map has a "zoom" tool that you can use to zoom to the township and range or to the relevant USGS quadrangle map where your project is located. (5/12) Additional information can be found on the Wyoming Game and Fish Department's Sage-Grouse Management webpage.

 

Documents (last updated):	Formats
Construction General Permit, effective May 9, 2011. (including SWPPP guidelines in Part 8) (5/11)
SWPPP Template. This SWPPP template is a "fillable" PDF form.  You may complete it online and print it for signature.  Use of this template is optional and it is provided only for the convenience of the user.  It is an applicant's responsibility to ensure that their SWPPP meets the requirements of the LCGP.  If any glitches or issues are found with this form, please contact Barb Sahl or John Gorman. (5/11)
Response to comments document.  This document summarizes the comments received on the draft large construction general permit and provides the WDEQ response to each. (5/11)
Permit Fact Sheet (5/11)
Notice of Intent (NOI) to request coverage under the general construction storm water permit. (5/11) Occasionally we have gotten reports of a PDF/A error message when trying to use this form with Adobe Pro or Adobe Standard.  The linked work around has been provided by NOI users. The NOI has been revised to comply with the Governor's Executive Order 2011-5 regarding the protection of the Greater Sage-Grouse.  More information is provided above. (5/2/13) This new NOI replaces all previous NOIs (previous versions will no longer be accepted).  The NOI is in Microsoft Word.  A fillable PDF is forthcoming.  At this time the WDEQ must have an original signature so NOIs must be mailed or hand delivered. NOTE:  Please be sure to complete item 1 of the NOI regarding the status of your project with respect to Sage Grouse Core Areas.
Notice of Transfer and Acceptance (NOTA) to transfer permit coverage to a new operator. (8/06)
Notice of Termination (NOT) to discontinue coverage under the general permit. The construction site must be "finally stabilized" as defined in Part 5 of the permit. (8/06)
Interactive map showing water bodies in Wyoming that are listed on the state's 303(d) list as impaired due to, or that have an approved Total Maximum Daily Load (TMDL) for, sediment, suspended solids or turbidity.  Please see parts 3.5.11 and 8.2.2.8 in the permit for additional information.  [Note that this map does not include impairment or TMDL information for areas of the Wind River Indian Reservation where the state does not have jurisdiction and EPA is the permitting authority.]  (5/22/13) Also shown for convenience are the state's class 1 waters as defined in Chapter 1 of the Wyoming Water Quality Rules and Regulations. This map works best with a high-speed internet connection.  If you have difficulty with the map, please contact Barb Sahl or John Gorman.
2-year/24-hour storm event isopluvial map of Wyoming.  Storm water BMPs are required to withstand and function in storm events up to a 2-yr/24-hr storm.  This map provides storm depths in tenths of an inch.  Equivalent data from local municipalities may also be used. (9/06)
New Homeowner Guidance./  Guidance for home buyers of new construction.  Provides guidance to erosion and sedimentation from unlandscaped lots and basic erosion and sediment controls.
"Does Your Construction Site Need a Permit?Under revision (5/11)
Wyoming map showing:     *  Surface waters (listed on the state's 303(d) list) as impaired due to sediment, total suspended solids or turbidity     *  Surface waters with an approved TMDL for sediment, total suspended solids or turbidity     *  Class 1 waters This map is a self-extracting zipped PDF file.  Click on the icon and follow the directions to save the map to your computer.  The zipped map is still over 9 MB.  If you have difficulty downloading the map, please contact the storm water program. The Division is developing an interactive GIS map that will replace the PDF map.  Please check back periodically for that updated map. (6/11)

 

How does enactment of the federal Energy Policy Act of 2005 (the “Energy Bill”) affect storm water permitting for oil and gas-related construction activities in Wyoming? In Wyoming, where the Department of Environmental Quality is the permitting authority, Chapter 2, Section 6 of the Wyoming Water Quality Rules and Regulations requires permit coverage for storm water discharges from all construction activities disturbing one or more acres.  The type of facility being constructed does not change the requirement to obtain permit coverage.  As such, construction of oil and gas facilities still requires storm water permit coverage in the state of Wyoming. However, passage of the Energy Bill does affect storm water permitting for the oil and gas industry in areas of the Wind River Indian Reservation where the state does not have jurisdiction and EPA is the permitting authority.  For more information contact Amy Clark at EPA Region 8 (303-312-6314).

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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 7.13 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