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WYPDES Storm |
Bill DiRienzo, Program Manager 307-777-7081 bdirie@wyo.gov |
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Barb Sahl, Program Coordinator |
Brian Lovett, Inspection/Compliance Supervisor 307-777-5630 blovet@wyo.gov |
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John Gorman, |
Storm Water Quick Links
Large construction permit
- surface disturbance of 5 acres or more
Small construction permit
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disturbance of at least 1 acre, but less
Mineral mining permit
Industrial permit
Municipal separate storm sewer systems (MS4s) permit
Storm water guidance documents
Other storm water links
Wyoming Water Quality Rules and Regulations
 Active
Storm Water Authorizations
(Excel files) |
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Authorizations Under the Large Construction General Permit (5 or more acres) - updated bimonthly (last updated: 12/30/09) |
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Authorizations Under the Industrial General Permit - updated quarterly (last updated: 12/30/09) |
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Authorizations Under the Mineral Mining General Permit - updated quarterly (last updated: 12/30/09) |
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Authorizations Under the Municipal Separate Storm Sewer System (MS4) Permit - updated as needed (last updated 12/30/09) |
| If issues are noted regarding the posted data, please contact Barb Sahl, 307-777-7570 or John Gorman, 307-777-5622. |
Storm Water Awards Program and Nomination Form
Does your company have a construction, industrial or mining site with an excellent storm water quality management program? Or do you know of such a site? If so, consider nominating that site for the Wyoming Department of Environmental Quality’s (WDEQ) Storm Water Award. Effective management of storm water runoff from construction, industrial or mining activities protects water quality in your community from pollutants that could leave sites in storm water runoff.
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he WDEQ is accepting nominations for the Storm Water Awards Program. This award recognizes organizations or individuals that implement effective water quality best management practices (BMPs) that demonstrate innovation, good planning, excellent implementation and maintenance and flexibility to changing site conditions. Upon nomination, WDEQ staff with experience in storm water quality management will arrange a site visit to evaluate on-the-ground BMPs along with recordkeeping and tracking of BMP maintenance. Awards are given periodically.Any site may be nominated that falls under construction, industrial or mining activities. A site does not have to have a storm water permit with the WDEQ to be considered for an award.
If you have any questions regarding qualifications for this program please contact Craig Toal at ctoal@wyo.gov.
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 moreConstruction 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)
Documents (last updated): Formats
Construction General Permit, effective September 1, 2006. (including SWPPP guidelines in Part 7) (8/06)
SWPPP Checklist. Use this optional checklist to navigate through the LCGP's SWPPP requirements. (10/06)
Response to comments document (8/06) This document summarizes the comments received on the draft large construction general permit and provides the WDEQ response to each. (8/06)
Permit Fact Sheet (8/06)
Notice of Intent (NOI) to request coverage under the general construction storm water permit(9/04)
This NOI is for construction projects that disturb 5 or more acres only. Scroll farther down this page for mineral mining or industrial storm water permits and NOIs. (8/06)
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)
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. Builders covered under the construction general permit are now required to provide this brochure to new homeowners when they purchase a new home on a lot that is not fully landscaped. Homeowners are not regulated under the storm water permit, but should be aware of the issues that stem from erosion and what some simple preventive measures are. (9/06)
"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)
Construction 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 construction 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)
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 Greg Davis at EPA Region 8 (303-312-6314).
Small Construction General Permit (WYR10-A000)
Land disturbance of at least 1 acre, but less than 5 acresSmall 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)
Construction 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 construction 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)
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 |
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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 any dewatering discharges from small construction sites (that permit will not be modified until 2008) 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.
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) |
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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. |
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. (8/07)
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)
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.(10/07)
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)
- o 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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Municipal Separate Storm Sewer Systems (MS4s)
Recent federal regulations require that storm water discharges from certain small MS4s be covered under a storm water permit. At this time in Wyoming municipal, county, and other publicly-operated MS4s within the state's two Census Bureau-defined urbanized areas (see maps below) will be required to be covered under a general storm water permit.
The Wyoming MS4 permit was issued 2/1/05.
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MS4 Permit (11/08)
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Notice of Intent (NOI) to request coverage under the general permit (pdf) (Word Perfect) (2/05)
Response to Comments Received (11/08)
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Request
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The City of Casper, Casper College and the Wyoming Department of Transportation have each applied for and been issued coverage under the Wyoming Permit that covers discharges of storm water from certain municipal storm sewer systems. Per a decision of the Ninth Circuit Court of Appeals, the Wyoming Department of Environmental Quality is required to seek public comment on each organization’s application and Storm Water Management Program (SWMP). Please see the linked public notice for more information.
Below are links to the public notice, applications,
proposed SWMPs and related documentation.
Questions specific to the SWMP should be directed
to the organization requesting coverage.
Questions regarding the permit, state regulations
or the comment process should be directed to Barb Sahl
at 307-777-7570 or
bsahl@wyo.gov.
Comments are due to the WDEQ by 5:00 p.m.
February 13, 2009.
Public Notice City of Casper Notice of Intent (NOI) and Storm Water Management Program (SWMP) (the NOI and SWMP combined in one document) Casper College NOI SWMP Wyoming Department of Transportation - District 2 NOI SWMP Other relevant links: Chapter 2 of the Wyoming Water Quality Rules and Regulations MS4 Permit Casper Urbanized Area Map |
Storm Water Consultants List. The linked list represents consultants who have indicated that they are are available for hire by the public to provide services relating to compliance with the Wyoming Large and Small Construction General Permits and who have requested to be on this list. The Wyoming Department of Environmental Quality does not certify or recommend any consultants. (List updated to January 2010)