A stormwater management concept is a statement or drawing, or both, describing the manner in which stormwater runoff from a proposed development will be controlled to minimize damage to neighboring properties and receiving streams and to also prevent the discharge of pollutants into surface waters.
WHEN DO I NEED A SM CONCEPT APPROVAL?
A Stormwater Management Concept approval is required prior to preliminary subdivision plan approval by the M-NCPPC, and for most other development activity prior to the application for a Sediment Control Permit.
ARE ANY DEVELOPMENT ACTIVITIES EXEMPT FROM CONCEPT APPROVAL?
Please note that a separate stormwater management concept is NOT required for construction on existing single family lots where the use is single family residential. In such cases, stormwater management must be shown on the sediment control plan at the time of detailed plan submission. If the property is going through the subdivision process, or if the proposed use is something other than single family residential, a separate stormwater management concept is required.
The goal of stormwater management is to mitigate the effects of development on the receiving stream system. Stormwater management concepts must show how acceptable mitigation is achieved by implementing practices in accordance with the 2000 Maryland Department of the Environment's Stormwater Design Manual as amended and withMontgomeryCountydesign requirements based on Chapter 19 of the Montgomery County Code.
DPS Water Resources staff will review the stormwater management concept to ensure conformance with these requirements and with applicable Executive Regulation.
All projects must use Environmentally Sensitive Design (ESD) credits to the maximum extent practicable (MEP) to provide the full stormwater management requirement calculated for the project. ESD requirements shall be calculated per MontgomeryCounty Water Resources Technical Policy WRTP-5.
In extreme cases the applicant may request a waiver of providing on-site stormwater management. When granted by the Department of Permitting Services an appropriate stormwater management contribution will be required in accordance with Executive Regulation 4-90AM.
Submit a completed SM Concept Application, a copy of the grading or site plan (along with applicable supporting information), and the appropriate application fee. Please refer to the second page of the SM Concept Application for submittal requirements.
CONDITIONS OF APPROVAL
A SM Concept is approved when an approval letter has been issued by the Department of Permitting Services.
In accordance with Chapter 19 of the Montgomery County Code, DPS must route all new stormwater concept application packages to the Montgomery County Department of Transportation, the Montgomery County Department of Environmental Protection, and the MNCPPC prior to taking action on the application. DPS allows these agencies three weeks in which to submit comment. During this period, no action will be taken on the stormwater concept review package by DPS. This mandatory agency comment period applies only to the initial stormwater concept submission, and does not apply to subsequent submissions and revisions.
1. For stormwater management concept plans - $2,765
2. All other stormwater management concept plans or SPA Water Quality Inventory - $2765
3. Fees for revisions to previously approved stormwater management concept plans or SPA - $1385
Filing fees and permit fees are based on fees in effect on the date the application was filed. All other fees are based on fees in effect at the time the service is requested (revision fee, extension fee, etc.).
The approval is valid for the life of the associated preliminary plan approved by MNCPPC or the term of the applicable law and Executive Regulation at the time of approval. Actual processing time may vary according to workload and/or complexity of the project. Any divergence from the information provided to this office; or additional information received during the development process; or a change in an applicable Executive Regulation may constitute grounds to rescind or amend any approval actions taken, and to reevaluate the site for additional or amended stormwater management requirements. If there are subsequent additions or modifications to the development, a separate concept request shall be required.
|Sediment Control Permit Application||Sediment Control Permit Application|
|Stormwater Concept Application||Stormwater Concept Application|
|Fees and Taxes|
|Fees for Sediment Control Permit (See Land Development Method 3)||Executive Regulation 8-15|
|Automation Enhancement Fee Regulation||Executive Regulation 15-16|
|Credit Card Authorization Form||Credit Card Authorization Form|
|General Bond Information||Bond Information|
|Performance Bond||Performance Bond Sample|
|Letter of Credit||Letter of Credit Sample|
|Codes, Standards, Executive Regulations|
|Montgomery County Code - Chapter 19||Montgomery County Code|
|Guidelines, Memorandum of Understandings, Interpretations|
|Water Resource Section Standards, Guidelines and Helpful Information||DPS Water Resources Section Guidelines|
|Stormwater Management Concept Information||Stormwater Concept|
|Frequently Asked Questions|
|311 Web Portal: Enter key word "Sediment Control"||http://www3.montgomerycountymd.gov/311|
|Online Permitting Status Information and Inspections|
|Online Permit Status||Search DPS|
|Applicants with Contact ID Sign In||Sign In|
|Call for More Information|
|In Montgomery County||311|
|Outside of Montgomery County||240-777-0311|
|Other Agencies to Contact|
|Other Agencies and Utilities to Contact||Allegheny Power|
|Baltimore Gas & Electric Co. (BG&E)|
|Board of Appeals|
|Maryland Department of the Environment|
|Montgomery County Department of Environmental Protection (MCDEP)|
|MNCPPC: MC Atlas|
|Montgomery Soil Conservation District|
|Potomac Electric Power Company (PEPCO)|
|Washington Gas Light Co.|