# State of Mississippi

**URL:** https://aqualisco.com/compliance_item/state-of-mississippi/
**Author:** Hamsata Mazou
**Published:** August 15, 2019

> Last Updated XX/XX/XXXX Mississippi Stormwater Laws & Regulations The state operates under the Mississippi Storm Water Program, regulated through the Mississippi NPDES MS4 Permit (Permit No. MSRMS4), and the voluntary state-wide Stormwater Guidance Manuals. Guidance manuals throughout the state were...

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Last Updated XX/XX/XXXX

								
				
				
				
					
## Mississippi Stormwater Laws & Regulations

				
				
				
		
		
				
				
									The state operates under the Mississippi Storm Water Program, regulated through the Mississippi NPDES MS4 Permit (Permit No. MSRMS4), and the voluntary state-wide Stormwater Guidance Manuals. Guidance manuals throughout the state were created individually by Phase I MS4s and a group of 19 Phase II municipalities. The state has no numerical standards for post-construction, however the individual MS4s must meet a maintenance and good housekeeping requirement. The [general permit](https://www.mdeq.ms.gov/permits/) and [Mississippi Handbook for Construction Sites and Urban Areas](https://aqualisco.com/wp-content/uploads/2019/08/Mississippi-Handbook-for-Construction-Sites-and-Urban-Areas.pdf) are available online.

								
				
				
				
				
									
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									Need Help Interpreting Requirements?
					
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									View State Page

								
				
				](https://aqualisco.com/compliance_item/mississippi/)
				
				
					
				
		
					
		
				
				
					
### Resources
				
				
				
				
							
			
						
		
						
				
				
		
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### Mississippi Stormwater Management Plan
				
				
		
				
				
									View Resource

								
				
				
				
							
			
						
		
						
				
				
				](https://mdot.ms.gov/portal/stormwater)
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### Mississippi SWPPP Guidance Manual
				
				
		
				
				
									View Resource

								
				
				
				
							
			
						
		
						
				
				
				](https://assets.vbt.io/public/files/6975/MS_Resources_Construction/MS_-_DEQ_-_SWPPP_Guidance_Manual.pdf)
				
					
				
		
					
				
				
					
## Frequently Asked Questions
				
				
				
				
							
						
				
					 What regulates stormwater discharge at the state level in Mississippi? 
							
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									The state operates under the Mississippi Storm Water Program, regulated through the statewide NPDES MS4 permit, along with voluntary stormwater guidance manuals developed individually by Phase I MS4s and a group of 19 Phase II municipalities.

								
				
				
					
						
				
					 Does Mississippi have statewide numeric standards for post-construction stormwater management? 
							
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									No. The state hasn’t set numerical post-construction standards at the state level. Individual MS4s are instead required to meet a maintenance and good housekeeping requirement, which means specific design and treatment standards vary by which municipality or MS4 a property falls under.

								
				
				
					
						
				
					 Where can a Mississippi property owner find construction site stormwater requirements? 
							
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									The Mississippi Handbook for Construction Sites and Urban Areas, along with the general permit, are both published by the state and available for reference. Since the state defers post-construction specifics to local MS4s, the applicable municipal guidance manual for a given property’s jurisdiction is the more direct source for site-specific requirements.

								
				
				
					
					
						
				
					
				
		
					
				
				
									The information on this page is provided for general informational purposes only and is not legal advice. Regulations change frequently — AQUALIS makes no warranty as to the accuracy or completeness of this content, and any reliance on it is at your own risk. Consult a qualified professional or your local regulatory authority to confirm requirements applicable to your specific property.