Watershed Implementation Plans (WIPs)

WIPs are developed to identify water resource issues and concerns and implement potential solutions to reduce and/or prevent NPS pollution and restore designated uses in a watershed. United States Environmental Protection Agency (USEPA) issued a revised guidance to States in 2013 of nine (9) key elements of an acceptable WIP, which is required for utilization of project funds provided to states through Section 319(h) of the Clean Water Act (CWA). These nine (9) key elements include:
1. Identification of causes of impairment and pollutant sources that need to be controlled in the watershed to achieve the needed load reductions, improve water quality, and restore designated uses;

2. Estimation of the needed load reductions expected from best management practices (BMPs) implemented;

3. Description of the nonpoint source (NPS) BMPs to achieve load reductions;

4. Estimation of the amounts of technical and financial assistance needed to implement the WIP;

5. Description of the education and outreach activities that will be used to implement the WIP;

6. Inclusion of a schedule for implementing NPS management measures identified in the WIP;

7. Description of interim, measurable milestones for determining whether NPS management measures are being implemented;

8. Inclusion of a set of criteria that can be utilized to determine whether NPS load reductions are being achieved and progress is being made toward attaining water quality standards; and

9. Description of the monitoring program that will be utilized to evaluate the effectiveness of the implementation efforts.


The State of Mississippi has developed many WIPs to reduce NPS pollution and to improve water quality/quantity, many of which are listed below:

Basin Group I (Tennessee River, Tombigbee River, and North Independent Streams)

Basin Group II (Yazoo River) Basin Group III (Pearl River, Big Black River, and South Independent Streams) Basin Group IV (Pascagoula River, Coastal Streams, and Lower Pearl River) For additional information concerning these WIPs, please contact MDEQ Basin Management Branch, at (601) 961-5171.