Jefferson Parish Municipal Separate Storm Sewer (MS4) Program Management


Jefferson Parish Department of Environmental Affairs

End Date:

Ongoing-July 2020


Program Management

Bonnabel Drainage Pump Station

Bonnabel Drainage Pump Station

Harvey Drainage Pump Station

Harvey Drainage Pump Station

Jefferson Parish Drainage Pump Station

Jefferson Parish Drainage Pump Station

Digital Engineering (DE) is the Jefferson Parish MS4 Program Manager. DE’s original contract was for a three year period but due to our continued responsiveness we have received two additional one year contract extensions through July 2020. As Program Manager we make sure that all stormwater pollution prevention plans, spill control and response plans and annual reports are completed as per the Jefferson Parish LPDES MS4 Permit guidelines and that all reports and plans are submitted on time to remain in compliance with Jefferson Parish’s LDEQ Stormwater Permit. Responsibilities as Program Manager include the following:

Permit Renewal, Annual Report, 303(d), Water Bodies Sampling Plan
As part of the contract with Jefferson Parish for MS4 Program Management Services, DE prepared the MS4 Permit Renewal Application in June 2016. The permit application was prepared in accordance with Louisiana Administrative Code Title 33, Part IX (LAC 33:IX.2511).

In addition to preparing the permit application, DE organized and participated in meetings with LDEQ to discuss the terms of the permit; organized and facilitated meetings with co-permittees to coordinate the desired permit terms of Jefferson Parish and the co-permittees, and prepared and submitted comments on the permit language on behalf of Jefferson Parish. The LPDES MS4 Discharge Permit was issued to Jefferson Parish and its co-permittees in November 2017 with an effective date of December 1, 2017.

DE has also prepared the 2015, 2016, and 2017 MS4 Annual Reports for Jefferson Parish and is currently preparing the 2018 MS4 Annual Report for Jefferson Parish.

As part of this contract, DE also completed a 303(d) Water Bodies Sampling Plan in order for Jefferson Parish to maintain compliance with the 303(d)/TMDL Monitoring Section of its 2017 LPDES MS4 Permit. During the permit renewal process, LDEQ identified four 303(d) water bodies with impairments identified as caused by the MS4 within Jefferson Parish. The impaired water bodies on the West Bank, namely the Sauls, Avondale, and Main Canals are identified by LDEQ as being impaired by Chlorides, Sulfates, and Total Dissolved Solids as a result of force pumped drainage. The impaired water bodies on the East Bank, namely the Lake Pontchartrain Drainage Canals in Jefferson and Orleans Parishes on the East Bank, are identified by LDEQ as being impaired by Dissolved Oxygen as a result of Sanitary Sewer Overflows.

To complete this task, DE prepared a sampling plan that includes Project Management, Measurement and Data Acquisition, Data Validation and Usability, and Mapping for use by Jefferson Parish Environmental Affairs personnel to comply with the sampling requirements of the permit. Working with Jefferson Parish Environmental Affairs staff, sampling sites were selected which provide representative samples of the impaired canals and also allow Parish staff to gather samples safely.


As part of a contract with Jefferson Parish for MS4 Program Management Services, DE has completed a total of 35 Spill Prevention, Control, and Countermeasure (SPCC) Plans and 32 Storm Water Pollution Prevention Plans (SWPPP) for municipal facilities such as Wastewater Treatment Plants, Water Treatment Plants, Drainage Pump Stations, Landfills, and Emergency Operations Buildings.

All SPCCs are prepared to be in compliance with US EPA 40 CFR Part 112 and all SWPPPs are prepared to be in compliance with the appropriate LDEQ LPDES Permit.