Visit SCS Engineers’ booth and meet our professionals at the WIRMC conference, February 26-28, at the Chula Vista Resort in Wisconsin Dells.
On the agenda Thursday, February 27th
TRACK SESSION I – 10:50 – 11:50 am
Landfill Storm Water Runoff Update with Betsy Powers of SCS Engineers.
Stormwater runoff performance criteria and modeling assumptions for Wisconsin landfills have recently been evolving. A review of the permitting approach by USEPA and Wisconsin Department of Natural Resources (WDNR) has resulted in changes in policy that are intended to ensure consistency with the federal Clean Water Act and NR 151 performance standards. Betsy will discuss WDNR’s current position on the performance criteria applicable to landfills, how this changes the stormwater modeling approach and the impacts on landfill design features. WDNR waste management and stormwater program personnel are working together to ensure a standard approach to stormwater runoff design criteria and modeling assumptions for landfills. She will provide an update on this continued work, and will also touch on stormwater permitting requirements for borrow sites; WPDES Tier II Industrial Storm Water General Permitting, such as
TRACK SESSION II – 2:30-3:30 pm
Changing Old Habits: Improving Solid Waste Management in The Gambia with Chris Jimieson of SCS Engineers, John Welch of Dane County, and Kaba Bah of the UW Madison Space Science & Engineering Center.
Building a better solid waste management infrastructure is a top priority for the City of Madison’s sister city, Kanifing, in The Gambia. The Midwest Gooh Group, LLC, which was formed by 3 local Gambians who want to help their home country, received a grant from the United Nations Development Program to travel to The Gambia this summer to assess the current Bakoteh Dumpsite, perform a high-level evaluation of a new site for a potential sanitary landfill, and conduct more than 20 meetings with key stakeholders. Learn about this eye-opening experience and how the Wisconsin solid waste community is partnering with The Gambia through the Midwest Gooh Group to bring it closer to a more comprehensive solid waste management program. Attendees will see photos of solid waste management in The Gambia, understand the challenges they face, and learn about the potential solutions on the horizon.
This conference is jointly hosted by AROW, SWANA, and WCSWMA, and is celebrating its 20th year facilitating collaboration among professionals from all aspects of the solid waste and recycling industries.
It’s been 10 years since the first Research, Development, and Demonstration (RD&D) Plans were approved allowing liquids to be applied to municipal solid waste landfills in Wisconsin. What have we learned?
Under an approved RD&D Plan, landfill operators can apply liquids other than recirculated leachate to the waste at municipal solid waste landfills. The RD&D Rule was published by US EPA in 2004, and states had the option of adopting the rule and issuing RD&D approvals. Wisconsin was an early adopter, and 13 of the approximately 30 landfill sites in the US with RD&D approvals are in Wisconsin.
This presentation will look at data from the Wisconsin landfills with RD&D Plans. Each site is required to report annually on a very detailed basis. For this presentation we will zoom out and look at the data on an aggregated basis to address big-picture questions. What are the trends in volumes applied for leachate recirculation versus RD&D Liquids? How do these volumes compare with precipitation? What liquid waste streams have been accepted and how have they been applied? How has RD&D liquid application affected landfill gas generation?
We will also provide an update on the regulatory status of the RD&D rule. On May 10, 2016, a final federal rule was published that revised the maximum permit term from 12 years to 21 years; however, WDNR will have to adopt this change in order for it to be available to Wisconsin landfills.