Risk Assessment of Disposal Options for Street Debris and Detention Basin Sediments
Consulting Partners:
Matt Looft
Kendall McPeters
Danielle Roy
Sarah Ullman
Lara Vowles
Client Contact:
Tim Grover, Superintendent Water Pollution Control, City of Winooski, Vermont.
Problem Statement:
The City of Winooski would like to find alternative disposal options for street sweeping debris and detention basin sediments that are currently landfill disposed.
Purpose Statement:
The project will include a review of current disposal options for non-toxic street sweeping debris and catchment basin sediments as practiced throughout the Northeast. The City will be provided with alternative methods for waste disposal with special consideration for beneficial reuse and of environmental integrity. A simple cost benefit analysis will be performed to compare the relative efficiency of each disposal plan.This project will focus on therisk characterization portion of the Environmental Risk Analysis framework.
Justification:
Current street sweeping debris and catchment basin material disposal practices within the City of Winooski are limited to collection on town property with eventual removal to a secure landfill. The cost for removal and landfill dumping is relatively expensive and possibly an unneeded cost. This sediment-based material could potentially be used in local construction projects as fill. The benefit to local businesses would be an inexpensive source of clean fill for construction purposes. Regional reuse of the sediments could be implemented at a reduced cost to the City, or even become a revenue generator. The regional supply of fill would reduce transportation costs for both disposal and acquisition. With the success of a local City-based system, the new disposal regime could serve as a model for a regional disposal center. This regional collaboration could lead to increased awareness and public support for reevaluation of current street debris and catchment basin policy.
Preliminary Sources:
Massachusetts Beneficial Use Determination sheet
New York Beneficial Use Determination legislation
The Massachusetts Street Sweep Reuse Plan Final policy
Laboratory Report for South Burlington Street Sweeping Debris
Sampling data
Proposed Effort:
- Correspondence with City of Winooski.
Contact with Tim Grover, Superintendent Water Pollution Control
Determine extent of current practices
- Amount of waste collected
- Route/Methods of collection
- Timeframe for collection
- Current disposal practices
- Current costs associated with removal and disposal
Discuss laboratory results of street debris sediment analysis
- What is street debris composition
- Reuse feasibility if toxins are present in debris
- Review current waste sediment disposal practices
Review disposal practices in local area
Review disposal practices at regional and state levels
Determine amounts, routes, and waste constituents (i.e. with testing parameters and components)
Review regulations and policies surrounding Beneficial Use Determination (BUD) taking into consideration and limitations posed by debris composition
- Evaluate and interpret the implications of acquired information
Create list of options
Rank feasibility
Cost benefit analysis
Associated time frames
Applicability of scale
Applicability to region
Assess problems/constraints in design work
- Present a list of feasible options
Create hard copy report
Create visual presentation
Present ideas to stakeholders and colleagues
Effort Assignment:
Matt Looft is the contact liaison and group facilitator and currently is coordinating planning efforts with Tim Grover and the City of Winooski concerning street cleaning debris and catchment basin debris. Lara Vowles is researching regional and state debris practices to be used as reference for possible Winooski debris disposal strategies. Also, Sarah Ullman is conducting a review of local current debris disposal practices and possible cooperation for a regional collection center. Kendall Clare McPeters is acting as the ‘group chemist,’ investigating and evaluating any relevant toxicant levels and comparing toxicity data to that of state and federal regulation. Danielle Roy is assessing possible beneficial uses for street cleaning debris and catchment basin debris that would be a more efficient use of Winooski’s resources.
Time Line:
Thursday, February 17th, 2005
Initial contact with Tim Grover, Water Pollution Control, City of Winooski
Monday, March 14th, 2005
Meeting with Tim Grover concerning current debris disposal practices, desired goals and group involvement
Thursday, March 17th, 2005
Request for proposal for Risk Assessment of Disposal Options for Street Debris and Detention Basin Sediments
Monday, April 4th, 2005
Winooski street cleaning debris sediments return from Endyne testing lab
Research and preliminary options compiled for review
Thursday, April 7th, 2005
Mid course project review
Thursday, April 21st, 2005
Formulate first draft of written project disposal options
Tuesday, May 3rd, 2005
Final project report
Friday, May 6th, 2005
Final project presentation
Monday, May 9th, 2005
Final project report delivered to City of Winooski and any other interested parties