MS4 Consultation Services

The vendor is required to provide municipal separate storm sewer system (ms4) consultation permit.
1. Ms4 inventory and data management
•    Determine system vulnerability factors (SVFs) for all outfalls covered by the town’s ms4 permit. 
•    Identify which outfalls require wet weather outfall testing, based in part on the SVF analysis. 
•    Conduct all required outfall testing as determined by SVF and regulatory requirements. 
•    Prepare a comprehensive report documenting:
o    The methodology used to determine SVFs
o    SVF values for each outfall
o    A list of outfalls requiring testing
o    testing results for each applicable outfall
•    Provide a budgetary cost estimate for identifying the town’s key junction manholes, a task anticipated as a 2028 permit requirement.
2. Town storm sewer system documentation
•    Map and confirm interconnections across the town’s entire storm sewer network. 
•    The town’s ArcGIS storm sewer system map to accurately reflect interconnections and linkages between all catch basins, manholes, storm drains, and outfall points.
3. Documentation and compliance support
•    The town’s current ms4-related policies, procedures, annual reports, and plans, including but not limited to the notice of intent (NOI) and stormwater management plan (SWMP), and recommend any updates and additions necessary to ensure full compliance with the current ms4 permit.
•    Develop or revise a written illicit discharge detection and elimination (IDDE) program that meets current permit requirements and is tailored to the specific conditions and needs of the town. 
•    Update the town’s WordPress-based website, as needed, to ensure public accessibility to all ms4-required materials, including:
o    Annual reports
o    Public education materials
o    Program documents
•    Evaluate town current data recording and reporting system and compare with alternative approaches for catch basin cleaning data capture, reporting and tracking. 
•    The comparison note cost, ease of use, error rate of each approach, ease of generating annual report, and whether trend analyses are supported.

- Contract Period/Term: 1 year
- Questions/Inquires Deadline: August 14, 2025