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Southeast Michigan Council of Governments. Stormwater System Maintenance. The Dos and Don’ts of Street Sweeping, Catch Basin Cleaning & Structural Control Inspections. Presentation Topics. Catch Basin Cleaning: Prioritizing Areas/Scheduling Maintenance, Disposal & Documentation

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Presentation Transcript
stormwater system maintenance
Stormwater System Maintenance

The Dos and Don’ts of Street Sweeping, Catch Basin Cleaning & Structural Control Inspections

presentation topics
Presentation Topics
  • Catch Basin Cleaning:
    • Prioritizing Areas/Scheduling
    • Maintenance, Disposal & Documentation
  • Street Sweeping
    • Reasons for Sweeping; Prioritizing Areas
    • Disposal & Documentation
  • Detention Basins
    • Overall maintenance evaluation
  • Additional Resources
npdes phase ii requirements
NPDES Phase II Requirements

Know what you own &/or operate

Map and/or list

Maintenance Procedures

Maintenance Schedules

Maintenance Waste Disposal

for all stormwater structural control maintenance
For all Stormwater Structural Control Maintenance….
  • Roads; Parks; Admin Buildings; Public Works; Parks; Golf Course Maintenance; Schools; Bus Yard/Transportation Facilities/Other
      • Storm sewers / catch basins
      • Detention Basins
      • Other stormwater BMPs
        • Swirl Concentrators
        • Catch Basin Inserts
        • Swales
        • Pervious Pavement
    • Maintenance Activities
      • Street Sweeping
      • Catch Basin Cleaning
      • Detention Basins
for all stormwater structural control maintenance6
For all Stormwater Structural Control Maintenance….
  • Waste Characterization…
    • Identify what you dispose/discard from your facility & maintenance practices
    • Examples from Municipalities; Counties & School Districts
      • Catch Basin Cleanings / Storm Sewer Cleanout Residue
      • Sanitary Sewer Cleanout Residue
      • Street Sweepings
      • Used Oil; Filters; Batteries
      • Fluorescent Light Bulbs
      • Computers
      • Other Vehicle Maintenance Wastes
for all stormwater structural control maintenance7
For all Stormwater Structural Control Maintenance….
  • Waste Characterization…
    • Document
      • MDEQ Waste Characterization Guidance
      • Knowledge &/or Analytical Testing
      • Disposal Facility – Waste Profile Sheet
      • Keep for 3 years
    • Site ID issued by MDEQ (Form EQP5150)
  • Catch Basin Cleaning/Street Sweeping
waste characterization summary
Waste Characterization Summary*
  • Storm Sewer Cleanout Residue (i.e. catch basin cleanings)
    • Liquid Industrial Waste [Part 121 of Act 451]
  • Street Sweepings
    • Solid Waste [Part 115 Rule 130]
    • Liquid Industrial Waste (if free liquids)
  • Unless inspection (odor, color, stains, etc.) or knowledge (past spill) determines impact

Material not Designated Waste*

  • Ditch Cleanings
  • Excavated Dirt from Watermain Breaks
    • Follow-up from March 2010 Training
    • Not a waste if only potable water contained in dirt

*Awaiting MDEQ Confirmation/Requesting Clarification

for all stormwater structural control maintenance9
For all Stormwater Structural Control Maintenance….
  • Written Procedures…
    • Prioritizing Areas for Maintenance
    • Maintenance Schedules
    • Contractor vs. In-House Maintenance
    • Forms/Tracking: Inspection & Cleaning
    • Transport & disposal requirements
      • On-site (Public Works/Road Commission/School District Bus Yard)
      • Outside Contractor
  • Document…document…document EVERYTHING!
  • KEEP ALL YOUR DOCUMENTATION!
catch basin cleaning
Catch Basin Cleaning
  • Municipality vs. Contractor (Site ID Form EQP5150)
  • Prioritizing Areas/ Collaborating Across Jurisdictions
  • Inspections/Cleaning
  • Transport & Disposal
    • Contractor Manages
    • Municipality Transports to Disposal Facility (WWTP or Landfill: Contact for Requirements)
catch basin cleaning11
Catch Basin Cleaning
  • Prioritize
    • County/community wide vs. municipal-owned properties
    • Standard rotating schedule
      • Roads: every 5 years
      • Properties: monthly; semi-annually; annually
        • Maintenance yards more frequently than employee /public parking lots
    • Areas w/ BMPs vs No BMPs
    • Areas Draining directly to “Impaired” Waters
    • Areas receiving high sediment load

Photo Courtesy of ECT

catch basin cleaning12
Catch Basin Cleaning
  • Inspections
    • Prior to cleaning
    • Criteria for Cleaning
      • With Sump: > ½ Full
      • No Sump: Clean All Dirt
    • Odor, Stains, Sheen, Color

Bloomfield Township

*Once approximately 50% full, runoff into catch basins tends to flush-out material (MPCA, 2000)

vactoring catch basins
Vactoring Catch Basins
  • Consolidated Manifest
    • Generator ID
    • Transporter ID
    • Designated Facility ID
      • Dewatering Facility
      • WWTP
      • Landfill
  • Trip Log
    • Date, locations, material & quantity, designated facility
  • Map

Canton Township

once we have vactored then what
Once we have vactored…then what?
  • Transport to Dewatering/ Decanting Location
    • Must be manifested
      • Generator; Transporter; Designated Facility
  • Dewatering Facility
    • Enclosed
    • Drains to Sanitary (w/ approval)
    • No trackout
    • Solids to landfill

City of Saline

manifesting requirements
Manifesting Requirements
  • Site ID (EQP 5150)
  • Owner Cleaning
    • Municipality
    • County
    • School District
    • Generator = Owner
    • Transporter = Owner
    • Designated Facility = Liquid Industrial Waste Facility
      • Owner if Dewatering @ Site
      • Disposal Facility if WWTP or Landfill
  • Contractor Cleaning
    • Generator = Contractor
    • Transporter = Contractor
      • Act 138 Permit & Registration
      • Insurance Requirements
    • Designated Facility = Liquid Industrial Waste Facility
      • WWTP
      • Landfill
  • See MDEQ Waste Data System to locate transporters & designated facilities.
  • See Consolidated Manifest & Operational Memorandum 121-3 & 121-4
case study city of farmington hills
Request for Bid

Reference to applicable regulations

Requirement to maintain traffic flow

Cleaning assigned catch basins

Notify DPW of catch basins needing repair

Price per catch basin/lineal foot storm sewer

Documentation

Procedures

City inspects/marks prior to contractor cleaning

Inspection report

Decant log

Slurry solids

Contractor using lined rolloff box

Transport to designated facility daily

Approximately $42k annually; 800 catch basins

Case Study: City of Farmington Hills
street sweeping
Street Sweeping

Elgin Mechanical Broom Sweeper 1914

selecting a sweeper
Selecting a Sweeper

Source: Minnesota Department of Transportation

street sweeping20
Street Sweeping
  • Prioritizing & Scheduling
    • Properties (quarterly/monthly)
      • Public & Employee Parking Lots
      • Maintenance Yards
      • Bus Yards
    • Roads (2x per year or more)
      • Primary; Secondary; Local
    • Areas w/ BMPs vs No BMPs
    • Impaired Streams
    • High Sediment Load
street sweeping efficiencies
Street Sweeping Efficiencies

Source: http://www.seattle.gov/util/Services/Drainage_&_Sewer/Keep_Water_Safe_&_Clean/Street_Sweep_Project

*U.S. Geological Survey Water-Resources Investigation Report 02-4220

**U.S. Geological Survey Scientific Investigations Report 2007–5156

sweepings dewatering disposal
Sweepings Dewatering & Disposal
  • Storage for dewatering
    • Enclosed
    • Drains to Sanitary (w/ approval)
    • No trackout
    • Solids to landfill

City of Saline

case study canton township
Case Study: Canton Township
  • Mechanical and Vacuum Sweepers (leased then purchased both)
  • Prioritizing/Scheduling
    • Construction Sites
    • DDA (Ford Road)
    • County (Main) Roads (monthly)
    • Municipal Parking Lots (bi-monthly)
    • Residential on request
  • $110/curb mile (1,000 mi/year)
  • Canton Waste Recycling provides 10 yard roll-off box at DPW
  • Approx 200 yards annually
  • CWR transports to landfill
  • Periodic analytical testing required by landfill
  • Waste profile sheet retained as waste characterization
detention basins
Detention Basins
  • Properties
    • Municipal
    • Parks
    • Maintenance Yards
    • Schools & Maintenance Facilities
  • Maintenance & Responsibility
    • Storm sewer system/inlet(s)/outlet
    • Sediment accumulation
    • Erosion
    • Trash/Debris
inspection basics know your design
Inspection Basics: Know your Design
  • Review Engineering and Landscape Plans.
  • As-Builts/Final Measures are Critical if Available
    • Location of inlets/outlet
    • Permanent water or not?
    • Emergency overflow location

www.land2plan.com/Stormwater.htm

slide26

Inspection Basics

  • Structural Components
    • Inlets/Outlet Pipe
    • Embankment
    • Clogging
  • Vegetation –
    • Presence of Erosion
    • Plant Diversity
    • Invasive Species
  • Good Housekeeping –
    • Trash/Debris
    • Street Sweeping
    • Illegal Dumping
  • Sediment Management
    • Sediment Plumes
    • Mechanical Dredging
additional resources
Additional Resources
  • Waste Characterization Guidance
  • Example Waste Profile Sheet (i.e. waste characterization)
  • Site ID Application (EQP5150) & Instruction Forms
  • Liquid Industrial Waste Guidance
  • Operational Memo 121-3 & Consolidated Manifest
  • Example Bid Specifications
  • Example Inspection/Tracking form for Catch Basin Cleaning
  • Detention Basin Maintenance Brochure
  • MDEQ Waste Data System
  • MDEQ Environmental Assistance Center
thank you
Thank You

Questions?

Canton Township