1. Stormwater Commitments
Categorical Exclusion Training Class – Presented by the Office of Environmental Services

2. What is Stormwater Runoff?
Stormwater runoff is rain or snowmelt that flows over land and does not percolate/get absorbed into the soil
[2] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

3. Stormwater Pollution Primary Pollutants Sediment Heavy Metals
Oil & Grease
Solids
Salt
Sources
Brake dust, tire wear, fluids
Litter
Construction
Maintenance Activities
Atmospheric Deposition
The primary pollutants found in stormwater are shown here. Sediment is the only pollutant we are required to remove at this time.
[3] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

4. Regulations Federal Water Pollution Control Act Clean Water Act NEPA
ORC Chapter 6111 (Water Pollution Control)
Ohio EPA National Pollutant Discharge Elimination System (NPDES) Permits
Construction General Permit (CGP)
Watershed Specific CGP
[4] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

5. Environmental Impacts
Construction Stormwater Impacts:
Stormwater runoff quality during and after
Primary Commitments:
Compliance with NPDES Permits
Temporary sediment and erosion controls during construction
Post-construction stormwater management controls after construction (permanent)
Secondary Commitments:
Local stormwater programs or commitments
[5] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

6. Addressing Impacts ODOT Responses:
Temporary sediment and erosion control during construction
Supplemental Specification 832
Post-construction stormwater management controls (after construction - permanent)
L&D Manual, Vol. 2 Drainage Design
[6] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

7. Addressing Impacts Post-Construction Stormwater Management
ODOT BMP Toolbox
Vegetated Biofilter
Manufactured Systems
Extended Detention
Retention Basin
Infiltration Techniques
Bioretention Cell
Constructed Wetlands
All post-construction BMPs require long term maintenance plan
[7] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

8. Environmental Impacts
Permits Tab - EnviroNet:
Only 1 question we need to answer…
[8] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

9. Environmental Impacts
Question 1:
Does the project require coverage under the CGP? (Notice of Intent = NOI)
[9] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

10. Construction General Permit (NOI)
Question 1a:
Is the project new construction/redevelopment or routine maintenance?
New Construction / Redevelopment
Construction with 1 acre or greater of earth disturbance activities
Routine Maintenance
Specific project types with less than 5 acres of earth disturbance activities
[10] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

11. If not listed, the project cannot be considered “routine maintenance”
Routine Maintenance Projects
What is Routine Maintenance?
ODOT L&D Manual, Vol. 2 Section
Berm repair or topsoil placement along shoulder
Bridge abutment repair
Bridge deck overlay
Bridge deck replacement
Chip sealing
Culvert repair/lining/some replacement
Curb repairs
Ditch cleanout
Fence repair/replacement
Full depth pavement repairs
Guardrail installation/replacement
Lighting maintenance
Linear grading
Loop detector repairs
Noise wall repair
Partial depth pavement repairs
Pothole filling
Resurfacing
Sign repair/maintenance
Signal installation/maintenance
Tree and brush removal
Sidewalk Replacement
Isolated Slide Repairs
If not listed, the project cannot be considered
“routine maintenance”
[11] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

12. Routine Maintenance Projects
What is Routine Maintenance?
ODOT L&D Manual, Vol. 2 Section
Berm repair or topsoil placement along shoulder
Bridge abutment repair
Bridge deck overlay
Bridge deck replacement
Chip sealing
Culvert repair/lining/some replacement
Curb repairs
Ditch cleanout
Fence repair/replacement
Full depth pavement repairs
Guardrail installation/replacement
Lighting maintenance
Linear grading
Loop detector repairs
Noise wall repair
Routine Maintenance does not equal “Maintenance Project”
[12] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

13. Environmental Impacts
Question 1b:
Is the project in a Watershed Specific CGP Area?
[13] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

14. Environmental Impacts
Question 1c:
Not really a question, but remarks should clarify your assumptions…
[14] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

15. Environmental Commitments
Question 1d:
What are the commitments?
[15] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

16. Environmental Commitments
Examples
Commitment 1:
Notice of Intent submitted to EPA
Commitment 2:
Project needs to comply with CGP or watershed specific CGP
Commitment 3:
Project will address local stormwater issues
Commitments should be kept general at this point
Only commit to what we know for sure
[16] Categorical Exclusion Training Class – Presented by the Office of Environmental Services

17. Categorical Exclusion Training Class
Questions?
Becky Humphreys
(614)
[17] Categorical Exclusion Training Class – Presented by the Office of Environmental Services
Categorical Exclusion Training Class