Cost Considerations
Use the chart below to assess cost differences between existing and
conventional storm water practices as described on the previous pages.
Incorporate other values you may come across in the blank spaces provided.
| |
Existing or Conventional |
Storm Water BPM |
| |
Annual |
Life Cycle |
Annual |
Life Cycle |
| Construction |
|
|
|
|
| Land Purchase |
|
|
|
|
| Engineering Fees |
|
|
|
|
| Permits and Fees |
|
|
|
|
| Clearing |
|
|
|
|
| Fill |
|
|
|
|
| Vegetation |
|
|
|
|
| Seed |
|
|
|
|
| Observation/Inspection System |
|
|
|
|
| Overflow System |
|
|
|
|
| Pipes and Associated Fittings |
|
|
|
|
| Paving Stones |
|
|
|
|
| Sand/Gravel |
|
|
|
|
| Mulch |
|
|
|
|
| Concrete |
|
|
|
|
| Geotextiles |
|
|
|
|
| Vegetation Installation |
|
|
|
|
| Infrastructure Installation |
|
|
|
|
| Tanks |
|
|
|
|
| Screen |
|
|
|
|
| Installation Wages |
|
|
|
|
| Other Required Components |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| Maintenance |
|
|
|
|
| Mowing |
|
|
|
|
| Fertilizer |
|
|
|
|
| Irrigation Water |
|
|
|
|
| Electricity |
|
|
|
|
| Leaf Removal |
|
|
|
|
| Cleaning |
|
|
|
|
| Vegetation Upkeep |
|
|
|
|
| Pest Control |
|
|
|
|
| Sediment Build-up Removal |
|
|
|
|
| Soil/Aggregate Replacement |
|
|
|
|
| Chemical Tests |
|
|
|
|
| Reseeding |
|
|
|
|
| Inspections |
|
|
|
|
| Maintenance Wages |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| Savings |
|
|
|
|
| Tax Exemptions |
|
|
|
|
| Storm Water Fees |
|
|
|
|
| Water Usage |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
Note
Additional savings including aesthetics and positive publicity may be
significant, but are difficult to use as part of the decision matrix.
