NPDES Tab

The NPDES tab allows users to enter NPDES (National Pollutant Discharge Elimination System) permit information. Indicate whether this is a permitted site and whether this site is used for monitoring or sampling. In addition, indicate the collection date, who performed the collection, and set a date for the next monitoring or sampling. This tab also contains some fields for GIS location information like X and Y coordinates.

Below the first set of fields there is a set of fields specifically for Inlet Information.

Capacity	Capacity refers to the maximum amount of flow the inlets are capable of holding (in cubic feet per second).
Inlet Area	The opening area of the structure (sum of inlet areas).
% Impervious	The percentage of area upstream of the structure that is impervious.

Inlet Grid

Below the Inlet Information fields is a grid that stores information about inlets associated with the structure. This grid can also be seen in the Structure Inspections module.

A sample of the grid appears below. Sort records in the grid by clicking on the headings. An up or down arrow (highlighted in orange below) will appear signifying ascending or descending order.

Right-click in the grid to add a record
Right-click on an existing record to get a menu with options to View Record, Add Record, Edit Record, or Delete Record.
Double-click on an existing record to open it

How To Add an Inlet

Right-click in the grid and select Add Record. The following window will appear:
Enter the inlet number. This is required and must be unique.
Enter additional information in the corresponding fields.
- Facing - The direction the inlet faces (i.e. North, South).
- Inlet Length - The opening length of the inlet.
- Catchment Area - The area upstream of the inlet.
- C Coefficient - The runoff coefficient of the area draining to the inlet.
- % Impervious - The percentage of area upstream of the structure that is impervious.
Save and Close the record.