WEB-BASED LOAD DURATION CURVE Indrajeet Chaubey Purdue University

Collaborators Christine Urban – EPA Region 5 Bernard Engel, James Hunter, Joseph Quansah, Larry Theller – Purdue University K.J. Lim – Kangwon National University S. Goodwin – IDEM Thomas Over - USGS

Flow Duration Curve (FDC) Flow Duration Curve (Adapted from USEPA, 2007)

Load Duration Curve (LDC) Flow Duration Curve (USEPA, 2007) In compliance Out of compliance

Web-Based Flow Duration and Load Duration Curve Tool

1. Enter/Upload Flow Data for FDC This option lets you enter your own flow data directly on the spreadsheet This option lets you upload your own flow data from an existing file

Flood Conditions 100 cfs Flow Duration Curve ( ) for USGS Gauge , Cedar Creek, IN 1A. Enter Flow Data for FDC FDC – Analysis

You can download the dataset by Clicking on this button You can click on the graph/image to save it on your computer 1A. Enter Flow Data for FDC

2. Enter / Upload Flow and WQ Data for LDC This option lets you enter your own flow and WQ data directly on the spreadsheet This option lets you upload your own flow and WQ data from an existing file

2A. Enter / Upload Flow and WQ Data for LDC You can type your own description here Date should be in yyyymmdd format Flow unit can be either cms or cfs Clicking this button will create the FDC and LDC WQ unit can be ppm, ppb or count/100ml You can type water quality pollutant name here You can enter WQ standard or criteria value

Flood Conditions 100 cfs Flow Duration Curve ( ) for USGS Gauge , Cedar Creek, IN FDC –Analysis 2. Enter / Upload Flow and WQ Data for LDC

LDC ( ) for Ammonia at USGS Gauge , Cedar Creek, IN FDC – Result Analysis 2. Enter / Upload Flow and WQ Data for LDC

WQ Target (0.10 ppm) Target Concentration Graph for Ammonia at USGS Gauge , Cedar Creek, FDC – Result Analysis 2. Enter / Upload Flow and WQ Data for LDC

3. Retrieve USGS Flow Data and Enter /Upload WQ Data for LDC 3 This option lets you use Google to select a USGS Gauge and directly upload flow data into the tool This option lets you enter a USGS Gauge number to directly upload flow data into the tool

3A. Retrieve USGS Flow Data and /Upload WQ Data for LDC You can click here to retrieve USGS flow data

3A. Retrieve USGS Flow Data and Enter /Upload WQ Data for LDC 3 Select beginning and Ending dates Click this button to Generate FDC only

3A. Retrieve USGS Flow Data and Enter /Upload WQ Data for LDC Select beginning and Ending dates Click this button to Generate LDC Flow unit can be either cms or cfs You can type your own Description here You can enter WQ standard value WQ unit can be ppm, ppb or count/100ml You can type water quality pollutant name here

4. Using USGS Flow Data * Drainage Area Ratio and Entered /Uploaded WQ Data for LDC This option lets you use Google to select a USGS Gauge and directly upload flow data into the tool This option lets you enter a USGS Gauge number to directly upload flow data into the tool Enter Watershed Area-Ratio

5. Enter Flow and WQ Data for LDC with Surface-runoff and Estimated Loads Date should be in yyyymmdd format Flow unit can be either cms or cfs WQ unit can be ppm, ppb or count/100ml You can type your own Description here Select Aquifer Type

Please visit the link below for most up to date information on FDC and LDC