When? Thursday, 26 February 2015, 12:00 pm EST - 1:30 pm EST
Cost: FREE
Categories:


Registration is closed. This event is over.


SPEAKERS:

John Cox, Water Quality Manager, City of Durham, North Carolina, Department of Public Works
Stormwater & GIS Services Division

Jon Baker, Water Quality Specialist, City of Durham, North Carolina, Department of Public Works
Stormwater & GIS Services Division

Laurel Williamson, Center for Watershed Protection, Inc.

View Archived Webcast & Resources

Discharge Detectives
Photo credit: Center for Watershed Protection

 

Join us for a webcast on advanced discovery techniques for finding and fixing high nutrient discharges from the storm sewer system. We will hear from two experts in the field on how they use a targeted approach to finding and tracking these discharges back to their source. It should be loads of fun – haha, get it?!

 

Laurel Williamson from the Center for Watershed Protection will talk about the six categories of discovered illicit discharges that your locality can eliminate for Chesapeake Bay TMDL nutrient reduction credit. She will share insights about water quality parameters and testing equipment that can be used to detect illicit discharges and methods available for tracking down those mysterious sources. She will be joined by John Cox from the City of Durham, NC who will discuss how to focus field surveys to specific places in the urban landscape that have higher potential for illicit discharges. John will also talk about the tricks of the trade that he has developed over the years through his IDDE work in Durham.

Webcast Archive

Listen to Archived Webcast

Slides from the webcast available here:

Discharge Discovery Techniques Webcast Slides

Slides from the webcast: Discharge Discovery Techniques: Finding Sources of High Nutrient Discharges in the Storm Drain System which aired on Thursday, February 26, 2015.

Version february, 26, 2015 | Size (10 MB) | File type (.pdf) | Download

Webcast Resources

Nutrient Discharges from Grey Infrastructure

Final Approved Recommendations of the Expert Panel to Define Removal Rates for the Elimination of Discovered Nutrient Discharges from Grey Infrastructure (w/ appendices)

Version november 11, 2014 long | Size (2 MB) | File type (.pdf) | Download

Illicit Discharge Detection and Elimination: A Guidance Manual for Program Development and Technical Assessments

The IDDE Bible written by the Center for Watershed Protection in October, 2004

Version october 2004 | Size (5 MB) | File type (.pdf) | Download

Illicit Discharge Detection and Elimination: Technical Appendices

The technical appendices for the 2004 CWP IDDE manual.

Size (2 MB) | File type (.pdf) | Download

City of Durham Outfall Screening and Monitoring Standard Operating Procedures

This document lists procedures for measuring field parameters and proper disposal and segregation of test kit wastes. A valuable resource indeed!

Size (229 KB) | File type (.pdf) | Download

Evaluation of Pollutants in Wastewater Generated by Mobile Commercial Car Washing Operations in Durham, NC

City of Durham's Mobile Car Washing Study Report

Version august 2012 | Size (441 KB) | File type (.pdf) | Download

Evaluation of Pollutants in Wastewater Generated by Mobile Car Washing Operations

A PPT presentation on the City of Durham's mobile car washing study

Size (2 MB) | File type (.pdf) | Download

Illicit Discharge Detection And Elimination (IDDE) Investigations Standard Operating Procedures from the City of Durham, NC

A hefty document but it may be of use other stormwater programs out there.

Version may 2014 | Size (2 MB) | File type (.pdf) | Download

Solutions for HVAC and Rooftop Cleaning

A fact sheet produced by the City of Durham, NC on proper methods for cleaning and disposal of cleaning materials for HVAC units.

Size (1 MB) | File type (.pdf) | Download

Preventing Pollution from HVAC and Rooftop Cleaning

A presentation of the results of a pilot study that was conducted by the City of Durham, NC's Stormwater and GIS Services Division.

Size (679 KB) | File type (.pdf) | Download

Using Stable Isotopes of Nitrogen and Oxygen to Identify Sources of Nitrate in Three Creeks, Durham County, North Carolina, 2011–12

A preliminary assessment of nitrate sources was conducted in three creeks that feed nutrient impaired Falls and Jordan Lakes in the vicinity of Durham County, North Carolina, from July 2011 to June 2012.

Version 2014 | Size (7 MB) | File type (.pdf) | Download

Using Illicit Discharge Programs to Monitor Bacteria

Nationally, bacteria is the leading impairment, especially for urban streams. Bacteria TMDLs are widespread, and it is challenging to track the sources of these impairments. Illicit Discharge Detection and Elimination (IDDE) is one of the six minimum measures for MS4s. Programs around the country are exploring methods to retool IDDE programs to monitor for, detect, and track bacteria sources. This webcast put on by the Center for Watershed Protection featured common-sense and economical approaches for IDDE-based bacteria monitoring, featuring several successful case studies.

Version february 18, 2015 | Open link in new window

The City of Durham’s webpage: on Pollution Prevention Resources for Businesses has loads of valuable resources!

Registration

Registration is closed for this event.