Erosion, Sediment, and Turbidity Control on Construction Sites


Erosion, Sediment, and Turbidity Control
on Construction Sites

Registration is open

Click here to register

Jazmin Garcia-Lawson
Jamie Luther

May 14, 2024
Raleigh, NC




There is increasing pressure on construction site managers to reduce the off-site impacts of stormwater runoff on streams, lakes, and estuaries adjacent to their projects. Traditional erosion and sediment control measures, even when properly installed and maintained, will often release highly turbid water to the environment. Increasing scrutiny and regulation of these discharges is driving developers to seek cost-effective practices to address the turbidity that standard sediment traps and basins cannot capture. With over two decades of research including construction site testing, we’ve found that turbidity can be reduced to often two orders of magnitude lower using chemical treatments. This workshop will provide participants with the background and knowledge to implement a wide range of methods to reduce turbidity in construction site stormwater, in addition to traditional erosion and sediment controls.

The workshop is designed to provide practical information on the use of chemical treatments to improve water quality for professionals involved in designing and managing erosion, sediment, and turbidity control on construction sites.

Test Your Sediment Samples

Bring one or more samples of sediment from your own construction sites. You will have an opportunity to practice the screening process to match the best polymer to your sediment. Bring about 200 grams or a 1/2 cup in a small container. Please do not bring samples from outside North Carolina.



You Will Learn About:

  • Background in theory and chemistry, environmental and regulatory concerns.
  • Optimal erosion control methods
  • A variety of methods to reduce sediment losses with little additional cost.
  • Key factors in making polyacrylamide work in passive dosing systems.
  • Methods available for treating pumped water.
  • The relative risks of using chemical treatments for turbidity reduction.
  • How to estimate the costs and materials needed for projects.
  • Screening methods using your own soil (or those we have on hand).

Please wear appropriate clothing for field demonstrations.
(hat, sunscreen, jacket, proper footwear, rain gear, etc.)

Who Should Attend:

  • Contractors
  • Site Foremen
  • Developers
  • Designers
  • Landscape Architects
  • Environmental Code Enforcement Officers
  • Property Owners
  • Surveyors
  • Professional Engineers

Professional Education Credit:

  • Landscape Architects – 6.5 hours (approval pending)
  • Professional Engineers and Surveyors – 6.5 PDHs (self-claim)
  • Certified Professional in Erosion & Sediment Control – 6.5 PDUs (self-claim)
  • Licensed Soil Scientists – 6.5 hours (self-claim)

 Registration Information

May 14, 2024

Click here to register

Participant: $225

The registration fee includes refreshments, lunch, and a certificate of attendance.

Workshop Address:
Booth Field Learning Lab
4000 Chi Rd.
Raleigh, NC 27603

Nearby Hotels:
Holiday Inn Express Hotel & Suites
3741 Thistledown Dr.
Raleigh, NC

TownePlace Suites by Marriott
3771 Thistledown Dr.
Raleigh, NC


7:30-8:00 am Registration
8:00-8:35 am Introduction
Rich McLaughlin

Outline and Purpose of Course

8:35-9:00 am Erosion and Sediment Control Basics
Adam Howard

Diversions, check dams, sediment basins, perimeter controls.

9:00-9:30 am Erosion Control Enhancement with PAM
Rich McLaughlin

How PAM can help with erosion control with different products, including straw, blankets, and hydromulch. What rates to use and methods of application.

9:30-10:00 am Passive Dosing Approaches for PAM
Christina Kranz

How to adjust and combine different products with PAM to get the flocculation you need. Wattles, pipes, powder, logs, and more!

10:00-10:15 am Break
10:15-10:45 am Active Dosing Systems 
Rich McLaughlin

Pumped water can be treated in many different ways, from simple and inexpensive to portable water treatment plants.

10:45-11:15 am Toxicology 101: Determining Risks and Benefits of PAM
Rich McLaughlin

Key elements of real and perceived risks of polyacrylamide use relative to suspended sediment and turbidity. Getting comfortable with chemical treatments!

11:15-11:30 am Local Program Experience with Turbidity Control
Ryan Eaves
11:30 am – 12:30 pm Lunch – provided
12:30-2:30 pm Field Demonstrations: Putting your knowledge to work
2:30-2:45 pm Break in classroom
2:45-4:00 pm Testing Soils and Sediment
Test samples from your own sites or from our stock of soils using PAMs with different properties. Determine optimal dosage rates. Calculate example project costs.