Performance testing of coagulants to reduce stormwater runoff turbidity.

Details

• Creators:
  McFalls, Jett ; Rounce, David ; Yi, Young-Jae ; Cleveland, Ted ; Storey, Beverly ; Murphy, Holly ; Barrett, Michael ; Dalton, Desirae ; Lawler, Desmond ; Morse, Audra ; Eck, Brad ; Herrmann, George R.
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• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Runoff
  • Turbidity
  • Coagulation
  • Performance tests
  • Effluents
  • Data collection
  • Flocculating agents
  • Erosion control
  • Sediments
  • Construction sites
• Publication/ Report Number:
  FHWA/TX-14/0-6638-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas. Dept. of Transportation. Research and Technology Implementation Office
• Abstract:
  On December 1, 2009, the US Environmental Protection Agency (EPA) published a rule in the Federal ; Register establishing non-numeric and, for the first time, numeric effluent limitation guidelines (ELGs). The ; numeric ELGs included a turbidity limit of 280 nephelometric turbidity units (NTU) and sampling ; requirements for stormwater discharges from construction sites that disturb 20 or more acres of land at one ; time. At that time, the EPA required Texas to implement these new requirements when the Texas ; Commission on Environmental Quality (TCEQ) renewed their Texas Construction General Permit (CGP) in ; 2013. Due to litigation regarding the initial numeric ELG implementation, the EPA put numeric ELGs on ; hold in 2011 and on April 13, 2013, proposed to withdraw the numeric ELG as a requirement. ; This project was initiated in 2010 to prepare the Texas Department of Transportation (TxDOT) for changes ; to the CGP regarding the monitoring and sampling of their construction site to meet the anticipated numeric ; ELG requirements. The scope of the project was modified due to EPA’s actions. However, in light of ; anticipated future numeric limits, the project’s monitoring and testing experiments proceeded to 1) determine ; “typical turbidity” representative of TxDOT’s construction site discharges, 2) collect performance data on ; innovative erosion and sediment control measures that might be expected to achieve the discharge standard, ; and 3) provide update to TxDOT’s Stormwater Managements Guidelines for Construction Activities.
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• Format:
  PDF
• Funding:
  Project 0-6638
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27367/dot_27367_DS1.pdf
• File Type:
  [PDF - 1.57 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:5f8d773f3f017e9c504b650f209180ce00d5838e8c01c080fa7219523345efc7