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Divisions > Water Division > Programs/Bureaus/Units > Watershed Assistance Section >

Southern NH – I-93 Expansion Chloride Impaired Waters Documents

Project Background Information

• Southern I-93 Corridor Chloride Impairment
• Map of Watershed Areas

Total Maximum Daily Loads (TMDLs)

• Policy-Porcupine Brook TMDL
• North Tributary to Canobie Lake TMDL
• Dinsmore Brook TMDL
• Beaver Brook TMDL

Implementation Plans

• Chloride Reduction Implementation Plan For Dinsmore Brook Watershed, Windham, NH
• NH DOT Implementation Plan to Increase the Efficiency and Effectiveness of Road Salt Use to Meet TMDL – Sept, 2009

Reports and Agreements

• DOT/DES Memorandum of Agreement Original – June, 2006
• I-93 Chloride TMDL DOT/DES Memorandum of Agreement Amendment – March, 2009
• DOT 401 Water Quality Certification: I -93 Improvements – Salem to Manchester, May, 2006
• Salt Loading Due to Private Winter Maintenance Practices Final Report – June, 2007
• Potential Solutions for Reducing Road Salt in New Hampshire Report – Feb, 2008

Working Group Documents

• Salt Reduction Working Group Meeting Minutes

 

 

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