MDE Flocculants

​​​​​​​​​​​​​​​​​​​Chemical Additive Forms and Guidance​​​

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Authorization for use of chemical additives as part of an NPDES permit or NPDES general permit registration is required prior to use, including the use of additives on the approved list below.​

  
  
  
  
  
  
  
Applied Polymer Systems (APS)APS 702b Silt Stop42 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 702c Silt Stop42 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 703d Silt Stop38.3 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 703d#3 Silt Stop51.8 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 705 Silt Stop27.7 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 706b Silt Stop42 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 707a Silt Stop8.96 mg/LAnionic7/27/2022
Applied Polymer Systems (APS)APS 708x Silt Stop32.08 mg/LAnionic7/27/2022
Applied Polymer Systems (APS)APS 710 Silt Stop128.34 mg/LAnionic3/4/2024APS 710 Letter
Applied Polymer Systems (APS)APS 730b Silt Stop5.6 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS 740 Silt Stop5.2 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS702AA Silt Stop6.98 mg/LAnionic8/21/2019
Applied Polymer Systems (APS)APS712 Silt Stop61.75 mg/LAnionic11/6/2020
Applied Polymer Systems (APS)Pond Clear Plus36.54 mg/LAnionic7/17/2024
Biostar, Inc.2% Chitosan Acetate169.86 mg/LCationic4/9/2025Chitosan Acetate Letter
Biostar, Inc.BDX-30522.60 mg/LAnionic4/9/2025BDX-305 Letter
Biostar, Inc.Bridger 755 (also called Biostar-AP)13.91 mg/LAnionic4/9/2025Bridger 755 Letter
Biostar, Inc.Chitosan Lactate203.00 mg/LCationic4/9/2025Chitosan Lactate Letter
Carolina Hydrologic, LLCH30 PAM - granular0.18 mg/LAnionic7/15/2022
Carolina Hydrologic, LLCHydroLoc Floc Flat 5#, Floc Roll 2.5#, & Floc Line 2.5#1.18 mg/LAnionic7/27/2022
Clear Creek Systems, Inc.FlocClear (2% chitosan acetate)26.75 mg/LCationicRequires Monitoring1/31/2025FlocClear Letter
DoberHaloklear BHR - P5078.4 mg/LCationicRequires Monitoring9/18/2024BHR-P50 Letter
Dober HaloKlear LBP 2101152.75 mg/LAnionic4/20/2021
Dober HaloKlear Liquifloc 2%4.37 mg/LCationicRequires Monitoring8/27/2024
DoberLBP-2101 and LiquiFloc 2% Dual Polymer System34.25 mg/LAnionic / CationicMonitoring Required8/28/2024Dober Dual Polymer Letter
Neo Solutions Inc.NS 6850P7.69 mg/LAnionic5/6/2025NS 6850P Letter
SeProEutroSORB WC2.05 mg/LAnionic2/15/2024EutroSORB WC Letter
Tidal Vision, USATidal Clear 1%16.26 mg/LCationicMonitoring Required7/27/2022
Tidal Vision, USATidal Clear Hybrid3.69 mg/LCationicMonitoring Required7/27/2022
​Date Updated: 3/8/2025