APS 700 Series Floc Logs®

Targeted Flocculants for Sediment Control

Applied Polymer Systems products harness the power of environmentally friendly materials to solve numerous water quality, erosion, and sediment challenges. Anionic polyacrylamide (PAM) is a polymer flocculant that can be used for a wide variety of erosion, sediment, and stormwater management applications. APS products bind, stabilize, and/or remove commonly problematic particles like sediment (clays, silt), metals, and nutrients to prevent erosion, clear water, and improve BMP performance. APS products are made and packaged in the United States, are drinking water quality (NSF/ANSI Standard 60 Certified), have been extensively toxicity tested by third party laboratories in accordance with EPA standards, and are safe for both terrestrial and aquatic organisms and environments.

Product Overview

APS 700 Series Floc Logs® are customized polyacrylamide (PAM) flocculants built to treat sediment-laden runoff at the source. Ideal for placement in ditches, sediment basins, and channels, they effectively bind turbidity-causing particles such as clays, metals, and inanimate nutrients. Manufactured in the U.S. and extensively tested for toxicity compliance, these logs improve BMP performance while supporting water quality goals.

Custom-Formulated for Site-Specific Soil and Water Chemistry

Effective in Ditches, Channels, and Sediment Basins

Reduces Turbidity, Metals, and Inanimate Nutrients

 

Primary Applications

  • Mine tailings and waste pile ditches
  • Stormwater drainage from construction and building sites
  • Road and highway construction runoff ditches
  • Ditch and treatment system placement for all forms of highly turbid waters (less than 4% solids)
  • Dredging operations as a flocculent.

Features and Benefits

  • Removes suspended soils and clay from water
  • Prevents colloidal solutions in water within ditch systems
  • Binds and removed cationic metals
  • Binds pesticides and fertilizers within runoff water
  • Reduces operational and cleanup costs
  • Reduces environmental risks
  • Help stay in compliance and meet state and federal regulations

Directions for Use

  1. Place APS 700 Series Floc Logs in the upper quarter to half of a stabilized ditch system, as close as possible to turbidity source.
  2. Loop internal attachment ropes over stakes to hold Floc Logs in place.Mixing and adequate reaction time are key!
  3. Add sand bags, wattles, cinder blocks, etc. to increase turbulence and mixing. Floc Logs are designed to treat dirty water, not liquid mud; when the water contains heavy solids (exceeding 4%), settle heavy solids before Floc Log treatment. Floc Logs must not be placed in areas where heavy erosion would result in the Floc Logs becoming buried.
  4. Line swales and ditches to prevent new sediment eroding and entering the treatment area. Where there is heavy sedimentation, maintenance will be required. Floc Logs can easily be moved to different locations as site conditions change. Water quality will be improved with the addition of a dispersion field or soft armor covered ditch checks below the Floc Log(s) to collect flocculated particulate. Construction of mixing weirs may be required in areas where short ditch lines, swelling clays, heavy particle concentrations, or steep slopes may be encountered.

Application Rates

  • Flow through application rate: 1 Floc Log per 50-70 GPM flow (contact us for dosing assistance on flows greater than 1,000 gpm)
  • Recirculation/ total volume application rate: 1 Floc Log for every 350,000-500,000 gallons
  • It is not suggested to use fewer than 4 Floc Logs per application, even in low flow settings
  • Replace logs when fully dissolved
  • Exceeding suggested application rates will not improve performance!

Precautions / Limitations

  • APS 700 Series Floc Logs are extremely slippery when wet
  • Best results in flows 5ft/ sec or less
  • Clean up spills quickly
  • APS Floc Log will remain viable for up to 2 years when stored out of UV rays
  • APS 700 Series Floc Logs are site specific and soil types and samples must be analyzed to ensure optimal performance. Testing is necessary and is free. For product information, treatment system design assistance, or performance issues, contact Applied Polymer Systems

Sediment-Turbidity Removal

Contact us to have your site’s soil and water matched with the correct APS product for free!
APS 700 Series Floc Logs® installed in a stormwater ditch for sediment control.

Frequently Asked Questions

Here are some quick answers to common questions about APS polymers, flocculants, and stormwater testing. For more details, visit our full FAQ page.

General Company and Approach

  • What does Applied Polymer Systems (APS) do?
    APS develops and supports polymer-based solutions for erosion and sediment control during construction.


    🔗 Learn more about APS

  • What makes APS different from other erosion control suppliers?
    APS focuses on testing, technical support, and correct polymer selection rather than one-size-fits-all products.

    🔗 APS technical support approach | Polymer performance testing

  • Who typically works with APS?
    APS works with engineers, contractors, inspectors, and regulators involved in construction-phase stormwater compliance.

    🔗 Industries served
  • What are flocculants?
    Flocculants help fine sediment particles bind together so they can settle and be captured within BMPs (Best Management Practices).


    🔗 Learn more about flocculants

  • Why are flocculants used in construction stormwater management?
    They address fine silts and clays that traditional sediment controls struggle to capture.

    🔗 Fine sediment and turbidity control solutions

  • Do flocculants replace erosion and sediment controls?
    No. Flocculants enhance the performance of BMPs, not replace them. They work best in combination with properly designed and maintained basins, ditches, and inlet protection.

  • What is APAM?
    APAM stands for Anionic Polyacrylamide, a polymer flocculant commonly used in construction stormwater applications.

    🔗 Anionic PAM overview

  • Is all APAM the same?
    No. Molecular weight and charge density vary, affecting how the polymer interacts with different soils.

    🔗 Polymer selection and matching
  • Why does the charge of a flocculant matter?
    Polymer charge affects how it interacts with sediments and aquatic life.

    🔗 Polymer chemistry and performance

  • Why is anionic PAM preferred for stormwater applications?
    Anionic PAM carries a negative charge that does not readily bind to fish gills or aquatic organisms when used correctly.

    🔗 Environmental considerations for polymer use

  • Why are cationic polymers not used in construction stormwater?
    Cationic polymers carry a positive charge and can bind strongly to fish gills, making them unsafe for stormwater applications.

    🔗 Proper polymer selection guidance

  • How does APAM reduce risk to aquatic life?

    When properly tested and applied, APAM binds fine sediment particles together so they settle and can be captured within BMPs, reducing turbidity and minimizing interaction with aquatic organisms downstream.

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