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MPD Infiltrometer

Guarantee

Upstream Technologies Automated MPD Infiltrometer warrants the following:
  • Upstream's Automated MPD strictly follows ASTM Standard D8152

  • The electronics within the Automated MPD Head, measures the water head delta in the MPD cylinder to an accuracy of +/- 1%
    See: MPD Accuracy (PDF)

  • Warranty:

    • All components are warrantied (repair or replace at Upstream's option) for one year from the date of purchase.
    • Post Warranty: Upstream will repair or replace, at no charge, with an order for 30+ test upload credits.
    • Contact Upstream Technologies for Instructions.
    • Customer pays for shipping component to Upstream.
    • Upstream pays for return shipping.


  • Annual Calibration:

    • Annual Calibration is Free with the purchase of at least 10 test uploads per year.
    • See: MPD Calibration Quote and Details
    • Recalibration includes head refurbishment to "Like New" condition.
Contact Upstream Technologies for Warranty or Calibration concerns, before shipping any component to Upstream.
  • Customer pays for shipping component(s) to Upstream.
  • Upstream pays for return shipping.
MPD Documents

MPD Login

MPD Brochure (PDF)

Sample MPD Report

MPD Demonstration Video

MPD App Guide

What's included with each MPD kit?

MPD PRICING

GUARANTEE

Build America Buy America Certificate(PDF)


Technical

ASTM STANDARD D8152

What is Ksat? (PDF)

MPD - Double Ring Comparison (PDF)

MPD Accuracy (PDF)

MPD Explained (PDF)


Research Papers

MPD performance vs other methods (PDF)

MPD Saturated Conductivity Surface Soil (PDF)

Field Infiltration Measurement (PDF)

Math used to calculate site wide weighted average of multiple MPD tests across a site


CIP for Infiltration

Capital Improvement Planning
for Infiltration BMP's (video)

Municipalities using the MPD


ASTM Standard D8152 defines the methodology for performing a manual MPD test. This method is in the Public Domain.

Upstream Technologies has automated this ASTM standard allowing anyone to perform this test.

Upstream Technogies has patented this automation.
U.S. Patent #10,739,242

Engineers

Use the MPD infiltrometer to provide a site-specific Ksat for design of infiltration practices. No more relying on vague ranges provided by soil surveys! Also use it to quickly verify the construction of these practices before authorizing payment to the contractor.


Public Works

Perform annual Ksat tests on all of your agencies rain gardens, infiltration basins, and swales. Easily monitor any changes in infiltration capability over time.

History

The MPD methodology and calculations have a long history dating back to 1911 with the Green-Ampt theory for estimating infiltration, which incorporates many variables that other methods, such as Darcy's Law, do not. Some of these variables include: Soil Suction Head, Porosity, Hydraulic Conductivity and Time.

Two men, Philip & Dunne, then furthered this research and developed a methodology that incorporated the use of a cylinder, filled with water and measured head drop over time. The subsequent math equations incorporate the Green-Ampt theory to predict the field saturated (or steady state) infiltration rate, also known as Hydraulic Conductivity. Philip and Dunne published their methodology in 1993 for peer review.

The University of Minnesota modified Philip & Dunne's work with a variation to the equation in 2007, renaming the method: Modified Philip Dunne or (MPD). This method has been peer reviewed and vetted in the world-wide academic and scientific communities since 2007, becoming an ASTM STANDARD D8152 in 2018.

See Google Search


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SAFL Baffle: U.S. Patents: #8715507B2, #8663466B2, #9506237B2, CANADA Patent: #2742207
SKUNK Garbage Trap: U.S. Patent #10,408,242
Automated MPD Infiltrometer: U.S. Patent #10,739,242