energy-passive groundwater recharge product · energy-passive groundwater recharge product ... the...

Parjana Distribution, LLC

Energy-passive Groundwater Recharge Product

“EGRP®”

Andy Mauk Kiesland [email protected] 513-554-1200

mailto:[email protected]




The EGRP® is a long-term solution addressing groundwater recharge.

It is a unique and dynamic solution that addresses:

Soil moisture imbalance

Excess water runoff

Lack of underground water recharging

Need for Solution-Radical Innovation




Benefits of the EGRP®

Infiltrates water

Reduces runoff water

Stabilizes moisture content

Recharges groundwater

Manages surface water




How it works

The EGRP® promotes surface infiltration and distributes the water

throughout the soil. The EGRP® works as a system custom designed

for each specific site at varying depths within a specific pattern.

This site specific system joins separate soil layers, promoting connectivity

across the soil matrix. This allows both mass water flow facilitated by

gravity and diffuse water movement which is facilitated by a pressure

differential.




Description of the EGRP®

Each EGRP® has a central core with four crescents around the central core Base lengths: 5’ (1.524 m), 10’ (3.048 m), 20’ (6.096 m) & 40’ (12.192 m) Diameter: 1 ¼” (31.75 mm) Color: Natural Transparent Clear, Colorless Material: Polyethylene Material characteristics: Non-reactive with environment Abrasion resistance




Ground level

Approx. 12”-24” BELOW

5’ EGRP

10’ EGRP

20’ EGRP

The design will facilitate the distribution of water molecules in the soil matrix to have a positive influence on surface moisture conditions.

Designing a Solution




Water Infiltration

When the area at the top of the EGRP® has a higher moisture content than the area at the bottom of the EGRP®, the crescents are contracted inward causing the water to infiltrate downward.

When the area at the top of the EGRP® is dryer than the area at the bottom, the crescents of the EGRP® are expanded outward bringing the moisture content upward.




No EGRP® Representation

When standing water occurs it is usually due to poorly draining soil. Standing water has saturated the soils beneath it. Although the moisture content reduces with depth, due to the

poor infiltration rate of the soil the water does not have anywhere to go.




EGRP® Representation - During rain events

During a rain event the ground may initially be saturated but the EGRP® system will work to redistribute the moisture through the soil matrix to maintain a consistent moisture content

throughout the area of influence.




EGRP® Representation – During droughts

During drought or dry times the EGRP® system continues to provide a stabilized moisture content. If the moisture content on the bottom of the system is higher than at the top, the

system will bring moisture upward to rebalance moisture content.




Installation Process

Site Analysis & Design

Installation

Minimally invasive




RESEARCH DATA




Cooperation & Collaboration




Belle Isle, MI (Environmental Consulting & Technology, Inc - 2015)

Overview Equipment used:

Area velocity flow meters placed in storm drains

Piezometers to monitor groundwater level

Independent water quality samples

• Comparing flow data from two areas; test (EGRP® Installation) and control (No EGRP®s)

• Comparing flow data from “Early Acclimation” 67 days of data May-July to Post data

July-September (Similar rainfall in both “Early Acclimation” and Post data ( 8.7 inches vs 8.84 inches))

• One groundwater sample from both the control and test areas




Belle Isle Results (Environmental Consulting & Technology, Inc - 2015)

45% increase in stormwater runoff from control area comparing the same time frame of

data Due to saturation never “dispersing” like in the EGRP® area

63% reduction in stormwater runoff from test area (EGRP® installation area)

Therefore we can conclude infiltration in the control area decreased as the summer went on while the test area actually increased.

A single data point comparing the EGRP® and control area shows no difference in groundwater quality (phosphorus, chloride, total dissolved solids, E. coli)




Analysis conducted in collaboration with Michigan State University.

Soil Type: Mostly silty, clay w/ traces of sand & gravel

Testing: Sodium bromide slug test

Coleman A. Young Municipal Airport Dr. David Lusch

Results: Determined EGRP® does not act like vertical drain 7 to 10 times increase in infiltration




Mettetal Airport, MI (Mannik & Smith Group, Inc - 2015)




Mettetal Airport, MI (Mannik & Smith Group, Inc - 2015)

Equipment Used:

– Pressure transducer water level sensors in the forebay and monitoring wells

– Weather data from Mettetal Airport Station

– Compared water level in the forebay to rainfall

– Studied water level in the forebay and monitoring wells to determine a hydrological connection and groundwater flow

Mettetal Results/Talking Points

System achieved its’ goal of infiltrating a 1” storm in 72 hours after EGRP® installation




Mettetal Airport- Results (Mannik & Smith Group, Inc - 2015)




Overview of the test site

Manholes




Concept




Plan View



energy-passive groundwater recharge product · energy-passive groundwater recharge product ... the...

Documents