Energy-passive Groundwater Recharge Product™ EGRP™

EGRP™ -based solutions can drain waterlogged surface soils, eliminate standing water, and reduce runoff into municipal sewer drain systems, which can significantly alleviate costs associated with stormwater treatment and minimize the introduction of undesirable pollutants into our traditional stormwater systems.

  Enhanced infiltration of water provided by EGRP™-based solutions increases plant-available water content, which can lead to natural improvements in soil productivity and reduce the amount of water maintenance needed to keep lawns and agricultural crops healthy.

Low-impact development (LID) approaches in which pollution-removing technologies and EGRP™-based solutions work side-by-side to capture and treat stormwater before it becomes runoff can decrease pollutant loadings into local waterways, protecting public health and the health of aquatic habitats.

  Emulating the natural processes of aquifer recharge, EGRP™-based solutions merge ecology with technology to increase long-term rates of groundwater recharge by capturing and reclaiming stormwater and surface water generated in the built environment and directing it to permeate back into the natural groundwater system.

For a number of reasons, outdoor recreational facilities like sports fields, golf courses, playgrounds, and parks are often left waterlogged in certain areas for days following a storm event, resulting in inconveniences such as lost playing time and revenue. Our EGRP™-based solutions drain saturated soils and return outdoor recreational facilities to usable playing conditions in a significantly shorter window of time.

By eliminating the presence of stagnant water in problem areas, EGRP™ -based solutions inherently mitigate the breeding of unwanted pests such as mosquitos, reducing the risk of waterborne diseases. Eradicating standing water can also reduce potential hazards associated with gulls, waterfowl, and deer.

Excessive first-flush stormwater runoff can burden existing gray infrastructure, leading to high maintenance costs, contaminant transfer, and the risk of Combined Sewer Overflows (CSOs). EGRP™-based solutions to stormwater management challenges effectively reduce peak flow and can minimize stormwater runoff volume into municipal sewer systems by upwards of 83%.

Parjana’s℠ innovative technology mimics and enhances natural groundwater movement by taking advantage of the unique physical and chemical properties of water. EGRP™ technology accelerates infiltration into and through the near surface soils, ultimately increasing the volume of water that can be stored, infiltrated and recharged.

EGRP™ technology improves infiltration rates as a solution to get rid of standing water. The system promotes drainage by utilizing an energy-passive solution, strengthened by the natural movement of groundwater recharge techniques.

  Parjana℠ EGRP™ system improves infiltration by creating a balanced environment. Data shows that moisture content is kept at its lower energy state, which is excellent for soil health and plant growth.

EGRP™ systems neither clog nor require maintenance. Parjana℠ has monitored sites for years after installation in order to evaluate performance, and no system has stopped working or required interference.

 EGRP™ implementation consists of multiple devices that are installed vertically into the ground and arranged within a carefully calculated layout by a team of skilled engineers based on local design criteria, such as topography and soil type, as well as the individual customer’s water management objectives.

The EGRP™ can augment traditional stormwater practices by increasing the infiltration rate and management capacity of systems that capture peak volumes – such as ponds, swales, or other storage devices – or can be paired with filtration/biofiltration systems to improve the water quality of volumes being infiltrated. This integrated approach provides a “mix-and-match” design process that develops tailored solutions to capture stormwater runoff, store peak volume, absorb pollutants and/or increase infiltration rates over time.

Additionally, integrated systems are proven to significantly lower management and operations costs, as well as aid new or existing developments in meeting environmental regulations. This is achieved through the systems’ ability to reduce peak storm discharges and downstream flooding, reduce stormwater runoff pollutant loadings, and increase groundwater recharge volumes.

Each EGRP™ has a central core surrounded by four crescents, and is topped with a cap at the end closest to the surface level. 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. 

EGRP™ implementation consists of multiple devices that are installed vertically into the ground and arranged within a carefully calculated layout. The EGRP™ installation machine is 4’-wide and 16’-tall (clearance) on continuous track treads for minimal ground disturbance and maximum site access. There is no excavation resulting in material removal from the ground, nor the necessity to add new material (soil) to the site making the entire process minimally invasive.