40 mil pond liner is the kind of HDPE geomembrane pond liner with 1 mm thickness. HDPE pond liner is among the most durable and long lasting polyethylene liner on the market. 1mm pond liner has is tough and flexible, with high resistance to chemicals and corrosion. It is the ideal geotechnical material for stormwater retention pond projects.

Case study

  • Location: USA
  • Product: 1mm Pond Liner
  • Purpose: Stormwater retention ponds

The stormwater retention pond is preferred solution used to collect runoff during heavy rains. BPM American client told us that they wanted to build a stormwater retention pond because their existing rainwater pipelines could not handle all runoff during the storm. Failure to handle runoff could lead to flooding, sinkholes and groundwater pollution. Parts of the southwestern USA are particularly prone to this problem because of their lower frequency of rainfall, but the rainfall is usually more intense.

HDPE Geomembrane pond liner for Stormwater Retention Pond Project in USA
40 mil pond liner for Stormwater Pond Project in USA


The stormwater retention ponds will be built next to commercial areas and communities, because the storm runoff rate of residential and commercial land is much higher than the net flow rate of natural undeveloped land. The design of The stormwater retention ponds includes more concrete and pavement, which leads to faster runoff, which in turn overloads urban rainwater pipes. So the stormwater retention ponds is the good choice here to solve this problem.

There are two aspects to the problems faced by customers in build retention ponds.

  1. Runoff from residential, commercial, and industrial areas may contain petroleum, pesticides, and other pollutants that need to be controlled or treated before entering the groundwater supply.
  2. The water seeping from retention ponds may transfer existing pollutants in the soil or groundwater.


To respond to the questions raised by customers, BPM recommend 40 mil pond liner that is best material for building stormwater retention ponds. For retention ponds, thickness 1.5mm pond liner is suitable. HDPE geomembrane liner is impermeable and can prevent water leakage. Pollutants in the runoff from residential, commercial and industrial areas are effectively isolated and will not penetrate deep into the groundwater to pollute the groundwater.

Installation of 40 Mil Pond Liner for Stormwater Retention Pond Project in USA

  1. Before laying at the bottom of the pond, check and measure the laying area. According to the measured data, transport the impermeable membrane with matching size to the corresponding position. When expanding the membrane, manually push the laying in a certain direction. Flat, straight, avoid wrinkles and ripples. The borders should be aligned neatly, and the two panels that need to be welded should be overlapped, and the overlap width should be controlled at about 15 cm.
  2. Before the pond is laid on the slope, check and measure the paving slope. According to the length and width of the material, transport the impermeable membrane to the anchoring ditch platform. When laying, push it from top to bottom according to the actual conditions of the site. The way. It should be extended from the high position to the bottom, and at the same time, it should not be pulled too tightly, and a margin of 5% should be left to prepare for local sinking and stretching. During the rolling process, it is stretched and stretched, which is consistent with the slope surface and is smooth, without protruding folds. The fan-shaped area should be cut reasonably so that the upper and lower ends are firm.
40 mil pond liner for Stormwater Retention Pond Projects in USA
40 mil pond liner for Stormwater Retention Pond in USA


HDPE geomembrane pond liner is made of high-quality polyethylene virgin material, the main component is high-density polyethylene, carbon black, anti-aging agent, antioxidant, ultraviolet absorber, stabilizer and other auxiliary materials, using the advanced fully automatic production equipment, and three-layer co-extrusion technology. All BPM HDPE geomemrbane products are produced in accordance with American GRI standards and ASTM test standards.

Due to its good tensile strength, high impact strength, impermeability, acid and alkali resistance, heat resistance, weather resistance, abrasion resistance, etc.. The 40 mil pond liner is often used to block and prevent permeation. It has been widely used in building construction. According to the size of the building, the construction unit can glue the impermeable geomembrane liner of the reservoir into a whole by the adhesive method or the hot melt welding machine welding method. The construction is convenient, the cost is saved, and the anti-seepage effect is good.

About BPM

BPM has been specializing in delivering one stop geosynthetics products and solutions to worldwide customers since its foundation in 2007. BPM had provided many types of effective and state of the art geomembranes, geotextiles, geocells, geosynthetic clay liners (GCLs), drainage boards, geogrids to over 81 countries. Our main customers are from Australia, France, Sweden, UK, Hong Kong, Hungary, New Zealand, Poland, Mexico, Ecuador, Brazil, Pakistan, Bangladesh, Thailand, Vietnam, Malaysia, Indonesia, Singapore, Philippines, Sri Lanka, India, UAE, Saudi Arabia, Qatar, Kenya, Ghana, Ethiopia, Somalia, Nigeria, South Africa, Swaziland, Mongolia, etc.