Ocean HDPE Liner 1500 Micron for a Water Storage Pond in Balaghat, Madhya Pradesh

Ocean Non Wovens supplied 10,800 sq m of Ocean HDPE Liner 1500 Micron to Ethan Natural Bio-Fuel Private Limited for a water storage pond in Balaghat, Madhya Pradesh. An HDPE liner for a water storage pond does one job: it stops the water soaking into the ground, so what is pumped or collected into the pond stays there until it is needed.

Project snapshot

Storing water through Balaghat’s dry season

Balaghat district lies in the south-east of Madhya Pradesh, bordering Maharashtra and Chhattisgarh. The Wainganga river runs through the district on its way south to join the Wardha and form the Pranhita, a tributary of the Godavari.

The district is not short of rain overall. Official normals put annual rainfall at roughly 1,300 to 1,500 mm (the Central Ground Water Board gives 1,294.5 mm; ICAR-CRIDA’s district plan gives 1,471.6 mm), but about nine-tenths of it falls in the June to September south-west monsoon. From October to May there is little rain, so any facility that needs water year-round has to store it.

An unlined pond loses part of that store to seepage through its floor and banks, and the loss continues for as long as the pond holds water. How fast depends on the soil, but on most ground it is enough to matter over a long dry season. A welded geomembrane takes seepage out of the water balance, leaving evaporation as the main loss.

How an HDPE liner holds water in a storage pond

HDPE is the usual choice for pond liners because welded panels form one continuous barrier. An intact sheet is, for practical purposes, impermeable, so leakage from a lined pond comes from holes and bad seams rather than through the material. The properties that matter in a pond:

• UV resistance: carbon black in the sheet protects it on exposed slopes above the water line.
• Chemical stability: HDPE is inert and does not leach into stored water. If the water is for drinking, specify a resin grade certified for potable contact.
• Weldability: panels are joined by hot-wedge welding, and the seams can be tested on site before the pond is filled.
• Low upkeep: a liner with sound seams needs inspection rather than regular repair.

Why 1500 micron for a water pond

Farm and water storage ponds are often lined with 500 to 1000 micron HDPE. A 1500 micron (1.5 mm) sheet gives more margin against puncture from stones in the subgrade, damage during desilting and cleaning, and animal or vehicle traffic along the edges, and it is easier to weld consistently. Under GRI-GM13, a 1.5 mm smooth HDPE sheet must have a minimum puncture resistance of 480 N and a tensile break strength of 40 kN/m. In India, HDPE lining geomembranes are specified under IS 16352.

Good practice when lining a pond with HDPE

Most liner failures trace back to installation rather than the sheet. On a pond of this kind, the sequence a site engineer should expect is:

1. Subgrade: trim and compact the floor and slopes to a smooth surface, and remove stones, roots and debris. Where the ground is stony, lay a non woven geotextile cushion first.
2. Deployment: unroll panels down the slope rather than across it, avoid dragging the sheet, and leave slack, because HDPE expands in the sun and contracts when it cools.
3. Seaming: join panels with dual-track hot-wedge welds, and use extrusion welding for patches, corners and pipe boots. Weld only on clean, dry sheet.
4. Testing: pressure-test the air channel of dual-track seams (ASTM D5820) and vacuum-box test extrusion welds (ASTM D5641). Weld and peel-test a trial seam at the start of each session.
5. Anchoring: bury the liner edge in a backfilled anchor trench set back from the crest, so wind and water movement cannot pull the sheet into the pond.
6. Filling: fill an empty pond gradually, and keep vehicles and livestock off the exposed liner on the banks.

On delivery, check roll labels against the order (grade, thickness, roll dimensions), ask for the manufacturer’s test certificate for the batch, and store rolls flat on clean ground away from sharp objects.

Frequently asked questions

What thickness of HDPE liner is used for a water storage pond?

Ponds are commonly lined with 500 to 1500 micron HDPE. Thinner grades suit small farm ponds on well-prepared ground; 1000 to 1500 micron is chosen where the subgrade is stony, the pond is large, or the banks see cleaning equipment and traffic.

Does an HDPE pond liner need a geotextile underneath?

Not always. On smooth, stone-free ground the liner can go directly on the compacted subgrade. On stony or gravelly ground, a non woven geotextile cushion under the liner protects it from puncture.

How are HDPE liner seams tested on site?

Dual-track hot-wedge seams are tested by pressurising the air channel between the two welds (ASTM D5820). Extrusion welds on patches and details are tested with a vacuum box (ASTM D5641). Trial seams are cut and peel-tested before production welding starts.

Is HDPE safe for storing water?

HDPE is chemically inert and is widely used for water storage. For drinking water, specify a resin grade certified for potable water contact.

If you are pricing a similar pond, our article on budgeting geomembrane cost for a pond shows why the order is larger than the water surface and which costs to carry beyond the sheet.

About Ocean Non Wovens

Ocean Non Wovens supplies HDPE liners and other geosynthetics for water storage, industry and infrastructure across India. In the same district, Ocean supplied geocomposite for an NHAI road project in Balaghat, and elsewhere in Madhya Pradesh it lined the 18,000 sq m water retention project at Chhindwara. To match a liner grade to your pond, contact the Ocean team.