Erosion Control Co. Ltd can supply and install a range of fabrics that provide surface protection and both long and short term structural integrity.   It is important to note that when used in conjunction with Hydroseeding some fabrics will inhibit grass growth and moisture transfer to the seed. We also install Silt Fence and Super Silt Fence to TP90 standards acroos the upper North Island.

Erosion Control co have engineered a range of Erosion Control Socks and  filter mediums to best suit the requirements of each and every site.  Depending on your requirements we can supply prefabricated lengths or manufacture and install on site.

Download Our Socks & Wattles Brochure

The purpose of the socks is to intercept, filter and contain ‘dirty water’ on earthwork sites ensuring that any water leaving the sites meets local authority guidelines and regulations.  Erosion Control Socks are a practical solution that provides a sound alternative solution to silt fencing for smaller catchment areas.  Erosion Control socks also work effectively as check dams and for cess pit protection.

Erosion Control Co. Ltd have developed a series of Floc Socks for use on earthwork and construction sites to be used in conjunction with other sediment control methodologies for small, medium and large projects. Either flocculants or coagulants can be tailored specifically to soil types, water volume and required treatment levels.  As water passes through the sock the flocculants are dispersed through sediment laden water resulting in the clumping and dropping out of fine particles and significantly improved water clarity.

Erosion Control now offers Ground Protection Mats for hire or for sale.

Features and Benefits:

• Approximate size: 2400 x 1200 x 13mm
• 100% recyclable MHDPE. Made in NZ from known source post-production recycled waste
• Very strong and durable, made using compression moulded process
• Each side has a different grip profile with 8 moulded in handles
• Holes for pegging down to stop movement
• Ideal as protection for soft ground or lawn areas from heavy machines
• Great as a temporary driveway or for access ways
• Allows site access for machinery, vehicles, and equipment working in very boggy conditions
• Reduces the need for extracted resources such as gravels
• Prevents costly damage to sensitive surfaces

Erosion Control Co Ltd’s Hydrohay™ is another of our innovations engineered to offer additional stabilisation where it is    needed most.  Our unique formula of hydromulch and sterile hay fibers forms a protective barrier against the forces of erosion until full vegetation cover is achieved.  Hydrohay™ is the ideal solution for swale drain, around culvert and berm areas.

Erosion Control Co. Ltd’s Liquid Soil™ is our premium hydroseeding product specifically engineered for areas with poor quality soils, to optimise vegetation establishment and longevity.  Our unique combination of organic hydromulch, composts fertilizer and tackifier ensures we consistently outperform all other hydroseeding applications.

Erosion Control Co Ltd have recently added lamella, or inclined plate, clarifiers to their arsenal of dewatering equipment. These clarifiers provide a large settling area within a relatively small footprint making them the perfect option for space constrained sites. The inclined plates in the units minimise the distance suspended particles need to travel to drop out to the bottom, promoting sedimentation and increasing overall efficiency.

Erosion Control can design a full dewatering system utilising a lamella clarifier, pre-settlements tanks, flocculent dosing and pH adjustment. These systems can be fully automated to allow clients to work on what they’re best at while not having to worry about water issues.

Download the Silt Stopper Brochure

We also offer our full support and expertise to clients using our systems.

Erosion Control Co Ltd’s Straw Wattles comprise a uniform compacted 9″ or 12″ tubular length of either Meadow Hay or Barley Straw encased in a durable, photodegradeable netting and can be manufactured to lenghts of up to 12m.  Straw Wattles are a practicle and extremely effective option to assist with soil stabilisation, sediment retentionand vegetation establishment. 

Download our Socks & Wattles Brochure

Their widespread application has proved an effective and economical solution to erosion control issues around earthworks.  When applied to slopes as SIDs (slope intervention devices) running along the contours, Wattles act as sediment barriers whilst reducing sheet flow which would otherwise lead to rilling and the formation of gullies.

Erosion Control supply a range of products for coagulation and flocculation of suspended solids. We have expertise in all areas of flocculation ranging from sediment retention ponds and common clays to peats and other contaminants you may wish to remove from your water.

Polyaluminium chloride (PAC) is the go to chemical in New Zealand currently for use in rainfall activated systems on earthworks sites. PAC is a strong coagulant which uses aluminium ions as its active ingredient. Clays are generally negatively charged with clay particles repelling other particles (two negative charges will repel each other like two magnets) preventing settling. Aluminium ions are positively charged. When the aluminium reacts with the clay these charges neutralise each other leading to a electrically neutral particle. The particles will no longer repel each other and will therefore settle. Mixing is useful to get efficient settling as the particles will collide and bind to each other, causing flocculation to occur with the generation of “flocs” which are larger and heavier than the individual particles. 

Alternative chemicals such as PolyDADMAC have also proven useful on difficult to treat clays and soils. PolyDADMAC is an organic polymer which acts as both a coagulant (it carries a positive charge) and a flocculant with its long polymeric chains able to bind multiple particles together.

Erosion Control has recently teamed up with Vital Industries to bring a new alternative flocculation product to the market. EcoSuperfloc is a Chitosan based flocculant and is a greener  and more environmentally friendly alternative to PAC. Chitosan is produced from Chitin which is found in the shells of crustaceans and as such is produced from a renewable resource.

Erosion Control is also able to offer any support in regards to chemical flocculation in any industry. Give us a ring if you have any questions.