Thursday, May 3, 2012

Impact of Termiticide on Water Quality

Impact of Termiticide on Water Quality

Organization should conduct an environmental initial review on all their activities, products or services with the objective of identifying what are the environmental aspects associated with their activities

The environmental aspect shall be undertaken by a team of cross functional employees lead by the nominated manage representative.

There are various methods available which an organization can use for the identifying of the organization environmental aspects and from there determine significant environmental aspects based on severity criteria.

The use of termiticide for soil treatment control can have adverse impacts on the environment which may include water pollution in event unapproved termiticide was used. For list of approved termiticide regulated by the Singapore Environment Agency, check out Approved Termiticide Listing.

Here are some useful measures to help you prevent and control water pollution from the use of termiticide

 Measures To Prevent And Control Water Pollution From The Use Of Termiticide

1     Scope
This document sets out the minimum requirements for the prevention and control of water pollution from the use of termiticide. Pest control operator shall ensure that the requirements are complied with at all times.

2     Site Preparation
2.1   Determination of Ground Water Table
Test shall be carried out at site to determine ground water table. Soil treatment shall not be carried out if the ground water table is less than 0.5m below soil level. A pit of at least 0.5m depth shall be dug near the site where soil treatment is to be carried out to determine whether the ground water level is less or more than 0.5m from the ground. The ground water level measured from the ground level where soil treatment is to be carried out shall be the natural ground water level and not the artificially lowered level induced by dewatering.

2.2   Provision of Temporary Drainage
Temporary drainage of adequate capacity shall be provided around the whole area to be treated with an outlet at the lowest point. A sample sump shall be provided at the outlet drain for the monitoring of termiticide in the run-off.

2.3   Provision of Impervious Polyethylene Sheet
Impervious polyethylene sheet or its equivalent of sufficient quantity to cover the whole area to be treated shall be kept on site for stand-by use.

3     Chemical Preparation

3.1   Termiticide shall be prepared in accordance to the approved dosage.
3.2   Preparation of termiticide for application shall be carried out in such a manner that it would not be spilled/ discharged to the open drain or a public sewer.
3.3   Any wastewater contaminated with termiticide shall not be discharged into a septic tank, an open drain or the sewer. Such wastewater may be reused or disposed of properly by licensed toxic industrial waste collector.

4       Application Procedure

4.1    Pest control operator must ensure that the soil is not excessively wet (e.g. during or after rain) before carrying out the soil treatment. Soil treatment shall be carried out under good visibility condition.
4.2   Special care must be taken not to spray termiticide beyond the area to be treated.
4.3  Soil treatment and concreting shall be carried out on the same day.
4.4  Pest control operator shall not carry out soil treatment if it is likely to rain before the soil treatment is completed. However, if it rains during the course of soil treatment, measures must be taken to prevent the washing out of termiticide by rainwater.

5     Precautionary Measures

5.1  Every precaution shall be taken to prevent accidental spillage of termiticide. Spillage shall be mopped up with soil or other absorbent materials. The affected soil shall be added to the treated area or kept in plastic bags for disposal at the Ministry?s dumping ground.
5.2  All safety and environmental requirements in the Material Safety Data Sheet (MSDS) shall be complied with. Pest control operator shall brief all his workers of these requirements and ensure they comply with the requirements in the MSDS.

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