The Risk Management Tool Box Blog

Preventing Pollution During De-watering

Graham Marshall - Wednesday, January 25, 2012

It is often necessary for some organizations, such as power and utility companies, and their contractors to de-water underground ducts and chambers prior to access for maintenance or other works.

The de-watering requirements in such cases tend to be of low volume but they occur widely.

Unfortunately, water that has accumulated within a duct or chamber may often be contaminated with substances such as oil, silt and dissolved chemicals.

 All of those hazardous substances can adversely affect water quality if they are not disposed of appropriately.

In order to protect rivers and groundwater, it is therefore essential to exercise good risk-management when de-watering any location.

The UK Environment Agency has produced an excellent Pollution Prevention Guide (PPG-20) in order to assist those engaged in the de-watering of underground ducts and inspection chambers.

To access a free copy of the PPG, simply click here.

Preventing Pollution Near Water Sources

Graham Marshall - Tuesday, January 17, 2012

If you are planning works in water; or close-to or over water, this UK Environment Agency Pollution Prevention Guide (PPG-05) provides advice on how to make sure your work meets legal requirements and prevents pollution.

 To view the guide, simply click here.



Masonary Bunds for Oil Storage Tanks

Graham Marshall - Thursday, January 12, 2012

Another post today about the safety issues surrounding above-ground oil storage tanks.

Today I'm linking to a UK Environment Agency Preventing Pollution Guide (PPG) that addresses the requirements for construction of masonary bunds around tanks.

This PPG provides useful information for owners of tanks with dimentions less than 3.5 metres wide by 1.2 metres in height when constucting masonary spill bunds. 

These types of bunds and tanks are frequently found in domestic and small to medium size business locations.

To access your free copy of the PPG on concrete bunding for small oil storage tanks, simply click here.

Guideline on Concrete Bunds for Oil Storage Tanks

Graham Marshall - Wednesday, January 11, 2012

Following-up on yesterday's post on above-ground oil storage tanks, today I'm linking to a UK Environment Agency Preventing Pollution Guide (PPG) that addresses the requirements for construction of concrete bunds around tanks.

The guide provides useful information for owner of tanks with dimentions less than 3.5 metres wide by 0.9 metres in height. 

Such oil storage tanks are frequently found in domestic and small to medium size business locations.

To access your free copy of the PPG on concrete bunding for small oil storage tanks, simply click here.

Safely Storing Oil in Above-ground Tanks

Graham Marshall - Tuesday, January 10, 2012

The UK Environment Agency has produced a Pollution Prevention Guide (PPG-02) which advices on how to store oil safely in above ground oil storage tanks and comply with UK regulations.

The PPG is specifically written for domestic, and small or medium sized enterprizes (SMEs) involved in commercial oil storage and it excludes oil refineries and larger distribution depots.
Applying the pollution prevention guidelines will help domestic homeowners and SMEs comply with the requirements of the Control of Pollution (Oil Storage) (England) Regulations (2001), the Control of Pollution (Oil Storage) Regulations (Northern Ireland) 2010, and the Water Environment (Oil Storage) (Scotland) Regulations (2006).

They will assist owners of above ground oil storage tanks to maintain them safely and to minimize the risk of causing pollution.

They’re good practice advice for tank owners and users but may also be of use to others who store oil.

The PPG-02 on oil storage addresses the following issues:

•  Installation of new or replacement tanks;

•  Compliance with legal requirements for existing tanks; and

•  Current good practice for managing oil storage tanks.

A free copy of the Pollution Prevention Guide is available by clicking here.

Decommissioning Underground Storage Tanks

Graham Marshall - Sunday, December 18, 2011

Unfortunately, there is a high risk of pollution during the decommissioning and removal of underground storage tank (UST) systems which previously contained petrol, diesel, fuel oil, aviation fuel, waste oil, domestic heating oil and other potentially polluting materials such as organic solvents.

A UST system is any tank, associated underground pipework, and ancillary equipment that is completely or partially below ground level.

That definition includes any tank that is partially above ground but covered with earth, and any tank in a vault or basement where its base and sides cannot be inspected.

If it is possible to inspect all the base and walls of the tank, it is considered to be an above ground storage tank.

As per our standard hierarchy of hazard control, elimination of the hazard is always the most favoured option.  For that reason, and for the purposes of pollution prevention, it is best to store potentially polluting substances in above ground accessible tanks.

But since this "elimination" option is not always available, the UK Environment Agency has prepared this useful Pollution Prevention Guide (PPG-27) which address many of the safety issues in decommission and removing USTs.

To access the pollution prevention guide on underground storage tanks, simply click here.

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