Contaminated Land Assessment – Clevedon

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Contaminated Land Assessment  – Clevedon 

Southwest Environmental Limited were approached by a client who wanted to check the ground quality of a site that they were planning to purchase. The site was a petrol station, and as such there was potential for the site to be contaminated.

Typical Petrol Station c. 1960.

All available secondary data was collected in the form of a Desktop Study, and this concluded that it would be prudent to undertake some soil sampling. Samples were taken and tested, and the ground was also checked for any sign of VOCs emanating from hydrocarbons.

These were then used in a quantitative risk assessment for contaminated land .

The reporting was carried out within the allotted time frame, and on budget.

Flood Risk Assessment – Exeter

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Flood Risk Assessment  – Exeter

Southwest Environmental Limited have recently carried out a flood risk assessment for a site in Exeter, Devon. The site was very close to the river exe flood relief channel and as such it was important to establish whether it was indeed possible to build a dwelling at the location that would:

  1. Mitigate Against Flood Risk 
  2. Remain in Keeping with Surrounding Buildings
The problem is that is flood depths are too great then a building ground floor use may have to be limited to no residential use. If neighbouring buildings are “normal” houses then the proposed structure may look out of place, and this can cause problems when in planning .
Topography Indicates a Level Area

The Site is Well Within Flood Zone 3

Flood Depths were Fairly Deep on Site
In this instance SWEL were to prepare a report to set before the Environment Agency for scrutiny outside of formal planning. In this way we can check that the project is viable from a flood risk point of view prior to proceeding with planning proper and all the extra time and expense that that involves. 

Lighting Assessment SSSI

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Lighting Assessment SSSI 

SWEL have undertaken a Lighting Assessment in Rickmansworth, the site is to be developed, and lighting impact were required to be assessed. A thorough baseline study was made with a quantitative assessment of spill.

A  twilight survey was made to identify nearby light pollution sources. 

Riveting – Existing light fittings were surveyed. 

The Lighting Assessment Report was published in good time and was well received by the local planning authority. 

Contaminated Land Advice during Corporate Acquisition

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Contaminated Land Advice during Corporate Acquisition

SWEL were approached by a company in Cardiff who were in the process of selling to a large multi national. The purchaser was seeking to drive down the acquisition cost using poor land quality as justification.

SWEL were called in to justify whether this was the case.

The purchasers had engaged their own consultants to establish ground quality, and it was observed that they were acting in line with appropriate guidance.

The land in question although of lowered quality was suitable for end use / continued use and as such the the price should not have been affected.

Contaminated Land Cardiff

Sunlight Daylight Assessment

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Sunlight & Daylight Assessment – Epsom

Acting on instruction from a repeat client in the Epsom area, Southwest Environmental Limited are undertaking a Sunlight and Daylight Assessment for a prestige development of 2 no. 6 bedroom houses, which occupy the plot of a single smaller dwelling.

The scheme makes very good use of the space available, but unfortunately in the first instance the height of the buildings was a little too great, as it caused loss of daylight to a neighbouring kitchen window that was beyond the loss allowable under BRE 209.

Recommendations were made that involved altering the pitch of the roof, and allowing for a flat roof area, where it would not impact of the character of the property. This reduced overshadowing to the point where, the scheme became acceptable.

The reduction in height did not result in any loss of usable internal space, although it did result in some loss of loft space, which may have been suitable for conversion in the future.


Environmental Consultants London

Ecoli Testing – Sewer Flooding

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Ecoli Testing –  Sewer Flooding

Southwest Environmental have been commissioned to undertake verification testing for the presence of  coliform, post clean up of a sewer spill.

SWEL were contacted by a landlord who was concerned with the persistence of pathogens post clean up of a sewer blockage.

The sewer blockage was caused by an item of clothing becoming lodged in the sewer of the ground floor sewer system of a block of flats, this cause sewer water from the above floors to spill out in to the ground floor flat.

The ground floor flat was flooded to a depth of 2 or 3 inches with sewage emanating from above floors. Significant damage was done to finishing, with staud partitioning and some fiberboard flooring being replaced owing to water damage.

The entire floor area was then steam cleaned and all surfaces treated with a disinfectant. It was at this point SWEL were asked to take samples and acquire results.

The samples were sent for propagation testing at a respected laboratory, so as to deduce cfu (colony forming units) of Ecoli.

These results will then used to inform conclusions of a verification report.

Environmental Consultants London

Flood Risk Assessment – Dorset

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Flood Risk Assessment – Dorset

Acting on instruction from an architects in dorset, SWEL have been commissioned to carry a flood risk assessment, for a barn conversion.

Flood Risk to Barn Conversion

The flood risk assessment will be based on third party data, which will indicate flood depths in the area, and these flood depths will be used to inform decisions relating to finished floor level and safety of occupants.The flood risk assessment will be submitted to North Dorset District Council, who will be required to present the report to the Environment Agency as statutory consultees.

All being well, the EA will agree with the content of the report, and they will not raise an objection. The project will not be subject to the sequential test as it is a conversion.

Flood Risk Assessment

Flood Risk Assessment for Hotel – Bristol

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Flood Risk Assessment for Hotel – Bristol

Acting on instructions from Global Client Southwest Environment have undertaken a Flood Risk Assessment for a development site in Bristol, UK.

The project encompassese the retention of a sporting facility and the extension of the facility to include a 55 bedroom hotel and several eateries.

A mixed use development like this is ideal for a site within a high risk flood zone as it allows for low vulnerability uses on ground floors and and high vulnerability uses on the upper floors.

This site however, although surrounded by high risk areas, was at low risk of flooding and also had a convenient escape route in the form of a raised flyover, so as to provide an evacuation route in case of a flood.

Flood Risk Assessment Bristol

Planning Appeal – South Gloucestershire

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Planning Appeal – South Gloucestershire

Southwest Environmental were engaged by a individual developer in the South Gloucestershire area. SWEL had previously supplied a Flood Warning and Evacuation Plan, and also a Flood Risk Assessment for the Site.

The planning application was refused on the grounds that the building character was not applicable to the area in which it was built. Which was clearly wrong, as the settlement has not specific character by which to compare the design of the building.

The other point for refusal was the failure of the site to pass the sequential test. Whilst some LPAs release excellent guidance for conducting the sequential test, the LPA in this instance were insisted on preventing the use of our normal assessment criteria (for determining reasonable alternative sites) whilst not suggesting any other criteria by which the site could be assessed!

To lead to a gridlock in the process, and despite us using our standard method for determining the sequential test, which was favourable, and has been widely accepted nationwide for 9 years the application for refused permission.

The appeal has now been lodged backed up by a 1800 word appeal statement, which sets out the grounds for appeal.

Planning Consultants Bristol

Noise Impact Assessment – Grays

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Noise Impact Assessment – Grays

Acting upon instructions from client, Southwest Environmental have Produced a noise impact assessment according to British  Standards.
 

The noise assessment was carried out for a self storage warehouse project in the greys area the main impact considered within the report with traffic movements. Unlike typical warehousing we cannot expect large volumes of heavy goods vehicle traffic and research in noise levels were based around car movements rather than heavy goods vehicle movements another consideration was that of the 24 hour access required for self storage warehouses SWEL used data from various self storage associations to build a profile or anticipated vehicle movements the site is within an industrial area that there are residential units quite close to the eastern boundary of the site.

It was found that noise levels were as acceptable when assessed in line with the relevant British standards monastery was carried out over 24 hour period prior to the calculations being performed.

Noise Impact Assessment London