Surface Water Drainage Reporting – Essex

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Surface Water Drainage Reporting – Essex

Acting on instructions from a repeat client we have prepared a number of drainage reports and plans for a project in Thurrock , Essex.

The work included a BRE 365 Report, A Surface Water Drainage Strategy and a Detailed Drainage Plan.

Surface water drainage requirements have become more and more onerous over the last few years, and you can expect a good deal of detail to be required at planning.

We used falling head test results from borehole soak-away tests to derive a required soak-away size in accordance with BRE 365.

We were then able to work up a detailed drainage scheme, include attenuation volumes, and drainage layout, drainage details and invert / cover levels.

BRE365 Soak-Away Testing in Gloucester

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BRE365 Soak-Away Testing in Gloucester

SWEL recently received a phone call from a company in Gloucester who needed a BRE 365 soak-awat report for a planning application. They happened to have a digger and a water supply on site, so we attended site on the same day to take measurements etc. and produce a report (the following day).

We also included some surface water drainage strategy in the report, and made a robust conclusion that will hopefully see that the planning related matters are satisfied.

A Large Excavator

The digger used was really rather karge for the job, we would normally use a 2.5 ton digger. But in this instance we had a 20 ton beast, with a 1.5m wide bucket. Needless to say the holes were quite large.

If you require some soak-away testing undertaking we can help out, maybe not on the same day as we did here but we will do our best.

Foul and Surface Water Drainage

Desktop Study – Margate

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Desktop Study – Margate

Southwest Environmental Limited has recently been commissioned to undertake a Desktop Study Report in Margate, UK (there is one in the USA too). 
The report will use maps, historical information and other data to make a review of the site in terms of likely hood of contaminated land. 
We are providing the report on a quick turnaround in less than 5 working days. 
SWEL have been providing quality desktop reports to industry and individuals for over a decade.
This report is for a residential development. 

Compliance Reviw at Pharmaceutical Company – Woking

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Compliance Review at Pharmaceutical Company – Woking

 

Southwest Environmental Limited have recently visited a Pharmaceutical Company near Woking, a Town situated to the Southwest of London. 
We were invited to attend site so as to make a review a specific processes and make comment on whether they were appropriate. 

There was the over all site process and classification to consider, and also the waste streams created on site, and consideration of compliant disposal routes. 
We completed our review and provided a comprehensive write up of our findings within 3 working days of the site visit. 
Southwest Environmental Limited has been advising complex industries on compliance for over a decade, we work hard to understand you process so we can supply the best possible advise.

Odour Impact Assessment – Devon

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Odour Impact Assessment – Devon

Southwest Environmental Limited have recently issued an Odour Impact Assessment report for a large poultry unit in Devon.
The report accounts for the placement of a large number of broiler (for meat) chickens in two sheds. 
There were various receptors near site that are sensitive to odour the limit being set at 3.0 eOU/m3.  
We use an AERMOD model to derive a Annual 98th Percentile Mean. 
The model use source inputs, which we referenced from the SCAIL report and receptors  are chosen, based on  proximity and sensitivity.

Ammonia Assessment – Cornwall

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Ammonia Assessment – Cornwall

Southwest Environmental Limited have recently completed an Ammonia Assessment for an an agricultural building in Cornwall. 
The building is a large modern dairy unit with  associated yard areas and slurry management infrastructure. 
The brief from the client was to conduct a SCAIL Assessment so as to establish whether the project would screen out using this method of preliminary assessment. The project did not screen out, showing an exceedance of  ammonia deposition and concentration at nearby sensitive ecological receptors. 

Following this we constructed am AERMOD model to incorporate all features of the proposed development, and determined deposition and concentrations at the receptors that did not screen out in the SCAIL Assessment.
Our model return ed a positive result and we have submitted the report for assessment by Natural England.  

Flood Risk Assessment – Battersea – London

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 Flood Risk Assessment – Battersea – London

Acting on Instruction from an Architect Southwest Environmental Limited have begun preparation of a flood risk assessment in Battersea, London.

The proposed development is for a property refurbishment with a basement extension. The flood risk assessment will look at fluvial, tidal and surface water flooding risks.

We will also make an appraisal of flood defences in the area. Most of the flood defences along the Thames are being upgraded to account for climate change, and as such provide a 1:1000 year protection levels provided they are no breached.

The proposed development does not include sleeping of primary living accommodation at basement level, this is advisable as the Environment Agency will Ilkley object to sleeping accommodation in basements, when in Flood Zones 2 or 3.

Noise Assessment – Camden – London

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Southwest Environmental Limited  have been asked to prepare a Noise Assessment for a site on Camden High Street.  

Camden High Street is a short stretch of road (less than 500m long, forming part of the A400) in Camden Town, in north-northwest London.

KOKO, the former Camden Palace is in close proximity to the site and as such has been considered as a source of noise in the assessment. That being said planning conditions relating to the refitting and extension of KOKO see very strict noise control limits that should ensure minimal impact if properly enforced.

The report was assembled using secondary data from numerous baseline surveys that had been under taken in the area.

We then derived an appropriate background noise level, and compared this to British Standard noise level criteria, in accordance with BS 4142:214, the prevailing background sound level is not necessarily taken to  be the lowest recorded values, but rather the level that best represents the typical background  sound level during a defined period.

If you have any noise related planning issues, then please call the office for a no obligation discussion.

Site Investigation – Bristol

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Site Investigation – Bristol

Just to the south of Bristol actually in Thornbury!

This was a geotechnical investigation. We needed to provide geotechnical information for foundation design.

The site was to the left (or west) of a establishes educational site . The coring went well, and there was good core recovery, once we were in competent rock.

The results will be written up in a report, with load bearing calculations provided to the client.

If you require a site investigation in Bristol, London, Exeter or elsewhere please give us a call and we will get it sorted out for you.

Sewage Treatment Plant Decommissioning – Devon

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Treatment Plant Decommissioning – Devon 

Acting on instructions from a property owner in Bishopsteignton, Devon, Southwest Environmental Limited have been commissioned to draft a Decommissioning Strategy for a Sewage Treatment Plant.

The plant was around 30 years old, and used to treat water prior to discharging it to a river (surface water). However, around 10 years ago the development was hooked up to the mains sewers, and the treatment plant is now no longer required.

Although there is very extensive guidance available for the decommissioning of underground structures in the “Blue Book” for petrol filling stations, guidance for the removal of sewage related tanks, is some what limited. The Binding Rules for example give very scant advice, and further information given in PPG27 has now been withdrawn with no replacement made.

In this instance we authored a removal strategy based on international guidance, parallel sector guidance and review of case studies.

If you would like an opinion on decommissioning of a septic tank, treatment plant read bed or other foul water treatment system, then please contact us, and we provide a no obligation initial appraisal. We provide advice and reporting for a wide range of drainage systems.