 |
 |
Dear Paul, I agree that the importance of good soil colour descriptions, and their significance, is something that should be more widely understood, and the idea of a corresponding technical note is a good one. However, I would say that the chapter on 'Soil Colour' in David Norbury's excellent book 'Soil and Rock Description in Engineering Practice' already fits the bill to a large degree. It is brief (seven pages) yet covers most of what needs to be known. I appreciate that the chapter is contained within a book that needs to be purchased, but I would suggest that this should be a standard text in any office that organises and executes site investigation works. That said, if you do think production of a technical note is worthwhile please include a note on the potential importance of colour in providing an indication of geochemical and weathering processes, something I don't think has been mentioned in this discussion (I would be happy to contribute). Regards, John Heneghan On 10 July 2018 at 12:29, Paul Nathanail <[log in to unmask]> wrote: > Dear all > > > > this topic has gone full circle - a bit like a colour wheel ;-) > > > > it has raised some serious issues and divergent perspectives. > > > > I wonder if there is scope for a short technical note on soil colour… if > anyone would like to collaborate on drafting such a short document (2-3 > pages is all I have in mind) I have set up a google doc. > > > > If anyone would like to contribute (and be credited as a co author) then > please email me and I will share the document with you so you can work on > it. I proposed this as a short sharp exercise over the next two weeks… > > > > @Sophie - feel free to join in and in any event thanks for kick starting > this ! > > > > cheers, > > > > > > Paul > > > > *From:* Contaminated Land Management Discussion List [mailto: > [log in to unmask]] *On Behalf Of * > [log in to unmask] > *Sent:* 10 July 2018 11:21 > > *To:* [log in to unmask] > *Subject:* Re: Soil colours > > > > I would disagree that colour is of limited use in contamination assessment. > > > > A decade or so ago I was preparing a remediation plan for a site. The made > ground had variable contaminant levels with occasional apparently random > GAC exceedances (which however were not calculated to be statistical > outliers) for one of the metals (don’t remember which !) > > > > Fortunately the trial pits had been properly logged by a geotechnical > engineer and there was an apparent correlation between the exceedances and > a light grey coloured soil. > > > > We used the colour of the material as an indicator during delineation > sampling which confirmed that the grey colour was associated with the > exceedances and were able to base the remediation plan on selective > excavation of the grey soil. > > > > I recall that this enabled a significant reduction in volumes and costs. > > > > > > > > Regards > > > > Frank Westcott > > > > *west**enviro**.com* <http://www.westenviro.com> > > Technical Solutions for Sustainability and Brownfield Development > > > > Magnolia House, 15a Fore Street, Roche, St Austell, Cornwall PL26 > <https://maps.google.com/?q=15a+Fore+Street,+Roche,+St+Austell,+Cornwall+PL26&entry=gmail&source=g> > 8EP > > 0330 330 8015 > > 07973 616197 > > [log in to unmask] > > > > This e-mail may contain privileged and confidential information and/or > copyright material which is intended only for the addressees named above. > Access to this email by anyone else is unauthorised and copying, > distribution > > or any action taken in reliance on it is prohibited and may be unlawful. > > > Westenviro does not warrant that any e-mail messages and attachments > are free from viruses or other defects and accept no liability for any > losses resulting from infected email transmissions. > > > > On 9 Jul 2018, at 19:50, Marc Fawcett <[log in to unmask]> > wrote: > > > > Fully agree with you Chris. > > > > I’ve yet to find a site where colour has come in useful expect for the > obvious ones like dye works / gas works. But simple descriptions would work > in these situations. > > > > Yes if it’s bright fluorescent purple it’s probably an indication that > it’s different - than that brown soil next to it... but useful for anything > else than that?... probably not.... > > > > Sometimes people think too much. > > > > From experience you’re better looking at changes in vegetation type and > colours to indicate contaminates likely location and spread - then dig it > up and test it! > > > > > > > > *Marc Fawcett *BSc FGS MIAEG > > *Director* > > > > *BETTS GEO* > > *Specialists in Geotechnical and Geo Environmental Engineering* > > Old Marsh Farm Barns, Welsh Road, Sealand, Flintshire, CH5 2LY > > > > CHESTER - 01244 288179 > > ALTRINCHAM - 0161 6131531 > > > > [image: linked in icon test_colourized_2_cropped_18pix] > <http://uk.linkedin.com/in/marcfawcett> [image: blog icon > test_colourized_2_cropped_18pix] <http://www.betts-associates.co.uk/blog> > > > > [log in to unmask] > > www.betts-associates.co.uk > > > > CIVIL | STRUCTURAL | GEO-ENVIRONMENTAL | HYDROLOGY | FLOOD RISK MANAGEMENT > > SUDS | STRUCTURAL SURVEYS | PARTY WALL DUTIES | INFILTRATION | GEOTECHNICAL > > > > Please consider the environment before printing this email. > > > > ELECTRONICALLY TRANSMITTED INFORMATION > > This electronic transmission is strictly confidential and intended > solely for the addressee. It may contain information which is covered by > legal, professional or other privilege. If you are not the intended > addressee, you must not disclose, copy or take any action in reliance of > this transmission. If you have received this transmission in error, please > notify us as soon as possible. All emails transmitted by Betts Associates, > Betts Geo or Betts Hydro are virus checked. This does not guarantee that > transmissions are virus free. Reference should always be made to the hard > copy of any electronically transmitted files. Electronic data does not > constitute contract documentation. Use of the content of our files is at > your own risk. You remain responsible for anything produced using all or > part of the data supplied. > > > > > On 9 Jul 2018, at 17:56, Chris Eccles <[log in to unmask]> > wrote: > > I would disagree with using Munsell colour charts as the choice of the > colours is somewhat subjective and not helpful to contamination > assessment. Deciding which of the 325 colours in the charts takes a lot of > time for limited or no benefit. The cost of these charts is relatively > high for what I believe is a hindrance to people doing soil description. > Who knows what" Gley 8/5G" means and what difference is that to "Gley > 6/10Y" or "5YR 5/8"? I recommend just sticking to the colours in > BS5930:2015 (plus cream and orange) as there are plenty to choose from. If > you want a colour chart use the colour chart on David Norbury's Website > which are the Pantone colours used by professional printers, see > > http://drnorbury.co.uk/wp-content/uploads/2015/08/Colour-Chart.pdf > > Colours can be indicative of contamination but most of the time there is > no link from colour to contaminants other than the relatively common > hydrocarbon contamination or if you are in Widnes (and parts of Glasgow > etc) the cream and yellowish brown colours can be Galligu. Bright colours > and unusual colours can be indicators of contamination so you can add > another sentence after the main description to add additional information > if you think it is helpful. Unusual colours observed are usually not > indicative of a specific contaminant as there is often a cocktail of > different natural materials and anthropogenic materials present. > > Oh, "Gley 6/10Y" is known to me as "grey" and "5YR 5/8" is "orangish > brown." > > Regards > > Chris Eccles > Director > TerraConsult Ltd > 01925 291111 > > -----Original Message----- > From: Contaminated Land Management Discussion List [ > mailto:[log in to unmask] > <[log in to unmask]>] On Behalf Of Philip Wilson > Sent: 09 July 2018 16:11 > To: [log in to unmask] > Subject: Re: Soil colours > > Use a Munsell colour chart to avoid ambiguity ?? > > http://drnorbury.co.uk/soil-and-rock-description-in- > engineering-practice/field-guidance-tables-for-soil-and-rock-description > > > > Phil Wilson > > Phil Wilson Bsc CEng FICE > Head of Geotechnics & Geo- Environmental > > Tel 01432 263333 > Mob 07985 298874 > > www.ems-geotech.co.uk > ● Asbestos Surveys, Consultancy & Removal ● Contaminated Land > Investigations > ● Geotechnical Investigations ● Environmental Consultancy > > P Before you print think about the ENVIRONMENT > > Follow us on > > > For our standard terms & conditions of business or for more information > regarding our services visit www.ems-asbestos.co.uk > > The information contained in this message and any attachments is > confidential and may be legally privileged. It is intended only for the > addressee. Access to this e-mail by anyone else is unauthorised. If you > are not the intended recipient, any disclosure, copying, printing or > distribution is prohibited and may be unlawful. Please advise the sender > immediately if this message has been transmitted to you in error. Any views > or opinions contained in this message are those of the author only and do > not necessarily represent the views or policies of Environmental Management > Solutions Ltd (EMS). EMS is a company registered in England and is also > registered under the Data Protection Act 1998 with the Information > Commissioner’s Office. EMS values your privacy at all times. > > > > > -----Original Message----- > From: Contaminated Land Management Discussion List [ > mailto:[log in to unmask] > <[log in to unmask]>] On Behalf Of Sophia Norfolk > Sent: 05 July 2018 12:55 > To: [log in to unmask] > Subject: Soil colours > > Dear all, > > Thank you to those who have recently taken part in my questionnaire - the > results are very interesting! > > I've been working through some of the questions and many of you have said > that describing colour is difficult during logging. As part of my research > to standardise colours, I have been researching different colours that can > be present within soils. If anyone has encountered interesting or unnatural > colours within soils during a ground investigation due to contamination or > other sources and knows what has caused the colour, I'd be very interested > in including it in my project. Any pictures you have will also be very > helpful. > > > Kind regards, > > Sophia > > ######################################################################## > > To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the > following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1= > CONTAMINATED-LAND-STRATEGIES&A=1 > > ######################################################################## > > To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the > following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1= > CONTAMINATED-LAND-STRATEGIES&A=1 > > TERRACONSULT - WASTE MANAGEMENT, GEOTECHNICAL, CIVIL & BROWNFIELD > ENGINEERING > > Email: [log in to unmask] > Website: www.terraconsult.co.uk > > TerraConsult St Helens > Tel: +44 (0)1925 291111 > Bold Business Centre, Bold Lane, Sutton, St. Helens, WA9 4TX > > TerraConsult Colchester > Tel: +44 (0)1206 585600 > Dugard House, Peartree Road, Colchester, Essex, CO3 0UL > > This email and any associated files, is intended for the exclusive use of > the addressee only, and may be confidential or legally privileged. If you > are not the intended recipient you should not use the contents nor disclose > them to any other person and please notify us immediately. Although this > message may have been virus checked you are advised to carry out your own > check. TerraConsult shall not be held liable for any viruses that were > undetected by our system upon transmission. > TerraConsult Limited registered in England No 03949081 > > ######################################################################## > > To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the > following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1= > CONTAMINATED-LAND-STRATEGIES&A=1 > > > ------------------------------ > > To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the > following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1= > CONTAMINATED-LAND-STRATEGIES&A=1 > > > > > ------------------------------ > > To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the > following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1= > CONTAMINATED-LAND-STRATEGIES&A=1 > > ------------------------------ > > To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the > following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1= > CONTAMINATED-LAND-STRATEGIES&A=1 > ######################################################################## To unsubscribe from the CONTAMINATED-LAND-STRATEGIES list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CONTAMINATED-LAND-STRATEGIES&A=1