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Posted By Lloyd Briscoe
The Environment Agency suggest that foul sewer manhole covers should be depicted with a red coloured mark, and that run-off sewer covers should be sky blue.
I have also seen fire hydrant covers painted yellow, but can't find any info that states that this is obligatory. Can anyone advise?
Any other colour-coding information for manhole covers would also be gratefully received (interceptors, telecomms etc..)
Thank you all, - in anticipation...
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Posted By Salus
What exactly do the EA want it done for?
(Maybe in the very near future)
Oh I know introduce an amendment to existing legislation that states if the covers are not marked or have lost that mark, the EA will impose a fine on the responsible company or person for not maintaining the markings.
Tell the EA to get their own house in order first, (have you ever contacted the EA for advice on waste issues, they drive you up the wall with their many different answers and incompetence)and use the fines to help others (district councils, beuty spot parking areas, farmers, etc.) who have had things dumped on their land and the EA just says it's your land you have to get rid of it properly and pay for it.
I would have thought that if any work is to be carried out that drawings for the services would be obtained (could be difficult)with all the services marked on them.
I have never heard of this marking regime before.
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Posted By Charley Farley-Trelawney
Most Foul line covers are identified with FW and storm as SW, surely this is sufficient?
CFT
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Posted By Oliver Whitefield
Lloyd
The colours that you have specified are the industry accepted (and BS) standard colours used to depict foul and surface water sewers on engineering drawings and discharge consents as submitted to the EA. Don't worry the EA would not want you to start painting the physical manhole covers!
Oliver
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Posted By Lloyd Briscoe
Hello Salus,
this is an extract from the EA's booklet entitled 'Getting Your Site Right'..
"Drains should be identified clearly by colour coding all manhole covers, drainage grills and gullies. Foul waterdrains should be painted red and surface water drains blue. Combined drainage systems could be colour-coded with a red letter C. Everyone (including service personnel and contractors) should be made aware of the significance of the colour coding system".
Having just commissioned a new transport & distribution site, I thought that whilst I'm doing the drainage manhole covers, I might as well subscribe to any other utility's coding scheme..
Are fire hydrants painted yellow?
Lloyd
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Posted By garyh
In a previous life I was an effluent manager on a large chemical site. At the time, all of our drains (incredibly wasteful, this!) went to the site effluent system.
However, the colour coding idea is a well known one - employees may (and I emphasise may) be able to allow spills and washings into the foul drain but NEVER to the surface water drains. The surface water drains may well end up in a water course. The only way to make certain that people understand which is which is to mark them with signs or with colours.
Also, should something nasty enter the surface water drains, hopefully someone will spot it and you can call the EA's Pollution hotline 0800 807060 (we should all memorise that number!)
I realise I am preaching, but if a spill is heading towards a watercourse the EA must be informed immediately and action taken. Dead fish don't look very good next to your effluent outfall, I can tell you this from direct experience!
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Posted By Salus
Hi Loyd, just wondered what was wrong with the old system of looking at drawings.As Charley states they were marked once upon a time.
But the title is funny coming from the EA
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Posted By Alexander Falconer Colour coding of manhole covers is more common than you think, and is not restricted to such. Have a look at the drains at the sides of roads, some councils/local authorities highlight color coded dots on the kerbstone adjacent to the drain. Apart from a previous response by Martin Astey in which he specifies this is a common practice amongst ISO 14001 registered companies. Its also all about responding to emergency preparedness, If a chemical is spilled on a site or at the roadside, then emergency services/response teams, etc, can see at a glance exactly where the chemical is being drained to and respond accordingly, contacting the nearest water treatment works to amend/adjust their treatments to accommodate before a serious pollution occurs. Whilst CFT is correct in stating that manhole covers do have FW & SW for identification purposes, how does he know these were installed correctly in the first place (a previous employer moving to a new purpose built site with its own water treatment works had 15% of manhole covers installed incorrectly), and drainaige grill covers after all are not identified with any lettering at all. I cannot remember exactly if there was a relevant BS standard for such colour coding, however http://publications.envi...pdf/PMHO0204BHUP-e-e.pdf provides excellent guidance. Hope this helps Alex PS common practice to paint hydrant covers yellow, and field drainage systems green
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