Author Topic: Drinking Water Quality  (Read 3024 times)

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Offline epiphany

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Drinking Water Quality
« on: January 16, 2016, 09:43:41 am »

This week Affinity Water Ltd have applied to WHBC for outline planning permission for the enhancement and installation of additional treatment with all matters reserved at North Mymms Water Treatment Site, Warrengate Road, North Mymms, Hatfield, AL9 7TY


http://planning.welhat.gov.uk/plandisp.aspx?recno=63652%20%20%20


The following reason for the application is as follows:


"In 2009, the water supplied from North Mymms Works (WTW) was found to be exceeding the drinking water standard for the pesticide Metaldehyde. This is the active ingredient in slug pellets which is heavily used in agriculture.  Although Affinity water have sufficient treatment in place they have agreed with Drinking Water Inspectorate (DWI) to install additional treatment to enhance their treatment capability and reduce the risks from pesticides further. The DWI deadline for completion of construction and acceptance is 31st March 2017."


I have found the Drinking Water Inspectorate report referred to here - http://dwi.defra.gov.uk/stakeholders/price-review-process/ccg-statements/AFW%20CCG%20Report.pdf


Para 2.6 relates to North Mymms. The report is dated 29 October 2013!!


2012 Press release from Veolia here - http://www.veoliawatertechnologies.co.uk/waterandwastewater/medias/press/2013-10-30,Metaldehyde_removal.htm

2013 Affinity Water report to Hertsmere Borough Council on water quality - https://www.hertsmere.gov.uk/Documents/04-Environment-Refuse--Recycling/Environmental-Health/Pollution-Control/Annual-Water-Quality-Report-2013.pdf


Section 3 states "During 2013 elevated levels of the pesticide metaldehyde were detected three times in Zone 023, in March, May and October. At these times, this zone was supplied from our North Mymms water treatment works. The raw waters that feed this treatment works have been found to contain metaldehyde and at present there are no known practical treatment processes that remove metaldehyde. An Undertaking (see section 5. below) is in place for zones supplied by North Mymms water treatment works. The levels of metaldehyde detected were well below that which could affect public health. All exceedences of the standards are reported to the Drinking Water Inspectorate (DWI) in monthly exception reports. In the event that the DWI is not satisfied with the Companyís explanation of the circumstances and the action taken, enforcement action can be initiated."


Map of Zone 23 appears in 2012 report - https://www.hertsmere.gov.uk/Documents/04-Environment-Refuse--Recycling/Environmental-Health/Pollution-Control/Hertsmere-2012.pdf which includes Brookmans Park, Potters Bar, Hatfield, Welham Green and numerous small villages.




So, it appears that since possibly as far back as 2009 we have been drinking water with above the accepted levels of metaldehyde.


Although it is stated that levels of metaldehyde are well below that which could affect public health, I for one will now be exclusively drinking bottled water!
« Last Edit: January 16, 2016, 02:16:01 pm by epiphany »
 
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Offline Editor

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Re: Drinking Water Quality
« Reply #1 on: January 16, 2016, 10:57:25 am »
The raw waters that feed this treatment works have been found to contain metaldehyde and at present there are no known practical treatment processes that remove metaldehyde.

Great piece of research epiphany, thanks for sharing. I wonder if we can get a refund on our water bill for the cost of buying bottled water until the work has been done - although I note from your findings that there is no way of treating this.
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Offline Nimbus

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Re: Drinking Water Quality
« Reply #2 on: January 16, 2016, 01:53:37 pm »
If there's no way of treating water containing metaldehyde, why is installing more treatment plant a suitable response?

 

Offline epiphany

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Re: Drinking Water Quality
« Reply #3 on: January 16, 2016, 02:18:47 pm »
I have just added the correct link to Veolia press release above which details the removal process.....
 

Offline Tubbs

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Re: Drinking Water Quality
« Reply #4 on: January 19, 2016, 12:32:18 am »
 Can we thank epiphany for helping increase retail consumtion/ expenditure by buying bottled water, to avoid the metaldehyde, presumably as a safety measure even though the published data shows that the concentrations are most times below the safe level, which itself has (one assumes) a large safe margin built in. Iím sure the empty glass or plastic bottles will be properly recycled. If it is the case that the published safety levels or stated nationwide occurrence of this material are deliberate over-statements, then one might wonder if there is a conspiracy to reduce the population. But then again, is the apparent extensive use of this stuff in pesticides a consequence of people (unreasonably) wanting cheap food (but not connecting this with the environmental price) combined with this sadly increasingly benighted country being overpopulated (and getting worse every day) and its consequences for food demand. And ps; we depend on imports for 60% plus of our food. Are we short-sighted greedy or just nuts to get in this situation? Offered provocatively but seriously.
 

Offline epiphany

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Re: Drinking Water Quality
« Reply #5 on: January 19, 2016, 08:42:14 am »
Can we thank epiphany for helping increase retail consumtion/ expenditure by buying bottled water, to avoid the metaldehyde, presumably as a safety measure even though the published data shows that the concentrations are most times below the safe level, which itself has (one assumes) a large safe margin built in. Iím sure the empty glass or plastic bottles will be properly recycled. If it is the case that the published safety levels or stated nationwide occurrence of this material are deliberate over-statements, then one might wonder if there is a conspiracy to reduce the population. But then again, is the apparent extensive use of this stuff in pesticides a consequence of people (unreasonably) wanting cheap food (but not connecting this with the environmental price) combined with this sadly increasingly benighted country being overpopulated (and getting worse every day) and its consequences for food demand. And ps; we depend on imports for 60% plus of our food. Are we short-sighted greedy or just nuts to get in this situation? Offered provocatively but seriously.

I agree with the environmental points here but I do query the concept of a "safe" level. Safe for who? Perhaps if you are a guinea pig, rabbit or even a cat you might feel differently.

The long term effects of imbibing small amounts of metaldehyde over the long term are not known and do you trust the figures anyway? Many products in the past have been considered "safe" and turned out to not be so...sometimes with devastating consequences.

However, my main purpose in the original post was to create Public awareness. I feel strongly that if our local water company are knowingly supplying water that exceeds safety levels, then we as consumers should be advised in order for us to make an informed decision as to whether we want metaldehyde to be part of our 5 a day.


This has been going on for the last 6 years......

Most edible products have a list of ingredients, why not water!
 

Offline Tubbs

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Re: Drinking Water Quality
« Reply #6 on: January 19, 2016, 10:05:08 am »
 Epiphany is trying to increase public awareness, for which she must be thanked. Unfortunately there are flaws in her position, no matter how well intended.
As reported in the links she herself provides, metaldehyde occurs widely in water sources and is it seems very difficult to remove; it must therefore affect many / perhaps the majority of water supplies.  Thatís why Veolia have sought solutions to the problem.  (This assumes people believe the reports by Velia, the firm generally regarded by the assorted hidden local nimby organisations (and our MP) as being naughty for having the temerity to win a contract to build a waste incinerator to the rules specification of the HM Treasury and Herts County Council (both coloured Blue)).
So, if metaldehyde is widespread in water sources, and water supplied by Veolia (like most water companies) comes from lots of different places, what other sources of water does Epiphany recommend? And how does she know it isnít in her bottled water?
As to the published safe dose, one assumes it applies to that most nasty of species, homo sapiens, rather than an innocent species eg elephants!?  If it doesnít, then thatís another conspiracy, but with the intent, one might assume, of assisting in reducing the surplus population of the said nasty species.
This metaldehyde comes (read Wikipedia Ė an organisation well worth supporting as a free prime source of information) from sources such as slug and snail pellets and solid fuel for Primus type stoves. So are people willing to give up their nice gardens and stop poisoning these little creatures, stop using a Primus?  Hmmmm.
A better focus of concern is surely the combination of excess consumption and over-population.
 
 

Offline epiphany

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Re: Drinking Water Quality
« Reply #7 on: January 19, 2016, 10:09:43 am »
And how does she know it isnít in her bottled water?


Because the precise contents of the bottle are clearly delineated on the label!
 

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