Failed percolation test

indirestraits

Does anyone know what the next step is when a percolation test has failed-what needs to be done to the ground and is it expensive??

BrenCooney

Depends on what the t and p values were!
If within certain bands a raised percolation area may be possible, but if they go beyond certain limits then there may be nothing for it but to look at another site.
With the new EPA manual things have got tight.

duncans

Our percolation test results were dodgy but when we told them we were thinking about package treatment works they said ok. check out www.weareserious.co.uk/PDF/package_treatment.pdf

indirestraits

thanks folks , for all advice have already bought site with a derelict cottage should i go back to county council .do you have any experience with this.?

BrenCooney

indirestraits

Check your PM

indirestraits

thanks again for the help but what is the pm quote i have 7 pages of a report and at the end of page 4 it says the t test was not completed as the T-value was going to be>9O.
next page it says likely t value >5O. He dug 2 holes at least so I am guessing that is the report from second hole.I know it failed but it seems to be very serious . There is a septic tank already on the site which has never been used. The water did not go down fast enough as far as i know anyway .
Any further help is greatly appreciated.

PaleRider

Hello, you may be able to lower water table if the ground has a slope. This will involve drainage, it is always a possibility that this may work. If your site is flat it will be much harder. Your site assessor should be able to advice.

IF you could adjust the location of the percolation area, or try another location on the same site. Look at other planning applications. Your assessor should be able to advice. Regards

indirestraits

Thank you for your help. If you think of any thing else, please do let me know!