Fluoride in effluent water? Cancel The title field is required!

1. Bourne Ryan

   
   8/23/2012 8:08 PM

   Is anyone using effluent water that has previously been treated with fluoride? The city is trying to pass adding fluoride to our water supply, and my hope is in the near future to connect to the effluent system. I was just curious if anyone has used it, any turf and soil related problems? And if so, what was done to correct? Thanks for any help.

   
   
   
   
2. Bourne Ryan

   
   8/23/2012 8:08 PM

   I guess I should have added is anyone using the potable water straight from a city tap that has been treated with fluoride? I'm hoping to get into the topic with others that have used either way with fluoride.

   
   
   
   
3. Mark Claburn

   

   6 posts
   
   8/24/2012 10:08 AM

   You might want to push for them not to do that- a few less cavities isnt worth it
   
   Harvard Study Finds Fluoride Lowers IQ - Published in Federal Gov't Journal
   
   
   http://www.reuters.com/article/2012/07/ ... RN20120724
   
   
   Mark Claburn
   Arlington, TX

   
   
   
   
4. Michael Rogers

   

   2 posts
   
   8/27/2012 1:08 PM

   Good question! I read up a bit on fluoride and came up with this
   
   Table 10. Reclaimed water quality regulations for golf course irrigation in Portugal and
   Spain [30,31].
   Constituent
   Portuguese regulation NP 4434/2005
   Spanish regulation
   RD 1620/2007
   Recommended Limit (mg/L) Maximum limit (mg/L) Maximum limit (mg/L)
   pH 6.5–8.4 - -
   Conductivity 1 dS/m - 3.0 dS/m
   Suspended solids 60 mg/L - 20 mg/L
   Turbidity - - 10 NTU
   SAR 8 - 6
   Intestinal
   nematode eggs
   1 egg/ 1 L - 1 egg/ 10 L
   Coliform Fecal coliforms
   200 CFU/100 mL
   - E. coli
   200 CFU/100 mL
   Aluminum 5.0 20 -
   Arsenic 0.10 10 0.1
   Barium 1.0 * -
   Berylium 0.5 1.0 0.1
   Boron 0.3 3.75 0.5
   Cadmium 0.01 0.05 0.01
   Ion Chlorine 70 - -
   Chromium 0.10 20 0.1
   Cobalt 0.05 10 0.05
   Copper 0.20 5.0 0.2
   Fluoride 1.0 15 -
   Iron 5.0 * -
   Lead 5.0 20 -
   Lithium 2.5 5.8 -
   Manganese 0.20 10 0.2
   Molybdenum 0.005 0.05 0.01
   Nickel 0.5 2.0 0.2
   Nitrate 50 * -
   Selenium 0.02 0.05 0.02
   Sulphate 575 * -
   Tin, Tungsten, &
   Titanium
   - - -
   Vanadium 0.10 1.0 0.1
   Zinc 2.0 10 -
   Additional comments in Portuguese regulation: 1. Treatment: secondary (or tertiary), filtration and
   disinfection; 2. Disinfection by UV or ozone rather than chlorine; 3. Irrigation method should avoid
   reclaimed water contact with public; *: value that can be fixed by the administrative body involved.
   
   The values are recommended and maximums from Portugal and then third is Spain.
   
   It seems Ponderosa pines are very susceptible to fluoride toxicity and are used as indicators.
   
   The Fl values are 1 mg/L recommended 15 max in Portugal and are not evaluated in Spain. I saw many references to a recommended 1 mg/L for golf course and other horticultural uses from Florida and EPA.
   
   What is the Fl in your water in ppm´s or mg/L ( same )?
   
   Michael Rogers
   Down to EARTH Water Management ( Soil Solutions )