Water treatment advice sought please

[BOBTHEukBREWER]

I now have full water analysis (except chloride) from my supplier. Ca 109 K 4.54 Mg 9.1 Cl total .671 Cl free .064 Na 36.2 NO3 16.3 SO4 116 (all mg/l)

Phosphorus 1150 microgrammes per litre

What treatment is advised, please, for an all grain english style bitter around 4% alcohol. Many thanks.

 

[conpewter]

Would need to know your bicarbonates or alkalinity to then calculate your residual alkalinity, this is what will mainly affect the PH in your mash