14.—(1) At each point of compliance, water must not contain—
(a)a micro-organism, parasite or substance which (in number or concentration) poses a potential danger to human health; or
(b)a parameter which exceeds its parametric value in Table A or Table B.
(2) At the point of compliance, the sum of the following must not exceed 1 mg/l:—
(a)nitrate (in mg/l) in the water, divided by 50; plus
(b)nitrite (in mg/l) in the water, divided by 3.