[Report of the Medical Officer of Health for Bromley] page 84

Bromley 1972

[Report of the Medical Officer of Health for Bromley]

This page requires JavaScript

Download table as:

AVERAGE RESULTS OF THE CHEMICAL EXAMINATION OF WATER SUPPLIED TO THE LONDON BOROUGH OF BROMLEY FOR 1972

Milligrammes per litre (unless otherwise stated)

Description of the Sample	Numbera of Samples	Ammoniacal Nitrogen	Albuminoid Nitrogen	Nitrate Nitrogen	Oxygen abs. from KMAO 4 hrs at 27° C.	B.O.D 5 days at 20° C	Hardness (total) CaCOj	Hardness / non- \ V carbonate' CaCOa	Magnesium as Mg	Sodium as Na	Potass ium as K	Chloride as CI	Phosphate as PO	Silicate as SiO₂	Sulphate as SO₄	Natural Fluoride as F	Surface-active material as Manoxol OT	CO₂	Turbidity units	Colour (Burgess units)	pH value	Electrical Conductivity (micromhos)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)	(12)	(13)	(14)	(15)	(16)	(17)	(18)	(19)	(20)	(21)	(22)	(23)
River Thames-derived	364	0.031	0.069	6.9	1.06	—	274	82	5.0	24.5	5.5	35	2.8	10	58	0.15	0.02		0.1	13	7.9	570
Eynsford	8	0.002	0.010	5.5	0.07		280	40	2.5			17				0.10		30	0.1	0	7.3	490
Horton Kirby	8	0.003	0.014	5.6	0.10		270	55	2.6			20				0.11		29	0.1	1	7.3	490
Lulling stone	7	0.005	0.014	5.1	0.10		262	34	2.3			16				0.09		21	0.1	1	7.3	460
Merton	1	0.070	0.016	0.5	0.04		244	24	13.0			23				0.40		-	1.3	22	7.3	450
Nth. Orpington	8	0.006	0.013	6..1	0.07		273	30	2.5			15				0.08		36	0.1	£1	7.2	560
Orpington	4	0.002	0.015	8.5	0.08		296	52	2.5			19				0.08		40	0.1	1	7.2	550
Shortiands	12	0.003	0.011	6.7	0.12		290	72	4.0			26				0.10		31	0.1	1	7.1	550
Sundridge	16	0.006	0.013	43	0.08		224	58	3.0			20				0.09		20	0.1	1	7.5	420
West Wickham	4	0.002	0.011	6.6	0.11		267	35	2.5			15				0.09		35	0.1	1	7.2	1490