[Report of the Medical Officer of Health for Beckenham] page 44

Beckenham 1963

[Report of the Medical Officer of Health for Beckenham]

This page requires JavaScript

Download table as:

AVERAGE RESULTS OF THE CHEMICAL EXAMINATION OF WATER SUPPLIED TO THE BOROUGH OF BECKENHAM DURING 1963

Milligrammes per litre (unless otherwise stated)

Description of Sample	Thames derived South of River	Shortlands	West Wickham	Orpington	Merton Abbey
Number of Samples	156	11	4	4	2
Ammoniacal Nitrogen	0.20	0012	0013	0014	0140
Albuminoid Nitrogen	0 079	0016	0 022	0 022	0 020
Nitrate Nitrogen	3.8	4.4	4.2	5.8	01
Chloride as CI.	32	17	13	16	15
Oxygen abs. from KMnO, 4 hrs. at 27°C	118	004	004	004	016
Turbidity units	0.3	Nil	Nil	Nil	0.6
Colour (Burgess) scale	10	Nil	Nil	Nil	10
Hardness (total)	266	288	266	282	236
Hardness (non.carbonate)	66	62	22	34	8
pH value	7.8	7.2	7.2	7.1	7.3
Phosphate as P04	1.3	—	—	—	—
Silicate as Si02	11	—	—	—	—
Sulphate as S04	62	—	—	—	—
Magnesium as Mg	5	—	—	—	—
Natural Fluoride as F.	0.25	—	—	—	—
Free CO, .. ......	—	—	—	—	—
Surface.active material as Manoxol OT.	008	—	—	—	—
B.O.D. 5 days at 20°C.	—	—	—	—	—
Sodium as Na.	25	12.0	8.0	10.0	12.0
Potassium as K.	5.2	1.8	1.2	1.7	4.8
Electrical Conductivity (micromhos)	550	520	460	510	440