TABLE 5.1.1 : RACHENAHALLI LAKE WATER QUALITY RESULTS

I PHYSICAL PARAMETERS :
PARAMETERS	SAMPLE 1	SAMPLE 2	SAMPLE 3	SAMPLE 4
PH**	7.2	7.65	7.95	7.54
ELECTRICAL CONDUCTIVITY*	0.33	0.628	0.428	0.262
TEMPERATURE (oC)	25.5	26	25	23
COLOUR**	YELLOW	YELLOW	YELLOW	YELLOW
II CHEMICAL PARAMETERS:
DISSOLVED OXYGEN	2.3	4.5	4.8	7.5
ALKALINITY	8.4	200	116	124
ACIDITY	16	15	28	20
CHLORIDES	70.98	175.9	173.94	83.98
TOTAL HARDNESS	136.25	301.5	201.65	158.05
CALCIUM	81.75	180	136.25	109
MAGNESIUM	54.5	121.5	65.4	49.05
SODIUM	29.24	55.78	42.52	27.01
POTASSIUM	6.07	10.91	8.097	5.26
TOTAL SOLIDS	352	580	584	332
TOTAL DISSOLVED SOLIDS	296	510	512	285
TOTAL SUSPENDED SOLIDS	56	70	72.4	47
SULPHATES	23.8	23	37	31.94
NITRATES	0.3107	0.3067	0.3016	0.2928
PHOSPHATES	0.01	0.015	0.009	0.0085

---