Parameters	B.D. Standard^a	WHO Standard^b	River Bank	Pre-monsoon		Monsoon		Post-monsoon		Winter		Undesirable effects
Parameters	B.D. Standard^a	WHO Standard^b	River Bank	BD	WHO	BD	WHO	BD	WHO	BD	WHO	Undesirable effects
pH	6.5 - 8.5	6.5 - 8.5	LB	0	0	0	0	0	0	0	0	Metabolic alkalosis or acidosis including vomiting, dehydration, anorexia and chronic obstructive pulmonary disease (EPA, 2001) Taste, Gastrointestinal irritation (Plunkett, 1976)
pH	6.5 - 8.5	6.5 - 8.5	RB	0	0	0	0	0	0	0	0
EC	*	1400	LB	-	100	-	100	-	100	-	100
EC	*	1400	RB	-	100	-	100	-	100	-	100
TDS	1000	1000	LB	100	100	70	70	90	90	80	80
TDS	1000	1000	RB	100	100	20	20	70	70	90	90
DO	6.0	*	LB	100	100	100	100	100	100	100	100
DO	6.0	*	RB	100	100	100	100	100	100	100	100
Ca²⁺	75	200	LB	70	0	70	0	70	0	70	0	Scale formation (Bahar & Reza, 2010)
Ca²⁺	75	200	RB	20	0	70	0	30	0	10	0	Scale formation (Bahar & Reza, 2010)
Mg²⁺	30 - 35	150	LB	70	0	60	0	40	0	50	0	Indirect effects on health which cause eczema (EPA, 2001)
Mg²⁺	30 - 35	150	RB	30	0	100	0	10	0	30	0	Indirect effects on health which cause eczema (EPA, 2001)
Na⁺	200	200	LB	90	90	20	20	60	60	90	90	Joint effect, congestive heart failure and hypertension (EPA, 2001)
Na⁺	200	200	RB	100	100	0	0	80	80	100	100
K⁺	12	12	LB	0	0	0	0	0	0	0	0	Bitter taste (Bahar & Reza, 2010)
K⁺	12	12	RB	0	0	0	0	0	0	0	0	Bitter taste (Bahar & Reza, 2010)
${HCO}_{3}^{-}$	*	240	LB	-	100	-	100	-	100	-	100	Destroy acid balance and causes diarrhea, kidney diseases etc.
${HCO}_{3}^{-}$	*	240	RB	-	100	-	100	-	100	-	100
Cl⁻	150 - 600	250	LB	0	100	0	20	0	60	0	80	Acid-base imbalance, Salty taste etc. (EPA, 2001; Bahar & Reza, 2010)
Cl⁻	150 - 600	250	RB	0	90	0	0	0	80	0	90
${SO}_{4}^{2 -}$	400	250	LB	0	0	0	0	0	0	0	0	Laxative effect in combination with magnesium or sodium (EPA, 2001)
${SO}_{4}^{2 -}$	400	250	RB	0	0	0	0	0	0	0	0
${NO}_{3}^{-}$	10	10	LB	0	0	0	0	0	0	0	0	Blue baby (Bahar & Reza, 2010)
${NO}_{3}^{-}$	10	10	RB	0	0	0	0	0	0	0	0	Blue baby (Bahar & Reza, 2010)
${PO}_{4}^{3 -}$	6	*	LB	0	0	0	0	0	0	0	0	Heart attacks risk, kidney, bone &muscle problems (EPA, 2001)
${PO}_{4}^{3 -}$	6	*	RB	0	0	0	0	0	0	0	0
FC	0	0	LB	80	80	70	70	70	70	30	30	Waterborne gastroenteritis including dysentery, typhoid fever, hepatitis A and ear infections (Ashbolt, 2015)
FC	0	0	RB	70	70	80	80	80	80	70	70
TC	0	0	LB	90	90	70	70	70	70	80	80
TC	0	0	RB	90	90	100	100	80	80	80	80