Water quality determination Kuruvunga springsCatalina Marambio JonesSEE-LA GK12 programMarch 20th, 2013

Common water quality parameters

• Temperature• pH• Alkalinity• Hardness• Turbidity• Dissolved oxygen• Nutrients• Coliform bacteria

pH

Alkalinity

HardnessClassification hardness in mg/L

Soft 0–60

Moderately hard 61–120

Hard 121–180

Very hard ≥ 181

Turbidity

Turbidity

Dissolved oxygen

Nutrients: nitrogen and phosphorus

Nutrients: nitrogen and phosphorus

Coliform bacteria

3 min think, pair, share

Please answer:• What is alkalinity?

• Dissolved oxygen concentration increases, decreases or stays the same as the water temperature decreases?

• What causes eutrophication?

Kuruvunga springs

THANKS!