Water Quality Testing Worksheet (Page 3 of 4) in pdf

Water Quality Testing

Name _________________________________________________

Date ____________

Period_____

Water Quality Information

Water Quality

Safe Levels

Sources

Effects of Unsafe Levels

Indicator

Between 6.5 and 9

Decaying matter causes acidic

Too high or too low can kill organisms;

conditions;

NOT all organisms can live in 6.5 to 9

range

Nitrate

<1mg/L for aquatic

Fertilizers, animal wastes,

Can cause excessive plant and algae

life;

decomposing matter

growth in a process called eutrophication;

<10mg/L for

this process harms or kills animals and can

drinking

kill plants due to overcrowding

Phosphate

0.01 to 0.03mg/L

Phosphate containing rocks and

Can also cause excessive plant and algae

solids; animal waste, fertilizers,

growth in a process called eutrophication;

pesticides, cleaning products,

(see above);

and industrial processes

Chloride

0.01mg/L for

Added to drinking water and

High levels can harm larger organisms;

aquatic life;

swimming pools to kill

Chlorine gas is toxic, can irritate eyes,

<1.0mg/L for

microorganisms that might cause

nasal passages, and lungs

drinking

disease

Source:

Part 1: Use your data from Question 1 to answer the following questions. Use complete sentences.

1. Which water source had the best water quality? Use your data to support your answer.

__________________________________________________________________________________________________

Part 2: Use your data from Question 2 to answer the following questions. Use complete sentences.

2. Which water quality tests were affected by the addition of soap? ____________________________________________

__________________________________________________________________________________________________

3. Which water quality tests were affected by the addition of fertilizer? _________________________________________

__________________________________________________________________________________________________

4. Which water quality tests were affected by the addition of gasoline? _________________________________________

__________________________________________________________________________________________________

5. Which water quality tests were affected by the addition of pesticides? ________________________________________

__________________________________________________________________________________________________

Use the data from Part 1 and the information from Part 2 to answer the following questions:

6. Is the soap water sample “safe”? Use data to support your answer. __________________________________________

__________________________________________________________________________________________________

7. Is the fertilizer water sample “safe”? Use data to support your answer. _______________________________________

__________________________________________________________________________________________________

8. Is the gasoline water sample “safe”? Use data to support your answer. _______________________________________

__________________________________________________________________________________________________

Water Quality Testing Worksheet Page 3

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