Objective:
Student will learn how water leaves a treatment system and enter into their homes.
Discuss:
Lead and your water. Explain a drinking water supply system.
Activity:
Have students to draw a water supply system and explain what could happen after water enters into the plumbing in a residence. Also, discuss the following:
* Water in a faucet for more than six hours
* Drinking water from a tap
Lesson Plan V
A. Hands-on Activity
Objective:
Students will test for the chemical pollution of water.
Activity:
pH Test-Use indicator paper to test for copper, lead and other chemical presence in water. The class also can perform pH test to determine if water is acidic or basic. pH meters are available by request to assist with this lesson.
*See Lab activity kits listed in the resource section of the unit.
Connecticut has a medium public water system. The following is a report from the EPA News about cities who are not in the lead 90th percentile exceedances and cities in Connecticut who have failed to conduct required initial lead tap monitoring and reporting as of May 6, 1993.
PWS Name
|
Population
|
Lead (ppb)
|
Connecticut
New Milford Water Co.
|
6,588
|
28
|
Manchester Water Dept.
|
48,702
|
24
|
Westerly Water (Pawcatuck)
|
9,000
|
16
|
Medium System that Failed to Conduct Required Initial Lead Tap Monitoring and Reporting (as of 5/6/93)
Public Water System Name
|
Population EPA Region I
|
Connecticut
Portland Water Works
|
7,200
|
University of Connecticut
|
21,700
|
Source: EPA Environmental News, R-110, May, 1993.