Biology 675

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Working in groups of 3, you will do a bacteriological analysis of water quality.

The Clean Water Act is the cornerstone of surface water quality protection in the United States. The statute employs a variety of regulatory and nonregulatory tools to sharply reduce direct pollutant discharges into waterways, finance municipal wastewater treatment facilities, and manage polluted runoff. These tools are employed to achieve the broader goal of restoring and maintaining the chemical, physical, and biological integrity of the nation's waters so that they can support "the protection and propagation of fish, shellfish, and wildlife and recreation in and on the water."

Possible project sites

Freshwater creek sites
Calera Creek
San Vincente Creek
Martini Creek
Frenchman's Creek
Bean Hollow Creek
Pompanio Creek
Gazos Creek
Skyline College hillside spring

Terrestrial sites
Soil & root water in Cape Ivy and native plants

Saltwater sites
Pilar Point (end of Westpoint)
Kiteboard Beach
Oyster Point
Estero wetlands
Candlestick Point, Jackrabbit Beach
Crissy Field Beach East
Baker Beach, Lobos Creek
Fort Funston, opposite Lake Merced overflow



maps 1 | 2

Lab work

To be eligible for a grade of
A: you must test 5 samples
B::4 samples
C: 3 samples

The number of samples doesn't guarantee the grade but the samples are required to earn sufficient points for that grade.


The report must include

 Background: Description of the environmental setting
 Discussion of results
 Literature cited
 Three figures


Your written draft procedures should include the following:

 Description of the project

Water Purity Tests
Multiple-tube Technique
Membrane Filter Technique
MPN table
Clean water act
Sample volumes
Waterdog Lake project

Google Earth
USGS Store > Maps>7.5-minute maps
•San Francisco North
•San Francisco South
•Montara Mountain

The grading form.pdf and (1 copy of ) your slides printed in handout format (3, 6, or 9 slides per page) must be turned in at the time of your presentation.


10 minute powerpoint presentation. Guidelines.


Title slide. Titles should be no more than ten words. The title and authors' names appears on the first slide.

Environmental setting. A review of current literature on the topic.



Discussion of results


Data must be included.
References must be included. Cite at the bottom of appropriate slides using correct format. Style Sheet

 Peer evaluation. Each student will evaluate the members of their group and the other posters. Some of the criteria you might use could be time spent, useful discussion, work on research, work on layout, and general organization. Peer evaluation form.pdf.