Title: A study of the St. Joseph Aquifer
Problem: In this study, you will obtain, test, record, and share data about well water to gain a better understanding of the condition of the St. Joseph Aquifer.
Materials used: Water Collection Plastic Bottle, Camera, Timer (cell phone or stop watch), Test Strips (Nitrate/Nitrite, Chloride, pH, Total Hardness, Phosphate)
Personnel Issues: Make sure each strip is read by an investigator who is not color blind. To determine color vision use an online test

Steps
(from hach.com):
Teachers: Rinse the plastic sample bottles with distilled water before passing them out to students.
A. Prepping for the Strip Test

-.) Print off the data collection sheet.
-.) Run outside well water source for five minutes. (As recommended by http://ohioline.osu.edu/aex-fact/0314.html)
-.) Obtain an unused/clean plastic bottle for collecting well water.
-.) Rinse the plastic sample bottle 3 times with well water.
-.) Fill the plastic sample bottle with about 1/4 cup (4 ounces) of warm or cold water. (not hot)

B. Strip Tests
Follow Specific Instructions from Test Strip Bottles...

Chloride Test
1.) Remove a titrator from the bottle and replace the cap immediately.
2.) Insert the lower end of titrator into solution. Do not allow solution to reach yellow completion band at top of titrator.
3.) Allow solution to completely saturate wick of titrator. Reaction is complete when yellow band turns dark.
4.) Note where the tip of the white chloride peak falls on the numbered Quantab scale. This represents the Quantab unit value.
5.) Refer to the table on the tube to convert Quantab units into salt concentration.
*Filtration of the sample solution may be needed to prevent obstruction of the titrator.
*KEEP CAP ON TIGHT BETWEEN USES. STORE AT ROOM TEMPERATURE.
Chloride_Label.png

Nitrate/Nitrite Test
1.) Dip a strip into water for 1 second (or pass under gentle water stream) and remove. Do not shake excess water from the test strip.
2.) Hold the strip level, with pad side up, for 30 seconds. Compare the NITRITE test pad to the color chart on the tube.
3.) At 60 seconds, compare the NITRATE test pad to the color chart. Estimate results if the color on the test pad falls between two color blocks.
*The Nitrate Test actually measures the sum of both nitrate nitrogen and nitrite nitrogen present in the sample.
*KEEP CAP ON TIGHT BETWEEN USES. STORE AT ROOM TEMPERATURE.
Nitrate_Nitrite_Label.png
Total Hardness Test
1.) Dip the strip into water for 1 second (or pass under gentle water stream) and remove. Shake off excess water.
2.) Hold the strip level, with pad side up, for 15 seconds.
3.) Compare the TOTAL HARDNESS test pad to the color chart on the bottle. Estimate results if the color on the test pad falls between two color blocks.
*KEEP CAP ON TIGHT BETWEEN USES. STORE AT ROOM TEMPERATURE.
Hardness_Label.png
pH Test
1.) Dip a strip into water and remove immediately.
2.) Hold the strip level for 15 seconds. Do not shake excess water from the test strip.
3.) Compare the pH test pad to the color on the color chart on the bottle. Estimate results if the color on the test pad falls between two color blocks.
*KEEP CAP ON TIGHT BETWEEN USES. STORE AT ROOM TEMPERATURE.
pH_Label.png
Phosphate Test
1.) Dip a strip into water for 5 seconds and remove.
2.) Hold the strip level, with pad side up, for 45 seconds.
*Do not shake excess water from the test strip.
3.) Compare the PHOSPHATE test pad to the color chart on the tube. Estimate results if the color on the test pad falls between two color blocks.
(person must have passed the colorblind test)
*KEEP CAP ON TIGHT BETWEEN USES. STORE AT ROOM TEMPERATURE.
Phosphate_Label.png
-.) Use the website http://www.satsig.net/maps/lat-long-finder.htm to record latitude and longitude of the well on the data collection sheet. (Be sure to center the map on the outside well cap).
C. Sharing your Data
-.) Record your measurements on the data collection sheet for each test with numerical and color descriptions. If possible, take pictures.
-.) Take pictures of the well head and surrounding area.
-.) Share your information on wellhead.michianastem.org/DataCollection