The Journey of a Water Droplet
WOW. My first semester at Whitman is already over. My year began in Brazil and took me all over the place, from Ecuador and Peru to the San Juan Islands and the great state of Idaho. It's hard to believe I started this blog just one year ago!
One of my greatest adventures has been starting at a new school, Whitman College, as a super-sophomore transfer student. In the two-and-a-half years since I graduated from high school I've attended five different colleges! I feel lucky to have finally settled into Walla Walla as my home for the next three years.
Many of my recent blog entries have been based on the weekly excursions I took with my Introduction to Environmental Studies class, which acquainted me with my new surroundings in eastern Washington.
For my last blog of 2014, I would like to take you on a journey of a water droplet, from the headwaters of Mill Creek in the Umatilla National Forest all the way to the Walla Walla sewage treatment plant. After all, there isn't much that is more central to our lives or our connection with place than water.
|As a water droplet, you fall onto the trees of the Umatilla National Forest as rain or snow and trickle your way downhill into Mill Creek. Then you may be siphoned off into the drinking-water pipe at this low diversion dam.|
|The diversion dam is equipped with a mossy concrete fish ladder for returning steelhead (anadromous rainbow trout) and salmon.|
|Our professor Bob got up on a stump pedestal to demonstrate the aesthetic value of this native white wildflower with the poetic name, pearly everlasting.|
|We hiked through lithosol meadows and huckleberry patches on the 36 city-owned square miles of the Mill Creek watershed.|
|A ranger from the United States Forest Service explained the extreme care taken by the city of Walla Walla to prevent forest fires, from removing fuel (downed wood and dead grass) to thinning out the less fire-resistant tree species.|
|These fire-resistant tamaracks are allowed to remain in sparse stands that don't touch one another. Walla Walla takes such strict precautions because the ash from a forest fire would be disastrous for the city's unfiltered water supply.|
|Here's the Environmental Studies gang enjoying a sunshiny meadow at the top of our hike.|
|I found one small gray bird! Maybe its body contains a droplet of water that will end up in some Whitman student's water bottle next week.|
|The water is sterilized with ozone produced from regular oxygen in these machines I call Lightning Tanks. They are possibly the most awesome thing ever.|
|After treatment the water must pass rigorous tests for low microbial content and low turbidity (cloudiness). Here's a colony of bacteria growing on an agar in the treatment plant's on-site microbiology lab.|
|We were shivering in 20 degree Fahrenheit weather as we toured the city's reservoirs, water towers, and deep-basalt well.|
|Walking on that earth-rock dam in the freezing wind was not fun.|
|The water that isn't diverted to Bennington Lake continues on through downtown Walla Walla in the "concrete box" portion of Mill Creek, pictured here. The channelized creek looks more like a public park wading pool (with a fast current) than a river.|
|A discussion of the city's waste stream wouldn't be complete without a look at the other repository of solid waste: the landfill.|
|Check out those studded trash-compaction tires.|
|At least the European starlings found the trash attractive!|
And there you have it, the exciting journey of a Walla Walla water droplet. I hope your journey through 2015 will be just as exciting!