Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Thursday, July 14, 2011

Of storms, rain & roads


Finally, a stretch of lovely, mild weather - well, with the exception of the brutal storm on Monday.

The storm knocked our power out for just an hour, but the Internet was down for two days. And then came Tuesday, and fields of purple coneflowers and monarda suddenly blooming! I guess they needed the rain.

The rainbarrels needed the water too -- ours were nearly empty, but the 3/4 inch storm managed to fill them back up with run-off from the roof!

In case you hadn't noticed, this isn't just summer - it is also road construction season. Construction and reconstruction, and then adding insult to injury, so many traffic lights out, further slowing any movement through Crystal Lake and points East!

Yes, I know, that sounds like a good reason to just stay home!

If you are like me, and drive on Route 14 between Woodstock & Harvard every week, you too have been witness to a perplexing series of road projects:

- first, crews were out replacing many of the centerline reflectors. They would remove one, fill the hole with asphalt, cut a new hole, and install the new reflector about 10 inches from the old one.

- then, they decided to do some pretty extensive patching. This was actually quite a fascinating process to watch -- and while waiting, or moving very slowly past the work crews for several weeks, I had lots of time to watch. First, the pieces of road to be removed were marked with spray paint, then someone came along with a piece of equipment designed to cut the road -- a big circular saw set to cut a line about 2 inches deep. Next, someone came along to blow the dust away from the cuts, presumably so the next workers could see the cuts. Then came a jackhammer machine to break up the road, followed by the big backhoe to dig the broken road out and put it in a dump truck. Finally, the holes were filled with asphalt, and compressed with a steamroller of some sort. They must have done over a hundred of these patches during the month of June.

- So, imagine my surprise when, July 5th, I noticed that ALL of the centerline reflectors (old and new) had been removed. And next thing I knew, they started grinding off the top two inches of the road all the way from Hughes/Hartland Road just west of Woodstock, to Dean Street. Now, in July, I have had the priviledge of watching a giant road-eating machine grind off the very same patches that were installed just a few weeks ago. I'm not kidding.

I have to believe that there was a more cost-effective way to manage this whole thing. Like maybe just do the current work, and skip the first two projects? I'm all for people having jobs, but do they all have to be employed to do (and undo) things on the same stretch of road?

Maybe I should spend some more time at home in the garden instead of out cursing the construction traffic. I certainly have plenty of rain water to use now!

Thursday, March 10, 2011

Horses and their connection to water quality!

The Illinois Horse industry is a $1.3 Billion dollar industry, and the highest concentration of horses in Illinois is found in McHenry and Lake Counties.

And every adult horse generates up to 55 pounds of manure every day. When you add in the bedding straw, that amount to 12 TONS of the stuff per horse per year.

When not managed properly, horse manure can increase flies and spread of parasites among horses. It can also impact water quality when not stored correctly. And that can mean excess nutrients, bacteria and parasites in local streams or even in the groundwater.

Now, one might ask "why don't the horse farms just spread it on the fields?" That's a good question! First off, depending on how much land one has, and how many horses, it could be problematic to spread that much manure on the fields. Second, many horses have round worms, and if their feces are spread on a field, the worms (a nasty parasite) can survive up to 10 years - so that's potentiall 10 years of round worm infections for the horses.

However, hot composting of the manure will kill most bacteria and parasites - provided the compost process is of a sufficient duration.

In Lake County, a waste hauler, Prairie Land Recycling & Disposal, collects horse manure from many farms and takes it to a facility called Midwest Organics that composts the material with other compostables. They bag the finished product, and it is actually sold at Whole Foods!

There is another option that has been developed by the University of Illinois Extension service: ManureShare. This is a manure exchange program that links gardeners and landscapers who are searching for good compost material with livestock owners who have excess manure.

Quoting from the website: This benefits water quality by removing excess nutrients from farms and by lowering the amount of commercial fertilizer used by gardenrs and others.

The Hooved Animal Humane Society (HAHS) in Woodstock is working with Extension to run a demonstration of on-site composting of horse manure. It will be interesting to see how the program works!

Thursday, August 12, 2010

The Dog Days of Summer!

I thought a nice winter landscape shot would help me keep my cool while writing about the heat!

I heard someone refer to the "Dog Days" of summer, which got me wondering about where that term came from.

First off, the dog days are generally considered the hottest, most humid days of summer that run sometime between early July and mid-September. But, why are dogs taking the heat for this unpleasant time of year?

After doing some research, it looks like the term originally had nothing to do with the furry, friendly critters known as "man's best friend." Rather, the term arose in reference to the "dog star" in the constellation "Canis Major" (Big Dog).

The Romans called the hottest days of summer dies canicularis, Latin for "dog days." They associated the heat with the "dog star" Sirius, the brightest star in the night sky which happens to be found in the Canis Major (big dog) constellation. They even sacrificed a dog each year at the beginning of the dog days to try and appease Sirius.

The Greeks were in on the dog days too, as were the ancient Egyptians who associated the seasonal flooding of the Nile with the appearance of Sirius in the early morning sky just prior to sunrise.

In modern times, folks have associated the term "dog days" with a sluggish stock market, calling poorly performing stocks "dogs." The terms "dog tired" and "dogging it" may have come from the lethargy that many people feel during the hottest, most humid days of the year, even though the originial "dog days" name had nothing to do with an actual dog!

So, another 90+ day today, and it's expected to be at least that hot on Friday. And temps are staying in the mid-upper 70s at night, which means there is no relief from the heat and humidity.

Things may cool to the upper 80s by Saturday when a storm system will move through the area. Starting Saturday night, the evening temperatures should be in the mid 60s, which should help cool things off.

In the meantime, be sure to leave plenty of water out for the dogs to drink - it'll help them get through the dog days!

Saturday, August 7, 2010

Water is Life


I heard a talk about Water this morning by Reverend Budd Friend-Jones of the First Congregational Church of Crystal Lake. He spoke of the spiritual aspects of water - the life force that all religions somehow honor through their creation stories and important rituals.

Our bodies are about 70% water, as is the planet. Where there is no water, there is no life, for all life on our planet evolved in a water world.

Reverend Friend-Jones suggested that when we look into water, we see ourselves - not just our reflections, but our deeper selves as a people. What does our relationship with water say about us? What kind of people would treat the source of all life on the planet as a waste product or a garbage can?

Call me a savage, but I don't think you need modern religion to be moved by that idea!

Consider the Lakota word for water, "mee-nee." The literal translation of "mee-nee" is "my spiritual quality of life." The Lakota regarded water as the life source, and felt they had been entrusted to care for this Sacred Resource by the Creator!

Sunday, July 11, 2010

Are the bats trying to tell us something?


I read an article about bats in the most recent University of Vermont alumnae magazine today. It made me want to cry.

Bats are dying due to a little-understood disorder called "White nose syndrome." The disorder causes the bats to wake frequently throughout their winter hibernation, and since they are hungry when they wake, they fly off in search of insects - their primary source of food. The problem is that in the winter, there are no insects, so the bats expend valuable energy in futile searches before returning to their winter slumbers. By the time they wake in the spring, the bats are so emaciated, that they are susceptible to other illnesses that healthy bats can easily fight off. So, the bats die from a variety of things, so it has been hard to pin-point the exact cause of the syndrome.

Researchers at the University of Vermont have been studying the bats in Vermont, trying to determine what is causing this disorder to decimate the bat populations across the country in a very short time period. Consider: the disorder was first identified in eastern New York state in 2006, and since that time has killed millions of bats in the Northeast US, rapidly spreading down the east coast, and towards the Midwest.

There have been articles in the local paper recently about the discovery of rabid bats in McHenry County, warning people to avoid coming into contact with bats in the event the bats are rabid. So, there may be those who think that bats are dangerous to people, so who cares if bats die?

Well, maybe we should care if all the bats die.

As one of the researchers comments in the article: the bats could be the canaries in the coal mine, perhaps giving us a warning about the general degredation of the environment that we all depend upon for life. Consider that frogs and toads are dying off at an alarming rate across the globe due to a fungus. And Colony Collapse Disorder is affecting bee populations across the US. With no known cause, the loss of bee populations has the potential to destroy the country's agriculture system, as bees are the primary pollinators for many crops!

Do we really want to take the chance that these dramatic die-offs of three unrelated groups of organisims are just a weird coincidence? Or are we prepared to heed the warnings and start making changes to clean up and improve the environment that we all depend upon for survival?

After all, the coal miners couldn't see or smell the invisible gas that killed the canary, but they knew enough to heed the warning that the dead bird gave them. Unlike the coal miners, we can't just move out of the mine into the clean air. We are living in the mine. Will we take the steps necessary to clean the air, water and soil around us before it's too late?

Thursday, May 13, 2010

Help those Migratory Birds

That's an Indigo Bunting, one of the showy Spring Migratory Birds that one might see in McHenry County these days. The shock of blue looks out of place in most any location!

Numerous warblers are travelling through the area this time of year, on the way from their winter homes to their summer places up north. I have to confess, that unless a warbler stops at the bird feeder long enough for me to get a good look at all of its markings, I cannot tell them apart (most are just small, yellowish birds to me...) Some of the names I hear others call out include: Palm Warbler, Pine Warbler, and Yellow-throated warbler. [Note: They are not bright yellow like the goldfinch.]

Keeping water and birdseed available at least through May will help the migrants (and will keep the resident birds happy as well!)

Monday, April 26, 2010

Support TLC in April!


Just a reminder that there are only a few days left in the month of April, which means just a few more days to support TLC & the environment!

If you haven't ordered your oak yet, you have until Friday! Red, bur & swamp white varieties ranging from two foot ($20) to five foot ($75). And 30% of the sale price supports TLC's 3rd Generation Oak Fund to help ensure that oaks will be an important part of the McHenry County landscape FOREVER!

Summer's coming, and that rainbarrel full of clean, free water will be so good for the garden, but you have to order yours by Friday to get the great price of $65 for a 55-60 gallon rainbarrel! Tumbling composters are also available for just $130.
Pick up for the trees, rainbarrels & composters is May 14-15 at Hennen Conservation Area, 4622 Dean Street, Woodstock.

And, you have until Friday to eat at Duke's Ale House, who will donate 5% to TLC if you bring a coupon with you (or ask your server for one at the Restaurant).




Saturday, April 17, 2010

2030 Land Use Plan Vote Tuesday

Tuesday night at 7pm, the McHenry County Board will meet to vote on the proposed 2030 Land Use Plan that has been 3 years in the making.

In the last few days, several people have asked me my opinion on the plan. Let me sum it up this way:

I think the plan should show all undeveloped and unincorporated areas west of Route 47 as farmland or environmental resources. I have several reasons for favoring this approach:

1. It puts the County clearly in the position of supporting farmland and groundwater protection - resources that will benefit all county residents.

2. It sends a message to municipalities that the County is going to stop approving developments in the unincorporated areas of the County - this type of development is more expensive to all county residents (more expensive for the schools, more expensive for emergency responders, more expensive to maintain the extra roads, etc etc).

3. It puts the County in the best possible position to start working collaboratively with municipalities on Intergovernmental matters such as groundwater protection, fuding for road maintenance, and even future growth boundaries to ensure the land and water resources available are used in a sustainable way that benefits all residents -- today and in the future.

I believe recent news articles support this approach:
  • Agritourism grows in County (without farmland, we have no agritourism, and it is big business!)

  • Fire Destroys home in unincorporated area north of Crystal Lake (because the home was in an unincorporated area without fire hydrants, tankers full of water had to be brought in by departments from McHenry and Lake county communities to fight the fire)

  • Industrial Solvent present in local water supplies (article is archived since it's from December 2009) - notices were sent out to residents in Crystal Lake and Fox River Grove letting them know that levels of Trichloroethylene (TCE) in the local water supplies are at half the legal limit.
Think about it, as currently drafted, the plan purports to encourage future development to occur in or adjacent to existing municipalities -- a style of development known as "compact and contiguous." Yet, the plan shows vast areas of unincorporated land as being developed for commercial, industrial or residential uses in the future, BUT it has NO requirement that the development occur only through municipal annexation.

What this means is that a developer can use the plan to gain approval of a project that is NOT compact or contiguous, but is consistent with the plan map. And there isn't much the county board can do to stop them if the project is consistent with the map.

Take a look at the map, especially the area by Marengo and Union. The purple areas are proposed Commercial/Office/Research/Industrial areas and the yellow parts are planned for rural residential development. Thousands of acres of each use on land that is currently farmed. Thousands of acres underlain with groundwater that is highly vulnerable to pollution.

I repeat: I think the plan should show all undeveloped and unincorporated areas west of Route 47 as farmland or environmental resources. Someone suggested to me that this would be the absence of a plan, but I strongly disagree with that notion.

To plan for farmland and enviornmental resources in the unincorporated areas does nothing to stop municipalities from annexing land for development.

The best way to make it clear that the County is serious about wanting future development to occur in municipalities, to protect precious groundwater resources and to ensure there is a thriving agricultural industry in the county in the future, is to have a County Land Use Plan (aka a plan for future development in unincorporated areas) that reflects what the County Board would actually approve in the unincorporated areas.

The next question is "What can we do?" The short answer is to call your county board members and tell them what you think before they vote Tuesday night.

Thursday, February 25, 2010

County 2030 Land Use Plan Meetings

Public Meetings on the McHenry County 2030 Land Use Plan are scheduled for the first week of March: March 1, McHenry; March 2, Harvard; March 3, Crystal Lake; March 4, Marengo; March 6, Woodstock. Details can be found here. The weekday meetings will take place from 5-7pm and the Saturday meeting from 9am-noon.

Taking the time to view the maps and read at least some of the plan is important for residents, especially those who live in the north and west portions of the county that are predominantly farmland.

This is the document that will/should guide future land use changes in the rural areas of the county. The words are important, but let's face it, most people just look at the pictures anyway, so the map is really important.

I can sum up my comments in three words: Change the map.

The text is pretty good - actually quite strong in some areas - but the current map doesn't match the text. [Caution: do not try opening the plan document unless you have a high speed internet connection - it is 89 MegaBytes in size. Copies are available at local libraries.]

One of the big disconnects between the text and the map is in the area of projected population growth and the amount of land needed to accommodate all the new people and jobs that may be needed over the next 20 years.

The map was drafted using a very high future population number, but the text includes a smaller number that is more realistic. The map, therefore, shows a lot more rural residential development in the future than is realistic given the number of new people that are realistically projected to want to move here.

The result it that there are thousands of acres planned for rural residential development that are far outside any municipal boundaries. This directly contradicts one of the plan's primary goals, which is to promote compact & contiguous growth in and around municipalities where essential services are already available, rather than continuing to allow scattered development throughout the rural areas.

Fortunately, the County Planning staff already did a really excellent analysis of the possible changes to the map's sprawling residential development (as recommended by the Planning Commission). The map that staff prepared recommends removing various areas that were initially planned for rural residential development, and showing them as agriculture.

I found the planning staff's memo describing possible map changes to bring the plan's maps into line with the text very helpful in thinking about comments to make at the public meetings. Since this is information that has been provided to the County Board members who will ultimately decide what changes to make, I think using it as a reference is helpful.

There are other issues as well.

For instance, vast areas of farmland far outside of municipalities are planned for industrial development, far in excess of what could be needed to support job creation for future residents. Also, industrial development is planned for areas that are highly sensitive groundwater recharge soils, particularly in the area around Marengo and the Kishwaukee River. These mapped industrial uses are in conflict with the text which supports protection of groundwater resources and compact & contiguous growth patterns.

So, please attend one of the meetings near you and say something, even if it is that you support the map changes proposed by the staff. But it is important to say something, and to say it now, because in a couple of weeks it will be too late. Thank you.

Thursday, February 4, 2010

Parks employ more people than WalMart!

I'm pasting the entirety of an article that a friend just forwarded to me. The next time anyone hints that the environment must play second fiddle to the economy in these tough economic times, just whip this puppy out and show them some facts!

Text of article from The Daily Green follows:
Two New York Times articles published earlier this month illustrate the highs and lows of land protection right now. One, "Preservation Groups Find Bargains in Housing Bust," described how plummeting real estate prices have provided once-in-a-lifetime opportunities for land conservation organizations to protect irreplaceable natural treasures once destined for sprawling development. From Idaho to Florida and Virginia to Oregon, groups have preserved fields and forests, marshland and ocean waterfronts that as little as a year ago were slated for massive housing projects. Many of these scenic wonders now will be turned into parks.

That's the high. The low, "New Year but No Relief for Strapped States," noted the challenges many state governments face to rein in skyrocketing deficits. Actually, the earlier article hinted at this dilemma's environmental implications: dedicated funds for protecting land and creating new parks already have been a casualty of fiscal belt-tightening in statehouses from Olympia to Albany – just when they could do the most good. With red ink continuing to rise, even more drastic cuts are likely. There's a trickle-down effect, too. With less state support, county and municipal governments are being forced to slash their own budgets, so land preservation and parks often take another hit on the local level.

Why are these initiatives such easy deficit-reduction targets? Because there's a presumption they are luxuries. Sure, parks make us feel good and wildflower-filled meadows are pretty to look at, but they don't pay the bills. That's the all-too-common perception among legislators and even the public at large. Actually, nothing could be further from the truth.

For proof, take a look at Conservation: An Investment That Pays, a study released last year by The Trust for Public Land. It's one of the most comprehensive looks yet at the myriad benefits land protection offers our cash-strapped economies.

The report compiles a wealth of statistics offering incontrovertible evidence that:
- Parks increase surrounding property values and hence local revenues, while protected open space such as farms keep the costs of municipal services low. (Remember, cows don't go to school);

- New parks spur economic development and boost nearby businesses, often providing the catalyst for downtown revitalization. This point was driven home forcefully in Poughkeepsie, N.Y., (headquarters of Scenic Hudson, the organization I head) with the October opening of Walkway Over the Hudson, which transformed a rusting railroad
bridge into a dramatic park. In its first two months of operation, it attracted 400,000 visitors, while local restaurants have enjoyed a spike in business;

- Those of us who live near parks are more likely to exercise, which helps us ward off medical conditions responsible for out-of-control health care costs;

- Preserved forests and fields naturally purify our air and water while conserved floodplains prevent property loss from natural disaster – all reducing the need for costly manmade protections;

- By enhancing our quality of life, parks and open space attract new jobs and residents. (A healthy local environment is among business executives' top concerns when looking for a place to relocate or set up shop.)

Parks aren't freeloaders. Far from it, they provide communities with direct economic benefits. The U.S. Fish & Wildlife Service has calculated that Americans who engage in hunting, fishing and wildlife-watching spend nearly $125 billion annually, supporting an industry responsible for 1.6 million jobs – more people than are employed by Walmart, the largest U.S. retailer. The National Parks Conservation Association reports that for each $1 invested in our national parks, there's a $4 return in local spending. In New York, figures are comparable for state parks; I bet the same holds for other states.

In many states, including New York, funds for land protection already have taken disproportionate cuts that fail to take into account these far-reaching economic and environmental benefits. It's imperative we let our legislators know they can't let the landscapes that enrich our lives – and, as it turns out, contribute so much to the bottom line – be the primary victims of future reductions. For in the end, it's us who wind up being the true victims.

Find this article at: http://www.thedailygreen.com/environmental-news/latest/employment-parks-jobs-synd


This is also true in Illinois where funding for the environment, conservation, public parks and the like has been on a steady decline for most of the last decade.

Tuesday, August 25, 2009

Disc Golf versus a Wetland

I read - with a groan - another rant in the newspaper from someone about those "special interest" people in McHenry trying to stop progress because it would mean kids throwing frisbees in their backyards.

I thought: Can't we all learn to get along? Isn't this world big enough for the frisbee-golfers too?

After a call from one of the anti-disc golf neighbors, I realized it wasn't just a case of some folks wanting to keep other folks out of their backyards. The proposed disc golf site is located on a wetland listed on the County's natural area inventory.

There are only about 170 such natural features remaining in the entire county. These natural areas took millenia to evolve, yet the only take hours to destroy through thoughtlessness -- or malice. There are lady slipper orchids growing out there. These flowers are typically only found in natural areas that have survived the onslaught of human beings.

The soil at the park is wet, mucky, not suitable for building anything, and certainly not appropriate for a bunch of people to be running around in, tossing hard discs into metal cages.

When most parks develop amenities in wet areas, things like boardwalks are built to allow people to move across the wetlands without damaging them. Think of Volo Bog or the Bog at Glacial Park near Ringwood. The wetland isn't usually planned for intensive use best suited to a mowed lawn.

Now I will rephrase my early question: "Can't we learn to get along with nature?"

People have destroyed or dramatically altered at least 99% of the landscape somoehow to the detriment of the natural communities that were once here. There are so few remnants of these unique combinations of plants, animals, soils and insects remaining, and yet we still find ways to trample on what little is left.

Call me a savage, but I think nature deserves some places to play too.

Tuesday, July 7, 2009

Does your water taste salty?

In McHenry County, virtually all of the water people use in our day to day lives comes from the ground - groundwater.

An important thing to remember about groundwater is that once pollutants make their way into the water that is underground, it is very difficult and expensive to remove.

A "contaminant" of growing concern in local groundwater supplies is chloride - an element that is being introduced to the groundwater through septic systems that are connected to homes with water softeners and also road salt.

The salt that is commonly used in water softeners to remove hardness from household water is Sodium Chloride (NaCl). The water "softening" process results in the release of high levels of sodium and chloride ions into the septic system where they quickly pass into the drain field and down into the groundwater.

The standard for chloride in drinking water is 250 milligrams per liter (mg/L). This is the level at which the water will taste salty to most people. Less chloride than that and people tend not to notice it.

According to the US Environmental Protection Agency (USEPA), standards for chloride in drinking water are merely guidelines since chloride does not pose a health risk - at least not at levels low enough that we cannot taste it.

We've all heard advice to limit salt intake to help stay healthy, right? It's linked to high blood pressure and thereby an increased risk of heart disease. For humans, the primary source of salt (sodium chloride: NaCl) is the diet.

But, there are members of our community who "taste" chloride at a level of less than 100 mg/L, and whose well-being is profoundly affected in even these small amounts. The level of sodium found in McHenry County groundwater (in the Boone Creek watershed) is already 80 mg/L AND RISING!

A study documenting the dramatic increases in chloride levels in even rural areas of the northeastern US provides a lot of good information about the ecological impact of increasing salinity. The impacts include:

- altered natural community composition (many plants and animals cannot tolerate the higher chloride levels, so are replaced by those that can)

- changes in plant and animal reproduction and mortality (some plants and animals stop reproducing, and others die)

- changes in the structure of microbial communities.

This last one may seem trivial, but those microbes are critical to the soil food web that so much of life depends upon. Consider that oak growing in your yard - if the water table becomes salty, the beneficial fungi and microbes that the trees roots depend upon to feed the tree can die, and then the tree won't be far behind.

Friday, May 15, 2009

Rainbarrels (and Composters) R Us!

Thursday May 14th was the day for unloading rainbarrels & composters from trucks (over 200), and now Friday the 15th & Saturday the 16th are rainbarrel pick up!

So, we are pretty much all rainbarrels right now! 55-60 gallon barrels don't weigh a lot, but they are large, and stacked three high in the back of the building, they probably take up 500 square feet!

I asked one of the drivers where they get the barrels, and he said that all sorts of things are shipped in them from all over the world: pickles, banana peppers, olives, chocolate-covered cherries (??!!), etc. The barrels are made of really sturdy, food-grade plastic, but are not reused for shipping, so are a potentially huge waste stream. But, with a few simple additions, they make a great rainbarrel or composter.

The rainbarrels are fitted with a lid that has a screen covering one or more holes. This allows water to flow from a downspout into the barrel, but keeps mosquitoes from laying their eggs in the water. There is a spigot near the bottom, and a couple of small openings higher up where one can use a hose to connect multiple barrels together -- that way, when one barrel fills up, water starts to fill the next barrel.

The barrels used for composters have a solid lid, and a wooden stand with a bar through the middle of the barrel. This allows one to spin the barrel and mix the compost. The barrels also have a vent tube that allows air to get into the center of the barrel. (Air is one of the keys to making good compost.)

I bought one of the composters this year, and will be sure to let you know how it works. I can aleady vouch for the rainbarrels - I've had two for two years, and they are wonderful!
We plan to sell these every year - it is a fun way to raise awareness of the need for people to conserve water, and to recycle their food and yard waste.

Tuesday, April 7, 2009

Vernal Pools are Teeming with Life!

That's a crayfish, and last Friday, we saw several tiny, immature crayfish in vernal pools up in Alden Township. They were so tiny that the claws were about the width of a strand of hair! The entire critter was perhaps a quarter of an inch long, looking like some random bug larva, but under a magnifying glass, it became clear that these little guys were teeny-tiny crayfish!

A project to gather information about our local vernal pools has been organized by George Johnson, formerly of Alden Township but now living in Madison Wisconsin. One of the things that George had always hoped to accomplish when he lived in McHenry County, was to raise awareness of the presence and importance of these local temporary, spring ponds.

These seasonally wet areas are uncommon in the Chicago region, in large part because they are places that are filled in by homeowners and developers who do not see the benefits of having a wet, mucky spot in the yard each spring and perhaps into the summer.

The spring ponds are fairly common in Alden Township for a couple of reasons: 1. the area is still sparsely developed, and 2. historically, much of the area was used for livestock grazing instead of row crop farming. This meant that the seasonally wet spots survived, along with a lot of critters that are not often seen in the "suburbs."

Friday April 3rd was the inaugural day of McHenry County vernal pool monitoring. During their pool sampling, volunteers saw a large number of fairy shrimp (ranging in color from pink to red to blue to yellow, and everything in between), a wide variety of midges, scuds, and other tiny aquatic life that plays an important role in the overall food chain.

It was a cold day -- 43 degrees in the sun. The water was cold too -- 45 degrees. Yet, when we gazed into our dipping nets as we pulled them from the pools, tiny little eyes looked back at us! I had no idea there was so much activity on a cold day in cold water!

Unfortunately, there were also lots of mosquito larvae. These are another link in the web of life, providing a food source for dragonflies, frogs, fish, birds and other species that feed on water organisms, but I still don't like them. The skeeter larvae spend most of their time at the surface of the water breathing through a tube in their abdomen, as shown in the picture.

The eggs from which the larvae hatched were probably laid in the damp ground last summer or fall, and remained in an embryonic form until conditions were right for them to develop into larvae. The larval stage lasts a week or two, then turns into a pupa for a couple of days -- just long enough for it to become a fully-formed adult mosquito, ready to start feeding...

Now, don't blame the vernal pool for the mosquito larvae. These guys will develop in any little wet spot, regardless of the habitat. Lawns, bird baths, potholes in the road, etc. If it holds water for even a few days, it can be a source of skeeters!

One of the beautiful things about these vernal pools is that they are literally teeming with life of all shapes and sizes. There are microscopic things being eaten by tiny critters, which in turn are eaten by somewhat larger things, etc, etc. In that chain are tadpoles, young frogs and salamanders that eat mosquito larvae.
My wish is that there will be a large number of frog and salamander babies in all of our local vernal pools to eat those larvae before they become adults!


Tuesday, February 17, 2009

Trees and Stormwater

Davey Tree Expert Company has a calculator on their website where individuals can calculate the annual dollar value of all the benefits the trees on their property provide -- to them and to the community at large!

For example, the 39 inch bur oak provides nearly $400 worth of benefits annually, including more than $195 in stormwater management by eliminating over 7,000 gallons of stormwater runoff every year! Without that tree, all of that rain water would flow rapidly to the street, helping to overwhelm the stormsewers.

Now, when I add up the stormwater caught by all of my trees: three bur oaks, one white oak, a cottonwood, two maples, two pears, and two honey locusts, the stormwater savings alone of these trees amounts to nearly $2000 a year, or 65,000 gallons of stormwater that is intercepted rather than running off into the stormsewers!

According to the Center for Urban Forest Research, trees act as mini-reservoirs, controlling runoff at the source. Trees reduce runoff by:

- Intercepting and holding rain on leaves, branches and bark
- Increasing infiltration and storage of rainwater through the tree's root system
- Reducing soil erosion by slowing rainfall before it strikes the soil

And you know what, the trees cost us virtually nothing. Sure, we rake the leaves in the fall (which is good exercise, by the way), and pick up branches after a windstorm, but the annual cost is minimal.

This kind of information makes me think that more communities could invest in promoting city trees as part of their stormwater management program rather than (or in addition to) expanding their stormsewer systems. I would guess that it is much less expensive to manage 7,000 gallons of water with a mature tree than by building more stormsewers.

According to American Forests: As communities grow, trees are removed to make way for impervious surfaces such as parking lots, roads and buildings. Our studies show that impervious surfaces have increased by 20% over the past 2 decades in urban areas. Constructed stormwater facilities are created to compensate for the tree loss. These facilities are expensive to build and maintain. The cost has been calculated to be in excess of $100 billion nationally.