October 21, 2018

In the Middle Patuxent River – Day 1

October 21, 2018/ Gwen Morrison

Last Monday, I volunteered through the Howard County Conservancy to help with a high school Stream Assessment in the Middle Patuxent River off the Kings Contrivance Loop trail. It was raining when I left the house before sunrise and continued through the assessment.

It was starting to get lighter when I arrived at the site and helped to set up for the macroinvertebrate collection and identification.

We discovered very quickly that the white boards would not work in the rain – even if we wiped them off immediately before we tried to write.

Fortunately, the rain was gentle and water still relatively clear. This part of the river is silty…not a lot of cobbles.

We found quite a few critters. There were at least 3 different kinds of dragonfly larvae; I had never seen the kind with a more rounded abdomen. All the other critters were the more typical ones.

Paper was quickly damaged in the rain. The students took pictures and (hopefully) enough data sheets will survive to make a good composite data set for the class. I took a picture of one of the sheets. The macroinvertebrate analysis done on site showed the river to be in the moderate range.

The students finished and headed to their buses. As I made my way up the hill to my car, I stopped to look at some of the feeder rivulets along the way (there were bridges although I could have easily walked across these with my boots). There were some signs of erosion along the banks….it wasn’t as bad as I thought it might be after our recent downpours.

There were also some colorful fungi. Orange is seen frequently.

There was an area with a lot of shelf fungi on logs. It was so damp that some seemed to have something green growing on them.

My favorite was nearby – bright red and orange with yellow on the edge.

July 08, 2018

Howard County Composting Facility

July 08, 2018/ Gwen Morrison

I attended a public tour of the composting facility in the county where I life yesterday morning. There is an expansion of the facility being built now but the pilot program has been going on for several years – lots of ‘lessons learned’ being applied to the expansion that will allow more of the county – hopefully the area where I live – to have curbside compost pickup.

The part of the facility that is currently in operation starts with piles of compostables collected from homes and some farm waste (like horse manure).

After being chopped up, it is made into piles. The material is processed for about 45 days in the piles – moved around with bulldozers to get air to all the material so that the decomposers can work. The temperatures in the piles are high enough to kill seeds which is important to the users of compost as a soil enhancer.

The piles are made over two pipes that pull air from through the pile and then

Through wood chips and finished compost (the large pipe in the foreground has pipes that push air under the wood chips/finished compost on the other side) – an effective strategy to reduce odors. The only period when odors come through that filter – so far – has been after Christmas when the discarded trees are in the piles; the pine smell is not one that people are likely to complain about so kudos to the design!

While we were there, there was a pile that was ready to be moved to the area where the compost cures; the work was done with a bulldozer…making multiple trips.

The piles are covered with tarps during rains; the compost does need water, but the amount must be controlled. Run off from the piles and the area around them is controlled.

The new facility under construction will have bunkers rather than piles which will increase the capacity per area over the design in use now. The design capacity must be sufficient to handle the large volume of leaves in the fall. In my case – I wouldn’t send most of my leaves to the compost facility since I have forest behind my house that has absorbed the leaves from my yard quite well. If my area is one of the lucky ones to be included in the expanded service, I’ll decide if sending the front yard leaves to composting is easier than raking them to the forest!

June 11, 2018

Patuxent Branch Trail

June 11, 2018/ Gwen Morrison

Sometimes volunteer activities help us find something new close to where we live. That happened to my husband and I recently. I had volunteered us to count pedestrian and bike traffic as a trail near where we live for a community organization. The location on the Patuxent Branch Trail was only about 3 miles from hour house….and I’d never been there before.

The trail crossed the Little Patuxent River on a re-purposed railroad bridge built in 1902 – the year after one of my grandfathers was born! It became a pedestrian bridge in 2002.

The bridge was still full of sediment from recent rain. Both pictures below taken from the bridge. I was not surprised at how many people (pedestrian and bicyclists) stopped on the bridge to enjoy the view.