The Newtown Pentacle

Vas doin on English Kills, boychik, mit the bubbles?

– photo by Mitch Waxman

DUMABO. Down Under the Metropolitan Bridge Onramp, is a spot that bisects the pathway of the so called “industrial Canals of Brooklyn” or English Kills. The darkest thicket of the troubled Newtown Creek, English Kills is largely isolated from casual perusal by the electorate by a continuous shield wall of industrial buildings, which means that what happens on the water is usually commented on by an unlucky few such as myself. The engineered path that the water flows through follows the Brooklyn street grid, which creates a series of right angle turns that impede the tidal actions of the East River which is some 3 miles from here.

This adherence to the street grid, and the hydrological issues it introduces, has caused huge accretions of the so called “Black Mayonnaise” sediments to agglutinate. This sedimentation, along with the summer heat, causes the water to be “anoxic,” meaning that it often carries little or no dissolved oxygen. This kills off any aquatic life that may have wandered back here, and promulgates the colonies of sewage bacteria in the water whose aromatic exhalations remind one of rotting chicken eggs.

The sewage bacteria is provided by the many CSO’s (Combined Sewer Outfalls) found along the waterway.

– photo by Mitch Waxman

To combat these anoxic conditions, the ever reliable NYC DEP (in concert with the state DEC) have installed an aeration system. Basically a giant pipe through which pressurized air is pumped, the thing operates in the same manner as a bubble wand on your aquarium fish tank. Disturbing the surface allows atmospheric gases like oxygen to become dissolved in the water. The DEP building you’ll notice on Metropolitan Avenue in East Williamsburg that adjoins the Metropolitan Avenue Bridge contains the air compressors.

It all sounds rather logical, as the efforts of engineers often do. Problem is that the sewage bacteria conditions are being caused by the Combined Sewer Outfalls on English Kills, which the DEP engineers are not focusing on. It’s sort of like shitting in a fish tank every day, and attaching more and more aerating bubble wands to combat the conditions being caused, without doing anything about… y’know, not shitting in your aquarium.

– photo by Mitch Waxman

Here’s the problem – my pals over at Riverkeeper have voiced MAJOR concerns about this system, and cite a study by M. Elias Dueker which shows that bacterial fauna from English Kills are provided with an opportunity to enter the air via this system. A “Culturable Bacterial Aerosol” as they describe it, is allowed purchase into the atmosphere.

Said organisms can then find a home on any friendly terrestrial surface.

In effect, these bubbles provide a ladder for the worst pathogens in the Newtown creek watershed an opportunity to get up and out of the water. Keeping this sort of bacteria away from the general populace is sort of the mission of the DEP, btw.

from riverkeeper.org

Riverkeeper raised concerns when the city proposed aerating the rest of the creek last spring and asked the DEP to test for pathogens and sewage associated bacteria in the air, which they did not agree to do. Aeration creates bubbles on the water’s surface and is a Band Aid solution to the underlying serious problem of combined sewage overflows. Low oxygen conditions in the creek occur due to sewage contamination and although aeration increases the oxygen level in the water, it does not reduce the amount of sewage or sewage associated bacteria that are dumped into the creek. Riverkeeper has argued that aeration is an ineffective way of addressing the pollution problem and the recent study suggests that it may also negatively impact local air-quality.

– photo by Mitch Waxman

Worse still, the aeration system performs its job quite well. Dissolved oxygen levels in English Kills are higher than they used to be. Accordingly, the DEP is planning on expanding the system from English Kills all the way to the Greenpoint Avenue Bridge, more than a mile away.

The pipes are planned to follow the contour of the Queens coastline, of course, because you wouldn’t be able to get away with doing it on the Brooklyn side. This puts Maspeth, and parts of Sunnyside and Blissville, in the path of the pestilent wind which would rise from the loathsome Newtown Creek.

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