Westchester Sewage Plant Upgrade Is Behind Schedule

Westchester County is behind its state-mandated schedule in upgrading the Mamaroneck sewage treatment plant. They need permission from Mamaroneck Village to work longer hours, to get the job done by year's end. Nice reporting by Sound and Town Report, here.

Looking for $18 Million in North Hempstead

North Hempstead decided that it didn’t like a plan to divert its sewage away from Long Island Sound and to treatment plants on the south shore of the island, and so it let a state deadline to get $18 million for the project pass. The diversion would have amounted to a nitrogen removal project, to meet the Sound cleanup’s 58.5 percent goal.

Now the town wants to use the $18 million to do actual nitrogen removal at its treatment plants and the state is saying sorry, you’re too late. Here.

In Connecticut, Norwich is paying a lot more for its sewage treatment upgrades (here). Norwich is one of a handful of Connecticut cities that still have combined sewers – that is sewers designed to carry sewage and rainwater, and to bypass treatment plants in wet weather – but it has separated 27 of its 42 sections of combined sewers (in other words, there are only – still? – 15 places where raw sewage pours into local rivers when it rains).

Last Week's Deluge Caused Big Problems in Westchester But Not at the Sewage Treatment Plants

I was skeptical when I read in the paper last week that the heavy rains from the northeaster did not disrupt the treatment process at Westchester's sewage plants. I clearly remember the days (as recently as the late 1990s) when heavy rain damaged equipment and treatment processes, and left the plant in Mamaroneck, for example, unable to properly treat sewage for weeks at a time.

But I'm told now that despite a record amount of water flowing through the plants during and after the northeaster, and even though they had to resort to backup power, all four of Westchester's Sound shore sewage plants performed admirably. No damage, no drop in treatment levels.

The plants are owned and operated by the county. They come under incredible stress because the sewers leading to them (which are owned by the municipalities) are in such poor shape that they get flooded with rainwater, which ought to be flowing not into the sewage treatment plants but through storm sewers and into local streams and the Sound itself.

That situation hasn't changed much in the 25 years since I first learned of it, which leads me to believe that the treatment plants performed better last week because the people running them and working in them wanted them to perform better -- in other words they were diligent about their jobs and took their responsibilities seriously.

If that's indeed the case, they deserve credit.

Update: Here’s an exchange between me and someone who knows about the county’s sewage plants:

Me: "This brings to mind a big storm back in the spring of '98 or '99 (not sure when but Spano was the county exec), that did a lot of damage to the Mamaroneck plant."

“That was in May '98 just after Andy Spano took office in January. That disaster was due to a power failure in Mamaroneck and failure of the Plant's back up generator to start. It was one of two events (the other was the big Yonkers spill earlier that same Spring) that lead to the DEC 98 Consent Order regarding I&I… [inflow and infiltration]”

Me: "The fact that the plants performed well this time, was it because of better equipment or better preparedness on the part of the staff?”

“Better preparedness mostly, although I would also say that Nick Benevento, the current plant supervisor, is first rate and completely committed to his job and he has a good core team. We now have emergency response plans in place, training to the plans and we test all back up generators every month. When Con Ed warned us the power would be cut this time, we engaged the Plant's back up generator (which can also function automatically when necessary) and ASAP brought in a Con Ed diesel generator - at our expense - put it to work and put the plant generator back into its back up role, so that if the Con Ed generator failed (any generator can do that) we would still have a back up. Belt and suspenders.”

This person went on to say that the events in ’98 led to a “never again” attitude:

"I credit Tony Landi, John D'Aquino (retired a few years ago) Adam Zabinski and Tom Lauro and ultimately Andy Spano and Larry Schwartz. The latter two demanded it, and the former four made it happen. Of the four, after tonight's retirement party for Tony, only Tom is left."