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Special Board of Aldermen 10-14-2021 Page 12
Alderman Dowd

Just one other thing for people's edifications, when we pave a street like Amherst Street where there are hundreds of
trucks, heavy trucks, every hour, you use a thicker coat of tar than you do on side streets. If you didn't, that would break
up very quickly. Those heavy vehicles really tear up roads.

Alderman Klee

Backing up on to what Aldermen Dowd had said, Amherst Street — 101A is that not a State road and do we pave that?
Dan Hudson, City Engineer

So we do. There are State numbered routes which still are within our maintenance responsibility. That would be one.
Alderman Klee

Okay thank you.

President Wilshire

Anyone else?

Alderman Harriott-Gathright

| just want to say thank you as well to the paving program. I've had quite a few residents that have call for one reason or
another. | would quickly send an e-mail off to Lauren and she's so wonderful. She really is. | get a lot of positive
comments from my constituents on how she's responded and worked at times that there's work to be done in other
times, she could say when approximately works want to be done. | had a gentleman on Hollyhock just last week - so he

sent the thank you to me for sending it to her and a thank you to her for fixing his roadway — Hollyhock because they had
big potholes over there. So say thank you, again.

Dan Hudson, City Engineer
We will.
Lisa Fauteux, Director of Public Works

| just want to mentioned that Commissioner Pappas would like to ask a couple of questions and she can't unmute herself
and | don't know if the host can unmute her or?

Alderman Klee

Jeff just sent me a message that said if Commissioner Pappas comes in again, he has mute upon entry off so she
should be open mic if she comes back in. She's not in right now, she left. So if she calls back in, the auto mute will be
off for her.

Lisa Fauteux, Director of Public Works

Okay, let me ask. I'll tell her that.

President Wilshire

While we're waiting, how about those Red Sox?

Alderman Harriott-Gathright

| actually have another question. So there is several areas where the pavements are really, really bad and one of them

is Harris Road as it comes into the intersection of Conant Road. | think it's the right-hand side if you're going to Harris
Road. Is that in the plan - the pavements? You were referring to at the end of Harris Road.

Special Board of Aldermen 10-14-2021 Page 13

Mark Saunders, Senior Staff Engineer

Yes, yes. So Harris Road as Engineer Hudson alluded to, we focus on mostly arterials and we've done about 32 miles
thus far in the program. So out of that, Harris Road is a borderline collector arterial road due to the volumes it sees and
that is one of the last arterials to be completed. So that is up for a resurfacing treatment and needs to be verified after
this condition survey as we developed the program just to see where it stands.

Alderman Harriott-Gathright

Okay, thank you for that. And there's one other. Kinsley Street as it goes up from Pine to the Cemetery is that in the
making soon?

Mark Saunders, Senior Staff Engineer
What road is that?

Alderman Harriott-Gathright

Kinsley Street from about Pine Street up to the Cemetery - the pavement.

Mark Saunders, Senior Staff Engineer

So Kinsley Street, it was paved from Main Dunstable up to that Pine Street. That section was done with the Broad Street
Parkway. That's why that section was jumped through that condition. | have not been over there recently but | believe

there's no schedule to pave that due to the condition it's in.

Alderman Harriott-Gathright

Not the street, the pavement.
Alderwoman Lu

Do you mean that sidewalk?
Alderman Harriott-Gathright

The sidewalk. Okay. Sorry.

Dan Hudson, City Engineer

Sidewalks are a whole other thing. We would love to do all the sidewalks as repaving but we just don't have a funding
mechanism for that currently. So sidewalks are an issue. As noted, we are at least addressing the access to the
sidewalks that are there such as they are but we do hope to continue to do more sidewalk work in the future but that
would require some funding source. Yes.

Alderman Harriott-Gathright

Thank you.

Alderwoman Lu

Are we still waiting?

Lisa Fauteux, Director of Public Works

Yeah, | think so.

Alderwoman Lu

| had one question. | have a resident who has called me about water flooding in their — it’s not specifically their yard
because it's the first | don't know five feet, which | mean it's their yard it's in front of. What city department can help them

Special Board of Aldermen 10-14-2021 Page 14

with that and is there help for water? | mean, it's really close to a drain but the drain is not catching it. It's on Pine Street
right at the bottom of a hill.

Lisa Fauteux, Director of Public Works

Do you know the number?
Alderwoman Lu
I'll reach out to you.

Lisa Fauteux, Director of Public Works

Okay. We can go take a look at that. We might be able to do something. Is that a street that's recently been paved?
Alderwoman Lu
No.

Lisa Fauteux, Director of Public Works

Yeah, sometimes we can help with those problems. We'll go look at it if you just e-mailed me the address.
Alderwoman Lu

| can’t believe | forgot to do that but okay.

President Wilshire

Okay. | would like to thank you for your presentation on paving. | don't see anyone else on that we're going to wait for.
So | think we're going to move on to the next presentation. Thank you very much.

Mayor Donchess

All right, thank you very much everyone. So why doesn’t Mr. Boucher and Ms. Osborne come up and sit where...All
right, thank you Madam President. So now we're going to do wastewater. We wanted to just give you insight into the
payment structure that the wastewater fees and what the residents are getting for their money. Before we begin, | mean,
the main point here is that these improvements and the system in general, the wastewater system, is really highly
regulated by the EPA and the DES at the State level. We are subject to many regulations as well as an agreed upon
consent decree to make various improvements. So in order to maintain the system in a working condition and to meet
the environmental requirements that we are subject to, virtually all of our expenditures are federally or State mandated.
But with that, you'll hear that since Mr. Boucher came several years ago, we've made very considerable improvements at
the plant trying to upgrade its condition. A lot of equipment was in very bad shape and Ms. Osborne is second in
command so to speak and she's done a lot of the work there too. So we really appreciate them.

The sewer system, of course, is something that people under appreciate. They don't really think about it very much, but
it's a very important system for the city, of course, and since the Romans developed sewers 2,000 years ago, they've
proven to be very essential in any functioning city. So with that, | will give you Director Fauteux, and Mr. Boucher, and
Ms. Osborne.

Dave Boucher, Superintendent of Wastewater

Okay, thank you. I'm Dave Boucher, Wastewater Superintendent. Okay, thank you for the first slide. Okay, so the
picture is showing an aerial view of the wastewater facility located at 2 Sawmill Road. The footprint that the facility sits
on is approximately 28 acres. The facility collects and treats wastewater. We serve about 89,000 customers here in
Nashua. We also serve as Hudson, a small part of Merrimack, New Hampshire, and a small part of Tyngsboro, MA.

Our goal is to deliver clean, clear water to the Merrimack River. The wastewater facility also consists of 446 miles of
collection system that we have to maintain. It's broken up in three different categories here: 82 miles of combined sewer
- this is sanitary sewer and storm water that shares the same pipe; 234 miles of strictly sanitary sewer; 130 miles of
separate storm water. The collection system is the network of pipes underground that carries the wastewater from

Special Board of Aldermen 10-14-2021 Page 15

homes and industries to the wastewater facility. Within the city, we have 13 pump stations. These pump stations are the
buildings or structures on the ground that houses pumps and controls these pumps take any sewage from a low
elevation, brings it up to a higher elevation so that it can be carried by gravity through these pipes to the wastewater
facility. We just finished an upgrade of six pump stations. We're getting ready to start Phase II, which is the remaining
pump stations. We upgrade all the pumps, buildings, underground structures and all the controls to the pump stations.

We also have nine combined sewer overflow structures. These are kind of relief points throughout the city. They're
designed - they're important that if we have like a flash flood, any swarming gets hydraulically overloaded. These are
relief points where highly diluted water would discharge into the river preventing water from coming up into streets or
backing into homes. So we have nine of those through the system. We also maintain eight siphon chambers. This is
anywhere the sewer system travels under a body of water. We maintain the pipe that goes under the body of water, also
the structures on either side for maintenance purposes.

These are some of the numbers we see at the wastewater facility. So the facility has a design flow of 16 million gallons
per day. We can receive a peak flow of 110 million gallons per day during major storms. Our average dry weather flow
is roughly 12 million gallons per day and we have an annual flow of 4,611 million gallons. We also received septage
from Hudson and Nashua. That's roughly about 800,000 gallons per year. So I'll turn over these next couple of slides to
the Operations Supervisor Noelle Osborne.

Noelle Osborne, Operations Supervisor

Thank you. Noelle Osborne, Operations Supervisor. As Mayor Donchess was mentioning, we are highly regulated at
the wastewater facility. Here's a list of the permits that we have. The first one being the NPDES permit and PDES.
That's the National Pollutant Discharge Elimination System. This one's issued by the US EPA but it includes State
standards. So New Hampshire has limitations that are even stricter than the EPA has and we have to follow those as
well. This is our all-encompassing permit. It reflects site specific conditions so it's specific to Nashua and allows us to
discharge into the Merrimack River. It regulates the process through the facility what we've discharged from the facility
as well as the biosolids processed, the management of the collection system, and the discharges from our combined
sewer overflows.

The next one is the New Hampshire SQC - Sludge Quality Certification. So while the NPDES permit does regulate the
basics of our biosolids process, we applied for and were granted additional qualifications for our biosolids giving us what
is called a “Class B Status”. This just means we have additional process and testing requirements but in the end, it
grants us the ability to beneficially reuse the product with the land application. That allows us to reclaim some of the
non-renewable resources in the biosolids such as phosphorus and it's a benefit to farm owners. The Massachusetts
AOS is the same as the SQC - the sludge certification, but in Massachusetts so like the SQC, it allows us to land apply in
Massachusetts.

The air permit is to the New Hampshire DES. We have on site three large emergency generators as the facility has to
continue to run even when there's no electricity from the main grid. We also have two energy recovery generators which
are still offline, but we hope to have operational soon. We have multiple odor control units that help to remove pollutants
called mercaptans from the air, which is basically just sulphur containing compounds that are air pollutants and have that
egg odor. All of the discharges from these units are regulated through this air permit and require monthly and annual
inspections, testing reports, and lots of upkeep and maintenance.

The AST and UST are the above and underground storage tanks. Each of the three emergency generators require large
quantities of fuel to be on hand at all times and these are stored in those above and underground storage tanks which
require regular inspections and maintenance. The multisector general permit “MSGP’” - the wastewater facility due to the
nature of the equipment and the large footprint is considered an industrial site. It has its own stormwater collection
system with catch basins and outfalls. So these are regulated under that MSGP and require testing, inspections, and
reporting. The MS4 permit NPDES Phase II Municipal Separate Storm Sewer System, this permit regulates the storm
water collection system throughout the entire City of Nashua and includes things like reducing inflow and infiltration, as
well as storm water treatment, testing, and reporting.

Hazardous waste SQG and RCRA - that's a Small Quantity Generator and Resource Conservation and Recovery Act.
So the facility does produce a small amount of hazardous waste in the laboratory as a byproduct of our testing. So this
certification lets the State know what we produce and that we have the training to manage it and we report that to them.

So governing documents. Within the permits are requirements to create governing documents and these documents are
written for the City of Nashua either internally or through the use of a consultant. They're specific to our needs and
abilities to accomplish specific tasks. So the collection system O and M is through the CMOM portion of the NPDES

Special Board of Aldermen 10-14-2021 Page 16

permit. It’s the capacity management operation and maintenance section. So we are required to determine specific
achievable goals for the management of the collection system. For example, how many linear feet we intend to video of
the sewers. What is our standard operating procedure for cleaning the sewer and a potential replacement schedule?
We write this so we can tailor it to what we believe to be economically feasible. However, EPA and DES have the final
approvals on whether or not they believe it to be enough.

Long term control plan/integrated plan. This is, again, the CMOM portion of the NPDES Permit as well as the MS4
Permit. So this looks ahead - what are we looking to do moving forward for long term control of the CSOs as well as
storm water management. The consent decree is through the NPDS Permit but it's separate. It's a legal document
issued by the EPA, specifically requiring us to take additional steps towards long term CSO control. Our last consent
decree was from 2003 and was the specific driver for projects like the screening and disinfection facility, the wet weather
flow treatment facility, and Harbor Ave. sewer separation, as well as many others and we expect to see another following
the completion of this one.

The post construction monitoring plan is one of the final stages of the existing consent decree. It was written by Nashua
as a way to measure the effectiveness of the projects completed for CSO long term control. We've been waiting to kick
that off on the completion of several citywide projects. Storm water Management Plan is a requirement of the MS4
Permit and is a plan for the mitigation of storm water pollution. It looks forward at different projects - cleaning schedules
on catch basins and other structures, green infrastructure and more.

Illicit Discharge Determination and Elimination Program. This is another MS4 requirement. It provides a plan for looking
for illegal connections of storm water to our system and removing them. NOI is the Notice of Intent. It's a document
used to declare Nashua under specific general permits such as the MS4 and MSGP. The SWPPP is the Stormwater
Pollution Prevention Plan. This is under the MSGP and is written for the wastewater facility site. It includes inspection
requirements, testing, education, and training requirements. The SPCC is the Spill Prevention Control and
Countermeasure Plan and this is under the AST and UST certification as well as EPA requirements and its necessary of
any facility that has the capability of leaking large quantities of oil or fuel to the stormwater system and eventually to the
river. Because of the quantities of fuel on site for the emergency generators, we follow into this category and, again, has
inspections, reports, tests, and maintenance requirements. So we're going to turn it over to Frank Ayotte of Hazen and
Sawyer.

Frank Ayotte, Hazen and Sawyer

Yes, thank you. I'm one of the city's wastewater infrastructure consultants. Before we get into the slides, just to
comment on wastewater infrastructure. Always water infrastructure whether it's be treatment, collection, pumping is
designed to protect public health. As you can see in the slide, the city has over $85 million dollars and upcoming capital
investments to protect public health. There is a number of bulleted items there, which highlights some of the projects.
There are over 40 of them in the Capital Improvement Plan and these expenditures are required to replace the aging
equipment and infrastructure that keep the city in compliance with all the permits and guidelines Noelle mentioned as
issued by the USEPA to avoid costly fines and violations as a result of failed infrastructure.

Let's look how Nashua’s residential rates compare with selected regional rates. As you can see, these numbers have
been updated for 2021. Nashua is still lower than many of its peer communities. Of importance to note, the average
quarterly bill for the cities above not including Nashua is $156.43 as compared to Nashua this time for $94.97 and is still
well below the State average of $191.25.

So looking at the residential sewer rates from 21 to 23, we just had a residential increase in 2021 of 20% to bring us to
9497. In 2022, a 15% increase is projected and in 2023, a 0% increase is projected. As | mentioned before, this is still
well below the comparison cities averages and the New Hampshire State average. Of importance to note on that last
slide Dan, is prior to 2020 over a 16 year period, there was only an average increase of about 2% in the rate. So it was
very stagnant over that time.

So what is the City doing to control some of its costs besides taking advantage of State revolving loan fund, low interest
rates, and grants? The city has developed an integrated planning framework and has developed a dynamic sewer rate
model to comply with its consent decree from the USEPA. What is an integrated planning framework? It is an EPA
accepted planning framework that allows the city to prioritize its capital projects that best address the most pressing
system needs as determined by Nashua’s criteria. So all those capital projects are then linked into a dynamic sewer rate
model, which was developed by Hazen and Sawyer and allows us to defer capital projects that have determined to have
fewer benefits and some of your more pressing needs. What this allows us to do, it allows us to smooth the cost curve
by shifting projects further out into the future that may not have the most immediate benefit.

Special Board of Aldermen 10-14-2021 Page 17

Okay, what's in the dynamic sewer rate model? Well, it includes a list of all current accounts and assets by rate class, an
annual percentage usage by rate class, and the annual percent revenue by rate class. So that's the revenue side of the
equation that goes into the rate model. On the other side of that is the projection of expenses, including cash and capital
improvement plan debt service, as well as a breakdown of all your O and M costs. So that's your expenditure side.

Once all that is linked into the model, including the Capital Improvement Plan over a time schedule, then you can have
real time rate change selection. So you can select your rate changes whether they're increases or decreases and see
how it real time affects your fund balance. This also is a comparison in the model of the rate change impact to the
USEPA affordability index. That index is 2% of your household income. In 2023, Nashua is still at 1.4% based on the
current increases planned for 2022 and 23, which 23 was flat. So it's still well below the EPA average.

In conclusion, the sewer rates need to cover the cost to finance the capital investments that are required to comply with
the regulatory permits and avoid costly fines due to permit violations as a result of failed infrastructure. Despite the
recently approved increases, so we just went through the 20% increase in 2021, and we're looking at 15% increase in
2022. Nashua’s sewer charges in 2023 will still be lower than many of its peer utilities and well below current State New
Hampshire average household quarterly bill. Nashua rates remain affordable to all major household income brackets
based on the USEPA’s 2% affordability metric. We analyze that in quintiles. So from the lowest income to the highest
income, we break that out in 20% increments and we're still, you know, at the 1.4% in 2023.

Nashua has developed the integrated planning framework to further reduce the rate impacts of its required capital
investments. This initiative includes all capital projects linked into the rate model to accurately forecast the sewer rate
well into the future. So if we're seeing that this rate model is showing higher than normal rate increases, say further
down the road, what can we do to kind of mitigate that? We may be able to come up with a tiered rate structure. We
may be able to shift for capital projects that aren’t at risk further out into the future. The idea would be to try to get to a
cost of living increase over time so you're not getting spikes in the rate. Right now, no additional rate increases are
proposed that this time. Rates will be reviewed annually to determine if future adjustments are really needed. So | know
the city is moving all its accounts into a MUNIS system and at that time, you know, we'll be able to set running rate model
scenarios on the rate based on the city's Capital Improvement Plan.

President Wilshire

Thank you.

Frank Ayotte, Hazen and Sawyer

You're welcome.

President Wilshire

| have a question for Mr. Boucher. One of your first slides you mentioned combined sewers. We still have 86 miles of
combined sewers is that...?

Dave Boucher, Wastewater Superintendent

Yes, approximately 82.

President Wilshire

Okay and are we still working to separate those or no?

Dave Boucher, Wastewater Superintendent

Not to my knowledge not the current ones. Any future ones.
Frank Ayotte, Hazen and Sawyer
| can answer that. Right now we have in a long-term control plan submitted to the USEPA that only includes separation

of a small area related to | believe CSO8. We also have control recommended for the one-year storm. T hose are
technical terms but right now it does not include full separation of the city.

Special Board of Aldermen 10-14-2021 Page 18
President Wilshire

Okay, thank you.

Alderman Klee

Again, thank you Madam President and I'm glad you brought up the CSO because that was what my question was. |
have a couple of questions relative to that and basically where are they located. But before that when we do open and
we do put into the Nashua River and the Merrimack River, | know we dilute as much as possible but I've heard that you
should stay away from the area for 24 hours. | know that Manchester sends out a report that this has been happening.
The reason | bring this up is | have a constituent who is very keen on getting these reports in real time as possible.
Manchester does seem to put out an alert. | think Lowell does the same thing. We do put out the information, but its
well after the fact after that 24 hour period where people should be avoiding that area. Is there anything that we can do
to make that more real time is my first question and then part of that is also is where are these CSOs located? | know
you said five on the Merrimack and four in the Nashua River.

Dave Boucher, Wastewater Superintendent

So we do have flow meters that measure the flow leaving. We do get reports. We do have to verify the data before we
put it out there because sometimes we have false readings. When these do go off, it's usually a major storm - the rivers
are high. It does take a while for the rivers to recede so no one is using the river typically. We don't usually have dry
weather discharges but we do post the discharge on our site - the city's website. How soon is that done?

Noelle Osborne, Plant Operations Supervisor

Within 24 hours.

Dave Boucher, Wastewater Superintendent

So we do do that and at all these sites, it is posted. We do have signs that kind of indicate that there is CSO outfall here
and what would be discharged? Don't go into the river during this time. The specific locations - | don't know if you have
specific locations.

Noelle Osborne, Plant Operations Supervisor

They are on the website on the wastewater portion of the website. There are addresses of all the locations.

Alderman Klee

That's perfect. Thank you that does answer the question.

Dave Boucher, Wastewater Superintendent

Sometimes they don’t have street addresses so it's hard to describe where they are.

Alderman Klee

That's absolutely fine. | can look that up myself and | do appreciate that. Madam President if | could...| had to look up a
word that was in there and it was septage. | looked at it and went okay - 800 gallons of that. So that comes through the
Nashua wastewater is that what you're saying?

Dave Boucher, Wastewater Superintendent

Yeah, correct. The septage is if your house if you're not near a gravity sewer main, you might have a septic tank out
your yard. You'd have to have it pumped every other year or every four years. A truck would pick that up and bring it to
the wastewater facility for treatment.

Alderman Klee

Do we have septic tanks in Nashua?

Special Board of Aldermen 10-14-2021 Page 19

Dave Boucher, Wastewater Superintendent

We do, yes, correct. So we only take it from Nashua and Hudson because we have an agreement with Hudson as well.
Alderman Klee

And you mentioned about the 15% in 2022 and costs have skyrocketed everywhere. Do we foresee that this is actually
going to go up beyond the 15%? | mean, | Know with the joint specialist, quote, the building has gone up. Some items
over 100% of that and we're seeing 20%, 30% of a building type of things. But will that affect this in any way trying to get
parts and so on?

Frank Ayotte, Hazen and Sawyer

Going above 15% of it isn't projected that I'm aware of.

Dave Boucher, Wastewater Superintendent

We're gonna to do an analysis annually to review it.
Alderman Klee

With the COVID cost, we don't foresee any of this going up above 15? I'm thinking of delivery and all of those type of
things. | didn't know if this would affect your area,

Dave Boucher, Wastewater Superintendent

All our projects we're seeing long delivery lead times on everything. We also are aware of cost increases on all the
products we've been buying. So it's hard to project that. | think that's why it's important to do that annual analysis
because the economy is going to change.

Frank Ayotte, Hazen and Sawyer

And the rate model too will allow for that.

Alderman Klee

Thank you very much. | appreciate your answering my questions.

Alderman Lopez

So just asking for a friend here. | talked to Director Fauteux about this. River Dave was featured on a segment of that
radio show a couple weeks ago. Hopefully it brought some attention to the importance of wastewater treatment but it did
make me wonder about a comment made about the sludge and phosphorus which is a renewable resource in it of
benefit to farmers. But | mean given that the former owners of that material had pre-filtered it for toxins, you Know, its
waste for a reason. What are the additional treatments that are that are done to it before it's sent to those places and
has it been used on any farms near Nashua?

Dave Boucher, Wastewater Superintendent

Is this the phosphorus or the PPhos | guess they call it?

Alderman Lopez

| was asking about this the human sludge stuff. | didn’t know it had peat moss in it.
Dave Boucher, Wastewater Superintendent

Okay, yeah.

Special Board of Aldermen 10-14-2021 Page 20

Alderman Lopez

And just to clarify, PPhos is in that too or is that...

Noelle Osborne, Plant Operations Supervisor

PPhos is everywhere. So that's not anything that we have regulations on yet PPhos but the Class V biosolids we have
at the wastewater facility and anaerobic digester which takes some of those pathogens and those viruses out of the of
the product. It reduces the volume. It reduces the odor. That's why you don't have a lot of odors from Nashua’s
wastewater facility. It is a heavily regulated. It's trucked off site. Usually the farmlands are in the northern part of the
State. Class B tends to go to crops that animals would eat not people. So there's that level. There is further treatment
that we could do Class A that we're currently exploring and that would be a product that, you Know, you could come pick
up at the wastewater plant and spread in your gardens. It's pretty inert at that point. Merrimack does that. Residents

are able to come and get that Class A biosolid from them, but we're not there yet. We're at Class B so phosphorus yes
is a non-renewable resource and its black gold for those farmers that are using it.

Alderman Lopez
| just want to dispel any rumors that were sprinkling or poo on orchards or whatever
Alderman Jette

So there's the stormwater - | understand we try to separate the stormwater from sewerage. Does the stormwater go
directly into the river or does that get treated?

Dave Boucher, Wastewater Superintendent

Some stormwater goes to the river and is not plumbed into the wastewater facility. But the ones that is in the combined
system or the sewer system that has just storm water will come to the wastewater facility and be treated. It's not
separated at the facility. It’s treated just like its sewage.

Alderman Jette

Okay, so how much of it goes directly into the river?

Dave Boucher, Wastewater Superintendent

I'm not sure of a percentage that goes to the river direct.

Alderman Jette

And the EPA is okay with that? We're okay doing that? | understand that stormwater it's not just pure rainwater. Its
water that's gone over the street, picked up oil, and other pollutants and so it raises the question, in my mind, why would
we be allowed to dump that directly into the river?

Dave Boucher, Wastewater Superintendent

| believe that was a decision made by the city to not separate but build a wet weather treatment facility, which would
allow us to take in as much as possible and treat. There are some outlier areas where it's not feasible the plummeting
currently to the collection system.

Lisa Fauteux, Director of Public Works

No, | don't think - let me let me take a stab at that Dave. | think what Alderman Jette is saying that why isn't all of the
stormwater being treated that's going to the river, correct?

Alderman Jette

Correct.

Special Board of Aldermen 10-14-2021 Page 21

Lisa Fauteux, Director of Public Works

Yeah, so that's something that we think is coming down the pipe and it's something that communities who have fully
separated as Manchester is doing is going to have, we believe, will have significant problems because it will end up
having to treat all of those stormwater outfalls. That's one of the advantages of our system is that most of the stormwater
is going to the treatment plan and being treated and so that's why we are reluctant to separate the entire system. Only
the areas that we absolutely need to where we're still having CSO overflows. So that's the way we've approached our
wastewater system. So | think you're correct. | think that eventually that's going to be a major problem for a number of
communities who are fully separated. Right now it is not though, the EPA is allowing us to just discharge.

Alderman Jette

So if the stormwater that is treated, why do we separate that?

Lisa Fauteux, Director of Public Works

We don't separate it. It's altogether. It's a combined system.

Alderman Jette

Okay.

Mayor Donchess

C | add to that? My impression is that for a while the EPA is, you know, main thrust was to get communities to separate
because, you know, cities on the East Coast - these older cities - most of them were separating. The problem with that,
as you've just mentioned, is that you get stormwater untreated and untouched going into the rivers. So now, you know,
there may be some problems with that approach given the stormwater and so a lot of our stormwater is being treated,
which is kind of unusual, actually. | believe most of the cities have separated like Manchester. So | think over the years,
you know, there was some separation but then this wet water idea hold the water and then run it through the treatment
plant was developed and most of the stormwater runs through that system but not all of it. Now if any of that is not
accurate, which it may not be, so let's see. | think it's correct.

Lisa Fauteux, Director of Public Works

Yeah, you’re correct.

Alderman Jette

So | guess, you know, the message is that eventually all of the water whether its stormwater or sewerage is going to
have to be treated before it goes into the river. That's in the future for us.

Lisa Fauteux, Director of Public Works

We can't answer that for certain. | wouldn't speak for the EPA, but we believe so.

Dave Boucher, Wastewater Superintendent

There are more and more stringent regulations. They seem to get more and more stringent and stormwater is certainly
an area they're looking at. You have an MS4 Permit now that monitors stormwater outfalls. That's just taking hold now
in a lot of different urbanized communities. Those plans to stop monitoring your outfalls on stormwater and you know, as
the regulations get more stringent, more stringent, you know, it leads you to believe that, you know, treatment of
stormwater is down the road but to be seen.

Alderman Jette

Okay, thank you.

President Wilshire

Anyone else?