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Partners Grey for a Cleaner Green Environment and

milwaukee Metropolitan sewerage district


SCREENING 1

PRIMARY CLARIFICATION 2

BIOLOGICAL TREATMENT 3

DISINFECTION 4

TO LAKE MICHIGAN

HOME LATERALS We’re all connected by sewer pipes. If you own a home, you own a sewer pipe, a lateral. And, most of us don’t maintain that pipe until there’s a problem. Leaky sewer pipes cause basement backups and sewer overflows. Learn more about what you can do to keep your basement dry at

LATERALS 3,000 MILES CITY OWNED = 3,000 MILES

BASEMENTCONNECTION.ORG

UNNEL SYS T P

OF POLLUTION OUT OF LAKE MICHIGAN

Percent Capture measures how much water and wastewater MMSD captures and treats by year, versus the amount that the District releases from its sewers to area waterways untreated during heavy rain storms to prevent basement backups.

LENGTH 28.5 miles DIAMETER 17 - 32 feet DEPTH 135 - 300 feet underground STORAGE 521 million gallons

% OF VOLUMES CAPTURED & CLEANED

TOTAL

PERCENT CAPTURE

98.21%

1994 1995 1996 1997 1998

99% 98% 99% 97% 99%

1999

94%

2000 2001 2002 2003 2004 2005

95% 99% 99% 100% 97% 99%

2006 2007 2008 2009 2010 2011

99% 99% 95% 98% 96% 99%

VOLUMES IN MILLIONS OF GALLONS

DE E

92 BILLION GALLONS

P

rior to the Deep Tunnel, the region used to have 50 to 60 overflows every year, averaging 8 billion to 9 billion gallons annually.

M TE

THE DEEP TUNNEL HAS KEPT

MMSD = 300 MILES

Currently, the District averages 2.5 combined sewer overflows a year. The tunnel system reduces the risk of basement backups during heavy rain. It was not designed to eliminate all overflows.

OVERFLOW VOLUMES


SCREENING 1

PRIMARY CLARIFICATION 2

BIOLOGICAL TREATMENT 3

DISINFECTION 4

TO LAKE MICHIGAN

HOME LATERALS We’re all connected by sewer pipes. If you own a home, you own a sewer pipe, a lateral. And, most of us don’t maintain that pipe until there’s a problem. Leaky sewer pipes cause basement backups and sewer overflows. Learn more about what you can do to keep your basement dry at

LATERALS 3,000 MILES CITY OWNED = 3,000 MILES

BASEMENTCONNECTION.ORG

UNNEL SYS T P

OF POLLUTION OUT OF LAKE MICHIGAN

Percent Capture measures how much water and wastewater MMSD captures and treats by year, versus the amount that the District releases from its sewers to area waterways untreated during heavy rain storms to prevent basement backups.

LENGTH 28.5 miles DIAMETER 17 - 32 feet DEPTH 135 - 300 feet underground STORAGE 521 million gallons

% OF VOLUMES CAPTURED & CLEANED

TOTAL

PERCENT CAPTURE

98.21%

1994 1995 1996 1997 1998

99% 98% 99% 97% 99%

1999

94%

2000 2001 2002 2003 2004 2005

95% 99% 99% 100% 97% 99%

2006 2007 2008 2009 2010 2011

99% 99% 95% 98% 96% 99%

VOLUMES IN MILLIONS OF GALLONS

DE E

92 BILLION GALLONS

P

rior to the Deep Tunnel, the region used to have 50 to 60 overflows every year, averaging 8 billion to 9 billion gallons annually.

M TE

THE DEEP TUNNEL HAS KEPT

MMSD = 300 MILES

Currently, the District averages 2.5 combined sewer overflows a year. The tunnel system reduces the risk of basement backups during heavy rain. It was not designed to eliminate all overflows.

OVERFLOW VOLUMES


THE FOUR STAGES TO CLEANING WASTEWATER 1 SCREENING Large and small objects are removed, like towels, sand and gravel.

2 PRIMARY CLARIFICATION Grease and oil float to the top of large settling tanks. Solids sink to the bottom.

3 BIOLOGICAL TREATMENT Microscopic

THE GOOD BUGS

organisms, “bugs,” break down organic material.

4 DISINFECTION Disease causing organisms are

killed by chemicals that are then neutralized before the water is returned to Lake Michigan.

Veolia Water Milwaukee is under a 10-year contract to operate and maintain MMSD’s sewers and water reclamation facilities, an agreement that is expected to save District customers $35 million. A world leader in water and wastewater services, Veolia serves 600 communities in North America. See how Veolia helps protect Lake Michigan by scheduling a tour of the Jones Island Water Reclamation Facility. Call 414-747-3849.

The bugs we use for cleaning wastewater are actually famous! When they’re done doing their jobs in the water reclamation facilities, we dry them out and turn them into Milorganite®—a fertilizer that’s been trusted and used by lawn and gardening experts for more than 80 years. You can even see Milorganite® in the movie Caddyshack.


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Message from the Executive Director.

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Jones Island Water Reclamation Facility

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We’ve invested $4 billion over the past three decades on MMSD’s regional sewers, deep tunnels and water reclamation facilities, the stuff we call grey infrastructure. And it’s paying off. Fewer sewer overflows have resulted in cleaner rivers and a cleaner Lake Michigan. This cleaner environment has resulted in hundreds of millions of dollars of increased property values in the region.

Raymond

Caledo on ia

But we are not done. We can take even greater strides by bolstering our tunnels, sewers and facilities with green initiatives that help manage rain and melting snow where it falls, keeping it out of our sewers. Everyone can “do” green infrastructure. It can be as simple as installing a rain barrel or building a beautiful rain garden. Become a Partner for a Cleaner Environment by learning more at www.h2ocapture.com.

WHO WE ARE MMSD is a regional government agency that provides water reclamation and flood management services for about 1.1 million customers in 28 communities in the Greater Milwaukee area. We serve 411 square miles that encompass all, or segments of, six watersheds. Established by state law, the District is governed by 11 commissioners. Besides our core responsibilities, we also handle water quality research, household hazardous waste collection, pharmaceutical collection, industrial waste monitoring, laboratory services, planning and engineering services, and Milorganite®—a fertilizer trusted by professionals for more than 80 years.

“A region that works together, succeeds together.” ~ Kevin Shafer, Executive Director, MMSD


GREEN

CAN DO

SEE WHAT

FOR YOU.

NEW!

EASIER TO

INSTALL

FREE WATER BY THE BARREL Rain barrels capture water from your rooftop, helping to protect rivers and lakes from water pollution. Save money on your water bill by using the rain from your barrel to give thirsty trees, bushes, and flowers a drink on hot summer days. Check out the NEW, easier to install barrels and find out where you can get one. Visit www.mmsd.com for more details.

Measuring Greater Milwaukee’s Future...

MILWAUKEE METROPOLITAN SEWERAGE DISTRICT 260 W Seeboth St Milwaukee WI 53204

www.mmsd.com

GREEN STREETS

rivers and Lake Michigan by visiting H2OCapture on MMSD’s website. See “GREEN” techniques working right here in our own backyard. Calculate what green infrastructure can do for you and then show the world what you’re doing by logging your projects onto our interactive map. Visit www.h2ocapture.com

RAIN GARDENS

LEARN what green infrastructure can do for you, our

GREEN ROOFS

ONE DROP AT A TIME.

Printed on recycled paper.


Grey and Green: Partners for a Better Environment