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Wastewater capacity for Warren

April 2, 2014

How does Warren, Michigan compare to the rest of the country ?
The average domestic residential water use per person
in the U.S.A. is approx. 90 gallon per day.
Outdoor water use is one of the reasons for
the high domestic water use in the U.S.A.
About 60% of domestic water use is for pools,
gardening, washing cars and recreational equipment.
The other 40% is indoor use like toilets,
baths, showers, washing clothes.
These are approximations, averages,
educated guesses and there are
regional differences in the USA.
A short 5-minute shower uses between
25 – 50 gallons of water.
That’s comparable to washing a load of clothes.
http://water.usgs.gov/edu/qa-home-percapita.html

About 97% of the Earth’s water is undrinkable.
Another two percent is tied up in glaciers and ice caps.
The remaining one percent is left for us.
Be very, very happy you live in Michigan.

It’s easy to see how 100,000 residential people using
50 gallons a day dumped into the sewer system;
need a Waste Water Treatment Plant
being able to handle 5 MILLION gallons a day.
The reality is that indoor usage is probably closer
to 75 gallons a day for 7.5 MILLION gallons a day.
Industry has a complete different classification
with its own set of rules and regulations.

The City of Warren Waste Water Treatment Plant
has a capacity around 36 MILLION gallons a day.

City of Warren Wastewater Treatment Plant discharges
Blended Effluent – when it can’t keep up .

—- click with mouse to enlarge ———-

Blended Effluent

Blended Effluent

“City of Warren also experiences considerable
infiltration and inflow into the sanitary sewers,
which could increase the normal daily flow
of about 30 mgd to over 150 mgd. ”
mgd = millions of gallons per day

Folks, that is a ~ 5 fold increase ~
in the amount of water — due to rain events.

As seen in the 2003 Detroit Water and
Sewerage Department report
http://www.dwsd.org/downloads_n/about_dwsd/masterplan_wastewater/volume1

Fouts has written letters to U.S. Rep Sander Levin
requesting federal aid. He specifically asked
for Levin’s help in securing financial assistance
as Warren attempts to upgrade its
“50-year-old antiquated infrastructure that
cannot handle large volumes of water in a short time.”
Fouts called on Levin to initiate legislation to
afford special appropriations to older communities,
including Warren, “whose sewer capacity
is inadequate for situations like this.”

Warren has “””special permits””” not used by other facilities in Michigan

http://www.deq.state.mi.us/csosso/event_info.asp?optEvent=14941&cmdSubmit=View+Selected+Event

IN THE MONTH OF APRIL, last year

Reporting Entity: Warren
Event Type: SSO
Notification Date/Time: 4/12/2013 – 1:53:00 PM
Event Start Date/Time: 4/12/2013 – 8:37:00 AM
Event End Date/Time: 4/13/2013 – 6:24:00 AM
Volume: 23.57 MG …that is 23 Million gallons
Characterization: The discharge was reported per statutory requirements.
Precipitation Type: Rain
Precipitation Amount: 2.81
Precipitation Start Date: 4/8/2013 – 1:50:00 PM
Precipitation End Date: 4/12/2013 – 6:32:00 AM
Reason For Discharge: Rain caused retention basin to overflow
Entity Actions to Stop/Min Discharge: Pumped maximum flow through WWTP
Discharge Locations:
Outfall Description: Blended effluent….
Outfall Location: Outfall 001C
Receiving Water: Red Run Drain (tributary to Clinton River)
Land Impacted: None
Volume from this Outfall: 23.57 Million Gallons
Discharge Water Quality: Blended….
Outfall Discharge Start: 4/12/2013 – 8:37:00 AM
Outfall Discharge End: 4/13/2013 – 6:24:00 AM
Actions by MDEQ: NPDES permit contains schedule to eliminate blending

Schedule of Compliance:
The NPDES permit requires construction of all SSO projects
to be completed by December 1, 2016

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