Clean Watersheds Needs Survey 2012
Distribution of total official needs by State
(January 2012 dollars in billions)
Total documented needs = $271.0 Billion
Range	1 1 1 1
>$25B $5-$25B $2.5-$5B $1-$2.5B <$1B Did not participate
Michigan
The Clean Watersheds Needs Survey (CWNS) is a
comprehensive assessment of needs to meet the water
quality and water-related public health goals of the Clean
Water Act (CWA). States and the U.S. Environmental
Protection Agency (EPA) conduct the CWNS every four
years under CWA Section 516 (b). Michigan did not have
the resources to complete the updating of their data for
the 2004 Survey.
Visit www.epa.gov/CWNS for more information.
Category II
Advanced
Category
Percent
Category I
Secondary Wastewater Treatment
$69QM, 33.2%
CWNS 2012 Michigan documented needs by category
(January 2012 dollars in millions).
I	Secondary Wastewater Treatment
II	Advanced Wastewater Treatment
III	Conveyance System Repair
iV New Conveyance Systems
V	Combined Sewer Overflow Correction
VI	Stormwater Management Program
X Recycled Water Distribution
Total
Category VI
Stormwater
Management
Program
$328M, 15.8%
Category V
Combined Sewer
Correction
$3Q5IVi, 14.7%
Category IV
New Conveyance Systems
$49M, 2.4%
Wastewater
Treatment
$3M, <1%
Category III
Conveyance
Repair
$702M, 33.8%
Improvements in treatment level of Michigan's publicly-owned wastewater treatment plants.

Population served in millions (number of facilities)

Projected
Level of treatment
2004"
2008"
2012"

2032
from 2008-2012
from 2012-2032
Less than Secondary8
-(0)
-(0)
-(0)
-(0)
-
-
Secondary
1.3 (204)
0,5 (178)
0.5 (180)
0.5 (180)
3.8%
6.6%
Greater than Secondary
6.2(120)
6.6(155)
6.2 (155)
6,3(155)
-¦7.1%
3.0%
No Discharge
0.1 (68)
<0.1(58)
<0.1 (58)
0.1 (58)
0.0%
17.4%
Partial Treatment
-(4)
-(0)
-(0)
-(0)
-
-
Total
7.6 (396)
7.2 (391)
6.8 (393)
7.0 (393)
•6.3%
3.5%
a Includes facilities granted section 301(h) waivers from secondary treatment for discharges to marine waters. As of January 1, 2012 waivers for 36 facilities in the CWNS 2012 database had been
granted or were pending.
"This table contains best available information from States and Territories that did not have the resources to complete the updating of the data or did not participate in the CWNS 2004 or 2008. In these
circumstances, information for this table was taken from previous surveys.
Total Michigan
needs for the
2004-2012 CWNS
by category
(January 2012
dollars in millions).

6000

5600

5200

4800
¦j)
4400
o
4000
=
3600
F
3200

2800
(O
h.
2400
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