Clean Watersheds Needs Survey 2012
Distribution of total official needs by State
(January 2012 dollars in billions)
Total documented needs = $271.0 Billion
Range HH 1 1 1 1 I 1 1 I I 1
>$25B $5-$25B $2.5-$5B $1-$2.5B <$1B Did not participate
Maine
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).
Visit www.epa.gov/CWNS for more information.
2012 Maine documented needs by category
(January 2012 dollars in millions).
Category
$M
Percent
1 Secondary Wastewater Treatment
213
22.0
!! Advanced Wastewater Treatment
11
1.1
III Conveyance System Repair
184
19.0
iV New Conveyance Systems
187
19.3
V Combined Sewer Overflow Correction
375
38.7
VI Stormwater Management Program
nr
nr
X Recycled Water Distribution
nr
rir
Total
970
100.0
Category III
Conveyance
System Repair
$184M, 19.0%
CWNS
Category V
Combined Sewer
Overflow Correction
$375M, 38.7%
Category IV
New Conveyance
Systems
$187M, 19.3%
Category I
Secondary
Wastewater Treatment
$213M,
Category II
Advanced
Treatment
$11M, 1.1%
Improvements in treatment level of Maine'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 Secondary3
<0.1(12)
<0.1 (12)
<0.1 (12)
<0.1 (10)
-3.0%
-37.3%
Secondary
0.6(115)
0.6(113)
0.6 (109)
0.6 (108)
-2.0%
-0.3%
Greater than Secondary
<0.1(2)
<0.1(3)
<0.1 (4)
<0.1 (8)
42.9%
81.2%
No Discharge
<0.1(10)
<0.1 (7)
< 0.1 (10)
=<0.1 (12)
154.7%
66.8%
Partial Treatment
-(0)
-d)
-(0)
-(0)
-
-
Total
0.7 (139)
0.6 (136)
0.6 (135)
0.7 (138)
0.5%
4.4%
5 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.
Total Maine needs
for the 2004-2012
CWNS by category
(January 2012
dollars in millions).
~ 2008
~ 2012
Needs Category

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