Clean Watersheds Needs Survey 2012
Distribution of total official needs by State
(January 2012 dollars in billions)
Total documented needs = $271.0 Billion
Range	I 1 I 1 I 1 1 1 I 1
>$25B $5-$25B $2.5-$5B $1-$2.5B <$1B Did not participate
O


Hawaii
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.
Category
Percent
I Secondary Wastewater Treatment
Advanced Wastewater Treatment
Conveyance System Repair
IV New Conveyance Systems
V Combined Sewer Overflow Correction
VI Stormwater Management Program
X Recycled Water Distribution
Category III
Conveyance System Repair
S787M. 36.3%
CWNS 2012 Hawaii documented needs by category
(January 2012 dollars in millions).
Category IV
New Conveyance
Systems
$417M, 19.2%
Category II
Advanced
Wastewater
Treatment
$16IVI, <1%
Category X
Recycled Water
Distribution
$77M,
Category I
Secondary Wastewater Treatment
S870M. 40.1%
Improvements in treatment level of Hawaii's publicly-owned wastewater treatment plants.

Population served in millions (number of facilities)
Population change
from 2008-2012
Projected
population change
from 2012-2032
Level of treatment
2004

2008
2012
2032
Less than Secondary3
0.3(1)
0.3 (1)
0.3(1)
0.4 (1)
0.0%
21.8%
Secondary
0.1 (5)
0.3 (6)
0.3 (6)
0.6 (6)
0.0%
62.8%
Greater than Secondary
0.2 (3)
<0.1 (1)
<0.1 (1)
<0.1 (1)
975.3%
475,3%
No Discharge
<0.1(12)
0.1 (14)
0.1 (14)
0.2 (14)
4.5%
73,9%
Partial Treatment
-(0)
-(0)
-(0)
-(0)
-
-
Total
O.S (21)
0.8 (22)
9.8 (22)
1.2 (22)
1.0%
49.0%
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.
Total Hawaii needs
for the 2004-2012
CWNS by category
(January 2012
dollars in millions).
O
a
2004
CHH 2008
~ 2012
Needs Category

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