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
Colorado
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 III
Category
Percent
Category I
Secondary Wastewater Treatment
S1.448M, 30.8%
CWNS 2012 Colorado 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
Category II
Advanced
Wastewater
Treatment
$1,258M, 26.8%
Category X
Recycled Water
Distribution
$36M,
Category VI
Stormwater
Management
Program
S576M. 12.3%
Category IV
New Conveyance
Systems
$388M, 8.3%
Conveyance System Repair
$989M, 21.1%
Improvements in treatment level of Colorado'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)
-(0)
-(0)
-(0)
-
-
Secondary
1.3(221)
0.6 (121)
0.5 (131)
0.4 (125)
-28.7%
-0.2%
Greater than Secondary
2.3(42)
0.7 (38)
3.6 (66)
4.5 (94)
443.4%
25.0%
No Discharge
< 0.1 (36)
0,5 (72)
<0,1 (53)
<0.1 (55)
-92.9%
71.5%
Partial Treatment
-(16)
-(2)
-(0)
-(0)
-
-
Total
3.7 (315)
1.8 (233)
4.1 (250)
5.1 (274)
131.7%
22.7%
3 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 Colorado
needs for the
2004-2012 CWNS
by category
(January 2012
dollars in millions).

2000

1800

1600


c
1400
o
=
1200
E,
1000
m
i—
800
(U

ss
600
o

Q
400

200

0



|;_]| 2004
~~2008
~~2012


























































—
—¦

	——
IV
Needs Category

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