Puerto Rico 2020 305(b) and 303(d) Integrated Report
RIVERS, STREAMS AND CREEKS
Size of waters Impaired by Causes all cycles (Monitored Miles for Rivers and Streams)
Causes of Impairments
Size of Waters Impaired (miles)
Pesticides
544.3
Surfactants
313.4
Arsenic
25.4
Cadmium
54.7
Copper
1,192.8
Chromium VI
2,555.1
Lead
525.9
Mercury
55.8
Ammonia
364.6
Total, Phosphorus
2, 409.8
Total, Nitrogen
1,621.9
pH
805.1
Dissolved Oxygen
1,221.7
Temperature
1,147.6
Enterococcus
2,555.1
Fecal Coliforms
57.8
Oil & Grease
103.8
Turbidity
2,368.3
Silver
14.6
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
RIO
RIO
9.9
SD
NS
5
5
5
5
H
Collection System Failure
Chromium VI
2020
GUAJATACA
GUAJATACA
50011400
Landfill
Enterococcus
2020, 2018
PRNR3A1
Onsite Wastewater Systems
Fecal Coliform
2016, 2014,
2012, 2008
Total, Nitrogen
2020, 2018,
2016
RIO
22
SD
NS
5
5
5
5
F
H
Agriculture
Chromium VI
2020
GUAJATACA
50010600
Collection System Failure
Enterococcus
2020, 2018
PRNR3A2
Confined Animal Feeding
Operations
Major Municipal Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Total, Nitrogen
2020, 2018,
2016
QUE BRADA LAS
3.5
SD
4a
4a
5
5
D, F,
H
Confined Animal Feeding
Arsenic
2006
SEQUIAS
H,L
Operations
Dissolved
2006
PRNQ3B
Onsite Wastewater Systems
Oxygen
RIO GRANDE
RIO GRANDE
22.4
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
DE ARECIBO
DE ARECIBO
50029000
Collection System Failure
Enterococcus
2020, 2018
PRNR7A1
Confined Animal Feeding
Temperature
2020
Operations
Total,
2020, 2018
Onsite Wastewater Systems
Phosphorus
Urban Runoff/Storm Sewers
Turbidity
2020, 2018,
2014, 2012,
2010, 2006
122.8
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
50025000
Collection System Failure
Copper
2018, 2014
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
Note: The 2020 303
2020 Cycle 303(d) List - List of Rivers and Streams
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
*_
0
a.
Potential Pollution Sources
RIO GRANDE
Confined Animal Feeding
Enterococcus
2020, 2018
DE ARECIBO
Operations
Pesticide
2008
PRNR7A2
Landfill
Temperature
2020
Minor Industrial Point Sources
Total,
2020
Major Municipal Point Sources
Phosphorus
Onsite Wastewater Systems
Turbidity
2020, 2018,
Urban Runoff/Storm Sewers
2014, 2012,
2008
TUNEL
28.9
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
PRNR7A3
50020500
Collection System Failure
Enterococcus
2020, 2018
Confined Animal Feeding
Turbidity
2018
Operations
Minor Industrial Point Sources
Minor Municipal Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO CAONILLAS
87.0
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
PRNR7C1
50026000
Collection System Failure
Enterococcus
2020, 2018
Confined Animal Feeding
Total, Nitrogen
2020
Operations
Total,
2020
Landfill
Phosphorus
Major Municipal Point Sources
Turbidity
2020
Minor Industrial Point Sources
Onsite Wastewater Systems
Surface Mining
Urban Runoff/Storm Sewers
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
(/)
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
O
z
,o
CL
Potential Pollution Sources
RIO LIMON
40.7
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
PRNR7C2
50026350
Minor Industrial Point Sources
Enterococcus
2020, 2018
Onsite Wastewater Systems
Total, Nitrogen
2020
Turbidity
2020, 2016
RIO YUNES
32.7
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
PRNR7C3
50026950
Onsite Wastewater Systems
Copper
2018
Urban Runoff/Storm Sewers
Enterococcus
2020, 2018
Temperature
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
Turbidity
2020, 2018
RIO tanamA
43.5
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
PRNR7B2
50028000
Collection System Failure
Copper
2018
Onsite Wastewater Systems
Enterococcus
2020, 2018
Lead
2018
Total, Nitrogen
2018
Total,
2018
Phosphorus
Turbidity
2018, 2014,
2012, 2008
RIO GRANDE
RIO GRANDE
31
SD
NS
5
5
5
5
K
H
Collection System Failure
Chromium VI
2020
DE MANATI
DE MANATI
50038100
Confined Animal Feeding
Copper
2018
PRNR8A1
Operations
Enterococcus
2018
Landfill
Total, Nitrogen
2018
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
*_
0
a.
Potential Pollution Sources
Major Municipal Point Sources
Total,
2018, 2016
Onsite Wastewater Systems
Phosphorus
Urban Runoff/Storm Sewers
Turbidity
2018, 2014,
2012, 2010,
2008, 2006
RIO GRANDE
38.1
SD
NS
5
5
5
5
K
H
Collection System Failure
Chromium VI
2020
DE MANATI
50035500
Confined Animal Feeding
Copper
2018
PRNR8A2
Operations
Enterococcus
2020, 2018
Landfills
Temperature
2020
Onsite Wastewater Systems
Turbidity
2018, 2014,
Urban Runoff/Storm Sewers
2012, 2010,
2008, 2006
RIO CIALITO
25.8
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
PRNR8B
50035950
Collection System Failure
Enterococcus
2020, 2018
Confined Animal Feeding
PH
2018
Operations
Turbidity
2018, 2014,
Minor Industrial Point Sources
2012, 2010
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO OROCOVIS
19.8
SD
NS
5
5
5
5
K
H
Collection System Failure
Chromium VI
2020
PRNR8E1
50030700
Landfill
Enterococcus
2020, 2018
Major Municipal Point Sources
Total, Nitrogen
2020
Minor Industrial Point Sources
Total,
2020, 2018,
Onsite Wastewater Systems
Phosphorus
2016
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Urban Runoff/Storm Sewers
Turbidity
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
RIO BOTIJAS
19.1
SD
SPD
4a
4a
5
3
D
H
Confined Animal Feeding
PH
2020
PRNR8E2
50030300
K
Operations
Onsite Wastewater Systems
RIO CIBUCO
RIO CIBUCO
31.1
SD
NS
5
5
5
5
A
H
Agriculture
Chromium VI
2020
PRNR9A
50039500
Collection System Failure
Copper
2018
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
Total, Nitrogen
2020, 2018,
Landfill
2016
Major Municipal Point Sources
Total,
2020, 2018
Onsite Wastewater Systems
Phosphorus
Turbidity
2020, 2018,
2014, 2012,
2010, 2008,
2006
RIO MOROVIS
25.5
SD
SPD
4a
4a
5
3
A
H
Collection System Failure
Dissolved
2020, 2014
PRNR9B2
PR13001
PR13017
D
Confined Animal Feeding
Operations
Landfill
Minor Municipal Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Oxygen
21
SD
5
5
5
5
B
H
Collection System Failure
Chromium VI
2020
-184 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
*_
0
a.
Potential Pollution Sources
RIO DE LA
RIO DE LA
NS
Confined Animal Feeding
Dissolved
2020, 2018,
PLATA
PLATA
50046000
Operations
Oxygen
2016
PRER10A1
Major Industrial Point Sources
Enterococcus
2020, 2018
Minor Municipal Point Sources
Temperature
2020
Onsite Wastewater Systems
Total, Nitrogen
2018, 2016
Surfaces Mining
Total,
Phosphorus
2018
Turbidity
2018
RIO DE LA
55.7
SD
NS
5
5
5
5
B
H
Agriculture
Chromium VI
2020
PLATA
50044000
Collection System Failure
Enterococcus
2020, 2018
PRER10A3
Confined Animal Feeding
pH
2020
Operations
Total, Nitrogen
2018
Landfill
Total,
2018, 2016
Major Municipal Point Sources
Phosphorus
Onsite Wastewater Systems
Turbidity
2018, 2014,
2012, 2010
RIO DE LA
10.2
SD
NS
5
5
5
5
B
H
Agriculture
Chromium VI
2020
PLATA
50043000
Confined Animal Feeding
Enterococcus
2020, 2018
PRER10A4
Operations
PH
2020
Landfill
Temperature
2020
Minor Industrial Point Sources
Total, Nitrogen
2018
Onsite Wastewater Systems
Total,
Phosphorus
2020, 2018,
2016
Turbidity
2020, 2018,
2016, 2014,
2010, 2008
-185-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
(/)
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
O
z
,o
CL
Potential Pollution Sources
RIO DE LA
92.7
SD
NS
5
5
5
5
B
H
Collection System Failure
Chromium VI
2020
PLATA
50042500
Confined Animal Feeding
Copper
2020
PRER10A5
Operations
Enterococcus
2020, 2018
Minor Industrial Point Sources
Lead
2020
Onsite Wastewater Systems
pH
2020
Urban/Runoff/Storm Sewers
Total, Nitrogen
2018
Total,
2020, 2018,
Phosphorus
2016
Turbidity
2018, 2014,
2006
RIO GUADIANA
21.8
SD
NS
5
5
5
5
B
H
Collection System Failure
Chromium VI
2020
PRER10E
50044850
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
Total, Nitrogen
2018, 2016
Minor Municipal Point Sources
Total,
2020, 2018,
Onsite Wastewater Systems
Phosphorus
2016
Turbidity
2018, 2016,
2014, 2012,
2010, 2008
RIO ARROYATA
36.8
SD
NS
5
5
5
5
B
H
Agriculture
Chromium VI
2020
PRER10G
50043998
Collection System Failure
Confined Animal Feeding
Dissolved
Oxygen
2018
Operations
Enterococcus
2020, 2018
Onsite Wastewater Systems
Total,
Phosphorus
2020, 2018,
2016
Turbidity
2018, 2014
RIO MATON
15.8
SD
NS
5
5
5
5
B
H
Chromium VI
2020
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
PRER10J
50042800
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
pH
2020
Onsite Wastewater Systems
Total, Nitrogen
2020
Total,
2020
Phosphorus
RIO GUAVATE
19.8
SPD
4a
4a
5
3
B
H
Collection System Failure
PH
2020, 2012
PRER10K
PR1161
D
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO HONDO
RIO HONDO
PRER11A
22
SD
4a
4a
5
3
D
F
H
Collection System Failure
Urban Runoff/Storm Sewers
Dissolved
Oxygen
2016, 2014,
2008, 2006
H
Surfactants
2016, 2008,
2006
RIO
RIO BAYAMON
33.6
SD
NS
5
5
5
5
F
H
Collection System Failure
Ammonia
2020
BAYAMON
PRER12A1
50048510
Confined Animal Feeding
Chromium VI
2020
Operations
Enterococcus
2020, 2018
Minor Industrial Point Sources
pH
2020
Onsite Wastewater Systems
Total, Nitrogen
2020
Urban Runoff/Storm Sewers
Total,
Phosphorus
2018, 2016
Turbidity
2018, 2014,
2010
RIO BAYAMON
83.7
SD
NS
5
5
5
5
F
H
Collection System Failure
Chromium VI
2020
PRER12A2
50047820
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
Total, Nitrogen
2018
-187-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Landfill
Total,
2018
Minor Industrial Point Sources
Phosphorus
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO
50.7
SD
NS
5
5
5
5
F
H
Collection System Failure
Chromium VI
2020
GUAYNABO
50047990
Confined Animal Feeding
Dissolved
2020
PRER12B
Operations
Oxygen
Landfill
Enterococcus
2020, 2018
Major Industrial Point Sources
Total, Nitrogen
2018, 2016
Onsite Wastewater Systems
Total,
2020, 2018,
Urban Runoff/Storm Sewers
Phosphorus
2016
Turbidity
2018, 2016,
2014, 2012,
2010, 2008,
2006
RIO GRANDE
RIO GRANDE
31
SD
NS
5
5
5
5
F
H
Collection System Failure
Chromium VI
2020
DE LOIZA
DE LOIZA
50059100
Confined Animal Feeding
Enterococcus
2018
PRER14A1
Operations
Major Industrial Point Sources
Total,
Phosphorus
2020, 2016
Onsite Wastewater Systems
Turbidity
2020, 2018,
Surfaces Mining
2016, 2014,
Urban Runoff/Storm Sewers
2010, 2008,
2006
RIO GRANDE
86.6
SD
NS
5
5
5
5
C
H
Agriculture
Copper
2020
DE LOIZA
50055000
E
Collection System Failure
Chromium VI
2020
PRER14A2
G
Enterococcus
2020, 2018
-188-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Confined Animal Feeding
Lead
2018
Operations
Pesticides
2008
Landfill
Total,
2018, 2016
Minor Industrial Point Sources
Phosphorus
Onsite Wastewater Systems
Turbidity
2018
Surfaces Mining
Urban Runoff/Storm Sewers
RIO
32.6
SD
4a
4a
5
3
D
H
Confined Animal Feeding
Dissolved
2016
CANOVANAS
F
Operations
Oxygen
PRER14B
H
Minor Industrial Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO
27.9
SD
4a
4a
5
3
D
H
Collection System Failure
Dissolved
2016, 2014
CANOVANILLAS
F
Confined Animal Feeding
Oxygen
PRER14C
H
Operations
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO GURABO
124.3
SD
NS
5
5
5
5
C
H
Collection System Failure
Chromium VI
2020
PRER14G1
50057025
E
Confined Animal Feeding
Operations
Landfills
Copper
2018, 2016,
2014, 2010,
2006
Minor Industrial Point Sources
Enterococcus
2020, 2018
Onsite Wastewater Systems
Temperature
2020
Surfaces Mining
Total, Nitrogen
2020, 2018
Total,
2020, 2018,
Phosphorus
2016
-189 -
-------
Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Turbidity
2020, 2018,
2014, 2012,
2010, 2008,
2006
RIO
42.8
SD
NS
5
5
5
5
C
H
Agriculture
Ammonia
2020
VALENCIANO
50056500
Collection System Failure
Chromium VI
2020
PRER14G2
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
pH
2020
Landfills
Surfactants
2020
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Total,
Phosphorus
2020, 2018,
2016
Turbidity
2018, 2016,
2014, 2006
RIO BAIROA
16.3
SD
NS
5
5
5
5
C
H
Collection System Failure
Chromium VI
2020
PRER14H
50055410
E
Major Municipal Point Sources
Enterococcus
2020, 2018
G
Minor Industrial Point Sources
Surfactants
2018
1
Onsite Wastewater Systems
Total, Nitrogen
2018, 2016
Urban Runoff/Storm Sewers
Total,
Phosphorus
2020, 2018,
2016, 2014,
2012, 2010,
2008
RIO CAGUITAS
33.9
SD
NS
5
5
5
5
C
H
Collection System Failure
Chromium VI
2020
PRER14I
50055250
E
Confined Animal Feeding
Enterococcus
2020, 2018
G
Operations
Surfactants
2020
1
Onsite Wastewater Systems
Total, Nitrogen
2020, 2018,
Surfaces Mining
2016
-190 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Urban Runoff/Storm Sewers
Total,
Phosphorus
2020, 2018,
2016
Turbidity
2018, 2014,
2010, 2008
RIOTURABO
54.7
SD
NS
5
5
5
5
C
H
Agriculture
Cadmium
2018
PRER14J
50054500
Collection System Failure
Chromium VI
2020
Confined Animal Feeding
Copper
2018, 2014
Operations
Enterococcus
2020, 2018
Minor Industrial Point Sources
Lead
2018
Minor Municipal Point Sources
Temperature
2020
Onsite Wastewater Systems
Total,
2018
Urban Runoff/Storm Sewers
Phosphorus
Turbidity
2018, 2014,
2006
RIO CAYAGUAS
38.5
SD
NS
5
5
5
5
C
H
Agriculture
Chromium VI
2020
PRER14K
50051500
Confined Animal Feeding
Copper
2018
Operations
Enterococcus
2020, 2018
Onsite Wastewater Systems
Lead
2018
Total,
2018, 2016
Phosphorus
Turbidity
2018
RIO
RIO HERRERA
17
SD
4a
4a
5
5
D
M
Confined Animal Feeding
Dissolved
2016, 2006
HERRERA
PRER15A
F
Operations
Oxygen
H
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Turbidity
2014, 2012
53.9
SD
5
5
5
5
F
M
Collection System Failure
Chromium VI
2020
-191-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
RIO ESPIRITU
RIO ESPIRITU
NS
Confined Animal Feeding
Enterococcus
2020, 2018
SANTO
SANTO
PRER16A
50063800
Operations
Landfill
Onsite Wastewater Systems
Total, Nitrogen
2018
QUEBRADA
QUEBRADA
4.0
SD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2016, 2014,
MATA DE
MATA DE
F
Urban Runoff/Storm Sewers
Oxygen
2012, 2006
PLATAN0
PLATANO
PREQ18A
H
Surfactants
2016, 2012
QUEBRADA
QUEBRADA
10.0
SD
SPD
4a
4a
5
3
D
M
Collection System Failure
Dissolved
2020, 2006
FAJARDO
FAJARDO
50069410
J
Onsite Wastewater Systems
Oxygen
PREQ21A
PH
2020, 2018
Temperature
2020
RIO
RIO FAJARDO
59.0
SD
NS
5
5
5
5
J
M
Confined Animal Feeding
Chromium VI
2020
FAJARDO
PRER22A
50072500
Operations
Landfill
Dissolved
Oxygen
2018, 2014,
2012
Major Municipal Point Sources
Enterococcus
2020, 2018
Minor Industrial Point Sources
Temperature
2020
Onsite Wastewater Systems
Total, Nitrogen
2020, 2018,
Urban Runoff/Storm Sewers
2016
Total,
2020, 2018,
Phosphorus
2016
Turbidity
2018, 2016,
2012, 2010,
2008, 2006
-192 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
RIO
RIO
2.8
SD
SPD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2020, 2016,
DEMAJAGUA
DEMAJAGUA
PRER23A
50072700
J
Oxygen
2012
QUEBRADA
QUEBRADA
5.0
SD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2016, 2014,
CEIBA
CEIBA
H
M
Oxygen
2012, 2006
PREQ24A
J
Surfactants
2016, 2014,
2012
QUEBRADA
QUEBRADA
4.8
SD
SPD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2020, 2012,
AGUAS
AGUAS CLARAS
50072900
J
Urban Runoff/Storm Sewers
Oxygen
2006
CLARAS
PREQ25A
RIO DAGUAO
RIO DAGUAO
PRER26A
13.8
SD
4a
4a
5
3
D
H
J
M
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Dissolved
Oxygen
2016, 2012,
2006
QUEBRADA
QUEBRADA
7.4
SD
SPD
4a
4a
5
3
D
M
Confined Animal Feeding
Dissolved
2020, 2018,
BOTIJAS
BOTIJAS
PREQ28A
50073500
J
Operations
Onsite Wastewater Systems
Oxygen
2012, 2006
RIO BLANCO
RIO BLANCO
PRER30A
45.0
SD
SPD
50077600
4a
4a
5
5
D
J
H
Agriculture
Confined Animal Feeding
Operations
Minor Industrial Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Turbidity
2020, 2012
QUEBRADA
13.4
SD
SPD
4a
4a
5
3
D
H
Agriculture
Dissolved
2020, 2018,
PENAPOBRE
50076300
J
Confined Animal Feeding
Oxygen
2006
PREQ30B
Operations
Onsite Wastewater Systems
-193-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
RIO ANTON
RIO ANTON
16.9
SD
SPD
4a
4a
5
3
D
M
Agriculture
Dissolved
2020, 2014,
RUIZ
RUIZ
50078510
J
Confined Animal Feeding
Oxygen
2016, 2012
PRER31A
Operations
Onsite Wastewater Systems
Temperature
2020
QUEBRADA
QUEBRADA
8.5
SD
SPD
4a
4a
5
3
D
M
Collection System Failure
Dissolved
2020, 2012,
FRONTERA
FRONTERA
PREQ32A
50078900
J
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Oxygen
2006
RIO
RIO HUMACAO
55.8
SD
NS
5
5
5
5
F
M
Collection System Failure
Ammonia
2020
HUMACAO
PRER33A
50082000
Confined Animal Feeding
Chromium VI
2020
Operations
Copper
2018, 2014
Landfill
Enterococcus
2020, 2018
Onsite Wastewater Systems
Lead
2018, 2014
Urban Runoff/Storm Sewers
Mercury
2020, 2018
pH
2020
Surfactants
2018, 2014,
2010, 2008
Temperature
2020
Total, Nitrogen
2020, 2018
Total,
2020, 2018,
Phosphorus
2016
Turbidity
2020, 2018,
2016, 2014,
2012, 2008,
2006
-194-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
RIO
RIO
10.4
SD
SPD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2020, 2018,
CANDELERO
CANDELERO
PRER34A
50082700
F
Confined Animal Feeding
Operations
Oxygen
2012
RIO
RIO GUAYANES
62.0
SD
NS
5
5
5
5
F
M
Agriculture
Chromium VI
2020
GUAYANES
PRER35A
50085000
Confined Animal Feeding
Operations
Landfill
Copper
2020, 2016,
2014, 2012,
2006
Minor Industrial Point Sources
Enterococcus
2020, 2018
Onsite Wastewater Systems
Lead
2020, 2016,
2014, 2006
PH
2020, 2016,
2014
Total,
2020
Phosphorus
Turbidity
2020, 2016,
2014, 2012,
2006
RIO
RIO MAUNABO
36.0
SD
NS
5
5
5
5
F
M
Agriculture
Chromium VI
2020
MAUNABO
PRER37A
50091000
Collection System Failure
Enterococcus
2020, 2018
Landfill
Temperature
2020
Minor Industrial Point Sources
Total, Nitrogen
2020, 2016
Minor Municipal Point Sources
Total,
2020, 2016
Onsite Wastewater Systems
Phosphorus
Urban Runoff/Storm Sewer
Turbidity
2020
QUEBRADA
QUEBRADA
1.0
SD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2012
PALENQUE
PALENQUE
H
Oxygen
-195-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
Note: The 2020 303
2020 Cycle 303(d) List - List of Rivers and Streams
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Waterbody
Name
Waterbody
l/>
2020
Monitoring
Stations
Designated Uses and
Categories
Summary
(/)
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
O
z
,o
CL
Potential Pollution Sources
PRSQ41A
J, L
RIO CHICO
RIO CHICO
PRSR42A
14.6
SD
4a
4a
5
5
D
H
M
Agriculture
Confined Animal Feeding
Ammonia
2016, 2014,
2012, 2006
J
Operations
Copper
2016, 2006
L
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Dissolved
Oxygen
2016, 2012,
2006
Silver
2004
Surfactants
2016, 2006
Total,
Phosphorus
2016, 2006
RIO GRANDE
RIO GRANDE
35.9
SD
NS
5
5
5
1
J
H
Onsite Wastewater Systems
Chromium VI
2020
DE PATILLAS
DE PATILLAS
50092000
Enterococcus
2020, 2018
PRSR43A2
PH
2020
RIO
GUAMANI
RIO GUAMANI
PRSR49A
22.0
SD
4a
4a
5
3
D
H
J
L
M
Collection System Failure
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Temperature
2012
QUEBRADA
MELANIA
QUEBRADA
MELANIA
PRSQ50A
7.0
SD
SPD
50096010
4a
4a
5
3
D
J
L
M
Landfill
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2008
RIO SECO
RIO SECO
PRSR51A
24.7
SD
4a
4a
5
3
D, H
J, L
M
Agriculture
Onsite Wastewater Systems
Dissolved
Oxygen
2012
QUEBRADA
AMOROS
0.7
SD
SPD
50098600
4a
4a
5
3
D
J
M
Agriculture
Collection System Failure
Dissolved
Oxygen
2020, 2012,
2008
-196 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
QUEBRADA
L
Onsite Wastewater Systems
PH
2020
AMOROS
PRSQ52A
QUEBRADA
QUEBRADA
15.0
SD
SPD
4a
4a
5
3
D
M
Confined Animal Feeding
Dissolved
2020, 2016,
AGUAS
AGUASVERDES
50099400
F
Operations
Oxygen
2014, 2012
VERDES
PRSQ53A
L
Onsite Wastewater Systems
RIO NIGUAS
RIO NIGUAS DE
102.5
SD
4a
4a
5
3
D
M
Confined Animal Feeding
Dissolved
2010
DE SALINAS
SALINAS
PRSR54A
F
H
L
Operations
Onsite Wastewater Systems
Surfaces Mining
Urban Runoff/Storm Sewers
Oxygen
RIO
RIO CAYURES
5.0
SD
4a
4a
5
3
D
M
Agriculture
Surfactants
2016, 2014,
CAYURES
PRSR56A
H
Onsite Wastewater Systems
2012
J
Dissolved
2016, 2014,
L
Oxygen
2012
RIO COAMO
RIO COAMO
59.0
SD
NS
5
5
5
5
J
H
Agriculture
Chromium VI
2020
PRSR57A2
50106500
Collection System Failure
Enterococcus
2020, 2018
Confined Animal Feeding
pH
2020
Operations
Total, Nitrogen
2020, 2016
Landfill
Total,
2018
Minor Industrial Point Sources
Phosphorus
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO CUYON
49.2
SD
SPD
4a
4a
5
3
D
H
Agriculture
Temperature
2020
PRSR57B
50106000
J
-197-
-------
Puerto Rico 2020 305(b) and 303(d) Integrated Report
Note: The 2020 303
2020 Cycle 303(d) List - List of Rivers and Streams
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
0
i_
a.
Potential Pollution Sources
Collection System Failure
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO
RIO bucanA-
27.8
SD
NS
5
5
5
5
J
M
Collection System Failure
Chromium VI
2020
BUCANA-
CERRILLOS
50114400
Onsite Wastewater Systems
Dissolved
2020, 2018
CERRILLOS
PRSR62A1
Surfaces Mining
Oxygen
Urban Runoff/Storm Sewers
Enterococcus
2020, 2018
Temperature
2020
Total,
2018
Phosphorus
Turbidity
2018
RIO bucanA-
32.6
SD
NS
5
5
5
5
J
M
Agriculture
Chromium VI
2020
CERRILLOS
50113800
Minor Industrial Point Sources
Enterococcus
2020, 2018
PRSR62A2
Onsite Wastewater Systems
PH
2020
Total,
2020
Phosphorus
Turbidity
2020
RIO
RIO
54.0
SD
NS
5
5
5
5
J
M
Collection System Failure
Ammonia
2018
PORTUGUES
PORTUGUES
50116200
Minor Industrial Point Sources
Chromium VI
2020
PRSR63A
Onsite Wastewater Systems
Enterococcus
2020, 2018
Urban Runoff/Storm Sewers
Temperature
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
-198 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Turbidity
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
RIO MATILDE
RIO MATILDE -
43.2
SD
SPD
4a
4a
5
3
D
M
Agriculture
Temperature
2020
- PASTILLO
PASTILLO
PRSR64A
50119000
J
L
Collection System Failure
Confined Animal Feeding
Operations
Landfills
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO
RIO TALLABOA
59.6
SD
SPD
4a
4a
5
1
D
M
Agriculture
PH
2020
TALLABOA
PRSR65A
50122050
J
L
Collection System Failure
Minor Municipal Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Temperature
2020
RIO
RIO
60.0
SD
NS
5
5
5
5
F
H
Agriculture
Ammonia
2020, 2018,
GUAYANILLA
GUAYANILLA
50124700
Collection System Failure
2014
PRSR67A
Landfill
Chromium VI
2020
Minor Industrial Point Sources
Dissolved
2020, 2016,
Minor Municipal Point Sources
Oxygen
2014, 2012,
Onsite Wastewater Systems
2008
Urban Runoff/Storm Sewers
Enterococcus
2020, 2018
Temperature
2020
Total, Nitrogen
2020, 2018,
2016
-199-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Total,
2020, 2018,
Phosphorus
2016, 2012,
2010, 2008
Turbidity
2020
RIO YAUCO
RIO YAUCO
PRSR68A1
61.4
SD
4a
4a
5
5
D
F
M
Agriculture
Collection System Failure
Dissolved
Oxygen
2014
H
Landfill
Total,
2016, 2012
L
Major Municipal Point Sources
Minor Industrial Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Phosphorus
RIO LOCO
RIO LOCO
PRSR69A1
92.4
SD
SPD
50129600
4a
4a
5
5
D
F
M
Agriculture
Collection System Failure
Confined Animal Feeding
Dissolved
Oxygen
2020, 2016,
2014, 2012,
2006
Operation
Temperature
2020
Landfills
Turbidity
2020
Minor Industrial Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
QUEBRADA
QUEBRADA
1.7
SD
4a
4a
5
3
D
M
Collection System Failure
Dissolved
2016, 2014
ZUMBON
ZUMBON
H
Onsite Wastewater Systems
Oxygen
PRWQ72A
J, L
Surfactants
2012
QUEBRADA
QUEBRADA
1.8
SD
SPD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2020, 2018,
GONZALEZ
GONZALEZ
PRWQ73A
50130100
J
L
Oxygen
2012
- 200 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
QUEBRADA
QUEBRADA
2.7
SD
SPD
4a
4a
5
3
D
M
Onsite Wastewater Systems
Dissolved
2020, 2012
LOS
LOS PAJARITOS
50130150
J
Oxygen
PAJARITOS
PRWQ74A
L
RIO
RIO
119.3
SD
NS
5
5
5
5
F
H
Collection System Failure
Chromium VI
2020
GUANAJIBO
GUANAJIBO
PRWR77A
50138000
Confined Animal Feeding
Operations
Dissolved
Oxygen
2020
Landfill
Enterococcus
2020, 2018
Major Municipal Point Sources
Total,
2020, 2018,
Onsite Wastewater Systems
Phosphorus
2016
Urban Runoff/Storm Sewers
Turbidity
2018, 2016,
2014, 2012,
2010, 2008
RIO ROSARIO
58.3
SD
NS
5
5
5
5
F
H
Agriculture
Chromium VI
2020
PRWR77C
50136700
Collection System Failure
Enterococcus
2020, 2018
Confined Animal Feeding
Pesticides
2012
Operations
Landfills
Minor Municipal Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
RIO VIEJO
21.1
SD
NS
5
5
5
5
F
H
Collection System Failure
Chromium VI
2020
PRWR77D
50135625
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012
Urban Runoff/Storm Sewers
Enterococcus
2020, 2018
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
Total,
2020, 2018,
Phosphorus
2016
Turbidity
2020, 2018,
2016
RIO CUPEYES
8.0
SD
4a
4a
5
5
D
H
Agriculture
Pesticides
2012
PRWR77G
F
H
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
CANO MERLE
CANO MERLE
PRWK78A
1.6
SD
4a
4a
5
3
D
H
M
Collection System Failure
Surfaces Mining
Dissolved
Oxygen
2012
J
Onsite Wastewater Systems
Surfactants
2012
L
Urban Runoff/Storm Sewers
RIOYAGUEZ
RIOYAGUEZ
42.2
SD
NS
5
5
5
1
J
H
Agriculture
Chromium VI
2020
PRWR79A
50139000
Collection System Failure
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Package Plant (Small Flow)
Urban Runoff/Storm Sewers
Enterococcus
2020, 2018
RIO GRANDE
RIO GRANDE
126.0
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
DE ANASCO
DE ANASCO
50146000
Collection System Failure
Copper
2018, 2016
PRWR83A
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
Total,
2018, 2016
Major Municipal Point Sources
Phosphorus
Minor Industrial Point Sources
Turbidity
2020, 2018,
Onsite Wastewater Systems
2016, 2014,
Urban Runoff/Storm Sewers
2012, 2010
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
RIO PRIETO
59.8
SD
4a
4a
5
5
D
H
Agriculture
Pesticides
2012
PRWR83I
H
K
Confined Animal Feeding
Operations
Onsite Wastewater Systems
QUEBRADA
QUEBRADA
6.9
SD
SPD
3
3
5
3
D
L
Confined Animal Feeding
Dissolved
2020, 2018,
LOS RAMOS
LOS RAMOS
PRWQ89A
50146155
L
Operations
Landfill
Onsite Wastewater Systems
Oxygen
2012, 2008
QUEBRADA
QUEBRADA
2.0
SD
3
3
5
3
D
L
Onsite Wastewater Systems
Dissolved
2012
PI LET AS
PILETAS
PRWQ91A
H
L
Oxygen
RIO
RIO
142.6
SD
NS
5
5
5
5
K
H
Agriculture
Chromium VI
2020
CULEBRINAS
CULEBRINAS
50149100
Collection System Failure
Copper
2020
PRWR95A
Confined Animal Feeding
Enterococcus
2020, 2018
Operations
Pesticides
2012
Landfill
Total, Nitrogen
2018
Major Municipal Point Sources
Total,
2020, 2018
Minor Industrial Point Sources
Phosphorus
Minor Municipal Point Sources
Onsite Wastewater Systems
Turbidity
2020, 2018,
2016, 2014,
Urban Runoff/Storm Sewers
2012, 2010,
2008, 2006
QUEBRADA LA
11.8
SD
4a
4a
5
5
D
H
Agriculture
Pesticides
2012
SALLE
H
Confined Animal Feeding
Dissolved
2016
PRWQ95F
K
Operations
Onsite Wastewater Systems
Oxygen
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of Rivers and Streams
Note: The 2020 303
d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses and
Monitoring
Categories
Waterbody
Name
Waterbody
l/>
Stations
Summary
U)
a>
>
+¦»
Causes of
Impairment
Impaired
Cycles
Basin
Size
(miles)
(0
u
NS = Network
SPD = Special
Project
Delisting
R1
R2
VA
AP
+¦»
0
z
,o
CL
Potential Pollution Sources
QUEBRADA EL
7.8
SD
SPD
4a
4a
5
3
D
H
Agriculture
Dissolved
2020, 2016
SALTO
50147630
K
Onsite Wastewater Systems
Oxygen
PRWQ95G
QUEBRADA
5.6
SD
4a
4a
5
5
D
H
Agriculture
Pesticides
2012
GRANDE DE LA
H
Confined Animal Feeding
MAJAGUA
K
Operations
PRWQ95H
Onsite Wastewater Systems
Notes:
A - Watershed that has an approved TMDL for Rio Cibuco, the TMDL was approved on September 2002, the pollutant was Fecal Coliforms.
B - Watershed that has an approved TMDL for Rio de la Plata, the TMDL was approved on September 2003, the pollutant was Fecal Coliforms.
C - Watershed that has an approved TMDL for Rio Grande de Loiza, the TMDL was approved on September 2007, the pollutant was Fecal Coliforms.
D - Watershed and sub watershed that do not have a permanent monitoring station but were included in prior cycles as part of the 303(d) list by a synoptic study or a special
monitoring project.
E - Watershed that has an approved TMDL for Rio Grande de Loiza a TMDL was approved on August 2007, the pollutant was Dissolved Oxygen.
F - Watersheds that have approved TMDL on September 2012, the pollutant was Fecal Coliforms.
G - Watershed that has an approved TMDL. Rio Grande de Loiza, the TMDL was approved on August 2007, the pollutant was Copper.
H - If the Monitoring Station column is left blank, the Assessment Unit was not monitored for 2020 cycle.
I - Watershed that has approved TMDL from Rio Grande de Loiza, a TMDL was approved on August 2007, the pollutant was Ammonia.
J - Watersheds that have approved TMDL on September 2011, the pollutant was Fecal Coliform.
K - Watersheds that have an approved TMDL on September 2010, the pollutant was Fecal Coliforms. The watersheds are Rio Grande de Arecibo, Rio Grande de Manati, Rio Grande de
Anasco and Rio Culebrinas.
L - Watershed and sub watersheds who are or have been under Category 4c, are waterbodies that lack adequate flow, which impaired some of the designated uses.
R1 - Primary Contact Recreation
R2 - Secondary Contact Recreation
AL - Aquatic Life
DW - Raw Sources for Drinking Water
N/A- Not applicable
Priority: H: High Priority: basins including in the Puerto Rico Unified Watershed Assessment and Restoration Activities (PRUWARA), as basins of priority due to the high pollution level
related to all the designated uses.
M: Intermediate Priority: basins that were not including in the PRUWARA and have 50% or more of its waters as impaired for some designated use.
L: Low Priority: basins that were not including in the PRUWARA and have less than 50% of its waters as impaired for some designated use.
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
ESTUARY
Size of waters Impaired by Causes (Monitored Acres for Estuaries)
Causes of Impairments
Size of Waters Impaired (mi2)
Surfactants
1.0130
Arsenic
0.0364
Dissolved Oxygen
1.1210
Temperature
0.0780
Turbidity
0.2932
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
Note: The 2020 303(d
2020 Cycle 303(d) List - List of Estuaries
List is comprised of the causes of impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody Size
mi2
Class
2020
Monitoring
Stations
Designated Uses and
Categories
Summary
Notes
Priority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
R1
R2
VA
AP
RIO HERRERA
PRER15A
RIO HERRERA
PREE15A
0.102
SB
4a
4a
5
N/A
D
F, H
M
Landfill
Onsite Wastewater Systems
Surfactants
2012
RIO ESPIRITU
SANTO
PRER16A
RIO ESPIRITU
SANTO
PREE16A
0.5758
SB
4a
4a
5
N/A
D
F
H
M
Collection System Failure
Onsite Wastewater Systems
Surfactants
2012
Dissolved
Oxygen
2012, 2006
RIO
DEMAJAGUA
PRER23A
RIO
DEMAJAGUA
PREE23A
0.0028
SB
4a
4a
5
N/A
D
H
J
M
Collection System Failure
Urban Runoff/Storm Sewers
Turbidity
2012
RIO
CANDELERO
PRER34A
RIO
CANDELERO
PREE34A
0.078
SB
4a
4a
5
N/A
D
F
H
M
Collection System Failure
Dissolved
Oxygen
2006
Temperature
2012
RIO GUAYANES
PRER35A
RIO GUAYANES
PREE35A
0.0364
SB
4a
4a
5
N/A
F
H
M
Agriculture
Collection System Failure
Onsite Wastewater Systems
Arsenic
2010,
2008, 2006
Turbidity
2010
CANO
SANTIAGO
PREK35.1
CANO
SANTIAGO
PREE35.1
0.1152
SB
4a
4a
5
N/A
D
F
H
M
Agriculture
Collection System Failure
Landfill
Major Municipal Point Sources
Minor Industrial Point Sources
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Surfactants
2012
Dissolved
Oxygen
2012, 2006
Turbidity
2012
RIO MATILDE-
PASTILLO
PRSR64A
RIO MATILDE-
PASTILLO
PRSE64A
0.0432
SB
4a
4a
5
N/A
D
H
J, L
M
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Turbidity
2012
RIO TALLABOA
PRSR65A
RIO TALLABOA
PRSE65A
0.0336
SB
4a
4a
5
N/A
D
H
J, L
M
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Turbidity
2012
CANO MERLE
CANO MERLE
0.158
SB
4a
4a
5
N/A
D
M
Collection System Failure
Surfactants
2014
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
Note: The 2020 303(d
2020 Cycle 303(d) List - List of Estuaries
List is comprised of the causes of impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody Size
mi2
Class
2020
Monitoring
Stations
Designated Uses and
Categories
Summary
Notes
Priority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
R1
R2
VA
AP
PRWK78A
PRWE78A
H
J, L
CANO
BOQUILLA
PRWK82A
CANO
BOQUILLA
PRWE82A
0.062
SB
3
3
5
N/A
D,
H, L
L
Onsite Wastewater Systems
Surfactants
2012
Dissolved
Oxygen
2012
Turbidity
2012
QUEBRADA
GRANDE DE
CALVACHE
PRWQ88A
QUEBRADA
GRANDE DE
CALVACHE
PRWE88A
0.002
SB
4a
4a
5
N/A
D
H
L
O
M
Urban Runoff/Storm Sewers
Dissolved
Oxygen
2016,
2012, 2008
RIO GUAYABO
PRWR94A
RIO GUAYABO
PRWE94A
0.0288
SB
4a
4a
5
N/A
D
H
J
M
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Dissolved
Oxygen
2012, 2008
Notes:
D - Watershed and sub watershed that do not have a permanent monitoring station but were included in prior cycles as part of the 303(d) list by a synoptic study or a special monitoring project.
F - Watersheds that have approved TMDL on September 2012, the pollutant was Fecal Coliforms.
H - If the Monitoring Station column is left blank, the Assessment Unit was not monitored for 2020 cycle.
J - Watersheds that have approved TMDL on September 2011, the pollutant was Fecal Coliform.
L - Watershed and sub watersheds who are or have been under Category 4c, are waterbodies that lack adequate flow, which impaired some of the designated uses.
O - Watershed that have approved TMDL on February 2012, the pollutant was Fecal Coliforms.
R1 - Primary Contact Recreation
R2 - Secondary Contact Recreation
AL- Aquatic Life
DW - Raw Source for Drinking Water
N/A- Not applicable
Priority: M: Intermediate Priority: basins that were not including in the PRUWARA and have 50% or more of its waters as impaired for some designated use.
L: Low Priority: basins that were not including in the Puerto Rico Unified Watershed Assessment and Restoration Activities (PRUWARA) and have less than 50% of its waters as
impaired for some designated use.
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
SAN JUAN BAY ESTUARY
Size of waters Impaired by Causes San Juan Bay Estuary System
Causes of Impairments
Size of Waters Impaired (mi2, miles)
Surfactants
3.8340 mi2, 18.8 mi
Arsenic
18.8 mi
Copper
0.1009 mi2, 18.8 mi
Chromium
3.8340 mi2
Lead
0.1009 mi2, 18.8 mi
Mercury
18.8 mi
Selenium
18.8 mi
Ammonia
3.8340 mi2
Total, Nitrogen
3.8340 mi2
Total, Phosphorous
3.8340 mi2, 18.8 mi
pH
3.7331 mi2, 18.8 mi
Dissolved Oxygen
3.8340 mi2, 18.8 mi
Temperature
3.8340 mi2, 18.8 mi
Enterococcus
3.8340 mi2, 18.8 mi
Fecal Coliforms
3.7331 mi2
Oil and Grease
3.8340 mi2, 18.8 mi
Turbidity
3.8340 mi2, 18.8 mi
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of San Juan Bay Estuary System
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses
Waterbody
Monitoring
and Categories
>»
Basin
Waterbody
Size
Class
Stations
Summary
Ol
4-"
£
Potential Pollution Sources
Causes of
Impaired
Name
(mi2, miles)
NS = Network
ED = External
Data
R1
R2
VA
AP
O
z
0
a.
Impairment
Cycles
ESTUARY
PREE13A1
18.8 miles
ED-BSJ 1, 2, 3
5
5
5
N/A
F
M
Collection System Failure
Surfactants
2006
SYSTEM
Cano Control
LC 1, 2
M
Confined Animal Feeding
Arsenic
2006
de La Malaria
CSA
Operations
Copper
2006
Bahia de San
La Malaria
Major Industrial Point Sources
Lead
2006
Juan
PLE
Major Municipal Point Sources
Mercury
2006
Cano San
Marinas and Recreational
Selenium
2006
Antonio
Laguna Del
Boating
Minor Industrial Point Sources
Total,
Phosphorus
2018
Condado
Peninsula La
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
PH
2018, 2016,
2014, 2012,
Esperanza
2006
Dissolved
2018, 2016,
Oxygen
2014, 2012,
2010, 2006
Temperature
2018, 2016,
2014, 2006
Enterococcus
2018, 2016,
2014, 2012
Oil & Grease
2018, 2016,
2014, 2012,
2010
Turbidity
2018, 2016,
2014, 2012,
2010
PREE13A2
0.1009 mi2
NS
5
5
5
5
F
H
Collection System Failure
Surfactants
2020
Rio Piedras
89027
M
Confined Animal Feeding
Copper
2020
Lago Las
50049100
Operations
Chromium VI
2020
Curias
Landfill
Lead
2020
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of San Juan Bay Estuary System
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(mi2, miles)
\A
2020
Monitoring
Stations
NS = Network
ED = External
Data
ED-RP 01, 02,
03
RPN
Lago Las Curias
Designated Uses
and Categories
Summary
R1 R2 VA AP
\r>
0)
O
'Z
CL
Potential Pollution Sources
Urban Runoff/Storm Sewers
Causes of
Impairment
Impaired
Cycles
Ammonia
2020, 2014,
2012, 2010,
2008, 2006
Total,
Phosphorus
2020, 2018,
2016
Total, Nitrogen
2020, 2018,
2016
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
Temperature
2018, 2016,
2014
Enterococcus
2020, 2018
Oil & Grease
2018, 2016,
2014, 2012,
2010
Turbidity
2020, 2018,
2014, 2012,
2010, 2008,
2006
PREE13A3
Cano Martin
Pena
Quebrada
Juan Mendez
Quebrada San
Anton
Quebrada
3.7331 mi2
SD
NS
50050300
ED - CS 1, 2
CMP
LSJ 1, 2
Blasina
San Anton
N/A
M
Collection System Failure
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Surfactants
2020, 2016
Chromium VI
2020
Ammonia
2020, 2018,
2016
Total,
Phosphorus
2020, 2018,
2016
Total, Nitrogen
2020, 2018,
2016
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List
- List of San Juan Bay Estuary System
Note: The 2020 303(d) List is compi
ised of the causes ofim
bairmei
its included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
2020
Designated Uses
Waterbody
Monitoring
and Categories
>
Basin
Waterbody
Size
Class
Stations
Summary
0)
'C
Potential Pollution Sources
Causes of
Impaired
Name
(mi2, miles)
NS = Network
ED = External
Data
R1
R2
VA
AP
O
z
0
z
CL
Impairment
Cycles
Blasina
Laguna
PH
2018, 2016,
Canal
Los Corozos
2014, 2012,
Machicote
Laguna
2010, 2006
Canal Suarez
Torrecillas 1, 2,
Dissolved
2020, 2018,
Laguna San
3
Oxygen
2016, 2014,
Jose
2012, 2010,
Laguna
2008, 2006
Torrecillas
Temperature
2018, 2016,
Laguna de
2014, 2012
Pinones
Fecal Coliform
2016, 2014,
Laguna Los
2012, 2010,
Corozos
2008, 2006
Enterococcus
2020, 2018,
2014, 2012
Oil & Grease
2018, 2016,
2014, 2012,
2010
Turbidity
2018, 2016,
2014, 2012,
2010, 2006
Notes:
F - Watersheds that have approved TMDL on September 2012, the pollutant was Fecal Coliforms.
M- External Data
R1 - Primary Contact Recreation
R2 - Secondary Contact Recreation
AL - Aquatic Life DW - Raw Sources for Drinking Water
N/A- Not applicable
Priority: H: High Priority: basins including in the Puerto Rico Unified Watershed Assessment and Restoration Activities (PRUWARA), as basins of priority due to the high pollution
level related to all the designated uses.
M: Intermediate Priority: basins that were not including in the PRUWARA and have 50% or more of its waters as impaired for some designated use.
L: Low Priority: basins that were not including in the PRUWARA and have less than 50% of its waters as impaired for some designated use.
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
LAGOONS
Size of waters Impaired by Causes (Monitored Acres for Lagoons)
Causes of Impairments
Size of Waters Impaired (mi2)
Copper
2.6172
pH
1.2703
Dissolved Oxygen
3.8781
Temperature
0.4016
Enterococcus
0.5250
Turbidity
1.4344
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lagoons
Note: The 2020 303(d) List is comprised of the impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, and 2008.
Waterbody Name
AU- ID
Waterbody Size
(mi2)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
R1
R2
VA
LAGUNAJOYUDAS
PRWN0005
0.5297
SB
4a
4a
5
H
J
M
Onsite Wastewater Systems
Unknown Source
Urban Runoff/Storm Sewers
Copper
2014
Dissolved
Oxygen
2014
LAGUNA
TORTUGUERO
PRNN0006
0.8656
SB
3
3
5
H
L
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Dissolved
Oxygen
2014, 2012
LAGUNA MATA
REDONDA
PRNN0007
0.0234
SB
3
3
5
H
L
Urban Runoff/Storm Sewers
PH
2014
Dissolved
Oxygen
2014
LAGUNA AGUAS
PRIETAS
PREN0011
0.2
SB
3
3
5
H
L
Unknown Source
Copper
2014
Dissolved
Oxygen
2014
Turbidity
2014
LAGUNA GRANDE
PREN0012
0.3375
SB
5
5
5
H
M
Marinas and Recreational
Boating
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
PH
2008
Dissolved
Oxygen
2014, 2008
Enterococcus
2014
LAGUNA CEIBA
PREN0013
0.1875
SB
5
5
5
H
M
Unknown Sources
Copper
2014
PH
2014
Dissolved
Oxygen
2014
Enterococcus
2014
LAGUNA POZUELO
PRSN0014
0.0547
SB
3
3
5
H
L
Unknown Source
Urban Runoff/Storm Sewers
Copper
2014
PH
2014
Dissolved
Oxygen
2014
Temperature
2014
LAGUNA MAR NEGRO
PRSN0015
0.325
SB
3
3
5
H
L
Unknown Source
Urban Runoff/Storm Sewers
Copper
2014
PH
2014
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lagoons
Note: The 2020 303(d) List is comprised of the impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, and 2008.
Waterbody Name
AU- ID
Waterbody Size
(mi2)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
R1
R2
VA
Dissolved
Oxygen
2014
LAGUNA PUNTA
ARENAS
PRSN0016
0.0281
SB
3
3
5
H
L
Unknown Source
Urban Runoff/Storm Sewers
Copper
2014
Dissolved
Oxygen
2014
Temperature
2014
Turbidity
2014
LAGUNA TIBURONES
PRSN0017
0.0219
3
3
5
H
L
Landfill
Unknown Source
Copper
2014
PH
2014
Dissolved
Oxygen
2014
Temperature
2014
Turbidity
2014
LAGUNA SALINAS
PRSN0018
0.1203
3
3
5
H
L
Onsite Wastewater Systems
Unknown Source
Copper
2014
Dissolved
Oxygen
2014
LAGUNA SALINAS 1
(FRATERNIDAD)
PRSN0019
0.4594
3
3
5
H
L
Onsite Wastewater Systems
Unknown Source
Copper
2014
Dissolved
Oxygen
2014
Turbidity
2014
LAGUNA CABO ROJO
2 (CANDELARIA)
PRSN0020
0.2969
SB
3
3
5
H
L
Unknown Source
Copper
2014
Dissolved
Oxygen
2014
Temperature
2014
Turbidity
2014
LAGUNA CABO ROJO
3 (EL FARO)
PRSN0021
0.1078
SB
3
3
5
H
L
Unknown Source
Copper
2014
Dissolved
Oxygen
2014
Turbidity
2014
CANO BOQUERON
PRSN0022
0.2859
SB
3
3
5
H
L
Copper
2014
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lagoons
Note: The 2020 303(d) List is comprised of the impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010, and 2008.
Waterbody Name
AU- ID
Waterbody Size
(mi2)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
R1
R2
VA
Marinas and Recreational
Boating
Minor Industrial Point Sources
PH
2014
Dissolved
Oxygen
2014
Turbidity
2014
LAGUNA
GUANIQUILLA
PRSN0023
0.0344
SB
3
3
5
H
L
Unknown Source
PH
2014
Dissolved
Oxygen
2014
Turbidity
2014
Notes:
H - If the Monitoring Station column is left blank, the Assessment Unit was not monitored for 2020 cycle.
J - Watersheds that have approved TMDL on September 2011, the pollutant was Fecal Coliform.
R1 - Primary Contact Recreation
R2 - Secondary Contact Recreation
AL - Aquatic Life
Priority: L: Low Priority: basins that were not including in the Puerto Rico Unified Watershed Assessment and Restoration Activities (PRUWARA) and have less than 50% of its waters as
impaired for some designated use.
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
LAKES
Size of waters Impaired by Causes (Monitored acres/miles for Lakes)
Causes of Impairments
Size of Waters Impaired (acres)
Pesticides
2,133
Surfactants
634
Arsenic
1,194
Copper
2,500
Lead
1,726
Mercury
35
Total, Phosphorus
7,269
Total, Nitrogen
6,516
pH
6,266
Dissolved Oxygen
7,288
Enterococcus
35
Temperature
3,254
Turbidity
2,458
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lakes
Note: The 2020 303(d) List is comprised of the impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(acres)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
'riority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
NS = Network
R1
R2
VA
AP
RIO
LAGO
1000
SD
NS
4a
4a
5
5
F
H
Confined Animal Feeding
Dissolved
2020, 2018,
GUAJATACA
GUAJATACA
PRNL3A1
10720
10790
10790C
Operations
Onsite Wastewater Systems
Package Plant (small flows)
Oxygen
2016, 2014,
2012, 2010,
2008, 2006
Unknown Source
PH
2020, 2016
Temperature
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
RIO GRANDE
LAGO DOS
634
SD
NS
4a
4a
5
5
K
H
Agriculture
Arsenic
2006
DE ARECIBO
BOCAS
25110
N
Confined Animal Feeding
Copper
2006
PRNLi7Al
27090
27090E
Operations
Minor Industrial Point Sources
Onsite Wastewater Systems
Unknown Source
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
PH
2020, 2018,
2016, 2012
Surfactants
2006
Temperature
2020
Total, Nitrogen
2020, 2018
Total,
2020, 2018
Phosphorus
Turbidity
2020
RIO GRANDE
LAGO
700
SD
NS
4a
4a
5
5
K
H
Agriculture
Copper
2020, 2012
DE ARECIBO
CAONILLAS
PRNL27C1
89001
89002
89003
Onsite Wastewater Systems
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
Pesticides
2008
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lakes
Note: The 2020 303(d) List is comprised of the impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(acres)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
'riority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
NS = Network
R1
R2
VA
AP
PH
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
RIO GRANDE
LAGO
108
SD
NS
4a
4a
5
5
K
H
Agriculture
Copper
2020
DE ARECIBO
GARZAS
PRNLs7A3
20050
Onsite Wastewater Systems
Unknown Source
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2006
Lead
2020
Pesticides
2008
PH
2018
Total,
2018
Phosphorus
RIO GRANDE
LAGO
54
SD
4a
4a
5
5
H
H
Agriculture
Dissolved
2012, 2010,
DE MANATI
GUINEO
K
Onsite Wastewater Systems
Oxygen
2006
PRNL18CI
Pesticides
2008
RIO GRANDE
LAGO
77
SD
NS
4a
4a
5
5
K
H
Agriculture
Copper
2020
DE MANATI
MATRULLAS
PRNL28CI
89009
89010
Confined Animal Feeding
Operations
Onsite Wastewater Systems
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010
Unknown Source
Lead
2020
PH
2020, 2018,
2014, 2012,
2010, 2006
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
SD
4a
4a
5
5
B
H
Collection System Failure
Arsenic
2006
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lakes
Note: The 2020 303(d) List is comprised of the impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(acres)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
'riority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
NS = Network
R1
R2
VA
AP
RIO DE LA
LAGO DE LA
560
NS
N
Confined Animal Feeding
Dissolved
2020, 2018,
PLATA
PLATA
PRELilOAl
44400
44950
44950C
Operations
Landfill
Onsite Wastewater Systems
Oxygen
2016, 2014,
2012, 2010,
2008, 2006
Lead
2020
PH
2020, 2018,
2016
Temperature
2020
Total, Nitrogen
2020
Total,
2020, 2018,
Phosphorus
2016, 2006
Turbidity
2016
RIO DE LA
LAGO CARITE
333
SD
NS
4a
4a
5
5
B
H
Confined Animal Feeding
Dissolved
2020, 2018,
PLATA
PREL2IOA5
39900
39950
39950C
Operations
Onsite Wastewater Systems
Oxygen
2016, 2014,
2012, 2010,
2006
PH
2020
Total,
2020, 2018
Phosphorus
RIO
LAGO CIDRA
268
SD
NS
4a
4a
5
5
F
H
Collection System Failure
Copper
2020
BAYAMON
PREL12A2
89029
89030
89031
Confined Animal Feeding
Operations
Minor Industrial Point Sources
Onsite Wastewater Systems
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
Lead
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lakes
Note: The 2020 303(d) List is comprised of the impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(acres)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
'riority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
NS = Network
R1
R2
VA
AP
RIO GRANDE
LAGO LOIZA
713
SD
NS
4a
4a
5
5
c
H
Collection System Failure
Copper
2020, 2014,
DE LOIZA
PREL14A1
57500
Confined Animal Feeding
2012
58800
Operations
Dissolved
2020, 2018,
58800D
Onsite Wastewater Systems
Urban Runoff/Storm Sewers
Oxygen
2016, 2014,
2012, 2010,
2008
Lead
2012
PH
2020
Temperature
2020
Total, Nitrogen
2020, 2018
Total,
2020, 2018
Phosphorus
Turbidity
2020, 2018,
2016, 2014,
2012, 2010,
2008
RIO GRANDE
LAGO
312
SD
NS
4a
4a
5
5
j
H
Agriculture
Dissolved
2020, 2018,
DE PATILLAS
PATILLAS
PRSL43A1
89022
89023
89024
Onsite Wastewater Systems
Unknown Source
Oxygen
2016, 2014,
2012, 2010,
2008, 2006
PH
2020
Pesticides
2008
Temperature
2020
Total,
2020, 2018
Phosphorus
QUEBRADA
LAGO
35
SD
NS
4a
4a
5
5
j
M
Agriculture
Enterococcus
2020
MELANIA
MELANIA
89026
Onsite Wastewater Systems
Mercury
2020
PRSL50A
Unknown Source
Pesticides
2008
Temperature
2020
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lakes
Note: The 2020 303(d) List is comprised of the impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(acres)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
'riority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
NS = Network
R1
R2
VA
AP
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
RIO
LAGO
373
SD
NS
4a
4a
5
5
F
M
Agriculture
Dissolved
2020, 2018,
JACAGUAS
GUAYABAL
PRSL16OAI
89011
89012
89013
Collection System Failure
Minor Industrial Point Sources
Onsite Wastewater Systems
Oxygen
2016, 2014,
2012, 2010,
2008, 2006
Pesticides
2008
PH
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
RIO
LAGO TOA
836
SD
NS
4a
4a
5
5
F
M
Agriculture
Dissolved
2020, 2018,
JACAGUAS
VACA
PRSL26OAI
89014
89015
89016
Onsite Wastewater Systems
Oxygen
2016, 2014,
2012, 2010,
2008
PH
2020, 2016
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
PH
2020, 2016
RIO
LAGO
700
SD
NS
4a
4a
5
5
J
M
Unknown Source
Dissolved
2020, 2018,
BUCANA-
CERRILLOS
89032
Urban Runoff/Storm Sewers
Oxygen
2016, 2014,
CERRILLOS
PRSL62A1
89033
89034
2012, 2010,
2008, 2006
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Lakes
Note: The 2020 303(d) List is comprised of the impairments included in assessments cycles 2020, 2018, 2016, 2014, 2012, 2010, 2008 and 2006.
Basin
Waterbody
Name
Waterbody
Size
(acres)
Class
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
'riority
Potential Pollution Sources
Causes of
Impairment
Impaired
Cycles
NS = Network
R1
R2
VA
AP
RIO YAUCO
LAGO
LUCHETTI
PRSL68A1
266
SD
NS
89017
89018
89019
4a
4a
5
5
F
M
Agriculture
Onsite Wastewater Systems
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2008, 2006
PH
2020, 2018
Pesticides
2008
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
Turbidity
2020
RIO LOCO
LAGO LOCO
PRSL69A
69
SD
NS
89021C
4a
4a
5
5
F
M
Onsite Wastewater Systems
Dissolved
Oxygen
2020, 2018,
2016, 2014,
2012, 2010,
2008
PH
2020
Total, Nitrogen
2020
Total,
2020, 2018
Phosphorus
RIO GRANDE
LAGO GUAYO
285
SD
NS
4a
4a
5
5
K
H
Agriculture
Dissolved
2020, 2018,
DE ANASCO
PRWL83H
89004
89005
89006
Confined Animal Feeding
Operations
Major Industrial Point Sources
Oxygen
2016, 2014,
2012, 2010,
2008, 2006
Minor Municipal Point Sources
Pesticides
2008
Onsite Wastewater Systems
PH
2020, 2018
Total, Nitrogen
2020, 2018
Total,
2020, 2018
Phosphorus
Turbidity
2020
Notes:
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
B - Watershed that has an approved TMDL for Rio de la Plata, the TMDL was approved on September 2003, the pollutant was Fecal Coliforms.
C - Watershed that has an approved TMDL for Rio Grande de Loiza, the TMDL was approved on September 2007, the pollutant was Fecal Coliforms.
F - Watersheds that have approved TMDL on September 2012, the pollutant was Fecal Coliforms.
H - If the Monitoring Station column is left blank, the Assessment Unit was not monitored for 2020 cycle.
J - Watersheds that have approved TMDL on September 2011, the pollutant was Fecal Coliform.
K - Watersheds that have an approved TMDL on September 2010, the pollutant was Fecal Coliforms. The watersheds are Rio Grande de Arecibo, Rio Grande de Manati, Rio Grande de
Anasco and Rio Culebrinas.
N- Remains in 2020 303 (d) List due to old segmentation evaluation.
R1 - Primary Contact Recreation
R2 - Secondary Contact Recreation
AL - Aquatic Life
DW - Raw Source for Drinking Water
Priority: H: High Priority: basins including in the Puerto Rico Unified Watershed Assessment and Restoration Activities (PRUWARA), as basins of priority due to the high pollution level
related to all the designated uses.
M: Intermediate Priority: basins that were not including in the PRUWARA and have 50% or more of its waters as impaired for some designated use.
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
COASTAL SHORELINE
Size of Waters Impaired by Causes Coastal Shoreline
Causes of Impairment
Size of Waters Impaired
(miles)
Nickel
170.90
Thallium
203.74
Arsenic
49.19
Copper
380.83
Lead
152.17
Mercury
213.37
Zinc
43.8
pH
176.26
Dissolved Oxygen
118.61
Temperature
249.74
Enterococcus
277.18
Fecal Coliforms
7.79
Turbidity
422.37
Oil and Grease
82.42
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
i_
Q.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
PRNC01
11.75
SB
NS
1
1
5
L
Onsite Wastewater
Copper
2020
Punta Borinquen
MAC-044, SBZ-
Systems
Thallium
2020
to Punta Sardina
003, SBZ-004,
SBZ-005
PRNC02
14.10
SB
NS
5
5
5
L
Major Industrial
Copper
2020, 2018
Punta Sardina to
MAC-047
Point Sources
Thallium
2020
Punta Manglillo
MAC-086
Onsite Wastewater
Lead
2020
SBZ-006
Systems
Urban
Enterococci
2020, 2018, 2014, 2010
Runoff/Storm
Sewers
Turbidity
2020, 2018, 2016, 2014,
2012
PRNC03
9.65
SB
NS
5
5
5
L
Collection System
Copper
2020
Punta Manglillo
SBZ-007
Failure
Enterococci
2020,2018
to Punta
SEG3-01
Onsite Wastewater
Temperature
2020
Morrillos
Systems
Upstream
Impoundment
Urban
Runoff/Storm
Sewers
Turbidity
2018, 2016
PRNC04
13.66
SB
NS
5
5
5
L
Collection System
Copper
2020, 2018
Punta Morrillos
MAC-049
Failure
to Punta Manati
MAC-055
Onsite Wastewater
Mercury
2020
SBZ-008
Systems
Nickel
2020
Upstream
Impoundment
Urban
Runoff/Storm
Sewers
Dissolved
Oxygen
2016
Enterococci
2018
pH
2018
Thallium
2020, 2018
Turbidity
2020, 2018, 2016, 2014,
2012
PRNC05
7.46
SB
NS
5
5
5
L
Unknown Source
Copper
2020, 2018
-225-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
Assessment Unit
Size of
AU
(miles)
V)
l/>
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
Punta Manati to
SBZ-010
Mercury
2020
Punta Chivato
SEG5-01
Thallium
2020
Enterococci
2020, 2018
pH
2020, 2018
Temperature
2020
Turbidity
2018
PRNC06
3.23
SB
NS
5
5
5
L
Onsite Wastewater
Copper
2018
Punta Chivato to
MAC-087
Systems
Mercury
2020
Punta Cerro
RW23
Unknown Source
Enterococci
2020, 2018
Gordo
Urban
Temperature
2020
Runoff/Storm
Sewers
Turbidity
2018
PRNC07
5.05
SB
NS
1
1
5
K
L
Onsite Wastewater
Copper
2020, 2018
Punta Puerto
Nuevo to Punta
Cerro Gordo
MAC-088 SEG7-
01
RW-17
Systems
Unknown Source
Urban
Runoff/Storm
Sewers
Mercury
2018
pH
2020
Temperature
2020
Turbidity
2020, 2018
PRNC08
Punta Cerro
Gordo to Punta
Boca Juana
7.32
SB
NS
SBZ-013
SBZ-014
RW-18
5
5
5
L
Onsite Wastewater
Systems
Unknown Source
Urban
Runoff/Storm
Sewers
Arsenic
2020
Lead
2020
Copper
2020, 2018
Nickel
2020
Zinc
2020
Enterococci
2020, 2018
Turbidity
2020, 2018, 2016
PREC09
5.78
SB
NS
1
1
5
L
Onsite Wastewater
Arsenic
2020
Punta Boca Juana
MAC-077
Systems
Copper
2020, 2018
to Punta Salinas
SEG9-01
RW-19
Unknown Source
Urban
Lead
2020
Runoff/Storm
Nickel
2020, 2018
Sewers
Turbidity
2020, 2018, 2016
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
Assessment Unit
Size of
AU
(miles)
V)
l/>
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential
Causes of
Years Impaired
ID (AU)
u
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
PREC10B
2.91
SB
NS
5
5
5
L
Major Industrial
Copper
2020, 2018
Punta Salinas to
MAC-063
Point Sources
Enterococci
2020, 2018, 2016, 2014
Rio Bayamon
Onsite Wastewater
Lead
2020, 2018
Mouth
Systems
Mercury
2020, 2018
Urban
Nickel
2020, 2018
Runoff/Storm
Sewers
Turbidity
2020, 2018, 2016, 2014
PREC10C
6.63
SB
NS
5
5
5
L
Major Industrial
Copper
2020, 2018
Rio Bayamon
SEG10C-01
Point Sources
Enterococci
2020, 2018
Mouth to Isla de
SEG10C-02
Onsite Wastewater
Lead
2020, 2018
Cabras
Systems
Mercury
2020, 2018
Urban
Runoff/Storm
Sewers
Nickel
2020, 2018
Zinc
2020
Thallium
2020
pH
2018
Temperature
2020
Turbidity
2020 ,2018, 2016
PREC11
7.79
SB
5
5
5
H
L
Major Industrial
Arsenic
2010
Isla de Cabras to
Point Sources
Copper
2010
Punta Del Morro
Major Municipal
Point Sources
Dissolved
Oxygen
2010
Minor Municipal
Point Sources
Marinas and
Recreational
Boating
Onsite Wastewater
Systems
Urban
Runoff/Storm
Sewers
Fecal Coliform
2010
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
i_
Q.
Potential
Causes of
Years Impaired
ID (AU)
u
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
PREC13
4.31
NS
5
5
5
L
Urban
Copper
2020
East side of
SB
B-l
Runoff/Storm
Enterococci
2020, 2018
Condado Bridge
B-2
Sewers
Lead
2020
to Punta Las
RW-26
Mercury
2020
Marias
RW-27
Thallium
2020
Temperature
2020
Turbidity
2020, 2018, 2016
PREC14
4.19
SB
NS
1
1
5
L
Marinas and
Arsenic
2020
Punta Las Marias
EB-40, B-3,
Recreational
Lead
2020
to Punta
SEG14-01
Boating
Copper
2020
Cangrejos
SEG14-02, RW-
Urban
Thallium
2020
21C
Runoff/Storm
Temperature
2020
Sewers
Turbidity
2020, 2018, 2016, 2014
PREC15
6.23
SB
NS
5
5
5
L
Onsite Wastewater
Arsenic
2020
Punta Cangrejos
SBZ-024
Systems
Copper
2020
to Punta Vacia
SBZ-026
Urban
Mercury
2020
Talega
Runoff/Storm
Nickel
2020
Sewers
Thallium
2020
Enterococci
2020, 2018
Turbidity
2020, 2018, 2016
PREC16
9.46
SB
NS
5
5
5
L
Onsite Wastewater
Arsenic
2020
Punta Vacia
SBZ-027
Systems
Mercury
2020
Talega to Punta
Mquillo
SBZ-028
Urban
Runoff/Storm
Sewers
Copper
2020
Lead
2020
Nickel
2020
Thallium
2020
Zinc
2020
Temperature
2020
Enterococci
2020, 2018
Turbidity
2020, 2018, 2016
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
i_
a.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
PREC17
8.41
SB
NS
1
1
5
L
Onsite Wastewater
Copper
2020
Punta Miquillo to
Punta La Bandera
MAC-009,
SEG17-01
Systems
Urban
Runoff/Storm
Sewers
Mercury
2020
RW-1A
Temperature
2020
Turbidity
2018, 2016
PREC18
10.46
SB
NS
1
1
5
L
Unknown Source
Copper
2020
Punta La Bandera
MAC-010
Thallium
2020
to Cabezas de San
SBZ-030
pH
2018
Juan
RW-2
Temperature
2020
Turbidity
2020, 2018, 2016, 2014,
2012
PREC19
7.08
SB
NS
5
5
5
L
Marinas and
Copper
2020, 2018
Cabezas de San
Juan to Punta
Barrancas
MAC-078
Recreational
Boating
Onsite Wastewater
Systems
Unknown Source
Enterococci
2020, 2018, 2016
Oil & Grease
2014
Temperature
2020
Turbidity
2020, 2018, 2016, 2014
Urban
Runoff/Storm
Sewers
PREC20
5.33
SB
NS
5
5
5
L
Marinas and
Copper
2020
Punta Barrancas
SEG20-01
Recreational
Thallium
2020
to Punta Medio
SEG20-02
Boating
Dissolved
2018, 2016
Mundo
Onsite Wastewater
Oxygen
Systems
Urban
Runoff/Storm
Sewers
Enterococci
2020, 2018
Temperature
2020
Turbidity
2020, 2018, 2016
PREC23
8.33
SB
NS
SEG23-01
1
1
5
L
Major Industrial
Point Sources
Copper
2020
- 229 -
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
i_
a.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
Isla Cabras to
Marinas and
Turbidity
2020, 2016
Punta Cascajo
Recreational
Boating
PREC24
9.07
SB
NS
5
5
5
L
Major Industrial
Copper
2020
Punta Cascajo to
SEG24-02
Point Sources
Dissolved
2018, 2016
Punta Lima
Upstream
Oxygen
Impoundment
Enterococci
2020, 2018
Temperature
2020
Turbidity
2020, 2018, 2016
PREC25
9.83
SB
NS
5
5
5
L
Major Municipal
Copper
2020, 2018
Punta Lima to
MAC-080
Point Sources
Mercury
2020
Morro de
MAC-081
Onsite Wastewater
Temperature
2020
Humacao
SEG25-01
Systems
Urban
Runoff/Storm
Sewers
RW-4, RW-31
Enterococci
2020, 2018
Turbidity
2020, 2018, 2016, 2014,
2012
PREC26
1.84
SB
NS
5
5
5
L
Onsite Wastewater
Copper
2020
Morro de
SEG26-01
Systems
Enterococci
2020, 2018
Humacao to
Urban
Temperature
2020
Punta Candelero
Runoff/Storm
Sewers
Turbidity
2020, 2018, 2016
PREC27
3.74
SB
NS
5
5
5
L
Onsite Wastewater
Arsenic
2020
Punta Candelero
SEG27-01
Systems
Copper
2020
to Punta
Guayanes
Urban
Runoff/Storm
Sewers
Thallium
2020
Enterococci
2020, 2018, 2008
Turbidity
2020, 2018, 2016
PREC28C
4.68
SB
NS
5
5
5
L
Major Industrial
Arsenic
2020
Punta Guayanes
MAC-012
Point Sources
Mercury
2020
to Punta
SBZ-037
Onsite Wastewater
Copper
2020, 2018
Quebrada Honda
Systems
Thallium
2020
Enterococci
2020, 2018
-230-
-------
Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
Assessment Unit
ID (AU)
Size of
AU
(miles)
Class
2020
Monitoring
Stations
NS = Network
ED = External
Data
Designated Uses
and Categories
Summary
Notes
Priority
Potential
Pollution Sources
Causes of
Impairment
Years Impaired
R1
R2
VA
Urban
Runoff/Storm
Sewers
Oil & Grease
2014
Temperature
2020
Turbidity
2020, 2018, 2016, 2014,
2012
PREC28B
Punta Quebrada
Honda to Punta
Yeguas
0.74
SB
NS
SBZ-038
5
5
5
L
Onsite Wastewater
Systems
Unknown Source
Copper
2020, 2018
Thallium
2020
Enterococci
2020, 2018
Turbidity
2020, 2016
PREC29
Punta Yeguas to
Punta Tuna
4.35
SB
NS
SEG29-02
SEG29-01
5
5
5
L
Onsite Wastewater
Systems
Unknown Source
Urban
Runoff/Storm
Sewers
Copper
2020, 2018
Enterococci
2020, 2018
Lead
2018
Thallium
2020
pH
2018
Turbidity
2020, 2018, 2016
PREC30
Punta Tuna to
Cabo Mala
Pascua
2.65
SB
NS
MAC-082
5
5
5
L
Unknown Source
Copper
2020, 2018
Enterococci
2020, 2018, 2016
Turbidity
2020, 2018, 2016, 2014,
2012
PRSC31
Cabo Mala
Pascua to Punta
Viento
4.06
SB
NS
SEG31-01
5
5
5
L
Onsite Wastewater
Systems
Upstream
Impoundment
Urban
Runoff/Storm
Sewers
Copper
2018
Thallium
2020
Turbidity
2020
Temperature
2020
PRSC32
Punta Viento to
Punta Figuras
6.16
SB
NS
MAC-083
SBZ-040
RW-6
RW-7
5
5
5
L
Onsite
Wastewater
Systems
Upstream
Impoundment
Urban
Copper
2020, 2018
Mercury
2020
Thallium
2020
Dissolved
Oxygen
2018, 2016
Enterococci
2020, 2018, 2014, 2010
-231-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
a.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
Runoff/ Storm
Temperature
2020
Sewers
Turbidity
2020, 2018, 2016, 2014
PRSC33
8.10
SB
NS
5
5
5
L
Major Industrial
Copper
2020, 2018
Punta Figuras to
MAC-017
Point Sources
Lead
2020
Punta Ola
SEG33-01
Onsite Wastewater
Mercury
2020
Grande
Systems
Urban
Runoff/Storm
Sewers
Enterococci
2020, 2018
Temperature
2020
Turbidity
2020, 2018, 2016, 2014,
2012, 2008
PRSC34
40.9
SB
NS
5
5
5
M
L
Agriculture
Copper
2020, 2018
Punta Ola
MAC-019
Major Industrial
Lead
2020
Grande to Punta
SEG34-01
Point Sources
Mercury
2020
Petrona
SEG34-02
Onsite Wastewater
Nickel
2020
ED-Stations 09,
10,19 and 20
Systems
Upstream
Dissolved
Oxygen
2018, 2016, 2014, 2012,
2010
from Natural
Impoundment
Enterococci
2020, 2018, 2012, 2010
Reserve of Tobos
Bay"
Urban
Runoff/Storms
sewers
Oil & Grease
2014
pH
2020,2018, 2016, 2014,
2012, 2010
Temperature
2020, 2016, 2014
Turbidity
2020, 2018, 2016, 2014,
2012, 2010
PRSC35
16.19
SB
NS
5
5
5
M
L
Major Municipal
Copper
2020, 2018
Punta Petrona to
MAC-020
Point Sources
Lead
2020
Punta Cabullones
SEG35-01
Onsite Wastewater
Nickel
2020
SEG35-02
Systems
Thallium
2020
ED -CariCoos
Buoy A
Upstream
Impoundment
Urban
Runoff/Storm
Sewers
Zinc
2020
Enterococci
2020, 2018, 2016
Mercury
2020, 2018
Turbidity
2020, 2018, 2016, 2014
-232-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
i_
Q.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
PRSC36B
2.53
SB
NS
1
1
5
L
Major Municipal
pH
2020
Punta Cabullones
SEG36B-01
Point Sources
Temperature
2020
to Punta
Carenero
Marinas and
Recreational
Boating
Onsite Wastewater
Copper
2020, 2018
Mercury
2018
Turbidity
2020, 2018, 2016
Systems
Urban
Runoff/Storm
Sewers
PRSC36C
6.70
SB
NS
5
5
5
L
Major Municipal
Turbidity
2020
Punta Carenero
MAC-022
Point Sources
Copper
2020, 2018
to Punta Cuchara
MAC-023
Marinas and
Recreational
Dissolved
Oxygen
2012
Boating
Enterococci
2020, 2018, 2014
Onsite Wastewater
Systems
Urban
Mercury
2018
Oil & Grease
2014
Runoff/Storm
Sewers
PRSC37B
3.30
SB
NS
5
5
5
L
Surface Mining
Turbidity
2020, 2018, 2016, 2014
Punta Cuchara to
MAC-084
Urban
pH
2020
Cayo P argue ra
Runoff/Storm
Copper
2020, 2018
Sewers
Nickel
2020
Upstream
Enterococci
2020, 2018
Impoundment
Unknown Source
Mercury
2020, 2018
PRSC37C
4.20
SB
NS
5
5
5
L
Major Municipal
Turbidity
2020, 2018, 2016, 2014
Cayo Parguera to
MAC-24
Point Sources
Copper
2020, 2018
Punta Guayanilla
MAC-25
Major Industrial
Mercury
2020
Point Sources
Enterococci
2020, 2018
Surface Mining
Lead
2018
Nickel
2018
-233-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
¦*->
0
z
i_
0
i_
Q.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
Onsite Wastewater
Thallium
2020
Systems
Oil & Grease
2014
Upstream
Impoundment
Marinas and
Zinc
2018
Recreational
Boating
Urban
Runoff/Storm
Sewers
PRSC38
13.20
SB
NS
5
5
5
L
Major Municipal
Copper
2020, 2018
Punta Guayanilla
to Punta Verraco
MAC-027
MAC-028
MAC-089
Point Sources
Marinas and
Recreational
Boating
Onsite Wastewater
Mercury
2020
Thallium
2020
Enterococci
2020, 2018
Oil & Grease
2014
Systems
Turbidity
2020
Upstream
Impoundment
Urban
Temperature
2020, 2018, 2016, 2014
Runoff/Storm
Sewers
PRSC39
6.41
SB
NS
1
1
5
L
Unknown Source
Turbidity
2020, 2018, 2016, 2014,
Punta Verraco to
MAC-030, Seg39-
2012
Punta Ballena
01, G1
Copper
2020
Thallium
2020
PRSC40
13.26
SB
NS
1
1
5
L
Marinas and
Turbidity
2020, 2012
Punta Ballena to
MAC-034
Recreational
Copper
2020
Punta Brea
MAC-085
Boating
RW-9
Minor Municipal
Point Sources
Nickel
2020, 2018
pH
2020, 2018, 2016, 2012
-234-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
Assessment Unit
Size of
AU
(miles)
V)
l/>
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
Onsite Wastewater
Systems
Urban
Runoff/Storm
Sewers
Temperature
2020, 2018, 2012
PRSC41B1
Punta Brea to
10.93
SB
NS
SBZ-045
1
1
5
L
Marinas and
Recreational
Turbidity
2020, 2018, 2016, 2014,
2012
Bahia
SEG41B1-01
Boating
Copper
2020
Fosforescente La
RW-10
Onsite Wastewater
Thallium
2020
Parguera
Systems
Temperature
2020
Urban
Runoff/Storm
Sewers
pH
2020
PRSC41B2
7.00
SB
NS
1
1
5
M
L
Landfill
Copper
2020, 2018
Bahia
SBZ-046
Marinas and
Thallium
2020
Fosforescente La
Parguera to Punta
Seg41B2-01, RW-
33
Recreational
Boating
Dissolved
Oxygen
2020, 2016
Cueva de Ayala
ED - Station
Onsite Wastewater
pH
2020, 2018
MGIP4 from
Systems
Temperature
2020
NOAA, &
CariCoos
Urban
Runoff/Storm
Sewers
Turbidity
2020, 2016
PRSC41B3
13.45
SB
NS
5
5
5
L
Unknown Source
Turbidity
2020, 2018, 2016
Bahia Monsio
SEG41B3-01
Mercury
2020
Jose to Faro de
SEG41B3-02
Thallium
2020
Cabo Rojo
Nickel
2020
Dissolved
Oxygen
2020, 2016
Enterococci
2020, 2018
Temperature
2020
PRWC42
2.89
SB
NS
1
1
5
L
Unknown Source
Turbidity
2020, 2018, 2016
-235-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
a>
+¦»
0
z
i_
0
i_
Q.
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
Faro de Cabo
SEG42-01
Dissolved
2020, 2018, 2016
Rojo to Punta
Oxygen
Aguila
pH
2018
Temperature
2020, 2018
PRWC43
9.54
SB
NS
1
1
5
L
Collection System
Turbidity
2020,2018, 2016
Punta Aguila to
Punta Guaniquilla
MAC-037, SBZ-
047
SBZ-048
RW-12A, RW-
12B,
RW-13, RW-14A
Failure
Marinas and
Recreational
Boating
Minor Municipal
Point Sources
Onsite Wastewater
Systems
Temperature
2020
PRWC44
2.50
SB
NS
1
1
5
L
Onsite Wastewater
Turbidity
2020, 2018, 2016
Punta Guaniquilla
SBZ-050
Systems
Thallium
2020
to Punta La Mela
SBZ-051, RW-8
pH
2020
PRWC45
2.95
SB
NS
5
5
5
L
Collection System
Turbidity
2020, 2018, 2016
Punta La Mela to
SEG45-01
Failure
Copper
2020, 2018
Punta Carenero
Marinas and
Thallium
2020
Recreational
Lead
2020
Boating
Onsite Wastewater
Enterococci
2020, 2018, 2016
Systems
PRWC46
4.00
SB
NS
5
5
5
L
Collection System
Turbidity
2020, 2018, 2016
Punta Carenero
SBZ-052
Failure
Copper
2020
to front of Cayo
Marinas and
Lead
2020
Ratones
Recreational
Thallium
2020
Boating
Enterococci
2018
Onsite Wastewater
Systems
Urban
Temperature
2020
Runoff/Storm
Sewers
-236-
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Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List - List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
Assessment Unit
Size of
AU
(miles)
V)
l/>
2020
Monitoring
Stations
Designated Uses
and Categories
Summary
Notes
Priority
Potential
Causes of
Years Impaired
ID (AU)
U
NS = Network
ED = External
Data
R1
R2
VA
Pollution Sources
Impairment
PRWC47
3.85
SB
NS
1
1
5
L
Onsite Wastewater
Turbidity
2020,2018
In front of Cayo
SEG47-01
Systems
Copper
2020
Ratones to Punta
Guanajibo
Nickel
2020
PRWC48
5.60
SB
NS
5
5
5
L
Onsite Wastewater
Turbidity
2020
Punta Guanajibo
MAC-038
Systems
Copper
2020, 2018
to Punta
MAC-040
Upstream
Lead
2020
Algarrobo
Impoundment
Mercury
2020
Urban
Runoff/Storm
Sewers
Thallium
2020
Dissolved
Oxygen
2012
Enterococci
2020, 2018, 2016, 2014,
2010
Nickel
2020, 2018
Oil & Grease
2014
pH
2018
PRWC49
Punta Algarrobo
to Punta Cadena
6.98
SB
NS
MAC-041
SEG49-01
RW-15
5
5
5
L
Major Municipal
Point Sources
Upstream
Impoundment
Turbidity
2020, 2018, 2016, 2014
Copper
2020, 2018
Nickel
2020
Enterococci
2020, 2018
Runoff/Storm
Sewers
pH
2018, 2012
Onsite Wastewater
Systems
Temperature
2020
PRWC50
4.98
SB
NS
5
5
5
L
Onsite Wastewater
Turbidity
2020, 2018, 2016
Punta Cadena to
SBZ-054
Systems
Copper
2020, 2018
Punta Higiiero
SBZ-055
Unknown Sources
Enterococci
2018
RW-5
Upstream
Lead
2018
Impoundment
Nickel
2020, 2018
Mercury
2020
-237-
-------
Puerto Rico 2020 305(b) and 303(d) Integrated Report
2020 Cycle 303(d) List -
List of Coastal Shoreline
Note: The 2020 303(d) List is comprised of the causes of impairments included
in assessment cycles 2020, 2018, 2016, 2014, 2012, 2010 and 2008.
2020
Designated Uses
Size of
AU
(miles)
Monitoring
and Categories
>
Assessment Unit
l/>
l/>
Stations
Summary
------- |