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On This Page 303(d) Listed Waters for 2012

Data are also available for these cycles:
2002 2004 2006 2008 2010

Waterbody Changes from Prior Cycle

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Puerto Rico Water Quality Assessment Report

Assessed Waters of Puerto Rico by Watershed

Select a watershed from the list:
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Display impaired waters and TMDL information only


NOTE: The data and information provided on this web site may differ from the information provided in the original Puerto Rico 2012 Section 305(b) Report. This is a result of differences in the way the state's assessment database tracks information and how the national data system prepares summary reports. Puerto Rico's 2012 Section 305(b) Water Quality Report is available at http://www2.pr.gov/agencias/jca/Documents/Areas Programáticas/Evaluación y Planificación Estratégica/División de Planes y Proyectos Especiales/Informe Integrado 305(b)-303(d) para el 2012/2012 305(b)303(d) Final Revised on February 2013.pdf. The 2012 303(d) List can be found in Appendix I.



Site-specific Targeted Monitoring Summary Results

Puerto Rico (2012)

Description of this table
 
    209.5 .1 152.1
       98.1
   
                          
                          
                          
                          
    4,978.9 8,441.6 6.2 273.2
           84.9          .1     
                          
           1.7          .0     
           4,892.3     8,441.6     6.0     273.2
              310.9     339.0     .7     .0
                    4,581.4           8,102.6           5.3           273.2
5,188.4 8,441.6 6.3 425.2
5,394.0 12,146.0 Unavailable 550.0
96.2 69.5 Unavailable 77.3

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2012


Statewide Statistical Survey Summary Results

Puerto Rico Rivers and Streams 2012

Description of this table % Fully Supporting    % Not Supporting    % Unassessed    % Not Applicable   
Aquatic Life Support


Fully Supporting 60% ± 2%
Not Supporting 40% ± 2%

Stressors Fully
Supporting
Not
Supporting
Unassessed Not
Applicable
Ammonia color.gifcolor.gifcolor.gif 40% ± 2% 50% ± 2% 10% ± 1%  
Primary Contact Recreation


Fully Supporting 30% ± 1%
Not Supporting 60% ± 2%
Unassessed 10% ± 1%

Stressors Fully
Supporting
Not
Supporting
Unassessed Not
Applicable
Ammonia color.gifcolor.gifcolor.gif 40% ± 2% 50% ± 2% 10% ± 1%  

Where two or more state condition categories fall under one national category, EPA used the largest margin of error for purposes of displaying this information in the report.

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Site-specific Targeted Monitoring Results

Puerto Rico Rivers and Streams 2012

Description of this table

All
Rivers and Streams

5,394.0 Miles of Rivers and Streams

Assessed 5,188.4
Unassessed 205.7
Total Miles 5,394.0







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Description of this table

Assessed
Rivers and Streams

5,188.4 Miles of
Assessed Rivers and Streams

Good 209.5
Threatened .0
Impaired 4,978.9
Total Miles Assessed 5,188.4







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Description of this table

Threatened and Impaired
Rivers and Streams

4,978.9 Miles of
Threatened and Impaired
Rivers and Streams

395.8
.0
1.7
4,581.4
Total Threatened and Impaired 4,978.9

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Puerto Rico Rivers and Streams 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 4,912.7 18.9 .0 81.1 color.gifcolor.gif
Drinking Water Supply 4,739.0 22.4 .0 77.6 color.gifcolor.gif
Primary Contact Recreation 4,898.6 1.5 .0 98.5 color.gifcolor.gif
Secondary Contact (Recr) 4,636.6 2.1 .0 97.9 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Puerto Rico Rivers and Streams 2012

Description of this table
Fecal Coliform Pathogens color.gif 4,307.0
Arsenic Metals (other than Mercury) color.gif 3,409.0
Cyanide Toxic Inorganics color.gif 2,918.6
Turbidity Turbidity color.gif 2,862.4
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 1,751.8
Surfactants Other Cause color.gif 1,749.4
Copper Metals (other than Mercury) color.gif 1,225.6
Lead Metals (other than Mercury) color.gif 841.1
Total Coliform Pathogens color.gif 774.2
Pesticides Pesticides color.gif 544.3
Thermal Modifications Temperature color.gif 480.2
Mercury Mercury color.gif 381.0
pH pH/Acidity/Caustic Conditions color.gif 365.8
Phosphorus Nutrients color.gif 277.1
Ammonia Ammonia color.gif 258.6
Oil and Grease Oil and Grease color.gif 122.6
Cadmium Metals (other than Mercury) color.gif 120.2
Nitrate/Nitrite Nutrients color.gif 70.9
Enterococcus Bacteria Pathogens color.gif 66.7
Selenium Metals (other than Mercury) color.gif 40.8
Flow Alteration(s) Flow Alteration(s) color.gif 23.4
Other Inorganics Toxic Inorganics color.gif 22.0
Silver Metals (other than Mercury) color.gif 14.6

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Site-specific Targeted Monitoring Results

Probable Sources
Puerto Rico Rivers and Streams 2012

Description of this table
Onsite Wastewater Systems (Septic Tanks) Municipal Discharges/Sewage color.gif 4,945.0
Confined Animal Feeding Operations Agriculture color.gif 3,389.6
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 3,070.0
Minor Industrial Point Sources Industrial color.gif 2,604.4
Collection System Failure Municipal Discharges/Sewage color.gif 2,420.8
Agriculture Agriculture color.gif 2,251.2
Landfills Land Application/Waste Sites/Tanks color.gif 2,192.2
Major Municipal Point Sources Municipal Discharges/Sewage color.gif 1,336.8
Minor Municipal Point Source Municipal Discharges/Sewage color.gif 929.1
Package Plant Or Other Permitted Small Flows Discharges Municipal Discharges/Sewage color.gif 481.8
Land Development Construction color.gif 471.7
Surface Mining Resource Extraction color.gif 451.9
Major Industrial Point Sources Industrial color.gif 272.7
Unknown Source Unknown color.gif 172.4
Marinas And Recreational Boating Recreational Boating And Marinas color.gif 18.8
Upstream Impoundment Hydromodification color.gif 11.8

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Site-specific Targeted Monitoring Results

Puerto Rico Lakes, Reservoirs, and Ponds 2012

Description of this table

All
Lakes, Reservoirs, and Ponds

12,146.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 8,441.6
Unassessed 3,704.4
Total Acres 12,146.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

8,441.6 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good .0
Threatened .0
Impaired 8,441.6
Total Acres Assessed 8,441.6







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

8,441.6 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

339.0
.0
.0
8,102.6
Total Threatened and Impaired 8,441.6

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Puerto Rico Lakes, Reservoirs, and Ponds 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 8,102.6 .0 .0 100.0 color.gif
Drinking Water Supply 4,769.6 22.8 .0 77.2 color.gifcolor.gif
Primary Contact Recreation 8,171.6 41.7 .0 58.3 color.gifcolor.gif
Secondary Contact (Recr) 8,171.6 54.5 .0 45.5 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Puerto Rico Lakes, Reservoirs, and Ponds 2012

Description of this table
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 8,102.6
Fecal Coliform Pathogens color.gif 4,766.6
Arsenic Metals (other than Mercury) color.gif 3,470.6
Pesticides Pesticides color.gif 2,133.0
Copper Metals (other than Mercury) color.gif 2,056.6
Cyanide Toxic Inorganics color.gif 1,757.6
pH pH/Acidity/Caustic Conditions color.gif 1,535.6
Surfactants Other Cause color.gif 1,197.6
Turbidity Turbidity color.gif 722.6
Lead Metals (other than Mercury) color.gif 722.6
Phosphorus Nutrients color.gif 560.0
Total Coliform Pathogens color.gif 9.6
Ammonia Ammonia color.gif 9.6
Oil and Grease Oil and Grease color.gif 9.6
Nitrate/Nitrite Nutrients color.gif 9.6
Mercury Mercury color.gif 9.6

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Site-specific Targeted Monitoring Results

Probable Sources
Puerto Rico Lakes, Reservoirs, and Ponds 2012

Description of this table
Onsite Wastewater Systems (Septic Tanks) Municipal Discharges/Sewage color.gif 7,664.6
Agriculture Agriculture color.gif 4,680.0
Confined Animal Feeding Operations Agriculture color.gif 3,594.6
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 2,816.6
Minor Industrial Point Sources Industrial color.gif 2,372.0
Landfills Land Application/Waste Sites/Tanks color.gif 1,642.6
Collection System Failure Municipal Discharges/Sewage color.gif 1,095.6
Upstream Impoundment Hydromodification color.gif 700.0
Major Industrial Point Sources Industrial color.gif 294.6
Marinas And Recreational Boating Recreational Boating And Marinas color.gif 216.0
Minor Municipal Point Source Municipal Discharges/Sewage color.gif 69.0

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Site-specific Targeted Monitoring Results

Puerto Rico Bays and Estuaries 2012

Description of this table
Pie chart not displayed because total size for Bays and Estuaries is unavailable.
Assessed 6.3
Unassessed Unavailable
Total Square Miles Unavailable







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Description of this table

Assessed
Bays and Estuaries

6.3 Square Miles of
Assessed Bays and Estuaries

Good .1
Threatened .0
Impaired 6.2
Total Square Miles Assessed 6.3







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Description of this table

Threatened and Impaired
Bays and Estuaries

6.2 Square Miles of
Threatened and Impaired
Bays and Estuaries

.8
.0
.0
5.3
Total Threatened and Impaired 6.2

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Puerto Rico Bays and Estuaries 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 5.3 5.0 .0 95.0 color.gifcolor.gif
Drinking Water Supply .1 .0 .0 100.0 color.gif
Primary Contact Recreation 6.1 .0 .0 100.0 color.gif
Secondary Contact (Recr) 6.1 2.0 .0 98.0 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Puerto Rico Bays and Estuaries 2012

Description of this table
Fecal Coliform Pathogens color.gif 5.9
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 4.9
Surfactants Other Cause color.gif 4.7
Turbidity Turbidity color.gif 4.1
Total Coliform Pathogens color.gif 4.0
Cyanide Toxic Inorganics color.gif 3.9
pH pH/Acidity/Caustic Conditions color.gif 3.8
Oil and Grease Oil and Grease color.gif 3.8
Copper Metals (other than Mercury) color.gif 3.8
Ammonia Ammonia color.gif 3.8
Lead Metals (other than Mercury) color.gif 3.8
Mercury Mercury color.gif 3.8
Thermal Modifications Temperature color.gif 3.8
Enterococcus Bacteria Pathogens color.gif 3.7
Cadmium Metals (other than Mercury) color.gif 3.7
Phosphorus Nutrients color.gif 3.7
Arsenic Metals (other than Mercury) color.gif .1
Nitrate/Nitrite Nutrients color.gif .1
Flow Alteration(s) Flow Alteration(s) color.gif .0

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Site-specific Targeted Monitoring Results

Probable Sources
Puerto Rico Bays and Estuaries 2012

Description of this table
Onsite Wastewater Systems (Septic Tanks) Municipal Discharges/Sewage color.gif 5.9
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 4.7
Collection System Failure Municipal Discharges/Sewage color.gif 4.3
Confined Animal Feeding Operations Agriculture color.gif 4.2
Landfills Land Application/Waste Sites/Tanks color.gif .7
Major Industrial Point Sources Industrial color.gif .7
Minor Municipal Point Source Municipal Discharges/Sewage color.gif .6
Upstream Impoundment Hydromodification color.gif .3
Agriculture Agriculture color.gif .2
Major Municipal Point Sources Municipal Discharges/Sewage color.gif .1

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Site-specific Targeted Monitoring Results

Puerto Rico Coastal Shoreline 2012

Description of this table

All
Coastal Shoreline

550.0 Miles of Coastal Shoreline

Assessed 425.2
Unassessed 124.8
Total Miles 550.0







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Description of this table

Assessed
Coastal Shoreline

425.2 Miles of
Assessed Coastal Shoreline

Good 152.1
Threatened .0
Impaired 273.2
Total Miles Assessed 425.2







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Description of this table

Threatened and Impaired
Coastal Shoreline

273.2 Miles of
Threatened and Impaired
Coastal Shoreline

.0
.0
.0
273.2
Total Threatened and Impaired 273.2

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Puerto Rico Coastal Shoreline 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 291.5 13.0 .0 87.0 color.gifcolor.gif
Primary Contact Recreation 360.0 81.0 .0 19.0 color.gifcolor.gif
Secondary Contact (Recr) 316.2 100.0 .0 .0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Puerto Rico Coastal Shoreline 2012

Description of this table
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 205.1
Turbidity Turbidity color.gif 150.6
pH pH/Acidity/Caustic Conditions color.gif 137.9
Enterococcus Bacteria Pathogens color.gif 98.6
Fecal Coliform Pathogens color.gif 85.7
Thermal Modifications Temperature color.gif 49.7
Copper Metals (other than Mercury) color.gif 7.8
Ammonia Ammonia color.gif 7.8
Arsenic Metals (other than Mercury) color.gif 7.8

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Site-specific Targeted Monitoring Results

Probable Sources
Puerto Rico Coastal Shoreline 2012

Description of this table
Onsite Wastewater Systems (Septic Tanks) Municipal Discharges/Sewage color.gif 238.9
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 237.1
Upstream Impoundment Hydromodification color.gif 106.8
Major Industrial Point Sources Industrial color.gif 85.2
Major Municipal Point Sources Municipal Discharges/Sewage color.gif 67.5
Marinas And Recreational Boating Recreational Boating And Marinas color.gif 64.6
Agriculture Agriculture color.gif 41.0
Minor Municipal Point Source Municipal Discharges/Sewage color.gif 30.6
Collection System Failure Municipal Discharges/Sewage color.gif 23.2
Unknown Source Unknown color.gif 19.5
Landfills Land Application/Waste Sites/Tanks color.gif 2.9

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Puerto Rico Causes of Impairment for Reporting Year 2012


Description of this table
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Size of Assessed Waters with Listed Causes of Impairment
Ammonia 258.6 9.6 3.8 7.8
Flow Alteration(s) 23.4 .0
Mercury 381.0 9.6 3.8
Metals (other than Mercury) 3,468.7 4,170.6 3.8 7.8
Nutrients 348.0 569.6 3.8
Oil and Grease 122.6 9.6 3.8
Organic Enrichment/Oxygen Depletion 1,751.8 8,102.6 4.9 205.1
Other Cause 1,749.4 1,197.6 4.7
Pathogens 4,822.3 4,766.6 6.1 109.3
Pesticides 544.3 2,133.0
pH/Acidity/Caustic Conditions 365.8 1,535.6 3.8 137.9
Temperature 480.2 3.8 49.7
Toxic Inorganics 2,940.6 1,757.6 3.9
Turbidity 2,862.4 722.6 4.1 150.6

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Puerto Rico Probable Sources Contributing to Impairments
for Reporting Year 2012

Description of this table
NOTE: Click on the underlined Probable Source Group to see a list of specific state Probable Sources making up the Probable Source Group.
Size of Assessed Waters with Probable Sources of Impairments
Agriculture 4,220.3 6,563.6 4.4 41.0
Construction 471.7
Hydromodification 11.8 700.0 .3 106.8
Industrial 2,794.4 2,381.6 .7 85.2
Land Application/Waste Sites/Tanks 2,192.2 1,642.6 .7 2.9
Municipal Discharges/Sewage 4,945.0 7,664.6 5.9 238.9
Recreational Boating And Marinas 18.8 216.0 64.6
Resource Extraction 451.9
Unknown 172.4 19.5
Urban-Related Runoff/Stormwater 3,070.0 2,816.6 4.7 237.1

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Puerto Rico TMDL Alternatives by Cause of Impairment 2012


No TMDL Alternatives reported.

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Puerto Rico Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards

Description of this table
NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those previously 303(d)-listed waters now attaining all applicable water quality standards.
2004 color.gif 1 1
2010 color.gif 1 1

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Puerto Rico Causes of Impairment for 303(d) Listed Waters

Description of this table
NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Pathogens color.gif 158
Metals (other than Mercury) color.gif 142
Organic Enrichment/Oxygen Depletion color.gif 102
Turbidity color.gif 79
Toxic Inorganics color.gif 67
Other Cause color.gif 54
pH/Acidity/Caustic Conditions color.gif 28
Temperature color.gif 17
Pesticides color.gif 16
Nutrients color.gif 10
Mercury color.gif 7
Ammonia color.gif 6
Oil and Grease color.gif 3

Total: 689 Causes of Impairment

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Puerto Rico Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Number of Causes of
Impairment Addressed
Fecal Coliform color.gif 313 313