Post on 14-May-2020
transcript
F.5 Category 5 Waters
Maryland's 2010 Final Integrated Report - Category 5 Waters
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02120201
Lower Susquehanna River
CE, HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-CB1TF-02120201
Tidal Lower Susquehanna River
CE, HA
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing only applies to the tidal Lower Susquehanna portion (02120201) of CB1TF.
2002 Direct Measurement
MD-02120204
Conowingo Dam Susquehanna River
CE, HA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02120204-Conowingo_Pool
Conowingo Dam Susquehanna River
CE, HA
Impoundments
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
mainstem of Susquehanna River
2008 Direct Measurement
MD-02120204
Conowingo Dam Susquehanna River
CE, HA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02130102-T-ASSAWOMAN_BAY
Assawoman Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Agriculture
High Yes1996 Dissolved Oxygen
MD-02130102-T-ASSAWOMAN_BAY
Assawoman Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Agriculture
High Yes1996 Dissolved Oxygen
MD-02130102-T-GREYS_CREEK
Assawoman Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Source Unknown
High Yes1996 Dissolved Oxygen
Page 1 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02130102-T-GREYS_CREEK
Assawoman Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
High Yes1996 Dissolved Oxygen
MD-02130103-T-MANKLIN_CREEK
Isle of Wight Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Source Unknown
High Yes1996 Dissolved Oxygen
MD-02130103-T-MANKLIN_CREEK
Isle of Wight Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
High Yes1996 Dissolved Oxygen
MD-02130103-T-ISLE_OF_WIGHT_BAY
Isle of Wight Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Agriculture
High Yes1996 Dissolved Oxygen
MD-02130103-T-ISLE_OF_WIGHT_BAY
Isle of Wight Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Agriculture
High Yes1996 Dissolved Oxygen
MD-02130104-T
Sinepuxent Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
High Yes
Incorporated into the Bay model.
1996 Dissolved Oxygen
MD-02130104-T
Sinepuxent Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Source Unknown
High Yes
Incorporated into the Bay model.
1996 Dissolved Oxygen
MD-02130105-T-MARSHALL_CREEK
Newport Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
High Yes1996 Dissolved Oxygen
MD-02130105-T-MARSHALL_CREEK
Newport Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Source Unknown
High Yes1996 Dissolved Oxygen
MD-02130106-T
Chincoteague Bay
WO
Coastal Bay
Aquatic Life and Wildlife Nitrogen (Total)
Source Unknown
High Yes
Incorporated into the Bay model.
1996 Dissolved Oxygen
Page 2 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02130106-T
Chincoteague Bay
WO
Coastal Bay
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
High Yes
Incorporated into the Bay model.
1996 Dissolved Oxygen
MD-POCOH
POCOH - Middle Pocomoke River Oligohaline
WO, SO
Chesapeake Bay segment
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low No
This listing supersedes the previous sediment listing for watershed 02130202.
1996 SAV and Water Clarity
MD-POCOH
POCOH - Middle Pocomoke River Oligohaline
WO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for watershed 02130202.
1996 Dissolved Oxygen
MD-POCOH
POCOH - Middle Pocomoke River Oligohaline
WO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for watershed 02130202.
1996 Dissolved Oxygen
MD-POCMH
POCMH - Lower Pocomoke River Mesohaline
SO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal.
2008 SAV and Water Clarity
MD-02130202
Lower Pocomoke River
WO, SO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-POCOH-02130202
Lower Pocomoke River
WO, SO
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing only applies to the Lower Pocomoke River (02130202) watershed
2008 Direct Measurement
MD-POCTF
POCTF - Upper Pocomoke River Tidal Fresh
WO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listings for watersheds 02130202, 02130204, and 02130205.
1996 Dissolved Oxygen
Page 3 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-POCTF
POCTF - Upper Pocomoke River Tidal Fresh
WO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listings for watersheds 02130202, 02130204, and 02130205.
1996 Dissolved Oxygen
MD-POCTF
POCTF - Upper Pocomoke River Tidal Fresh
WO, SO
Chesapeake Bay segment
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low No
This listing captures the tidal Sediment/TSS listings from watersheds 02130202, 02130204, and 02130205.
1996 SAV and Water Clarity
MD-02130203
Upper Pocomoke River
WI, WO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02130203
Upper Pocomoke River
WI, WO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02130203
Upper Pocomoke River
WI, WO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-TANMH
TANMH - Tangier Sound Mesohaline
DO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for watersheds 02130206 and 02139998.
1996 Dissolved Oxygen
MD-TANMH
TANMH - Tangier Sound Mesohaline
DO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for watersheds 02130206 and 02139998.
1996 Dissolved Oxygen
MD-TANMH
TANMH - Tangier Sound Mesohaline
DO, SO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02130206.
1996 SAV and Water Clarity
Page 4 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-BIGMH
BIGMH - Big Annemessex River Mesohaline
SO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
Measured acres of SAV does not meet the restoration goal. No water clarity data are available.
2008 SAV and Water Clarity
MD-MANMH
MANMH - Manokin River Mesohaline
SO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV restoration goal is not being met. This listing captures the previous Sediment/TSS listing from watershed 02130208.
1996 SAV and Water Clarity
MD-02130301
Lower Wicomico River
WI, SO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-WICMH-02130301
Lower Wicomico River
WI, SO
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing only applies to the Lower Wicomico River (02130301) watershed
2008 Direct Measurement
MD-WICMH-WICOMICO_RIVER_2
WICMH - Wicomico River Mesohaline
WI, SO
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No
This area is an extension of AU MD-WICMH-WICOMICO_RIVER. The TMDL for AU MD-WICMH-WICOMICO_RIVER did not cover this additional area.
2010 Direct Measurement
MD-WICMH
WICMH - Wicomico River Mesohaline
WI, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Agriculture
Low No
A TMDL for phosphorus has been approved for the Lower Wicomico River (02130301) and Wicomico Creek (02130303) portions of WICMH. The Monie Bay (02130302) portion of WICMH now (2008) also needs a TMDL for nutrients.
1996 Dissolved Oxygen
Page 5 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-WICMH
WICMH - Wicomico River Mesohaline
WI, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Urban Runoff/Storm Sewers
Low No
A TMDL for nitrogen has been approved for the Lower Wicomico River (02130301) and Wicomico Creek (02130303) portions of WICMH. The Monie Bay (02130302) portion of WICMH now (2008) also needs a TMDL for nutrients.
1996 Dissolved Oxygen
MD-WICMH-02130302
WICMH - Wicomico River Mesohaline
SO
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low Yes
In 2010 the two shellfish harvesting area listings for the Monie Bay portion of WICMH were aggregated to better reflect the geographic scope of impairment.
2006 Direct Measurement
MD-02130305
Nanticoke River
CA, DO, WI
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-NANMH
NANMH - Lower Nanticoke River Mesohaline
DO, WI
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal.
2008 SAV and Water Clarity
MD-NANTF
NANTF - Upper Nanticoke River Tidal Fresh
DO, WI
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
Segment does not meet the 30-day dissolved oxygen criteria. Placed in Category 5 of the Integrated Report.
2006 Dissolved Oxygen
MD-NANTF
NANTF - Upper Nanticoke River Tidal Fresh
DO, WI
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
Segment does not meet the 30-day dissolved oxygen criteria. Placed in Category 5 of the Integrated Report.
2006 Dissolved Oxygen
MD-NANMH-02130305
NANMH - Lower Nanticoke River Mesohaline
DO, WI
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
Page 6 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-NANOH
NANOH - Upper Nanticoke River Oligohaline
DO, WI
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
The Marshyhope (02130306) portion was previously listed and had a TMDL approved. Nanticoke River (02130305) portion listed for the first time (2008) based on recent data.
2008 Dissolved Oxygen
MD-NANOH
NANOH - Upper Nanticoke River Oligohaline
DO, WI
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing for the tidal portion of watershed 02130306.
1996 SAV and Water Clarity
MD-NANOH
NANOH - Upper Nanticoke River Oligohaline
DO, WI
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
The Marshyhope (02130306) portion was previously listed and had a TMDL approved. Nanticoke River (02130305) portion listed for the first time (2008) based on recent data.
2008 Dissolved Oxygen
MD-02130306
Marshyhope Creek
CA, DO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02130308
Transquaking River
DO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-HNGMH
HNGMH - Honga River Mesohaline
DO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing for watershed 02130401.
1996 SAV and Water Clarity
MD-HNGMH
HNGMH - Honga River Mesohaline
DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing for watershed 02130401.
1996 Dissolved Oxygen
Page 7 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-HNGMH
HNGMH - Honga River Mesohaline
DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing for watershed 02130401.
1996 Dissolved Oxygen
MD-LCHMH
LCHMH - Little Choptank River Mesohaline
DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing for watershed 02130402.
1996 Dissolved Oxygen
MD-LCHMH
LCHMH - Little Choptank River Mesohaline
DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing for watershed 02130402.
1996 Dissolved Oxygen
MD-LCHMH
LCHMH - Little Choptank River Mesohaline
DO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal.
2008 SAV and Water Clarity
MD-02130403
Lower Choptank River
TA, DO, CA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-CHOMH1
CHOMH1 - Choptank River Mesohaline mouth 1
TA, DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing from watershed 02130403.
1996 Dissolved Oxygen
MD-CHOMH2
CHOMH2 - Choptank River Mesohaline 2
TA, DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing from watershed 02130403.
1996 Dissolved Oxygen
MD-CHOMH1
CHOMH1 - Choptank River Mesohaline mouth 1
TA, DO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal.
1996 SAV and Water Clarity
Page 8 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CHOMH2
CHOMH2 - Choptank River Mesohaline 2
TA, DO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing from watershed 02130403.
1996 SAV and Water Clarity
MD-CHOMH2-LOWER_CHOPTANK_RIVER_MAINSTEM2
CHOMH2 - Choptank River Mesohaline mouth 2
TA, DO
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No
This is a new listing that adds an additional chunk of impaired water onto the original shellfish listing for the mainstem Choptank. This area was not covered under the previous TMDL.
2010 Direct Measurement
MD-CHOMH2
CHOMH2 - Choptank River Mesohaline mouth 2
TA, DO
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2010 Benthic IBI
MD-CHOMH1
CHOMH1 - Choptank River Mesohaline mouth 1
TA, DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing from watershed 02130403.
1996 Dissolved Oxygen
MD-CHOMH2-02130403
CHOMH2 - Choptank River Mesohaline mouth 2
TA, DO
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-CHOMH1
CHOMH1 - Choptank River Mesohaline mouth 1
TA, DO
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2010 Benthic IBI
MD-CHOMH2
CHOMH2 - Choptank River Mesohaline 2
TA, DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing from watershed 02130403.
1996 Dissolved Oxygen
Page 9 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CHOOH
CHOOH - Choptank River Oligohaline
TA, DO, CA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient listings from watersheds 02130403 and 02130404.
1996 Dissolved Oxygen
MD-CHOOH
CHOOH - Choptank River Oligohaline
TA, DO, CA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient listings from watersheds 02130403 and 02130404.
1996 Dissolved Oxygen
MD-CHOOH
CHOOH - Choptank River Oligohaline
TA, DO, CA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listings from watersheds 02130403 and 02130404.
2008 SAV and Water Clarity
MD-02130404
Upper Choptank River
TA, QA, CA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-CHOTF
CHOTF - Upper Choptank River Tidal Fresh
TA, QA, CA
Chesapeake Bay segment
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low No
This listing for TSS combines the listings from the tidal portions of the Upper Choptank and Tuckahoe Creek watersheds.
1996 SAV and Water Clarity
MD-CHOTF
CHOTF - Upper Choptank River Tidal Fresh
TA, QA, CA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing resulted from the nutrient listings for the tidal portions of Tuckahoe and Upper Choptank watersheds.
1996 Dissolved Oxygen
MD-CHOTF
CHOTF - Upper Choptank River Tidal Fresh
TA, QA, CA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing resulted from the nutrient listings for the tidal portions of Tuckahoe and Upper Choptank watersheds.
1996 Dissolved Oxygen
Page 10 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.
1996 Dissolved Oxygen
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
The SAV/water clarity restoration goal is not being met. This listing captures the TSS/Sediment impairment from watersheds 02130501, 02130502, 02130503, and 02130504.
2008 SAV and Water Clarity
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.
1996 Dissolved Oxygen
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.
1996 Dissolved Oxygen
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.
1996 Dissolved Oxygen
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.
1996 Dissolved Oxygen
Page 11 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-EASMH
EASMH - Eastern Bay Mesohaline
QA, TA
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.
1996 Dissolved Oxygen
MD-EASMH-Hunting_Creek
Miles River
TA
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No
WQA was completed and approved. New data show that shellfish bacteria water quality standards are not being met.
2010 Direct Measurement
MD-EASMH-Miles_River2
Miles River
TA
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No
An area of 0.41 sq. miles south of the Todds Corner Rd. bridge was added to the existing restricted shellfish harvesting area.
2006 Direct Measurement
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Source Unknown
Low No
This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).
1996 Dissolved Oxygen
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).
1996 Dissolved Oxygen
Page 12 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).
1996 Dissolved Oxygen
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
The SAV/water clarity restoration goal is not being met. This listing captures the sediment listings from watersheds 02130505, 02130506, and 02130507.
2008 SAV and Water Clarity
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).
1996 Dissolved Oxygen
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).
1996 Dissolved Oxygen
Page 13 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Source Unknown
Low No
This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).
1996 Dissolved Oxygen
MD-CHSMH
CHSMH - Lower Chester River Mesohaline
KE, QA
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Benthic IBI
MD-CHSOH
CHSOH - Middle Chester River Oligohaline
KE, QA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV is not meeting the restoration goal. This listing supersedes the sediment/TSS listings for the portions of the watersheds 02130509, 02130508, 02130505, and 02130510 that are within CHSOH.
2010 SAV and Water Clarity
MD-CHSMH-02130507
Corsica River
KE, QA
Tidal subsegment
Fishing PCB in Fish Tissue
Source Unknown
High No
This listing only applies to the Corsica River (02130507) portion of CHSMH.
2002 Direct Measurement
MD-02130509
Middle Chester River
KE, QA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02130510
Upper Chester River
KE, QA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02130510-Millington_Wildlife_Ponds
Upper Chester River
KE
Impoundments
Fishing Mercury in Fish Tissue
Atmospheric Deposition - Toxics
High Yes2004 Direct Measurement
Page 14 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CHSTF
CHSTF - Upper Chester River Tidal Fresh
KE, QA
Chesapeake Bay segment
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low No
This listing captures the previous Sediment/TSS listing from watershed 02130510.
1996 SAV and Water Clarity
MD-CHSTF-Duck_Neck_Beach
Upper Chester River
QA
Public Beach
Water Contact Sports Enterococcus
Source Unknown
Low No
Previously erroneously listed as a shellfish area. Proper listing is for Duck Neck Beach only and the water contact use. May be delisted with reanalysis of data for compliance with the 35 cfu/100ml standard.
1996 Direct Measurement
MD-ELKOH
Upper and Lower Elk River
CE
Tidal subsegment
Fishing PCB in Fish Tissue
Source Unknown
High No
This listing now incorporates both the Lower and Upper portions of the Elk (watersheds 02130601 and 02130602). This listing was aggregated with the listing for the Lower Elk since they were hydrologically connected.
2002 Direct Measurement
MD-ELKOH
ELKOH - Elk River Oligohaline
CE
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the nutrient listings for watersheds 02130601 and 02130603.
1996 Dissolved Oxygen
MD-ELKOH
ELKOH - Elk River Oligohaline
CE
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2010 Benthic IBI
MD-ELKOH
ELKOH - Elk River Oligohaline
CE
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the nutrient listings for watersheds 02130601 and 02130603.
1996 Dissolved Oxygen
MD-BOHOH
BOHOH - Bohemia River Oligohaline
CE
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2002 Direct Measurement
Page 15 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-C&DOH
C&DOH - C&D Canal Oligohaline
CE
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
Ches. Bay tributary already listed for Nutrients in 1996. Dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.
1996 Dissolved Oxygen
MD-C&DOH
C&DOH - C&D Canal Oligohaline
CE
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2002 Direct Measurement
MD-C&DOH
C&DOH - C&D Canal Oligohaline
CE
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
Ches. Bay tributary already listed for Nutrients in 1996. Low dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.
1996 Dissolved Oxygen
MD-NORTF
NORTF - North East River Tidal Fresh
CE
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing only applies to watershed 02130608.
2002 Direct Measurement
MD-SASOH
SASOH - Sassafras River Oligohaline
CE, KE
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2002 Direct Measurement
MD-SASOH
SASOH - Sassafras River Oligohaline
CE, KE
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
The SAV/water clarity goal has not been met for this segment. This listing supersedes the previous Sediment/TSS listing for watershed 02130610.
2010 SAV and Water Clarity
MD-02130701
Bush River
HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
Page 16 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-BSHOH-02130701
BSHOH - Bush River Oligohaline
HA
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2002 Direct Measurement
MD-BSHOH
BSHOH - Bush River Oligohaline
HA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
Ches. Bay tributary already listed for Nutrients in 1996. Low dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.
1996 Dissolved Oxygen
MD-BSHOH
BSHOH - Bush River Oligohaline
HA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
Ches. Bay tributary already listed for Nutrients in 1996. Dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.
1996 Dissolved Oxygen
MD-021307021130-Edgewater_Village_Lake
Lower Winters Run
HA
Impoundments
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low No
Phosphorus loading analysis was conducted but a TMDL was never written. A load reduction of 90% was determined not feasible given the use I.e., storm water management therefore, a UAA is being considered and is pending.
1998 Dissolved Oxygen
MD-02130702
Lower Winters Run
HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-021307031132-Atkisson_Reservoir
Atkisson Reservoir
HA
Impoundments
Water Contact Sports Sedimentation/siltation
Source Unknown
Low Yes1996 Unknown
MD-021307031132-Atkisson_Reservoir
Atkisson Reservoir
HA
Impoundments
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
Page 17 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02130703
Atkisson Reservoir
HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02130704
Bynum Run
HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02130704
Bynum Run
HA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02130705
Aberdeen Proving Ground
HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-CB1TF-02130705
Aberdeen Proving Ground
HA
Tidal subsegment
Aquatic Life and Wildlife Toxics
Source Unknown
High Yes
This listing only applies to the tidal Aberdeen Proving Grounds (02130705) portion of CB1TF.
1996 Direct Measurement
MD-02130706
Swan Creek
HA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-GUNOH-02130801
Gunpowder River
HA, BA
Tidal subsegment
Fishing PCB in Fish Tissue
Source Unknown
High No
This listing only applies to the Gunpowder River portion of GUNOH.
2006 Direct Measurement
MD-GUNOH
GUNOH - Gunpowder River Oligohaline
HA, BA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
Ches. Bay tributary already listed for Nutrients in 1996. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met. This listing does not apply to the Bird River portion of GUNOH (WQA approved for nutrients).
1996 Dissolved Oxygen
Page 18 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-GUNOH
GUNOH - Gunpowder River Oligohaline
HA, BA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
Ches. Bay tributary already listed for Nutrients in 1996. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met. This listing does not apply to the Bird River portion of GUNOH (WQA approved for nutrients).
1996 Dissolved Oxygen
MD-GUNOH
GUNOH - Gunpowder River Oligohaline
HA, BA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the Sediment/TSS listings for watersheds 02130801 and 02130803.
2010 SAV and Water Clarity
MD-MIDOH
MIDOH - Middle River Oligohaline
BA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the previous nutrient listings for watersheds 02130807 and 02130801.
1996 Dissolved Oxygen
MD-MIDOH
MIDOH - Middle River Oligohaline
BA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the previous nutrient listings for watersheds 02130807 and 02130801.
1996 Dissolved Oxygen
MD-MIDOH
MIDOH - Middle River Oligohaline
BA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing for watersheds 02130807 and 02130801.
1996 SAV and Water Clarity
MD-02130802
Lower Gunpowder Falls
BA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
Page 19 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02130802
Lower Gunpowder Falls
BA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
High Yes
Monitoring completed for this area. Waiting on Chesapeake Bay Phase 5 model and VIMS work on model development.
1996 Dissolved Oxygen
MD-GUNOH-02130803
Bird River
BA
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing only applies Bird River (02130803).
2008 Direct Measurement
MD-02130805
Loch Raven Reservoir
BA, CR
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-MIDOH-02130807
Middle River
BA
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing only applies to the Middle River (02130807) portion of MIDOH.
2006 Direct Measurement
MD-02130901
Back River
BA, BC
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-BACOH
BACOH - Back River Oligohaline
BA
Chesapeake Bay segment
Aquatic Life and Wildlife Polychlorinated biphenyls
Contaminated Sediments
High Yes1998 Direct Measurement
MD-BACOH
BACOH - Back River Oligohaline
BA
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-BACOH
BACOH - Back River Oligohaline
BA
Chesapeake Bay segment
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low No1996 SAV and Water Clarity
MD-PATMH-Bodkin_Creek
PATMH - Patapsco River Mesohaline
AA
Tidal subsegment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing only applies to the Bodkin Creek (02130902) portion of PATMH. A TMDL for TP and TN was already written for the rest of PATMH.
1996 Dissolved Oxygen
Page 20 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PATMH-Bodkin_Creek
PATMH - Patapsco River Mesohaline
AA
Tidal subsegment
Aquatic Life and Wildlife Copper
Source Unknown
Low Yes
This listing only applies to the Bodkin Creek (02130902) portion of PATMH. NOTE: Bodkin Creek was inadvertently delisted for copper in 2006. The listing category was being changed back to 5.
1996 Direct Measurement
MD-PATMH-Bodkin_Creek
PATMH - Patapsco River Mesohaline
AA
Tidal subsegment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing only applies to the Bodkin Creek (02130902) portion of PATMH. A TMDL for TP and TN was already written for the rest of PATMH.
1996 Dissolved Oxygen
MD-PATMH
PATMH - Patapsco River Mesohaline
BA, AA
SAV Grow Zone
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listings for watersheds 02130903 and 02130902.
1996 SAV and Water Clarity
MD-PATMH
PATMH - Patapsco River Mesohaline
AA, BA, BC
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Benthic IBI
MD-02130903
Baltimore Harbor
AA, BA, BC
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-PATMH-NORTHWEST_BRANCH
PATMH - Patapsco River Mesohaline
BC
Tidal subsegment
Aquatic Life and Wildlife Chromium - sediments
Industrial Point Source Discharge
High No
WQA approved January 18, 2005 for the Inner Harbor/Northwest Branch and Bear Creek. Sediment ingestion study confirmed results of WQA. However, the Dept. anticipates receiving additional Cr data and therefore will postpone any delisting action.
1998 Direct Measurement
Page 21 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PATMH-NORTHWEST_BRANCH
PATMH - Patapsco River Mesohaline
BC
Tidal subsegment
Aquatic Life and Wildlife Lead -sediments
Source Unknown
High No
WQA approved January 18, 2005 for the Inner Harbor/Northwest Branch. However, results were deemed inconclusive. Additional study is warranted.
1998 Direct Measurement
MD-PATMH-CURTIS_BAY_CREEK
PATMH - Patapsco River Mesohaline
AA, BC
Tidal subsegment
Aquatic Life and Wildlife Zinc - sediments
Source Unknown
High Yes1998 Direct Measurement
MD-PATMH-BEAR_CREEK
PATMH - Patapsco River Mesohaline
BA
Tidal subsegment
Aquatic Life and Wildlife Chromium - sediments
Industrial Point Source Discharge
High No
WQA approved January 18, 2005 for the Inner Harbor/Northwest Branch and Bear Creek. Sediment ingestion study confirmed results of WQA. However, the Dept. anticipates receiving additional Cr data and therefore will postpone any delisting action.
1998 Direct Measurement
MD-PATMH
PATMH - Patapsco River Mesohaline
AA, BA, BC
Tidal subsegment
Aquatic Life and Wildlife Debris/Floatables/Trash
Source Unknown
Low No
Listing only applies to the Middle Branch from the mouth (Ferry Bar Park to Harbor Hospital Center) extending westward and the Northwest Branch from the Hull Street Pier to Canton Waterfront Park.
2008 Direct Measurement
MD-PATMH-NORTHWEST_BRANCH
PATMH - Patapsco River Mesohaline
BC
Tidal subsegment
Aquatic Life and Wildlife Zinc - sediments
Source Unknown
High No
WQA completed January 18, 2005 for Inner Harbor/Northwest Branch. However, results were deemed inconclusive. Additional study is warranted.
1998 Direct Measurement
MD-PATMH-Middle_Harbor
PATMH - Patapsco River Mesohaline
BC
Tidal subsegment
Aquatic Life and Wildlife Zinc - sediments
Source Unknown
High Yes
This listing only applies to the Middle Harbor portion of PATMH.
1998 Direct Measurement
Page 22 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PATMH-02130903
Baltimore Harbor Watershed
AA, BA, BC
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High Yes
This PCB listing was due to sediment data, not fish tissue. This listing only applies to the Baltimore Harbor (02130903) portion of PATMH.
1998 Direct Measurement
MD-PATMH-CURTIS_BAY_CREEK
PATMH - Patapsco River Mesohaline
AA, BC
Tidal subsegment
Aquatic Life and Wildlife PCBs - sediments and fish tissue
Source Unknown
High Yes
This PCB listing was due to sediment data, not fish tissue.
1998 Direct Measurement
MD-PATMH-BEAR_CREEK
PATMH - Patapsco River Mesohaline
BA
Tidal subsegment
Aquatic Life and Wildlife PCBs - sediments and fish tissue
Source Unknown
High Yes
This PCB listing was due to sediment data, not fish tissue.
1998 Direct Measurement
MD-PATMH-MiddleBranch_NorthwestHarbor
PATMH - Patapsco River Mesohaline
BC
Tidal subsegment
Water Contact Sports Enterococcus
Source Unknown
Low No
This listing currently applies to all tidal waters upstream of the Harbor Tunnel. However, more analysis is warranted to further refine the spatial extent of bacterial impairment.
2010 Direct Measurement
MD-PATMH-BEAR_CREEK
PATMH - Patapsco River Mesohaline
BA
Tidal subsegment
Aquatic Life and Wildlife Zinc - sediments
Source Unknown
High No
WQA completed January 18, 2005 for the Inner Harbor/Northwest Branch and Bear Creek. However, results were deemed inconclusive. Additional study is warranted.
1998 Direct Measurement
MD-PATMH-FURNACE_CREEK
PATMH - Patapsco River Mesohaline
AA
Subwatershed
Water Contact Sports Enterococcus
Source Unknown
Medium Yes
Data collected in 2007 by AA county indicate Furnace Creek is impaired for bacteria, see "ListingReview_old98_listings.doc" - 303(d) data for 2008 list. NOTE: Area for Furnace Creek does not include Back Creek which = 0.024 sq. miles
1998 Direct Measurement
Page 23 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PATMH-MARLEY_CREEK
PATMH - Patapsco River Mesohaline
AA
Subwatershed
Water Contact Sports Enterococcus
Source Unknown
Medium Yes
Data collected in 2007 by AA county indicate Marley Creek is impaired for bacteria, see "ListingReview_old98_listings.doc" - 303(d) data for 2008 list. NOTE: Tanyard Cove area was not included in Marley Creek and = 0.067 sq miles.
1998 Direct Measurement
MD-PATMH
PATMH - Patapsco River Mesohaline
AA, BA, BC
Navigation Channel
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Source Unknown
Low Yes
Navigational channel not covered by the nutrient TMDL completed for Baltimore Harbor (02130903).
1996 Dissolved Oxygen
MD-PATMH
PATMH - Patapsco River Mesohaline
AA, BA, BC
Navigation Channel
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Source Unknown
Low Yes
Navigational channel not covered by the nutrient TMDL completed for Baltimore Harbor (02130903).
1996 Dissolved Oxygen
MD-02130904
Jones Falls
BA, BC
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
1996
93%
Fish and Benthic IBIs
MD-02130904-Lake_Roland
Jones Falls
BA
Impoundments
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2002 Direct Measurement
MD-02130904
Jones Falls
BA, BC
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Sulfates
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
56%
Fish and Benthic IBIs
MD-02130904
Jones Falls
BA, BC
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
95%
Fish and Benthic IBIs
Page 24 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02130905
Gwynns Falls
BA, BC
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
76%
Fish and Benthic IBIs
MD-02130906
Patapsco River Lower North Branch
AA, BA, BC, HO, CR
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Sulfates
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
79%
Fish and Benthic IBIs
MD-02130906
Patapsco River Lower North Branch
AA, BA, BC, HO, CR
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
1996
70%
Fish and Benthic IBIs
MD-02130906
Patapsco River Lower North Branch
AA, BA, BC, HO, CR
Non-tidal 8-digit watershed
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-02130906
Patapsco River Lower North Branch
AA, BA, BC, HO, CR
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
78%
Fish and Benthic IBIs
MD-02130907
Liberty Reservoir
BA, CR
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02130907-Liberty_Reservoir
Liberty Reservoir
BA, CR
Impoundments
Fishing Mercury in Fish Tissue
Atmospheric Deposition - Toxics
High No2002 Direct Measurement
Page 25 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02130907-Liberty_Reservoir
Liberty Reservoir
BA, CR
Impoundments
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02130907-Liberty_Reservoir
Liberty Reservoir
BA, CR
Impoundments
Aquatic Life and Wildlife Sedimentation/siltation
Source Unknown
Low Yes1996 Unknown
MD-02130908
South Branch Patapsco River
CR, HO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02131001
Magothy River
AA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-MAGMH
MAGMH - Magothy River Mesohaline
AA
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing captures the previous PCBs listing for watershed 02131001.
2006 Direct Measurement
MD-MAGMH
MAGMH - Magothy River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing for watershed 02131001.
1996 Dissolved Oxygen
MD-MAGMH
MAGMH - Magothy River Mesohaline
AA
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No
This listing captures the previous tidal biological listing for watershed 02131001.
2004 Benthic IBI
MD-MAGMH
MAGMH - Magothy River Mesohaline
AA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
The SAV/water clarity restoration goal is not being met. This listing captures the previous Sediment/TSS listing for watershed 02131001.
1996 SAV and Water Clarity
MD-MAGMH
MAGMH - Magothy River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing captures the previous nutrient listing for watershed 02131001.
1996 Dissolved Oxygen
Page 26 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02131002
Severn River
AA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-SEVMH
SEVMH - Severn River Mesohaline
AA
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2008 Benthic IBI
MD-SEVMH
SEVMH - Severn River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02131002.
1996 Dissolved Oxygen
MD-SEVMH
SEVMH - Severn River Mesohaline
AA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
The SAV/water clarity goal is not being met for this segment. This listing supersedes the previous Sediment/TSS listing for watershed 02131002.
2010 SAV and Water Clarity
MD-SEVMH
SEVMH - Severn River Mesohaline
AA
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
Newer data suggest that PCB levels are down. However, more data is needed to confirm. This listing only includes the Severn mainstem, not Whitehall or Mill Creek.
2006 Direct Measurement
MD-SEVMH
SEVMH - Severn River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02131002.
1996 Dissolved Oxygen
MD-02131003
South River
AA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
Page 27 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-SOUMH
SOUMH - South River Mesohaline
AA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
The SAV/water clarity restoration goal is not being met. This listing supersedes the previous Sediment/TSS listing for watershed 02131003.
1996 SAV and Water Clarity
MD-SOUMH
SOUMH - South River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
Ches. Bay tributary already listed for Nutrients in 1996.
1996 Dissolved Oxygen
MD-SOUMH
SOUMH - South River Mesohaline
AA
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2002 Direct Measurement
MD-SOUMH
SOUMH - South River Mesohaline
AA
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2008 Benthic IBI
MD-SOUMH
SOUMH - South River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
Ches. Bay tributary already listed for Nutrients in 1996.
1996 Dissolved Oxygen
MD-02131004
West River
AA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-RHDMH
RHDMH - Rhode River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing was split from the previous nutrient listing for the whole of watershed 02131004.
1996 Dissolved Oxygen
MD-WST-RHDMH-02131004
West River
AA
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing applies to all of the tidal portion of watershed 02131004.
2006 Direct Measurement
Page 28 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-WSTMH
WSTMH - West River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing was split from the original nutrient listing for watershed 02131004.
1996 Dissolved Oxygen
MD-RHDMH
RHDMH - Rhode River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing was split from the previous nutrient listing for the whole of watershed 02131004.
1996 Dissolved Oxygen
MD-WSTMH
WSTMH - West River Mesohaline
AA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
The SAV/water clarity restoration goal is not being met. This listing was split and now supersedes the previous Sediment/TSS listing for watershed 02131004.
1996 SAV and Water Clarity
MD-WSTMH
WSTMH - West River Mesohaline
AA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing was split from the original nutrient listing for watershed 02131004.
1996 Dissolved Oxygen
MD-02131005
Other West Chesapeake Bay
AA, CV
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02131101
Patuxent River lower
CH, CV, PG, SM
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-PAXMH-OH-02131101
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
The PCB listing for PAXOH was aggregated with this listing for TMDL purposes.
2008 Direct Measurement
Page 29 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PAXOH
PAXOH - Middle Patuxent River Oligohaline
PG, CV
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02131101.
1996 Dissolved Oxygen
MD-PAXMH
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
The SAV/water clarity restoration goal is not being met. This listing captures the previous Sediment/TSS listing for watershed 02131101.
1996 SAV and Water Clarity
MD-PAXMH
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the previous nutrient listing for watershed 02131101.
1996 Dissolved Oxygen
MD-PAXMH
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the previous nutrient listing for watershed 02131101.
1996 Dissolved Oxygen
MD-PAXMH
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the previous nutrient listing for watershed 02131101.
1996 Dissolved Oxygen
MD-PAXMH
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Benthic IBI
MD-PAXOH
PAXOH - Middle Patuxent River Oligohaline
PG, CV
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2010 Benthic IBI
Page 30 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PAXOH
PAXOH - Middle Patuxent River Oligohaline
PG, CV
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02131101.
2010 SAV and Water Clarity
MD-PAXMH-BATTLE_CREEK2
PAXMH - Lower Patuxent River Mesohaline
CV
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No
This portion of Battle Creek was relisted after a WQA was approved for it in 2005 based on new data from MDE's Shellfish Monitoring Program.
2010 Direct Measurement
MD-PAXMH-WELLS_COVE
PAXMH - Lower Patuxent River Mesohaline
CV
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No2010 Direct Measurement
MD-PAXOH
PAXOH - Middle Patuxent River Oligohaline
PG, CV
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for watershed 02131101.
1996 Dissolved Oxygen
MD-CB5MH-ST_JEROMES_CREEK
CB5MH - Chesapeake Bay 5 Mesohaline
SM
Tidal Shellfish Area
Shellfishing Fecal Coliform
Source Unknown
Low No2010 Direct Measurement
MD-PAXMH
PAXMH - Lower Patuxent River Mesohaline
CH, CV, PG, SM
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the previous nutrient listing for watershed 02131101.
1996 Dissolved Oxygen
MD-02131102
Patuxent River middle
AA, CV, PG
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
Page 31 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PAXTF
PAXTF - Upper Patuxent River Tidal Fresh
AA, CV, PG
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02131102.
2010 SAV and Water Clarity
MD-PAXTF
PAXTF - Upper Patuxent River Tidal Fresh
AA, CV, PG
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02131102.
1996 Dissolved Oxygen
MD-PAXTF
PAXTF - Upper Patuxent River Tidal Fresh
AA, CV, PG
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02131102.
1996 Dissolved Oxygen
MD-02131103
Western Branch
PG
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-WBRTF
WBRTF - Western Branch Patuxent River Tidal Fresh
PG
Chesapeake Bay segment
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low No1996 SAV and Water Clarity
MD-021311040938-Cash_Lake
Patuxent River upper
PG
Impoundments
Fishing Mercury in Fish Tissue
Atmospheric Deposition - Toxics
High Yes2004 Direct Measurement
MD-02131104
Patuxent River upper
AA, HO, PG
River Mainstem
Water Contact Sports Fecal Coliform
Source Unknown
Medium Yes
From point at Old Queen Anne's bridge on Old Queen Anne's bridge road to the confluence of the Patuxent River with the Little Patuxent River.
2008 Direct Measurement
MD-02131104
Patuxent River Upper
AA, HO, PG
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
Page 32 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02131104
Patuxent River upper
AA, HO, PG
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02131105
Little Patuxent River
AA, HO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02131105
Little Patuxent River
AA, HO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Urban Runoff/Storm Sewers
Low Yes1996 Fish and Benthic IBIs
MD-02131106
Middle Patuxent River
HO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-021311070941-Rocky_Gorge_Reservoir
Rocky Gorge Dam
HO, MO, PG
Impoundments
Fishing Mercury in Fish Tissue
Source Unknown
Low No2010 Direct Measurement
MD-02131107
Rocky Gorge Dam
HO, MO, PG
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-CB1TF
CB1TF - Northern Chesapeake Bay Tidal Fresh
CE, HA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing does not apply to the Lower Susquehanna portion of CB1TF (WQA approved on 1/11/2006) nor the Swan Creek portion of CB1TF (TMDL approved on 3/27/2002).
1996 Dissolved Oxygen
MD-CB1TF
CB1TF - Northern Chesapeake Bay Tidal Fresh
CE, HA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing does not apply to the Lower Susquehanna portion of CB1TF (WQA approved on 1/11/2006) nor the Swan Creek portion of CB1TF (TMDL approved on 3/27/2002).
1996 Dissolved Oxygen
Page 33 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CB2OH
CB2OH - Northern Chesapeake Bay Oligohaline
BA, CE, HA, KE
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
SAV is not meeting the restoration goal.
2010 SAV and Water Clarity
MD-CB2OH
CB2OH - Northern Chesapeake Bay Oligohaline
BA, CE, HA, KE
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing does not apply to the Fairlee Creek, Still Pond, and Worton Creek portions of CB2OH. These tidal creeks have all had TMDLs completed and approved.
1996 Dissolved Oxygen
MD-CB2OH
CB2OH - Northern Chesapeake Bay Oligohaline
BA, CE, HA, KE
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing does not apply to the Fairlee Creek, Still Pond, and Worton Creek portions of CB2OH. These tidal creeks have all had TMDLs completed and approved.
1996 Dissolved Oxygen
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.
1996 Dissolved Oxygen
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.
1996 Dissolved Oxygen
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Source Unknown
High No
This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.
1996 Dissolved Oxygen
Page 34 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
SAV is not meeting the restoration goal.
2008 SAV and Water Clarity
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.
1996 Dissolved Oxygen
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Source Unknown
High No
This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.
1996 Dissolved Oxygen
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Benthic IBI
MD-CB3MH
CB3MH - Upper Chesapeake Bay Mesohaline
BA, AA, KE, QA
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.
1996 Dissolved Oxygen
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the previous nutrient listing from watershed 02139998.
1996 Dissolved Oxygen
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the previous nutrient listing from watershed 02139998.
1996 Dissolved Oxygen
Page 35 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the previous nutrient listing from watershed 02139998.
1996 Dissolved Oxygen
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Benthic IBI
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
SAV is not meeting the restoration goal.
2008 SAV and Water Clarity
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Source Unknown
High No
This listing captures the previous nutrient listing from watershed 02139998.
1996 Dissolved Oxygen
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Source Unknown
High No
This listing captures the previous nutrient listing from watershed 02139998.
1996 Dissolved Oxygen
MD-CB5MH
CB5MH - Lower Chesapeake Bay Mesohaline
CV, SM, DO, SO
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the previous nutrient listing from watershed 02139998.
1996 Dissolved Oxygen
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the nitrogen portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.
1996 Dissolved Oxygen
Page 36 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the phosphorus portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.
1996 Dissolved Oxygen
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Benthic IBI
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing captures the phosphorus portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.
1996 Dissolved Oxygen
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing captures the nitrogen portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.
1996 Dissolved Oxygen
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Source Unknown
High No
This listing captures the nitrogen portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.
1996 Dissolved Oxygen
Page 37 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listings for watersheds 02130511 and 02131005.
1996 SAV and Water Clarity
MD-CB4MH
CB4MH - Middle Chesapeake Bay Mesohaline
AA, CV, QA, TA, DO
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Source Unknown
High No
This listing captures the phosphorus portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.
1996 Dissolved Oxygen
MD-02140101
Potomac River Lower tidal
CH, SM
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listings for the tidal portions of watersheds 02140101, 02140103, 02140104, 02140105, 02140106, and 02140107.
2008 SAV and Water Clarity
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Agriculture
High No
This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.
1996 Dissolved Oxygen
Page 38 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Agriculture
High No
This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.
1996 Dissolved Oxygen
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Agriculture
High No
This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.
1996 Dissolved Oxygen
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Benthic IBI
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Phosphorus (Total)
Agriculture
High No
This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.
1996 Dissolved Oxygen
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Seasonal Deep-Channel Refuge Use
Nitrogen (Total)
Agriculture
High No
This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.
1996 Dissolved Oxygen
Page 39 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-POTMH
POTMH - Lower Potomac River Mesohaline
CH, SM
Chesapeake Bay segment
Seasonal Deep-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Agriculture
High No
This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.
1996 Dissolved Oxygen
MD-POTOH1
POTOH1 - Lower Potomac River Oligohaline
CH
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Agriculture
High No
This listing supersedes the nutrient listings for watersheds 02140101 and 02140102.
1996 Dissolved Oxygen
MD-POTOH1
POTOH1 - Lower Potomac River Oligohaline
CH
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Agriculture
High No
This listing supersedes the nutrient listings for watersheds 02140101 and 02140102.
1996 Dissolved Oxygen
MD-POTOH
POTOH - Lower Potomac River Oligohaline
CH
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
Low No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listings for watersheds 02140101, 02140102, 02140109, and 02140110.
1996 SAV and Water Clarity
MD-POTOH
POTOH - Lower Potomac River Oligohaline
CH
Chesapeake Bay segment
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No
This listing supersedes the previous estuarine biological listings for watersheds 02140101, 02140102, 02140109, and 02140110.
2010 Benthic IBI
MD-POTTF
POTTF - Upper Potomac River Tidal Fresh
CH, MO, PG
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listings for watersheds 02140102, 02140201, 02140204, and 02140202.
1996 Dissolved Oxygen
Page 40 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-POTTF
POTTF - Upper Potomac River Tidal Fresh
CH, MO, PG
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listings for watersheds 02140102, 02140201, 02140204, and 02140202.
1996 Dissolved Oxygen
MD-02140103
St. Mary's River
SM
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-POTMH-02140104
Breton Bay
SM
Tidal subsegment
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing is for Breton Bay (02140104).
2008 Direct Measurement
MD-02140109
Port Tobacco River
CH
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2008 Fish and Benthic IBIs
MD-02140109-HOGHOLE_RUN
Port Tobacco River
CH
Non-tidal Segment(s)
Water Contact Sports Enterococcus
Source Unknown
Medium No2006 Direct Measurement
MD-02140109-WILLS_BRANCH
Port Tobacco River
CH
Non-tidal Segment(s)
Water Contact Sports Enterococcus
Source Unknown
Medium No2006 Direct Measurement
MD-02140109-PORT_TOBACCO_CREEK
Port Tobacco River
CH
Non-tidal Segment(s)
Water Contact Sports Enterococcus
Source Unknown
Medium No
Two unnamed tributaries that join Port Tobacco Creek, one to the north and one to the south of RT. 6, are included in this listing.
2006 Direct Measurement
MD-02140109-JENNIE_RUN
Port Tobacco River
CH
Non-tidal Segment(s)
Water Contact Sports Enterococcus
Source Unknown
Medium No2006 Direct Measurement
MD-POTOH3
POTOH3 - Nanjemoy Creek
CH
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for 02140110.
1996 Dissolved Oxygen
Page 41 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-POTOH3
POTOH3 - Nanjemoy Creek
CH
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
Low No
This listing supersedes the previous nutrient listing for 02140110.
1996 Dissolved Oxygen
MD-02140111
Mattawoman Creek
PG, CH
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140201
Potomac River Upper tidal
PG, CH
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02140202
Potomac River Montgomery County
FR, MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140202
Potomac River Montgomery County
FR, MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02140202
Potomac River Montgomery County
FR, MO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02140202
Potomac River Montgomery County
FR, MO
Non-tidal 8-digit watershed
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-02140203
Piscataway Creek
PG
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-PISTF
PISTF - Piscataway Creek tidal Fresh
PG
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Nitrogen (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02140203.
1996 Dissolved Oxygen
Page 42 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-PISTF
PISTF - Piscataway Creek tidal Fresh
PG
Chesapeake Bay segment
Open-Water Fish and Shellfish Subcategory
Phosphorus (Total)
Source Unknown
High No
This listing supersedes the previous nutrient listing for watershed 02140203.
1996 Dissolved Oxygen
MD-PISTF
PISTF - Piscataway Creek tidal Fresh
PG
Chesapeake Bay segment
Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory
Total Suspended Solids (TSS)
Source Unknown
High No
SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02140203.
1996 SAV and Water Clarity
MD-02140205-Northwest_Branch
Anacostia River
MO, PG
Non-tidal 8-digit watershed
Fishing Heptachlor Epoxide
Source Unknown
Low Yes
The extent of this listing was refined in 2010 to reflect the actual impaired waters. This listing only applies to the Northwest Branch.
2002 Direct Measurement
MD-02140205
Anacostia River
MO, PG
Non-tidal 8-digit watershed
Water Contact Sports Debris/Floatables/Trash
Source Unknown
Medium Yes2006 Direct Measurement
MD-02140205
Anacostia River
MO, PG
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140205-Northeast_Northwest_Branches
Anacostia River
MO, PG
Non-tidal 8-digit watershed
Fishing Polychlorinated biphenyls
Source Unknown
Low Yes
The extent of this listing was refined in 2010 to reflect the actual non-tidal impaired waters. This listing only applies to the Northeast and Northwest Branches of the Anacostia watershed.
2002 Direct Measurement
MD-ANATF
ANATF - Anacostia River Tidal Fresh
PG
Chesapeake Bay segment
Water Contact Sports Debris/Floatables/Trash
Source Unknown
Low Yes2006 Direct Measurement
Page 43 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02140206
Rock Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140206
Rock Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02140206
Rock Creek
MO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140207
Cabin John Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Urban Runoff/Storm Sewers
Low Yes
The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
1996
58%
Fish and Benthic IBIs
MD-02140207
Cabin John Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
95%
Fish and Benthic IBIs
MD-02140207
Cabin John Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Sulfates
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
62%
Fish and Benthic IBIs
MD-02140208
Seneca Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes
The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. The TMDL for TSS addresses a portion of the biological impairment listing.
1996
16%
Fish and Benthic IBIs
MD-02140208
Seneca Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
40%
Fish and Benthic IBIs
Page 44 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02140208
Seneca Creek
MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Ammonia (Total)
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that ammonia is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
15%
Fish and Benthic IBIs
MD-02140301
Potomac River Frederick County
FR, WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02140302
Lower Monocacy River
CR, FR, MO
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140302
Lower Monocacy River
CR, FR, MO
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140303
Upper Monocacy River
CR, FR
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140303
Upper Monocacy River
CR, FR
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140304
Double Pipe Creek
CR, FR
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140304
Double Pipe Creek
CR, FR
Non-tidal 8-digit watershed
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-02140304
Double Pipe Creek
CR, FR
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140305
Catoctin Creek
FR
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
Page 45 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02140305
Catoctin Creek
FR
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140501
Potomac River Washington County
WA
Non-tidal 8-digit watershed
Fishing PCB in Fish Tissue
Contaminated Sediments
High No
This listing has been updated to represent the watershed-wide impairment.
2008 Direct Measurement
MD-02140501
Potomac River Washington County
WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02140501
Potomac River Washington County
WA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140501
Potomac River Washington County
WA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02140502
Antietam Creek
WA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02140502
Antietam Creek
WA
Non-tidal 8-digit watershed
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-02140502
Antietam Creek
WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140503
Marsh Run
WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-02140504
Conococheague Creek
WA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife pH, High
Source Unknown
Low No2002 Direct Measurement
Page 46 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02140504
Conococheague Creek
WA
Non-tidal 8-digit watershed
Fishing PCB in Fish Tissue
Contaminated Sediments
High No2008 Direct Measurement
MD-02140504
Conococheague Creek
WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-02140506
Licking Creek
WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140508
Potomac River Allegany County
WA, AL
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140509
Little Tonoloway Creek
WA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02140512
Town Creek
AL
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02141001
Lower North Branch Potomac River
AL
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-02141001
Lower North Branch Potomac River
AL
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Total Suspended Solids (TSS)
Source Unknown
Low Yes1996 Fish and Benthic IBIs
MD-02141001
Lower North Branch Potomac River
AL
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-02141002
Evitts Creek
AL
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
22%
Fish and Benthic IBIs
Page 47 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-02141002
Evitts Creek
AL
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Sulfates
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
25%
Fish and Benthic IBIs
MD-021410020107
Evitts Creek
AL
Subwatershed
Aquatic Life and Wildlife pH, Low
Acid Mine Drainage
Medium No2006 Direct Measurement
MD-02141003
Wills Creek
AL, GA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Sulfates
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
59%
Fish and Benthic IBIs
MD-02141003
Wills Creek
AL, GA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
31%
Fish and Benthic IBIs
MD-02141004
Georges Creek
AL, GA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-02141005
Upper North Branch Potomac River
AL, GA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2004 Fish and Benthic IBIs
MD-021410050039
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Manganese
Acid Mine Drainage
Low No2008 Direct Measurement
MD-021410050039
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Iron
Acid Mine Drainage
Low No2008 Direct Measurement
MD-021410050040
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Manganese
Acid Mine Drainage
Low No2008 Direct Measurement
Page 48 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-021410050048-Three_Forks_Run
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Aluminum
Acid Mine Drainage
Low No2008 Direct Measurement
MD-021410050048
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Manganese
Acid Mine Drainage
Low No2008 Direct Measurement
MD-021410050048
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Iron
Acid Mine Drainage
Low No2008 Direct Measurement
MD-021410050049
Upper North Branch Potomac River
GA
Subwatershed
Aquatic Life and Wildlife Manganese
Acid Mine Drainage
Low No2008 Direct Measurement
MD-05020201
Youghiogheny River
GA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
MD-05020201-Youghiogheny_River_Lake
Youghiogheny River
GA
Impoundments
Fishing Mercury in Fish Tissue
Atmospheric Deposition - Toxics
Low No2010 Direct Measurement
MD-05020202
Little Youghiogheny River
GA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2006 Fish and Benthic IBIs
MD-05020203
Deep Creek Lake
GA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Low Yes1996 Dissolved Oxygen
MD-05020203-Deep_Creek_Lake
Deep Creek Lake
GA
Impoundments
Aquatic Life and Wildlife Phosphorus (Total)
Source Unknown
Medium Yes1998 Dissolved Oxygen
MD-05020203
Deep Creek Lake
GA
1st thru 4th order streams
Aquatic Life and Wildlife Cause Unknown
Source Unknown
Low No2002 Fish and Benthic IBIs
Page 49 of 50Category 5 Waters29-Mar-10 FINAL FINAL
Assessment Unit
Basin Name
County
Water Type Detail Sources
PriorityCause TMDL In 2 Years
Notes
Designated UseCycle First
Listed
Percent Attributable Risk
Indicator
MD-05020204
Casselman River
GA
Non-tidal 8-digit watershed
Aquatic Life and Wildlife Chlorides
Urban Runoff/Storm Sewers
Low No
The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.
2010
26%
Fish and Benthic IBIs
Page 50 of 50Category 5 Waters29-Mar-10 FINAL FINAL