This is the 2014 Integrated Report. EPA approved this submission in accordance with Sections 303(d), 305(b), and 314(l) of the Clean Water Act, on October 16, 2015. The Integrated Report (IR) combines two water quality reports required under sections 305(b) and 303(d) of the federal Clean Water Act. Section 305(b) requires states, territories and authorized tribes to perform annual water quality assessments to determine the status of jurisdictional waters. Section 303(d) requires states, territories and authorized tribes to identify waters assessed as not meeting water quality standards(see Code of Maryland Regulations 26.08.02). Waters that do not meet standards may require a Total Maximum Daily Load to determine the maximum amount of an impairing substance or pollutant that a particular water body can assimilate and still meet water quality criteria. Historically, the 303(d) List and the 305(b) report were submitted to the Environmental Protection Agency (EPA) as separate documents but more recent guidance has called for combining these two reports into a single biennial publication. More information is available at http://www.mde.state.md.us/PROGRAMS/WATER/TMDL/INTEGRATED303DREPORTS/Pages/Programs/WaterPrograms/TMDL/Maryland%20303%20dlist/index.aspx A searchable version of this data is available at http://www.mde.state.md.us/programs/Water/TMDL/Integrated303dReports/Pages/303d.aspx
This dataset has the following 23 columns:
| Column Name | API Column Name | Data Type | Description | Sample Values |
|---|---|---|---|---|
| Cycle_First_Listed | cycle_first_listed | number | Report cycle year when the waterbody was first listed | 1996 2014 2012 2002 2008 view top 100 |
| Assessment Unit ID | assessment_unit_id | text | Identifier for the specific area that was assessed | MD-02130802 MD-02141005 MD-02130906 MD-02130804 MD-BACOH view top 100 |
| Waterbody_Name | waterbody_name | text | Picture Spring Branch POTOH2 - Port Tobacco River Oligohaline POTOH3 - Nanjemoy Creek POTOH1 - Lower Potomac River Oligohaline Potomac River Middle Tidal view top 100 | |
| Basin_Name | basin_name | text | Name of the basin where the waterbody is located | Upper North Branch Potomac River PATMH - Patapsco River Mesohaline Youghiogheny River Savage River PAXMH - Lower Patuxent River Mesohaline view top 100 |
| HUC | huc | text | The eight digit USGS hydrologic unit code | 02060003 02070002 02060002 02060004 02060006 view top 100 |
| Basin_Code | basin_code | text | 02141005 02131101 02130903 05020201 02141006 view top 100 | |
| Subbasin_Code | subbasin_code | text | 021310021002 021306090380 021309071046 021311010884 021310020997 view top 100 | |
| County | county | text | Two letter abbreviations for the county or counties where the waterbody is located | GA AA BA CE CH view top 100 |
| Water_Type | water_type | text | RIVER ESTUARY IMPOUNDMENT BEACH OCEAN view top 100 | |
| Water_Type_Detail | water_type_detail | text | Chesapeake Bay segment Non-tidal Segment(s) Non-tidal 8-digit watershed 1st thru 4th order streams Impoundments view top 100 | |
| Assessment Unit Size | assessment_unit_size | number | 79.7 0.085 186.3 0 292.42 view top 100 | |
| Assessment Unit Size Units | assessment_unit_size_units | text | Miles Square Miles Acres view top 100 | |
| Use_Class | use_class | text | II I III-P III view top 100 | |
| Designated_Use | designated_use | text | Aquatic Life and Wildlife Fishing Open-Water Fish and Shellfish Subcategory Shellfishing Seasonal Migratory Fish Spawning and Nursery Subcategory. view top 100 | |
| Listing_Category | listing_category | text | 4a 2 5 3 4c view top 100 | |
| Cause | cause | text | Phosphorus (Total) Nitrogen (Total) Temperature, water Cause Unknown Fecal Coliform view top 100 | |
| Priority | priority | text | Low Medium High view top 100 | |
| Impairment_Addressed_Within_2_Yr | impairment_addressed_within_2_yr | text | FALSE TRUE view top 100 | |
| Action | action | text | TMDL approved WQA approved Delisted based on new data 12-digit listings now subsumed by 8-digit listing Relisted view top 100 | |
| Action_Year | action_year | number | 2012 2008 2006 2014 2004 view top 100 | |
| TMDL_ID | tmdl_id | text | 05020201pHYR 02141005MPR 02130906MPR 02130804MLGF 02130802MLGF view top 100 | |
| Notes | notes | text | The Chesapeake Bay TMDL was finalized on 12/29/2010. Temperature measurements exceed criteria and no coldwater obligate taxa were found. Logger data demonstrates attainment of temperature criteria (68 degrees Fahrenheit). Temperature measurements exceed criteria but coldwater obligate taxa are present. More investigation is needed to make a conclusive assessment. Insufficient sample size. view top 100 | |
| Link to TMDL | link_to_tmdl | text | http://www.mde.state.md.us/programs/Water/TMDL/ChesapeakeBayTMDL/Pages/programs/waterprograms/tmdl/cb_tmdl/index.aspx http://www.mde.state.md.us/programs/Water/TMDL/ApprovedFinalTMDLs/Pages/Programs/WaterPrograms/TMDL/approvedfinaltmdl/tmdl_final_w_md_ph.aspx http://www.mde.state.md.us/programs/Water/TMDL/ApprovedFinalTMDLs/Pages/Programs/WaterPrograms/TMDL/approvedfinaltmdl/tmdl_final_youghiogheny_ph.aspx http://www.mde.state.md.us/programs/Water/TMDL/ApprovedFinalTMDLs/Pages/TMDL_final_MD_Coastal_Bays_nutrients.aspx http://www.mde.state.md.us/programs/Water/TMDL/ApprovedFinalTMDLs/Pages/Programs/WaterPrograms/TMDL/approvedfinaltmdl/wqa_final_unbpotomac_metals.aspx view top 100 |