conservation practices are working: responses from local creeks to chesapeake bay
DESCRIPTION
Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay. Katherine Antos Water Quality Team Leader Chesapeake Bay Program U.S. Environmental Protection Agency December 4, 2012. Watershed population has more than doubled since 1950. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/1.jpg)
1
Conservation Practices are Working:
Responses from Local Creeks to Chesapeake Bay
Katherine AntosWater Quality Team LeaderChesapeake Bay Program
U.S. Environmental Protection Agency
December 4, 2012
![Page 2: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/2.jpg)
Watershed population has more than doubled since 1950
![Page 3: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/3.jpg)
Chesapeake Bay Watershed
Monitoring Network
• 120 stations in 2012
• Started with 31
![Page 4: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/4.jpg)
Long-term (1985-2010) water quality
monitoring stations in the Chesapeake Bay
Watershed
• 9 River Input Stations
• 22 Upstream Stations
![Page 5: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/5.jpg)
Flow-adjusted Total Nitrogen Trends at 31
sites—1985-2010
•21 (68%) down
• 2 up (6%)
• 8 not significant (26%)
![Page 6: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/6.jpg)
Flow-adjusted Total Phosphorus Trends at 31 sites—1985-2010
• 22 (71%) down
• 4 up (13%)
• 5 not significant (16%)
• 13 down sites exceed 50% reduction
![Page 7: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/7.jpg)
Flow-adjusted Total Sediment Trends at 31
sites—1985-2010
•10 down (32%)
• 7 up (23%; 5>50%)
• 14 not sig. (45%)
![Page 8: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/8.jpg)
Approximately 455 million pounds of nitrogen during the 2011 water year.
2025 Planning
Target
![Page 9: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/9.jpg)
Approximately 48 million pounds in the 2011 water year.
2025 Planning
Target
![Page 10: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/10.jpg)
Modeling Information Using Average Hydrology
Approximately 267 million pounds nitrogen delivered to Bay in 2011
![Page 11: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/11.jpg)
Modeling Information Using Average Hydrology
Approximately 18.3 million pounds phosphorus delivered to Bay in 2011
![Page 12: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/12.jpg)
13%
12%
18%
15%
42%
Excellent Good
Fair Poor
Very Poor
Between 2000-2010, more than 15,000 sites were sampled and rated for biological integrity.
Average stream health scores indicated 57% of sites in very poor or poor condition.
![Page 13: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/13.jpg)
Data summarized by sub-watersheds indicate almost half of sub-watersheds are in fair condition. Degradation can be very localized
15%
47%
25%
5%
6%3% GOOD FAIR
POOR VERY POOR
NO RATING NO DATA
![Page 14: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/14.jpg)
Chesapeake Bay
Tidal Water Quality
Monitoring Station
Network
• 178 Stations• 92 Segments
![Page 15: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/15.jpg)
TNAnnual Trends
60%
4%
35%
Total NitrogenNO TREND DEGRADING IMPROVING
![Page 16: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/16.jpg)
TP
73%
4%
23%
Total PhosphorusNO TREND DEGRADING IMPROVING
Annual Trends
![Page 17: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/17.jpg)
Chlorophyll-a
62%
24%
14%
Chlorophyll-aNO TREND DEGRADING IMPROVING
Annual Trends
![Page 18: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/18.jpg)
TSS
66%4%
30%
Total Suspended SolidsNO TREND DEGRADING IMPROVING
Annual Trends
![Page 19: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/19.jpg)
Water Clarity
45%
50%
5%
Water ClarityNO TREND DEGRADING IMPROVING
Annual Trends
![Page 20: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/20.jpg)
Bottom DO
73%
17%
10%
Dissolved OxygenNO TREND DEGRADING IMPROVING
Summer Trends
![Page 21: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/21.jpg)
JHU and UMCES: Mid-late summer dead zones in deep channel leveled off and declining since 1980s due to management actions
![Page 22: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/22.jpg)
Decreasing trends in water clarity have our Bay scientists questioning the causes
![Page 23: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/23.jpg)
Long term increases in Bay grasses keep hitting glass ceiling—lack of improving clarity, hotter summers
![Page 24: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/24.jpg)
This and previous adult abundance indicator show crab populations responding to good, baywide fishery management decisions since 2009 though annual variation
![Page 25: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/25.jpg)
Overall population numbers solid; individuals show signs of less than quality habitats, food
![Page 26: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/26.jpg)
26
Chesapeake Bay TMDL Based on 7 Watershed Implementation Plans
![Page 27: Conservation Practices are Working: Responses from Local Creeks to Chesapeake Bay](https://reader035.vdocument.in/reader035/viewer/2022062410/56815ebf550346895dcd453e/html5/thumbnails/27.jpg)
Katherine Antos410-295-1358
www.epa.gov/chesapeakebaytmdl
www.chesapeakebay.net