Transcript Slide 1

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EPA BAY STUDY
• BAY GRASSES DECLINED BY 85%
• FISHERIES IN SERIOUS DECLINE
• EXCESS NUTRIENTS/SERIOUS WQ DECLINE
• ELEVATED HEAVY METALS & TOXICS
• ANOXIC WATERS INCREASED 15X
• ALGAL OUTBREAKS THROUGHOUT BAY
CHESAPEAKE BAY AGREEMENTS
1983
1987 2000
Maryland
Virginia
Pennsylvania
District of Columbia
EPA
Executive Council
Chesapeake
Bay
Commission
5
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10-fold increase in Oysters
Restore 2,010 miles of riparian forest buffers
“Toxic-free Bay”
Preserve 20% of Bay watershed
Reduce rate of harmful sprawl by 30%
Establish harvest targets & restore crab fishery
Expand public access by 30%
Meaningful watershed experience and…
 Remove
Bay from impaired
waters list by 2010
Over 90% of the Bay
and its tidal rivers are
impaired due to low
dissolved oxygen
levels and poor water
clarity, all related to
nutrient and sediment
pollution.
Triggered EPA
authority to develop
TMDLs since not
removed from list by
2010.
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POINT SOURCES: About 20% of total N, 22% of total P entering Bay
 Substantial drop since 1985; largest portion of reductions to date
 Nutrient Removal Technology at municipal WWTP, Phosphorus
Detergent Bans, local efforts, WQIF support, manufacturing process
changes at industrial dischargers
NONPOINT SOURCES: About 80% of N & 78% of P into Bay
 All of the sediment loads come from NonPoint Sources
 Agriculture – Largest single source of N, P, Sediment
 Developed Lands/Stormwater Runoff: Only major source increasing
 On-Site Septics: 1.3 M systems; loads increased 21% (1985- & 2003)
 Air Deposits: Contributor of nitrogen; Airshed 14 states; 50% from us
 Lawns/Turf grass: Single largest crop in Bay region (1M acres VA
portion)
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Sources of Nitrogen
from Virginia
Sources of Phosphorus
from Virginia
WWTP
WWTP
26%
18%
Agriculture
38%
Forest
Agriculture
14%
Forest
16%
Developed
20%
Developed
18%
N and P values from 2008 Scenario of Phase 5.2 Watershed Model
50%
WV
3%
DE
3%
VA
26%
DC
1%
WV
4%
NY
6%
Nitrogen*
DC
1%
MD
19%
MD
20%
PA
41%
DE
2%
NY
5%
VA
45%
PA
24%
Phosphorus
*EPA estimates a nitrogen load of 284 million lbs nitrogen in 2008. EPA
assumes a reduction of 7 million lbs due to the Clean Air Act. This
leaves 77 millions lbs to be addressed through the TMDL process.
WHAT CAN BE DONE
TO RESTORE THE
BAY?
How can we
measure progress?
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Establish Water Quality Standards to protect uses
 Monitor waters and assess condition
 Place Impaired Waters on 303(d) List due to
violations of State WQ Standards
 Develop TMDL – “Total Maximum Daily Load” - for
Impaired Waters
 Develop TMDL Implementation Plan
 Implement TMDL Plan
 Remove Waters from 303(d) List when
monitoring shows WQ Standards achieved
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• EPA set a pollution diet
to meet states’ Bay clean
water standards
• Caps on nitrogen,
phosphorus and
sediment loads for all 6
Bay states and DC
• States set load caps for
various pollution sources
• Second phase focused on
local segments – with
local benefits too
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Largest, most complex ever
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92 smaller TMDLS (39 in VA)
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Involves interstate waters (VA, MD, PA, NY, WVA, DE, DC)
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64,000 sq. miles
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Impacts of 17M people, 80,000 farms, 483 major
treatment plants, thousands of other sources
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Satisfies Consent Decree
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Presidential Executive Order
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25% reduction in Nitrogen
24% reduction in Phosphorus
20% reduction in Sediment
How is the Bay TMDL Different
• New Clean-up Goal
(practices in place 2025; 60% by 2017)
• State Watershed Implementation Plans
(roadmaps)
• 2-Year Milestone Process
• Relative Effectiveness of Nutrient Reductions
• Accountability Measures
•“Reasonable Assurance”
• Federal Consequences
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Continues earlier restoration efforts
Focused on Rivers
Focused on Major Pollution Sources
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Baseline N Load (1985): 310 Million Lbs
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Progress - 2009 Loads: 247 Million Lbs/Year
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Tributary Strategy Goal: 191 Million Lbs/Year
TMDL Target:
185 Million Lbs/Year
How to make sure local waters benefit too?
 How to also protect healthy watersheds?
 Is there low-hanging fruit/cost effective practices?
 What motivates smaller (non-MS4) localities to
participate?
 Are we relying too heavily on trading?
 How will trading and offsets affect local water quality?
 When will the public have input into local plans?
 Who pays?
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“Understanding the cost of
clean Bay should n
compromise our goals
diminish our progress
Chesapeake Bay Commission former Chairm
Russ Fairc
(R-P
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THE END (not really)!!!
Questions???