&
O
Midpoint Assessment of the
Chesapeake Bay
Total Maximum Daily Load
Overview
The Chesapeake Bay Program (CBP) partnership set restoration goals under
the Chesapeake Bay Total Maximum Daily Load (Bay TMDL) of having
all practices in place by 2025 to achieve the nitrogen, phosphorus and
sediment pollution reductions necessary to meet applicable Chesapeake
Bay water quality standards, with practices In place by the 2017 midpoint to
achieve 60 percent of the needed pollutant reductions,
The seven jurisdictions committed to implementation of the Bay TMDL in
three phases—developing Phase I and Phase II Watershed Implementation
Plans (WIPs) in 2010 and 2012 and finalizing their Phase III WIP in 2019, This
commitment was reaffirmed through the signing of the 2014 Chesapeake
Bay Watershed Agreement.
Pollutant Reduction Progress and
Future Targets
Collectively, the six Bay watershed states and the District of Columbia have
made considerable progress in reducing pollution to local waters and the
Bay, That progress has been demonstrated in measurable ways, including
record acreage of underwater grasses and the highest estimates of water
quality standards attained in more than 30 years,
According to data submitted by the Bay jurisdictions, while the CBP
partnership exceeded the 60 percent goals for reducing phosphorus and
sediment as measured under the current suite of modeling tools, it did
not achieve its 2017 goal for reducing nitrogen, Full evaluations for each
jurisdiction can be found at www.epa.gov/chesapeake-bav-tmdl.
Efforts to improve local water quality upstream will benefit the Chesapeake
Bay restoration. Since 2010, in Maryland, streams and lakes previously
impaired by phosphorus and total suspended solids are nov*/ showing higher
dissolved oxygen levels and increased submerged aquatic vegetation,
which has led to improvements in aquatic life. Since 2014, Pennsylvania
has removed 17 waterbodies in the Susquehanna River watershed from the
impaired waters listing for nutrients and/or sediment,
Two-vear milestones are short term objectives in the Bay TMDL
accountability framework used to assess progress toward restoration
. It, ii



The Chesapeake Bay Total Maximum Daily Load (Bay
TMDL) is a comprehensive "pollution diet" to restore
the health of the Bay and its local streams, creeks and
rivers. The Bay TMDL—the largest such cleanup plan
ever developed by the EPA—sets limits on nitrogen,
phosphorus and sediment pollution necessary to meet
water quality standards in the Bay and its tidal rivers.

-------
goals while allowing jurisdictions to flexibly adapt their WIPs, EPA will continue to evaluate the jurisdictions' progress
on achieving its two-year milestone commitments on a more localized scale using metrics that include monitoring
information from the CBP partnership's extensive network of stations throughout Bay watershed, EPA will also continue
to assess progress by the jurisdictions in meeting their implementation commitments, such as developing programs to
permit, finance, install and maintain pollution controls, In addition, EPA will use upgraded modeling tools designed by the
CBP partnership to estimate progress toward the 2025 goals, As a result, assessments of progress levels will change in
the next round of evaluations,
Jurisdiction Sector-Specific Milestone Achievements and
Shortfalls
Since 2010, EPA has conducted evaluations of the jurisdictions' two-year milestones, as well as assessments of the state-
wide wastewater, agricultural, stormwater and trading/offset programs, Based on these evaluations, EPA has highlighted
achievements and shortfalls, using a "ranking system" shown below,
2018 Oversight Status	Ongoing	Enhanced	Backstop

Agriculture
Urban/Suburban
Wastewater
Trading/Offsets
Delaware
Enhanced Oversight
Ongoing Oversight

Ongoing Oversight

Ongoing Oversight





District of
Columbia
Not Applicable

Ongoing Oversight

Ongoing Oversight

Ongoing Oversight





Maryland
Ongoing Oversight

Enhanced Oversight

Ongoing Oversight

Ongoing Oversight





New York
Ongoing Oversight

Ongoing Oversight
Enhanced Oversight
Ongoing Oversight





Pennsylvania
Backstop Action
Levels

Backstop Action
Levels

Ongoing Oversight

Enhanced Oversight





Virginia
Ongoing Oversight

Ongoing Oversight

Ongoing Oversight

Ongoing Oversight





West Virginia
Ongoing Oversight

Ongoing Oversight

Ongoing Oversight

Ongoing Oversight
Definitions Ongoing Oversight: EPA will continue to monitor progress.
Enhanced Oversight: Having identified specific concerns with a jurisdiction's implementation of strategies to
meet IMDI goals, EPA may take additional federal actions to ensure that jurisdiction stays on-track.
Backstop Actions Level: Having identified substantial concerns with a jurisdiction's actions to meet the TMDL
goals, EPA has taken federal actions to help the jurisdiction get back on-track,
. It, ii
Chesapeake Bay Program

-------
Agriculture
EPA recognizes that success can be achieved when states have strong, well implemented regulatory programs,
voluntary incentive programs that address farming operations, and/or targeted annual state agriculture cost share and
other financing programs that supplement the U.S. Department of Agriculture (USDA) Farm Bill funding for agricultural
conservation practices called for in the state VVIPs.
Maryland's federal and state regulatory programs, including Concentrated Animal Feeding Operation (CAFO) permitting
programs and state-wide nutrient management regulatory programs, cover most of its agricultural operations. Maryland
has a dedicated annual agriculture cost share program for implementing the priority agricultural practices in its WIP.
Virginia's state permitting program regulates most of its poultry and swine operations, The Commonwealth has also
developed voluntary incentives such as the Virginia Resource Management Plan which encourages non-regulated
farmers to implement agricultural conservation practices, In addition, Virginia has a dedicated annual agriculture cost
share program for implementing priority agricultural practices.
Although states can have very different agricultural programs and approaches, in some cases, they are not making
sufficient progress in implementing their planned programs and policies and achieving their pollutant reduction
commitments. This lack of progress can be partially attributed to inadequate compliance assurance for state regulatory
programs, lack of strong supplemental state voluntary incentive programs, and the absence of dedicated and targeted
state agricultural cost share programs and other mechanisms to adequately fund agricultural conservation practices.
For example, while Pennsylvania effectively regulates hundreds of livestock operations through its CAFO permit program,
Pennsylvania needs to improve the implementation of its state-wide manure management and agriculture erosion and
sediment regulatory programs for thousands of other farms. Pennsylvania has also yet to adequately update its nutrient
credit trading regulations pertaining to agriculture,
in Delaware, an agricultural cost-share program provides funding to farmers for implementing conservation practices, but
Delaware needs to ensure adequate regulatory coverage of its livestock operations by more timely processing of its CAFO
permit applications, and adequately implementing recently developed verification protocols of its nutrient management
program,
Urban/Suburban
EPA's milestone and stormwater program evaluations found that success can be achieved when strong federal and state
regulatory programs are enforced and have adequate financial support, Trading programs have also shown success
in cost-effectively achieving pollution load reductions in the stormwater sector, For example, Virginia has a successful
program for highway construction mitigation with land bank conservation practices,
Most states have passed bans on fertilizer to reduce the effect of nutrient runoff from the urban sector, and have
established Municipal Separate Storm Sewer Systems (MS4) permits that must meet the requirements of the Chesapeake
Bay TMDL,
The District of Columbia has promulgated regulations that require retention of 1,2 inches of stormwater, developed a
stormwater retention credit program and developed a stormwater user fee discount program to encourage stormwater
controls,
All the jurisdictions have made significant efforts to inform the public of their role in Bay restoration and offered trainings
. It, ii

-------
\	SDRgSlI©
to stormwater permittees on Best Management Practices (BMPs).
However, while states have improved their regulatory programs, overall loads in this sector continue to increase due to
population growth and development. Maryland and Pennsylvania committed to significant reductions in this sector and
will need to reevaluate their strategies to meet the 2025 goals. In some states, over 70 percent of the urban/suburban
land is not regulated under an MS4 permit, which means the jurisdictions need to either implement additional voluntary
programs or consider broadening their regulatory authorities to reduce runoff pollution from these areas.
Additional inspection and enforcement programs are also needed to ensure compliance with MS4 permits, Many of those
MS4 permits are slated to expire in the coming years, and jurisdictions will need to ensure timely reissuance of permits
which could incorporate new pollution reduction strategies such as trading.
Wastewater
The wastewater sector has effectively achieved its 2025 load reduction goals 10 years ahead of schedule due to treatment
plant upgrades, advances in technology, enforceable Clean Water Act (CWA) discharge permits and funding from multiple
sources, These Investments were largely driven by a 2004 nutrient permitting approach that called for placing enforceable
permit limits on pollution from wastewater treatment plants,
States in the watershed have used innovative solutions, such as trading programs, to ensure regulatory compliance in a
timely, cost-effective manner, The wastewater sector success has also been aided by state laws setting strict limits on the
amount of phosphorus in consumer cleaning products, including laundry and dishwasher detergents,
Moving forward, jurisdictions will need to ensure that this sector maintains its nutrient and sediment pollutant limits in
the face of growing populations, increased storm events, sea level rise, temperature changes and other factors. New
York did not achieve its nitrogen goals in this sector, largely due to the failure and reconstruction of its largest plant in
Binghamton/Johnson City, Jurisdictions may need to consider more stringent limits for this sector to meet or maintain
the overall pollution reduction goals of the Bay TMDL, EPA and the jurisdictions need to continue to invest in new tools
to help communities reduce energy use, reuse water and optimize operations to promote additional nutrient removal at
wastewater treatment plants,
Air
In the Bay TMDL, EPA committed to reducing nitrogen deposition to the Bay and its surrounding waters by a total of 3,7
million pounds by 2025, As of 2017, EPA and its partners have achieved an estimated 3,2 million pounds of reductions
through actions under the Clean Air Act, This puts EPA on track to meet its commitment, Clean Air Act regulations have
also led to sharp reductions in nitrogen that washes into the Bay after falling on watershed lands and upstream waters,
EPA and the jurisdictions will need to continue implementing Clean Air Act regulations for both stationary and mobile
source pollution to ensure that the air deposition reduction goals will be achieved,
Looking Forward
The CBP partnership is moving into its third and final phase of implementing the Chesapeake Bay TMDL, Using
information gathered over the past seven years, the jurisdictions are building on their implementation strategies to
optimize their pollution reduction practices, Since many of these practices are implemented at the local level, local
engagement and participation will be increasingly critical to achieving water quality goals going forward, Impacts from
increased loads from the Conowingo Dam and helping communities become more resilient will also be addressed.


-------