EPA Evaluation of
Delaware's
2012-2013 Milestone Progress and
2014-2015 Milestone Commitments to
Reduce Nitrogen, Phosphorus and Sediment
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T- I
Overview
Two-year milestones are short-term objectives under the Chesapeake Bay Total Maximum Daily Load (Bay
TMDL) accountability framework used to assess progress toward restoration goals while allowing jurisdictions
to flexibly adapt their Watershed Implementation Plans (WIPs) to meet those goals. When fully implemented,
tire seven WIPs will ensure all practices necessary to meet water quality standards in the Chesapeake Bay will be
in place by 2025. By 2017, jurisdictions should have practices in place that would achieve 60 percent of necessary
pollutant reductions compared to 2009.
Pollutant Reduction Progress and Future Targets by Source Sector
According to the data provided by Delaware, die state nearly achieved its 2013 milestone targets for nitrogen.
Delaware did not achieve its milestone targets for phosphorus and sediment. While the sediment targets were not
achieved, Delaware has already met its 2025 WIP sediment target. Delaware finished the 2012-2013 milestone
period less than 5,000 pounds behind schedule for nitrogen reductions, but was more than 45,000 pounds behind
schedule for phosphorus reductions, and nearly 15 million pounds behind schedule for sediment.
Delaware's 2014-2015 mUestone wastewater strategy and best management practice (BMP) commitments for other
source sectors would reduce phosphorus by nearly 46,000 pounds and decrease sediment by nearly 12 million
pounds by die end of 2015, compared to the 2009 baseline. Nitrogen totals indicate a reduction of nearly 200,000
pounds over die 2009 baseline, however this reduction is nearly 290,000 pounds less than is needed to remain on
track to meet its 2017 target. Delaware will need to increase its nitrogen reductions in order to get back on target.
Nitrogen Loads and Goals
350
Phosphorus Loads and Goals
Sediment Loads and Goals
too
80
60
-K 40
<£
20
2009 2013	2015 2017
Baseline Mlestone /Progress Target/Milestone Target
2009 2013	2015 2017
Baseline Milestone/Progress Target/Milestone Target
] Urban Runoff
Wastewater
^ Septic
2009 2013	2015 2017
Baseline MHestme/Progress Target/Milestone Target
I Forest**
| Agriculture
" Forest includes other sources
Note: 2013 milestones and 2013 progress are based on 2010 conditions. For additional information on pollution reduction progress, commitments, and BMP see http://stat.chesaiiaakehaY.net/milestoiies
2014 Oversight Status i i Ongoing l l Enhanced	Backstop
	 Agriculture; Urban/Suburban: Wastewater: 	 Trading/Offsets:
Ongoing Oversight

Ongoing Oversight
Ongoing Oversight

Ongoing Oversight
For full details on EPA's evaluation of Two-Year Milestones, visit the Chesapeake Bay TMDL website.

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EPA Evaluation of Delaware's 2012-2013 Milestone Progress and 2014-2015 Milestone Commitments to Reduce Nitrogen, Phosphorus and Sediment
2012-2013 Milestone Progress and 2014-2015 Milestone Review
The EPA review of progress toward meeting 2012-2013 milestones shows Delaware has made enough progress
in the agriculture and stormwater sectors to ensure implementation is occurring, even though all of its milestone
commitments were not achieved. Delaware will need to place additional emphasis on improving implementation
in the agriculture and wastewater sectors to stay on track to meet its commitments by 2025. Delaware did not meet
their milestone targets, in part, because improved scientific information approved by the Chesapeake Bay Program
(CBP) partnership and incorporated into CBP's decision-support tools in late 2013 indicated agricultural Best
Management Practices (BMPs) installed in Delaware were not as effective as anticipated. As a result, nitrogen and
phosphorus loads increased. Delaware's anticipated reductions for the 2014-2015 milestone period should keep it
on track to meet die 2017 target of having practices in place to achieve 60 percent of necessary phosphorus and
sediment reductions compared to 2009, but projected reductions for nitrogen are behind schedule.
Strengths
¦	Acquired additional funds necessary to meet implementation goals for cover crops
¦	Promulgated revised Sediment and Stormwater Regulations and Onsite Wastewater Regulations
¦	Included provisions for offsets and/or fee in lieu
¦	Will issue general permit for 150 concentrated animal feeding operations (CAFOs) or 100 individual CAFO permits, a
major step toward reducing the permit backlog
¦	Will develop and implement a method of tracking and reporting agriculture non-cost share BMPs such as
conservation tillage
¦	Will provide training on the revised regulation for sediment and stormwater, and conduct maintenance and
construction inspections
¦	Will refine Sediment and Stormwater Program offset program by December 2015
Shortfalls
¦	Delaware did not meet its nitrogen, milestone in in 2012-2013 in the agriculture and stormwater sectors and is
substantially off the planned 2015 target for nitrogen
¦	Final wastewater treatment permits were not reissued during 2012-2013 milestone period
Issues to Address
¦	Increase implementation progress during 2014-2015 milestone period to get back on track to meet nitrogen
targets for 2015
¦	Increase the compliance and monitoring program for nutrient management
¦	Reissue all expired wastewater treatment plant permits by December 31, 2014
Potential Federal Actions and Assistance
EPA will maintain "Ongoing Oversight" of die Delaware programs for all sectors. EPA may downgrade die
Agriculture sector to "Enhanced Oversight" within die milestone period unless Delaware details how it will fund
and implement load reductions for highest priority water quality BMPs, show progress that puts Delaware on
track to meet its 2017 goal, and issues CAFO permits to cover 150 animal operations. EPA may downgrade the
Wastewater sector to "Enhanced Oversight" if permits for expired significant wastewater treatment plants are not
reissued prior to December 31, 2014.
For the full details of EPAk evaluation of Delaware's 2012-2013 milestone progress and 2014-2015 milestone
commitments, please see Delaware's Full Evaluation Report.

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