M02142012 TMDL PRESENTATIONTMDLTMDL
UpdateUpdate
Briefing to City Council
02/14/2012
1
Background
•Section 303d of the Clean Water Act requires
the state to identify all water “bodies” that do
not meet their designated use due to
pollutants –Swimmable Fishable
•The state then studies these Water Bodies
and develops a Pollution Diet or TMDL, that is
the Total Maximum Daily Load the water body
can accept of the pollutant and still meet it’s
designated use.
2
Impaired
Waters in
Virginia
Beach:
54 Impaired
Waters
with
152
Impairments
3
Typical impairments are for:
•bacteria,
•sediment,
•nitrogen,
•phosphorus,
•lack of aquatic vegetation,
•low dissolved oxygen,
•pH,
•chlorides
•PCB’s or mercury in fish tissues
4
•State designates impaired waters and develops
an impaired waters list (TMDL)
•State meets with local stakeholders
•TMDL is established
•Watershed improvement plans (WIP’s) are
developed with locality and stakeholders and sent
to EPA for Approval
•but … if you don’t comply the EPA/DEQ will
assume control
5
VB WIPSVB WIPS
•Lynnhaven River and all it’s tributaries
•Southern Rivers
•Nanny Creek
•West Neck Creek
•Milldam Creek
•Elizabeth River
•Lower sections of the North Landing River
•Sites on Back Bay
6
Chesapeake Bay TMDL
Since 2000 there was insufficient progress by
States in Bay Water Quality. EPA was sued by
CBF and Other Environmental Organizations. In
suit settlement EPA agreed to take Lead in
developing the Chesapeake Bay TMDL
Virginia, Maryland, New Jersey, Delaware,
Pennsylvania, New York and West Virginia are all
a part of the Chesapeake Bay TMDL
A Watershed Implementation Plan was developed
and the States have to meet it or the performance
7
of the plan
Chesapeake Bay TMDL
The Chesapeake Bay is being implemented in 3 Phases.
Phase I is a coarse designation of pollutant loadings to the
major tributaries to the Bay -The James River York River
Susquehanna River … etc. VB has raised objection to
Lynnhaven in James
Virginia WIP I November 9, 2010
Phase II is the delegation of the loads to the states and
localities. Virginia WIP II December 15, 2011
Phase III will be in 2017 after EPA has been able to assess
the effectiveness of Phase II (Report Card on Progress)
8
Virginia Beach Studies (2)Virginia Beach Studies (2)
1.Done to support the Phase WIP II Strategies
2.Kimley-Horn and Associates, Inc 10/19/2011 –
to establish our land cover uses
3.URS Corporation 12/2011 to establish our
required Pollutant Removal:
Nitrogen -126,280 pounds/year
•
Phosphorus -2,217 pounds/year
•
Sediment -5,243,121 pounds/year
•
9
Land Use By Watersheds
250.00
Right of Way
200.00
Water
VACANT
GOV
150.00
Square Miles
PARK
AG
IND
100.00
COM
MF
50.00
SF
0.00
Chesapeake Bay Southern Ocean Watershed
WatershedWatershed
10
Timeline
Draft strategies to HRPDC on Dec 28, 2011
?
Joint staff meeting with CBF on Jan 27, 2012
?
Phase II WIP submitted to DCR on Feb1, 2012
?
DCR review underway
?
60% of water quality improvements must be complete
?
by 2017
100% of water quality improvements and measures
?
must be complete by 2025.
11
Submittals to DCR
1.Develop a current BMP inventory
2.Evaluate the land use / land cover information included in the
model and provide more accurate land cover information you
may have
3. Review the 2017 and 2025 BMP scenarios as identified in the
Phase I WIP and develop preferred local BMP scenarios that
provide a similar level of treatment
4. Develop strategies to implement the preferred BMP scenarios
5. Identify any resource needs to implement the strategies and
BMP scenarios
12
Virginia Beach StrategiesVirginia Beach Strategies
1.Implement Lynnhaven River Ecosystem Restoration Plan and
Neighborhood SSD Dredging Program
2.Establish Oyster Reefs as BMP’s
3.Retrofit Existing Lakes and Ponds
4.Expand Reforestation/Canopy Enhancement
5.Redevelopment in Strategic Growth Areas
6.Management of Urban Nutrients
7.Increase Street Sweeping
8.Increase Use of Green Technologies
13
9.Expand Sub-basin BMP Retrofits
Virginia
Beach
Watersheds
VB Resourcing Strategy
requires maintaining a balance
?
Water Quality
?
Flood Control
?
Operations and Sustainment
VB Resourcing Strategy also
requires maintaining balance
within the watersheds
?
Chesapeake Bay
?
Southern Waters (Sound)
14
?
Ocean
Population
POPULATION
Ocean
6%
Sound
32%
Bay
62%
15
Ditches
Ditches
Ocean
3%
Ocean 3%
Bay
33%
sound
64%
16
I
mperviousness By total Area
Sound
30%
Bay
66%
Ocean
4%
NAME Impervious Surface Acreage
Chesapeake Bay
Watershed 31,866.00
Atlantic Watershed 1,850.50
Southern
17
Watersheds 14,452.98
Weighted Resourcing
Weighted impact on water quality
?Population 38%
?Ditches 19%
?Imperviousness 43%
18
TMDL Weighted Resourcing
21.40%
Ocean
Sound
49.18%
Bay
29.48%
19
Resourcing StrategiesResourcing Strategies
Find a balance between:
•
Flood Control
–
Water Quality
–
Operations & Sustainment
–
Find a balance between watersheds
•
Develop Cost participation initiatives
•
Multi-agency
–
Public/private
–
NGO/City TF’s & Committees
–
Weigh regulatory enforcement against
•
stormwater fee increases
20
Moving ForwardMoving Forward
Continue with current Stormwater work plan
?
Await DCR review results and publishing of
?
the Virginia Ches Bay TMDL WIP II
Develop TMDL resourcing strategy
?
Implement TMDL Strategies to meet
?
established goals
21
COUNCIL DISCUSSIONCOUNCIL DISCUSSION
22