City of Alexandria and Alexandria Renew Enterprises

68 Pages·2017·5.44 MB·English

by  Angela Jones

City of Alexandria and
Alexandria Renew Enterprises
Combined Sewer System Permit
and Long Term Control Plan Update
CSS Stakeholder Group Meeting #4
February 1, 2018
Presentation Outline
• Welcome
• Purpose and Goals
• Green Infrastructure Update
• Summary of CSO Program Options and Performance
• Life Cycle Cost Estimates, Schedule, Community Impact, O&M, and Adaptability
• Public Comment and Questions
• Wrap-Up
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Purpose and Goals
Public Participation Goals
Increase stakeholder
Develop basic
awareness of the City’s
understanding of the
combined sewer
Long Term Control Plan
system and the Long Term
Update recommended
Control Plan Update
strategies.
program.
Solicit feedback on the
Awareness, consideration
combined sewer
and responsiveness on the
control strategy
Long Term Control Plan.
recommendations.
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Stakeholder Group Charge
Resolution No. 2781
• Provide recommendations on how a primary combined sewer system
control strategy can accomplish the City’s goals and permit requirements
while minimizing impacts to the community
• Review and monitor the preparation of the Long Term Control Plan
• Permit and regulatory issues
• Engineering and analysis of infrastructure alternatives
• Implementation plan schedule and funding strategy
• Serve as a central information receiving/dissemination body related to
the Long Term Control Plan
• Additional engagement opportunities following submission of the plan
(working groups, implementation groups)
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Alexandria’s Goals for the CSO Program
WATER QUALITY
Enhance local infrastructure to improve the
water quality of Alexandria’s waterways.
INVESTMENT STEWARDSHIP
Be good stewards of the rate payers’ investments in
both the short term and long term.
COMMUNITY BENEFITS AND CONSTRUCTION IMPACTS
Engage the community, explore opportunities,
and be a good neighbor.
LEGISLATIVE MANDATE
Implement the CSO Program to meet the legislative mandate.
6
CSS Stakeholder Group Meeting #4
Green Infrastructure Update
Green Infrastructure Update
• City is refining the evaluation of Green Infrastructure (GI) and
will report to the Group:
• Lessons learned from City’s experience and other CSO programs
• Opportunities and challenges in the combined sewer area
• Cost/benefit analysis of GI in the combined sewer area
• Potential GI strategies
• Present results at Stakeholder Meeting #5
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Summary of Options and Performance
Alexandria’s Combined
Sewer System
Pendleton St.
CSO-001
City: ~15.2 square miles
Combined Sewer
Service Area
CSO Area: ~540 acres, 6% of the city
Duke St.
CSO-003 & CSO-004
Four permitted outfalls by DEQ: P
o
t
o
•CSO-001 (Oronoco Bay) m
a
c

•CSO-002 (Hunting Creek) R
i
v
e
•CSO-003/004 (Hooffs Run) r
Hooffs Run
Alexandria Renew
Enterprises Water
Resources Recovery
Facility
Hunting
Royal St.
Creek
CSO-002
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