Florence_Timmonsville Consent Decree NC

Transcription

EXEMPLIFYING SHARED COMMITMENT TO THE
PEE DEE: A PROACTIVE SOLUTION BY THE CITY
OF FLORENCE AND TOWN OF TIMMONSVILLE
Josh Norton, PE
CDM Smith
Michael Hemingway
City of Florence, SC
2014 NC AWWA/WEA 94TH ANNUAL FALL CONFERENCE,
WINSTON-SALEM, NC
Outline
• Background and Introduction of Players
• How Did We Get Here?
• Identifying a Path Forward
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Emergency Support
System Evaluation and Project Need Identification
Consent Decree and System Conveyance Negotiations
Program Funding Plan
• CD Compliance Status
2014 NC AWWA/WEA 94th Annual Fall Conference, Winston-Salem, NC
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Who Are the Players?
City of Florence
Town of Timmonsville
CDM Smith
URS (BP Barber)
EPA Region 4/EPA Headquarters
SCDHEC
EDA
CDBG
USDA
SRF
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City of Florence
“A City of Character”
• Location
• Government
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Drew Griffin, City Manager
Michael Hemingway, Utilities Director
Forrest Whittington, PE, City Engineer
Thomas Chandler, Finance Director
• Water and Wastewater System
• http://www.cityofflorence.com/
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Town of Timmonsville
• Location
• Role in the Pee Dee Region
• Water and Wastewater Facilities
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Water Supply, Quality, and Treatment – 2 GW WTPs; 1.58 MGD
Water Distribution – 37 miles of WM 6”-12”
Water Storage – 3 tanks; 1.03 MG
Wastewater Treatment – 2 MG
Wastewater Collection – 19 miles GS, 7 miles FM, 15 PS
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How Did We Get Here?
• Town of Timmonsville PWS and POTW Regulatory History
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History of poor PWS Sanitary Survey Results
2007 SDWA Consent Order & Amendment
2011 SDWA Consent Order
2011 Corrective Action Plan
10 year history of WWTP effluent permit violations
• Financial Summary
• Call for Help in fall 2012
– Draft CD issued to the Town of Timmonsville Nov. 2012,
including the requirement for the City of Florence to act in
receivership of the Timmonsville PWS & POTW
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Identifying a Path Forward – Emergency Support
• City began immediate operational support
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Emergency water supply connections
Collapsed sewer cleaning and repair
WWTP and WTP operational support
Coordination with SCDHEC local office
• CDM Smith requested assistance
– Site condition assessments for PWS and POTW facilities
– Provide engineering support during weekly CD and
operational meetings between the City, Town, EPA, and
SCDHEC
– Draft Consent Decree review and negotiations
– Draft CD and funding agency work plans
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Identifying a Path Forward – System Evaluation and
Project Need Identification
• Engineering, Operations, Financial, and Legal Analysis of the
Timmonsville PWS & POTW
– Operation under receivership would not be feasible
• Insufficient resources and limited funding avenues
– Conveyance to the City of Florence would be the only viable
solution
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Potential savings through operational economies of scale
Protect the existing City water and sewer customer base
Must be desired by Town of Timmonsville citizens
Additional grant and low interest loans must be secured
– Consolidation alternatives evaluated for Engineering and
Operational considerations
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What Did That Entail?
• Negotiations, Negotiations, Negotiations
– Town of Timmonsville
• Referendum – June 25, 2013
• Conveyance – January 9, 2014
– EPA and SCDHEC
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Condition Assessment
CD Work Plan
CIP Approach
CD Effective Date – November 26, 2013
– Funding Sources: SRF, USDA, EDA, CDBG
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Consent Decree Negotiations
• CDM Smith familiarity
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Lead engineer for the City’s Pee Dee River Regional WTP
Lead engineer for the City’s Florence Regional WWTF
CMOM Gap Analysis
EPA 308 Letter Response Report
Previous EPA Region IV Consent Decree Programs
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• Deleted CD Requirements
Water Loss Study
Financial Analysis and Plan
Identification of all SSOs in previous 24 months
CMOM self assessment
CMOM Program Element Improvement
WWTP Holding Pond Short-Term Management and
Rehabilitation
– Legal Resolutions and Industrial Pretreatment Permit
Revisions
– Financial Operating Reports
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• Modified Deadline Schedule
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Repair Pump Stations
Repair and Rehabilitation of WWTP Sand Filters
Holding Lagoon Volume Reduction
WET testing
Headworks Analysis and Evaluation
WWTP Upgrades
Revised PWS CAP and CAP Implementation
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CMOM Program and CD Documentation
Requirements
• Sanitary Sewer Overflow Response Plan (SORP)*
• Major Pump Stations Power Loss Evaluation (MPS-PLE)*
• Gravity Sewer Mains Preventative Maintenance Program
(GSM-PMP)*
• Timmonsville WWTP Comprehensive Performance
Evaluation (CPE)
• Timmonsville WWTP Composite Correction Plan (CCP)
• Timmonsville WWTP Headworks Analysis
• Timmonsville Whole Effluent Toxicity (WET) Testing
*Includes historical City of Florence POTW facilities
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Clean Water Project Requirements
• Collapsed sewer pipeline replacement
• Collection system lift station upgrades
• Collection system sanitary sewer evaluation studies (SSES)
and rehabilitation
• Timmonsville WWTP Upgrades
– Short-term Management of Holding Pond
– Rehabilitation of sand filters
– WWTP Upgrades
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Drinking Water Project Requirements
• Booster pump stations and other hydraulic system
improvements
• Repair 403 Water Treatment Plant
• U.S. #76 Water Transmission Main Interconnection
• Inspection, repair, and painting of three elevated storage
tanks
• SCADA monitoring of elevated storage tank(s) and/or 403
WTP
• 1,000 meter Automated Meter Reading (AMR) System
• Distribution system water transmission main replacement
and pipeline maintenance
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Funding Source Negotiations
Through the condition assessment and operation of the
system, the identified improvements increased the estimated
the initial capital needs from $6.5M to $12.3M.
• CDBG
• EDA
• USDA
• CWSRF
• DWSRF
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Where Are We Now?
• Clean Water
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Collapsed sewer repair
PS repair
SORP submitted
MPS-PLE drafted (Nov.
2014 submittal)
WWTP Filter Repair (Dec.
2014)
WWTP Holding Lagoon
Management
CPE submitted (Feb. 2013)
CCP 60% drafted
• Drinking Water
– Emergency water
connections complete
– WTP repairs complete,
ongoing
– Two booster pump
stations under
construction
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Kudos
Town of Timmonsville, SC
CDM Smith
URS
EPA Region 4
SCDHEC
EDA
CDBG
USDA
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EXEMPLIFYING SHARED COMMITMENT TO THE
PEE DEE: A PROACTIVE SOLUTION BY THE CITY
OF FLORENCE AND TOWN OF TIMMONSVILLE
QUESTIONS ???
Josh Norton, PE
CDM Smith
Michael Hemingway
2014 NC AWWA/WEA 94TH ANNUAL FALL CONFERENCE,
WINSTON-SALEM, NC

Florence_Timmonsville Consent Decree NC

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