EPA`s Climate Resilience Evaluation and

EPA’s Climate Resilience
Evaluation and
Awareness Tool (CREAT):
A Case Study
South Monmouth Regional Sewerage Authority (SMRSA)
 Serves 9 Townships
 9.1 MGD Wastewater Treatment Plant
 11 pump stations
 11. 8 miles of Force main
Monmouth
County, New
Jersey
South
Monmouth
Regional
Sewerage
Authority
Are you ready for climate change?
SMRSA’s Cost of Rehabilitation After: Triplepundit.com
2009 Nor'easter:
$1.8 M
2011 Hurricane : $2.5 M
2012 Super Storm Sandy:
$11.5 M
Belmar, NJ after Super Storm Sandy
CREAT: Climate Resilience Evaluation and Awareness Tool Uses of CREAT:
 Developed specifically for water and wastewater utilities.  Identifies potential climate change threats a utility’s assets.
 Performs baseline assessment of the utility’s current resilience to these threats.  Designs strategies to build additional resiliency to projected climate changes.
 Helps utilities identify effective risk reduction strategies and associated capital costs.
Projected Climate Change Challenges
MIDWEST
 More extreme heat
 Extreme precipitation Flooding  Droughts
NORTHEAST
 Warmer days (Temperatures above 90⁰ F)

 Lower levels in rivers and Great Lakes
 Severe flooding due to  Sea level rise  Heavy rain events  Coastal Storm Surges
Source :
CREAT/EPA
Step 1: Asset Selection Two (2) Assets were selected for analysis in CREAT:
Belmar Pump Station – Located in flood zone; Received structural damage from Sandy
16” DIP Force Main‐ 6 ft above sea level; Erosion concerns from future storm surges
16” DIP Force Main
Belmar Pump Station
(EL 15 ft)
Step 2: Climate-related
Threat Identification
CREAT identified three major threats to Belmar Pump Station and force main system:
 Beach erosion impact on station’s force main
 Coastal storm surges
 Intense & frequent storm events Asset‐Threat Pairs
• The assets and threats are linked into pairs.
• All CREAT identified threats are not applicable to every asset.
Risk Assessment Evaluation
•Each asset‐threat pair was analyzed for 2 future climate scenarios (using CREAT provided data):
•Each asset‐threat pair was analyzed for 2 time periods:
Mid‐ century (2021‐2050), represented by the year 2035
Late century (2046‐2075), represented by the year 2060
Increasing Precipitation
Hot and Dry Warm and Wet
Selected scenarios
Increasing Temperature
Multiple scenarios ( )within the distribution of climate model projections ( ) for a given location. Step 3: Baseline: Existing Adaptive Measures
 Current protective measures taken at Belmar Pump Station: • Follow Emergency Response Plan for Flooding
Updated every 2 years
• Construct temporary flood barriers
Use of sand bags
Installation of plywood on doors and window • Initiate Wastewater Bypass Pumping System Direct wastewater flow to force main with the use of a portable pump
Step 3: Baseline: Existing Adaptive Measures
 Existing Protective Measures for Belmar PS Force Main:
 Currently, there are no measures in place to protect the force main against erosion.
Baseline Analysis
CREAT provided Climate Data
Baseline Analysis
• Analyze each previously identified threat‐asset pairs for all time periods and climate scenarios
Time Periods: Mid‐century, Late century
Climate scenarios: Hot & Dry, Wet & Warm
A total of 12 assessments were conducted in the case study
Step 4: Resilience Adaptive Measures‐
Belmar Pump Station Building
 Future actions SMRSA is considering to protect the pump station against climate related threats:  4 ft Flood Doors at the existing Belmar Pump Station (estimated cost $12,500)
 Relocate Belmar Pump Station outside of flood zone. (estimated cost $ 4.4 M)
 A mobile enclosure that protects critical pump station components. (estimated cost $ 1.9 M)
Pump Station Mobile Enclosure
Sea Girt Pump Station has a mobile enclosure that houses critical electrical and emergency power generation equipment that can be relocated to areas that are not flood prone before an impending storm.
Resilience Adaptive Measures: Belmar Force Main
 Future actions SMRSA is considering to protect the force main against climate related threats:  Sheet piles in the location of the existing force main to protect from erosion (estimated cost $3 Mil)
 Install new force main in a location further inland and out of the flood/erosion zone (estimated cost $6.6 Mil)
Resilience Analysis
Risk Reduction Calculation
 CREAT calculates risk reduction based on the difference between consequence levels between baseline conditions and resilience analyses.
 Output:  Risk Reduction Units (RRUs)
 Risk Reduction per adaptive measure
 Risk Reduction per dollar
 The adaptive measures can be selected to create a planning package that can be organized by risk reduction or cost.
Step 5: Adaptation Planning: Package #1 Most costly
Adaptive
Measures
Relocate
Belmar
Pump
Station
Relocate &
install new
force main
Capital
Cost
Annualized
Risk
Capital
Reduction
Cost**
Units
2035
Risk
Reduction
Units
2060
Total
RRUs
Annualized
$/RRU
$4,400,000
$295,749
46.8
57.8
104.5
$ 2,830
$6,600,000
$433,324
0
44.0
44.0
$10,082
Total Risk Reduction Units for Package 1: 148.5 RRUs
**Annualized Capital Cost is calculated over 20 years, with a 3% interest rate
Adaptation Planning: Package #2: Medium Cost
Adaptive
Measures
Mobile
enclosure
Relocate &
install new
force main
Risk
Reduction
Units
2060
Total
RRUs
Capital
Cost
Annualized
Capital Cost**
Risk
Reduction
Units
2035
$1,900,000
$127,710
46.8
57.8
104.5
$1,222.10
$6,600,000
$433,324
0
44.0
44.0
$10,082.36
Annualized
$/RRU
Total Risk Reduction Units for Package 2: 148.5 RRUs
**Annualized Capital Cost is calculated over 20 years, with a 3% interest rate
Adaptation Planning: Package #3: Least Costly Adaptive
Measures
Capital
Cost
Annualized
Capital
Cost**
Risk
Reduction
Units
2035
Risk
Reduction
Units
2060
Total
RRUs
Annualized
$/RRU
Flood doors
for existing
Belmar
pump
station
$12,500
$840
26.5
14.5
41.0
$20.49
Sheet piling
for existing
force main
$3,000,000
$201,647
0
11.0
11
$18,332
Total Risk Reduction Units for Package 3: 52 RRUs
**Annualized Capital Cost is calculated over 20 years, with a 3% interest rate
Risk Reduction Units by Adaptation Package
39
Package 1
$11 M
$11 M
Package 2
$8.5 M
$8.5 M
Package 3
$3.0 M
$3 M
Outcomes for SMSRA
 A CREAT generated report served as tool to communicate results to
stakeholders and the community.
 Software assisted SMRSA in a regional planning effort by assisting
the Authority in prioritizing their options.
 The pump station mobile enclosure strategy was the first ever
recipient of the Federal Emergency Management Agency (FEMA)’s
“Least Cost Alternative Project” award.
Thank You
Rina N. Dalal, rdalal@tandmassociates.com