waterfront substation - pepco...substation will exceed its firm capacity by 8% in the summer of...
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Waterfront Substation
July 8, 2015
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I Pepco Holdinqs Inc
Project Milestones
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I Pepco Holdings Inc
Waterfront
Substation
Impacted
/ Streets
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I Pepco Holdings Inc
Site for Waterfront Substation
Overhead view of property
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I Pepco Holdings Inc
Waterfront Substation 1st and Q Streets SW
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I Pepco Holdings Inc
Waterfront Substation 1st and R Streets SW
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I Pepco Holdinqs Inc
Waterfront Substation Project Schedule
Obtain Permits for Waterfront Site Preparation* April – August 2015
Prepare Waterfront Site for Construction June – October 2015
Award EPC Contract; Perform Detail Engineering July 2015 – July 2016
Obtain Building Permit January 2016
Construct Substation Building January 2016 – April 2017
Install Electrical Equipment August 2016 – April 2017
Initial Transfer of Electrical Load May – June 2017
* Multiple permits are needed and duration may extend beyond date shown
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I Pepco Holdinqs Inc
Permits Status
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I Pepco Holdinqs Inc
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Permit Matrix Permit/Notice Agency Demolition Substation
Construction
Transmission
Construction
1 Notice of Construction DC PSC NA Received Received
3 Underground Storage Tank
Activity Notification
DDOE Complete NA NA
4 Leaking Underground Storage
Tank Directive Letter
DDOE Received,
Pending Action
NA NA
Erosion and Sediment Control DDOE Pending Pending Pending
Permit Application Application Application
6 Storm Water Management Plan DDOE Pending Pending NA
Application Application
7 Asbestos Abatement Permit DDOE Complete NA NA
8 Building Permit Supplemental Form – Environ. Questionnaire
DDOE Pending
Application
Pending
Application
NA
9 Lead Abatement Permit DDOE Complete NA NA
10 Raze Application & Certification DCRA Application
Submitted
NA NA
11 Building Permit Application DCRA NA Pending
Application
NA
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I Pepco Holdinqs Inc
Permit Matrix Permit/Notice Agency Demolition Substation
Construction
Transmission
Construction
12 Environmental Intake Form DCRA NA Pending
Application
NA
13 Environmental Impact
Screening Form (EISF)
DCRA NA Pending
Application
Pending
Application
14 DC Green Building Act
Permit Application Intake Form
DCRA NA Pending
Application
NA
15 Zoning Approval BZA NA Complete NA
16 Certificate of Occupancy DCRA NA Pending
Application
NA
17 DC Well Construction Permit DCRA/
DDOE
Complete NA Complete
18 Public Space / ROW Permit DDOT Pending
Application
Pending
Application
Pending
Application
19 Traffic Control Permit DDOT Pending
Application
Pending
Application
Pending
Application
20 Occupancy Permit DDOT NA NA Pending
Application
21 Steel Plate Permit DDOT NA NA Pending
Application
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I Pepco Holdinqs Inc
Demolition and Mitigation Measures
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I Pepco Holdings Inc
Demolition Schedule
Applied for Raze permits for the 3
existing buildings.
Raze process should take 6 weeks
to complete- likely start in July 2015.
Raze the buildings, place four inches
of topsoil and seed the entire site.
AECOM is environmental lead for
HazMat Assessment and Abatement.
McCormick & Taylor is the third-party
environmental monitor for Demo and
Construction.
Contractor will monitor the
surrounding roadways for tracked
soil and will utilize street sweepers
when needed.
Site Controls: silt fencing, hay bales,
gravel construction entrance,
stormwater inlet protection and
mister for dust control.
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I Pepco Holdings Inc
Construction & Mitigation Measures
Limit noise-sensitive
construction activities during
daytime as per DC Noise
ordinance.
Notify community in advance of
any excessive noise activities
Shut down idling construction
equipment.
Stabilized construction entrance
on 2nd St., SW.
No permanent street/lane
closures anticipated during
construction.
Crews will utilize DDOT
approved traffic control plans.
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Asbestos and Lead Removal
Asbestos and lead abatement
completed in June 2015 in
accordance with DC Regulations.
Abatement conducted under
negative pressure conditions with
sealed doors utilizing proper worker
protection (HEPA filters).
Monitored the air to ensure no
workers were exposed and no
particles become airborne off site.
Submitted air monitoring report to
DDOE to ensure compliance.
Lead paint collected and disposed
to an off site to licensed facility.
Temporary EPA ID # was acquired
to dispose of hazardous material.
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Environmental Assessments Soil Sampling Locations
Substation Site
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I Pepco Holdings Inc
Waterfront Environmental Impact: Soil Sampling Results
38 Substances Tested at 12 Locations (4 Foot Depth)
34 Not Detected
Benzene
Ethylbenzene
Toluene
Diesel Range Organics
PCBs - Non-aqueous
Mercury
Arsenic
Cadmium
Chromium
4 Detected
Selenium
Silver
1,4-Dichlorobenzene
2,4-Dinitrotoluene
Hexachlorobenzene
Hexachlorobutadiene
Hexachloroethane
2-Methylphenol
3- & 4- Methylphenol
Nitrobenzene
Pentachlorophenol
Pyridine
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
Benzene
Carbon Tetrachloride
Chlorobenzene
Chloroform
1,2-Dichloroethane
1,1-Dichloroethene
Methyl Ethyl Ketone
Tetrachloroethene
Trichloroethene
Vinyl Chloride
Organic Halides
Xylenes Gasoline Range Barium Lead
(504 mg/kg)** Organics (814 mg/kg)** (100 mg/l)** (5 mg/l)**
0.018 mg/kg (1
location) 2.40 mg/kg average 0.91 mg/l average 0.21 mg/l average
(DC Action Level Standards in parenthesis)**
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I Pepco Holdings Inc
Waterfront Environmental Impact: Soil Sampling Results
38 Substances Tested at 12 Locations (8 Foot Depth)
36 Not Detected
Benzene Selenium 3- & 4- Methylphenol Chlorobenzene
Ethylbenzene Silver Nitrobenzene Chloroform
Toluene 1,4-Dichlorobenzene Pentachlorophenol 1,2-Dichloroethane
Diesel Range Organics 2,4-Dinitrotoluene Pyridine 1,1-Dichloroethene
PCBs - Non-aqueous Hexachlorobenzene 2,4,5-Trichlorophenol Methyl Ethyl Ketone
Mercury Hexachlorobutadiene 2,4,6-Trichlorophenol Tetrachloroethene
Arsenic Hexachloroethane Benzene Trichloroethene
Cadmium 2-Methylphenol Carbon Tetrachloride Vinyl Chloride
Chromium Xylenes
Gasoline Range
Organics Organic Halides
2 Detected
Barium Lead
(100 mg/l)** (5 mg/l)**
1.22 mg/kg average 0.24 mg/l (1 location)
(DC Action Level Standards in parenthesis)**
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I Pepco Holdings Inc
DDOE Directive Letter – Leaking Underground Storage Tank (LUST)
Underground Storage Tanks were
removed without going through
proper Underground Storage Tank
Closure process with DDOE.
To remove the soil, requested
Erosion and Sediment Control
permits from DDOE.
LUST case was opened by
DDOE.
Soil with petroleum residue is
being removed and disposed of at
an authorized facility by AECOM.
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I Pepco Holdinqs Inc
Appendix
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undefined: undefined_2: undefined_3: j 1 1 l: undefined_4: LOT 809 USQ H: r: Benzene: Selenium: Chlorobenzene: Ethylbenzene: Silver: Nitrobenzene: Chloroform: Toluene: Pyridine: Mercury: Arsenic: Benzene_2: Trichloroethene: Cadmium: Vinyl Chloride: 2MethylphenolChromium: Carbon TetrachlorideChromium: Organic Halides: Benzene_3: Selenium_2: Chlorobenzene_2: Ethylbenzene_2: Silver_2: Nitrobenzene_2: Chloroform_2: Toluene_2: Pyridine_2: Mercury_2: Arsenic_2: Benzene_4: Trichloroethene_2: Cadmium_2: 2Methylphenol: Vinyl Chloride_2: Chromium: Xylenes: Gasoline Range Organics: Organic Halides_2:
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