Permitting Process Receive Application Publish Notice of Application - - PowerPoint PPT Presentation
P RESENTATIONS FROM THE I NFORMATIONAL M EETING ON THE A PPLICATION FOR A RENEWAL OF A P ERMIT TO D ISCHARGE TO S URFACE W ATERS FOR D OMINION C OVE P OINT LNG (A PPLICATION # 17-DP-2642; NPDES # MD0063975) 6:00 to 8:00 PM, Wednesday, May 17,
FROM THE
INFORMATIONAL MEETING
ON THE
APPLICATION FOR A RENEWAL OF A PERMIT TO DISCHARGE TO SURFACE WATERS
FOR
DOMINION COVE POINT LNG (APPLICATION # 17-DP-2642; NPDES # MD0063975) 6:00 to 8:00 PM, Wednesday, May 17, 2017 Calvert County Public Library Prince Frederick Branch 850 Costley Way Prince Frederick, MD 20678
Application to Renew a Permit to Discharge for Dominion Cove Point LNG
(APPLICATION # 17-DP-2642; NPDES # MD0063975)
Department of the Environment
Wednesday, May 17, 2017 – 6:00 to 8:00 PM Calvert County Public Library Prince Frederick Branch 850 Costley Way Prince Frederick, MD 20678
Receive Application
Publish Notice of Application
Develop Limits and Draft Permit
Publish Notice for Public Comment
Public Comments received
Permit Issued
NO Substantive Comments Substantive Comments Received
Final Determination Published Judicial Review (if Requested)
Permitting Process
Hold Public Hearing (if Requested) Hold Information Meeting (if Requested)
Permit Issued
Our Contact Information
Michael Richardson, Chief Industrial & General Permits Division Wastewater Permits Program Water Management Administration Maryland Department of the Environment Email: michael.richardson@maryland.gov Voice: 410-537-3323 Fax: 410-537-3163 Marjorie Mewbourn, Project Manager Industrial & General Permits Division Wastewater Permits Program Water Management Administration Maryland Department of the Environment Email: marjorie.mewbourn@maryland.gov Voice: 410-537-3323 Fax: 410-537-3163
OVERVIEW OF THE EXISTING PERMIT AND RENEWAL APPLICATION
TO DISCHARGE TO SURFACE WATERS For
Dominion Cove Point LNG
APPLICATION # 17-DP-2642; NPDES # MD0063975
Presented By: Marjorie Mewbourn Wednesday May 17, 2017
Dominion Cove LNG
Chesapeake Bay Patuxent River
Library
State Discharge Application No. 17-DP-2642; NPDES No. MD0063975:
Dominion Cove has submitted an application for renewal of a permit to:
stormwater.
TO DISCHARGE FROM a LNG receiving terminal and regasification facility LOCATED AT 2100 Cove Point Road, Calvert County, Maryland VIA OUTFALLS 001 and 002 TO an unnamed tributary to Grays Creek and Cove Point Marsh (Use I) which are protected for water contact recreation, fishing, aquatic life and wildlife.
Dominion Cove LNG
Chesapeake Bay
Existing Permit: Outfall 001 Limits
vaporizers.
from the SWM pond.
Existing Permit: Outfall 001 Limits Continued
§Water from air separation units §Limits for pH, metals, oil and grease §This discharge is now sent to the sanitary sewer.
Existing Permit: Special Conditions
from hydrostatic testing of pipes and tanks
annually
q Review Information § From Application § From site visit § From Existing/Previous Permits § From other MDE divisions ü Check DMRs/Compliance history § From stakeholders q Resolve Questions Raised by Review
q Write draft permit q Publish Tentative Determination (TD) § Comment Period/Request for Public Hearing q http://mes- mde.mde.state.md.us/WastewaterPermit Portal
DOMINION ENERGY COVE POINT’S PRESENTATION
FROM THE
INFORMATIONAL MEETING
ON THE
APPLICATION FOR A RENEWAL OF A PERMIT TO DISCHARGE TO SURFACE WATERS
FOR
DOMINION COVE POINT LNG (APPLICATION # 17-DP-2642; NPDES # MD0063975) 6:00 to 8:00 PM, Wednesday, May 17, 2017 Calvert County Public Library Prince Frederick Branch 850 Costley Way Prince Frederick, MD 20678
May 17, 2017 1
qDominion Cove Point
q Individual NPDES permit, MD0063975 effective date January 1,
2013
q Submitted a reissuance application November 21, 2016. q Seeking to continue discharge authorization for one industrial
process water outfall, Outfall 001 and to maintain currently permitted stormwater provisions
Informational Meeting Purpose
May 17, 2017 2
Water Flows
May 17, 2017 3
LNG Vaporization (water generated as a combustion product) Treatment: pH adjustment To Tributary of Grays Creek Initial Water Source: Groundwater Treatment: Aeration Storm water
Compliance monitoring point (Outfall 001)
Flushing and Integrity Testing of Tanks, Piping or Other Equipment Hydrostatic Tests for LNG Storage Tanks Lake Levy
MD0063975 Application General Permit 11HT-9479B
Natural Gas Solar Wind Nuclear
Process Water Generation
May 17, 2017 4
q
Outfall 001, Process Water
q Submerged Compressor Vaporizers (SCVs):
Condensation and drainage from unit baths that heat the liquid natural gas. The pH adjustment to control bath water conditions.
q Treatment
q Aeration q pH adjustment: Chemical addition to maintain
permit limitations
q Monitored Parameters
q pH q Temperature q Nitrogen constituents: Ammonia, TKN, Nitrate-
Nitrate, Total Nitrogen, Total Inorganic Nitrogen
Important Considerations for Reissued Permit
q Since 2012 NPDES permit:
q Eliminated one process water discharge, Outfall 002 (Air Separation Units) q Condensate water is collected and discharged to the local sewer system q Upgraded wastewater treatment process for Outfall 001 q Improved control of treatment mechanisms, like chemical addition q Allows for increased monitoring of pH and temperature q Includes interlock system to ensure pH and temperature are within acceptable
ranges prior to discharge
q Liquefaction project will not contribute wastewater to the discharge
authorized by this permit; the project design is Zero Liquid Discharge.
May 17, 2017 5
Important Considerations for Reissued Permit
the current permit.
May 17, 2017 6
Flow Type Flow Rate Daily Average 45,000 gpd Design Maximum 144,000 gpd*
*10 vaporizers x 10 gpm/ vaporizer x 24 hr/d x 60 min/hr = 144,000 gpd
Summary of Changes: Previous vs. Current Application
q Same annual average flow for the SCV process q Same characteristics of wastewater q Same treatment type for Outfall 001 q Reduction in number of process wastewaters
q Removal of process wastewater from Air Separation Units (former Outfall
002); <10,000 gpd average
q Liquefaction project will not contribute wastewater to the discharge
authorized by this permit; the project design is Zero Liquid Discharge.
May 17, 2017 7
May 17, 2017 8