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, 2017 Calvert County Public Library Prince Frederick Branch 850 Costley Way Prince Frederick, MD 20678

Department of the Environment Informational Meeting on the Application to Renew a Permit to Discharge for Dominion Cove Point LNG (APPLICATION # 17-DP-2642; NPDES # MD0063975) Wednesday, May 17, 2017 – 6:00 to 8:00 PM Calvert County Public Library Prince Frederick Branch 850 Costley Way Prince Frederick, MD 20678

Permitting Process Receive Application Publish Notice of Application Hold Information Meeting (if Requested) Develop Limits and Draft Permit Publish Notice for Public Comment Hold Public Hearing (if Requested) Public Comments received NO Substantive Comments Substantive Comments Received Final Determination Published Permit Issued Permit Issued Judicial Review (if Requested)

Questions?

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

Location Map Library Chesapeake Bay Dominion Cove LNG Patuxent River

Renewal Application For Dominion Cove State Discharge Application No. 17-DP-2642; NPDES No. MD0063975 : Dominion Cove has submitted an application for renewal of a permit to: • discharge an annual average of 45,000 gallons per day • Of vaporization wastewater and variable amounts of stormwater. • to an unnamed tributary of Grays Creek (Use I water).

Existing Permit For Dominion Cove The existing permit (No. 07-DP-2642) is an authorization: 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.

Site Map Chesapeake Bay Dominion Cove LNG

Existing Permit: Outfall 001 Limits • Discharge: an annual average of 45,000 gpd of wastewater from submerged combustion vaporizers. • Monitored at a sample tap in just downstream of the treatment unit. Outfall 001 is the outlet from the SWM pond.

Existing Permit: Outfall 001 Limits Continued

Existing Permit: Outfall 002 § 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 • SC O – Obtain a GP for the discharge of water from hydrostatic testing of pipes and tanks • SC P – Compliance schedule for metals • SC Q – Nutrient reduction goals • Submit a Nutrient Reduction Report annually • SC R – SWPPP

Next Steps for Renewal Permit 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

Next Steps Continued 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

D OMINION E NERGY C OVE P OINT ’ S P RESENTATION 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, 2017 Calvert County Public Library Prince Frederick Branch 850 Costley Way Prince Frederick, MD 20678

Dominion Energy Cove Point NPDES Permit No. MD0063975 Maryland Department of the Environment Informational Hearing May 17, 2017 1 May 17, 2017

Informational Meeting Purpose q Dominion 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 2 May 17, 2017

Water Flows MD0063975 Application Initial Water Source: LNG Vaporization (water generated as Groundwater a combustion product) Compliance monitoring point Treatment: Treatment: (Outfall 001) To Tributary of Aeration pH adjustment Grays Creek Storm water General Permit Flushing and Integrity Testing of 11HT-9479B Tanks, Piping or Other Equipment Lake Hydrostatic Tests for LNG Levy Storage Tanks 3 May 17, 2017

Process Water Generation Outfall 001, Process Water q 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. Natural Gas q Treatment Solar q Aeration Wind q pH adjustment: Chemical addition to maintain Nuclear permit limitations q Monitored Parameters q pH q Temperature q Nitrogen constituents: Ammonia, TKN, Nitrate- Nitrate, Total Nitrogen, Total Inorganic Nitrogen 4 May 17, 2017

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. 5 May 17, 2017

Important Considerations for Reissued Permit • No increase in process wastewater discharge flows from that specified in the current permit. 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 6 May 17, 2017

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. 7 May 17, 2017

Our company is built on a proud legacy of public service, innovation and community involvement. 8 May 17, 2017