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600 LORING AVENUE - DEP PIN RNF RECEIVED ENVIRONMEN C O N E C O OCT 0 S 2024 S11 „F Engineers & Scientists IVIL September 24,2024 CITY OF SALEM Coneco Project No. 12519.002 BOARD OF HEALTH Sara Moore,Chairperson, Board of Health 98 Washington Street 3'Floor Salem,Massachusetts 01970 RE: Public Involvement Notification Release Notification Form Non-PCB Mineral Oil Dielectric Fluid Release Pad-Mounted Electrical Transformer 600 Loring Avenue Salem,Massachusetts Release Tracking Number 3-50554 Dear Ms.Moore: Pursuant to 310 CMR 40.1403(3)(h)of the Massachusetts Contingency Plan(MCP),the following serves as written notification of the submittal of a Release Notification Form (BWSC- 103)(RNF)to the Massachusetts Department of Environmental Protection(MassDEP) on or about September 24,2024. This submittal is regarding a historical release of non-polychlorinated biphenyl(non-PCB)mineral oil dielectric fluid(MODF)that occurred from a pad-mounted electrical transformer formerly located at 600 Loring Avenue in Salem,Massachusetts. The MassDEP was verbally notified on July 26,2024,and Release Tracking Number(RTN) 3-50554 to this release. A copy of the RNF is included with this notice. Additional Public Involvement Activities may be requested under 310 CMR 40.1403(9). Information related to this Disposal Site is also available in files at the MassDEP and online at https://eeaonline.cea.state.ma.us/portal#!/wastesite/3- 0050554. For more information about the public involvement regulations that require this notice and a description of such public involvement activities available under the MCP,see https://www.mass.gov/lists/waste-site-cleanup-laws-and-regulations. This submittal is being made on behalf of Massachusetts Electric Company(MECO),the party conducting response actions regarding this release. If you would like additional information regarding this notice,you may contact the undersigned. Sincerely, Coneco Engineers& Scientists,Incorporated WWI Jim, I C�� Nicholas R.Holtgrefe Brian F. Klingler,PG,LSP Project Manager Principal Geologist RAF:NRH:BFK;jw U:\\12519.002_Municipal Notice—RNF Enclosures: Copy of Release Notification Form(BWSC-103) cc: MECO MassDEP 4 First Street, Bridgewater,MA 02324 (508)697-3191 (800)548-3355 Coneco.com Massachusetts Department of Environmental Protection BWSC 103 Bureau of Waste Site Cleanup ` RELEASE NOTIFICATION&NOTIFICATION Release Tracking Number RETRACTION FORM - 50554 Pursuant to 310 CMR 40.0310,310 CMR 40.0335,and 310 CMR 40.0371(Subpart C) A.RELEASE OR THREAT OF RELEASE LOCATION: 1.Release Name/Location Aid: NATIONAL GRID SUBSTATION 2. Street Address: 600 LORING AVENUE 3.City/Town: SALEM 4.ZIP Code: 019700000 5.Coordinates: a.Latitude:N 42.48602 b.Longitude:W 70.90259 B. THIS FORM IS BEING USED TO: (check one) 1.Submit a Release Notification r 2.Submit a Revised Release Notification r 3.Submit a Retraction of a Previously Reported Notification of a release or threat of release including supporting documentation required pursuant to 310 CMR 40.0335(Section C is not required) (All sections of this transmittal form must be filled out unless otherwise noted above) C.INFORM4otal D"eCRIBING THE RELEASE OR THREAT OF RELEASE(TOR): 1.Date and tim n, flicable: 7/26/2024 Time: 02:26 r AM W PM a TOR: mm/dd/yyyy hh:mm 2.Date and time you obtained knu f Rele wleui o 7/23/2024 Time: 03:00 r AM R PM mm/dd/yyyy hh:mm 3.Date and time release or TOR occurred,if known: Time: r AM r PM /dd/yyyy hh:nun Check all Notification Thresholds that apply to the Release or'C 'lease (for more information see 310 CMR 40.0310-40.0315) 4.2 HOUR REPORTING CONDITIONS 5.72 HOUR REPORTING CONDIT. NSjotAY REPORTING CONDITIONS r a.Sudden Release F a. Subsurface Non-Aqueous Phase a.Release of Hazardous Material(s)to Liquid(NAPL)Equal to or Greater than Soil or Groundwater Exceeding 1/2 Inch(.04 feet) Reportable Concentration(s) r b.Threat of Sudden Release r b.Underground Storage Tank(UST) r b.Release of Oil to Soil Exceeding Release Reportable Concentration(s)and Affecting More than 2 Cubic Yards r c.Oil Sheen on Surface Water c.Threat of UST Release r c.Release of Oil to Groundwater Exceeding Reportable Concentration(s) r d.Poses Imminent Hazard r d.Release to Groundwater near Water r d. Subsurface Non-Aqueous Phase Supply Liquid(NAPL)Equal to or Greater than 1/8 Inch(.01 feet)and Less than 1/2 Inch (.04 feet) r e.Could Pose Imminent Hazard r e.Substantial Release Migration r f.Release Detected in Private Well r g.Release to Storm Drain r h.Sanitary Sewer Release (Imminent Hazard Only) Revised: 3/1/2024 Pagel of 3 Massachusetts Department of Environmental Protection BWSC 103 Bureau of Waste Site Cleanup RELEASE NOTIFICATION&NOTIFICATION Release Tracking Number RETRACTION FORM - 50554 Pursuant to 310 CMR 40.0310,310 CMR 40.0335,and 310 CMR 40.0371(Subpart C) C.INFORMATION DESCRIBING THE RELEASE OR THREAT OF RELEASE (TOR): (cont.) 7.List below the Oils(0)or Hazardous Materials(HM)that exceed their Reportable Concentration(RC)or Reportable Quantity(RQ)by the greatest amount. r Check here if an amount or concentration is unknown or less than detectable. O or HM Released CAS Number, O or HM Amount or Units RCs Exceeded,if Applicable if known Concentration (RCS-1,RCS-2,RCGW-1, RCGW-2) NON-PCI3 MINERAL OIL DIELECTRIC FLUID O 6 NC i N/A r Check here if a list of additional Oil and Hazardous Materials subject to reporting,or any other documentation relating to this notification is attached. D.PERSON REQUIRED TO NOTIFY: 1.Check all that s „)I, r a.change in contact name r b.change of address F%O-c.change in the person notifying 2.Name of Organ._= MAP-°,CHUSETTS ELECTRIC COMPANY *I?- 3.Contact First Name: ROY7F 4.Last Name: NAZARI 5.Street: 170 MEDFORD STREET 6.Title: SENIOR ENVIRONMENTAL ENGINEER 7.City/Toam: MALDEN 8.Stat 9.ZIP Code: 021480000 10.Telephone: 781-697-1267 11.ExL: ROYANAZARI@NATIONALGRID.COM 13.Check here if attaching names and addresses of owners of properties affected by the ease or Threat of Release,other than an owner who is submitting this Release Notification(required). E.RELATIONSHIP OF PERSON TO RELEASE OR THREAT OF RELEASE: r Check here to change relationship RO 1.RP or PRP r a.Owner r b.Operator r c.Generator r d.Transporter r e.Other RP or PRP Specify: r 2.Fiduciary,Secured Lender or Municipality with Exempt Status(as defined by M.G.L.c.21E,s.2) r 3.Agency or Public Utility on a Right of Way(as defined by M.G.L.c.21E,s.50)) r 4.Any Other Person Otherwise Required to Notify Specify Relationship: Revised:3/1/2024 Page 2 of 3 LlMassachusetts Department of Environmental Protection BWSC 103 Bureau of Waste Site Cleanup RELEASE NOTIFICATION&NOTIFICATION Release Tracking Number RETRACTION FORM KI - 50554 Pursuant to 310 CMR 40.0310,310 CMR 40.0335,and 310 CMR 40.0371(Subpart C) F.CERTIFICATION OF PERSON REQUIRED TO NOTIFY: 1.I, ,attest under the pains and penalties of perjury(i)that I have personally examined and am familiar with the information contained in this submittal,including any and all documents accompanying this transmittal form,(ii)that,based on my inquiry of those individuals immediately responsible for obtaining the information,the material information contained in this submittal is,to the best of my knowledge and belief,true,accurate and complete,and(iii)that I am fully authorized to make this attestation on behalf of the entity legally responsible for this submittal.1/the person or entity on whose behalf this submittal is made am/is aware that there are significant penalties,including,but not limited to,possible fines and imprisonment,for willfully submitting false, inaccurate,or incomplete information. 2.By: 3.Title: SENIOR ENVIRONMENTAL ENGINEER Signature 4.For: MASSACHUSETTS ELECTRIC COMPANY 5.Date: (Name of person or entity recorded in Section D) mm/dd/yyyy 6.Check here if the address of the person providing certification is different from address recorded in Section D. 7.Street: 8.City/Town: 9.State: 10.ZIP Code: 11.Telephone: 12.Ext.: 13.Email: YOU ARE SUBJECT TO ANNUAL COMPLIANCE ASSURANCE FEES FOR EACH BILLABLE YEAR FOR TIER CLASSIFIED DISPOSAL SITES.YOU MUST LEGIBLY COMPLETE ALL RELEVANT SECTIONS OF THIS FORM EP MAY RETURN THE DOCUMENT AS INCOMPLETE.IF YOU SUBMIT AN INCOMPLETE FORM, YOU MAY BE PENALIZED FOR MUSSING A REQUIRED DEADLINE. Date Stamp(DEP USE ONL ., Revised:3/1/2024 Page 3 of 3 F Non-PCB Mineral Oil Dielectric Fluid Release Pad-Mounted Electrical Transformer 600 Loring Avenue Salem,Massachusetts 01970 Attachment to BWSC-103 -Release Notification Form SECTION D,Q.13: Names and addresses of owners of properties affected by the release other than PRP who is submitting the RNF. Affected Properties: 600 Loring Avenue Owner Information: Village Shops LLC CIO Centercorp Retail Prop, Inc. 600 Loring Avenue Salem,Massachusetts 01970