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HomeMy WebLinkAboutNC0089702_worksheets_20181108f Corporon Joe's Permitting LOG: 89702 Terwilliger Pappas - Solis Brightleaf; GW-REM [multiple contaminate contributors include heating -oil UST release, Howerton Bryan Funeral Home, and dry-cleaner wastes] - Chlorinated Solvents, metals, chloride and TSS are present in groundwater. note: ammonia present in wastewater. [See 27Mar2018 - "new data" — return of APP] 04Jan2018 -- Joe received assignment from John Hennessy (priority: urgent, mis-assigned since last summer, APP received 01Jun2017). 05Jan2018 -- reviewed file; applicant proposes to develop several parcels into a 1.45-acre apartment complex w/subterranean parking; excavation dewatering proposes to discharge to stormdrain under zero -flow receiving -stream conditions (7Q10/30Q2 = 0.0 cfs); Design flow: 3 discharges per day, each 30-minute @ 300gpm = 27000 gpd, 7 days/week [treated via bag filter and two (2) activated liquid -phase carbon canisters]. Proposed two -deck parking structure will require permanent dewatering facility in building subgrade - recommend phased permit to accommodate. 22Jan2018 -- completed DRAFT docs; consulted w/ John Hennessy about sampling frequency; 23Jan2017 -- updated Public Notice System; entered effluent parameters in BIMS (half); emailed draft docs to list; submitted draft to Wren for Public Notice on 24Jan2018; final due to John Hennessy on 07Mar2018. 06Feb2018 -- Dan Neil (Mid -Atlantic Consultants) called to ask about responding to the draft; limits and monitoring petition; has more analytical data (untreated); will email comments, data attached. construction in progress; will install permanent system (after pluming and power) under a stairwell. Currently discharging under permit to City of Durham. Agreed on flow limit of 1,500 gpd. 06Feb2018 -- received Affidavit of Publication on 30Jan2018. 23Feb2018 -- received (email) Permittee's written comments on DRAFT permit; copied RRO (Danny Smith / Vanessa Manual). 27Mar2018 -- discussed new data w/ Terresa Rodriguez (NPDES) noting significant oxygen - consuming wastes not previously reported. This renders the discharge "new" as defined "forbidden" under existing rule. Joe drafted a denial letter, to be discussed w/ John. 30Mar2018 -- drafted "Return of Application" letter; discussed w/ John. John said 02 -wastes under zero -flow Rule may be reason for calculating limits/applying standard, but may not be sufficient reason to deny the permit (Directors decision). John to discuss w/ Jeff. Joe to leave the file on John's desk for further review; done. 12Apr2018 -- John returned letter w/ minor edits; all agree that the proposed discharge is "disallowed" by Rule. joe to finalize for signature; 13Apr2017 -- submitted fmal Return of APP letter to John, dated 13Apr2018 18May2018 -- Consultant emailed called to say ammonia is likely an additive to the tons of foundation concrete; ask if they could treat 02-consuming before discharge. Joe to discuss with the Team. 08Jun2018 -- Joe met w/ John and Sergei to discuss options; Sergei noted BOD @ 7 mg/L early in the pump-n-treat process suggesting that ammonia may come from brownfields activities - not just concrete. We concluded that DWR should consult the Legal team about the Rule; consider any possible Director's discretion long term. In the meantime, pump-n-treat should continue. Joe called Drew Hargrove (DWR Council) and left message. 19Jun2018 -- Tyrone Gerald Battle (@WWTP) [gerald.battle@durham.nc.gov] called to say the applicant has applied to extend their pump-n-haul permit for 2 more years. we discussed the surface discharge scenario. Joe drafted an email back; submitted copy to John Hennessy for review before sending. 26Jun2018 -- Tyrone Battle (DWWTP) told Dan Nielson (consultant) this morning that Durham will extend the temporary permit for discharge into the POTW. He said he would deliver the modified permit either Thursday or next Monday [02Ju12018]. Nielson would like DWR to schedule a sit-down for all concerned to discuss moving forward. 29Jun2018 -- meeting at the Archdale: John to discuss issuance with Jeff, internal appointment pending; Tyrone Battle (DWWTP) will extend the temp discharge permit for two (2) years to allow applicant to establish treatment system and report effluent database RE 02-consuming wastes. 06Ju12018 -- joe generated draft email suggesting a sampling plan over July, August, and September (minimum 12 samples for BOD, TKN and Ammonia); Joe submitted draft to john for review before emailing. Joe and John met with Jeff to discuss proposed plan - all agree. Sent email. Permittee agrees. 240ct2018 -- received sampling test results from Permittee for July, August, and September. 260ct2018 -- set Calendar date w/ John Hennessy to review data, 310ct / 09:30 / Joe's office. 310ct2018 -- John concurred that new effluent data substantiates effluent compliance with the permit; Joe to imitate permit final; 06Nov2018 -- generated final docs and Fact sheet Addendum to include plan and results; Dan Nielson emailed asking for "progress." 08Nov2018 -- updated BIMS Events and Limits; submitted file to John Hennessy for signature, letter dated 09Nov2018. John returned file signed; scanned final w/ signatures; emailed permit to consultant Dan Nielsen (Mid Atlantic); Joe submitted file to Charles weaver for issuance. --DONE. Corporon, Joe From: Meadows, Susan Sent: Tuesday, November 06, 2018 11:15 AM To: Corporon, Joe Subject: RE: Permanent Groundwater Dewatering System Hey Joe, Yes, since they have volatiles, I think this looks fine. Thanks. Susie Susan Meadows Environmental Specialist Aquatic Toxicology Branch DWR/Water Sciences Section Department of Environmental Quality tel: (919) 743-8439 fax: (919) 743-8517 Susan's Email: susan.meadowsPncdenr.gov Email AT Forms to Susan at: ATForms.ATB@ncdenr.gov Or send in the mail to: AT Forms c/o Susan Meadows (ATB) 1621 MSC Raleigh, NC 27607 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Corporon, Joe Sent: Friday, November 02, 2018 9:31 AM To: Meadows, Susan <susan.meadows@ncdenr.gov> Cc: Hennessy, John <john.hennessy@ncdenr.gov> Subject: Permanent Groundwater Dewatering System Hey Ms. Susie — sending you a tox page with modified language — Left you a phone message. I'll call you again to discuss. This is a TGE6C with language modified temporarily to monitor "Monthly" for a groundwater remediation start-up period. This is similar to the draft permit sent to Public Notice. Eventually after sufficient data, we will modify to "Quarterly." However, the Permittee has hard "occupancy" deadlines and is anxious not to accommodate another permitting delay. If I were to relax monitoring to "Quarterly" now, it would be "less stringent" than the draft, requiring another Public Notice period. Hope the attached works for you. 1 More later. Thanks. Joe R. Corporon, P.G. 919-707-3617 NCDEQ/DWR/NPDES Permitting Archdale Building, 925C 1617 Mail Service Center Raleigh, North Carolina 27699 2 1ATA (A) al00-7 ?�-enMou 1 S %5?)6/4 ar TABLE 1 SUMMARY OF VOCs DETECTED IN TREATMENT SYSTEM EFFLUENT FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 Sample ID Sample Date VOCs by EPA Method 624.1 Effluent 7/31/2018 No VOCs detected above laboratory method detection limits Effluent 8/28/2018 No VOCs detected above laboratory method detection limits Effluent 9/27/2018 No VOCs detected above laboratory method detection limits Notes: Permanent water treatment system was installed on July 27, 2018. Effluent samples are collected downstream of treatment system TABLE 2 SUMMARY OF SVOCs DETECTED IN TREATMENT SYSTEM EFFLUENT FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 Sample ID Sample Date SVOCs by EPA Method 625.1 Benzo(a)anthracene Crysene Effluent 7/31/2018 ND ND Effluent 8/28/2018 ND ND Effluent 9/27/2018 0.97 J 0.99 J Notes: Permanent water treatment All concentrations in micrograms per liter (ug/L) ND = Not detected at or above laboratory method detection limits J = Estimated concentration is above the method detecion limit but below the reporting limit TABLE 3 SUMMARY OF ADDITIONAL PARAMTERS ANALYZED FOR IN TREATMENT SYSTEM EFFLUENT FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 Parameter Sample Sample Flow (MGD) Total Chloride (mg/L) Total Arsenic (ug/L) Chromium VI (ug/L) Total Chromium (ug/L) Total Copper (ug/L) Total Lead (ug/L) Total Selenium (ug/L) Total Zinc (ug/L) Total Nickel (ug/L) Total Fluoride (mg/L) Total Hardness (ug/L) Total Mercury (ug/L) BOD (mg/L) TKN (mg/L) WET -Acute ID Date fl E H uJ NPDES Proposed 0.00005 6.0 - 9.0 NL 3.3 230 340 16 180 3.6 14 5 36 140 1.8 100,000 0.012 NI. NL NL Limit Effluent 7/31/2018 0.0014 6.95 ND ND 75.3 ND ND* ND ND ND ND 44.4 ND 0.11 ND 0.00532** ND ND Pass Effluent 8/28/2018 0.0018 7.36 ND ND 38.6 ND ND ND ND ND ND 17.7 5.3 0.097J 168,000 0.00703 ND ND Pass Effluent 9/27/2018 0.0019 6.55 ND ND 62.3 ND ND ND ND ND ND 3.3J 2.8J 0.079J 151,000 0.00275 ND ND Pass^ Notes: MGD - Million Gallons per Day * - Sample collected 8/7/18 due to laboratory error mg/L- milligrams per liter ** -Sample collected 8/13/18 due to sampling error ug/L - micrograms per liter ^ - Sample collected 10/2/18 due to laboratory error TSS -Total Suspended Solids J = Estimated concentration is above the method detecion limit and below the reporting limit PCE - Tetrachloroethylene NL = No limit proposed in draft NPDES permit BOD - Biochemical Oxygen Demand All Proposed limits match units of analytical results TKN - Total Kjeldahl Nitrogen WET - Wet Effluent Toxicity (pass/fail) TABLE 4. TKN, AMMONIA and BOD ANALYTICAL RESULTS FORMER HOWERTON BYRAN FUNERAL HOME DURHAM, NORTH CAROLINA . MID -ATLANTIC PROJECT NO.: R2807.01 Sample ID Sample Date . PARAMETER a TKN Ammonia BOD Flow Rate Value Qualifier Influent 7/31/2018 42 0.16 14.4 B2, D6 3,600 8/7/2018 0.381 M1 0.0971 2.1 B3 2,943 8/13/2018 ND M1 ND ND B2, B3, L1 2,633 8/17/2018 0.281 ND 28.0 B2, D6 1,275 8/22/2018 0.25 J 0.0641 9.6 B2, B3, D6 2,420 8/28/2018 ND 0.11 2.4 B3, L1 1,383 9/5/2018 ND ND ND B2, L2 1,075 9/11/2018 0.261 0.077 J 35.4 B2 1,221 9/17/2018 ND 0.11 7.5 B2, B3 2,867 9/21/2018 0.405E 0.08J ND B1,1- 1,825 9/27/2018 ND M1 ND 21.9 B2, l2 1,550 10/2/2018 ND ND 41.1 B3, L2 1,060 Effluent 7/31/2018 ND ND ND B2 3,600 8/7/2018 ND ND 2.7 B3 2,943 8/13/2018 ND ND ND B2, B3, L1 2,633 8/17/2018 ND ND ND -- 1,275 8/22/2018 ND ND 2.8 B3 2,420 8/28/2018 ND ND ND B2, B3, L1 1,383 9/5/2018 ND ND ND B2, L2 1,075 9/11/2018 ND ND ND 82 1,221 9/17/2018 ND ND ND B2, B3 2,867 9/21/2018 0.175 B,J ND ND B1, J- 1,825 9/27/2018 ND ND ND B2, L2 1,550 10/2/2018 ND ND 4.3 83, L2 1,060 Notes: Influent samples collected from sample port pre-treatment system Effluent samples collected from sample port post -treatment system All concentrations in milligrams per liter (mg/L) B = The same analyte is found in the associated blank B1= The blank depletion was greater than the recommended maximum depletion of 0.2 mg/L B2 = Oxygen usage is less than 2.0 for all dilutions set. The reported value is an estimated less than value and is calculated for the dilution using the most amount of sample B3 - The dissolved oxygen depletion of the dilution water blank exceeded 0.2 mg/L D6 - The precision between the sample and sample duplicate exceeded laboratory control limits M1 - Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery L1 - Analyte recovery in the LCS was above QC limits. Results for this analyte in associated samples may be biased high L2 - Analytie recovery in the LCS was below QC limits. Results for this analyte in associated samples may be biased low BOD - Biochemical Oxygen Demand TKN - Total Kjeldahl Nitrogen Flow Rate - Average gallons per day ND - Not detected at or above laboratory method detection limits J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit 1- = The associated batch QC was outside the lower control limits; associated data has a potential negative bias 7/18/2018 Printable Three Month Planner for July, August and September 2018 - ePrintableCalendars.com July 2018 Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 August 2018 Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 September 2018 Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Sampling will include Treatment System: 1. Influent: BOD, ammonia, TKN 2 Effluent: BOD, ammonia, TKN, flow, pH, TSS, VOCs (method 624 including PCE), total chloride, total arsenic, total cadmium, chromium VI, total chromium, total copper, total lead, total selenium, total zinc, total nickel, total fluoride, total hardness, total hardness, total mercury, sVOCs (method 625 including base neutrals and acids), and Whole Effluent Toxicity -Acute (WET) Sampling will include Treatment System: 1. Influent BOD, ammonia, TKN 2 Effluent: BOD, ammonia, TKN SAM )/,—(ic66-- http://eprintablecalendars.com/three-month-planners/July-August-September-2018/ 1/1 Corporon, Joe From: Corporon, Joe Sent: Tuesday, June 05, 2018 11:33 AM To: 'Dan Nielsen' Subject: RE: [External] RE: Comments on Draft NPDES NC0089702 - Proposed Solis Brightleaf, Durham County Dan - we are struggling with schedules and permitting questions. I have proposed an internal meeting with technical staff for tomorrow afternoon. I hope to have clear answers and guidance after that. Thanks for your continued patience. Respectfully, Joe R. Corporon, L.G. 919-807-6394 NCDEQ/DWR/NPDES Permitting Archdale Building, 925C 1617 Mail Service Center Raleigh, North Carolina 27699 From: Dan Nielsen [mailto:dnielsen@maaonline.com] Sent: Thursday, May 31, 2018 4:03 PM To: Corporon, Joe <joe.corporon@ncdenr.gov> Subject: [External] RE: Comments on Draft NPDES NC0089702 - Proposed Solis Brightleaf, Durham County CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to 5-31-2018 Second Update Joe, we spoke on the phone the week before last and you said you had to check with others for the answer. I called last week and left a message but have not heard back. So I am asking once again: Is it accurate to say that if we can treat to eliminate BOD we can discharge? Dan 5-10-2018 Update Can you answer the question asked last week: Is it accurate to say that if we can treat to eliminate BOD we can discharge? Thanks, Dan 1 Joe, This denial has obviously caused a stir. We are trying to sort through the source of the ammonia which we believe to be the root cause of the BOD. The BOD arrived about the same time as the approach for dewatering changed from dewatering wells to the permanent drainage system located under the building being constructed. It also coincides with the placement of tons of concrete. We have looked into the additives to the concrete and it appears that they could be the source. One of the comments in the SDS states that the additive has a faint `ammonia like odor'. We continue to monitor groundwater quality to try and gauge if this is a transient condition or a permanent one. If it turns out to be a permanent condition we will need to treat the water to remove the ammonia and eliminate the BOD. Is it accurate to say that if we can treat to eliminate BOD we can discharge? Dan Daniel H. Nielsen, PE, RSM, LEED-AP Vice -President, Principal Engineer MID -ATLANTIC ASSOCIATES, INC. 409 Rogers View Court I Raleigh, NC 276I0 919-250-9918 1919-250-9950 (Facsimile) 1919-614-3988 (Mobile) www.MAAONLINE.com I Outstanding Service Since 1993 Confidentiality Notice: The information contained in this e-mail is intended only for the individual or entity to whom it is addressed.lts contents (including any attachments) may contain confidential and/or privileged information. If you are not an intended recipient you must not use, disclose, disseminate, copy or print its contents. If you receive this e-mail in error, please notify the sender by reply e-mail and delete and destroy the message. From: Corporon, Joe [mailto:joe.corporon@ncdenr.gov] Sent: Friday, April 13, 2018 3:45 PM To: Dan Nielsen <dnielsen@maaonline.com> Cc: Smith, Danny <danny.smith@ncdenr.gpv>; Meadows, Susan <susan.meadows@ncdenr.gov>; Kinney, Maureen <Maureen.Kinney@ncdenr.gov> Subject: RE: Comments on Draft NPDES NC0089702 - Proposed Solis Brightleaf, Durham County Dan - I regret to inform you we have encountered a significant problem with your application (see attached letter; hardcopy to follow by mail). Respectfully, Joe R. Corporon, L.G. 919-807-6394 NCDEQ/DWR/NPDES Permitting Archdale Building, 925C 1617 Mail Service Center Raleigh, North Carolina 27699 From: Dan Nielsen f mailto:dnielsen@maaonline.com] Sent: Thursday, April 12, 2018 4:51 PM 2 ' To: Corporon, Joe <joe.corporon@ncdenr.gov> • Cc: Reina Clark <Rclark@maaonline.com> Subject: RE: [External] Comments Draft NPDES NC0089702 Solis Brightleaf CAUTION: Hey Joe, Any word on how our comments on this permit were received? Than ks, Dan Daniel H. Nielsen, PE, RSM, LEED-AP Vice -President, Principal Engineer MID -ATLANTIC ASSOCIATES, INC. 409 Rogers View Court I Raleigh, NC 276I0 919-250-9918 1919-250-9950 (Facsimile) 1919-614-3988 (Mobile) www.MAAONLINE.com I Outstanding Service Since 1993 Confidentiality Notice: The information contained in this e-mail is intended only for the individual or entity to whom it is addressed.lts contents (including any attachments) may contain confidential and/or privileged information. If you are not an intended recipient you must not use, disclose, disseminate, copy or print its contents. If you receive this e-mail in error, please notify the sender by reply e-mail and delete and destroy the message. From: Corporon, Joe[mailto:ioe.corporon@ncdenr.gov] Sent: Friday, February 23, 2018 8:35 AM To: Dan Nielsen <dnielsen@maaonline.com> Subject: RE: [External] Comments Draft NPDES NC0089702 Solis Brightleaf Received —Thanks Dan. Respectfully, Joe R. Corporon, L.G. 919-807-6394 NCDEQ/DWR/NPDES Permitting Archdale Building, 925C 1617 Mail Service Center Raleigh, North Carolina 27699 From: Dan Nielsen [mailto:dnielsen@maaonline.com] Sent: Friday, February 23, 2018 8:21 AM To: Corporon, Joe <ioe.corporon@ncdenr.gov> Cc: Brandon Yancey<byanceyPterwilligerpapoas.com>; Tom Barker<tbarker@terwilligerpappas.com>; Darin McClure <dmcclure@maaonline.com> Subject: [External] Comments Draft NPDES NC0089702 Solis Brightleaf 3 al email. Do minks or opements unless APIPIENFIPMEpicious email as an attachment to Mr. Corporon, On behalf of Terwilliger Pappas, please find attached comments on draft NPDES Permit NC0089702 dated February 23, 2018. If you have any questions, please let us know. Thank you, Dan gaeei.OiiRM1E t,ey:.a. ,e :-AV 0N+1 Owl Mid Atlantic Daniel H. Nielsen, PE, RSM, LEER -AP Vice -President, Principal Engineer MID -ATLANTIC ASSOCIATES, INC. 409 Rogers View Court' Raleigh, NC 27610 919-250-9918 1919-250-9950 (Facsimile) 1919-614-3988 (Mobile) www.MAAONLINE.com I Outstanding Service Since 1993 Confidentiality Notice: The information contained in this e-mail is intended only for the individual or entity to whom it is addressed.lts contents (including any attachments) may contain confidential and/or privileged information. If you are not an intended recipient you must not use, disclose, disseminate, copy or print its contents. If you receive this e-mail in error, please notify the sender by reply e-mail and delete and destroy the message. 4 Water Resources ENVIRONMENTAL QUALITY April 13, 2018 Brandon Yancy, Director of Construction Terwilliger Pappas Multi -Family Partners LLC 510 Glenwood Avenue, Suite 317 Raleigh, North Carolina 27603 Dear Mr. Yancy: ROY COOPER Governor MICHAEL S. RAGAN Secretary LINDA CULPEPPER Interim Director Subject: Return of Application for NPDES Permit NC0089702 Proposed Solis Brightleaf Apartments - Brownfields Groundwater Excavation Dewatering — Class PC-1 1001 West Main Street, Durham Durham County The Division understands from your application that you propose to develop several contiguous real estate parcels into a 1.45-acre apartment complex with subterranean parking. You intend that construction excavation dewatering, and a permanent drain system for parking will discharge to a local stormsewer under zero -flow receiving -stream conditions (7Q10 and 30Q2 = 0.0 cfs), the final receiving -stream classified water -supply WS-IV, NSW. Your written comments on the permit draft (submitted by your consultant, Mid -Atlantic, Inc., February 23, 2018) included new effluent data, presented as supplement to your application. These new data show a contribution to the waste -stream of oxygen -consuming wastes (BODs, TKN and Ammonia) not previously presented. We note concentrations significantly exceeding water -quality standards, specifically in samples POTW-5 and POTW-6 (your Attachment, Table 3). Please note that 15A NCAC 02B .0206 (d) (2) states: • "If the 30Q2 and 7Q10 flows are both estimated to be zero, no new or expanded (additional) discharge of oxygen consuming waste will be allowed. Requirements for existing discharges to streams where the 30Q2 and 7Q10 flows are both estimated to be zero will be determined on a case -by -case basis." As your proposed discharge is a new discharge of oxygen -consuming wastes, your proposal is disallowed by Rule. We regret not understanding the full effluent chemistry prior to submitting a permit draft. If you have questions, please email Joe R. Corporon, L.G. at (ioe.corporonLincdenr.g_ov] or call his direct line (919) 807-6394. ely, Linda Culpepper, Interim Direr Division of Water Resources hc: Central Files NPDES Program Files ec: RRO / SWPS: Danny Smith ATU: Susan Meadows; OCU: Maureen Kinney iK Mid Atlantic Engineering & Environmental Solutions February 23, 2018 Mr. Joe Corporon, LG Division of Water Resources WQ Permitting Section - NPDES 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Subject: DRAFT NPDES PERMIT COMMENTS SOLIS BRIGHTLEAF APARTMENTS DURHAM, NORTH CAROLINA NPDES PERMIT NUMBER: NC0089702 MID -ATLANTIC JOB NUMBER: 000R2807.01 Dear Mr. Corporon: 409 Rogers View Court Raleigh, NC 27610 office 919.250.9918 facsimile 919.250.9950 MAAONI-INE.COM On behalf of Terwilliger Pappas Multi -Family Partners (TPMFP), Mid -Atlantic Associates, Inc. (Mid -Atlantic) appreciates the opportunity to submit the following comments and information in response to the public comment period for NPDES Permit Number NC0089702. The NPDES permit is intended for the long term discharge of groundwater from beneath a subgrade parking structure situated at the base of an apartment building currently under construction (dewatering). The site is a Brownfield Site (20071-16-032) due to releases from an on -site fuel oil underground storage tank and the presence of chlorinated solvents in groundwater from an unknown and likely off -site source. Historical research suggests that the only contaminants of concern resulting from human activities are organic compounds associated with virgin petroleum fuel and chlorinated solvents. In order to accommodate an aggressive construction schedule, TPMFP negotiated with the City of Durham to accept the groundwater discharge into their POTW system on a temporary basis (Permit #4003). Discharge into the Durham POTW system started in July 2017. As a condition of permit #4003, monthly groundwater quality data has been collected. Aside from particulate filtering with a bag filter, the discharge to the Durham POTW is otherwise untreated. This data, which was not available when the NPDES Permit Application was submitted to NCDEQ in June 2017, provides a better understanding of the groundwater flow rates and quality we anticipate as the inflow to the treatment system. As indicated in the application, we anticipated a maximum daily flow of 600 gpd. The draft NPDES permit sets a 50 gpd limit. This daily flow limit is too low for this site. By comparison. the daily discharge volume limit under Durham permit #4003 is 1,500 gpd. Table 1 (attached) is a summary of the water volumes and rates discharged to the POTW since June 2017. As indicated in this table, the average daily discharge has been approximately 340 gallons. Since EXPERIENCED CUSTOMER FOCUSED INNOVATIVE Draft NPDES Permit Comments Solis Brightleaf Apartments Durham, North Carolina February 23, 2018 Page 2 the discharge rate could fluctuate significantly from dry to wet weather periods, we request that the discharge rate in the NPDES permit be revised to 1,500 gpd. Water quality data has also been collected on a monthly basis in accordance with Durham permit #4003 and these data are summarized in Tables 2 and 3 (attached). Many of the compounds tested for the Durham permit #4003 are listed in the draft NPDES permit. We request that NCDEQ consider this more representative data in determining final sampling requirements, including frequency. Review of these data suggest a stable water quality influent stream. These data do not suggest that water quality influent to the treatment system is going to fluctuate significantly. Thus, upsets in the discharge water quality are unlikely to occur. While we understand that more frequent sampling may be necessary at initial startup, weekly sampling after the first month of system operation appears unnecessary. We suggest that after the first month of operation, the four effluent characteristics currently scheduled for weekly sampling, assuming exceedances are not recorded during the initial month of operation, change to a monthly frequency. We also request that the adjustments to the monitoring frequency discussed in footnote 3 be applicable to all effluent characteristics being monitored. Given the low daily discharge rate and the low levels of contaminants in the influent stream, we feel the suggested changes are protective to the environment while also being fiscally responsible. We appreciate this opportunity to submit these comments on behalf of Terwilliger Pappas Multi - Family Partners. If you have any questions concerning our comments, please do not hesitate to call us at 919-250-9918. We look forward to receiving your response to our proposed changes to the draft NPDES permit. Sincerely, MID -ATLANTIC ASSOCIATES, INC. Daniel H. Nielsen, PE Principal Engineer Attachments: Table 1 Table 2 Table 3 CC: Brandon Yancey 11111111 Engineering & Environmental Solutions Mid Atlantic ATTACHMENTS Atlantic Engineering & Environmental Solutions Sample ID None POTW-1 TABLE 1 TOTAL GALLONS DISCHARGED TO POTW FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 J Date 7/24/2017* 7/26/2017 Meter Reading (gallons) 0 510 Average Discharged Per Day POTW-2 8/24/2017 POTW-3 9/29/2017 POTW-4 11/9/2017 POTW-5 POTW-6 12/13/2017 1/16/2018 12,980 25,850 27,600 38,100 49,500 0 255 430 358 431 3092 335 Notes: *Assumes flow meter installation date of 7/24/2017 'Dewatering system was taken offline for construction purposes during this reporting period 2Flow Meter broken. Discharge volume is being tracked manually and reported to Mid -Atlantic Wastewater Discharge Permit #4003 allows for the average discharge of up to 1,500 gallons/day TABLE 2 SUMMARY OF VOLATILE ORGANIC COMPOUNDS DETECTED IN GROUNDWATER (ug/L) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 Method 8260B POTW-1 POTW-2 POTW-3 POTW-4 POTW-5 POTW-6 Acetone Chloromethane Ethylene Dibromide 1,2-Dichloroethane 1,1,2- Trichloroethane Benzene 1,2,3-Trich lorobenzene Carbon Disulfide Bromodich loromethane 1,1- DIchloroethene Isopropyl ether Vinyl Chloride cis-1,2- Dichloroethene trans-1, 2-Dichloroethene Naphthalene Tetrachloroethene Trichloroethene Methyl tert-butyl ether (MTBE) Methyl Ethyl Ketone (2-Butanone) Methyl Isobutyl Ketone Notes: 7/26/2017 <0.31 <0.079 <0.051 <0.066 <0.066 <0.048 <0.40 <0.075 <0.062 <0.083 <0.050 <0.097 2.2 <0.094 0.51 J 27 1.1 <0.042 <0.24 15 8/24/2017 <0.31 <0.079 <0.051 <0.066 <0.066 <0.048 <0.40 <0.075 <0.062 <0.083 <0.050 <0.097 4.8 <0.094 <0.19 100 2.4 9/29/2017 7.0 <0.079 <0.042 <0.24 <0.078 <0.051 <0.066 <0.066 <0.048 <0.40 <0.075 <0.062 <0.083 <0.050 <0.097 0.84 <0.094 <0.19 27 0.68 <0.042 11/9/2017 <0.31 <0.24 4.6 J <0.079 <0.051 <0.066 <0.066 0.54 1.0 J 0.53 J <0.062 <0.083 <0.050 <0.097 7.8 <0.094 0.53 J 120 3.7 12/13/2017* 16 <0.042 <0.24 <0.078 <0.079 <0.051 <0.066 <0.066 <0.048 <0.40 <0.075 <0.062 <0.083 <0.050 <0.097 1.6 <0.094 <0.19 17 3.5 1/16/2018 11 1.4 <0.051 0.54 <0.066 <0.042 <0.078 <0.048 <0.40 <0.075 <0.062 <0.083 <0.050 <0.097 2.4 <0.094 <0.19 15 4.2 <0.042 <0.078 ug/L - micrograms per liter J = Detected but below the Reporting Limit; therefore, result is an estimated concentration * Samples from this date forward collected from permanent dewatering system. Samples collected prior to this date were collected from tem •ora dewaterin: s stem. 00 /(-7/1 feA 6-450 (�� TABLE 3 SUMMARY OF ADDITIONAL PARAMTERS DETECTED IN GROUNDWATER (mg/L) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 ADDITIONAL PARAMETERS TESTED (mg/L) BOD TSS TKN Ammonia Cyanide Arsenic Selenium Cadmium Chromium Copper Lead Mercury POTW-1 POTW-2 7/27/2017 8/24/2017 7.5 16 0.82 0.15 5.4 POTW-3 9/29/2017 3.2 BB 7.8 1.2 0.84 POTW-4 11 /9/2017 POTW-5 12/13/2017 .7 79.0 17 2.5 0.014 0.0022 POTW-6 1 /16/2018 ..J 16 190 29 5.6 . 0.0067 0.016 0.0019 0.053 0.028 0.018 0.0091 0.0023 0.0011 0.9955 0.003 0.0032 0.011 0.021 0.022 ter' EN6 �6 ikv /Ci Url /L J / Fec3 0.0073 1(t-0 .030.011 �a J —/ `5l`—nCfebD Molybdenum Nickel Silver 0.0028 0.0053 0.066 0.014 BH 0.031 0.029 B 0.029 0.029 Zinc Fluoride Chloride 0.29 0.56 74 0.046 30 0.040 26 0.036 0.11 28 0.054 0.34 31 0.099 0.26 Sfl Notes: -- - Not detected at or above laboratory method detection limits BOD - Biological Oxygen Demand TSS - Total Suspended Solids TKN - Total Kjeldahl Nitrogen mg/L - milligrams per liter NAN MEDIA COMPANY consult strategize. deliver. AFFIDAVIT OF PUBLICATION Pawered by Mcclatchy The News & Observer 215 S. McDowell St Raleigh, NC 27601 919-829-4500 Account # Ad Number Identification PO Cols Lines 104811 0003500216 Public Notice NC0089702 1 37 Attention: DEPARTMENT OF WATER RESOURCES 1617 MAIL SERVICE CENTER RALEIGH, NC 276991617 Public Notice North Carolina Environmental Management Commission/NP DES Unit 1617 Mail Service Center Raleigh, NC 27699-1617 Notice of Intent to issue o NPDES Wastewater Permll The North Carolina Environmental Management Commission proposesto issue a: NPDES wastewater discharge permit to the person(s) listed below. Written comments regarding the pro- posed permit will be accepted until 30 days after the publish dateofthis notice. The Director of the NC Division of Water Resources (DWR) may hold a public hearing should there be a significant de- greeof public interest. Please mail com- ments and/or information requests to DWR at the above address. Interested persons may visit the DWR at 512. N. Sal- isbury Street, Raleigh, NC to review in- formation on file. Additional informa- tion on NPDES permitand this notice may be found on our website:. http://deq. nc.goviabout/d11111ons/water- resources/water—resources-. permits/wastewater-branch/npdes- wastewater/public-noilces,or by calling (919) 807-6397. Terwilliger Pappas Mull - Family Partners LLC has applied for permit - N00089702 for the Soils Brightleaf Apis., 1001 W. Main St., Dur- ham, discharging treated groundwater via storm -sewer to a UT to Elterbe Creek, Neuse River Basin. H-S: 1-30-2018 WENDY DAWSON Notary Public North Carolina Johnston County STATE OF NORTH CAROLINA COUNTY OF WAKE Before the undersigned, a Notary Public of Johnston County, North Carolina, duly commissioned and authorized to administer oaths, affirmations, etc., personally appeared JEANNINE LYONS, who being duly sworn or affirmed, according to law, doth depose and say that he or she is Accounts Receivable Specialist of the News & Observer Publishing Company, a corporation organized and doing business under the Laws of the State of - North Carolina, and publishing a newspaper known as Durham Herald -Sun, Durham County and State aforesaid, the said newspaper in which such notice, paper, document, or legal advertisement was published was, at the time of each and every such publication, a newspaper meeting all of the requirements and qualifications of Section : 1-597 of the General Statutes of North Carolina and was a qualified newspaper within the meaning of Section 1-597 of the General Statutes of North Carolina, and that as such he or she makes this affidavit; and is familiar with the books, files and business of said corporation and by reference to the files of said publication the attached advertisement for DEPARTMENT OF WATER RESOURCES was inserted in the aforesaid newspaper on dates as follows: 1 Insertion(s) Published On: January 30, 2018 Sworn to and subscribed before me this 30th clay of January, 2018 My Commission Expires: 7/20/2021 Notary Signature DENR / DWR / NPDES EXPIDITED FACT SHEET - NEW NPDES PERMIT DEVELOPMENT NPDES Permit NC0089702 Applicant/Facility Name Applicant Address _Facility Address Permitted Flow (MGD) Type of Waste Facility Class Facility Status Vyk)r".2( Facility Information Terwilliger Pappas — Solis Brightleaf Apartments Groundwater Remediation (GW REM) 510 Glenwood Avenue, Suite 317, Raleigh 27603 1001 West Main Street, Durham 27701 0.027 Treated Groundwater excavation dewatering Physical/Chemical Renewal County Regional Office Durham RRO Stream Characteristics Receiving Stream Stream Segment _Summer 7Q10 (cfs) Winter 7Q10 (cfs) 30Q2 (cfs) Average Flow (cfs) IWC (%) UT to Ellerbe Creek 27-5-(03) 0.0 0.0 0.0 0.0 100 % [storm -sewer discharge] Stream Classification Drainage basin Subbasin Use Supporting 303(d) Listed State Grid USGS Topo Quad WS-V; NSW Neuse River Basin 03-04-01 Yes NSW Durham (?) Project Summary - The Applicant proposes [via consultant Mid -Atlantic Engineering and Environmental Solutions] to develop several contiguous real estate parcels into a 1.45-acre apartment complex with subterranean parking. Proposed excavation dewatering will discharge to a local stormdrain under zero -flow receiving -stream conditions (7Q10/30Q2 = 0.0 cfs). The Division concurs that this discharge alternative is the most viable based on feasibility and cost, as outlined in your Engineers Alternatives Analysis (EAA) included with your application. The Applicant proposes to install a French -drain dewatering system to service the entire site. This gravity drain is an unlined gravel trench to a depth of 2 feet, fitted at its bottom with a perforated 2-inch-diameter PVC drainpipe [see application, Figure C5.10]. Because this trench and pipe are open to the environment, it will gather groundwater, but to a depth of two -feet only. The proposed skid -mounted wastewater -treatment system is portable. The Applicant intends to dewater by pumping the French drain closest to a given excavation. If preconstruction requires excavating deeper than two (2) feet, DWR assumes the Permittee will dewater directly from the excavation, as needed. Discharge Conditions - A wastewater treatment system shall suffice to meet surface water quality (SWQ) stream standards. Wastewater design flow proposes to discharge 7 days/week, three (3) discharges per day, each for —30 minutes @ 0.55 gpm = 49.5 gpd [0.00005 MGD]. The proposed treatment system employs a bag filter, ion -exchange unit(s) [for metals removal] and two (2) each activated liquid -phase carbon canisters (see PRM's schematic P&ID-2). All treated effluent will be routed to Durham County's Storm -Sewer System, via Outfall 001 (see Mid -Atlantic's Drawing No. 1); treated wastes to be conveyed by stormdrain to a UT to Ellerbe Creek (see City of Durham approval letter dated April 13, 2017). The Division understands that construction includes a proposed two -deck parking structure that will require permanent dewatering facilities below the natural water table. Prior to installing permanent dewatering Page 1 of 2 facilities, the Applicant must submit an updated treatment -system design with plans and specifications, and apply to modify this permit as needed (see Supplement to Permit Cover Sheet). Parameters of Concern (POCs) - Because site -assessment analyses detected the present of chlorinated solvents, this site does not qualify for General Permit NCG510000. Parameters of Concern include a list of volatile and semi -volatile organic compounds, metals and other POCs identified during site assessment [see application Tables 1, 2, 3.1 and 3.3]. POCs include metals and compounds detected at concentrations exceeding their respective surface -water quality (SWQ) standards. Parameters exceeding their standard are permit -limited equal to the standard [as required under zero -flow receiving -stream conditions]. Others are included as "monitoring only" or limited in accord with applicable permitting strategies and secondary -treatment technologies [see permit section A. (1.)]. Because there are no effluent data to date, the permit provides the Permittee an option, after establishing a reasonable database, to petition the DWR to reconsider a given parameter's limits and/or monitoring frequency, as data may warrant [see permit section A. (1.), Footnotes]. RPA - Reasonable Potential Analysis (RPA) - RPA was not conducted because there are no data to date other than analyses of untreated samples collected for initial site assessment. WET Testing - Whole Effluent Toxicity (WET) - Acute, 24-hour Pass/Fail (Monthly) is required using sp- - Pimephales promelas [TGE3E]. WET test samples shall be collected concurrently o er samples to aid in diagnosing WET -Test failure, if any. Joe R. Corpora ., NPDES Unit. 24Jan2018 / Page 2 of 2 {NOES J.6Cs. 4\ -- TABLE 3.2 SUMMARY OF VOLATILE ORGANIC COMPOUNDS DETECTED TN GROUNDWATER (UM) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 MEHCO8260B NCGQS (UCr1L) IHSB RESIDENiAL GFOU MIAIERVRVI LEVELS EIHYIENEDIRCM IDE a.02 1.76 1,2-D1040RCE WNE 15A NCAC 02B SIJIBACE WAIERQUAIINSTNJ ms FISH WAERAQUAjC LIFE _pa-.'' NE 0.4 1,1,2- TRCHORCEI-w.jE 0.6 BENZENE BREMODIQ HORIUIEFLNYE 1 0.6 1,1- DICHLCFCEIHENE ISOFPYLEHER VINYL CH ORDE 350 22 NE WE!IJD TMW-1 ` TMW-2 TMW-3 I TMW-4. DAZE SPMPIED 2/7/2017 _ 217/2017 <0.51 <0.051 2/7/2017 _ 2/.A4117 <0.51 <0.051. <0.66 7.5 <0.66 6.5 1,24 15.9 8.76 NE <0.66 <0.066 <0.66 <0.066 NE NE 42 1 <0.48 <0.62 <0.062 <0.48 <0.62 00,61 <0.062 39.1 NE <0.83 <0.083 <0.83 0.66 70 OS-1,2- DIWta1ENE 1 WS.1, 2-DICIRORCEHENE 0,03 1,390 NE <0.50 <0.50 <0.050 1.47 NAP WlENE 70 100 NE NE NE NE NE <0.97 <0.097 <0.97 82-) 15 <0.56 <0.097 20 <0.94 <0.094 <0.94 5 TERIC!-HOR CEFipyE TRCHOFCEHENE MEHYLlESPBUM EFER MTBE? 0.7 3 34.8 NE 5.2 J <0.19 <1.9 20 11.5 1.04 1,000 NE 2,000 62\ 28 3.3. 1,2' <0.78 '5400 11 4,500 NE ug/L- microgram per liter NCGQS- North Carolina Groundwater Quality Standard IHSB - Inactive Hazardous Sites Branch VI - Vapor Intrusion NE - Not established All Method Detection Limits (MDLs) below the Residential Groundwater VI Screening Leve Bold - Detected concentration exceeds NCGQS or detection limit elevated above NCGQ! Bold and Shaded - Exceeds NCGQS and Residential Groundwater VI Screening Leve <0.42 14 <0.42 <0.042 ifrItE 6-66,\)A`Tris FABLE 3.1 MONITORING WELL AND GROUNDWATER ELEVATION DATA FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 WELL ID TOC (Fq TMW-1 99.85 TMW-2 90.35 TMW-3 96.65 TMW-4 94.88 DATE 2/7117 2/7/17 2/7/17 2/7/17 DTW (Fi; 7.18 SWLE (FI) a 92.67 TOC -TCP CF CAM% DTW - DEP1I-1DWAYI BEIONTOC SWLE - S71TC WAE EIEVA1tj 6,93 6.71 4.99 83.42 89.94 89.89 S 5- J 3. '?•1045-tf-- I/ k r34. 2/3C tlerALS TABLE 2 SUMMARY OF ADDITIONAL PARAMTERS DETECTED IN GROUNDWATER (UG'L) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 ADDITIONAL WID PARAMETERS TMW-1 I TMW-2 I TMW-3 I TMW-4 TESTED DAZE SAMPLED 2/7/2017 I 2/7/2017 1 2/7/2017 J 2/7/2017 BOD -- NA -- -- TSS 15,000,000 NA 21,000,000 3,000,000 TKN 940 NA 1,500 610 Ammonia -- NA -- -- Cyanide — NA -- -- Arsenic 6.5 2.3 19 3.9 Selenium 2.1 1.0 150 1.2 Cadmium -- — — -- Chromium 130 46 1,400 21 9 t Copper 71 BH 64 BH 4,000 BH _ 26 Lead J 40 36 -- 22 Mercury -- -- -- -- Molybdenum -- 2.1 — -- Nickel 120 BH 56 2,200 BH 25 Silver -- -- -- -- Zinc 280 BH 170 BH 6,600 BH 76 t_ Fluoride 120 120 -- -- Chloride 100,000 16,000 31,000 37,000 Notes: -- - Not detected at or above laboratory method detection limits BOD - Biological Oxygen Demand TSS - Total Suspended Solids TKN - Total Kjeldahl Nitrogen NCGQS - North Carolina Groundwater Quality Standard Bold - Highest detected concentration NE - Not established BH- Method Blank (MB) greater than one half of the reporting limit, but the sample concentrations are greater than 10x the MB NA - Not analyzed due to poor groundwater recharge in well TABLE 1 SUMMARY OF VOLATILE ORGANIC COMPOUNDS DETECTED IN GROUNDWATER (UQ'L) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 ME11-IO08260B WEIIJD TMW 1 1 TMW-2 1 TMW-3 1 TMW-4 D/1E SPMPIED 2/7/2017J__ 2/7/2017 2/7/2017 2/7/2017 E U Y1FTE DIBR741I DE <0.51 <0.051 <0.51 <0.051 1,2.OId-110111IIAhE <0.66 7.5 <0.66 6.5 1,1,2- TRCHIEREWNE <0.66 <0.066 <0.66 <0.066 BENZENE 42 <0.48 <0.48 0.61 B/CMCOIC}ICR MEIFI NE <0.62 <0.062 <0.62 <0.062 1 1,1- DIC IORE'I INEE <0.83 <0.083 <0.83 0.66 ISOM:MEIER <0.50 7.2 <0.50 <0.050 VINYL CHLORIDE <0.97 <0.097 <0.97 <0.097 C1S 1,2• 0104CFCEIFIBNE 82 1.5 <0.56 20 WW1, 2-DICtICRDEIEE <0.94 <0.094 <0.94 .4.1 NPP'FIAIEI E 5.2 J <0.19 <1.9 4.0 TEI'O1O OE1FETE 2,000 62 1,200 540 TRCHOR':EJ-EfE 28 3.3 <0.78 110 MET-IY 'ERFBUM' EFER lMTBE?... <0.42 14 <0.42 <0.042 RH11FC• Bold = Hight detected concentration or highest detection limit TABLE 3.3 SUMMARY OF ADDITIONAL PARAMETERS DETECTED IN GROUNDWATER (UGtL) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 15A NCAC 02B WEIIJD ADDITIONAL SLIRMEWAJER TMW-1 TMW-2 1 TMW-3 I TMW-4 PARAMETERS NCGQS (UC/L) QUALWSFVg6 DAESPMPIED TESTED FRESH WAERACXIA6C 2/7/2017 2/7/2017 2/7/2017 2/7/2017 LIFE 1IIdL) BOD NE 5,000 - NA -- -- TSS NE NE 15,000,000 NA 21,000,000 3,000,000 TIN 10,000 NE 940 NA 1,500 610 Ammonia NE NE - NA -- - Cyanide 70 r 5 - NA - -- Arsenic 10 150 6.5 2.3 19 3.9 Selenium NE 5 2.1 1.0 150 1.2 Cadmium 2 0.15 - - - Chromium 5 11* 130. _ .._ 46 1,400 21 Copper 1,000 2.7 71 BH _ 64 BH 4,000 BH 26 Lead 15 0.54 40 35 - 22 Mercury 1 0.0012 - - - - Molybdenum NE NE - 2.1 -- - Nickel 100 16 120 BH 56 2,200 BH 25 Silver 20 0.06 - -- - -- Zinc 1,000 36 280 BH 170 BH 6,600 BH 76 Fluoride 2,000 1.8 120 120 - - Chloride 250,000 230,000 100,000 16,000 31,000 37,000 Field Measured Parameters DO A NE 24 3.13 4.69 4.14 4.22 pH NE _ 6.0 - 9.0 5.33 6.32 5.53 6.04 _ [ Conductivity NE NE 0.407 0.226 0.238 0.278 Temperature j•C) NE NE 18.51 16.5 18.37 18.35 1 ORP NE NE 80.8 60.7 12.3 121.4 Notes: - - Not detected at or above laboratory method detection limits BOD - Biological Oxygen Demand TSS - Total Suspended Solids TKN - Total Kjeldahl Nitrogen ORP - Oxidation -Reduction Potential NCGQS - North Carolina Groundwater Quality Standard Bold - Exceeds the NCGQS Shaded - Exceeds Surface Water Quality Standards NE - Not established Bil- Method Blank (MB) greater than one half of the reporting limit, but the sample concentrations are greater than 10x the MB NA - Not analyzed due to poor groundwater recharge in well * Chromium VI TABLE 2 SUMMARY OF ADDITIONAL PARAMTERS DETECTED IN GROUNDWATER (mg/L) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 ADDITIONAL PARAMETERS TESTED (mg/L) Sample ID TMW-1 TMW-2 TMW-3 TMW-4 I POTW-1 POTW -2 POTW-3 W POT-4 W POT-5 POTW-6 W POT-7 - POTW -8 W POTW-9 POT-10 POTW-11 Date Sampled 2/7/2017 2/7/2017 2/7/2017 2/7/2017 1 7/27/2017 8/24/2017 9/29/2017 11/9/2017 12/13/2017 1/16/2018 2/15/2018 3/22/2018 4/18/2018 5/16/2018 6/18/2018 BOD -- NA -- -- 7.5 -- 3.2 BB -- 4.7 16 5.1 BB 2.4 8.9 GL 9.7 BB,DD 2.9 TSS 15,000 NA 21,000 3,000 16 5.4 7.8 -- 79.0 190 20 8.5 940 210 210 TKN 0.94 NA 1.5 0.61 0.82 -- 1.2 -- 17 29 25 15 6.8 1.2 NA Ammonia -- NA -- -- 0.15 -- 0.84 -- 2.5 5.6 23 16 5.1 0.20 0.27 Cyanide -- NA -- -- -- -- -- -- -- 0.0067 -- -- -- -- NA Arsenic 0.0065 0.0023 0.019 0.0039 -- -- -- -- 0.014 0.016 0.0098 0.0085 0.0079 0.0035 0.0024 Selenium 0.0021 0.001 0.15 0.0012 -- -- -- -- 0.0022 0.0019 0.0012 -- 0.0015 0.0011 0.0012 Cadmium -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Chromium 0.13 0.046 1.4 0.021 0.053 -- 0.0011 -- 0.011 0.0073 0.0013 0.0029 0.013 0.0093 0.0079 Copper 0.071 BH 0.064 BH 4 BH 0.026 0.028 0.0091 0.0055 -- 0.021 0.03 0.015 -- 0.018 0.0086 0.065 Lead 0.04 0.036 -- 0.022 0.018 0.0023 0.0031 0.0032 0.022 0.011 0.0041 -- 0.018 0.0079 0.012 Mercury -- - Molybdenum -- 0.0021 -- -- 0.0028 -- -- -- 0.0053 -- 0.0052 0.0073 -- -- - Nickel 0.12 BH 0.056 2.2 BH 0.025 0.066 0.014 BH 0.031 0.029 B 0.029 0.029 0.014 0.0080 0.019 0.019 0.051 Silver -- -- -- Zinc 0.28 NH 0.17 BH 6.6 BH 0.076 0.29 0.046 0.040 0.036 0.054 0.099 0.074 0.017 0.088 0.13 BH 0.14 Fluoride 0.12 0.12 -- -- 0.56 -- -- 0.11 0.34 0.26 0.17 0.18 -- -- Chloride 100 16 31 37 74 30 26 28 31 50 50 44 30 68 58 Notes: - Not detected at or above laboratory method detection limits BOD - Biological Oxygen Demand TSS - Total Suspended Solids TKN - Total Kjeldahl Nitrogen mg/L - milligrams per liter NE - Not established BH- Method Blank (MB) greater than one half of the reporting limit, but the sample concentrations are greater than 10x the MB NA - Not analyzed due to poor groundwater recharge in well BB - Blank value is outside of the control limits. Validity of the data not affected. B - Analyte is found in the associated blank at a concentration >1/2 the Reporting Limit GL - GGA result is less than the control limit DD - Difference between sample dilutions is greater than 30% NA - Not Available Shaded Values- Preliminary Data TABLE 1 SUMMARY OF VOLATILE ORGANIC COMPOUNDS DETECTED IN GROUNDWATER (ug/L) FORMER HOWERTON BRYAN FUNERAL HOME DURHAM, NORTH CAROLINA MID -ATLANTIC PROJECT NO.: R2807.01 Method 8260B Sample ID TMW-1 TMW-2 TMW-3 TMW-4 1 POTW-1 POTW-2 j POTW-3 POTW-4 j POTW-5 POTW-6 POTW-7 1 POTW-8 POTW-9 POTW-10 POTW-11 Date Sampled 2/7/2017 1 2/7/2017 2/7/2017 1 2/7/2017 ] 7/26/2017 8/24/2017 1 9/29/2017 11/9/2017 12/13/2017* 1/16/2018 2/15/2018 3/22/2018 F 4/18/2018 1 5/16/2018 1 6/18/2018 Acetone <3.1 <0.31 <3.1 <0.31 <0.31 <0.31 7.0 <0.31 16 11 7.3 5.2 10 <0.31 <0.31 Chloromethane <0.79 <0.079 <0.79 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 1.4 <0.079 <0.079 <0.079 <0.079 <0.079 1,2-Dibromoethane <0.51 <0.051 <0.51 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 <0.051 1,2-Dichloroethane <0.66 7.5 I <0.66 I 6.5 <0.066 <0.066 <0.066 <0.066 <0.066 , 0.54 0.82 0.67 <0.066 1.9 1.0 1,1,2- Trichloroethane <0.66 <0.066 <0.66 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 <0.066 Benzene 42 <0.48 <0.48 0.61 <0.048 <0.048 <0.048 0.54 <0.048 <0.048 <0.048 <0.048 <0.048 <0.048 <0.048 1,2,3-Trichlorobenzene <4.0 <0.40 <4.0 <0.40 <0.40 <0.40 <0.40 1.0 J <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 Carbon Disulfide <0.75 <0.075 <0.75 <0.075 <0.075 <0.075 <0.075 0.53 J <0.075 <0.075 <0.075 <0.075 <0.075 <0.075 <0.075 Bromodichloromethane <0.62 <0.062 <0.62 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 <0.062 1,1-Dichloroethene <0.83 <0.083 <0.83 0.66 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 Isopropyl ether <0.50 7.2 <0.50 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 Vinyl Chloride <0.97 <0.097 <0.97 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 <0.097 cis-1,2- Dichloroethene 82 1.5 <0.56 20 2.2 4.8 0.84 7.8 1.6 2.4 4.7 4.5 3.6 8.0 5.7 trans-1, 2-Dichloroethene <0.94 <0.094 <0.94 4.1 <0.094 <0.094 <0.094 <0.094 <0.094 <0.094 <0.094 <0.094 <0.094 <0.094 <0.094 Naphthalene 5.2 J <0.19 <1.9 4.0 0.51 J <0.19 <0.19 0.53 J <0.19 <0.19 <0.19 0.66 J <0.19 <0.19 <0.19 Tetrachloroethene 2,000 62 1,200 540 27 100 27 120 17 15 70 40 54 97 52 Trichloroethene 28 3.3 <0.78 110 1.1 2.4 0.68 3.7 3.5 4.2 11 8.8 9.4 17 11 Methyl tert-butyl ether (MTBE) <0.42 14 <0.42 <0.042 <0.042 <0.042 <0.042 <0.042 <0.042 <0.042 <0.042 <0.042 <0.042 1.7 3.4 Methyl Ethyl Ketone (2-Butanone) <2.4 <0.24 <2.4 <0.24 <0.24 <0.24 <0.24 <0.24 8.1 <0.24 <0.24 <0.24 <0.24 <0.24 1.6J Methyl Isobutyl Ketone <0.78 <0.078 <0.78 <0.078 15 <0.078 4.6 J <0.078 <0.078 <0.078 <0.078 <0.078 <0.078 <0.078 <0.078 Xylenes (Total) <1.2 <0.12 <1.2 <0.12 <0.12 <0.12 <0.12 <0.12 <0.12 <0.12 <0.12 0.51 J <0.15 <0.15 <0.15 Notes: ug/L - micrograms per liter J = Detected but below the Reporting Limit; therefore, result is an estimated concentration * Samples from this date forward collected from permanent dewatering system. Samples collected prior to this date were collected from temporary dewatering system. Shaded Values - Preliminary Data APPENDIX A CITY OF DURHAM CORRESPONDENCE 411111 Engineering & Environmental Solutions ir•t Atlantic Corporon, Joe From: Corporon, Joe Sent: Monday, June 25, 2018 2:51 PM To: 'Battle, Gerald' Cc: Hennessy, John Subject: RE: Solis Brightleaf Apartments, Groundwater Excavation Dewatering - Temporary Discharge Permit / Application for NPDES Permit NC0089702 Mr. Battle — Limits depend on receiving -stream dilution - they currently have none [zero -flow conditions]; a "new" discharge permit is forbidden by Rule unless they move their outfall. We may calculate limits only if they relocate to a positive streamflow [positive 30Q2]. The discharge flow vs. stream flow is known in permitting as the instream waste concentration (IWC), expressed as a percentage. With no dilution, their IWC =100%; Ammonia alone would likely begin with limits of 1.0 mg/L [summer] and 1.8 mg/L [winter] if allowed. In the subject case, DWR may not consider limits for a "new" discharge. Oxygen -consuming wastes remain their current problem. Respectfully, Joe R. Corporon, L.G. 919-807-6394 NCDEQ/DWR/NPDES Permitting Archdale Building, 925C 1617 Mail Service Center Raleigh, North Carolina 27699 From: Battle, Gerald[mailto:Gerald.Battle@durhamnc.gov] Sent: Monday, June 25, 2018 1:56 PM To: Corporon, Joe <joe.corporon@ncdenr.gov> Subject: [External] RE: Solis Brightleaf Apartments, Groundwater Excavation Dewatering - Temporary Discharge Permit / Application for NPDES Permit NC0089702 Importance: High CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to Mr. Corporon, You were going to share with me the limits they needed to meet to discharge to stormwater? Gerald Tyrone Battle Industrial Waste Control Administrator i Water Management, City of Durham 101 City Hall Plaza Durham, NC 27701 (0) (919) 560-4386 x. 35556 (C) (919) 475-2520 (F) (919) 560-4418 gerald.battle@durhamnc.gov httn://www.durhamnc.gov/ From: Corporon, Joe[mailto:joe.corporonCa�ncdenr.gov] Sent: Thursday, June 21, 2018 12:02 PM To: Battle, Gerald Cc: Dan Nielsen; Danny Smith; Hennessy, John Subject: Solis Brightleaf Apartments, Groundwater Excavation Dewatering - Temporary Discharge Permit / Application for NPDES Permit NC0089702 Mr. Battle - thanks for your call and email about the subject site. I did receive updated analytical effluent reports from the applicant; no need to forward. We understand that analyses to date represent untreated effluent [treatment system not yet installed], and there is some reason to suspect a BOD/TKN/ammonia contribution from the delivery system itself, downstream of the pumping wells. My permitting concerns about 02-consuming wastes center around a dilemma: 1. are these contaminates temporary, and will they dissipate to acceptable levels over a reasonable time period? Or, 2. are they related to unassessed site conditions predating the current construction. If your organization might extend their temporary sewer -connection, I feel our dilemma may resolve. Under existing Rule, a DWR permit for a new discharge would be considered only if they relocate their outfall to a positive 30Q2 receiving -stream flow [15A NCAC 02B .0206 (d) (1)]. We understand relocating would require considerable expense related to private right-of-way permissions and costs to extend a discharge line, if permissions were granted. If Durham County might extend their temporary permit [estimated flow —1,000 gpd], I feel our concerns may resolve over time, hopefully to move forward with DWR's permitting process. I also feel a two-year extension is prudent to establish an analytical database documenting that 02-consuiming wastes have disipated to acceptable levels. I leave this to your better judgement. Please advise. Respectfully, Joe R. Corporon, L. G. 919-807-6394 NCDEQ/DWR/NPDES Permitting Archdale Building, 925C 1617 Mail Service Center Raleigh, North Carolina 27699 2 Site ID: 1001 West Main Street, Durham, North Carolina Reconnaissance Date: May 9, 2016 CANE iiNr h NVIRt111R:1f' N IAI tat01'1, Photograph 3 -The south side of the main funeral home building Photograph 4 -The eastern side of the main funeral home building ONE — May 2016 Page 2 Terwilliger Pappas Site ID: 1001 West Main Street, Durham, North Carolina Reconnaissance Date: May 9, 2016 1 ®NE ONE ENV IRUNMF NIAL MIMI NMI= MI MI 1111111111111/ 44. Air Ammo OINK in p.mi glower -con imam i� um mom `,rt/Qat tia �is mum �j FUNERAL � ■HOME JIM IIIIMIIIIIII.....-• MIN III NINON IIII NMI IN NEM MINI III INN NI MIN III III MIN 1111111111•111M NI Photograph 2 -The north side of the main funeral home building Page 1 ONE — May 2016 Terwilliger Pappas Irai% r r ..t•e• OP' ., Its .:Iklik x............._4r.....,, •;,../0 .v.,4:6:::: _ _ -.411 .-.... .. 11 1 -• •, •• ""' 1;•:, -n-r •••••_ _ ••;`,": r ___L-LLI'- ...._,- / ' II. ,..41 1.• ,, .e.'":"-• , ••"1,..,4••:•.-:.--- ; .4,•• -,I i k it 4140. • • '., • — . ,...,'",:_:_ .._111 k i ilti, 'ki, . ILlia 1.10 'Liu /jai -4 . _•, • .........,_ ,,,..' -7,....S; y ,„ I, u I, lij m .., ,_......_ - -..---.._ •• , --,...... 1 ....,. . u., 11 •-,„,..- • :— .4111r..2-__.---,3.,...0".- — NN ' ' ,,,:7-• -__ . __ _ - '....... -- • -' i r n i _ POMWEV".4e.... /I �k # _ _.. _ TM W-1 EDB <0.51 EDC <0.66 1,1,2 TCA <0.66 BEN 42 BDCM <0.62 VC <0.97 c1.2-DCE 82 PCE 2,100 TCE 28 Legend G SUBJECT SITE in PARCEL BOUNDARY 9 TEMPORARY MONITORING WELL LOCATION ,Se" "In 1,1,2-TCA = 1.1,2TRICHLOROETHANE c1,2-DCE = cis 1,2 DICHLOROETHENE EDB = ETHYLENE DIBROMIDE EDC = ETHYLENE DICHLORIDE (1,2 DICHLOROETHANE) BEN = BENZENE BDCM = BROMODICHLOROMETHANE VC = VINYL CHLORIDE PCE = TETRACHLOROETHENE TCE = TRICHLOROETHENE 42 = VALUES EXCEED IHSB GW VI SL CONTAMINANT EDB EDC <0.051 <0.097 EDB EDC 1,1,2 TCA BDCM vc CONCENTRATION (ug/L) GROUNDWATER CONTAMINANTS ABOVE S NORTH CAROLINA GROUNDWATER QUALITY STANDARD M id Atlantic SOLIS BRIGHTLEAF APARTMENTS Engineering& Environmental Solutions 1001-1005 W. MAIN STREET & 1006-1016 W. PEABODY STREET DURHAM. NORTH CAROLINA REFERENCE: PARCEL AND ROAD GIS DATA FROM DURHAM COUNTY GIS. 2013 AERIAL IMAGERY FROM NC ONEMAP EDB <0.051 EDC 7.5 <0.097 PCE TCE DRAWN 4Y DRAFT CHECK BY: ENGINEER CHECK BY: APPROVED BY DATE FEBRUARY 2017 JOB NO.: 000R2807.01 GIS NO.: 04G-R2807.01-5 DRAWING NO.: 5 vwr ir Legend SUBJECT SITE • TEMPORARY MONITORING WELL LOCATION (89.89) GROUNDWATER ELEVTATION -► ESTIMATED GROUNDWATER FLOW DIRECTION ESTIMATED GROUNDWATER ELEVATION CONTOUR Mid Atlantic Engineering &Environmental Solutions 1:1,200 ESTIMATED GROUNDWATER CONTOUR MAP (2/7/2017) SOLIS BRIGHTLEAF APARTMENTS 1001-1005 W. MAIN STREET 1006-1016 W. PEABODY STREET DURHAM, NORTH CAROLINA REFERENCE: PARCEL AND ROAD GIS DATA FROM DURHAM COUNTY GIS. 2013 AERIAL IMAGERY FROM NC ONEMAP. 100 DRAWN BY: DRAFT CHECK BY: ENGINEER CHECK BY: APPROVED BY: 200 300 Feet DATE: FEBRUARY 2017 JOB NO.: 000R2807.01 GIS NO.: 04G-R2807.01-4 DRAWING NO.: