The URL can be used to link to this page

Home My WebLink AboutWQCS00013_NOV-2022-DV-0194 Response_20220804copY TOWN OF CARY August 4, 2022 Mr. Scott Vinson, Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NCDEQ 1628 Mail Service Center Raleigh, NC 27699-1628 CERTIFIED MAIL Subject: Notice of Violation (NOV-2022-DV-0194): Notice of Intent to Issue Civil Penalty Dear Mr. Vinson: On July 28, 2022, the Town of Cary Utilities Department received a Notice of Violation with a Notice of Intent (NOV-NOI) letter dated July 14, 2022 from the North Carolina Department of Environmental Quality, Division of Water Resources — Raleigh Regional Office for two sanitary sewer overflows (SSO) that occurred on June 9 and June 22, 2022. The NOV letter identifies the SSOs with a notice of intent to enforce and allows Cary the opportunity to provide evidence or justification within 10 business days from receipt of the letter to address the cause of non-compliance, remedial actions, and actions to prevent SSO recurrence. Incident # Start Date Duration (min) 202200880 6/9/2022 155 Location 4100 Cary Oaks Drive. Cause Debris in line Total I Total Volume Volume !Surface Water (Gal) (Gal) 2,917 2,917 202200983 6/22/2022 92 8921 Holly Springs Debris 3,759 Road. in line DWR Action Notice of Violation — Notice of Intent 2,076 Notice of Violation — Notice of Intent Cary takes pride in the operation and management of our nearly 1,000 miles of wastewater collection system. We are an award winning and progressive wastewater utility that has very few reportable or large volume SSO. We place emphasis on responding quickly to sewer emergencies to prevent and minimize any spills that impact our citizens, community, and environment. We appreciate the opportunity to provide information on the recent sewer overflows, our efforts, and justification for why additional enforcement action or civil penalty should not be assessed to the Town of Cary. TOWN Of CARY 400 James Jackson Avenue • Cary, NC 27513 • PO Box 8005 • Cary, NC 27512-8005 tel 919-469-4090 • fax 919-469-4304 • www.townofcary.org SSO Notice of Violation - Notice of Intent August 4, 2022 INCIDENT # 202200880 — 4100 Cary Oaks Drive Sewer Overflow Cause - On June 9, 2022 town staff received a phone call at 5:26 PM from a citizen that lives adjacent to 4100 Cary Oaks Drive in Apex, reporting water flowing from a manhole. Cary wastewater collection system staff immediately responded to investigate the call. Staff observed two overflowing manholes (SP76011033 and SP76011035) that were adjacent to each other. Sewer was exiting one manhole at a height of 3.5 inches from four one -inch vent holes and the other manhole three quarters of an inch through one one -inch vent. Wastewater flowed from the manhole into Camp Branch. The Sewer Spill Estimation Guide provided on the NCDEQ website along with site conditions was used to estimate the total sewer spilled reaching the stream. Cary staff used a hydraulic sewer jetting machine to clear the blockage and stop the sewer overflow at 8:01 PM. The cause of the spill was associated with a 10-inch sewer line cleaning that was preformed on June 8, 2022 in preparation for a planned sewer line maintenance and repair project. The sewer line was being proactively cleaned for a planned pump station force main pigging/cleaning operation and the replacement of an air release valve and manhole. The cleaning activity removed debris from the 10-inch gravity sewer line where debris strainers and vacuum trucks were used to collect the debris. During the cleaning operation some gravel and sediment debris traveled downstream to an adjoining sewer line and manhole which resulted in an obstruction that lead to the backup and SSO. Sewer Spill Cleanup — After stopping the sewer spill, Cary staff immediately began cleaning up the spill. A temporary dam was constructed downstream in Camp Branch beyond where the sewer spill traveled. Pumps were set up and the stream was flushed with 66,500 gallons of dechlorinated potable water. The wastewater and flushing waters were pumped into the sanitary sewer system for treatment. Cleaning and flushing occurred for approximately 12 hours. Sewer Spill Assessment - The Town performed conductivity readings following the overflow and during the spill cleanup to assess the spill and cleanup efforts. The following table provides a summary of the data collected at the time of the SSO and with sewer spill cleanup. Four small catfish were affected and collected during the spill cleanup. CONDUCTIVITY Date/Time => June 9, 2022 8:15 PM June 10, 2022 6:00 AM Location Result (pS/cm) Result (pSlcm) Unaffected water body nearby spill 133 142 SSO entry point to stream 621 235 50' Upstream 133 142 500' Downstream 403 207 900' Downstream 388 213 1,100' Downstream 375 210 1,300' Downstream 353 215 1,400' Downstream 325 196 SSO Notice of Violation - Notice of Intent August 4, 2022 Corrective Actions — On June 10, the NCDEQ Raleigh Regional Office was notified and a news release was published and distributed within 24 hours following the sewer spill (Enclosed). After clearing the blockage, the area sewer lines were hydraulicly cleaned and video inspected (1,411 feet cleaned and 633 feet video inspected) to ensure there was no additional accumulation or partial sewer line blockages. The video assessment identified some tuberculation (Photo 1.) on the interior of the 10-inch gravity sewer ductile iron pipe which contributed to the volume of debris removed with prior cleaning. We are adding this sewer line segment to our programming for rehabilitation and cure -in - place pipe lining. Cary's history of inspection included manhole inspections on December 1, 2021 with no issues identified at the time of the inspection. The sewer line was last cleaned the week of May 30, 2021. Following the sewer spill the sewer lines in area were cleaned and inspected to ensure we did not have a repeated spill. The planned pump station force main cleaning and repair project is still scheduled to occur. USMH: SP76010026 DSMH: 5P76010019 MWL Water Level 0 it. Photo I. - Interior pipe tuberculation Enforcement Actions — We request NCDEQ to consider that this unfortunate sewer spill was unintentionally caused by measures that were under way for planning for a proactive force main cleaning and repair project. We are disappointed that this spill occurred and that it was caused by our cleaning efforts. As Cary's collection system operation and maintenance program emphasizes the use of predictive and preventative measures to keep our system operating properly, this cleaning event supports an important force main cleaning and repair project which if not addressed could lead to a larger magnitude event. INCIDENT # 202200983 — 8921 Holly Springs Road Sewer Overflow Cause - On June 22, 2022 town staff received a phone call at 11:30 AM from a citizen reporting water flowing from a manhole located at 8921 Holly Springs Road, Apex. Cary wastewater collection system staff immediately responded to investigate the call. Staff observed an overflowing manhole (SP76011061). Sewer was exiting 2 vent holes at a height of a quarter of an inch and flowed into a depression in the ground that ponded in an area 45' X 20' with an average depth of 4-inches. Wastewater flowed from the ponded area into an unnamed tributary to Camp Branch. The Sewer Spill Estimation Guide provided on the NCDEQ website along with site conditions was used to estimate the total sewer spilled that ponded and reached the stream. Sewer volume estimates were based on a larger estimated total volume due to site conditions, spill ponding, and SSO Notice of Violation - Notice of Intent August 4, 2022 a citizen report that was received regarding a leak on June 21, but no sewer spill was found. Cary staff used a hydraulic sewer jetting machine to clear the blockage and stop the sewer overflow at 1:02 PM. The cause of the spill was a piece of broken concrete (Photo 2.) from past construction activities that allowed debris to collect in the 8-inch sewer line leading to a blockage. Sewer Spill Cleanup — After stopping the sewer spill, Cary staff immediately began cleaning up the spill. A temporary dam was constructed downstream in the tributary beyond the sewer spill site. Pumps were set up and the creek was flushed with 17,200 gallons of potable water. The wastewater and flushing waters were pumped into the sanitary sewer system for treatment. Cleaning and flushing occurred for approximately 1.5 hours. Photo 2. - Concrete removed, from sewer line Sewer Spill Assessment - The Town performed conductivity readings following the overflow and during the spill cleanup to assess the spill and cleanup efforts. The following table provides a summary of the data collected at the time of the SSO and with sewer spill cleanup. Eighty-eight minnows were affected and collected from the spill cleanup. The use of potable water, hot weather conditions around 100 degrees, and increased flow in the tributary is believed to have negatively affected the fish. CONDUCTIVITY Date/Time => June 22, 2022 3:00 PM June 22, 2022 4:30 PM June 22, 2022 6:30 PM Location Result (pS/cm) Result (pS/cm) Result (pS/cm) Unaffected water body nearby spill 88.5 225 — includes potable flush water 230 — includes potable flush water SSO entry point 145 243 232 50' Upstream 88.5 225 230 50' Downstream 107 250 234 100' Downstream 262 271 235 150' Downstream 274 280 232 200' Downstream 220 260 238 250' Downstream 180 252 236 Corrective Actions — On June 23, the NCDEQ Raleigh Regional Office was notified and a news release was published and distributed within 24 hours following the sewer spill (Enclosed). After clearing the blockage, the sewer lines were hydraulicly cleaned and video inspected to ensure there were no additional accumulations or sewer line blockages. The video assessment did not identify any additional issues with the 8-inch sewer line. Removal of the broken concrete remedied the cause for the blockage, and we no longer expect there to be any operational issues. Cary's history of inspection included a manhole and easement inspection December 1, 2021. SSO Notice of Violation — Notice of Intent August 4, 2022 We appreciate the opportunity in being able to provide information on both unfortunate sewer spills. These two instances are the only sewer spills that have occurred in those separate sewer line segment areas. We appreciate NCDEQ's consideration in evaluating these sewer spills, the cause, and Cary's record and response to remediate and help ensure that a SSO does not reoccur at these locations. If we can answer any questions or provide any additional information, please feel free to contact Mr. Donald Smith, Wastewater Collection System Manager at (919) 469-4095. Sincerely, mie Revels, P.E. Utilities Director Cc: Donald Smith, Wastewater Collection System Manager Paul Campbell, Wastewater Collection System Operator Enclosed: • NCDEQ Notice of Violation - NOI to issue Civil Penalty - NOV2022-DV-0194 B June 10, 2022 News Release - Gravel and Sediment Cause Sewer Spill in Cary • June 23, 2022 News Release - Construction Debris Causes Sewer Spill in Cary • Collection System Sanitary Sewer Overflow Reporting Form - Incident # 202200880 • Collection System Sanitary Sewer Overflow Reporting Form - Incident # 202200983 1-7 8e/p07, ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Certified Mail # 7020 3160 0000 4109 6142 'Worn Rgceipt Requested Jamie Revels, Director of Public Utilities Town of Cary PO Box 8005 Cary, NC 27512-8005 NORTH CAROLINA Environmental Quality July 14, 2022 SUBJECT: NOTICE OF VIOLATION & INTENT TO ISSUE CIVIL PENALTY Tracking No.: NOV-2022-DV-0194 Sanitary Sewer Overflows - June 2022 Collection System Permit No. WQCS00013 Cary Collection System Wake County Dear Mr. Revels: A review has been conducted of the self -reported Sanitary Sewer Overflows (SSO's) 5-Day Reports submitted by Town of Cary. The Division's Raleigh Regional Office concludes that the Town of Cary violated Permit Condition I (2) of Permit No. WQCS00013 by failing to effectively manage, maintain, and operate their collection system so that there is no SSO (Sanitary Sewer Overflow) to the land or surface waters and the SSO constituted making an outlet to waters of the State for purposes of G.S. 143-215.1(a)(1), for which a permit is required by G.S. 143-215.1. The Raleigh Regional Office is providing the Town of Cary an opportunity to provide evidence and justification as to why the Town of Cary should not be assessed a civil penalty for the violation(s) that are summarized below: Total Vol Total Surface Incident Start Duration Vol Water Number Date (Mins) Location Cause (Gals) (Gals) DWRAction 202200880 6/9/2022 155 4100 Cary Oaks Dr, Apex, North Carolina, 27539 Debris in line 202200983 6/22/2022 92 8921 Holly Springs Rd, Debris in line Apex, North Carolina, 27539 2,917 2,917 Notice of Violation - Notice of Intent 3,759 2,076 Notice of Violation - Notice of Intent 202200839 6/3/2022 35 1102 Queensferry Rd. Debris in line 217 217 No Further Action DEC)-'?) North Carolina Department of Environmental Quality I Division of Water Resources Raleigh Regional ()Mee 13800 Barrett Drive I Raleigh North Carolina 27609 919.791.4200 DWR State of North Carolina Department of Environment and Natural Resources Division of Water Resources Division of Water Resources Collection System Sanitary Sewer Overflow Reporting Form Form CS-SSO PART I: This form shall be submitted to the appropriate DWQ Regional Office within five business days of the first knowledge of the sanitary sewer overflow (SSO). Permit Number: WQCS00013 (WQCS# if active, otherwise use WQCSD#) Facility: Cary Collection System Owner: Town of Cary City: Cary Source of SSO (check applicable): County: Wake Region: Raleigh Q Sanitary Sewer ❑ Pump Station / Lift Station Incident #: 202200880 SPECIFIC location of the SSO (be consistent in description from past reports or documentation - i.e. Pump Station 6, Manhole at Westall & Bragg Street, etc): 4100 Cary Oaks Dr, Apex, North Carolina, 27539 Manhole #: 76011033, 76011035 Latitude (Decimal Degrees): Longitude (Decimal Degrees): Incident Started Dt: 06/09/2022 Time: 5:26 pm Incident End Dt: 06/09/2022 (mm-dd-yyyy) (hh:mm AM/PM) (mm-dd-yyyy) Estimated Volume of the SSO: 2,917 gallons Estimated Duration (Round to nearest Describe how the volume was determined: Sewer Spill Estimation Guide using spill area, observed Weather conditions during the SSO event: Clear Did SSO reach surface waters? Time: 08:01 pm (hh:mm AM/PM) hour): 2:35 hours flow, and creek condition Q Yes ❑ No ❑ Unknown Surface water name: Camp Branch Volume reaching surface waters (gals): 2917 Did the SSO result in a fish kill? Q Yes ❑ No ❑ Unknown If Yes, what is the estimated number of fish killed? SPECIFIC cause(s) of the SSO: • Debris in line 24 hour verbal notification (name of person contacted ): Chris Smith ▪ DWR ❑ Emergency Mgmt Date (mm-dd-yyy): 06/10/2022 Time (hh:mm AM/PM): 10:20:00 am 4 If an SSO is ongoing, please notify the appropriate Regional Office on a daily basis until SSO can be stopped. Per G.S. 143-215.1 C(b), the responsible party of a discharge of 1,000 or more of untreated wastewater to surface waters shall issue a press release within 24-hours of first knowledge to all print and electronic news media providing general coverage in the county where the discharge occurred. When 15,000 gallons or more of untreated wastewater enters surface waters, a public notice shall be published within 10 days and proof of publication shall be provided to the Division within 30 days. Refer to the reference statute for further detail. The Director, Division of Water Resources, rnav take enforcement action for SSOs that are required to be reported to Division unless it is demonstrated that: 1) the discharge was cause by sever natural conditions and there were no feasible alternative to the discharge; or 2) the discharge was exceptional, unintentional, temporary and caused by factors beyond the reasonable control of the Permittee and/or owner, and the discharge could not have been prevented by the exercise of reasonable control. Part II must be completed to provide a justification claim for either of the above situations. This information will be the basis WHETHER OR NOT PART III IS COMPLETED, A SIGNATURE 1S REQUIRED AT THE END OF THIS FORM CS-SSO Form Page: 1 PART II: ANSWER THE FOLLOWING QUESTIONS FOR EACH RELATED CAUSE CHECKED IN PART I OF THIS FORM AND INCLUDE THE APPROPRIATE DOCUMENTATION AS REQUIRED OR DESIRED COMPLETE ONLY THOSE SECTONS PERTAINING TO THE CAUSE OF THE SSO AS CHECKED IN PART I (In the check boxes below, NA = Not Applicable and NE = Not Evaluated) A HARDCOPY OF THIS FORM SHOULD BE SUBMITTED TO THE APPROPRIATE DWR REGIONAL OFFICE UNLESS IS Debris in line What type of debris has been found in the line? Gravel and sediment Suspected cause or source of debris. Sewer lines were being cleaned in the immediate area of spill in preparation for a sewer line repair. Gravel and sediment buildup from sewer line letting/cleaning accumulated in a downstream manhole causing the sewer backup and overflow. Source of gravel and sediment is suspected from past road paving activities in the area. Are manholes in the area secure and intact? WI Yes ❑ No ❑ NA ❑ NE When was the area last checked/cleaned? Inspected December 1, 2021 and cleaned between May 31.2022 and June 9, 2022 Have cleaning and inspections ever been increased at this location due to previous problems with debris? Yes ONo ENA ENE Explain: The sewer lines were being proactively cleaned in preparation for an upcoming planned sewer line repair. Are appropriate educational materials being developed and distributed to prevent futi ❑ Yes ❑ No NA ❑ NE similar occurrences? Comments: The blockage was a result from gravel and sediment buildup from sewer line cleaning that was occurring in the area and as a result of improper use of the sewer system. System Visitation ORC 0 Yes Backup ❑ Yes Name: Donald B. Smith Cert# 1001030 Date visited: 6/9/2022 Time visited: 8:45 PM CS-SSO Form Page: 2 How was the SSO remediated (i.e. Stopped and cleaned up)? The blocked sewer line was hydraulically wiled and vacuumed to remove the gravel and sediment causing the blockage. The sewer lines in the area were cleaned and inspected to ensure no additional blockages would occur from our cleaning activities. Conductivity was monitored in Camp Branch and a temporary dam was installed downstream of the sewer spill. De -chlorinated water (66,500 gallons) was used to flush and clean the stream. The sewer spill and flush water were pumt back into the sanitary sewer system for disposal and treatment. The areas around the manholes that spilled were cleaner up and powdered lime was applied to the ground and raked in to treat the soils. As a representative for the responsible party, I certify that the information contained in this report is true and accurate to the best of my knowledge. Person submitting claim: Donald Bradley Smith Signature: Telephone Number: / t4 — 4(0i'-4L)7,C' Date: 06/15/22 11:15 am Title. .)0 c,`'\L Any addition information desired to be submitted should be sent to the appropriate Division Regional Office within five days of f knowledge of the SSO with reference to the incident number (the incident number is only generated when electronic entry of th form is completed, if used). CS-SSO Form Page: 3 NEWS RELEASE .I Q)\V N 0 (..\r{\ W19TX 11011IllX.I June 10, 2022 Gravel and Sediment Cause Sewer Spill in Cary • On the evening of June 9, 2022. Cary responded to a 2.91 7-gallon sewer spill near Cary Oaks Drive. • The spill is the result of gravel and sediment accumulation foiloviting sewer line cleaning performed in the area in preparation for a planned sewer line repair. • The spill was cleaned up and de -chlorinated water was used to flush Camp Branch. The spill and flush water were pumped back into the sewer system for disposal and treatment. CARY, NC — A sewer spill in Cary occurred the evening of June 9, 2022 near 4100 Cary Oaks Drive. Cary staff responded to the alert that came in around 5:26 p.m., and stopped the spill at 8:01 p.m. The overall spill volume was 2,917 gallons, v.fiich flowed into Camp Branch. Four fish were affected by the sewer spill. The spill was caused by an accumulation of gravel and sediment that restricted flow in the sewer line resulting in a backup and manhole overflow Sewer lines in the area were cleaned earlier in the day in preparation for a planned sewer line repair project. A temporary dam was installed in Camp Branch and de -chlorinated water was used to flush and clean the stream. The sewer spill was cleaned up and flush water was pumped into the sewer system for disposal and treatment. As required by law, additional notification has been made to the State Department of Environmental Quality. who will review the incident. North Carolina General Statutes require public notice in the form of a news release issued by wastewater utility operators within 24 hours of the detection of a wastewater overflow of 1,000 gallons or greater that also reaches surface waters. Paid advertisements are also necessary for spills of 15,000 gallons or greater. For more on Cary's 990-plus miles of wastewater pipelines or information on how to report a sewer spill, visit to'.:incfoa -!, o g s :, yr or call 311 in Cary or (919) 469- 4000 from outside Town Limits. Primary Contacts If you have specific questions about Town sec; ices or operations, dial 311 anywhere in Cary. (919) 469-4000 outside town limits. or email DWR Division of Water Resources State of North Carolina Department of Environment and Natural Resources Division of Water Resources Collection System Sanitary Sewer Overflow Reporting Form Form CS-SSO PART I: This form shall be submitted to the appropriate DWQ Regional Office within five business days of the first knowledge of the sanitary sewer overflow (SSO). Permit Number: WQCS00013 (WQCS# if active, otherwise use WQCSD#) Facility: Cary Collection System Incident #: 202200983 Owner: Town of Cary City: Cary County: Wake Region Raleigh Source of SSO (check applicable): [r Sanitary Sewer El Pump Station / Lift Station SPECIFIC location of the SSO (be consistent in description from past reports or documentation - i.e. Pump Station 6, Manhole at Westall & Bragg Street, etc): 8921 Holly Springs Rd, Apex, North Carolina, 27539 Manhole #: SP76011061 Latitude (Decimal Degrees): Longitude (Decimal Degrees): Incident Started Dt: 06/22/2022 Time: 11:30 am Incident End Dt: 06/22/2022 Time: 01:02 pm (mm-dd-yyyy) (hh:mm AM/PM) (mm-dd-yyyy) (hh:mm AM/PM) Estimated Volume of the SSO: 3,759 gallons Estimated Duration (Round to nearest hour): 1:32 hours Describe how the volume was determined: Sewer Spill Estimation Guide using spill area, observed flow, and creek condition Weather conditions during the SSO event: Clear and sunny Did SSO reach surface waters? El Yes Q No ❑ Unknown Surface water name: Camp Branch Volume reaching surface waters (gals): 2076 Did the SSO result in a fish kill? Q Yes El No D Unknown If Yes, what is the estimated number of fish killed? 88 SPECIFIC cause(s) of the SSO: [0 Debris in line 24 hour verbal notification (name of person contacted ): Eric S Rice DWR ID Emergency Mgmt Date (mm-dd-yyy). 06/23/2022 _ Time (hh:mm AM/PM): 08:52:00 am If an SSO is ongoing, please notify the appropriate Regional Office on a daily basis until SSO can be stopped. Per G.S. 143-215.1 C(b), the responsible party of a discharge of 1,000 or more of untreated wastewater to surface waters shall issue a press release within 24-hours of first knowledge to all print and electronic news media providing general coverage in the county where the discharge occurred. When 15,000 gallons or more of untreated wastewater enters surface waters, a public notice shall be published within 10 days and proof of publication shall be provided to the Division within 30 days. Refer to the reference statute for further detail. The Director, Division of Water Resources, may take enforcement action for SSOs that are required to be reported to Division unless it is demonstrated that: W. 1) the discharge was cause by sever natural conditions and there were no feasible alternative to the discharge; or 2) the discharge was exceptional, unintentional, temporary and caused by factors beyond the reasonable control of the Permittee and/or owner, and the discharge could not have been prevented by the exercise of reasonable control. Part II must be completed to provide a justification claim for either of the above situations. This information will be the basis WHETHER OR NOT PART III I5 COMPLETED, A SIGNATURE IS REQUIRED AT THE END OF THIS FORM CS-SSO Form Page: 1 PART II: ANSWER THE FOLLOWING QUESTIONS FOR EACH RELATED CAUSE CHECKED IN PART I OF THIS FORM AND INCLUDE THE APPROPRIATE DOCUMENTATION AS REQUIRED OR DESIRED COMPLETE ONLY THOSE SECTONS PERTAINING TO THE CAUSE OF THE SSO AS CHECKED IN PART I (In the check boxes below, NA = Not Applicable and NE = Not Evaluated) A HARDCOPY OF THIS FORM SHOULD BE SUBMITTED TO THE APPROPRIATE DWR REGIONAL OFFICE UNLESS IS Debris in line What type of debris has been found in the line? A piece of concrete construction debris was lodged in the sewer line. Concrete appeared to be a portion of a concrete Diu removed from a manhole. Suspected cause or source of debris. Past construction and connection of sewer line to sanitary sewer manhole Are manholes in the area secure and intact? RI Yes 17 No E NA ❑ NE When was the area last checked/cleaned? 12/1/2021 Have cleaning and inspections ever been increased at this location due to previous E Yes 0 No E NA 171 NE problems with debris? Explain: No issues were identified in the past regarding obstructions, abnormal sewer operation. or construction debris in this sew+ line segment. Are appropriate educational materials being developed and distributed to prevent futt ❑ Yes iz No ❑ NA E NE similar occurrences? Comments: No educational materials were distributed to customers due to construction debris being the cause of the blockage. System Visitation ORC j Yes Backup ❑ Yes Name: Donald B. Smith Cert# 1001030 Date visited: 6/23/2022 Time visited: 5:00 PM CS-SSO Form Page: 2 How was the SSO remediated (i.e. Stopped and cleaned up)? A hydraulic iet was used to clear the blockage. The concrete construction debris was intercepted and removed from the sewer line. The sewer line was video inspected to ensure the blockage was completely cleared and all concrete pieces were removed. A depression around the manhole that spilled allowed approximately 1,600 gallons to pond. with the remainder flowing to an unnamed tributary to Camp Branch. The ponded sewer was pumped back into the sewer system disposal and treatment. Potable water was used to flush the ground and stream. The sewer spill and cleanup resulted In fish kill of 88 small minnows that were collected for disposal. Debris was picked up and powdered lime was applied to the ground at the site of the sewer spill to treat the soil. As a representative for the responsible party, I certify that the information contained in this report is true and accurate to the best of my knowledge. Person submitting claim. Donald Bradley Smith Telephone Number: 9 - LAL.c\`(o5S Date: 06/27/22 12:15 pm Title: L) .T Any addition information desired to be submitted should be sent to the appropriate Division Regional Office within five days of f knowledge of the SSO with reference to the incident number (the incident number is only generated when electronic entry of th form is completed, if used). CS-SSO Form Page: 3 [ NEWS RELEASE I ( )!+, N 41, C 11t1 a 14% June 23, 2022 Construction Debris Causes Sewer Spill in Cary • On the morning of June 22, 2022, Cary responded to a 3,759-gallon sewer spill near 8921 Holly Spr ngs Road. • The spil is the result of a piece of concrete construction debris lodged in the sewer line. • A portion of the spill accumulated in a depression around the manhole that spilled. The accumulated sewage was pumped back into the sewer system for disposal and treatment. The spill was cleaned up and the area flushed with water. CARY, NC — A sewer spill in Cary occurred the morning of June 22, 2022 behind 8921 Holly Springs Road. Cary staff responded to the alert that came in and 11:30 a.m. and stopped the spill at 1:02 p.m The overall spill volume was 59 gallons, which flowed into an unnamed tributary to Camp Branch. The spill was caused by a piece of concrete construction debris that restricted flow in the sewer line resulting in a backup and manhole overflow. Approximately 1,600 of the 3,759 gallons accumulated in a depression around the manhole with the remainder reaching the stream. The accumulation on the ground was pumped back into the sewer system for disposal .and treatment and the ground was cleaned by flushing with water. The sewer spill and cleanup activities affected around 80 small fish. As required by law. additional notification has been made to the State Department of Environmental Quality, who wi I review the incident. North Carolina General Statutes require public notice n the form of a news release issued by wastewater utility operators within 24 hours of the detection of a wastewater overflow of 1,000 gallons or greater that also reaches surface waters Paid advertisements are also necessary for spills of 15,000 gallons or greater For more on Cary's 990-plus miles of wastewater pipelines or information on how to report a sewer spill, visit tov,wnofcary orq. waver or call 311 in Cary or (919) 469- 4000 from outside Town Limits. Primary Contacts bu have specific questions about Town services or operations, dial 311 anywhere in Cary, (919) 469-4000 outside town limits. or email 11 f;tD \'n _a ;;0rg Resources • c. ENDER: COMPLETE THI E l • ►1 o. i 9.ms ¢Lng w E s088 acccricc M65¢ 000 0 00 ai❑0 ❑❑❑❑❑ a- �1 m ru ru 1-1 L ru E rR 2 QEi �r- Domestic Retum Receipt 0 O M 0 0 0 0 0 Z d 0 N co M LL ti