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Home My WebLink AboutWQCSD0181_SSO 5-Day Rpt_20230120 State of North Carolina Department of Environment and Natural Resources Division of Water Resources Collection System Sanitary Sewer Overflow Reporting Form Form CS-SSO Form CS-SSO Page 1 PART I: This form shall be submitted to the appropriate DWR Regional Office within five business days of the first knowledge of the sanitary sewer overflow (SSO). Permit Number: Deemed Collection System WQCSD0181 (WQCS# if active, otherwise use WQCSD#) Facility: Chatham Water Reclamation Facility Incident #: N/A Owner: Aqua Region: Raleigh City: Chapel Hill County: Chatham Source of SSO (check applicable): Sanitary Sewer 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.): Rear lot of 380 Elmwood Drive, Chapel Hill NC. Manhole #: Latitude (degrees/minute/second): 35°51'40.90"N Longitude (degrees/minute/second): 79° 0'56.91"W Incident Started Dt: 1/16/2023 Time: 11:56am Incident End Dt: 1/16/2023 Time: 1:30pm (mm-dd-yyyy) (hh:mm) AM/PM (mm-dd-yyyy) (hh:mm) AM/PM Estimated volume of the SSO: 150,000 gallons Estimated Duration (round to nearest hour): 72 hour(s) Describe how the volume was determined: Utilized effluent and forcemain flow meters to determine the start of the SSO and the amount of missing wastewater flow versus typical values at these meters. Weather conditions during the SSO event: Clear Did the SSO reach surface waters? Yes No Unknown Volume reaching surface waters: 145,000 gallons Surface water name: Unnamed Tributary to Morgan Creek Did the SSO result in a fish kill? Yes No Unknown If Yes, what is the estimated number of fish killed? n/a SPECIFIC cause(s) of the SSO: Severe Natural Conditions Grease Roots Inflow & Infiltration Pump Station Equipment Failure Power Outage Vandalism Debris in line Pipe Failure (Break) Other (Please explain in Part II) 24-hour verbal notification (name of person contacted): Curtis Tyree DWR Emergency Management Date (mm-dd-yyy): 1/17/2023 Time: (hh:mm AM/PM): 9:27am Per G.S. 143-215.1C(b), the owner or operator of any wastewater collection system shall: In the event of a discharge of 1,000 gallons or more of untreated wastewater to the surface waters of the State, issue a press release to all print and electronic news media that provide general coverage in the county where the discharge occurred setting out the details of the discharge. The press release shall be issued within 24 hours after the owner or operator has determined that the discharge has reached surface waters of the State. In the event of a discharge of 15,000 gallons or more of untre ated wastewater to the surface waters of the State, publish a notice of the discharge in a newspaper having general circulation in the county in which the discharge occurs and in each county downstream from the point of discharge that is significantly affe cted by the discharge. The Regional Office shall determine which counties are significantly affected by the discharge and shall approve the form and content of the notice and the newspapers in which the notice is published. WHETHER OF NOT PART II IS COMPLETED, A SIGNATURE IS REQUIRED SEE PAGE 13 State of North Carolina Department of Environment and Natural Resources Division of Water Resources Collection System Sanitary Sewer Overflow Reporting Form Form CS-SSO Form CS-SSO Page 2 Form CS-SSO Page 3 In order to submit a claim for justification of an SSO, you must use Part II of form CS-SSO with additional documentation as necessary. DWR staff will review the justification claim and determine if enforcement action is appropriate. 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 HAS BEEN SUBMITTED ELECTRONICALLY THROUGH THE ONLINE REPORTING SYSTEM Form CS-SSO Page 4 Severe Natural Conditions (hurricane, tornado, etc.) Describe the "severe natural condition" in detail: How much advance warning did you have and what actions were taken in preparation for the event? Comments: Form CS-SSO Page 5 Grease (Documentation such as cleaning, inspection, enforcement actions, past overflow reports, educational material and distribution date, etc. should be available upon request.) When was the last time this specific line (or wet well) was cleaned? Do you have an enforceable grease ordinance that requires new or retrofit of grease traps/interceptors? Yes No NA NE Have there been recent inspection and/or enforcement actions taken on near- by restaurants or other nonresidential grease contributors? Yes No NA NE Explain: Have there been other SSOs or blockages in this areas that were also caused by grease Yes No NA NE When? If yes, describe them: Have cleaning and inspections ever been done at this location? Yes No NA NE Explain. Have educational material about grease been distributed in the past? Yes No NA NE When: and to whom: Explain: If the SSO occurred at a pump station, when was the wet well and pumps last checked for grease accumulation: Were the floats clean? Yes No NA NE Comments: Form CS-SSO Page 6 Roots Do you have an active root control program on the line / area in question? Yes No NA NE Describe: Have cleaning and inspections ever been increased at this location because of roots? Yes No NA NE Explain: What corrective actions have been accomplished at the SSO location (and surrounding system if associated with the SSO)? What corrective actions are planned at the SSO location to reduce root intrusion? Has the line been smoke tested or videoed within the past year? Yes No NA NE If Yes, when? Comments: Form CS-SSO Page 7 Inflow and Infiltration Are you under an SOC (Special Order by Consent) or do you have a schedule Yes No NA NE in any permit that addresses I/I? Explain if Yes: What corrective actions have been taken to reduce or eliminate I & I related overflows this spill location within the last year? Has there been any flow studies to determine I/I problems in the Yes No NA NE collection system at the SSO location? If Yes, when was the study completed and what actions did it recommend? Has the line been smoke tested or videoed within the past year? Yes No NA NE If Yes, when and what actions are necessary and the status of such actions: Are there I/I related projects in your Capital Improvement Plan? Yes No NA NE If Yes, explain: Have there been any grant or loan applications for I/I reduc tion projects? Yes No NA NE If Yes, explain: Do you suspect any major sources of inflow or cross connections Yes No NA NE with storm sewers? If Yes, explain: Have all lines contacting surface waters in the SSO location and upstream Yes No NA NE been inspected recently? If Yes, explain: What other corrective actions are planned to prevent future I/I related SSOs at this location? Comments: Form CS-SSO Page 8 Pump Station Equipment Failure (Documentation of testing records, etc should be provided upon request) What kind of notification/alarm systems are present? Auto-dialer/telemetry (one-way communication) Yes Audible Yes Visual Yes SCADA (two-way communication) Yes Emergency Contact Signage Yes Other Yes If Yes, explain: Describe the equipment that failed: What kind of situations trigger an alarm condition at this station (i.e. pump failure, power failure, high water, etc.)? Were notification/alarm systems operable? Yes No NA NE In no, explain: If a pump failed, when was the last maintenance and/or inspection performed? What specifically was checked/maintained? If a valve failed, when was it last exercised? Were all pumps set to alternate? Yes No NA NE Did any pump show above normal run times prior to and during the SSO event? Yes No NA NE Were adequate spare parts on hand to fix the equipment Yes No NA NE Was a spare or portable pump immediately available? Yes No NA NE If a float problem, when were the floats last tested? How? If an auto-dialer or SCADA, when was the system last tested? How? Comments: Form CS-SSO Page 9 Power outage (Documentation of testing, records, tec., should be provided of alternative power source upon request.) What is your alternate power or pumping source? Did it function properly? Yes No NA NE Describe? When was the alternate power or pumping source last tested under load? If caused by a weather event, how much advance warning did you have and what actions were taken to prepare for the event? Comments: Form CS-SSO Page 10 Vandalism Provide police report number: Was the site secured? Yes No NA NE If Yes, how? Have there been previous problems with vandalism at the SSO location? If Yes, explain: What security measures have been put in place to prevent similar Yes No NA NE occurrences in the future? Comments: Form CS-SSO Page 11 Debris in line (Rocks, sticks, rags and other items not allowed in the collection system, etc.) What type of debris has been found in the line? Suspected cause or source of debris: Are manholes in the area secure and intact? Yes No NA NE When was the area last checked/cleaned? Have cleaning and inspections ever been increased at this location Yes No NA NE due to previous problems with debris? Explain: Are appropriate educational materials being developed and distributed Yes No NA NE to prevent future similar occurrences? Comments: Form CS-SSO Page 12 Other (Pictures and police report, as applicable, must be available upon request.) Describe: Were adequate equipment and resources available to fix the problem? Yes No NA NE If Yes, explain: If the problem could not be immediately repaired, what actions Yes No NA NE were taken to lessen the impact of the SSO? Comments: Form CS-SSO Page 13 Pipe Failure (Break) Pipe size (inches) 4" What is the pipe material PVC What is the approximate age of the line/ pipe (years old) 12 years old Is this a gravity line? Yes No NA NE Is this a force main line? Yes No NA NE Is the line a "High Priority" line? Yes No NA NE Last inspection date and findings N/A If a force main then, Was the break on the force main vertical? Yes No NA NE Was the break on the force main horizontal? Yes No NA NE Was the leak at the joint due to gasket failure ? Yes No NA NE Was the leak at the joint due to split bell? Yes No NA NE When was the last inspection or test of the nearest air-release valve to determine if operable? N/A When was the last maintenance of the air release performed? No air release If gravity sewer then, Does the line receive flow from a force main immediately upstream Yes No NA NE of the failed section of pipe? If yes, what measures are taken to control the hydrogen sulfide production? n/a When was the line last inspected or videoed? At installation If line collapsed, what is the condition of the line up and down stream of the failure? n/a What type of repair was made? Mechanical joint couplings and pvc section replaced If temporary, when is the permanent repair planned? n/a Have there been other failures of this line in the past five years? Yes No NA NE If so, then describe Form CS-SSO Page 14 System Visitation ORC Yes Backup Yes Name: Not required/This is a deemed collection system. Aqua Utility Technician Ashley Klinger monitors this station Certification Number: n/a Date visited: January 12, 2023 Time visited: 1:44pm How was the SSO remediated (i./e. Stopped and cleaned up)? Aqua contracted with Highland Environmental and Vaughn Utilities to address pipe break and the sanitary sewer overflow. Once the repair was completed, the ground surface was limed. Stream mitigation included the following; - * Straw dams were set up at several stations along the stream * Clean water was used to flush the solids on the bottom of the stream * Pumping the impacted water with suspended solids or solids from the bottom through dewatering bags with a charcoal layer * Discharge of the water from the dewatering bags into the wooded areas around the stream * Water quality parameters (pH, DO, conductivity, temperature) are being monitored at several stations along the stream (upstream, midstream, downstream). As a representative for the responsible party, I certify that the information containe d in this report is true and accurate to the best of my knowledge. Person submitting claim: Robert Krueger Date: Signature: ______________________________________________ Title: ___________________________________ Telephone Number: 919-908-3231 Any additional information desired to be submitted should be sent to the ap propriate Division Regional Office within five business days of first knowledge of the SSO with reference to the inciden t number (the incident number is only generated when electronic entry of this form is completed, if used). Area Manager 1/20/2023