Sewer Overflow Response Plan
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V e r s ion 2. 2 Revised May 1, 2017 Sewer Overflow Response Plan Revised by Evansville Water and Sewer Utility City-County Administration Building 1 Martin Luther King Blvd. Evansville, Indiana 47708 SORP 2.1 Prepared by 915 South Main Street Suite 406 Evansville, IN 47708 Submittal Authorization Approved By: May 1, 2017 Date I certify under penalty of law that I have examined and am familiar with the information submitted in this document and all attachments and that this document and its attachments were prepared under my direction or supervision in a manner designed to ensure that qualified and knowledgeable personnel properly gather and present the information contained therein. I further certify, based on my inquiry of those individuals immediately responsible for obtaining the information, that I believe that the information is true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment. May 1, 2017 III Document Reviewers Name Title Jeff Merrick Chief Regulatory Compliance Officer Harry Lawson Wastewater Superintendent Carl Gist CSO Manager Travis Hildebrandt Collection System Manager Bob Conner Maintenance Supervisor May 1, 2017 V Revision History Submittal Date Description 01-December-2010 SORP 1.0 Requirements Submittal 01-May-2011 SORP 2.0 Requirements Submittal 29-August-2011 SORP 2.1 Submittal amended with EPA Review Comments for SORP 2.0 01-May-2017 SORP 2.2 Submittal revised to reflect changes in the Utility’s work order management system in conjunction with SSO/ CSS reporting, as well as, changes in the overflow analysis investigation, SORP training and updated contact information to remain current. May 1, 2017 VII Contents Submittal Authorization .......................................................................................... iii Document Reviewers ..................................................................................................... v Revision History .............................................................................................................. vii Contents ............................................................................................................................. ix Acronyms and Abbreviations ........................................................................................ xi 1 Introduction and Requirements ............................................................................. 1-1 1.1 SORP Purpose and Goals ......................................................................................... 1-1 1.1.1 Purpose ........................................................................................................ 1-1 1.1.2 Goals and Objectives .................................................................................. 1-1 1.2 Key Utility Contacts .................................................................................................. 1-1 1.3 SORP Version ............................................................................................................. 1-1 1.4 Consent Decree SORP Requirements .......................................................................... 1-1 1.4.1 SORP 1.0 ...................................................................................................... 1-1 1.4.2 SORP 2.0 ...................................................................................................... 1-2 1.5 Applicable Definitions .............................................................................................. 1-3 2 Response ..................................................................................................................... 2-1 2.1 Receipt of Release Information ................................................................................ 2-1 2.1.1 Dispatch ....................................................................................................... 2-1 2.2 Response Resources .................................................................................................. 2-2 2.2.1 Resource Mobilization ............................................................................... 2-3 2.3 Site Arrival and Assessment .................................................................................... 2-3 2.4 Estimate the Release Volume........................................................................................ 2-4 2.5 Limit Flow to Impacted Area ................................................................................... 2-5 2.6 Correct, Contain, Recovery, and Cleanup .............................................................. 2-6 2.6.1 Containment ................................................................................................ 2-6 2.6.2 Additional Containment Measures .......................................................... 2-6 2.6.3 Correcting the Overflow ............................................................................ 2-7 2.6.4 Recovery and Cleanup ............................................................................... 2-7 3 Overflow Analysis Investigation .......................................................................... 3-1 4 Reporting .................................................................................................................... 4-1 4.1 Overview .................................................................................................................... 4-1 4.2 Field Reporting .......................................................................................................... 4-1 4.2.1 Building / Property Backup Reporting ................................................... 4-2 4.2.2 Field Report Review and Data Entry ....................................................... 4-3 4.3 Regulatory Reporting ................................................................................................ 4-3 4.3.1 Initial Discharge Report ............................................................................. 4-3 4.3.2 Monthly Discharge Monitoring Report (DMR) ...................................... 4-4 5 Public Notification ................................................................................................ 5-1 6 Training and Preparedness .................................................................................... 6-1 6.1 Training Records........................................................................................................ 6-2 6.2 SOP Training .............................................................................................................. 6-2 May 1, 2017 IX SEWER OVERFLOW RESPONSE PLAN VERSION 2.2 EVANSVILLE WATER AND SEWER UTILITY Appendixes A Key Utility Contacts B SORP Process Flow C Dispatch Response D SSO/CSS Release Reporting Standard Operating Procedure E Spill/SSO Volume Calculation Guidance F Traffic Control Standard Operating Procedure G Response, Recovery, and Cleanup Standard Operating Procedure H Manhole Inspection and Small Diameter C&I Standard Operating I Procedure Storm Drain Cleaning Standard Operating Procedure J Bypass/Overflow Incident Report Form 48373 K CSO Signage L Training and Organizational Participants X May 1, 2017 Acronyms and Abbreviations CMOM Capacity Management, Operations, and Maintenance CSO combined sewer overflow CSS combined sewer system GIS geographic information system IDEM Indiana Department of Environmental Management IT information technology NPDES National Pollutant Discharge Elimination System PPE personal protective equipment SOP standard operating procedure SORP Sewer Overflow Response Plan SSO sanitary sewer overflow SSS sanitary sewer system USEPA U.S. Environmental Protection Agency Utility Evansville Water and Sewer Utility WWTP wastewater treatment plant May 1, 2017 XI SECTION 1 Introduction and Requirements 1.1 SORP Purpose and Goals 1.1.1 Purpose This document presents the Evansville Water and Sewer Utility’s (Utility’s) Sewer Overflow Response Plan (SORP). The SORP is required by the Consent Decree and was developed to describe the Utility’s processes for identifying, responding to, mitigating, reporting, categorizing, and tracking sanitary sewer overflows (SSOs), combined sewer system (CSS) releases, and building/property backup events and the locations where they occur. 1.1.2 Goals and Objectives The SORP’s primary goal is for complete and accurate reporting of SSOs, CSS releases, and building/property backups that occur within the CSS and separate sanitary sewer (SSS) system. The SORP is focused on ensuring that the events are reported in a consistent manner, and in compliance with applicable state and federal law, the Utility’s National Pollutant Discharge Elimination System (NPDES) Permit, and with the Consent Decree SORP requirements found in Section 1.4 of this document. 1.2 Key Utility Contacts A list of key utility contacts can be found in Appendix A. 1.3 SORP Version The Consent Decree requires the Utility to prepare this SORP in two phases: SORP 1.0 and SORP 2.0. This document is SORP 2.1, amended with EPA review comments to SORP 2.0. The requirements for SORP 1.0 and SORP 2.0 are listed in Subsection 1.4. 1.4 Consent Decree SORP Requirements 1.4.1 SORP 1.0 SORP 1.0 requirements are described in Paragraphs 30 and 31 of the Consent Decree: 30. By no later than December 1, 2010, Defendants shall submit to Plaintiffs for review and approval pursuant to Section XV of this Consent Decree (Review and Approval Procedures) SORP 1.0, which