DOCSLIB.ORG

Federal Register/Vol. 85, No. 150/Tuesday, August 4, 2020/Notices

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Federal Register/Vol. 85, No. 150/Tuesday, August 4, 2020/Notices Federal Register / Vol. 85, No. 150 / Tuesday, August 4, 2020 / Notices 47205 Sunday, August 16, 2020. The deadline ENVIRONMENTAL PROTECTION may be a delay in processing mail and to sign up to speak during the public AGENCY faxes. Hand deliveries and couriers may be received by scheduled appointment comment period, or to submit written [EPA–HQ–OW–2020–0282; FRL–10012–44– public comments, is 11:59 p.m., Eastern OW] only. For further information on EPA Daylight Time on Sunday, August 16, Docket Center services and the current 2020. When registering, please provide State Formula Allocations for Sewer status, please visit us online at https:// your name, organization, city and state, Overflow and Stormwater Reuse www.epa.gov/dockets. and email address for follow up. Please Grants FOR FURTHER INFORMATION CONTACT: For also indicate whether you would like to additional information, please contact AGENCY: Environmental Protection Michael Goralczyk, Office of Water provide public comment during the Agency (EPA). meeting, and whether you are (Mail Code 4204M), Environmental ACTION: Notice; request for information. submitting written comments by the Protection Agency, 1200 Pennsylvania Avenue NW, Washington, DC 20460; Sunday, August 16, 2020, deadline. SUMMARY: The Environmental Protection telephone number: 202–564–7347; or A. Public Comment Agency (EPA) is announcing the email: [email protected] proposed allotment formula for the (preferred). Individuals or groups making remarks Sewer Overflow and Stormwater Reuse during the public comment period will Municipal Grants Program as required SUPPLEMENTARY INFORMATION: be limited to three (3) minutes. To by the Clean Water Act. EPA is required Table of Contents accommodate the number of people to establish a formula to allocate proportional shares of the amount I. Public Participation who want to address the NEJAC, only II. Background one representative of a particular appropriated to state entities to fund III. Statutory Language for the Allotment community, organization, or group will actions that will help manage combined Formula be allowed to speak. Written comments sewer overflows, sanitary sewer IV. Proposed Allotment Formula can also be submitted for the record. overflows, and stormwater. EPA was V. Data Sources for the Proposed Allotment Formula The suggested format for individuals directed to develop a formula based on the relevant infrastructure needs VI. Request for Public Comment providing public comments is as submitted in the latest Clean follows: Name of speaker; name of I. Public Participation Watersheds Needs Survey along with organization/community; city and state; additional information considered Submit your comments, identified by and email address; brief description of appropriate by the EPA Administrator. Docket ID No. EPA–HQ–OW–2020– the concern, and what you want the A summary of the formula is included 0282, at https://www.regulations.gov/. NEJAC to advise EPA to do. Written in this document. This document Once submitted, comments cannot be comments received by registration announces that EPA is seeking feedback edited or removed from the docket. EPA deadline, will be included in the from the public on the formula. may publish any comment received to its public docket. Do not submit materials distributed to the NEJAC prior DATES: Comments on these items must to the teleconference. Written comments electronically any information you be received on or before September 3, consider to be Confidential Business received after that time will be provided 2020. to the NEJAC as time allows. All written Information (CBI) or other information ADDRESSES: comments should be sent to Karen L. You may send comments, whose disclosure is restricted by statute. identified by Docket ID No. EPA–HQ– Martin, EPA, via email at nejac@ Multimedia submissions (audio, video, OW–2020–0282, by the following etc.) must be accompanied by a written epa.gov. method: comment. The written comment is B. Information About Services for • Federal eRulemaking Portal: considered the official comment and Individuals With Disabilities or https://www.regulations.gov/. Follow should include discussion of all points Requiring English Language the online instructions for submitting you wish to make. The Agency will Translation Assistance comments. generally not consider comments or Instructions: All submissions received comment contents located outside of the For information about access or must include the Docket ID No. for this primary submission (i.e., on the web, services for individuals requiring notification. Comments received may be cloud, or other file sharing system). For assistance, please contact Karen L. posted without change to https:// additional submission methods, the full Martin, at (202) 564–0203 or via email www.regulations.gov/, including any EPA public comment policy, at [email protected]. To request special personal information provided. For information about CBI or multimedia accommodations for a disability or other detailed instructions on sending submissions, and general guidance on assistance, please submit your request at comments and additional information making effective comments, please visit least fourteen (14) working days prior to on the rulemaking process, see the https://www.epa.gov/dockets/ the meeting, to give EPA sufficient time ‘‘Public Participation’’ heading of the commenting-epa-dockets. to process your request. All requests section of this document. EPA is temporarily suspending its should be sent to the address, email, or Out of an abundance of caution for Docket Center and Reading Room for members of the public and our staff, the public visitors, with limited exceptions, phone number listed in the FOR FURTHER EPA Docket Center and Reading Room to reduce the risk of transmitting INFORMATION CONTACT section. are closed to public, with limited COVID–19. Our Docket Center staff will Dated: July 21, 2020. exceptions, to reduce the risk of continue to provide remote customer Matthew Tejada, transmitting COVID–19. Our Docket service via email, phone, and webform. Director for the Office of Environmental Center staff will continue to provide We encourage the public to submit Justice. remote customer service via email, comments via https:// [FR Doc. 2020–16882 Filed 8–3–20; 8:45 am] phone, and webform. We encourage the www.regulations.gov as there may be a delay in processing mail and faxes. BILLING CODE 6560–50–P public to submit comments via https:// www.regulations.gov or email, as there Hand deliveries or couriers will be VerDate Sep<11>2014 18:14 Aug 03, 2020 Jkt 250001 PO 00000 Frm 00046 Fmt 4703 Sfmt 4703 E:\FR\FM\04AUN1.SGM 04AUN1 jbell on DSKJLSW7X2PROD with NOTICES 47206 Federal Register / Vol. 85, No. 150 / Tuesday, August 4, 2020 / Notices received by scheduled appointment total proportional needs for municipal serve as surrogates for CSO, SSO, and only. For further information and CSOs, SSOs, and stormwater as stormwater infrastructure needs. The updates on EPA Docket Center services, identified in the most recent Clean three additional proposed factors are please visit us online at https:// Watersheds Needs Survey (CWNS) and annual average precipitation, total www.epa.gov/dockets. any other additional information population, and urban population. The EPA continues to carefully and considered appropriate by the EPA rationale for these additional factors continuously monitor information from Administrator. This is described in includes the following: the Centers for Disease Control and Section 221(g)(2) of the CWA: (1) Annual average precipitation is a Prevention, local area health ‘‘the Administrator shall use the amounts proposed factor because higher amounts departments, and our Federal partners appropriated to carry out this section for of precipitation lead to greater CSO, so that we can respond rapidly as fiscal year 2020 and each fiscal year SSO, and stormwater infrastructure conditions change regarding COVID–19. thereafter for making grants to States under needs to manage greater flows. subsection (a)(1) in accordance with a II. Background formula to be established by the (2) Total population is a proposed factor because the larger the population The America’s Water Infrastructure Administrator, after providing notice and an of a state, the more infrastructure is Act (AWIA) of 2018 aims to improve opportunity for public comment, that allocates to each State a proportional share of generally required to serve them. water quality, expand infrastructure such amounts based on the total needs of the (3) Urban population is a proposed investments, enhance public health, State for municipal combined sewer overflow increase jobs, and bolster the economy. factor because there are relatively higher controls, sanitary sewer overflow controls, CSO, SSO, and stormwater Section 4106 of the AWIA amended and stormwater identified in the most recent Section 221 of the Clean Water Act detailed estimate and comprehensive study infrastructure needs in urban (CWA) to re-authorize the Sewer submitted pursuant to section 516 of this title environments from increased Overflow and Stormwater Reuse and any other information the Administrator impervious surfaces, which generate considers appropriate.’’ Municipal Grants Program. This increased wet weather flows during amended statute directs EPA to award The CWNS includes documented precipitation events. grants to the states, the District of infrastructure needs. However, the most When combined with the needs Columbia, and
Load more

Recommended publications
  • Infiltration/Inflow Task Force Report
    INFILTRATION/INFLOW TASK FORCE REPORT A GUIDANCE DOCUMENT FOR MWRA MEMBER SEWER COMMUNITIES AND REGIONAL STAKEHOLDERS MARCH 2001 INFILTRATION/INFLOW TASK FORCE REPORT A GUIDANCE DOCUMENT FOR MWRA MEMBER SEWER COMMUNITIES AND REGIONAL STAKEHOLDERS MARCH 2001 Executive Summary This report is the product of the Infiltration/Inflow (I/I) Task Force. It has been developed through the cooperative efforts of the 43 Massachusetts Water Resources Authority (MWRA) member sewer communities, MWRA Advisory Board, The Wastewater Advisory Committee (WAC) to the MWRA, Charles River Watershed Association (CRWA), Fore River Watershed Association (FRWA), Mystic River Watershed Association (MRWA), Neponset River Watershed Association (NRWA), South Shore Chamber of Commerce (SSCC), Massachusetts Department of Environmental Protection (DEP), United States Environmental Protection Agency (EPA), and MWRA. The I/I Task Force recommends implementation of the regional I/I reduction goals and implementation strategies detailed in this report. The report outlines a regional I/I reduction plan with appropriate burdens and benefits for stakeholders. The report is intended to be a guidance document for use by local sewer communities, as well as other regional stakeholders, who may tailor appropriate aspects of the report recommendations to their unique situations. Severe storms in October 1996 and June 1998 led to the unusual circumstance of numerous sanitary sewer overflows (SSOs) from local and MWRA collection systems. In the aftermath of these events, EPA and DEP began an aggressive effort to make MWRA regulate flows from community sewer systems. MWRA recommended cooperative efforts by local collection system operators, as well as regulators and environmental advocates, would be more effective than a prescriptive, enforcement based approach.
    [Show full text]
  • Ssos and Csos What Are They and What Are We Doing About Them?
    SSOs and CSOs What are they and what are we doing about them? Don Kennedy – Training Coordinator James LaLiberte – Training Coordinator Combined sewers were introduced to the larger American cities in the mid-19th century. They were designed to dry out streets by collecting rainwater runoff, domestic sewage from newly invented flush toilets, and industrial wastewaters all in the same pipe. In dry weather, a combined sewer system sends a town’s entire volume of wastewater to a treatment plant, which treats and discharges to a waterway. The problems, generally, arise during heavy or extended rain events which can overload the system and seek relief. Such events can result in either a Sanitary Sewer Overflow (SSO), a Combined Sewer Overflow (CSO), or both. While both situations act as a relief for the system, one is intentional and the other is not. An SSO is an unintentional discharge of wastewater to the environment or personal property. SSOs are, generally, the result of poor sewer management and maintenance. Flow through sewer lines can be restricted by fats, oils and greases (FOG) or by tree roots. The system then does not have the capacity to handle a significant rain event, resulting in wastewater escaping through manholes, residences or businesses. TREE ROOTS IN SEWER Other contributors to the system are Inflow and Infiltration. These situations allow stormwater to enter the sewer system which shouldn’t. Infiltration - through bad joint or cracked pipes. Inflow – through illegal or unapproved connections, such as roof gutters, yard
    [Show full text]
  • Inflow and Infiltration Reduction in Sanitary Sewers
    Appendix E-4 – Inflow and Infiltration Reduction in Sanitary Sewers INFLOW AND INFILTRATION REDUCTION IN SANITARY SEWERS D.1 Introduction to RDII in Sanitary Sewers A properly designed, operated and maintained sanitary sewer system is meant to collect and convey all of the sewage that flows into it to a wastewater treatment plant. Rainfall dependent infiltration and inflow (RDII) into sanitary sewer systems has long been recognized as a major source of operating problems that cause poor performance of many sewer systems including system overflows. The extent of infiltration also correlates with the condition of aging sewers. The three major components of wet-weather wastewater flow into a sanitary system – base wastewater flow (BWWF), groundwater infiltration (GWI), and RDII are illustrated in Figure D-1 and are discussed below. Figure D-1: Three components of wet-weather wastewater flow BWWF, often called base sanitary flow, is the residential, commercial, institutional, and industrial flow discharged to a sanitary sewer system for collection and treatment. BWWF normally varies with water use patterns within a service area throughout a 24-hour period with higher flows during the morning period and lower during the night. In most cases, the average daily BWWF is more or less constant during a given day, but varies monthly and seasonally. BWWF often represents a significant portion of the flows treated at wastewater treatment facilities. GWI represents the infiltration of groundwater that enters the collection system through leaking pipes, pipe joints, and manhole walls. GWI varies throughout the year, often trending higher in late winter and spring as groundwater levels and soil moisture levels rise, and subsiding in late summer or after an extended dry period.
    [Show full text]
  • Inflow & Infiltration
    Inflow & Public Education Infiltration Committee This municipal water quality educational material was sponsored by the Public Municipal Water Quality Education Committee of the Public Educational Information Pennsylvania Water Environment Association (PWEA). PWEA is a Member Association of the Water Environment Federation (WEF). Please visit our Public Education Toolbox on PWEA’s website for other public educational material for the municipal water quality industry. PO Box 3367 Gettysburg, PA 17325 www.pwea.org www.pwea.org Inflow & Infiltration “I&I” is a short acronym for a huge problem most sewer communities face, Inflow and Infiltration. Inflow occurs when rainwater is misdirected into the sanitary sewer system instead of storm sewers. Examples are: roof leaders, footer drains, sump pumps, manhole covers, and cross connections from storm drains. The remedy for inflow is to remove improper connections to the sanitary sewer system. Infiltration occurs when ground water seeps into the sanitary The worst impact of I&I is the likelihood You, as a homeowner, can reduce I&I sewer system through cracks or that the sewage can overflow out of the from your property. leaks in sewer pipes. The cracks sewer pipe and into our environment. This • Check that gutters and outside drains or leaks may be caused by age yucky, gross runoff of untreated sewage, are not connected to sanitary sewers. related deterioration, loose joints, contaminated with fecal matter, urine, and • Avoid planting trees and shrubs over damage or root infiltration. The toilet paper, is often referred to as SSO building sewers. The roots can remedy for infiltration is repairing (Sanitary Sewer Overflow).
    [Show full text]
  • State of Technology for Rehabilitation of Wastewater Collection Systems
    EPA/600/R-10/078 | July 2010 | www.epa.gov /nrmrl State of Technology for Rehabilitation of Wastewater Collection Systems Office of Research and Development National Risk Management Research Laboratory - Water Supply and Water Resources Division United States Office of Research EPA/600/R-10/078 Environmental Protection and Development July 2010 Agency Washington, DC 20460 State of Technology for Rehabilitation of Wastewater Collection Systems State of Technology for Rehabilitation of Wastewater Collection Systems by Dr. Ray Sterling, P.E., Jadranka Simicevic, Dr. Erez Allouche, P.E. Trenchless Technology Center at Louisiana Tech University Wendy Condit, P.E. Battelle Memorial Institute Lili Wang, P.E. ALSA Tech, LLC Contract No. EP-C-05-057 Task Order No. 58 Ariamalar Selvakumar, Ph.D., P.E. Task Order Manager U.S. Environmental Protection Agency Urban Watershed Branch National Risk Management Research Laboratory Water Supply and Water Resources Division 2890 Woodbridge Avenue (MS-104) Edison, NJ 08837 National Risk Management Research Laboratory Office of Research and Development U.S. Environmental Protection Agency Cincinnati, Ohio 45268 July 2010 DISCLAIMER The work reported in this document was funded by the U.S. Environmental Protection Agency (EPA) under Task Order (TO) 58 of Contract No. EP-C-05-057 to Battelle. Through its Office of Research and Development, EPA funded and managed, or partially funded and collaborated in, the research described herein. This document has been subjected to the Agency’s peer and administrative reviews and has been approved for publication. Any opinions expressed in this report are those of the authors and do not necessarily reflect the views of the Agency; therefore, no official endorsement should be inferred.
    [Show full text]
  • Sanitary Sewer Overflow Response Plan
    CITY OF HEMET WASTEWATER DIVISION SANITARY SEWER OVERFLOW RESPONSE PLAN Appendix D of the City of Hemet Sewer System Management Plan Updated February 2016 City of Hemet Wastewater Department SANITARY SEWER OVERFLOW RESPONSE PLAN Table of Contents CHAPTER 1 INTRODUCTION ........................................................................................... 4 1.1 Regulatory Requirements ................................................................................................. 4 1.1.1 Statewide General Waste Discharge Requirements (GWDR) .................................. 4 CHAPTER 2 SPILL CATEGORIES AND REQUIREMENTS ........................................ 5 2.1 Summary of MRP Requirements ..................................................................................... 5 2.1.1 Spill Category 1 Discharges...................................................................................... 5 2.1.2 Spill Category 2 Discharges...................................................................................... 6 2.1.3 Spill Category 3 Discharges...................................................................................... 6 2.1.4 No Spill Certification ................................................................................................ 7 2.1.5 Private Lateral Sewage Discharge ............................................................................ 7 CHAPTER 3 RESPONSE TO NOTIFICATION OF SPILL ............................................. 8 3.1 Public Report of SSOs.....................................................................................................
    [Show full text]
  • In the United States District Court for the Western District of Missouri Western Division
    IN THE UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF MISSOURI WESTERN DIVISION UNITED STATES OF AMERICA, ) ) ) ) ) ) Civil Action No. 4:10-cv-0497-GAF Plaintiff, ) ) v. ) ) THE CITY OF KANSAS CITY, ) MISSOURI ) ) Defendant. ) ) THE STATE OF MISSOURI ) ) Non-aligned Party, ) Joined pursuant to 33 U.S.C. § 1319(e) ) ) ) ) THIRD AMENDED CONSENT DECREE Case 4:10-cv-00497-GAF Document 22 Filed 01/15/21 Page 4 of 107 TABLE OF CONTENTS I. JURISDICTION ........................................................................................................... 6 II. VENUE .......................................................................................................................... 6 III. BINDING EFFECT ...................................................................................................... 6 IV. PURPOSE ..................................................................................................................... 7 V. DEFINITIONS .............................................................................................................. 8 VI. SUBMISSIONS REQUIRING EPA AND STATE APPROVAL .......................... 16 VII. IMPLEMENTATION OF SEWER SYSTEM REMEDIAL MEASURES AND POST-CONSTRUCTION MONITORING ............................................................. 19 VIII. FUNDING ................................................................................................................... 29 IX. REPORTING .............................................................................................................
    [Show full text]
  • Sanitary Sewer Overflow Report Side a Category 1: Discharge of Untreated Or Partially Treated Wastewater of Any Volume Resulting
    Sanitary Sewer Overflow Report Side A Category 1: Discharge of untreated or partially treated wastewater of any volume resulting from a sanitary sewer system failure of flow condition that either (1) reaches surface water and/or drainage channel tributary to a surface water; OR (2) Reached a Municipal Separate Storm Sewer System (MS$) and was not fully captured and returned to the sanitary sewer system or otherwise captured and disposed of properly. Category 2: Discharge of untreated or partially treated wastewater greater than or equal to 1,000 gallons resulting from a sanitary sewer system failure or flow condition that either (1) Does not reach surface water, a drainage channel, or an MS4, OR (2) The entire SSO discharged to the storm drain system was fully recovered and disposed of properly. Category 3: All other discharges of untreated or partially treated wastewater resulting from a sanitary sewer system failure or flow condition. Spill from Private Lateral Describe in detail the basis for choosing the spill category: IMMEDIATE NOTIFICATION: If this is a Category 1 spill greater than or equal to 1,000 gallons, contact CalEMA within 2 hours at (800) 852-7550. A. SPILL LOCATION Spill Location Name: Latitude Coordinates*: Longitude Coordinates: Street Name and Number: Nearest Cross Street: City: Rancho Palos Verdes Zip: 90275 County: Los Angeles Spill Location Description: B. SPILL DESCRIPTION Spill Appearance Point (check one or more): Building/Structure Force Main Gravity Sewer Pump Station Other Structure (i.e. cleanout) Manhole-Structure ID# Other (specify): Did the spill reach a drainage channel and/or surface water: Yes (Category 1) No If the spill reached a storm sewer, was it fully captured and returned to the Sanitary Sewer? Yes No (Cat.
    [Show full text]
  • Sewer Odor Control Master Plan
    CITY OF LOS ANGELES SEWER ODOR CONTROL MASTER PLAN Wastewater Engineering Services Division Bureau of Sanitation AUGUST 2011 2011 Odor Control Master Plan TABLE OF CONTENTS Chapter Title Page ACRONYMS AND ABBREVIATIONS......................................................................... 3 EXECUTIVE SUMMARY .............................................................................................. 5 INTRODUCTION ..................................................................................................................................... 5 EVALUATION OF THE COLLECTION SYSTEM................................................................................. 6 RECOMMENDATIONS/CONSIDERATIONS ....................................................................................... 7 1.0 INTRODUCTION................................................................................................. 9 1.1 HISTORY OF THE SEWER SYSTEM................................................................................................. 9 1.2 ODOR GENERATION ..................................................................................................................... 9 1.3 HISTORY OF ODOR CONTROL..................................................................................................... 10 1.4 COLLECTION SYSTEM SETTLEMENT AGREEMENT AND ORIGIN OF THE MASTER PLAN .............. 13 1.5 PURPOSE AND OBJECTIVES......................................................................................................... 13 1.6 TASK DESCRIPTIONS
    [Show full text]
  • Standard Operating Procedure: Sanitary System Overflow Response
    Standard Operating Procedure: Sanitary System Overflow Response Date: 12/11/2019* Version: 4 Review Frequency: Annual Reasons for Procedure The University of Virginia (UVA) has a permit to operate a Municipal Separate Storm Sewer System (MS4) issued by the Virginia Department of Environmental Quality. This permit authorizes UVA to discharge stormwater pursuant to the Virginia Stormwater Management Program and the Virginia Stormwater Management Act. Since storm drain systems are not connected to a sanitary sewer treatment plant, water traveling through the storm drain system flows directly to local streams, rivers and lakes untreated. An illicit discharge to the storm system is generally defined as any discharge that is not composed entirely of stormwater. UVA’s MS4 Program “shall include all procedures developed by the operator to detect, identify, and address nonstormwater discharges to the MS4.”1 1.0 Purpose The purpose of this procedure is to quickly and appropriately respond to a sanitary sewer system overflow (SSO). 2.0 Scope This procedure applies to the FM employees responding to sanitary sewer overflows or spills. 3.0 Responsibility 3.1 Facilities Management Environmental Resources Environmental Resources is responsible for responding to the scene of the SSO to document the event, its cause, and its clean up. ER staff will report the SSO to the DEQ as required and following DEQ reporting information as describe in section 7.0. 3.2 Managers The Utility System Distribution Manager is responsible for ensuring that employees are properly informed of and trained on how to follow the procedures. Managers and supervisors are responsible for ensuring training is conducted with the most recent version of the SOP.
    [Show full text]
  • Massachusetts Water Resources Authority Combined Sewer Overflow Control Plan Annual Progress Report 2013
    Massachusetts Water Resources Authority Combined Sewer Overflow Control Plan Alewife Wetland, Cambridge Annual Progress Report 2013 March 2014 MWRA Board of Directors Richard K. Sullivan, Jr., Chairman John J. Carroll, Vice-Chairman Joseph C. Foti, Secretary Joel A. Barrera Kevin L. Cotter Paul E. Flanagan Andrew M. Pappastergion Brian R. Swett Henry F. Vitale John J. Walsh Jennifer L. Wolowicz Frederick A. Laskey, Executive Director Michael J. Hornbrook, Chief Operating Officer Prepared by: David A. Kubiak, P.E. Nadine S. Smoske Christopher Lam Cover: The constructed Alewife Stormwater Wetland, completed by the City of Cambridge and MWRA in April 2013, is intended to provide peak flow attenuation and wetlands treatment for the stormwater flows that will be removed from the combined sewer system by the CAM004 sewer separation project, now in construction. The wetland also provides ecological, recreational and educational benefits intended by the Department of Conservation and Recreation’s Alewife Reservation Master Plan. TABLE OF CONTENTS 1. INTRODUCTION 1 2. CSO CONTROL PROGRESS 1 2.1 2013 Progress Highlights and Accomplishments 1 2.2 Court Schedule Compliance and Compliance Risks 7 2.3 Ongoing Design and Construction Progress 8 Alewife Brook CSO Control Plan 8 CAM004 Stormwater Outfall and Wetland Basin 9 CAM004 Sewer Separation 14 Control Gate and Floatables Control at Outfall MWR003 and MWRA Rindge Avenue Siphon Relief 16 Reserved Channel Sewer Separation 18 2.4 Other CSO Control Improvements 21 BWSC South Dorchester Bay Inflow Removal 21 BWSC Lower Dorchester Brook Sewer Separation 21 City of Cambridge Sewer Separation Program 21 City of Chelsea Sewer Separation Program 22 City of Somerville CSO Metering Program 22 2.5 MWRA CSO Spending in 2013 22 3.
    [Show full text]
  • Sanitary Sewer Overflows
    Sanitary sewer overflows What are Sanitary Sewer Overflows? Why are SSOs a problem? A sanitary sewer overflow can spill domestic A key concern with SSOs entering rivers, lakes or wastewater out of manholes, onto streets and into streams is their negative effect on water quality. The stormwater systems or surface water bodies before it is overall impact of wastewater discharges to surface able to reach a treatment facility. waters is fortunately temporary. Our bays, rivers and gulf are constantly moving, which results in the dissipation Why Do Sewers Overflow? and dilution of wastewater contaminants in a few days. Although wastewater facilities are permitted and The Florida Department of Health issues health designed to safely and properly collect and manage a advisories when bacteria levels present a risk to human specified wastewater capacity, obstructions or extreme health, and may also post warning signs when bacteria conditions can cause SSOs. affect public beaches or other areas where there is the When the flow of wastewater is obstructed in the pipe, risk of human exposure. the wastewater may then back up and overflow through a manhole, cleanout, toilet, sink or drain. This Because SSOs contain partially treated (or potentially overflowing wastewater may then make its way into the untreated) domestic wastewater, ingestion or similar environment, a house or a business. contact may cause illness. People can be exposed through: Contributing factors may include: » Direct contact in areas of high public access » Too much rainfall infiltrating through the ground into » Food that has been contaminated leaky sanitary sewers, which are not intended to hold » Inhalation and skin absorption rainfall.
    [Show full text]