DOCSLIB.ORG

Pollution Prevention Storm Water and Sanitary Sewer Procedure

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Pollution Prevention Storm Water and Sanitary Sewer Procedure Pollution Prevention Storm Water and UBC.EMS Advisory Sanitary Sewer Committee.ENV.Procedure.002 Procedure Date of Issue: 14.06.26 Background Discharges to the storm sewer must comply with the following regulations and guidelines: • Fisheries Act • BC Hazardous Waste Regulation, Schedule 1.2 “Standard for discharges to the Environment or to Storm Sewers” • BC Contaminated Sites Regulations, Schedule 6 “Generic Numerical Water Standards” • CCME Water Quality Guidelines for the Protection of Aquatic Life • BC Water Quality Guidelines (Criteria) • Metro Vancouver’s Municipal Water Use Guidelines Discharges of hazardous materials to the sanitary sewer can compromise the health and safety of staff managing the drain system; these and other materials, such as oil and grease, may also damage the operation of the sewers and sewage facilities, and adversely impact the efficiency and cost-effectiveness of the waste water treatment. Discharges to sanitary sewers are regulated by the following: • Metro Vancouver Sewer Use Bylaw No. 299 Consolidated • BC Hazardous Waste Regulations • Transportation of Dangerous Goods Regulations • Workplace Hazardous Materials Information System (WHMIS) Metro Vancouver’s Sewer Use Bylaw No. 299 specifically regulates pollutants that are discharged into sewers. This bylaw aims to protect the environment as well as human health and safety. It specifies prohibited and restricted discharges and includes monitoring and permits requirements with respect to non-domestic discharges. Additional information can be found under the following links: • UBC Sewer Use Bylaw Guidelines • RMS Hazardous Waste Management • RMS Waste Disposal Guide Purpose The purpose of this procedure is to prevent the pollution of UBC’s storm and sanitary sewer systems and the environment, by routine and planned discharges from research, operations, and maintenance activities. Following this procedure will also facilitate compliance with the applicable environmental requirements and guideline. Scope and Applicability This procedure applies to planned and routine discharges to the storm or sanitary sewers from research, operations and maintenance activities in UBC Point Grey campus. It does not address construction projects and activities, which are covered by C&CP Development Permit process and the related Erosion and Sediment Control Plan requirements. Revision of: “NEW” page 1 of 8 Created By: Noga Levit EMS Advisory Committee Risk Management Services Pollution Prevention Storm Water and UBC.EMS Advisory Sanitary Sewer Committee.ENV.Procedure.002 Procedure Date of Issue: 14.06.26 Definitions Domestic Waste means waste produced on residential premises, or sanitary waste and wastewater from showers and restroom washbasins produced on non-residential property Non-Domestic Waste means all wastewater except domestic waste, sanitary waste, storm water, uncontaminated Water, and septic tank waste; Storm Water means drainage water resulting from rainfall or other natural precipitation from the atmosphere and includes, but not limited to, water from melting snow or naturally occurring ice Responsibilities & Procedural Steps Discharges form operation and maintenance activities: Examples: pipes cleaning, surface cleaning, water main disinfection, neutralization and dilution tanks etc. Generators planning to discharge non- domestic waste water to the sanitary sewer system and or any effluent other than storm water to the storm sewer must apply for approval to discharge from RMS Environmental Services by completing the “UBC Planned Discharge to the Sanitary or Storm Sewer from Operation and Maintenance Activities” (Appendix 1). RMS Environmental Services will assess the waste stream for its fitness for storm sewer, or sanitary sewer discharge, or will determine that the effluent needs to be disposed as hazardous waste. RMS may require that the effluent will be tested as part of the assessment (testing costs are generator responsibility). The generator will have to provide RMS Environmental Services no less than seven working days prior to the anticipated discharge information regarding: • Total expected volume of effluent • Proposed discharge location • Any chemicals additives contained in the discharge; their nature and concentration. • MSDS for any material(s) to be mixed with the effluent including material’s concentration • Frequency of generation and discharge (for planned routine discharges) Discharges from laboratory research operations Small amounts of waste solutions that are not regulated because they do not exhibit any of the hazardous characteristics (ignitability, corrosivity, reactivity, or toxicity) as defined by BC Hazardous Waste Regulations, 2009, and is not restricted or prohibited by the Metro Vancouver Sewer Use By-law can be disposed of via the sewer. 1. Lab personnel must review the online non-hazardous chemicals list. All listed materials which are not controlled by WHMIS and with NFPA designation in all related hazards of 0 or 1 can be disposed of safely via the sewer. Revision of: “NEW” page 2 of 8 Created By: Noga Levit EMS Advisory Committee Risk Management Services Pollution Prevention Storm Water and UBC.EMS Advisory Sanitary Sewer Committee.ENV.Procedure.002 Procedure Date of Issue: 14.06.26 2. If the waste is not in the above list, generator must complete the aqueous waste profile in Appendix 2 and RMS will help determine if the waste can be disposed of via sanitary sewers. 3. Corrosive waste that does not exhibit any other hazards must be neutralized to an acceptable pH range (5.5-10.5) before going down the drain. 4. Concentrated acids and bases need to be neutralized before drain disposal. 5. Bleach solutions can be quite damaging to plumbing if used in excess or if inappropriately disposed of. Bleach has a very high pH (12-14) and must be neutralized prior to sink disposal. a. A common tissue culture protocol requires decontamination of cells prior to disposal using 10% fresh bleach added to the culture and media. In general, culture media exhibits a buffering effect on bleach and the resulting pH is in the range of 6-8. However, this depends on the media and the pH must be tested for each new experimental set-up. b. There are several options for bleach neutralizers: sodium bicarbonate (NaHCO3), sodium metabisulphite (Na2S2O5), sodium bisulphite (NaHSO3), sodium sulphite (Na2SO3), sodium thiosulphate (Na2S2O3), 3% hydrogen peroxide (H2O2). The use of ¼ to 1 teaspoon of solid neutralizer is sufficient to neutralize 1-4L of volume of 10% bleach solution Revision of: “NEW” page 3 of 8 Created By: Noga Levit EMS Advisory Committee Risk Management Services Pollution Prevention Storm Water and UBC.EMS Advisory Sanitary Sewer Committee.ENV.Procedure.002 Procedure Date of Issue: 14.06.26 Appendix 1: UBC Planned Discharge to the Sanitary or Storm Sewer from Operation and Maintenance and Construction Activities Please complete this form and e-mail to RMS Environmental Services Advisor at [email protected]; expect a response within 7 working days. Requester/Discharger: • Name • Phone Number Date Discharge Request Submitted: Date(s) of Expected Discharge: Discharge Details Type of liquid to be discharged Proposed discharge location Purpose of discharge Approximate volume Expected duration of discharge The discharge is capable of obstructing the flow or causing interference (yes/no) ; if yes describe Examples: earth, sand, ash, glass, tar, asphalt, plastic, wood, waste portions of animals, fish or fowl, solidified fat, etc. The discharge has a temperature of 65 degrees Centigrade or more (if yes provide temperature) The discharge contains conventional contaminants, such as: • Biochemical Oxygen Demand (BOD) • Total suspended solids (TSS) • Oil and Grease (if yes, provide details and concentration in mg/L) The discharge contains large particles (>0.5 cm) The discharge contains chemicals/contaminants (if yes) • Provide product MSDS • Provide quantity of chemical in use • Provide dilution factor of chemical in use • Provide pH of chemical The discharge contains biological agents (if yes describe) Revision of: “NEW” page 4 of 8 Created By: Noga Levit EMS Advisory Committee Risk Management Services Pollution Prevention Storm Water and UBC.EMS Advisory Committee.ENV.Procedure.002 Sanitary Sewer Procedure Date of Issue: 14.06.26 Appendix 2: Drain Disposal Assessment Tool for Laboratory - Summary of Aqueous Waste Profile Aqueous Waste Profile Drain Disposal Assessment Tool: Certain laboratory liquid waste streams which are not hazardous (i.e. not toxic, corrosive, flammable, or reactive), may fit drain disposal under certain conditions. Complete the following waste profile to allow RMS Environmental Services to determine if the waste stream of concern can be disposed via sanitary sewers. Refer to summary of Excel worksheet below. Contact Information Chemical Name(s) Contaminants Conc Volume Freq pH LD50 Health hazards, MSDS (per HWR+Bylaw+WHMIS) % Marine pollutant Corrosive Toxic Phenols, BETX (benzene, toluene, xylene), PAH’s (naphthalene), etc Flammable Oxidizing Dangerously Reactive Oil & Grease Metals (As, Cd, Hg, Pb, Ag, Zn, etc) Other (cyanide, sulphide, etc) Large particles NOTE: Dilution of waste for the purpose of meeting concentration limits is NOT ALLOWED. Revision of: “NEW” page 5 of 8 Created By: Noga Levit EMS Advisory Committee Risk Management Services Pollution Prevention Storm Water and UBC.EMS Advisory Sanitary Sewer Committee.ENV.Procedure.002 Procedure Date of Issue: 14.06.26 Appendix 3: Definitions based
Load more

Recommended publications
  • Draft Authorization to Discharge Under The
    Permit No. OK0034835 Permit Part I – Page 1 DRAFT AUTHORIZATION TO DISCHARGE UNDER THE OKLAHOMA POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT NUMBER: OK0034835 ID NUMBER: S21653 PART I In compliance with the Oklahoma Pollutant Discharge Elimination System Act (OPDES Act), Title 27A O.S. § 2-6-201 et seq. as amended, and the rules of the State of Oklahoma Department of Environmental Quality (DEQ) adopted thereunder {See OAC 252:606}; the Federal Clean Water Act, Public Law 95-217 (33 U.S.C. 1251 et seq.), Section 402; and NPDES Regulations (40 CFR Parts 122, 124, and 403), Grand Point (Point View) Wastewater Treatment Facility 35782 Grand Point Vinita, OK 74301 is hereby authorized to discharge treated wastewater from a facility located at approximately NW ¼, SW ¼, SW ¼, Section 2, Township 23 North, Range 21 East, Indian Meridian, Mayes County, Oklahoma to receiving waters: Lower Grand Lake O’ the Cherokees at the point located at approximately Latitude: 36° 29' 55.340" N [GPS: NAD 1983 CONUS] Longitude: 95° 02' 26.658" W [GPS: NAD 1983 CONUS] Water Body I.D. No. 121600030020_00 in accordance with effluent limitations, monitoring requirements and other conditions set forth in Parts I, II, III, and IV hereof. This permit replaces and supersedes the previous permit issued on February 12, 2013. The issuance date of this permit is Month Date Year. This permit shall become effective Month Date Year. This permit and authorization to discharge shall expire at midnight Month Date Year. For the Oklahoma Department of Environmental Quality: _______________________________________ __________________________________________ Michael B. Moe, P.E., Manager Shellie R.
    [Show full text]
  • NBP Year in Review 2014
    2014 YEAR IN REVIEW About WEF Founded in 1928, the Water Environment Federation (WEF) is a not-for-profit technical and educational organization of 36,000 individual members and 75 affiliated Member Associations representing water quality professionals around the world. WEF members, Member Associations and staff proudly work to achieve our mission to provide bold leadership, champion innovation, connect water professionals, and leverage knowledge to support clean and safe water worldwide. To learn more, visit www.wef.org. For information on membership, publications, and conferences, contact Water Environment Federation 601 Wythe Street Alexandria, VA 22314-1994 USA (703) 684-2400 http://www.wef.org For additional Biosolids information, please see biosolids.org. CONTACT: Water Environment Federation 601 Wythe Street Alexandria, VA 22314 703-684-2400 email: [email protected] Copyright © 2014 by the Water Environment Federation. All Rights Reserved. IMPORTANT NOTICE The material presented in this publication has been prepared in accordance with generally recognized utility management principles and practices and is for general information only. This information should not be used without first securing competent advice with respect to its suitability for any general or specific application. The contents of this publication are not intended to be a standard of the Water Environment Federation (WEF) and are not intended for use as a reference in purchase specifications, contracts, regulations, statutes, or any other legal document. No reference made in this publication to any specific method, product, process, or service constitutes or implies an endorsement, recommendation, or warranty thereof by WEF. WEF makes no representation or warranty of any kind, whether expressed or implied, concerning the accuracy, product, or process discussed in this publication and assumes no liability.
    [Show full text]
  • Federally Supported Water Supply and Wastewater Treatment Programs
    Federally Supported Water Supply and Wastewater Treatment Programs Updated May 3, 2019 Congressional Research Service https://crsreports.congress.gov RL30478 Federally Supported Water Supply and Wastewater Treatment Programs Summary For more than four decades, Congress has authorized and refined several programs to help communities address water supply and wastewater problems. The agencies that administer these programs differ in multiple ways. In terms of funding mechanisms, projects developed by the Bureau of Reclamation (Reclamation) and the U.S. Army Corps of Engineers (USACE) typically require direct, individual project authorizations from Congress. In contrast, standing program authorizations provide project funding for other agencies, including the Department of Agriculture (USDA), the U.S. Environmental Protection Agency (EPA), the Department of Commerce, and the Department of Housing and Urban Development (HUD). The key practical difference is that with the individual project authorizations, there is no predictable assistance or even guarantee of funding after a project is authorized, because funding must be secured each year in the congressional appropriations process. The programs, on the other hand, have set program criteria, are generally funded from year to year, and provide a process under which project sponsors compete for funding. In terms of scope and mission, the primary responsibilities of USACE are to maintain inland navigation, provide for flood and storm damage reduction, and restore aquatic ecosystems, while EPA’s mission relates to protecting public health and the environment. The Department of Commerce and HUD focus on community and economic development. Likewise, the specific programs—while all address water supply and wastewater treatment to some degree—differ in important respects.
    [Show full text]
  • Sanitary Sewer Rehabilitation
    FACT SHEET Sanitary Sewer Rehabilitation Sanitary sewer rehabilitation through repair and renewal is a common practice to reduce extraneous flow, and address structural defects. This fact sheet serves as a basic resource for practitioners providing rehabilitation information, methods and key industry references. Introduction Sewers are a series of connected pipes or pipelines that convey either wastewater or storm water to a designated downstream location for treatment and/or disposal. There are three different types of sewers: sanitary, storm and combined. Sanitary sewers and combined sewers convey wastewater from homes, institutions and businesses to a centralized treatment plant. Sanitary sewers carry only wastewater whereas combined sewers carry both wastewater and storm water. Wastewater conveyance and treatment are important because they help prevent waterborne illnesses and promote general sanitation before safely discharging to receiving waters. Many older sewer systems consist primarily of combined sewers in the central or older part of the city but are surrounded by sanitary sewers built in newer growth areas. Storm sewers convey snowmelt and rainwater from yards, sidewalks and roadways and route it to receiving waters directly or through best management practices and facilities to remove certain pollutants. Sanitary and combined sewer systems usually contain private sewer laterals that connect individual buildings to main sewer pipelines. However, sanitary and combined sewers include more than just pipes. The pipes are part of an entire conveyance system that includes pump stations, force mains, manholes, storage facilities and other components. Similarly, storm sewer Figure 1: Typical Sources of I/I in Sanitary Sewer Systems conveyance systems can also include pump stations, force (Image from WEF, 2017) mains, manholes and storage facilities.
    [Show full text]
  • There Are Two Types of Systems Used in The
    Impacts of Sanitary Sewer Overflows and Combined Sewer Overflows on Human Health and on the Environment: a Literature Review Prepared For: Sacramento Area Sewer District Prepared By: Office of Water Programs California State University Sacramento August 2008 Introduction There are two types of public sewer systems used in the United States for collecting and conveying sanitary sewage, combined sewer systems (CSS) and sanitary sewer systems (SSS). Combined sewer systems collect and convey sanitary sewage and urban runoff in a common piping system. Sanitary sewer systems collect and convey sanitary sewage separately from urban runoff. In locations where SSSs exist, urban runoff is collected and conveyed in a separate storm sewer system (EPA, 2004). There are approximately 20,000 SSSs in the U.S. serving 147 million people and approximately 1,100 CSSs serving 43 million people (Meyland et al., 1998). CSSs were built prior to 1900 and were originally designed to convey combined sewage directly to points of discharge, generally into adjacent water bodies. With the advent of sewage treatment, CSS discharge points were redirected to wastewater treatment plant intake points (EPA, 2004). Out of economic necessity, wastewater treatment plants have limited hydraulic and treatment capacity. These plants are generally designed to accommodate diurnal peak sanitary sewage flows and loads, plus a limited additional hydraulic load resulting from wet weather sources. During wet weather events, hydraulic loads in CSSs quickly exceed the treatment and hydraulic capacity of treatment plants, necessitating diversion of part of the flow from the plant. Provisions for flow diversions around the treatment plant are designed into combined sewer systems.
    [Show full text]
  • Of 18 CHAPTER 29 Sanitary Sewer Use and Wastewater Treatment (Cr
    Page 1 of 18 CHAPTER 29 Sanitary Sewer Use and Wastewater Treatment (Cr. #40-87)(Am. #19-89)(Am. #17-92) (Repealed and replaced #1-18) 29.10 Industrial Wastewater Permits (section title amended #1-18) (Repealed and replaced #1-18) (a) Requirement of Permit. (1) Users That Need Permits. An Industrial Wastewater Permit shall be required for the following Users: (A) Significant Industrial Users. (B) At the discretion of the Control Authority, any other Industrial User may also be required to obtain an Industrial Wastewater Permit, including Generators of Hauled Waste or Users within another Municipality. (C) An Industrial Wastewater Permit shall be issued to all Zero- Discharge Industrial Users. (2) Permit Application. New or existing Users who are required by the Control Authority to obtain a Permit shall complete and file with the Control Authority a Permit application in the form prescribed by the Control Authority. Permit applicants shall also submit a Baseline Monitoring Report pursuant to WMC §29.10(b)(1). No Permit shall be issued unless and until the application form is submitted. (3) Permit Modifications. (A) The Control Authority may modify any Permit to reflect changes in federal, State, or local law, to incorporate the terms of an order, or to reflect changed circumstances. (B) The Permits of Industrial Users subject to Federal Categorical Pretreatment Standards or Pretreatment Requirements shall be revised within 9 months of the promulgation of such standards or requirements to require compliance within the time frame prescribed by the standards or requirements. (C) Permitted Industrial Users desiring to increase their Discharge volume, make new Connections to the System or change their Wastewater characteristics shall apply for a modified Permit by filing with the Control Authority a report detailing the proposed Page 2 of 18 CHAPTER 29 Sanitary Sewer Use and Wastewater Treatment (Cr.
    [Show full text]
  • Wastewater Releases/Bypasses — What You Should Know (Wq-Wwtp5-76)
    www.pca.state.mn.us Wastewater releases/bypasses – what you should know Nearly all cities in the United States use centralized sewer and wastewater treatment systems. Modern wastewater systems do a great job of protecting our streams, rivers, lakes, and drinking water. Most wastewater treatment systems consist of a collection system and a treatment plant. Almost all wastewater systems depend heavily on water to both collect and move sewage and to provide a treatment medium. The collection system, commonly called the “sewer system,” is designed for the normal volume of sewage generated in the community and is not normally designed to handle large volumes of inflow and infiltration (I&I) of water from storms, floods, or groundwater. Collection systems convey wastewater (sewage) from homes and businesses through pipes to the treatment plant where wastewater is treated to remove or neutralize its potentially harmful components. The treated wastewater is then discharged to local waterways or used for agricultural irrigation. Nonetheless, sometimes things go wrong. When that happens, it may become necessary to release untreated or partially treated wastewater to the environment. This type of discharge is known as an unauthorized release or bypass of wastewater. What is a wastewater release or bypass? A release is any overflow or spill of wastewater or materials to the environment. A release is an unauthorized discharge and is prohibited. Examples include sanitary sewer overflows from a plugged collection system or pumping untreated wastewater out of a manhole to a nearby ditch. Unauthorized releases, such as sanitary sewer overflows, are the most common type of event when wastewater systems are inundated with rain/snow melt or from pump or electrical failures.
    [Show full text]
  • Sewer System Management Plan (SSMP)
    SS SS SSEEWWEERR SSYYSSTTEEMM MM MMAANNAAGGEEMMEENNTT PPLLAANN Hyperion Sanitary Sewer System PP February 2017 This page left intentionally blank. City of Los Angeles Sewer System Management Plan (SSMP) For the Hyperion Sanitary Sewer System Overview This Sewer System Management Plan (SSMP) has been prepared for the Hyperion Sanitary Sewer System pursuant to the State Water Resources Control Board’s May 2, 2006, Statewide General Waste Discharge Requirements (WDRs) and amendments thereto. As shown on the following maps, the Hyperion System is by far the largest of the City’s three Sanitary Sewer Systems, including 6,117 miles of gravity sewer and 24 miles of force main. Currently an average wastewater flow rate of nearly 300 million gallons per day (MGD) is generated in the System. Approximately 60 MGD is treated at upstream Donald C. Tillman and Los-Angeles Glendale Water Reclamation Plants. All other flow in the System, and the biosolids from the upstream reclamation plants which are returned to the collection system, are treated at the Hyperion Water Reclamation Plant located in Playa Del Rey. The original SSMP was adopted by the City’s Board of Public Works and certified with the SWRCB in February 2009. Pursuant to the WDRs, the City conducts a biennial self-audit of its SSMPs and updates them as appropriate. This SSMP was prepared upon completion of the required self-audit and represents the City’s current SSMP as of February 2017. This SSMP is in full compliance with the WDRs and meets the following WDR objectives: a. Properly fund, manage, operate and maintain, with adequately trained staffs and/or contractors possessing adequate knowledge, skills, and abilities as demonstrated through a validated certification program at all times, all parts of the sanitary sewer system owned and/or operated by the discharger.
    [Show full text]
  • Biosolids Management and Enforcement 2000-P-10 March 20, 2000 Inspector General Division Headquarters Audit Division Conducting the Audit Washington, D.C
    Office of Inspector General Audit Report WATER Biosolids Management and Enforcement 2000-P-10 March 20, 2000 Inspector General Division Headquarters Audit Division Conducting the Audit Washington, D.C. Regions covered All Program Offices Involved Office of Water Office of Enforcement and Compliance Assurance UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Washington, D.C. 20460 OFFICE OF THE INSPECTOR GENERAL MEMORANDUM SUBJECT: Biosolids Management and Enforcement Audit Report No. 2000-P-10 FROM: Michael Simmons Deputy Assistant Inspector General for Internal Audits (2421) TO: J. Charles Fox Assistant Administrator for Water (4101) Steven A. Herman Assistant Administrator for Enforcement and Compliance Assurance (2201A) Our final audit report on Biosolids Management and Enforcement is attached. The objectives of our review were to determine whether (1) EPA oversight of biosolids land application can be more effective, and (2) the Government Performance and Results Act goal for biosolids is appropriate and readily reportable. Our report contains recommendations related to both objectives. This audit report describes findings and corrective actions the Office of the Inspector General (OIG) recommends to improve biosolids management and enforcement. It represents the opinion of the OIG. Final determinations on matters in this audit report will be made by EPA managers in accordance with established EPA audit resolution procedures. Accordingly, the findings described in this audit report are not binding upon EPA in any enforcement proceeding brought by EPA or the Department of Justice. ACTION REQUIRED In accordance with EPA Order 2750, the Assistant Administrator for Water, as the primary Action Official, is required to provide a written response to the audit report within 90 days of the final audit report date.
    [Show full text]
  • Sanitary Sewer Design Technical Criteria Manual
    CITY AND COUNTY OF DENVER DEPARTMENT OF PUBLIC WORKS SANITARY SEWER DESIGN TECHNICAL CRITERIA MANUAL (revised March 2008) TABLE OF CONTENTS SECTION SUBJECT PAGE 1 GENERAL 1 1.01 INTENT OF DESIGN CRITERIA MANUAL 1 1.02 SANITARY SEWER DEPARTMENT FUNCTIONS 1 1.03 REFERENCES 2 2 SANITARY PLANNING CRITERIA 3 2.01 INTER-RELATIONSHIPS OF STUDIES AND DESIGN REPORT 3 2.02 DESIGN/PLANNING PERIOD 3 2.03 POPULATION AND LAND USE PROJECTIONS 3 2.04 SANITARY SEWER FLOW CRITERIA 4 TABLE 2.04.1- RESIDENTIAL FLOW FACTORS 6 TABLE 2.04.2 – NON-RESIDENTIAL FLOW FACTORS 7 TABLE 2.04.3 - COMMERCIAL/INDUSTRIAL FLOW FACTORS 8 TABLE 2.04.4 - PLUMBING FIXTURE UNITS 9 FIGURE 2.04.1 - PEAK FLOW FACTOR GRAPH 11 TABLE 2.04.5 - SEWAGE PEAK FLOW FACTORS 11 2.05 SANITARY SEWER FEASIBILITY STUDY (MASTER PLAN) REQUIREMENTS 12 2.06 SANITARY SEWER STUDY REQUIREMENTS 13 TABLE 2.06.1 - SANITARY SEWER COMPUTATION SHEET 16 2.07 SANITARY SEWER DESIGN REPORT REQUIREMENTS 17 TABLE 2.07.1 - GRAVITY SEWER HYDRAULIC COMPUTATIONS 18 TABLE 2.07.2 - HYDRAULIC ELEMENTS FOR CIRCULAR PIPE 19 FIGURE 2.07.1 - HYDRAULIC ELEMENTS FOR CIRCULAR PIPE 20 2.08 METERING STATIONS 21 2.09 WASTEWATER PUMPING STATIONS 21 2.10 PRIVATE SEWER SYSTEMS 23 FIGURE 2.10.1 - TERMINAL PRIVATE SEWER CLEANOUT (6” Mains only) 24 2.11 BUILDING SERVICE CONNECTIONS 25 TABLE 2.11.1 – ACCEPTABLE SERVICE CONNECTION METHODS 26 FIGURE 2.11.1 - BUILDING SEWERS SERVICE LINE CLEAN-OUT 28 FIGURE 2.11.2 - BUILDING SEWERS SERVICE AND RISER DETAIL 29 2.12 SEWER ABANDONMENTS 30 2.13 FOUNDATION DRAINS 30 FIGURE 2.13.1 – UNDERDRAIN
    [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]
  • HEALTH ASPECTS of PLUMBING WHO Library Cataloguing-In-Publication Data Health Aspects of Plumbing
    HEALTH ASPECTS OF PLUMBING WHO Library Cataloguing-in-Publication Data Health aspects of plumbing. Published jointly by World Health Organization and World Plumbing Council. 1. Water supply. 2. Water treatment. 3. Waste disposal, Fluid. 4. Sanitary engineering. 5. Guidelines. I. World Health Organization. II. World Plumbing Council. ISBN 92 4 156318 4 (NLM classification: WA 675) ISBN 978 92 4 156318 5 © World Health Organization 2006 All rights reserved. Publications of the World Health Organization can be obtained from WHO Press, World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland (tel: +41 22 791 3264; fax: +41 22 791 4857; email: [email protected]). Requests for permission to reproduce or translate WHO publications – whether for sale or for noncommercial distribution – should be ad- dressed to WHO Press, at the above address (fax: +41 22 791 4806; email: [email protected]). The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. The mention of specific companies or of certain manufacturers’ products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a simi- lar nature that are not mentioned. Errors and omissions excepted, the names of proprietary prod- ucts are distinguished by initial capital letters.
    [Show full text]