Cross-Connection Control Manual, February 2003
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January 29, 2020 Backflow Protection on an Emergency Eye Wash, Body
January 29, 2020 Backflow Protection on an Emergency Eye Wash, Body Drench Station, Animal Wash Basins, Mani/Pedicure Bowls near sink Code: 2018 Plumbing Code Section(s): P202, P405.1, P608.5, P608.13, P608.13.2, P608.13.5, P608.13.6, P608.13.7, P608.15.4.1 Question: Do I need to install a AVB, PVB, or an RP on an emergency shower, pull-out style drench hose, Animal wash basin, mani/pedicure bowls and/or eyewash stations at a sink/lavatory/service sink? Answer: Well, it depends. Does the station have continuous water pressure? Will the sink potentially receive waste consisting of chemicals, biohazards, and/or other high hazard applications? Does the station have an integral sprayer? Is there a fixed air gap between the outlet and any nearby sink, pits, and any other areas that would allow the outlet to be submerged? All of these variable and more, come into play when trying to determine what type of backflow protection is required on these types of stations at or near a sink. The type of faucet you use and how it is installed determines the type of backflow preventer that is required. These backflow requirements shall be determined during the CCC plan review process of the Building permit application using the MEP drawings. Compliance will be confirmed during the CO approval process by the CCC Inspector. The following shall be taken into consideration with choosing a system; P202 – Definitions Air Gap (Drainage System). The unobstructed vertical distance through the free atmosphere between the outlet of the waste pipe and the flood level rim of the receptacle into which the waste pipe is discharging. -
Cross-Connection Control Manual and Design Criteria for Cross-Connection Control Plans, Ordinances, and Policies
CROSS-CONNECTION CONTROL MANUAL AND DESIGN CRITERIA FOR CROSS-CONNECTION CONTROL PLANS, ORDINANCES, AND POLICIES DIVISION OF WATER SUPPLY TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION 2008 1. TABLE OF CONTENTS Tennessee Department of Environment and Conservation Guidelines…………..…………….……................. p.1 Definition of Terms............................................................................................................................................p.3 CHAPTER I. Introduction to Backflow Prevention…………………………………………………………..…....…....…..p.6 1.1 Introduction 1.2 Objective 1.3 Causes of Backflow 1.3.1 Backsiphonage 1.3.2 Backpressure II. Responsibility and Authority for Cross-Connection Control…………………………………………….....p.9 2.1 Responsibility 2.1.1 The Water Purveyor 2.1.2 The Customer 2.1.3 Plumbing Inspection Agencies 2.1.4 Installers and Maintenance Personnel 2.1.5 Tennessee Department of Environment and Conservation 2.1.6 Legal Consideration 2.2 Authority 2.2.1 General Discussion 2.2.2 Local Authority 2.2.3 State Wide Authority 2.2.4 Federal Authority III. Developing and Implementing a Cross-Connection Control Program………………………………..….p.14 3.1 Introduction 3.2 Outline of Considerations in Preparing a Plan 3.3 Discussions of Local Cross-Connection Control Plan 3.4 Implementation of the Cross-Connection Control Plan 3.5 Establishing Priorities for Investigation IV. Recommended Practices……………………………………………………………………………………...p.19 4.1 Basic Consideration 4.2 Premises Isolation 4.3 Situations Requiring Maximum Protection 4.4 Establishments -
Cross-Connection Questions, Answers & Illustrations
50 Cross-Connection Questions, 5Answers & Illustrations0 Relating to Backflow Prevention Products and Protection of Safe Drinking Water Supply watts.com What is backsiphonage? 1 Backsiphonage is the reversal of normal flow in a system caused by a negative pressure (vacuum or partial vacuum) in the supply piping. What factors can cause backsiphonage? 2 Backsiphonage can be created when there is stoppage of the water supply due to nearby firefighting, repairs or breaks in city main, etc. The effect is similar to the sipping of a soda by inhaling through a straw, which induces a flow in the opposite direction. What is backpressure backflow? 3 Backpressure backflow is the reversal of normal flow in a system due to an increase in the downstream pressure above that of the supply pressure. Supply Feed Valve What factors can cause a 4 backpressure backflow condition? Backpressure backflow is created whenever the downstream pressure exceeds the supply pres- sure which is possible in installations such as heating systems, elevated tanks, and pressure-producing systems. An example Return would be a hot water space-heating boiler operating under 15-20 Boiler lbs. pressure coincidental with a reduction of the city water supply below such pressure (or higher in most commercial boilers). As wa- ter tends to flow in the direction of least resistance, a backpressure backflow condition would be created and the contaminated boiler water would flow into the potable water supply. What is a cross-connection? 5 A cross-connection is a direct arrangement of a piping line which allows the potable water supply to be connected to a line which contains a contaminant. -
Multilinear Algebra and Chess Endgames
Games of No Chance MSRI Publications Volume 29, 1996 Multilinear Algebra and Chess Endgames LEWIS STILLER Abstract. This article has three chief aims: (1) To show the wide utility of multilinear algebraic formalism for high-performance computing. (2) To describe an application of this formalism in the analysis of chess endgames, and results obtained thereby that would have been impossible to compute using earlier techniques, including a win requiring a record 243 moves. (3) To contribute to the study of the history of chess endgames, by focusing on the work of Friedrich Amelung (in particular his apparently lost analysis of certain six-piece endgames) and that of Theodor Molien, one of the founders of modern group representation theory and the first person to have systematically numerically analyzed a pawnless endgame. 1. Introduction Parallel and vector architectures can achieve high peak bandwidth, but it can be difficult for the programmer to design algorithms that exploit this bandwidth efficiently. Application performance can depend heavily on unique architecture features that complicate the design of portable code [Szymanski et al. 1994; Stone 1993]. The work reported here is part of a project to explore the extent to which the techniques of multilinear algebra can be used to simplify the design of high- performance parallel and vector algorithms [Johnson et al. 1991]. The approach is this: Define a set of fixed, structured matrices that encode architectural primitives • of the machine, in the sense that left-multiplication of a vector by this matrix is efficient on the target architecture. Formulate the application problem as a matrix multiplication. -
Super Human Chess Engine
SUPER HUMAN CHESS ENGINE FIDE Master / FIDE Trainer Charles Storey PGCE WORLD TOUR Young Masters Training Program SUPER HUMAN CHESS ENGINE Contents Contents .................................................................................................................................................. 1 INTRODUCTION ....................................................................................................................................... 2 Power Principles...................................................................................................................................... 4 Human Opening Book ............................................................................................................................. 5 ‘The Core’ Super Human Chess Engine 2020 ......................................................................................... 6 Acronym Algorthims that make The Storey Human Chess Engine ......................................................... 8 4Ps Prioritise Poorly Placed Pieces ................................................................................................... 10 CCTV Checks / Captures / Threats / Vulnerabilities ...................................................................... 11 CCTV 2.0 Checks / Checkmate Threats / Captures / Threats / Vulnerabilities ............................. 11 DAFiii Attack / Features / Initiative / I for tactics / Ideas (crazy) ................................................. 12 The Fruit Tree analysis process ............................................................................................................ -
Chess-Training-Guide.Pdf
Q Chess Training Guide K for Teachers and Parents Created by Grandmaster Susan Polgar U.S. Chess Hall of Fame Inductee President and Founder of the Susan Polgar Foundation Director of SPICE (Susan Polgar Institute for Chess Excellence) at Webster University FIDE Senior Chess Trainer 2006 Women’s World Chess Cup Champion Winner of 4 Women’s World Chess Championships The only World Champion in history to win the Triple-Crown (Blitz, Rapid and Classical) 12 Olympic Medals (5 Gold, 4 Silver, 3 Bronze) 3-time US Open Blitz Champion #1 ranked woman player in the United States Ranked #1 in the world at age 15 and in the top 3 for about 25 consecutive years 1st woman in history to qualify for the Men’s World Championship 1st woman in history to earn the Grandmaster title 1st woman in history to coach a Men's Division I team to 7 consecutive Final Four Championships 1st woman in history to coach the #1 ranked Men's Division I team in the nation pnlrqk KQRLNP Get Smart! Play Chess! www.ChessDailyNews.com www.twitter.com/SusanPolgar www.facebook.com/SusanPolgarChess www.instagram.com/SusanPolgarChess www.SusanPolgar.com www.SusanPolgarFoundation.org SPF Chess Training Program for Teachers © Page 1 7/2/2019 Lesson 1 Lesson goals: Excite kids about the fun game of chess Relate the cool history of chess Incorporate chess with education: Learning about India and Persia Incorporate chess with education: Learning about the chess board and its coordinates Who invented chess and why? Talk about India / Persia – connects to Geography Tell the story of “seed”. -
3- Ways to Protect from Backflow
3- WAYS TO PROTECT FROM BACKFLOW Air gap Description: An approved air gap is a method of backflow prevention that means the physical separation between the end of the water supply pipe (example: faucet) and open vessel (example: sink). Installation and testing requirements: The separation must be twice the supply pipe inside diameter but never less than one inch. An air gap or physical disconnection gives the highest degree of protection and shall be used whenever practical in high hazard situations subject to backpressure. Since the application of air gaps is limited, other backflow protection systems can be used Reduced Pressure Zone Backflow Preventer Description: The Reduced Pressure backflow preventer consists of two independent check valves and a differential pressure relief valve, which automatically relieves excess pressure Typical use: The reduced pressure zone backflow preventer controls direct and indirect cross-connections it’s also used to isolate Installation and testing requirements: Due to certain combinations of potable water from non-potable water lines. Used check valve failure and/or system backpressure cause the relief valve to for high hazard risks, the reduced pressure zone discharge, the device must be mounted in a location where the drain will backflow preventer provides the highest level of not become flooded. Annual testing is required. protection. Double check Valve Assembly Description: The Double Check Valve (DC) assembly consists of two single independently acting check valves with water tight valves located at each end of the assembly. Typical use: The double check backflow preventer can only be used in low hazards situations. The use of this type of device is to Installation and testing requirements: The Double check valve (DC) must be protect against back-siphonage or backflow installed in an accessible location for annual testing, this device can be caused by backpressure. -
CHESS MASTERPIECES: (Later, in Europe, Replaced by a HIGHLIGHTS from the DR
CHESS MASTERPIECES: (later, in Europe, replaced by a HIGHLIGHTS FROM THE DR. queen). These were typically flanKed GEORGE AND VIVIAN DEAN by elephants (later to become COLLECTION bishops), though in this case, they are EXHIBITION CHECKLIST camels with drummers; cavalrymen (later to become Knights); and World Chess Hall of Fame chariots or elephants, (later to Saint Louis, Missouri 2.1. Abstract Bead anD Dart Style Set become rooKs or “castles”). A September 9, 2011-February 12, with BoarD, India, 1700s. Natural and frontline of eight foot soldiers 2012 green-stained ivory, blacK lacquer- (pawns) completed each side. work folding board with silver and mother-of-pearl. This classical Indian style is influenced by the Islamic trend toward total abstraction of the design. The pieces are all lathe- turned. The blacK lacquer finish, made in India from the husKs of the 1.1. Neresheimer French vs. lac insect, was first developed by the Germans Set anD Castle BoarD, Chinese. The intricate inlaid silver Hanau, Germany, 1905-10. Silver and grid pattern traces alternating gilded silver, ivory, diamonds, squares filled with lacy inscribed fern sapphires, pearls, amethysts, rubies, leaf designs and inlaid mother-of- and marble. pearl disKs. These decorations 2.3. Mogul Style Set with combine a grid of squares, common Presentation Case, India, 1800s. Before WWI, Neresheimer, of Hanau, to Western forms of chess, with Beryl with inset diamonds, rubies, Germany, was a leading producer of another grid of inlaid center points, and gold, wooden presentation case ornate silverware and decorative found in Japanese and Chinese clad in maroon velvet and silk-lined. -
Potential Plumbing Violations in Food Service Establishments Updated August 2008 Michigan Department of Agriculture, Food and Dairy Division
Potential Plumbing Violations in Food Service Establishments Updated August 2008 Michigan Department of Agriculture, Food and Dairy Division Protecting the Water Supply Line PROBLEM VIOLATION FC CORRECTION(s) ASSE#’s VALVE AREA (Hazard Section most DOWNSTREAM level) common Toilet Tanks Submerged 5-203.14 Anti-siphon ball cock ASSE 1002 inlet (high) assembly—1” above overflow Hose Bib connection Possible back 5-203.14 Hose bib vacuum ASSE 1011 Not allowed- no back siphon from breaker or 1052 pressure of system hose (high) pressure Water inlet Garbage Submerged 5-203.14 AVB 6” above flood rim ASSE 1001 NO valves-manual or Disposal inlet (high) solenoid- no back pressure of system pressure Overhead Spray rinse When sprayer 5-202.13 Maintain sprayer head ASSE 1020 OK-Sprayer head is with valve head below >1” above flood rim, or ASSE 1056 the valve flood rim (high) PVB 6” unit Sink Faucets Possible 5-202.13 Air-gap between faucet Minimum NA Dipper well water inlet submerged inlet & flood rim at 2X inlet distance 1” diameter Pressure toilet/urinal Submerged 5-203.14 AVB downstream of ASSE 1001 Not allowed- no back inlet (high) valve ASSE 1037 pressure of system pressurized pressure flushing devices Trough Urinal Cross- 5-203.14 AVB downstream of ASSE 1001 No- no back pressure connection valve ASSE 1037 of system pressure (high) pressurized flushing devices Automatic wear/pot Submerged 5-203.14 Provide AVB 6” above ASSE 1001 None downstream of washing machine inlet (high) highest elevation of AVB (AVB must be detergent spray upstream of chemical -
New Data and Multivariate Methods Transform E-Underwriting Businesspeople Often Describe Competition in Terms of Chess, and Rightly So
Stalemate to Checkmate: New Data and Multivariate Methods Transform E-underwriting Businesspeople often describe competition in terms of chess, and rightly so. It’s a game of strategy and skill, but not of ambiguous outcomes: Only two things can happen in a chess game – a checkmate or a stalemate. The analogy effectively captures the challenges confronting U.S. life insurers as carriers seek to Bruce Bosco expand in seemingly mature markets. Vice President Business Development Consider the stalemate: the point during a chess game in which the player is left with no legal move, AURA and the game ends in a draw. The same term could describe the state of the U.S. life insurance market, where carriers confront a coverage gap worth an estimated $16 trillion. While this vast pool of under-protected potential policyholders seems to represent a tremendous opportunity, on the whole it has remained stubbornly out of reach. After investing mightily in improving the purchasing experience, insurance leaders may understandably feel as if there are no moves left. Relax underwriting assessment any further, and carriers rightly fear that a streamlined sale today may lead to widening losses tomorrow. Until recently this stalemate seemed destined to continue indefinitely. To move from stalemate to checkmate, insurers must first understand that the rules of the game have changed. New Game, New Rules Today’s life insurance consumers are looking for a buying experience befitting the digital age. They want to make quick, convenient, and affordable purchases, but this expectation is often thwarted by onerous underwriting requirements. Thankfully, the combination of new data sources and automated underwriting technologies have enabled insurers to change the rules of the game. -
Backflow Prevention Devices
Examples of Backflow Prevention during Mixing of Agricultural Chemicals 1. What Is Backflow? Backflow occurs when water flows opposite to its normal direction and can lead to contamination of the original water supply. Backflow can occur when collecting water from a source (well, watercourse, etc.) to combine with agricultural chemicals in a sprayer tank. This can cause chemical contamination of the source water. 2. Preventing Backflow The following table describes examples of backflow prevention techniques: Option Description Advantage Disadvantage Costs/Availability Use Use an alternate tank to supply water to Complete Requires an additional step, Variable cost; the alternate separate the sprayer as opposed to filling directly backflow filling the alternate tank tank should be clean water tank from the well, watercourse, etc. Water is prevention before filling the sprayer tank pumped from the source into the water tank and moved to the mixing/ loading area, located an adequate distance from wells and surface water Anti- Install a permanent anti-backflow device Quick solution, Installation may be Price ranges from $100.00 to backflow on the water supply line to prevent the requires no complicated, some types are $800.00; can be purchased device potential for backflow of chemicals from monitoring or susceptible to damage from from plumbing supply stores the sprayer tank. Devices include: double additional debris or freezing or most hardware stores. check valve or hose vacuum break valve steps after installation Maintain an A permanently fixed air gap between the Requires no Requires some monitoring No cost air gap water supply line and the sprayer tank additional can be maintained. -
Water Distribution
CITY OF LONGMONT WATER DISTRIBUTION TABLE OF CONTENTS 500.00 MINIMUM DESIGN CRITERIA................................................................................... 1 500.01 GENERAL ..................................................................................................................... 1 500.02 DESIGN GUIDELINES................................................................................................. 1 500.03 PIPE SIZES..................................................................................................................... 1 500.04 SERVICE LINES............................................................................................................ 2 500.05 DEPTH ...........................................................................................................................2 500.06 ALIGNMENT ................................................................................................................ 2 500.07 GRADE .......................................................................................................................... 2 500.08 FUTURE CONNECTIONS ........................................................................................... 2 500.09 VALVE SPACING ........................................................................................................ 3 500.10 FIRE HYDRANT LOCATION...................................................................................... 3 500.11 FIRE LINES & FIRE HYDRANT LINES ....................................................................