Drinking Water Quality Report
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Total Organic Carbon (TOC) Guidance Manual
September 2002 RG-379 (Revised) Total Organic Carbon (TOC) Guidance Manual Water Supply Division printed on recycled paper TEXAS COMMISSION ON ENVIRONMENTAL QUALITY Total Organic Carbon (TOC) Guidance Manual Prepared by Water Supply Division RG-379 (Revised) September 2002 Robert J. Huston, Chairman R. B. “Ralph” Marquez, Commissioner Kathleen Hartnett White, Commissioner Jeffrey A. Saitas, Executive Director Authorization to use or reproduce any original material contained in this publication—that is, not obtained from other sources—is freely granted. The commission would appreciate acknowledgment. Copies of this publication are available for public use through the Texas State Library, other state depository libraries, and the TCEQ Library, in compli- ance with state depository law. For more information on TCEQ publications call 512/239-0028 or visit our Web site at: www.tceq.state.tx.us/publications Published and distributed by the Texas Commission on Environmental Quality PO Box 13087 Austin TX 78711-3087 The Texas Commission on Environmental Quality was formerly called the Texas Natural Resource Conservation Commission. The TCEQ is an equal opportunity/affirmative action employer. The agency does not allow discrimination on the basis of race, color, religion, national origin, sex, disability, age, sexual orientation or veteran status. In compliance with the Americans with Disabilities Act, this document may be requested in alternate formats by contacting the TCEQ at 512/239-0028, Fax 239-4488, or 1-800-RELAY-TX (TDD), or by writing -
Comprehensive Water System Plan (2011)
Executive Summary PURPOSE OF THE PLAN The City of Snohomish’s (City) water system is a major infrastructure, much of which is invisible to the people that receive water from it. The water system requires qualified staff to operate and maintain it, and an ongoing capital improvement program to replace old components to meet the requirements mandated by federal and state laws. The primary purpose of the City’s Comprehensive Water System Plan (WSP) is to identify and schedule water system improvements that correct existing system deficiencies and ensure a safe and reliable supply of water to current and future customers. This WSP complies with Washington State Department of Health (DOH) regulations under Washington Administrative Code (WAC) 246-290-100, which requires water purveyors to update their water system plans every six years. CHANGES SINCE THE LAST WSP The City’s last WSP was completed in 1994. The following changes have occurred since the last update that affect water system planning for the City. In response to the events of September 11, 2001, the United States Congress passed the Public Health Security and Bioterrorism Preparedness and Response Act of 2002 (H.R. 3448), which became effective June, 12, 2002. The act requires all public water systems serving a population of over 3,300 persons to prepare a water system Vulnerability Assessment Plan and update or prepare an Emergency Response Plan. The 2003 Municipal Water Law (HB1338), which became effective September 9, 2003, identifies additional elements related to water rights, system capacity, service area consistency and conservation that are required in all water system plans. -
Recommended Standards for Water Works 2007 Edition
Recommended Standards for Water Works 2007 Edition Policies for the Review and Approval of Plans and Specifications for Public Water Supplies A Report of the Water Supply Committee of the Great Lakes--Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers MEMBER STATES AND PROVINCE Illinois Indiana Iowa Michigan Minnesota Missouri New York Ohio Ontario Pennsylvania Wisconsin Published by: Health Research Inc., Health Education Services Division, P.O. Box 7126, Albany, NY 12224 (518)439-7286 www.hes.org Copyright © 2007 by the Great Lakes - Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers This book, or portions thereof, may be reproduced without permission from the author if proper credit is given. TABLE OF CONTENTS FOREWORD POLICY STATEMENT ON PRE-ENGINEERED WATER TREATMENT PLANTS POLICY STATEMENT ON AUTOMATED/UNATTENDED OPERATION OF SURFACE WATER TREATMENT PLANTS POLICY STATEMENT ON BAG AND CARTRIDGE FILTERS FOR PUBLIC WATER SUPPLIES POLICY STATEMENT ON ULTRA VIOLET LIGHT FOR TREATMENT OF PUBLIC WATER SUPPLIES POLICY STATEMENT ON INFRASTRUCTURE SECURITY FOR PUBLIC WATER SUPPLIES POLICY STATEMENT ON ARSENIC REMOVAL INTERIM STANDARD - NITRATE REMOVAL USING SULFATE SELECTIVE ANION EXCHANGE RESIN INTERIM STANDARD - USE OF CHLORAMINE DISINFECTANT FOR PUBLIC WATER SUPPLIES INTERIM STANDARD ON MEMBRANE TECHNOLOGIES FOR PUBLIC WATER SUPPLIES PART 1 - SUBMISSION OF PLANS 1.0 GENERAL 1.1 ENGINEER’S REPORT 1.1.1 General Information 1.1.2 Extent of water works -
Dissolved Organic Carbon (DOC) (For Private Water and Health Regulated Public Water Supplies)
Dissolved Organic Carbon (DOC) (For Private Water and Health Regulated Public Water Supplies) What Is Dissolved Organic Carbon? Dissolved organic carbon (DOC) is a general description of the organic material dissolved in water. Organic carbon occurs as the result of decomposition of plant or animal material. Organic carbon present in soil or water bodies may then dissolve when contacted by water. This dissolved organic carbon moves with both surface water and ground water. Acknowledgement: How Does Dissolved Organic Carbon Get Into Water? Organic material (including carbon) results from decomposition of plants or animals. This Fact Sheet is one of a Once this decomposed organic material contacts water it may partially dissolve. series developed by an Interagency Committee with representatives from How Does Dissolved Organic Carbon Affect My Health? Saskatchewan Ministry of DOC does not pose health risk itself but may become potentially harmful when in Health, Regional Health combination with other aspects of your water. When water with high DOC is Authorities, Saskatchewan chlorinated, harmful byproducts called trihalomethanes may be produced (see Watershed Authority, SaskH2O factsheet on trihalomethanes). Trihalomethanes may have long-term Saskatchewan Ministry of effects on health and they should be considered when chlorinating drinking water Environment, Saskatchewan Ministry of Agriculture, high in DOC. According to Health Canada, the benefits of chlorinating drinking Agriculture and Agri-Food water are much greater than the health risks associated with chlorination by- Canada – PFRA and Health products such as trihalomethanes Canada. DOC can interfere with the effectiveness of disinfection processes such as Responsibility for chlorination, ultraviolet and ozone sterilization. DOC can also promote the growth of interpretation of the content of microorganisms by providing a food source. -
Turbidity Analysis for Oregon Public Water Systems Water Quality in Coast Range Drinking Water Source Areas June 2010
Report Turbidity Analysis for Oregon Public Water Systems Water Quality in Coast Range Drinking Water Source Areas June 2010 Last Updated: 06/29/10 By: Joshua Seeds DEQ 09-WQ-024 This report prepared by: Oregon Department of Environmental Quality 811 SW 6th Avenue Portland, OR 97204 1-800-452-4011 Contact: Joshua Seeds (503) 229-5081 [email protected] Turbidity Analysis for Oregon Public Water Systems Table of Contents Table of Contents .......................................................................................... i List of Figures .............................................................................................. iii List of Tables ............................................................................................... iiv List of Maps ................................................................................................. iiv Executive Summary ..................................................................................... 1 Introduction .................................................................................................. 2 Applicable Turbidity Standards for Water Quality ............................................... 2 Public Water System Evaluations....................................................................... 3 Methods .......................................................................................................................... 5 Definitions of terms........................................................................................................ -
Sultan River, Wa
Hydropower Project Summary SULTAN RIVER, WA HENRY M JACKSON HYDROELECTRIC PROJECT (P-2157) Photo Credit: Snohomish County Public Utility District This summary was produced by the Hydropower Reform Coalition and River Management Society Sultan River, Washington SULTAN RIVER, WA HENRY M JACKSON HYDROELECTRIC PROJECT (P-2157) DESCRIPTION: The Jackson Project is located on the Sultan River in northwestern Washington. The project’s authorized capacity is 111.8 megawatts (MW). The project is located on the Sultan River, 20 miles east of the City of Everett, Washington, in Snohomish County. The project occupies 10.9 acres of the Mount Baker-Snoqualmie National Forest administered by the U.S. Forest Service (Forest Service). Downstream of the project’s Culmback dam at Spada Lake, the Sultan River flows through a deep forested gorge for nearly 14 miles. The project powerhouse is located near the downstream end of the gorge. The District (Public Utility District No. 1 of Snohomish County) currently operates the project to satisfy the City of Everett’s municipal water supply needs, protect aquatic resources, maintain Spada lake levels for summer recreation, and generate electricity. The new license requires additional measures to protect and enhance water quality, fish, wildlife, recreation, and cultural resources. The twelve signatories to the Settlement Agreement are the District, National Marine Fisheries Service (NMFS), Forest Service; U.S. Fish and Wildlife Service (FWS), U.S. National Park Service, Washington Department of Fish and Wildlife (Washington DFW), Washington Department of Ecology (Ecology), Tulalip Tribes of Washington (Tulalip Tribes), Snohomish County, Washington; City of Everett; City of Sultan; and American Whitewater. -
Publication No. 17: Ozone Treatment of Private Drinking Water Systems
PRIVATE DRINKING WATER IN CONNECTICUT Publication Date: April 2009 Publication No. 17: Ozone Treatment of Private Drinking Water Systems Effective Against: Pathogenic (disease-causing) organisms including bacteria and viruses, phenols (aromatic organic compounds), some color, taste and odor problems, iron, manganese, and turbidity. Not Effective Against: Large cysts and some other large organisms resulting from possible or probable sewage contamination, inorganic chemicals, and heavy metals. How Ozone (O3) Treatment Works Ozone is a chemical form of pure oxygen. Like chlorine, ozone is a strong oxidizing agent and is used in much the same way to kill disease-causing bacteria and viruses. It is effective against most amoebic cysts, and destroys bacteria and some aromatic organic compounds (such as phenols). Ozone may not kill large cysts and some other large organisms, so these should be eliminated by filtration or other procedures prior to ozone treatment. Ozone is effective in eliminating or controlling color, taste, and odor problems. It also oxidizes iron and manganese. Ozone treatment units are installed as point-of-use treatment systems. Raw water enters one opening and treated water emerges from another. Inside the treatment unit, ozone is produced by an electrical corona discharge or ultraviolet irradiation of dry air or oxygen. The ozone is mixed with the water whenever the water pump is running. Ozone generation units require a system to clean and remove the humidity from the air. For proper disinfection the water to be treated must have negligible color and turbidity levels. The system requires routine maintenance and an ozone treatment system can be very energy consumptive. -
Raw Water Irrigation System Master Plan
TOWN OF FIRESTONE RAW WATER IRRIGATION SYSTEM MASTER PLAN MARCH 2010 COLORADO CIVIL GROUP, INC. Raw Water Irrigation System Master Plan March 2010 Table of Contents 1 Introduction ............................................................................................................................................................................................. 1 1.1 Project Goals ................................................................................................................................................................................... 1 1.2 Scope of Work ................................................................................................................................................................................ 1 1.2.1 Existing Master Plan Evaluation ............................................................................................................... 1 1.2.2 Identifying Potential Areas for Raw Water Irrigation ............................................................................... 1 1.2.3 Irrigation Ditch Evaluation ........................................................................................................................ 1 1.2.4 Hydraulic Analysis and Calculations ......................................................................................................... 2 1.2.5 Raw Water System Modeling ................................................................................................................... 2 1.2.6 Raw Water Irrigation System Master -
21 Reverse Osmosis Treatment of PDWS 03-09
PRIVATE DRINKING WATER IN CONNECTICUT Publication Date: March 2009 Publication No. 21: Reverse Osmosis Treatment of Private Drinking Water Systems Effective Against: inorganic contaminants such as: dissolved salts of sodium, dissolved (ferrous) iron, nitrate, lead, fluoride, sulfate, potassium, manganese, aluminum, silica, chloride, total dissolved solids, chromium, and orthophosphate. Also effective in removing some detergents, some taste, color and odor-producing chemicals, certain organic contaminants, uranium, and some pesticides. Not Effective Against: dissolved gases, most volatile and semi-volatile organic contaminants including some pesticides and solvents. Alone, reverse osmosis (RO) units are not recommended for treatment of bacteria and other microscopic organisms. How Reverse Osmosis Works A complete reverse osmosis system consists of a RO module, a storage tank, and a separate faucet. The module contains a semi-permeable membrane that allows water to selectively pass through and collect in the storage tank. The contaminants being treated by the RO unit are rejected and then washed off the membrane into a waste stream. It is not practical to treat all water entering a home with an RO system because about 75 percent of the water introduced is wasted. Thus, four gallons of raw water into the system produce about one gallon of treated water. This treated water comes out much slower than water from a regular tap, so a tank is used to store the treated water. The treated water is often used only for drinking and cooking. Each manufacturer’s RO units differ, but the time needed to produce one gallon of water ranges from 2-78 hours. The volume of wastewater produced by RO systems varies by make and model. -
Spadarecsites 519 Web.Pdf
The Sultan Basin has a rich history as a public resource. Loggers, prospectors, fishermen, hikers, and mountain climbers have all made extensive use of the basin over the past century. Today, the basin also supplies 75 percent Spada Lake Reservoir is the principal source of drinking water for 75 percent of Snohomish County’s population. As a result, mainte- of Snohomish County with drinking water and provides nance of high water quality is of primary importance. Water quality clean, renewable electricity. depends upon responsible public observation of the following: WATER QUALITY REGULATIONS An active program to enhance fish and wildlife habitat in 1. Boat launching only at designated locations. the area is an important benefit of the project. With the 2. No combustion engines allowed on Spada Lake Reservoir. 3. Licensed motorized vehicle operation on improved roads only. completion of multiple recreation sites in the basin, the 4. Picnicking only at approved sites. SPADA LAKE RESERVOIR RECREATIONAL SITES public has improved access to the reservoir and the Sultan 5. Pets must remain in vehicles or be leashed at all times. River for fishing, picnicking, hiking, and other activities. 6. No overnight camping. 7. No swimming, wading and/or water-contact activities in creeks or Spada Lake Reservoir. he Henry M. Jackson Hydroelectric Project was Most recreation sites were opened for public use in the sum- 8. No inflatable devices on Spada Lake Reservoir. constructed and is operated by Snohomish County mer of 1991 with additional sites added in 2013. These IMPORTANT T PUD under a license granted by the Federal Energy facilities provide: access for fishing and boating, picnic ar- All sources of water within the basin are untreated, and consumption Regulatory Commission (Project #2157) in 2011. -
REVIEW of TURBIDITY: Information for Regulators and Water Suppliers
WHO/FWC/WSH/17.01 WATER QUALITY AND HEALTH - TECHNICAL BRIEF TECHNICAL REVIEW OF TURBIDITY: Information for regulators and water suppliers 1. Summary This technical brief provides information on the uses and significance of turbidity in drinking-water and is intended for regulators and operators of drinking-water supplies. Turbidity is an extremely useful indicator that can yield valuable information quickly, relatively cheaply and on an ongoing basis. Measurement of turbidity is applicable in a variety of settings, from low-resource small systems all the way through to large and sophisticated water treatment plants. Turbidity, which is caused by suspended chemical and biological particles, can have both water safety and aesthetic implications for drinking-water supplies. Turbidity itself does not always represent a direct risk to public health; however, it can indicate the presence of pathogenic microorganisms and be an effective indicator of hazardous events throughout the water supply system, from catchment to point of use. For example, high turbidity in source waters can harbour microbial pathogens, which can be attached to particles and impair disinfection; high turbidity in filtered water can indicate poor removal of pathogens; and an increase in turbidity in distribution systems can indicate sloughing of biofilms and oxide scales or ingress of contaminants through faults such as mains breaks. Turbidity can be easily, accurately and rapidly measured, and is commonly used for operational monitoring of control measures included in water safety plans (WSPs), the recommended approach to managing drinking-water quality in the WHO Guidelines for Drinking-water Quality (WHO, 2017). It can be used as a basis for choosing between alternative source waters and for assessing the performance of a number of control measures, including coagulation and clarification, filtration, disinfection and management of distribution systems. -
Guidelines for Drinking-Water Quality FIRST ADDENDUM to THIRD EDITION Volume 1 Recommendations WHO Library Cataloguing-In-Publication Data World Health Organization
Guidelines for Drinking-water Quality FIRST ADDENDUM TO THIRD EDITION Volume 1 Recommendations WHO Library Cataloguing-in-Publication Data World Health Organization. Guidelines for drinking-water quality [electronic resource] : incorporating first addendum. Vol. 1, Recommendations. – 3rd ed. Electronic version for the Web. 1.Potable water – standards. 2.Water – standards. 3.Water quality – standards. 4.Guidelines. I. Title. ISBN 92 4 154696 4 (NLM classification: WA 675) © 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 addressed 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 expres- sion 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 similar nature that are not mentioned. Errors and omissions excepted, the names of proprietary products are distinguished by initial capital letters.