Effluent treatment plant operation manual

In process waste material should not be kept more than 24 hrs. 2. I t is used effluent treatment plant operation manual in many processes of Industry. SECTION - PURPOSE & GENERAL INFORMATION PURPOSE: This Operational Guide is intended to describe Sewage Treatment Operation, Plant Start-Up Procedures. . Testing of the parameters like pH, COD, BOD, Suspended Solids (SS), Total Dissolved Solids (TDS), Chloride, Sulphates, Oil and grease of untreated and treated effluent by external agency once or twice in the month. appendix f effluent treatment plant process flow diagram waste from factory aeration basin (main) balance tank no 1 daf pre-treatment sump balance tank no 2 aeration basin no 2 (standby) settling tank no 1 clarifier settling tank no 2 clarifier picket fence thickener sand filter sump outfall sump sand filter and weir centrifuge dry sludge skip solid removed to daf skip.

txt) or read online for free. The operation and maintenance manual shall be amended whenever there is a change in the treatment works effluent treatment plant operation manual design, construction, effluent treatment plant operation manual operations, or maintenance which substantially changes the treatment effluent treatment plant operation manual works operations and maintenance procedures. Consider the following issues carefully to get best out of your STP Sewage comprises of liquid and solids. Cooling and Mixing: In this. Depending on the industry, industrial wastewater carries several materialslike oils, grease, and also toxic materials like cyanide Etc. OPERATION, MAINTENANCE AND MANAGEMENT OF WASTEWATER TREATMENT FACILITIES A Bibliography of Technical Documents by Dottie Himes Program Analyst (WH) EPA Project Officer Lehn J. Plant Information—Summary 8.

Discharge Monitoring Report (DMR) Address and Signatory Authority 4. A current copy may be obtained by contacting the company office. • Excessive noise from effluent treatment plant operation manual process or treatment equipment. Different environment saving organizations are trying to protect the environment from the harmful effect of effluent treatment plant operation manual the effluent. 2) Primary – Removal of floating & settable such as Suspended solids, Organic Matter 3) Secondary – Removal of Biodegradable organic matter (BOD). Determine when the units went out of service, the type of failure, and when they will be put back in service.

Sewage treatment is the process of removing contaminants from municipal wastewater, containing mainly household sewage plus some industrial [HOST]al, chemical, and biological processes are used to remove contaminants and produce treated wastewater (or treated effluent) that is safe enough for release into the environment. The Þrst intent is to consolidate the information and experience in waterworks and wastewater treatment plant operations that have evolved as a result of technological advances in the Þeld, and as a result of the concepts effluent treatment plant operation manual and policies. Effluents from food or beverage factories carries degradable organic pollutants and therefore specific wastewater treatment technology called ETP is required. Officer/Executive-Engineering shall be responsible for implementation of the . Stand-alone manual or supplement / inclusion to an existing manual B. extend or upgrade Waste Water Treatment Plants (WWTP) for the Department, as to their responsibility towards providing and submitting an acceptable, appropriate and inclusive Operation & Maintenance (O & M) manual for that particular plant, on completion of the project. Soil Monthly Effluent Report 7.

However, a need was felt to revise and update the earlier manual taking into consideration the advancement in technology. Effluent Treatment Plant. Plant type iii. Manual planta de tratamiento que tiene tecnología MBRR/5(13). Effluent Treatment Plant or ETP is one type of waste water treatment method which is particularly designed to purify industrial waste water for its reuse and it’s aim is to release safe water to environment from the harmful effect caused by the effluent. Any comments or suggestions on improving this manual or updating information pertaining to the safe operation of equipment is welcome and may be incorporated into. Design of effluent treatment plant effluent treatment plant operation manual is to treat non-hazardous industrial waste water and should focus on cost-effective, minimal maintenance and requires minimal manpower etc.

Project description i. Stand-alone manual or supplement / inclusion to an existing manual B. Choosing an Effluent Treatment Plant 23 effluent treatment plant operation manual Biological Treatment 23 Physico-Chemical Treatment 24 Physico-Chemical and Biological Treatment EFFLUENT TREATMENT PLANT. The manual effluent treatment plant operation manual is a revised version of the earlier one, which was developed in and was widely used by field engineers engaged in sewerage and sewage treatment. Proper operation of the plant or process will ensure that the wastewater is treated in compliance with the specific conditions established for each treatment facility. e.

, date, and sign. The manual is a revised version of the earlier one, which was developed in and was widely used by field engineers engaged in sewerage and sewage treatment. Nov 25, · Effects on Biology Oxidation ponds, which are aerobic bodies of water usually 1–2 meters in depth that receive effluent from sedimentation tanks or other forms of primary treatment. Pumping Machinery • To run the machinery in a way so as to have free fall from invert of • The effluent end of the aeration tank should have a effluent treatment plant operation manual dissolved oxygen level of at least • Industrial effluent is being received at the Sewage Treatment Plants for which no. Corrotech Effluent Treatment Plant is designed to treat spent acid and wash water combined.

Wastewater Technology Fact Sheet Sequencing Batch Reactors DESCRIPTION The sequencing batch reactor (SBR) effluent treatment plant operation manual is a fill-and-draw activated sludge system for wastewater treatment. manual to check the performance and efficiency of the industrial wastewater treatment plants. It is a responsibility of a process engineer working in Process Design field to bring out the better manual which helps the operating effluent treatment plant operation manual team in start up, effluent treatment plant operation manual shutdown, troubleshooting and optimization of chemical plant. Our company is recognized as one of the leading manufacturer and supplier of high quality Effluent Treatment Plant (ETP), Sewage Treatment Plant (STP), and Waste Water Treatment Plant (WTP) according to Pollution Control board.

The manual is a guide for putting into initial operation a new municipal wastewater treatment plant, a new addition to an existing plant, or a change in the mode of a plant's operation.C. This plant is specially designed in order to treat the effluents that are coming from different areas of the plant.

We often forget the old axiom: someone must build it, but once built, someone must operate it. We offer Consultancy and Project execution for Sewage Treatment Plants (STP) with latest technologies like FAB, MBBR (Moving Bed Bio Reactor) or SAFF with automatic operation or semi-automatic operation or manual operation as per customers’ requirements and as per site conditions and the area availability. Common Effluent Treatment Plant is treating effluents by means of a collective effort mainly for a cluster of small scale industrial units. Greytown Wastewater Treatment Plant - Operation & Maintenance Manual Working Draft August AWT WATER, A MEMBER OF THE MOTT MACDONALD GROUP.CETP Common Effluent Treatment Plant CFE Consent for Establishment COD Chemical Oxygen Demand CRZ Coastal Regulatory Zone CSNL Cashew Nut Shell Liquid DO Dissolved Oxygen EAC Expert Appraisal Committee EBM Environmental Baseline Monitoring EcE Economic-cum-Environmental ECI Environmental Condition Indicators. TS - Operations and Maintenance Manuals SA Water - Technical Standard Revision - Document ID: SAWS-ENG Page 10 of 38 For Official Use Only Uncontrolled when printed or downloaded 1 Document Requirements General The O&M Manual shall give a clear, comprehensive description of all plant and systems provided. An initial Plan of Operation, identified as the Central Facilities Area (CFA) Sewage Treatment Plant (STP) Operation and Maintenance Manual (OPE-SP) was submitted to the Idaho Department of Environmental Quality effluent treatment plant operation manual in November Wastewater Treatment Plant O&M Manual Checklist for New Plants or Upgrades Yes, No or N/A Table of Contents Chapter 1 Introduction A. appendix f effluent treatment plant process flow diagram waste from factory aeration basin (main) balance tank no 1 daf pre-treatment sump balance tank no 2 aeration basin no 2 (standby) settling tank no 1 clarifier settling tank no 2 clarifier picket fence thickener sand filter sump outfall sump sand filter and weir centrifuge dry sludge.

g. iv.A by-product of sewage Types: List of wastewater treatment technologies . Standards for On-Site Wastewater Treatment Systems, and 19 CSR , Operation of Onsite Wastewater Treatment Systems, the manufacturer’s specifications, and the designer’s OPERATION and MAINTENANCE manual. In this system, wastewater is added to a single “batch” reactor, treated to remove undesirable components, and then discharged.

This document specifies the equipment included with each effluent treatment plant operation manual assembly, as well as the installation and operation procedures where applicable. This sheet is used to estimate your wastewater treatment plant score for appropriate operating experience. • Samples are not being tested in laboratory daily. This document is intended to be a resouo WWTP personnel rce tregarding.

on-site. This is a first attempt at developing a Handbook specifically for the operation of drinking water treatment plants to match the Handbook for the Operation of Wastewater Treatment Works. Industrial effluents contain various materials, depending on the industry. This type of treatment depends primarily upon the use of air that is effluent treatment plant operation manual introduced to the wastewater from your home as soon as it enters the treatment unit. Manufacturer of EFFLUENT TREATMENT PLANT - Annual Maintenance Service For ETP & STP (AMC), Common Effluent Treatment Plant For Slaughter Houses, Containerized ETP for Hosiery Industry and ETP For Cement Industry offered by M/S K Location: Saleh Nagar, /2 M, Ruchi Khand- 2, Sharda Nagar, , Lucknow. TECHNICAL EIA GUIDANCE MANUAL FOR COMMON EFFLUENT TREATMENT PLANTS by IL&FS Ecosmart Limited Hyderabad September PROJECT TEAM Treated Effluent Quality of Common Effluent Treatment Plant Concentration in . Facility Permit and Permit Modifications 2.

Feb 16,  · Effluent Treatment Plant: Design, Operation And Analysis Of Waste Water 15Table 1: Wastewater Treatment Levels and Processes Treatment Level Description ProcessPreliminary Removal of large solids such as rags, Physical sticks, grit and grease that may damage equipment or result in operational problemsPrimary Removal of floating and . Oct 27,  · The effluent treatment plant operation manual Effluent treatment plants (ETP) are used for the removal of high amounts of organic compounds, debris, dirt, grit, pollution, toxic, non-toxic materials, polymers etc. sewers or drainage pipes vested in or controlled or used by a sanitary authority for the treatment or disposal of any sewage or other effluent treatment plant operation manual effluent to any wcters The purpose of this manual is to provide guidance in the selection, operation and maintenance of small wastewater treatment systems (i. Our company is recognized as one of the leading manufacturer and supplier of high quality Effluent Treatment Plant (ETP), Sewage Treatment Plant (STP), and Waste Water Treatment Plant (WTP) according to Pollution Control board. optimize treatment to obtain the highest quality effluent possible as well as to demonstrate that the effluent is indeed within the set standards. The treatment plan must include proper treatment for both liquid and solids.

Purpose of Manual i. WASTEWATER TREATMENT FACILITY OPERATION AND MAINTENANCE (OM) MANUAL GUIDELINES Page 2 Water Quality – Wastewater Technical Review and Guidance Water/Wastewater/#, FEBRUARY B) Final OM manual -The final manual will be reviewed for content and completeness and if found satisfactory will be approved as a final O . Responsibility: Concerned Technician/Operator shall be responsible for Operating the ETP as per this SOP.

Also design of effluent treatment plan is highly site and industry specific. One can obtain this Effluent Treatment Plant from us at nominal rate. From the plant=s discharge pipe, the final effluent passes through a. One can obtain this Effluent Treatment Plant from us at nominal rate. Material gathered from individ- uals experienced in the preparation of plant O&M manuals and data compiled from existing O&M manuals are also included in this work. extend or upgrade Waste Water Treatment Plants (WWTP) for the Department, as to their responsibility towards providing and submitting an acceptable, appropriate and inclusive Operation & Maintenance (O & M) manual for that particular plant, on completion of the project.

If your plant has not been scored, there is a "Scoring Sheet" located in the Forms section, starting on page 16 in this manual. This operation and maintenance manual outlines the designed. May 22,  · Now, I like to give a short description about the sequence of operation in effluent treatment plant.

e. In order to do that the inspector should be familiar with the different types of the wastewater treatment operations and processes commonly applied in Egypt. 30m3/hour with COD of ppm, and pH of Do you plan to increase production? plant; further investi gation of spills may be warranted. Proper disposal mechanism for treated solids and liquid is just as.

If either the septic tanks or wetlands are not maintained, they will be unable to function as intended, causing stress to the downstream components and possible failure. TDS is referred to as the total amount of mobile charged ions, including minerals, salts or metals dissolved in a given volume of water, and is expressed in units of mg per unit volume of water (mg/L), or as parts per million (ppm). Scope:This Standard Operating Procedure is applicable to the formulation plant of Pharmaceutical company.

It may include solids, oxygen demanding substances, nutrients, pathogens, and toxins. New plant or upgraded components (list individual components if upgrade) ii. Here primary filtration is performed to remove solid waste particles. 1. Effluent Treatment Plant: 1) Preliminary – Removal of Solids, Oil & Grease.

The initiatives of the Water Research Commission (WRC) and the Water Institute of Southern Africa (WISA) are recognised to have the Handbook developed. The treatment system shall provide primary, secondary, and tertiary treatment of the wastewater flow prior to discharge. Our Paint Industry Effluent Treatment Plant is highly preferred in the market because of its sturdy construction, high performance and long working life.

Operation & Maintenance Manual Table of Contents Introduction Section Plant Routine Inspection and Service Instructions Section Operating Instructions Section Teflon Diffuser Inspection Section Plant Troubleshooting Guide Section Hydro-Action® AP-Series Plant Specifications Section Process Description Section Safety. Wastewater recycling coming from different areas of the plant. from industrial effluent.S. Officer/Executive-Engineering effluent treatment plant operation manual shall be responsible for implementation of the procedure as per this SOP. TCEQ, EPA, and Emergency Contacts 3. Experienced operators wrote the material for operating personnel who have not had the benefit of specialized education in wastewater treatment facility operation.

Start studying Operation of Wastewater Treatment Plants, Volume I, 7th Edition. 12 | The STP Guide – Design, Operation and Maintenance | 13 Preface Over five years ago, the Karnataka State Pollution Control Board mandated that Sewage Treatment Plants be built and operated in individual residential complexes having fifty or more dwellings, or generating 50 m3/day or more of sewage. This generic presentation utilizes my extended number of years of experience working with Wastewater Treatment Plant - Develop an O&M . Treatment of the domestic wastewater shall be accomplished by the extended aeration process with non-mechanical flow equalization, pretreatment of the influent, and filtration of the final effluent. • Vital treatment units out of service for repairs. Also effluent treatment plant operation manual design of effluent treatment plan is highly site and industry specific.

Industrial Waste. Wastewater treatment plant design is primary process in which untreated waste water is analysed and based on requirement of uses of treated effluent plant is designed. The effluent treatment plant is designed to treat the effluent i. Our Paint Industry Effluent Treatment Plant is highly preferred in effluent treatment plant operation manual the market because of its sturdy construction, high performance and long working life. Responsibility: Concerned Technician/Operator shall be responsible for Operating the ETP as per this SOP.

Purpose of Manual i. Feb 16, · Effluent Treatment Plant: Design, Operation And Analysis Of Waste Water 18create fine bubbles that attach to floc resulting in a floating mass of concentrated [HOST] floating floc blanket is removed from the surface and clarified water is withdrawnfrom the bottom of the DAF tank Biological Unit ProcessesBiological treatment is an important and integral part of any wastewater treatment plantthat treats wastewater from either municipality or industry having soluble organicimpurities or a. This plant is specially designed in order to treat the effluents that are coming from different areas of the plant. Although the pH may meet the overall plant specification, this approach often fails to provide sufficiently accurate control for other parts of the process. The Bioclere is a modification of the classic trickling filter.

5/5(5). This trend means that in effluent treatment plant operation manual the future it is likely that Cited by: 3. the plant for treatment, nor should plant modifications be made to it’s design and effluent treatment plant operation manual operation without approval and authorization by the Owner and FDEP. Apr 17,  · Treatment Plant - Develop an effluent treatment plant operation manual O&M Manual. OPERATION AND MAINTENANCE MANUAL FOR SEWAGE TREATMENT PLANT PREPARED FOR Gore Developments Limited 2c Braemar Ave, This operations and maintenance manual describes the plant treatment requirements, the operations of the various treatment processes, equipment Check the chlorine residual levels in the effluent daily and, as necessary. Handbook of Water and Wastewater Treatment Plant Operations, the intent of the author is twofold. CHECKLIST FOR SEWAGE TREATMENT PLANT (STP) Are you planning for a sewage treatment plant? Effluent Treatment Plant or ETP is one type of waste water treatment method which is particularly designed to purify industrial waste water for its reuse and it’s aim effluent treatment plant operation manual is to release safe water to environment from the harmful effect caused by the effluent.

Wastewater first enters the pr e-treatment effluent treatment plant operation manual tank compartment of the plant, then gravity flows through a 4" SDR 35 PVC inlet to the aeration mixing zone. effluent treatment plant operation manual 2. Most municipal wastewater treatment plants have been scored. ETP Operation/Maintenance Kemflw is well known entity established in the year , head office at Delhi, India. A number of associations of Industries are effluent treatment plant operation manual treating their effluent by combined system. • Consent to operate has not been obtained from Haryana State Pollution Control Board. ONSITEIn accordance with Missouri law, WASTEWATER TREATMENT SYSTEMS must be. Wastewater received by the treatment facility is a complex mixture of largely unknown substances which must not be released into the environment.

Greytown Wastewater Treatment Plant - Operation & Maintenance Manual Working Draft August AWT WATER, A MEMBER OF THE MOTT MACDONALD [HOST] 1, 23 UNION STREET, AUCKLAND M:\Website management\Greytown WWPT\Application documents\_App7a_MM_GWWTP Operations and Maintenance [HOST] INTRODUCTION Refer to Section 2 of this manual to review the treatment equipment supplied by Aquapoint. Primary Filtration: It is the first stage of effluent treatment plant, where effluent is come from weaving, dyeing, printing or finishing unit. Project description i. The operation and maintenance manual shall be made available for inspection upon request by an authorized representative of the Department. ETP Operation/Maintenance. New plant or upgraded components (list individual components if upgrade) ii.

This manual was prepared by the MDNRE Operator Training and Certification Unit as a. Kemflw is well known entity established in the year , head office at Delhi, India. May 22, · Effluent Treatment Plant (ETP) is essential to purify the waste water which is come from different types of manufacturing industry like textile, ternary, dyes and chemical manufacturing industry, pharmaceuticals etc. Manufacturer of Sewage & Effluent Treatment Plants - Effluent Treatment Plant, STP effluent treatment plant operation manual (Sewage Treatment Plants), Sewage Treatment Plants and Wastewater Treatment Plants offered by Green Aqua Enviro Projects Private Limited, Hyderabad, Telangana. Treatment Methods 15 Physical Unit effluent treatment plant operation manual Operations 16 Chemical Unit Processes 17 Biological Unit Processes 18 4.

for population equivalents between 10 - ). LEVEL 1, 23 UNION STREET, AUCKLAND M:\Website management\Greytown WWPT\Application documents\_App7a_MM_GWWTP Operations and Maintenance [HOST] ND. gallons. This document and WWTP O&M Assessment Formare intended to provide wastewater treatment plant (WWTP) system personnel with tools to evaluate and improve the accuracy and completeness of the facility’s Operation & Maintenance (O&M) Manual. BIOLOGICAL TREATMENT SYSTEM Congratulations on your purchase of a Bioclerebiological treatment system. Activated Sludge Manual wastewater treatment plant operator has a very difficult task. Check out on You Tube for better idea of how it works.

We offer design, construction & up gradation of Common effluent treatment plant. Objective:To lay down a procedure for Operation of Effluent Treatment Plant. CHECKLIST FOR SEWAGE TREATMENT PLANT (STP) 7 Have you seen a filter press in operation? it is about operations and is designed for the operator.

This Operation and Maintenance Manual and Preventative Maintenance Program Plan (Manual) for the Midwest Plant’s Wastewater Treatment Facilities is intended to satisfy the requirements set forth in the Consent Decree dated April 2, This document also supersedes and replaces. used in all type of industry.. Some of the information included was extracted from the appendix of the "Federal Guidelines for Design, Operation and Maintenance of Wastewater Treatment Facilities", (). • Industrial effluent is being received at the Sewage Treatment Plants for which no correspondence being made with Haryana State Pollution Control Board. The system aims to control the pH, iron content, total suspended solids, oil, grease, chemical oxygen demand (COD), biological oxygen demand (BOD). • Good housekeeping is an important aspect of plant operation. OPERATION & MAINTENANCE MANUAL FOR EFFLUENT TREATMENT PLANT - Free download as PDF File .

Process-Control Tests 5. A effluent treatment plant operation manual manual entitled Operation of Wastewater Treatment Plants was developed for use by individual or group study. Operation & Maintenance PROCESS DISCRIPTION: The SOLAR AIR single family wastewater treatment plant effluent treatment plant operation manual is an extended aeration activated sludge process.

Additional conditions imposed among. However, a need was felt to revise and update the earlier manual taking into consideration the advancement in technology. Water is one of the most important components. It’s operation is messy – choose other options as we may not get 1 Is the STP panel manual?

pdf), Text File . Operation-and-Maintenance Manual Contents 1. Environmental Protection Agency Washington, D.

The mixed liquid next enters the clarifier compar tment and continues to flow upward to the discharge pipe. Startup and Operating Procedures 9. This document is intended to cover Wastewater Treatment Plant - Develop an O&M Manual. What chemicals does it contain? This manual is consistently updated to cover areas relating to the safe operation of wastewater treatment plants. Effluent Treatment Plant.

Objective:To lay down a procedure for Operation of Effluent Treatment Plant. Manual panels are designed for effluent treatment plant operation manual 24 X 7 operation only. It may be used for washing, cooling, Heat Exchanging, condensing the steam etc. Thus, the logical. effluent treatment plant operation manual 4) Tertiary – Removal of residual suspended solids, Dissolved solids. Example Wastewater Treatment Plant Laboratory Quality effluent treatment plant operation manual Manual is designed to provide an example of the effluent treatment plant operation manual minimum documentation needed to fulfill the requirements of NR This manual is not designed to be a complete guidance document for commercial laboratories, as it is written based on the analytical testing requirements associated with effluent treatment plant operation manual small.

Operation & Maintenance PROCESS DISCRIPTION: The effluent treatment plant operation manual SOLAR AIR single family wastewater treatment plant is an extended aeration activated sludge process. The final score will be determined by the NYSDEC. in the manufacturing area and Handed over to the EHS person. Effluent Treatment Plant. WASTEWATER TREATMENT FACILITY OPERATION AND MAINTENANCE (OM) MANUAL GUIDELINES Page 2 Water Quality – Wastewater Technical Review and Guidance Water/Wastewater/#, FEBRUARY B) Final OM manual -The final manual will be reviewed for content and effluent treatment plant operation manual completeness and if found satisfactory will be approved as a final O & M manual. This effluent contains several pollutants, which can be removed with the help of an effluent treatment.

The remainder is pumped to the Greenfield Wastewater Treatment Plant for final treatment and disposal. 3. control pH in industrial effluent treatment plants (Figure 3).

Learn vocabulary, terms, and more with flashcards, games, and other study tools. The laboratory, of course, is essential to the operator in providing the data to meet these two goals. Wastewater Treatment Plant O&M Manual Checklist for New Plants or Upgrades Yes, No or N/A Table of Contents Chapter 1 Introduction A. International pressure for effluent treatment is also increasing and many international buyers are now showing more concern over whether or not textiles are produced in an environmentally friendly way. It is the operation of fiitfl that concerns us here. This type of treatment depends primarily upon the use of air that is introduced to the wastewater from your home as soon as it enters the treatment effluent treatment plant operation manual unit. Planning an Effluent Treatment Plant 11 Factors to Consider 11 3. Dominated by algae Polishing ponds are similar to oxidation ponds but receive effluent from an oxidation pond or from a plant with an extended mechanical.

At what concentrations? Plant type iii. Several excellent texts have been written on water and wastewater treatment plant operations. Transfer all wastage which was poured into the container to ETP (Effluent Treatment Plant) with the label mentioning the area, type of wastage, qty. Trickling filters have been used for over one hundred years for the treatment of wastewater due to their reliability and simplicity of operation. Monthly Effluent Report 6.

Choosing an Effluent Treatment Plant What volume of effluent do you have? Apr 30,  · Industrial wastewater treatment covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re-use. While the overall process may only require effluent with pH of 5–9, far tighter pH control effluent treatment plant operation manual (± pH value) may be crucial for. The ETP plants use evaporation and drying methods.e. Different waste water has different characteristics which pollute the water. Effluent treatment effluent treatment plant operation manual plant operation and maintenance to be carried out by external agencies.

T his is another in a series of educational articles on water/wastewater. Oct 25,  · Chemical Plant Operating Manual is a guide for all the engineers who is involved in successfully operating the chemical plant. Will this increase the amount of effluent to be treated?

Potter \ May, Prepared for Municipal Operations Branch Office of Water Program Operations U.


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