10 States Standards - Recommended Standards for …

1 Recommended Standards . for WASTEWATER FACILITIES. POLICIES FOR THE DESIGN, REVIEW, AND APPROVAL OF PLANS AND. SPECIFICATIONS. FOR WASTEWATER COLLECTION AND TREATMENT FACILITIES. 2014 EDITION. A REPORT OF THE WASTEWATER COMMITTEE. OF THE. GREAT LAKES - UPPER MISSISSIPPI RIVER. BOARD OF STATE AND PROVINCIAL PUBLIC HEALTH AND. ENVIRONMENTAL MANAGERS. MEMBER States AND PROVINCE. ILLINOIS NEW YORK. INDIANA OHIO. IOWA ONTARIO. MICHIGAN PENNSYLVANIA. MINNESOTA WISCONSIN. MISSOURI. PUBLISHED BY: Health Research, Inc., Health Education Services Division Box 7126 Albany, 12224. Phone: (518) 439-7286. Visit Our Web Site Copyright 2014. by the Great Lakes - Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers This document, or portions thereof, may be reproduced without permission if credit is given to the Board and to this publication as a source.

2 Ii TABLE OF CONTENTS. CHAPTER PAGE. v 10 ENGINEERING REPORTS AND FACILITY PLANS. 10. 10-1. 11. Engineering Report Or Facility 10-1. 12. Pre-Design Meeting .. 10-12. 20 ENGINEERING PLANS AND SPECIFICATIONS. 20. Plans And Support Documents .. 20-1. 21. 20-5. 22. Revisions To Approved 20-5. 30 DESIGN OF SEWERS. 31. Approval Of 30-1. 32. Design Capacity And Design 30-1. 33. Details Of Design And Construction .. 30-1. 34. 30-7. 35. Inverted Siphons .. 30-8. 36. Sewers In Relation To 30-9. 37. Aerial 30-10. 38. Protection Of Water Supplies .. 30-10. 40 WASTEWATER PUMPING STATIONS. 41. 40-1. 42. Design .. 40-1. 43. Suction-Lift Pump 40-7. 44. Submersible Pump Stations - Special Considerations .. 40-8. 45. Screw Pump Stations - Special Considerations .. 40-9. 46. Alarm Systems .. 40-10. 47. Emergency Operation.

3 40-10. 48. Instructions And Equipment .. 40-14. 49. Force Mains .. 40-14. 50 WASTEWATER TREATMENT FACILITIES. 51. Plant Location .. 50-1. 52. Quality Of Effluent .. 50-1. 53. Design .. 50-1. 54. Plant 50-4. 55. Plant Outfalls .. 50-6. 56. Essential Facilities .. 50-7. 57. Safety .. 50-10. iii 58. 50-14. 60 SCREENING, GRIT REMOVAL, AND FLOW EQUALIZATION. 61. Screening 60-1. 62. 60-5. 63 Grit Removal Facilities .. 60-6. 64. Preaeration .. 60-8. 65. Flow Equalization .. 60-8. 70 SETTLING. 71. 70-1. 72. Design Considerations .. 70-1. 73. Sludge And Scum Removal .. 70-5. 74. Protective And Service 70-6. 80 SLUDGE PROCESSING, STORAGE, AND DISPOSAL. 81. 80-1. 82. Process Selection .. 80-1. 83. Sludge 80-1. 84. Anaerobic Sludge Digestion .. 80-2. 85. Aerobic Sludge Digestion .. 80-10. 86. High pH Stabilization.

4 80-13. 87. Sludge Pumps And Piping .. 80-16. 88. Sludge 80-17. 89. Sludge Storage And Disposal .. 80-21. 90 BIOLOGICAL TREATMENT. 91. Trickling Filters .. 90-1. 92. Activated 90-6. 93. Wastewater Treatment Ponds .. 90-19. 94. Other Biological Systems .. 90-29. 100 DISINFECTION. 101. 100-1. 102. Chlorine 100-1. 103. 100-6. 104. Ultraviolet Disinfection .. 100-9. 105. Ozone Disinfection .. 100-11. 110 SUPPLEMENTAL TREATMENT PROCESSES. 111. Phosphorus Removal By Chemical Treatment .. 110-1. 112. High Rate Effluent Filtration .. 110-5. APPENDIX HANDLING AND TREATMENT OF SEPTAGE AT. A WASTEWATER TREATMENT A-1. iv FOREWORD. In 1947, a "Committee on Development of Uniform Standards for Sewage Works" was created by the group now known as the Great Lakes - Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers.

5 This Committee, composed of a representative from each of the ten States , was assigned the responsibility to review existing Standards for sewage works, to investigate the possibility of preparing joint Standards to be adopted by the States represented, and to report its findings to the Board. Based on this initial report, the Board authorized the Committee to prepare sewage works design Standards , which were first published in 1951. They subsequently were revised and published again in 1960, 1968, 1971, 1973, 1978, 1990, 1997, and 2004. In 1977, the Province of Ontario was invited, as a Great Lakes participant, to serve on the Committee. These Standards have again been revised and are published herein as the 2014 edition. They are intended for use as a guide in the design and preparation of plans and specifications for wastewater facilities insofar as these Standards are applicable to normal situations for an individual project.

6 The design criteria in these Standards are intended for the more conventional municipal wastewater collection and treatment systems. Innovative approaches to collection and treatment, particularly for the very small municipal systems, are not included. The individual reviewing authority should be contacted for design guidance and criteria where such systems are being considered. Lack of description or criteria for a unit process or equipment in these Standards does not suggest it should not be used, but only that consideration by the reviewing authority will be on the basis of information submitted with the design. Engineering data that may be required for new process and application evaluation is included in Paragraph of these Standards . The contingency planning requirement in Paragraph (j) is intended to help users determine potential risk in meeting Standards of performance on a long term basis, and to help determine the stage of development for technologies satisfying the criteria of Paragraph These Standards are intended to suggest limiting values for items upon which an evaluation of the plans and specifications will be made by the reviewing authority; and to establish, as far as practicable, uniformity of practice among the several States and province.

7 Statutory requirements, regulations, and guidelines among the States and province are not uniform and use of the Standards must adjust itself to these variations. Users also should be cognizant of locally adopted regulations or Standards and applicable federal requirements. The term "shall" is used where practices are sufficiently standardized to permit specific delineation of requirements or where safeguarding of the public health or protection of water quality justifies such definite action. Other terms, such as "should," " Recommended ," and "preferred," indicate desirable procedures or methods, with deviations subject to individual consideration. Definition of terms and their use in these Standards is intended to be in accordance with GLOSSARY -- WATER AND WASTEWATER CONTROL ENGINEERING, jointly prepared by APHA, ASCE, AWWA and WPCF.

8 The International Standard Units are in accordance with those Recommended in National Institute of Standards and Technology (NIST) Guide for the Use of the International System of Units (SI). The customary units of expression used are generally in accordance with manual of Practice No. 6, INTERNATIONAL STANDARD UNITS FOR. WATER AND WASTEWATER PROCESSES, jointly prepared by AWWA, IWA and WEF. v CHAPTER 10. ENGINEERING REPORTS AND FACILITY PLANS. 10. GENERAL. Engineering Services Engineering services are performed in three steps: a. Engineering Report or Facility Plan;. b. Preparation of construction plans, specifications, and contractual documents; and c. Construction compliance, inspection, administration, and acceptance. Chapter 10, Engineering Reports and Facility Plans, covers only item (a). above.

9 Preliminary Project Submittal A preliminary project submittal may be necessary prior to the preparation of an Engineering Report or Facility Plan. This submittal needs to include: a. A description of problems or developments which have resulted in consideration of a wastewater facilities project;. b. Identification of governmental and consultant representatives authorized to provide information and seek regulatory agency approvals and decisions regarding the project; and c. Identification of potential treated wastewater discharge locations and flows for the purpose of regulatory agency determinations of suitable effluent quality requirements. No approval for construction can be issued until final, detailed plans and specifications have been submitted and approved by the appropriate reviewing authority.

10 Refer to Chapter 20. 11. ENGINEERING REPORT OR FACILITY PLAN. An Engineering Report or Facility Plan identifies and evaluates wastewater related problems; assembles basic information; presents criteria and assumptions;. examines alternate projects (with preliminary layouts and cost estimates);. describes system reliability for each unit operation with the largest unit out of service; describes financing methods; sets forth anticipated charges for users;. reviews organizational and staffing requirements; offers a conclusion with a proposed project for client consideration; and outlines official actions, time schedules and procedures to implement the project. The document shall include sufficient detail to demonstrate that the proposed project meets applicable criteria. 10-1. ENGINEERING REPORTS AND FACILITY PLANS CHAPTER 10.