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<br />City of Everett • 2024 Comprehensive Sewer Plan • October 2025
<br />Executive Summary • ES-3
<br />Table ES-1 | WAC 173-240-050 Requirements
<br />Section Section Description Location in 2024 Plan
<br />3.a The purpose and need for the proposed plan. Chapter 1, Section
<br />1.1.1
<br />3.b A discussion of who will own, operate, and maintain the systems. Chapter 3, Section 3.1
<br />3.c The existing and proposed service boundaries. Chapter 3, Sections
<br />3.1, 3.2, & 3.4
<br />3.d.i Boundaries. The boundary lines of the municipality or special district to be
<br />sewered, including a vicinity map;
<br />Chapter 3, Figure 3-1,
<br />Figure 3-8, & Figure
<br />3-10
<br />3.d.ii Existing sewers. The location, size, slope, capacity, direction of flow of all
<br />existing trunk sewers, and the boundaries of the areas served by each; Chapter 6
<br />3.d.iii
<br />Proposed sewers. The location, size, slope, capacity, direction of flow of all
<br />proposed trunk sewers, and the boundaries of the areas to be served by
<br />each;
<br />Chapter 11
<br />3.d.iv
<br />Existing and proposed pump stations and force mains. The location of all
<br />existing and proposed pumping stations and force mains, designated to
<br />distinguish between those existing and proposed;
<br />Chapter 6, Chapter 7,
<br />Chapter 11
<br />3.d.v
<br />Topography and elevations. Topography showing pertinent ground
<br />elevations and surface drainage must be included, as well as proposed and
<br />existing streets;
<br />Chapter 3, Figure 3-2
<br />3.d.vi
<br />Streams, lakes, and other bodies of water. The location and direction of flow
<br />of major streams, the high and low elevations of water surfaces at sewer
<br />outlets, and controlled overflow. All existing and potential discharge
<br />locations;
<br />Chapter 3, Figure 3.2
<br />& Figure 3-4
<br />3.d.vii Water systems. The location of wells or other sources of water supply, water
<br />storage reservoirs and treatment plants, and water transmission facilities. Chapter 3, Figure 3-6
<br />3.e
<br />The population trend as indicated by available records, and the estimated
<br />future population for the stated design period. Brief description of
<br />methodology used to determine future population trends and the
<br />concurrence of any applicable local or regional planning agencies.
<br />Chapter 4, Section 4.2
<br />3.f
<br />Any existing domestic or industrial wastewater facilities within twenty miles
<br />of the general plan area and within the same topographical drainage basin
<br />containing the general plan area.
<br />Chapter 5, Section 5
<br />3.g A discussion of any infiltration and inflow problems and a discussion of
<br />actions that will alleviate these problems in the future.
<br />Chapter 5, Section 5.3;
<br />Chapter 7, Appendix E
<br />Hydraulic and
<br />Hydrologic (H/H)
<br />Modelling Tech Memo
<br />3.h A statement regarding provisions for treatment and discussion of the
<br />adequacy of the treatment. Chapter 8
<br />3.i
<br />List of all establishments producing industrial wastewater, the quantity of
<br />wastewater and periods of production, and the character of the industrial
<br />wastewater insofar as it may affect the sewer system or treatment plant.
<br />Consideration given to future industrial expansion.
<br />Chapter 5, Section 5.5
<br />Chapter 6, Appendix F
<br />WPCF Facilities Plan by
<br />Stantec, Inc (2021)
<br />3.j
<br />Discussion of the location of all existing private and public wells, or other
<br />sources of water supply, and distribution structures as they are related to
<br />both existing and proposed domestic wastewater treatment facilities.
<br />Chapter 3, Chapter 8
<br />3.k Discussion of the various alternatives evaluated, and a determination of the
<br />alternative chosen, if applicable. Chapter 11
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