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7. Blocks and lots: These standards are listed in MCC 16.33.360 through 16.33.440 and include: 16.33.360 SUBDIVISION. Block lengths and widths shall be determined after considering the following factors: A. The distance and alignment of existing blocks and streets adjacent to or in the general vicinity of a proposed subdivision; B. Topography; C. Lot size; and D. Need for and direction of the flow of through and local traffic. Blocks shall not exceed 600 feet between street or road right-of-way lines unless the adjacent layout or special conditions justify greater length. Except where topographical or other physical features require otherwise, block widths shall not be less than 120 feet or greater than 400 feet. Under the proposal, Tierra Drive will be extended to the south and result in a block length of approximately 760 feet which exceeds the 600 foot maximum standard. The applicant has requested an adjustment to this standard. The adjustment criteria are listed in MCC 16.41.030 and include: (a) The proposed development will not have a significant adverse impact upon adjacent existing or planned uses and development; and (b) The adjustment will not have a significant adverse affect upon the health or safety ofpersons working or residing in the vicinity; and (c) The adjustment is the minimum necessary to achieve the purpose of the adjustment and is the minimum necessary to permit development of the property for the proposed use; and (d) The intent and purpose of the specific provision to be adjusted is clearly inapplicable under the circumstances; or, the proposed development maintains the intent and purpose of the provision to be adjusted. The standard being adjusted is to allow a block length in excess of 600 feet. The applicant indicates that Tierra Drive was always intended to extend and serve the subject property. Due to existing development to the west and south, the only way for the block to be shortened would be for a street to connect to Hollywood Drive which would result in more through traffic on Tierra Drive. Extending the block length beyond 600 feet should have little or no significant adverse impact on adjacent lands or on the health and safety of persons living in the area. Realigning the existing drainage canal and extending Tierra Drive beyond 600 feet allows a more efficient use of the land and easier access to the canal. The primarily purpose of limiting block length is to better accommodate traffic flow, however, since this is an infill subdivision that is partially bisected by a drainage canal; an extended block length will not an adverse effect traffic flow. The adjustment criteria are met. 16.33.380 MIDBLOCKPEDESTRL4NACCESS. Where topographic or other conditions make necessary a block of unusual length, the commission may require midblockpedestrian walks with a right-of-way at least 10 feet in width which shall be hard surfaced through the block, and extending from street curb to street curb. LDEP did not identify a need for a midblock pedestrian access. 16.33.400 LOT SIZE. All lots approved under this chapter shall have sufficient area to be consistent with the intent of the comprehensive plan and to provide adequate area for the intended structures and uses, all setbacks, access and spacing required for water supply and wastewater disposal. Lots to be served by public or privately owned sewage collection and disposal system must meet the requirements and have approval of the Oregon State Department of Environmental Quality before being recorded or sold. State regulations, soil types, drainage, terrain, and location may be included as part of the criteria used by the state or county in determining ap- propriate lot sizes for lots using subsurface disposal of sewage. Lot size and dimensions shall be as prescribed in the corresponding zone. In the RS zone, MCC16.02.120 states: A. LotArea. The minimum lot area for a single family dwelling in a subdivision approved after the effective date of the ordinance codified in this title, is 4, 000 square feet when located within the Salem/Keizer area