TagConformity(39)

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  • 2024-05-13

    RCW 70.94.037: Transportation activities—”Conformity” determination requirements

    Washington State law RCW 70.94.037 requires that any transportation plan, program, or project in areas that don't meet federal air quality standards must be shown to conform with the state's air quality implementation plan before it can be approved or funded. The conformity determination must be made by the responsible state agency, local government, or metropolitan planning organization overseeing the project. Projects limited strictly to preservation or maintenance work are exempt from this requirement.

  • Box 78 Folder ‘Conformity’ monitors_0002

    Two photographs documenting traffic conditions at noise study Site 9 (SR 99 & SR 188, northeast corner on 188) and Site 10 (SR 188 & Military Road SW, on 188 southbound). The upper photo shows a Loomis Armored vehicle stopped at a 'Right Lane Must Turn Right' sign along a multi-lane arterial, while the lower photo shows the City of SeaTac street banner and a 'No Shoulder Driving' sign at the 188/Military Road intersection.

  • Box 78 Folder ‘Conformity’ monitors_0002

    Two photographs from a traffic study archive labeled 'Site 9' (SR-99 & 188th, NE corner on 188th) and 'Site 10' (188th & Military Road, on 188th southbound). The upper photo shows a 'Right Lane Must Turn Right' sign with a Loomis Armored vehicle stopped at a signalized intersection; the lower photo shows a City of SeaTac banner on a pole near a 'No Shoulder Driving' sign.

  • Box 78 Folder ‘Conformity’ monitors_0003

    Two field-survey photographs labeled 'Site 5' (SR-99 & 200th St NE, camera facing NE on 200th) and 'Site 6' (SR-99 & S 188th St SE, camera facing SE on 99). Site 5 shows a cigarette advertisement sign priced at $8.49 per carton near a gas station; Site 6 shows the signalized intersection of S 188th St with a Motel 8 and Thrifty car rental visible in the background.

  • Box 78 Folder ‘Conformity’ monitors_0003

    Two field photographs from a noise-policy survey, labeled in handwriting as 'Site 5' at the intersection of Highway 99 and 200th St NE (showing a cigarettes advertisement sign priced at $8.49 per carton and a gas station symbol) and 'Site 6' at the intersection of Highway 99 and S 188th St SE, showing red traffic lights, a Motel 8, a Thrifty rental car location, and a Stop sign. Both sites are along the Highway 99 corridor near Sea-Tac Airport.

  • Box 78 Folder ‘Conformity’ monitors_0001

    Two photographs appear to be part of a noise-monitoring site survey, showing (top) a utility pole with what appears to be a noise measurement device mounted on it at a signalized intersection, and (bottom) an inverted/reflected view of Seattle Monorail cars and commercial signage including a U.S. Bank sign. Handwritten annotations on the left margin reference site numbers and appear to be upside-down or mirror-written field notes.

  • Box 78 Folder ‘Conformity’ monitors_0000

    Top photo shows a noise monitor or sound-level meter mounted on a street-light pole at a signalized intersection, consistent with airport or traffic noise measurement fieldwork. Bottom photo shows the Seattle Center Monorail with its distinctive colored cars (blue, red, white) viewed from below, with a U.S. Bank sign and other commercial signage visible; handwritten annotations on the page reference 'Site' numbers and appear to be field-survey notes.

  • Box 78 Folder ‘Conformity’ monitors_0001

    Two photographs appear to be part of a noise or traffic monitoring site survey, showing a cylindrical noise measurement device mounted on a utility pole at a signalized intersection (top), and an inverted/reflected view of the Seattle Monorail with cars visible on the guideway and a U.S. Bank sign in the background (bottom). Handwritten annotations on the page reference site numbers and measurement details, consistent with a field documentation record.

  • Box 78 Folder ‘Conformity’ monitors_0000

    Two photographs mounted on a survey sheet with handwritten annotations referencing site numbers and directions (Side 2, Side 3). The upper photo shows a pole-mounted cylindrical noise monitor at a signalized urban intersection; the lower photo, shot from below, shows Seattle Monorail cars on the guideway above a commercial street with a visible U.S. Bank sign.
  • 2023-07-23

    NOx emissions analysis comparing DEIS and SEIS scenarios for Sea-Tac Airport operations

    A critic of the Sea-Tac Airport environmental review process argues that the Supplemental EIS (SEIS) inconsistently reports nitrogen oxide (NOx) pollution levels, showing decreasing or flat emissions even as annual aircraft operations increase significantly. The author contends the SEIS analysis appears biased to keep pollution figures below regulatory thresholds, contradicting earlier independent studies. Using a consistent per-plane emissions rate, the author recalculates that NOx tonnage should rise substantially alongside the projected growth in flight operations.