City of Tacoma Environmental Services AMGPublic Tacoma Wastewater Network. This service references a simplified version of the production data and does not show privately owned assets. Data is updated nightly Monday-Wednesday and Friday. Derived elevation values are calculated using the National Geodetic Vertical Datum of 1929 (NGVD 29)(feet). Contact: Vanessa Simpson, IT Analyst, Senior Technical (GIS) vsimpson@cityoftacoma.orgArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/96951f2785e744919bd75a601d2205b1_23engTacoma Open DataPublicWastewater Discharge Point [Washington (State)--Tacoma]Web servicesWashington (State)--TacomaWashington (State)Last Modified: 2025-10-01