TagStormwater(62)

The City of Normandy Park, Washington completed several infrastructure improvement projects in 2017-18, including a $330,000 sidewalk project on 1st Avenue, a $2.2 million stormwater and paving project serving 250 homes in the Manhattan View area, and a $1.6 million Normandy Road Project. Additional work included a $375,000 road overlay on Marine View Drive and $25,000 in Recreation Center sidewalk and access improvements. This document provides a photographic overview of completed municipal construction projects in Normandy Park.

This archive documents a long history of water pollution discharged from Seattle-Tacoma (Sea-Tac) Airport into nearby waterways, dating back to 1948. It includes Discharge Monitoring Reports filed by the Port of Seattle showing high concentrations of glycol and other chemicals flowing into local stormwater systems and ultimately Puget Sound, as well as historical letters from the 1950s describing fish kills in Miller Creek and Des Moines Creek caused by airport runoff. The records reveal decades of regulatory correspondence between the Port of Seattle and Washington State pollution authorities over inadequate waste disposal practices.

This document is an NPDES (National Pollutant Discharge Elimination System) permit fact sheet for Sea-Tac International Airport, issued by the Washington State Department of Ecology. It details the locations of numerous water discharge outfalls across the airport property, covering industrial wastewater, stormwater from industrial activities, and stormwater from construction activities. The discharges flow into several local waterways including Des Moines Creek, Miller Creek, Walker Creek, Gilliam Creek, and Puget Sound.

This legal brief was filed by Citizens Against Sea-Tac Expansion before the Washington Supreme Court, challenging a decision by the Pollution Control Hearings Board regarding the expansion of Seattle-Tacoma International Airport. The group argues that state regulators improperly allowed the Port of Seattle to rely on future, unwritten stormwater permits as proof that airport runoff would meet water quality standards, and that regulators wrongly pre-authorized pollution mixing zones in nearby waterways without sufficient oversight. The case centers on whether proper environmental protections were in place before approving the airport expansion project.

This document lists 16 permit conditions related to environmental protections at what appears to be a Port development project, showing which conditions were accepted and which were appealed. Conditions covering stormwater management, wetland mitigation, fill criteria, and water quality monitoring were contested, with 8 of the 16 conditions formally appealed. Accepted conditions include stormwater sampling, wetland hydroperiod matching, and long-term contamination monitoring requirements.

This legal brief was filed before Washington State's Pollution Control Hearings Board by community groups challenging a stormwater discharge permit issued to the Port of Seattle for Sea-Tac Airport. The groups argue that Lake Reba, a detention pond on airport property, should be protected as a 'water of the state' and that the permit unlawfully fails to regulate or monitor the airport's industrial stormwater discharges from Lake Reba into Miller Creek. The appellants contend that, unlike other waterways affected by the airport, Lake Reba's discharge point was not even identified as an outfall, leaving it subject to no effluent limits, monitoring, or reporting requirements.

The Port of Seattle filed a pre-hearing brief challenging aspects of a 2003 water pollution permit issued by Washington State's Department of Ecology for Seattle-Tacoma International Airport (Sea-Tac). The permit, considered one of the most stringent stormwater permits in the country, sets numeric water quality limits, requires extensive toxicity testing, and mandates upgrades to the airport's stormwater and wastewater management systems. The brief addresses a range of contested issues, including effluent limits, sampling requirements, and construction stormwater controls.