A confidential corporation located east of Seattle, Washington is undergoing a large, redevelopment project on their 60+ acre campus. WaterTectonics is providing project support with both site permitting and construction stormwater treatment.
The project’s earthwork joint venture Goodfellow Brothers – Northwest Construction (GBNW), brought in the WaterTectonics’ regulatory team to formulate Wet Weather Plans required by the local jurisdiction. These plans address how water quality and erosion are controlled during the rainy season to meet discharge requirements.
WaterTectonics worked with the GBNW team to evaluate, design and provide construction stormwater treatment options to meet demands of such a large project. Four chitosan enhanced sand filtration (CESF) systems are being used to treat turbidity & pH. These systems each treat an average of 1,000 gallons per minute, with a max flow rate of 1,200 gallons per minute. WaterTectonics, as approved by the Washington Department of Ecology, provided Certified CESF Operator Training so that the GBNW staff can operate the system reducing operational costs.