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Council proposes a separate 'stormwater' matrix and guidance for wet/dry sampling
Summary
Staff proposed adding a distinct 'stormwater' matrix to separate MS4/permit-regulated effluent samples from ambient surface-water monitoring; participants urged recording wet vs. dry conditions and staff said SEEDin2 will add a wet/dry field and guidance will be added to sample comments.
At the December user-group meeting, staff proposed creating a separate "stormwater" matrix to distinguish permit-regulated point-source stormwater effluents (MS4, industrial, construction) from ambient surface-water samples used for integrated reporting.
"We're just calling the matrix name stormwater," database manager Tessa Foggitt said, explaining that the change will make it easier to exclude stormwater effluent…
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